collector systems from china for crushers

china stone crushing processing plant equipment manufacturer and machinery provider - stone crushing processing plant technology and machine - powtech

Products induction Material stone after crushed is still big, usually can't delivery by belt conveyor. In order to save the cost, the crushing room usually set near by the mining spot. material stone need to be crushed into size 200-400mm, so that can be delivery easily.so the spot need to...

Products induction Material stone after crushed is still big, usually can't delivery by belt conveyor. In order to save the cost, the crushing room usually set near by the mining spot. material stone need to be crushed into size 200-400mm, so that can be delivery easily.so the spot need to set crushing equipment and enough space for the crushing equipment.

Principle Stone crushing production line is a combination of a series of special equipment manufacturing sand, gravel and other construction materials or industrial materials used, mainly consists of vibrating feeder, jaw crusher, impact crusher, vibrating screen, belt conveyor, electronic equipment composition, design production is commonly 50-800T/H, to satisfy different customer the processing needs, can be equipped with cone crusher, dust removal equipment etc.The crushing production line equipment has the characteristics of reliable performance, reasonable design, convenient operation, high efficiency and so on First of all, the stone from the feeder evenly sent an initial coarse crusher crushing, and then produced into the coarse material transported by belt conveyor to a crusher for further crushing, fine crushing stone into the shaker after distinguish different specifications of stones, over size requirements of feed back into the stone crusher again.

Advantage: The stone crushing production line has automation, large crushing ratio, high production efficiency and large processing capacity. After crushing, the product is cube shaped, with low content of needle and flake, no internal cracks, high compressive strength.

The equipment is easy to maintain and easy to use. At present, the new wear-resistant material with high strength and wear resistance is easy to use. It has small loss and long service life, and can bring considerable economic benefits for customers.

Stone crushing production line, crushing and processing successfully applied to rock limestone, basalt, granite, pebbles, breaking up the product quality completely reaches the GB14685-2001 standard to provide a qualified aggregate for the high road, railway, water conservancy, concrete mixing stations and other industries.

Stone production line (sand production line) special equipment is the production of architectural equipment, sand and stone stone equipment, which comprises a jaw crusher, stone crusher, impact crusher, impact crusher, vibrating feeder, vibrating screen, sand washing machine, belt conveyor. Our company has the characteristics of reliable performance, reasonable design, easy operation, high efficiency and so on.

Application of gravel production line for hydropower, building materials, highway, city construction and other industries, can be used for hard limestone, granite, Xuan Wuyan, river gravel, slag and other materials aggregate and making artificial sand production and processing operations, highway pavement material, pavement macadam, high grade highway, high-speed railway passenger line aggregate hydropower station sand stone, port and airport runway with crushed stone and other special field especially for construction.

The crushed stone production line is mainly composed of vibrating feeder, jaw crusher, counter impact crusher, vibrating screen, belt conveyor, centralized electric control and other equipment. In order to meet the different processing needs of customers, it can be equipped with cone crusher, dust removal equipment and so on.

Large stone by silo by vibrating feeder evenly sent to the jaw crusher are crushed, crushed stone to the crusher for further crushing by belt conveyor; after crushing stones by belt conveyor sent to the sieve screening, screening gives several different specifications of stones, to meet the requirements of the stones size by finished tape conveyor to finished product stock pile; gravel does not meet the size requirements by belt conveyor feed back to the crusher are broken again, forming a closed loop several times.

plastic granulator - cl series - wiscon envirotech

A plastic granulator (rubber granulator) is a very important part of recycling. As per customer request, a granulator for plastic produces between 1200 2000 mm rotor sizes with a capacity between 1000 kg/hr to 3000 kg/hr.

Ensures smooth size reduction of plastic and rubbery products, such as PP, PE, PET, PVC in all sizes. The plastic granulator is usually used as secondary shredding due to its high rotational speed and sharp blades.

Featuring robust welded steel construction and stable operation, but during crushing, metal and similar hard foreign objects are not allowed to be disposed of into crushing chamber. 4 rotors are tailored for versatile applications and producing uniform regrind, whose size is determined by screen opening. The granulation machine offers 2 types of rotor: one for soft plastics and the other for hard plastics.

Rotor blades and counter blades adopt D2 steel. The main electrical components are trusted brands such as Siemens and Schneider. Hopper & cradle are hydraulically actuated for easy blade & screen replacement. Rotary and counter blades can be re-sharpened, greatly reducing operating costs. The screen of the Rubber granulatoris easily interchangeable.

your no.1 industrial dust collector manufactuer and supplier

The structure is mainly composed of a filter chamber, filter bag, clean air chamber, ash hopper, ash discharge valve, pulse injection device, electric control box, etc. The box body is an all-welded structure, and the inspection door is sealed with foam rubber strips to ensure that the dust collector is tight and does not leak.

And also suit for Pharmaceutical, paint, ink, floor production line, coating production line, chemical, food, automobile, motorcycle, electronics, container ships, cosmetics, fragrance, shoe factory, leather factory, wood products factory, arts and crafts, paper, adhesives, tire manufacturing, water treatment and other places.

what is a jaw crusher | advantages, types, parts and specifications | quarrying & aggregates

The series of jaw crushers produced by Rayco are widely used in mining and aggregate crushing industries. They are specially developed for crushing the hardest ores and rocks, and are mainly used as primary crushers.

When working, the motor drives the belt and pulley to move the movable jaw up and down through the eccentric shaft. When the movable jaw rises, the angle between the toggle plate and the movable jaw becomes larger, thereby pushing the movable jaw plate closer to the fixed jaw plate, and the material passes through the two jaws. The squeezing and rolling between the plates realize multiple crushing.

When the movable jaw descends, the angle between the toggle plate and the movable jaw becomes smaller. The movable jaw plate leaves the fixed jaw plate under the action of the pull rod and the spring, and the crushed material passes through the discharge port in the lower jaw cavity freely under the action of gravity Unload.

When crushing high hardness and strong corrosive materials, C6X can accomplish the task very well. Its equipment structure, manufacturing technology and material selection determine the high strength of its body. Not only can it be used for coarse crushing of the hardest rocks and ore, but also can be continuously produced in the most demanding production environment on the ground and underground to ensure the maximum production efficiency of customers.

vu tower-like sand-making system-sbm industrial technology group

To overcome unreasonable grading, excessive powder content and silt content and unqualified grain shape of traditional machine-made aggregate on the market, SBM pushes out the VU Tower-like Sand-making System. The aggregate produced always features excellent quality and the production process produces no sludge, waste water or dust, completely meeting the requirements for environmental protection.

Input Size: 0-15mm Capacity: 60-205TPH Material: Granite, marble, basalt, limestone, quartz, pebble, copper ore, iron ore, bluestone Application: Mixing plant, dry-mixed mortar and cement plant, other aggregate- or sand-making fields

VU Tower-like Sand-making System adopts original grinding technology and cascade fall shaping technology to make the finished aggregates have reasonable grading and mellow grain shape, which effectively reduces the specific surface area and porosity of coarse and fine aggregates. In addition, dry powder removing technology is adopted to make the powder content in the finished sand adjustable and controllable.

SBM's VU Tower-like Sand-making System can process cheap and easily available "aggregate chips" and "Guamishi" (a kind of pony-size stone) into high-quality sand with high value, thus making high profits. It is a way turning wastes into treasure. The produced sand can replace natural sand and satisfy potential market demands on high-quality sand so that the investors can get more returns on investment.

The VU Tower-like Sand-making System adopts totally enclosed structure and negative pressure dust control design which ensure no waste water, sludge, dust and noise during production, meeting the national environmental protection requirements.

VU Tower-like Sand-making system is equipped with the centralized control system which is able to control and monitor the operation of all devices online and to quickly set or maintain operational parameters at optimal status, so that the quality and capacity of finished aggregates gets well controlled.

There are tens of lines of numerical controlling machine tools. Operations such as steel plates' cutting, bending, planing, milling and paint spraying are all controlled numerically. The machining precision is high, especially for the core parts.

SBM, whose businesses cover production and sales, takes responsibility for every machine produced by ourselves. We can offer customers technical services about products and original spare parts to ensure the worry-free operation.

SBMs VU Tower-like Sand-making System consists of VU Impact Crusher (also known as VU Sand Maker), FM (Fineness Modulus) Control Screen, Particle Optimizer, Moisture Controller, Dust Collector, Central Control System and steel structure. It is a complete sand-making system that produces aggregates by dry process. After being crushed and shaped by the VU Impact Crusher, the tailings below 15mm are divided into three components under the action of FM Control Screen and Dust Collector--- stone powder, reverting material and finished sand product. Stone powder is collected by Dust Collector and stored at the fine ore bin while the finished sand product enters the Particle Optimizer for further dressing and then is taken the last processing step--- mixing in humid environment. Processed by VU Tower-like Sand-making System, raw materials can be turned into high-quality sand with reasonable grading, smooth shape and controllable powder content, and dry, clean, recycled and high-quality stone powder (Application fields depend on raw materials).

Product pictures and parameters about models, data, performances and specifications on this website are for reference only. There is a chance that SBM may make changes on above-mentioned information. For specific messages, please refer to the real objects and user manuals. Without special instructions, SBM keeps the right to explain all data involved in this website.

china dust removal system suppliers, manufacturers - factory direct price - welldone

In order to make a flat surface, the industrial products will be polished by coating machine before spraying on the surface. The workpiece will produce a large amount of metal dust, grinding wheel dust, fiber dust, waste painting dust and so on during polishing.

In order to make a flat surface, the industrial products will be polished by coating machine before spraying on the surface. The workpiece will produce a large amount of metal dust, grinding wheel dust, fiber dust, waste painting dust and so on during polishing. These dusts will inhale the workers' respiratory systems and produce respiratory occupational diseases, affecting the workshop environment. If metal dust is produced, it can also lead to electrical accidents in the workshop.

1. Small workbench dust collector, a small volume, quite, efficient automatic self-cleaning system, automatic self control system, longer service time by vertical cartridge structure, import filter material. Widely used for polishing, welding, grinding, finishing,

1) The exhaust inlets set the guide plate, to prevent the dust hit the filter directly, so as to prolong the service life of filter core. 2) There are exhaust inset around the worktable, can effectively control the dust flying. 3) adopts high efficient centrifugal fan, with high efficiency, stable operation function. At the same time, use the noise reduction processing for the fun to reduce noise. 4) workbench and dust removal function integration design, directly to remove the dust from the source 5) Compact structure, it occupies a limited area. 6) Pulsing back-flushing automatic dust-removal system, can guarantee the equipment in good working

6. Fine detailed design80mm noisedamping cotton, Mitsubishi frequency transformator, Mitsubishi PLC, Schneider switch and 5 lines plug, patent design Japan Toray filter cartridge, Siemens main motor, fine knock and wheel. All these details make amazing Welldone industrial dust collection system.

Welldone Environmental Protection Equipment (Changsha) Co., Ltd is the biggest industrial dust treatment solution provider in the central of China, manufacture and exporting industrial dust collector to many countries in the world. Provide the Laser-cutting and welding fume treatment solution for BOSCH, Toyota Motor, HITACHI, CIMC, SIASUN, Tenneco, Sumitomo, Johnson Controls, Fisher Dynamics, has equiped with ESAB, MESSER, KUKA, KOIKE, LINCOLN ect.

coal sampling system | auger coal sampler&sample preparation system

With the development of society and technology, the demand for energy sources has increased rapidly. Energy sources play an important role in national economy. Review the history of human being, there are three main revolutions in the energy sources use: firstly, coal replaces the wood to the main energy source; secondly, petroleum replaces the coal and takes up the dominant position. So far, the energy source structure is the universal application of multi-energy structures consisting of many energy sources such as nuclear solar energy. Although that, the coal and petroleum still occupy the dominant position. With the shortage of the petroleum, this condition emerges, the demand for coal increases per year.

Coal is one of the most difficult of material to sample, varying in composition from noncombustible particles to those which can be burned completely. Along with the industry developed, the demand for electricity grows with each passing days. Take China as an example, coal-fired power is the main methods of generating the electricity. The quality of coal is more and more important. Inspecting a sample is much less costly than inspecting the entire lot and the content of a sample does not always reflect the content of the lot. As we know, when samples are properly taken, the characters of the sample can stand for the entire lot characters. So how to get the representative sample is a key for coal sample analytics. According to the survey said, the bias results from sampling procedure mostly.

The traditional sampling method is the manual sample. This sampling method is a low-efficiency sampling method, which wastes time and the sample is non-representative. With the coal consumption increased, the new inspection standard has been introduced, and the manual sampling method cannot meet the requirement of the market. Meanwhile, manual sample means the sample result is controlled by the human, this sample cannot stand for the entire coal lot quality. So the mechanical sampling equipment fixes peoples eyes. Mechanical coal sampling equipment can increase the sampling efficiency, reduce the work intensity and weaken the human factor in the sampling procedure. So the mechanical sampling system is more and more popular. Coal sampling and coal sample preparation procedures are the most important procedures. Only collecting the representative sample, we can acquire the accuracy coal data. With the wide application of coal mechanical sampling system, whatever it is domestic trade ore the international trade, the pricing standard is based on the coal sample quality which sampled by the mechanical sampling system.

For many coal export and import countries, the mechanical sampling system and sample preparation system is more and more popular. For the mechanical sampling system, the United State has the more mature technology, so the price is much higher than others countries. For many small enterprises even the large-scale power plants, the United States mechanical sampling system is not suitable for them. As a China coal sampling system supplier, TOP Sampler advocates providing the mechanical coal sampling system with lower price and higher quality.

For Chinese coal sampling system, the Chinese mechanical coal sampling system technology had developed rapidly from the 1970s. Nowadays, Chinese mechanical coal sampling systems can meet different requirements and the ASTM D 7430 standard. Besides, Chinese coal sampling systems are the automatic sampling systems which controlled by the PLC control system and the coal sampling system technology is close to the international level gradually.

All these coal samplers belong to stationary samplers. On another hand, the stationary samplers have three types sample collectors that are auger sampler, grab sampler and shovel sampler. Among that, the shovel sampler and grab sampler cannot collect the representative samples and cannot cooperate with others sample preparation systems, so they are not popular among the sampling industry.

The coal auger sampler has wide applications. Firstly, auger coal sampler applies to the various coal sampling system. Auger samplers are compatible with the suspend-arm type sampling system, lift type sampling system and tower type sampling system. The auger samplers can be used in the stock ground, port, and other worksites. Secondly, the auger sampler can collect the sample from the truck, railcar, and heavy cargo vessel randomly. So the auger sampling system for the truck and cross belt sampling system become hot-sale sampling system. Compared with the human manual sampling method, the auger sampler has high-efficiency and avoids the human factors disturbance.

Besides, TOP Sampler also provides cross belt sampling system. This kind of coal sampling system is always used to the coal moving stream( coal conveyor belt). The cross belt sampling system has two main types that are head cross belt sampler and central cross belt sampler.

In term of the most coal sampling system, it is an integrity sampling system which includes the auger coal sampler and sample preparation system. Some coal sampling system manufacturers will provide the sample analytics system, either. TOP SAMPLER supplies the integrity sampling system which contains coal sampling system, sample preparation system and sample analytics system for different material. You can contact us to learn more details.

How does the sample preparation system work? The gross sample will send to the sample crusher, and the sample crusher will crush these gross samples to specified size sample according to the setup parameters. Then these crushed samples will be divided by the sample divider, and the final sample will be collected into the collection bottle and the redundant coal will back to the coal trucks or coal piles through the residue returns system.

TOP Sampler provides all these sample preparation machines. You can choose the separate machines or ultimate sampling system according to your requirements. Why choose TOP Sampler sampling system machines? As a sampling system manufacturer from China, the lower price is our biggest advantages. Secondly, our sample preparation machines have coal sample storage, automatic washing, and rain-proof function. The self-washing function is our shining advantage. For the viscidity coal, there are residues in the machine after using it. All the sample preparation machines support the automatic self-washing function in order to avoid blocking.

So far, we have introduced the coal sampling system. Not only the coal sampler, we also introduce the sample preparation machines. TOP Sampler as a sampling system manufacturer from China, We supply the sampling system machines with the lower price meanwhile ensuring the high-quality. Using the information discussed in this article, we hope we help you have a rough understandingabout the coal sampling system and make informed decisions on select sampling plans. If you want to learn more details or want to customize a turnkey sampling project, welcome to contact us. We are pleased to customize a feasible project according to your condition.

collection system

Collection systems are challenged by raw sewage with entrained solids that degrade pump and pipe internals. The influent solids can be abrasive and corrosive. Over time, the adverse effects include increased frictional resistance and higher energy consumption. ARC Efficiency & Protective Coatings reduce friction and increase reliability.

china side-suction grinding dust collector,dust extraction systems for grinding

Stationary fume extractors: MLWF350-dust bucket type, MLWF500-6T, MLWF500-6T dust bucket type, MLWF500-9T, MLWF800, MLWF800-dust bucket type, MLWF1000, MLWF1500, MLWF2000, MLWF3000, MLWF3500, MLWF4000). The electric control cabinet can be seperated from main equipment for convenient operation when the main equipment is placed outdoors.

Grinding dust extractors: MLWF100D, MLWF150D, MLWF200D, MLWF320-DM, MLWF180, MLWF380, MLWF480) and grinding cabinet (MLWF900). The grinding cabinet is usally equipped with telescopic or fixed grinding room, to form a semi-closed space to control dust and smoke spread. It also improves the filtration efficiency with low air volume and energy consumption.

In order to provide advanced products, our R&D department develops 3 to 5 new products every year, and irregularly improves the performance, appearance, and installation methods of existing products.

Cantilever dust removal can be used for manual welding conditions where the work stations are evenly distributed and the span is small. The smoke and dust generated by each welding station can be effectively absorbed at the dust generation point, and will not pollute other parts of the workshop. The skeleton of the suction arm is similar to a human arm and can hover in a space within a certain length. The outer layer of the suction arm is a temperature-resistant hose, which not only prevents the hose from being burned by sparks, but also ensures the flexibility of the movement of the suction arm. A unique rotating structure is designed on the position of the Suction Hood to ensure that the suction hood can be aligned with the welding position in any orientation, so that the suction arm can effectively capture the smoke and dust generated during the welding process. The advantage of the suction arm capture is that it can be close to the place where the smoke is generated, and the collection effect is better.

Cantilever dust removal can be used for manual welding conditions where the work stations are evenly distributed and the span is small. The smoke and dust generated by each welding station can be effectively absorbed at the dust generation point, and will not pollute other parts of the workshop. The skeleton of the suction arm is similar to a human arm and can hover in a space within a certain length. The outer layer of the suction arm is a temperature-resistant hose, which not only prevents the hose from being burned by sparks, but also ensures the flexibility of the movement of the suction arm. A unique rotating structure is designed on the position of the suction hood to ensure that the suction hood can be aligned with the welding position in any orientation, so that the suction arm can effectively capture the smoke and dust generated during the welding process. The advantage of the suction arm capture is that it can be close to the place where the smoke is generated, and the collection effect is better.

Room-type dust removal is suitable for the purification of fumes and smoke generated during the production of automated equipment, such as welding robots, welding machines, grinding, grinding and polishing of metal and plastic parts, drilling, thermal processing, cutting and crushing, stone processing, powder packaging, solid particles and various dusts and fumes produced by mixing and processing.

For working conditions such as robot automatic welding, circular seam and longitudinal seam welding, the smoke and dust purifier is installed with the robot workstation, so that the workstation has its own dust removal function. The fume and smoke are effectively collected through equipment components such as pipes and dust hoods. The room-type design prevents the volatilization and diffusion of smoke to keep the air in the workshop clean.

The working conditions with moderate welding workpieces and large amounts of dust and smoke are suitable for room-type treatment solutions. The room type centralized dust dedusting solution is divided into side suction and top suction method dust collecting ways. The appropriate solution can be designed according to the site conditions and treatment goals.

Blow-suction type dust removal solution is a ventilation air flow composed of blown air and inhaled air flow. Therefore, it is a dust removal method that can effectively control the spread of pollution sources. This dust removal method is installing exhaust inlets on two-span center column or single-span side column (wall) and air outlets on the opposite wall column to form a circulating air flow to drive the smoke and dust into the purification machine, consequently performing overall dust removal and purification in the workshop. This system occupies a small area and has obvious purification effect, which is suitable for the purification of smoke and smoke in more complex production workshops.

Jinan Moland Environmental Tech Co., Ltd., is located in No. 11889 Jingshi West Road, Changqing District, Jinan City, Shandong, China, established in 2016. It`s an environmental protection technology enterprise specializing in research, development, manufacture and sale of efficient smoke purification systems.

The company is committed to reducing the environmental impact of production process, protecting workers from harmful gases and dust, and creating a cleaner working environment. At present, the companys products have been successfully applied in automobile, railway, construction machinery, marine engineering, aviation and other mechanical processing industries, as well as new materials, grain, wood, recycled resources processing and other industries. The company has passed the ISO 9001 quality management system certification, obtained the certification of China Environmental Protection Products issued by China Environmental Protection Industry Association, and CE certification of EU. It also has a number of invention patents, utility model patents and appearance patents. Through continuous R&D and innovation, many products of the company have reached the international leading level.

Molands environmental services cover the whole process from project design, product manufacturing to installation, commissioning and after-sales service. We will provide you with the most professional governance program and the best quality service.

products and services lignar engineering

Our High Load (LHL) Filter System is a modular designed filter system for the continuous filtration of fine sanding dust, shavings, chips, fibres, and mineral wool. This system allows easy future expansion and flexibility, while ensuring reliable and stable operations within the factory. Coupled with our efficient cleaning system and highly efficient fans, our LHL Filter System guarantees considerable energy savings with low energy consumption and minimum maintenance cost.

Specially designed for high loadings and high pressure cleaning, Our LHL Filter System is available in both positive and negative pressure systems. The extracted warm air can be 100% recycled to the production sites.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

Our High Load (LHL) Filter System is a modular designed filter system for the continuous filtration of fine sanding dust, shavings, chips, fibres, and mineral wool. This system allows easy future expansion and flexibility, while ensuring reliable and stable operations within the factory. Coupled with our efficient cleaning system and highly efficient fans, our LHL Filter System guarantees considerable energy savings with low energy consumption and minimum maintenance cost.

Specially designed for high loadings and high pressure cleaning, Our LHL Filter System is available in both positive and negative pressure systems. The extracted warm air can be 100% recycled to the production sites.

Our High Load (LHL) Filter System is a modular designed filter system for the continuous filtration of fine sanding dust, shavings, chips, fibres, and mineral wool. This system allows easy future expansion and flexibility, while ensuring reliable and stable operations within the factory. Coupled with our efficient cleaning system and highly efficient fans, our LHL Filter System guarantees considerable energy savings with low energy consumption and minimum maintenance cost.

Specially designed for high loadings and high pressure cleaning, Our LHL Filter System is available in both positive and negative pressure systems. The extracted warm air can be 100% recycled to the production sites.

Our High Load (LHL) Filter System is a modular designed filter system for the continuous filtration of fine sanding dust, shavings, chips, fibres, and mineral wool. This system allows easy future expansion and flexibility, while ensuring reliable and stable operations within the factory. Coupled with our efficient cleaning system and highly efficient fans, our LHL Filter System guarantees considerable energy savings with low energy consumption and minimum maintenance cost.

Specially designed for high loadings and high pressure cleaning, Our LHL Filter System is available in both positive and negative pressure systems. The extracted warm air can be 100% recycled to the production sites.

Our High Load (LHL) Filter System is a modular designed filter system for the continuous filtration of fine sanding dust, shavings, chips, fibres, and mineral wool. This system allows easy future expansion and flexibility, while ensuring reliable and stable operations within the factory. Coupled with our efficient cleaning system and highly efficient fans, our LHL Filter System guarantees considerable energy savings with low energy consumption and minimum maintenance cost.

Specially designed for high loadings and high pressure cleaning, Our LHL Filter System is available in both positive and negative pressure systems. The extracted warm air can be 100% recycled to the production sites.

Our High Load (LHL) Filter System is a modular designed filter system for the continuous filtration of fine sanding dust, shavings, chips, fibres, and mineral wool. This system allows easy future expansion and flexibility, while ensuring reliable and stable operations within the factory. Coupled with our efficient cleaning system and highly efficient fans, our LHL Filter System guarantees considerable energy savings with low energy consumption and minimum maintenance cost.

Specially designed for high loadings and high pressure cleaning, Our LHL Filter System is available in both positive and negative pressure systems. The extracted warm air can be 100% recycled to the production sites.

Our High Load (LHL) Filter System is a modular designed filter system for the continuous filtration of fine sanding dust, shavings, chips, fibres, and mineral wool. This system allows easy future expansion and flexibility, while ensuring reliable and stable operations within the factory. Coupled with our efficient cleaning system and highly efficient fans, our LHL Filter System guarantees considerable energy savings with low energy consumption and minimum maintenance cost.

Specially designed for high loadings and high pressure cleaning, Our LHL Filter System is available in both positive and negative pressure systems. The extracted warm air can be 100% recycled to the production sites.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

Our LSB Filter Systems are enclosed, modular-designed bag filters for the continuous filtration of extracted air with high dustconcentration. Each system is equipped with an extra-powerful bag cleaning system with a reverse thrust fan to blow air backwards through the filter bags.

7 things to consider when purchasing a dust collector | donaldson industrial dust, fume & mist

Each dust collection situation can be very unique whether you're collecting wood chips, welding fume, or soybeans; therefore, its important to understand not only the dust you generate but also how your processes create that dust. Beyond just determining the required air volume to capture and control the dust created in your process, you should understand and define all the needs in your operation.

As an example, does your process generate dust only under upset conditions, or is dust generated continuously while the process runs? Does your process run intermittently for a few hours a day? Or is it run continuously for 8, 16, or 24-hours a day? If you have multiple processes, do they all run at the same time? Or do some run on different schedules? Each of these conditions influences the number and style of collectors you might consider.

Do you generate enough dust quantity to dispose of dust multiple times a day? Or is dust loading light enough for daily, weekly, or even monthly disposal? Your answer will influence the discharge methods you consider to remove dust from the collector and may suggest alternate collectors with fewer or more hoppers.

Are there regulatory standards you need to meet when returningfiltered air into your facility to take advantage of energy savings in heating and cooling make-up air? Or will you exhaust filtered air to atmosphere? If you exhaust filtered air to atmosphere, do regulatory limits exist on the air quality required? These considerations will all have a direct influence on your choice of collector and filter media, and they may drive decisions on including secondary or monitoring filters.

When it comes to dust collectors, a one-size-fits-all approach seldom meets the specific needs of each customer. Can your supplier provide the features you need for your situation? In many cases, space constraints on height or footprint drive the need for collector customization. Will the dust collector supplier be able to incorporate ancillary items such as discharge devices, monitoring equipment, or fire and explosion mitigation equipment? Can they provide special coatings or modify the collector to provide special pressure ratings if needed? How often does the supplier provide these types of modifications? And are they willing to help with advice on such options and accessories?

The answers you determine to the first consideration on this list will suggest a variety of solutions - some offering benefits over other solutions. Will your dust collector supplier offer a variety of collector solutions? Or will the supplier attempt to make one collector fit every situation?

Beyond selecting the cartridge, bag or fluted media available on the market, options such as intermittent or continuous cleaning can play a significant role in your collector strategy. Optimizing the match between your process and a collector design can reduce the equipment cost and the operating costs.

It is also important to consider utility requirements to operate a collector. Will you have compressed air readily available where the collector is going to be installed? How often will the dust collector be run? Who will operate and maintain the dust collector? How much horsepower will the collector consume during operation? Can you minimize cost by only running the collector when dust is being generated? Is it possible to employ variable frequency drive technology with the collector, rather than a damper to further reduce operating costs? Will the collector being offered by the supplier meet any specific air quality for the outlet emissions? How will you monitor that air quality level?

The primary factors for ease of installation are typically the size of the dust collector and the location the collector will be installed. Large, centralized collectors represent one end of the spectrum; requiring one or more cranes and an installing contractor to fabricate and install ducts and associated equipment. If you can accomplish your needs with smaller collectors or possibly plug-and-go units located either at or very close to the point of dust creation, you can limit or possibly eliminate the need for ductwork. This reduces installation to a fork truck and the necessary routing of electrical and compressed air supplies to the collector.

Understanding the process, localizing dust collection, and minimizing collector size all help simplify installation of collectors and their associated equipment. In addition, a review of the collector's Installation and Operation Manual before installation starts can identify tools and/or unique items necessary for a smooth installation. This review can also highlight sequences of assembly that can simplify installation. As an example, collectors often have hopper and leg sets that need to be assembled on the job site. In some cases, assembling the sections is easier if the hopper starts out upside-down and the entire unit is inverted after the legs are attached. In other instances, it is easier to assemble the legs and then lower the hopper onto the leg pack. The Installation, Operation, and Maintenance manual will often illustrate these and other assembly details.

Unfortunately, just installing a dust collector does not complete your dust collection strategy. You will be operating the collector for the life of your process. This means that beyond the dust collectors capital cost, you should consider the operational costs to ensure youre considering the best value over the full life cycle of your dust collection system.

Replacement filters or parts, lost production due to downtime, and energy consumption during operation are all costs and expenses that add up quickly. To find the best collector fit for your process, work with your dust collector supplier to compare initial and operational costs of different collectors.

The style of collector you select may influence the energy required to filter the air. Filters operating at lower stable pressure drop require less frequent cleaning, often last longer, and typically reduce the power required to pull air through your dust collection system. Sometimes several smaller collectors dedicated to portions of your operation will save operating expense without increasing capital cost. In other situations, centralized collectors may offer benefits in ease of service.Ensure you explore options in collector style, location, and design before you make any purchase.

In considering the operational costs of a collector, remember you will eventually need to order new filters or replacement parts. Obtaining a list of common replacement parts from your dust collector supplier will help you understand what items you may need to purchase in the future. Determine if these parts are kept in stock with your supplier, or if you will need to purchase and inventory them yourself. Ask if you need to work through an aftermarket sales representative to purchase items or if the items are available through other supply channels. You may also want to proactively learn from the collector supplierwho will be available to help if technical issues arise or assistance is neededand how you would go about contacting them.

Selecting and installing a dust collector will be a decision you live with for many years. Taking the time to evaluate your needs and the alternatives available for dust collection will provide benefits for years to come. That investment lets you make a well-informed decision that could reduce your initial costs and increase your ongoing satisfaction with the dust collection system. And when it comes to purchasing a dust collector, it doesnt get much better than that.

When the solution can help improve uptime. If you know the cost of your hourly downtime, it is easier to prioritize IoT projects that keep you up and running. In a survey sponsored by Donaldson, 38% of facility engineers reported that, if their dust collector fails, their production line must shut downat an average cost of $3,700 per hour. If your facility requires a reliable dust collector, calculate your downtime costs and compare them with the costs of subscribing to an IoT-enabled monitoring service.

When it can help reduce cost of equipment ownership. Ask yourself if the IoT solution will pay off in longer-lasting equipment or parts. In dust collectors, for example, filters may last longer with proper monitoring. One facility we work with was having to replace filters every six weeks and could not identify the cause. With connected monitoring, the issue became clear: inadequate compressed air pressure. The facility was able to address the issue and restore filter life to approximately one year. Where could real-time information help reduce your recurring costs?

When it can assist with improving regulatory compliance. Are you tasked with reporting data about your dust collector performance to a local, state, or federal authority having jurisdiction? You may often have to spend time walking to dust collectors and manually recording data, then later manually entering that data for storage.This is a time-consuming process that can lead to outdated reports or human errors. A connected dust collector automates data collection on factors such as differential pressure. This ensures up-to-date information during an audit, and reduces the errors often associated with manual entry.

In short, ask where a connected solution can spare you downtime, reduce equipment costs, and/or help you comply with regulations. With any or all of these benefits, an IoT solutionmay be a sound investment.

data acquisition and transmission system for building energy consumption monitoring

Liang Zhao, Jili Zhang, Ruobing Liang, "Data Acquisition and Transmission System for Building Energy Consumption Monitoring", Abstract and Applied Analysis, vol. 2013, Article ID 613043, 8 pages, 2013. https://doi.org/10.1155/2013/613043

Building energy consumption monitoring and management system have been developed widely in China in order to gain the real-time data of energy consumption in buildings for analyzing it in the next state work. This paper describes a low-cost and small-sized collector based on the STM32 microcontroller, which can be placed in a building easily to implement the work of data acquisition, storage, and transmission. The collector gathers the electricity, water, heat, and energy consumption data through the RS485 field bus and stores the data into an SD card with mass storage, finally, using Internet to finish the communication and transmission to data server through TCP protocol. The collector has been used in application for two years, and the results show that the system is reliable and stable.

With the rapid growth of world energy uses, also increases a series of serious problems, such as supply difficulties, exhaustion of energy resources, and negative impact on the environment (atmospheric pollution, greenhouse effect, climate change, destroy of ozonosphere, etc.). According to the IEA (International Energy Agency), primary energy has grown by 49% and CO2 emissions by 43% in the past two decades. Particularly in China, the energy consumption has become 2 times at an average growing rate of 3.7% [1], and China has passed the US to become the world's biggest energy consumer, based on the new data from the IEA. In the future, this growing trend will continue, and the demand is still growing in absolute terms.

In all kinds of energy consumption, industry, transportation, and construction are the three main aspects. Energy consumption of a building can reach 40% of total energy consumption, according to the experience of developed countries. Therefore, energy saving of buildings becomes one of the major tasks of promoting energy conservation and raising the efficiency of energy consumption. Transformation of the old buildings is currently facing a major problem that experts and scholars have repeatedly stressed on when talking about the promotion of energy-saving construction. The dwellers obtain electricity and water bills every month and know the amount of energy consumption exactly. However, almost nobody knows when energy consumption occurs and where it takes place; the users can make more sensible decisions to lower the energy consumption if they find out where and when the energy consumption happens in a well and true way [2].

In order to gain real-time data of energy consumption in buildings and build the platform for evaluating energy-saving effect, the building energy consumption monitoring and management system must be developed [38]. A data acquisition system and a methodology concerning the energy consumption of the government office buildings and large-scale public buildings (GOBLPB), which is the focus of energy-saving target, have been developed in China [3]. In paper [4], Yongpan et al. presented the system architecture of a monitoring system of building energy consumption; software subsystem of the server and database pivotal technologies are also introduced in detail. The studies of asynchronously switched control of linear systems and control synthesis for time-delay systems are also putting forward the energy consumption monitoring platform [57]. In the relevant literature [8], a BACnet-based intelligent energy management network using a surrogate object-communication model is proposed. There are already several researches discussing how to design a system for monitoring energy consumption in buildings, which contains so many techniques, such as data acquisition technique in perception layer, data transmission technique in network layer, data display technique in the presentation layer, database technique, website development, and electronic maps, however, barely on the data collector, a key component between buildings and server, which plays a major role in affecting the performance in realistic implementations.

This paper proceeds with data acquisition, data storage, and data transmission modules, regard STM32 as microcontroller, have made overall and deep analysis to design a collector used in energy monitoring system. The hardware and software designs of these modules are at great length described separately. The paper is organized as follows. In the following section, we introduce the design of data acquisition and transmission system, which includes system overview, microcontroller module, data acquisition module, data store module, data transmission module, and clock module. Application cases study examples are described in Section 4; in this part, the operational features are presented. Finally, we give the summary and make an expectation of the future work.

The main work for the system of data acquisition and transmission is to collect energy consumption data (electricity, water, gas, heating, etc.) from terminal meters which are installed in buildings periodically, store the data after analyzing and processing, and finally transmit the data to data server through Ethernet. We design a low-cost collector which consists of the following parts.(1)STM32 microcontroller module, communicating with other modules and processing data before it isstored and transmitted,(2)RS485 data collect module, gathering energy consumption data based on an RS485 serial communication bus network,(3)SD card store module, driving mass-storage SD standard based on FAT32 and saving the data into SD card as the format of XML in chronological order,(4)EEPROM store module, taking charge of storing configuration parameters of the collector,(5)network transmit module, mainly communicating with remote data server through Ethernet,(6)clock module, providing time flags for collector to gather, store, and transmit,(7)DC-DC power module, which is an isolated power supply for RS485 module,(8)debug circuit, reset circuit, and power circuit, which are the basic configurations for STM32 microcontroller,(9)the watchdog circuit, which plays a role of anti-interference in working process so that the reliability of system is greatly enhanced.

A block diagram and an actual photograph of the collector are shown in Figures 1 and 2, respectively. The hardware and software designs of these modules are explained in the following discussion in detail.

Microcontroller is the main component in this system which acts as a computer to configure the system, communicate with other modules and data analyzing. The microcontroller used in this research is on STM32F103VET6 chip from ST Company, which is a 32-bit microprocessor based on ARM Cortex-M3 core. The chip contains 512kB Flash, 64kB SRAM, 8 timers, and multi-interfaces, such as CAN interface, SPI interface, and USART serial communication interface, [9]. Its developing environment, RealView Microcontroller Development Kit (MDK), uses IDE environment Vision, which has the ability to generate reentrant code. It fully meets the requirements of the design of the collector.

The system flowchart is shown in Figure 3. Collector sends a TCP connection to data server after system initialization continuously, until the connection is successful. Then, server will check the validity identification by building ID and collector ID, which is a unique attribute of the collector. With success, the collector could extract useful information from configuration packet received from the data server, which contains collecting and transmitting period, terminal meter parameters that include manufacturer, meter number, and communication address; otherwise, it will close the connection and reconnect. From there, collector begins to enter into the normal work mode, to acquire the energy consumption data by order, to store the data into SD card in the format of XML, and to transmit the XML data packets to the server according the setting period from the configuration packets. Meanwhile, data collector sends a heartbeat packet to the server every minute to maintain the connection, while the server gives a synchronous time packet as a reaction to update the time information of all the collectors in order to guarantee the energy consumption data with a consistent format. When failure occurs in the process of data gathering, the collector records the number of terminal meter and reports it to the server.

Field bus is the hottest automation technology today which has been used in building automation widely, such as BACnet, CAN bus, EIB bus, and RS485, [1012]. This research uses RS485 as communication bus, mainly because of its reliable networking communication and lower cost initial capital outlay; besides that, most of the measurement meters in the current situation only support RS485 field bus. The theoretical max distance between slave device and master is 1200 meters; however, when the distance is too long, repeaters must be adopted to ensure the stable transmission.

This paper uses ADM2483 chip, with electrical data isolation, to realize RS485 circuit. The internal diagram is shown as Figure 4; the pins on the left side, VDD1, TxD, DE, RxD,, and GND1, are connecting to the logic side, while the other side pins, VDD2, A, B, and GND2, are in the bus side connecting with theterminal meters. RS485 is bidirectional half-duplex data transmission; here, use an IO pin of STM32 to connect the control pins of ADM2483 DE and together. When the pin output is at high level, the DE enabled and the collector could send data to the bus; otherwise, the enabled and the collector could receive data from the bus through interrupt service routine.

Figure 5 describes the flowchart of acquisition. The collector sends command of gathering to the meters one by one, unless the value of address reaches the configured number by server. If the routine encounters breakdown by accident, we will offer three times to communicate the faulted branch. Finally, the address and number of the faulted branch will be recorded and feedback as an error XML packet to the server, after the last effort. The communication baud rates are different due to a variety of meters installed in the monitoring system. Electrical meters communication speed is almost 9600bps, while the baud rate of most of water meters is 1200 or 2400bps. Hence, the parameter of expiration time is critical to obtain a stable and efficient system, and this value could be gained with plentiful experiments.

An XML schema defines element and attribute names for a class of XML documents. The schema also specifies the structure that those documents must adhere to and the type of content that each element can hold. The elements in XML are sorted by meter types. Table 1 shows coding of different meters, which can be extended in future.

In general, electric meter has many parameters to be monitored, including three-phase voltage, three-phase current, three-phase active power, power factor, and active power, with a total of 334 bytes. The layout of electric meter in XML file is shown in Algorithm 1.

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxAlgorithm 1

Now, suppose that there are 100 electric meters under a collector in a monitoring system, and the polling period is one minute, generating an XML data packet every five minutes. Every collecting period has 73 bytes information on behalf of the sampling time; the head and the end of file have 118 bytes to contain public information (building ID, collector ID, etc.). Calculation of each packet size is as

Network transmission module is a critical component in the system. Here, we select W5100 as Ethernet driver chip, made in South Korea Wiznet company. W5100 supports TCP, UDP, ICMP, ARP, IGMP, and PPPOE. The internal block diagram is shown in Figure 6. Since the W5100 working frequency is up to 100MHz, there are some announcements in the circuit design.(1)The distance between the RJ45 network transformer and W5100 is as close as possible.(2)Two termination matched resistances will try to be close to the network of module transformer.(3)Placement of crystals is away from the transformer and circuit line of TX and RX, and the line as shorter as possible, avoiding high frequency disturbance.The W5100 chip includes fully hardwired TCP/IP stack, which could facilitate easy implementation of Internet connectivity; it has three different interfaces, called direct, indirect bus, and SPI to communicate with microcontroller. Therefore, driving W5100 becomes very easy and simple. In this research, we select SPI mode to drive W5100. The initialization of W5100 includes MAC address, IP address, Gateway address, communication port, and buffer size for send and receive registers. W5100 starts TCP client program to connect the remote server by Ethernet, after finishing the configuration. Communication packets between collector and server are shown in Table 2.

The data transmission potentially embraces and closes the TCP connection passively, in case of the slow-speed network at the peak hours. The collector will resend the data to server once the network recovers. In order to avoid losing the data packets collected in the period of network broken down the counter value 1 of sent packets is written into EEPROM, which could save value un changed even when the power is shut off, once the network accident happens. After a new connection is established, the microcontroller will make a comparison between value 1 of sent packets and value 2 of the should be sent packets for the time being. If value 1 is less than value 2, it begins to send historical packets, otherwise, sends current packets. After the server receives the historical packets successfully, value 1 increases by 1, controller stops sending historical packets and enters into normal routine when value 1 catches up with value 2. Figure 7 shows the flow chart of this program.

Time synchronization is a big problem that must be faced when data is collected from two or more points, as in this system. Paper [13] gives a way to utilize a GPS which receives signals from satellites to realize time synchronization. In this research, we take servers time as standard signal, which is a convenient and costless method. Precise calendar clock chip PCF8563 takes the real-time clock source. Microcontroller reads time information from PCF8563 at regular time and sends a heartbeat packet to server every minute. Microcontroller will adjust PCF8563 according to the feedback packet from the server if the time changes.

There are some configuration steps to do before the collector begins to work, as Figure 8 shows. (1)IP_set: 192.168.001.123, set IP address for the collector.(2)Port_set: 9090, set port for the collector.(3)Gateway_set: 192.168.001.001, set Gateway address for the collector.(4)server_IP_set: 124.093.228.145, set IP address of server.(5)server_Port_set: 9191, set port of server.(6)Building_ID_set: 210211A004, set building ID.(7)Gateway_ID_set: 210211A00401, set collector ID.local_set, is the end flag of configuration, of which, and should be offered by network administrator in monitored building, (4) and (5) are the fixed address of the data server, collector will send connection to this port when it starts to work, and (6) and (7) are the identity of target building and collector, respectively.

At present, the collector has been used in building energy consumption monitoring platform in Liaoning province and in the superintend platform of economical campus for Taiyuan University of Technology. There are 56 data collectors and 1580 electric meters in Liaoning project; on the other hand, there are 80 data collectors, 299 electric meters, and 241 water meters in Taiyuan project. Two years of continuous running show that the collector is reliable and stable. Figures 9 and 10 show an example of the installation of collector and building energy consumption data display on website, respectively. Figure 10 shows electric energy consumption of every day in October in a building of Dalian in China. From Figure 10, it is clear that the value on the weekends is lower than workdays, especially the Seven-day National Day holiday.

In this research, a low-cost, small-sized, embedded data acquisition and transmission system has been designed and implemented, which could be used in the area of monitoring systems. The hardware circuit and program algorithm are described in detail. The novelty of this design is summarized as follows.(1)Multiple points: the system adopts RS485 field bus to realize data collection form meters, one channel could handle 64 points at most, and then the gateway has two channels, which could deal with 128 meters at the same time.(2)Storable: the 2GB SD card supports the gateway for saving energy data up to 1 month, which is necessary to prevent data loss.(3)Scalable: the users do not need to change the structure of system, by just putting a meter in the end of RS485 bus if they want to add an acquisition point.The collector system started operation in October 2010 in Liaoning province and has been running steadily since then. At present, implementing energy-saving construction, developing green buildings, and achieving sustainable development have become a consensus in China, and more widely, the globe. The collector will have a good market prospects in the area of monitoring systems in future.

However, there are still some improvements that need to be further solved, such as adding a GPRS communication interface to solve the problem that cable network cannot reach in some buildings, and the power demand of the device is still in the process of being improved by putting the attached devices into sleep mode at times when they are not in use to conserve power.

This work was supported in part by the National Natural Science Foundation of China (Grants no. 51008042 and no. 51078053) and The Key Projects in the National Science & Technology Program in the Twelfth Five-Year Plan Period of China (Grant no. 2011BAJ03B12-3).

Copyright 2013 Liang Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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