separator furnace cement mill

cement seperator for cement grinding system

JD series seperator is high-efficiency combined raw material special powder sorting machine, which is the latest type of powder sorting equipment developed, combined with advanced powder classify technology to apply the plane eddy current theory to the cyclone type separator. Powder selection efficiency reaches 80-85%, fineness adjustment is convenient and flexible, and the performance is stable and reliable in cement plant.

The main features of the classifier are low energy consumption, large processing capacity, and flexible combination structure: it can be interchanged with the fluidized bed crushing machine to become a crushing classifier, and can be used with a rake mill, a ball mill, a roller mill, etc.

Combine and separate the ultrafine powder, which has the functions of low energy consumption and low pollution; it can be directly connected with dryers, conveyor belts, automatic packaging machines, etc., simplifying the production process and steps. Use of ultra-segmented grades that cannot be graded on common seperating equipment, especially for products that are strictly limited to the largest particles and require a narrow particle size distribution, such as heavy calcium, kaolin, talcum powder, barite powder, paint, Mica, graphite, auxin, aluminum hydroxide, etc. It can classify materials that require extremely strict grain size and meet the requirements of purity and grain shape. Typical materials: copier toner, laser printer powder, mobile phone battery powder, industrial battery powder, etc.

The classification chamber of the cyclone type separator is a cylindrical casing made of steel plate. In classification chamber, the small blades and the spreading disc are fixed together on the vertical axis. The motor is rotated by belt conveyor in the classification chamber. Strong centrifugal force is formed, and gas powder mixture entering the classification chamber is subjected to the centrifugal force.

The large or heavy particles are subjected to centrifugal force, so they are smashed to edge, no longer affected by the centrifugal force. it is collected, and then discharged as coarse powder through coarse powder tube; small or light material is less affected by centrifugal force, hovering inside the grading room, being carried to height by air flow, and moving to the next component along the pipeline It is graded or collected, and speed of the centrifugal force can be adjusted by the frequency converter to adjust speed, so as to separating the materials of the specified granularity.

In recent years, with the improvement of large-scale cloth bag dust collecting technology in China, the long bag dust collector technology used in rotary kiln tail gas treatment of cement rotary kiln with dry process method is increasing da...

Cyclone preheater is one of the core equipment in the new dry cement production process, which is responsible for many functions such as gas-solid dispersion, material heating, gas-solid separation, material transportation and some physical...

mills for cement and granulated blast-furnace slag gebr. pfeiffer

Modernization projects which call for the integration of grinding plants into limited areas within existing cement works are one of the topics Pfeiffer engineers deal with in their everyday work but they also handle projects for the implantation of grinding plants in completely new cement works or separate grinding terminals. No matter what type of project is concerned, the basic idea is to meet individual requirements. This is what we do by optimally adapting our products and processes to the prevailing conditions. Cements consisting of the components cement clinker and gypsum and maybe also additional extenders can be ground in common, but the materials (like clinker, granulated blast-furnace slag, limestone, sulfate carriers) can also be ground separately for being mixed after having been finely ground.

What we also do is to discharge undesired material like metallic components and prevent extenders which already have the fineness required, e.g. fly ash, from being reground unnecessarily. In this way our plants remain as compact as possible, thus reducing capital expenditure significantly.

Cement clinker is produced on the basis of a raw material mixture which is sintered in a kiln system at more than 1400C. As a result, compounds form the so-called clinker phases which are specific calcium silicates and calcium aluminates. These ensure the characteristic properties of the cement during hydraulic hardening. The so produced cement clinker is ground together with gypsum and/or anhydrite, thus forming the final product cement. Depending on the availability of the raw materials and market-specific requirements, further extenders are added to the common grinding process such as granulated blast-furnace slag. Mainly consisting of lime, silica acid, aluminum oxide, and magnesium oxide, blast-furnace slag is normally processed in granulation plants nowadays. By quenching the liquid slag, a glassy, granular product is obtained, the so-called granulated blast-furnace slag which is particularly suited for use as an extender in the production of high-quality cements.

The cement components are ground, dried, and classified in the Pfeiffer vertical roller mill. Moist feed materials can be fed to the mill separately from warm and dry feed materials. Product quality and product fineness can be adjusted within a wide range (up to 6000 cm2/g Blaine). The ground and dried products are separated from the process gas by a dust collection filter which is followed by a fan. Downstream of the fan, the gas volume flow is divided: part of it flows back to the mill, the remainder is evacuated through an exhaust gas chimney. The mill is equipped with an external material recirculation allowing the reduction of pressure loss in the mill. It can also be used for emptying the mill in case of maintenance. When grinding granulated blast-furnace slag, the iron particles contained in the slag can be discharged.

high efficiency dynamic separator - fives - pdf catalogs | technical documentation | brochure

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM Ph.Duhamel, A.Cordonnier and D.Lemaire FCB-Research Centre Cement and Mineral Industries CRCM > The use of classifiers on a powdery product with a given grain size allows the product to be divided into two parts: the first one made up of fine particles and the second one of coarser particles. However, depending on the quality of the classifier cut, the segregation of fine and coarse particles is more or less precise. One of the traditional classifier applications is found in grinding plants for which the ground product feeds the classifier which sends the coarse part to the grinding mill inlet. This enables regularity of the finished product to be obtained in accordance with specific criteria for fineness. The performance of a grinding plant depends of course on the grinding mill used with however a significant part depending on the classifiers capabilities. The principle of separation lies in the use of centrifugal force generated by way of a flow with vortex (cyclone and derivatives, etc.) for static classifiers or a rotating turbine for dynamic classifiers. The evolution in the technology of classifiers can be summarized briefly. The first classifiers of the static type separate the coarse particles from the fine particles by a cyclone effect although limited with regard to the admissible material load for inlet as well as separation efficiency. The next generation, called first generation dynamic classifiers, has a rotating plate to disperse particles with a small axial selection turbine. Air circulation is ensured by a centrifugal rotor which is placed in the upper part. The fine product is recovered by decantation in a double conic casing. By adding an external air circuit to suck in the gas output with the fine particles instead of the integrated rotor, we have come to second generation dynamic classifiers which are traditionally installed with peripheral cyclones. The third generation includes a radial turbine which ensures radial separation and no longer axial separation. Figure 1 : Static classifier Figure 2 : First generation > SRBII - fragmentation commitee Study day Dry screening and classification-28/3/1996 page 1 >

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM Figure 3 : Second generation Figure 4 :Third generation The TSV developed in 1990 by FCB, the technology of which will be explained in Part 2, is an advanced third generation classifier. The evolution of classifiers has followed a policy of improvement of their cutting ability, characterized by a better sorting of fine and coarse particles and a weaker by-pass. Furthermore, in Part 3, we will present the industrial results of the TSVs set up in different grinding plants (traditional or ventilated ball mills,...

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM air-swept TSV: top feeding TSV: The matter is placed in suspension in the fluid flow and it all feeds TSV from the bottom. This type of feed allows less space to be taken up and use in vertical grinding mills or air-swept ball mills. The matter arrives in bulk from the top of the classifier onto the roof of the turbine which disperses the material between the stator and rotor blades. As for the clean gas, feeds the TSV from the bottom. This configuration allows for a higher matter throughput. > REJECT Figure...

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM The flow of gas is rectified by way of the adjustable stator blades, which allows the tangential speed of the gas to be adapted to the turbine rotation speed so as to obtain only a radial speed of the fluid of the turbine. Therefore, a drag speed which is directly centripetal and opposing the centrifugal force is obtained which limits wear of the blades by the absence of particle impact on the latter. A closing which is adapted to the blades causes pressure loss which is favourable to the proper homogeneity of...

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM (1-Stg)/2 (St+Stg)/2 FirstGeneration First Efficiency Second Generation Second Third Third Generation St Efficiency % 00.10.2 0.30.40.50.60.7 0.80.91 110100 s Stg Mesh Mesh m Size M = ln(10)=2.3tg= Ms Mc Pt.M/4 t g s= Pts .M/4 SRBII - fragmentation commitee Study day Dry screening and classification-28/3/1996 page

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM The sizes which allow the slope of the sharing curve to be assessed are defined in reduced coordinates: - Imperfection I > = ddd7525250. - Acuity > = > dd2575 - The slope of the straight line obtained through linearisation of the cutting area of the sharing curve in reduced coordinates expressed in a diagram semi-Log : > = Atan(-0.5/log(Acuity)) The evolution of the classifiers has followed a rationale of decreasing imperfection, global by-pass and the presence of outsized coarse particles in the finished...

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM Feed t/h 220 140 Throughput gas m > 3 /h 69000 69000 Material load kg/m > 3 3.2 2.0 Recycled LoadL 7.1 4.6 R8m % 70.4 70 Dcut m 33 33 Reduced imperfection 0.26 0.26 Global by-pass % 16 2 Pressure loss daPa 160 110 Turbine power kW 14 9 > The following table provides the average values of specific energy depending on the type of grinding plant. > Material Coal Raw materials from cement works Cement (~3000 Blaine and dcut=35 m Cement (~4000 Blaine and dcut=22 m) ) Turbine kWh/t 0.15 0.15 0.25 1.1 Ventilation...

TSV : The high-efficiency dynamic classifier and its latest developments FCB-CRCM It has been observed that in plants equipped with the TSV, the output obtained is practically always very close to 1 or even considerably higher than 1 for criteria in R90 or R100 thanks to the very small amount of imperfections obtained. For cement grinding plants, the average values correspond to a great number of industrial reports, part of which have already been published [1]. These ranges are quite large and vary from one designer to another. The following table indicates the substitution rates for...

cement mills and raw mills for small to medium throughput rates

For the preparation of cement raw material, cement, and granulated blast-furnace slag with small to medium output rates, the MVR mill with conventional drive is the right choice. This mill type is by the way the core piece of our modular ready2grind system. High plant availability and optimized maintenance concepts are the features that make sure the mill meets the ever rising requirements of the industry. In combination with the conventional drive, the MVR mill ensures small to medium output rates, reliably and on the long term.

Up to six grinding rollers may be swung out separately, using only one hydraulic unit for maintenance and operation. This system is actively redundant meaning that operation continues while two or several opposite grinding rollers are taken out of the system.

Thanks to the geometry of the grinding rollers in combination with their specific suspension, there is always a parallel grinding gap, ensuring a homogeneous compaction of the material to be ground. Moreover, due to the symmetric shape of the grinding roller tires, these can be turned when worn.

Thanks to low specific wear rates, high-quality wear materials and sophisticated service concepts, maintenance times of the MVR mill are reduced to minimum which is additionally supported by the active redundancy of the grinding rollers.

High drying capacity, short dwell time of the material to be ground, and remote control of grinding pressure and classifier rotor speed ensure a fully automatic operation of the MVR mill even with varying raw material characteristics.

Up to six stationary grinding rollers roll on a rotating grinding table. The material is drawn in between the rollers and grinding table and ground by pressure and shear. The required pressure forces are produced by a lever system comprising, among others, a roller arm, along with a hydropneumatic tension system. After being rolled over by the rollers, the material is conveyed to a stationary nozzle ring due to the rotation of the grinding table. Gases (air or hot gas) flow through this nozzle ring, take up the ground and dried material and convey it to the classifier where it is separated by the rotating wheel (rotor) into grits and fines. The grits fall back into the grinding zone whereas the fines leave the classifier with the gas flow for being separated in cyclones or a filter.

Up to six stationary grinding rollers roll on a rotating grinding table. The material is drawn in between the rollers and grinding table and ground by pressure and shear. The required pressure forces are produced by a lever system comprising, among others, a roller arm, along with a hydropneumatic tension system. After being rolled over by the rollers, the material is conveyed to a stationary nozzle ring due to the rotation of the grinding table. Gases (air or hot gas) flow through this nozzle ring, take up the ground and dried material and convey it to the classifier where it is separated by the rotating wheel (rotor) into grits and fines. The grits fall back into the grinding zone whereas the fines leave the classifier with the gas flow for being separated in cyclones or a filter.

Depending on the abrasiveness of the material to be ground and areas to be protected, different wear materials are used on our vertical roller mills. Alloy cast iron as per DIN 1695, hardfaced cast iron or composite materials with high-chromium inserts in ductile base materials: the grinding elements designed by Pfeiffer are made of high-quality materials ensuring a long lifetime. The housings and other mill components, too, are protected against wear with highly wear-resistant steel plates or hardfaced composite plates. Components which are specifically exposed to wear like gas outlet ducts have additional ceramic liners. All this is for optimum protection and short maintenance shutdown.

The highest wear occurs on the wear parts of the grinding elements as is the case with any type of vertical mill. Therefore, ease of replacement and regeneration is a major feature of the mill. The MVR mill has a modern hydraulic system used in operation and for maintenance alike. With this new type of roller suspension, the rollers can be swung out of the mill in a controlled way for ease of replacing the one-part grinding roller tires. The segmented wear parts of the grinding table are replaced, using a lifting device and the maintenance drive. Moreover, the rollers can be swung out separately. Hence grinding operation can be continued while taking out two opposite rollers at a time. The parts concerned can be regenerated both inside the mill and outside. Forget about downtime and maintenance problems! With active redundancy and easy maintenance you are up to date!

cement separator cement mill separator | cyclone air separator in cement plant

Cement separator, also called cement mill separator, is the necessary equipment in the powder classifying system of cement, chemical, mineral, and other industries. It can respectively collect the qualified fine powder and coarse powder from the airflow after they are ground by the grinding equipment to a certain extent. The utilization of cement separator prevents the fine powder from sticking to the grinding media and produces the buffering effect, so as to adjust the size composition of finished products and improve the grinding efficiency.

As a kind of cement equipment, cement separator is mainly used in the coal mill grinding system, raw mill grinding system, and cement mill grinding system of the cement production line. In order to improve the efficiency of these systems and reduce the energy consumption of products, current cement plants generally adopt the closed-circuitgrindingsystem. As an important part, the performance and quality of cement separator will directly affect the grinding system.

There are many types of cement separators, different types suitable for different materials. Besides, different models should also be selected according to the customers requirements for material fineness.

Cyclone air separator is one kind of cement separators. AGICO Cement, as a professional cement equipment supplier in China, offers different models of quality cyclone air separators for any type and size of cement plants, such as JD series cyclone air separator. It is the latest powder separator developed by our companys technicians with the plane eddy theory. Its powder selection efficiency can reach 80-85%. Besides, we also provide other types of cement separators, such as TZX series cement separator, TS series cement separator, and MX series cement separator.

The circulating air of the cement cyclone separator is generated by the air blower. During the powder classifying process, the air is sent by the air blower from the center of the separator in a tangential direction and then spirals up to the classifying chamber. After being ground in the mill, materials are fed through the top feeding port of cyclone air separator and falls onto a rotating spreading plate. Due to the action of inertial centrifugal force, the material is evenly scattered around the spreading plate and meets with the updraft. The finer particles rise to the position of blades with the airflow, among which some of the larger particles sink along the inner cone and enter the coarse powder duct. The smaller particles enter the cyclone with the updraft after passing through the blades and then collected by the centrifugal force. After being separated by the cyclone, the airflow comes out from the air duct and enters the air blower again, thus forming a closed circulation air.

AGICO is a professional cement equipment manufacturer. Cement separator is one of our hot sales products. Compared with the traditional cement separator, the separator produced by AGICO has the following outstanding advantages:

AGICO Group is an integrative enterprise group. It is a Chinese company that specialized in manufacturing and exporting cement plants and cement equipment, providing the turnkey project from project design, equipment installation and equipment commissioning to equipment maintenance.

cement-grinding-plant

Description The cement grinding station with an annual output of 1 million tons adopts the technology of separately grinding clinker and slag, among which the clinker grinding adopts the combined grinding process composed of two 4.2m 13m cement mills. The production process of the grinding station is stable, achieving the goal of high quality, high yield and low consumption.

This 500,000t/y cement grinding station is constructed in Russia. Jiangsu Pengfei Groupundertakes the construction of this cement grinding line from Star River Industrial Development Co., Ltd. which is in the Economic Cooperation Zone of Heihe City in Heilongjiang Province. Pengfei is responsible for the process design of the whole project.

This 2,000,000 t/y cement grinding station or cement grinding machine could serve concrete mixing plants and concrete pipe pile factories. It could also be used in industrial construction project and civil construction project. Jiangsu Pengfei Group provides complete project plan and process equipment. It is an independent and complete cement production line including cement grinding, bulk packaging, and packaging and delivering.

Pengfei Group provides the complete project plan of this 1000000 tons/year slag powder production line. We also manufacture process equipment of this production line. We adopt a close circuit grinding system consist of 1400450 roller press, 3.813m ball mill, and 0-SEPA3000 separator. We set six1018m powder storage silos for this slag powder processing equipment. The total storage capacity is 6000 tons. We have four 220 m3/min oil-free lubricating air compressors to provide compressed air. Compressed air is dried and purified by dryer and water oil separator.

cement equipment sale - cyclone preheater|rotary kiln|ball mill|crushers

Scope of application: Hammer crusher is suitable for crushing minerals of various medium and hard brittle materials. The crushed material has a compressive strength of not more than 150 MPa and a humidity of not more than 15%....

Applications: Widely used in building materials, ore crushing, and medium and fine materials in railways, highways, energy, transportation, energy, cement, mining, chemical and other industries. Material: Suitable for hard rock brittle non-...

Applications: Widely used in: industrial sectors such as building materials, chemicals, metallurgy, electric power, coal, mining, etc. Material: It is suitable for crushing cement clinker, granular blast furnace slag, limestone, sandstone,...

Cone crusher is a newly developed hydraulic crusher with high power, large crushing ratio and high productivity.The machine was developed on the basis of digesting and absorbing various types of cone crushers with international advanced lev...

The cement rotary kiln is a cylindrical body with a certain inclination, and the inclination is 3 to 3.5%. The rotation of the kiln is used to promote the stirring of the material in the rotary kiln, and the materials are mixed and contacted for react...

Introduction: The cyclone preheater is the core equipment of the new dry process cement production technology. It uses the suspension preheating method to preheat and partially decompose the raw material to shorten the length of the rotary...

Applications: Mainly used in grinding operations in mining, cement, refractory, chemical and other industries. Materials: Mine ball mills are divided into dry and wet, dry type for refractory materials, cement, fertilizer, glass industry; w...

The vertical mill is divided into coal vertical mill, slag vertical mill and cement vertical mill according to the application. Cement vertical mill is pressurized by hydraulic system, and the pressure acts on the material between the grinding roller ...

Scope of application: In the cement industry production, in order to improve the efficiency of the grinding system and reduce the energy consumption of the product, a circulating grinding system is now widely used. As an important part of t...

The Rotary Cooler produced by our company is often used to cool the kiln clinker of the 500-2000t/d production line because of its simple structure, high thermal efficiency, low maintenance cost, low equipment investment and high operating efficiency....

n a cement plant, grate cooler is a basic machine in the calcining cement system, its main function is to make the ripe cement material to next system. At the same time, the grate cooler could offer rotary kiln and decomposing furnace hot air flow...

Applications: Widely used in metallurgy, mining, power, building materials, machinery manufacturing, grain processing, chemical, boiler and other industries Case: The high-reliability design of the air box pulse dust collector produced by o...

Applications: Widely used in non-ferrous metals, metallurgy, electric power, building materials, coal, petroleum and chemical industries. Materials: Used in coal-fired factories and power stations to collect coal ash and dust from flue gas....

Belt conveyors are divided into TD belt conveyors and DTII belt conveyors. Belt conveyors have been widely used as continuous transportation machinery in docks, coal mines, metallurgy, grain, paper and other industries. ...

The bucket elevator conveyor has the advantages of large conveying capacity, high lifting height, stable and reliable operation and long service life. It is widely used in metallurgy, mining, coal, chemical, light industry, building materials, electri...

The cement disc feeder is a widely used continuous volumetric feeding device. It is mainly used for the feeding equipment of powder ore below 20mm. The machine utilizes the fluidity of the material through the rotating disc and the adjustable drum. ...

Application: Buried scraper conveyor for metallurgy, machinery, light industry, food, transportation and other departments Materials: Dust-like materials such as dust, small particles and blocks, and various food crops Case: The buried scra...

In recent years, with the improvement of large-scale cloth bag dust collecting technology in China, the long bag dust collector technology used in rotary kiln tail gas treatment of cement rotary kiln with dry process method is increasing da...

Cyclone preheater is one of the core equipment in the new dry cement production process, which is responsible for many functions such as gas-solid dispersion, material heating, gas-solid separation, material transportation and some physical...

sulphate resisting cement manufacturing - sulphate resistant cement plant

Sulphate resisting cement (SRC cement) is a type of hydraulic binding material with resistance to sulfate ion. It is manufactured by fine grinding of Portland cement clinker, an appropriate amount of gypsum, and blast furnace slag. Compared with other Portland cement, it features high sulfate resistance, strong frost resistance, and low hydration heat.

Sulphate resisting cement has low tricalcium aluminate and tetracalcium aluminoferrite content and high tricalcium silicate content. This structure reduces the formation of sulfate salt thus improves the performance of concrete stones for sulfate attack and enhance their durability in most aggressive environments. It is suitable for seaport engineering, water conservancy engineering, and underground construction, which are easily affected by sulfate corrosion, freeze-thaw and, dry-wet alternation.

Moderate sulphate resisting cement (code P-MSR) can resist the corrosion ofsulfate ions with a medium concentration. The content of tricalcium silicate does not exceed 55.0%, and the tricalcium aluminate is no more than 5.0%.

High sulphate resisting cement (code P-HSR) can resist the corrosion ofsulfate ions with a high concentration. The content of tricalcium silicate and tricalcium aluminate is less than 50% and 3%, respectively.

Concrete prepared from sulfate resistant cement has a strong resistance to pure sulfate whose concentration of sulphate ion is less than 2500mg/L. It is ideal for concrete engineering in contact with acidic soil, groundwater, seawater, etc. The use of SRC cement is recommended for the following applications:

Raw materials needed in the production of sulfate resistant cement are basically the same as ordinary Portland cement, mainly including calcareous materials, clayey materials, and ferriferouscorrective materials. However, their mineral composition is very different from the ordinary Portland cement.

Limestone, clay, and other raw materials should be first crushed into raw mill feed size by cement crushers. After that, they are stored in a pre-homogenization storage yard and then be mixed in proportion and fed to cement raw mill for subsequent fine grinding. The fine ground raw meal will be stored in storage bins waiting for calcination.

In the calcination process, cement raw meals will first enter the preheater and precalciner to complete the preheating and partial carbonate decomposition. Then they are sent into the cement kiln for formal calcination until the clinker is formed. After that, the hot clinker will be cooled to a normal temperature in a cement cooler placed behind the kiln.

Cement clinker is usually mixed with gypsum and other admixtures for a specific property before sent into the cement mill. In a cement mill, they are finely ground until reach the fineness required for cement products. After grinding, cement powder is stored in cement silos and then packed in bags by cement packing machines.

AGICO Group is an integrative enterprise group. It is a Chinese company that specialized in manufacturing and exporting cement plants and cement equipment, providing the turnkey project from project design, equipment installation and equipment commissioning to equipment maintenance.

gas cleaning plant in steel industry & blast furnace - rieco

Gas Cleaning Plants are used for cleaning the outlet gases of Mini Blast Furnace in the steel industries. These gases are hazardous in nature and contain high calorific value, hence cannot be let out in the atmosphere.

Liquid iron production process in the blast furnace (BF) generates gas at the furnace top which is an important by-product of the BF process. It contains certain calorific value. The top gas of the Blast Furnace is at the certain temperature and pressure exiting at the Blast Furnace top and usually contaminated with dust and water particles. This gas is also known as raw Blast Furnace gas or contaminated Blast Furnace gas. The composition and quantity of this top gas depends on the nature of the technological process in the blast furnace and the type and quality of the raw materials used for iron production in the blast furnace. In order to further use the contaminated Blast Furnace gas, it is necessary to clean it by using certain cleaning process systems which reduces outlet dust content of the solid particles and reduces the top pressure for further use in downstream process. Our Gas Cleaning Plant provides both the performance parameters i.e. reducing the dust content to less than 5 mg/Nm3 and killing the top pressure suitable for downstream process. The top gas contains carbon monoxide (CO) and is known as blast furnace gas after its cleaning. It is used as fuel gas for heating blast air in the hot blast stoves as well as supplemental fuel in the steel plant. For the BF gas to be used as fuel gas, it is necessary that the raw BF gas is cleaned with Gas Cleaning Plant and cooled to reduce gas volumes with reduction in moisture content.

The dust-laden blast furnace gases after dust catcher are cleaned in the Gas cleaning plant. The unit is of latest design consisting of two-stage High Energy ventury Scrubbing system. The first stage ventury provides pre-cleaning of BF gases. The second stage ventury provides final cleaning of the BF gases. The system is highly efficient, and yields cleaned BF Gas. Coarse dust particles are removed in the scrubber removing 90 95% of the dust from the gases. Water is supplied to the scrubber through recirculation (clean) water pumps from Clarifier plant. Dust laden water is discharged through water sealing system to the launder for treatment and recycling.

The precleaned gases leaving after first stage ventury passes into the second stage of gas cleaning plant comprising of a high energy ventury scrubber of adjustable flaps. In the venturi throat, the gas moves against the water spray for separation of fine dust particles. The venturi throat is equipped with mechanism to adjust the throat area, which allows optimum adaptation to the gas volume generated in the blast furnace. Differential pressure across the GCP controls second stage venturi throat opening automatically. The gas leaving the second stage venturi enters the Centrifugal separator where the finest water droplets are flung against the scrubber shell and run down into the sump, and gas gets free from water particles leaving the gas cleaning plant for distribution through pipeline network to various downstream applications. In the separator, we provide highly efficient mist eliminator specially designed to reduce the outlet moisture content to less than 5%.

cement grinding plant_cement production line,cement machine,rotary kiln-jiangsu pengfei group co.,ltd

The cement grinding plant mainly used in crushing and preheating of raw materials, and grinding and packaging of cement. And it is mainly applied to deal with industrial solid wastes like slag, coal ash, coal gangues, and so on. Therefore, it contributes great to the environment protection industry.

Our cement grinding plant has the features of simple technological process, easy operation, low investment, electricity saving, environmental friendliness, etc. And various admixtures can also be used in this plant.

Here in Jiangsu Pengfei Group Co., Ltd, one-stop service is available, including engineering design, construction, related equipment, assembly and debugging, technical service, and general contracting service. Besides, we have successfully finished many relevant engineering projects, like the construction of cement grinding plant with an annual output of 1-1.2 million tons, the building of cement grinding plant with 0.5-0.6 million tons' annual output, the construction of 0.2-0.3 million tons' annual output cement plant, and the building of plant with 0.1 million tons' annual output.

1,000,000Tons/Year Cement Grinding Plant: In this 1,000,000t/y cement grinding plant, clinker and slag are ground separately. PFG120-50 rolling machine and 3.2m13m cement mill are used in clinker ginding. 3.2m13m ginding machine and high-efficiency powder separator are used in slag grinding.

Process Flow Design of 1,000,000Tons/Year Cement Grinding Plant: 1. Designing of Clinker Grinding Production Line After gypsum, clinker and limestone are measured by the belt weigher, they will be mixed together in accordance with particular proportions, and then sent to the stable weighing warehouse. During this process, magnetic metals are removed by the iron remover from these materials. Then mixed materials will be sent into the rolling machine to be crushed. After crushed, they will be sent to the powder separator, in which coarse powder will be sent back to the griding mill while the fine one will be sent to the elevator for finished products. Finally, they will be sent to finished product storage. Meanwhile, dusty gas from the grinding mill will be purified by the environmental protection equipment before discharged into the atmosphere.

2. Design of Slag Grinding Production Line Gypsum, dry slag and pulverized coal are measured by the belt weigher before mixed together according to particular proportions. Mixed materials will be sent to the mill for grinding, and during this process, iron remover is employed to remove magnetic metals in these materials. After grinded, fine powder will be sent to high-efficeint powder separator, while coarse powder will be sent back to the grinding mill. Finished cement will be collected by the air tank pulse bag filter, while the fine powder will be sent to the storage for finished products through an elevator. Dusty gases from the mill will be used as the first gas to enter into the powder concentrator, which is followed by fresh air. Finally, dusty gas will be purified by the air tank pulse bag filter before discharged into the atmosphere.

3. Design of Mixing Fine Slag and Powder Clinker Besides the fineness of powder clinker and fine slag in the grinding production line, accurate measuring and even mixing also need to be paid much attention to. That's why we choose to use the screw measurer as the measuring device and the air slide as mixing device as well as conveying device.