cement clinker processing machinery sale

nelson machinery international - sellers of second-hand cement plant equipment. also bulk material handling equipment and power plants

Here's a unique opportunity -- this brand new Cement Plant has been mainly installed but never commissioned. The project was cancelled due to market factors. Featuring top quality EUROPEAN equipment, the plant's clinker capacity is 750,000 tons per year. Up to 1 million tons per year of a mixed cement could be produced... Find out more

This mill is considered to be in excellent condition. It has been used for 6 years only, in service grinding both Cement Raw Materials and Granulated Blast Furnace Slag.... Find out more

We can offer a second-hand VAN AALST Dock Mobile Shipunloader. This is a pneumatic type unloader suitable for unloading cement and other powdered materials. Nominal capacity is 325 tons per hour, and it can unload ships up to about 27000 dwt size, or up to 40000 dwt with help of a bobcat in the hold. Also available is a mobile truckloading station... Find out more

Quadrant type shiploader for sale. Capable of loading ships at 10000 tons per hour (yes, that's ten thousand). In case it matches the needs of your port project, you'll save big on delivery time and capital cost... Find out more

New Surplus Loesche Vertical Roller Mill, specifically designed for grinding PETCOKE (could also be used for coal). Capacity will depend on the spec of the petcoke, but will be in the range of 25-35 tons per hour. This mill has never been installed... Find out more

This 11' X 310' Fuller-FLS Rotary Kiln has already been dismantled and is ready to ship. Formerly used for re-causticizing lime it has 4 support stations and is equipped with satellite coolers. It was new in 1998 and has been used for less than 1 year total... Find out more

Nelson Machinery International Ltd. specializes in the sale of second-hand Cement Plant Equipment and complete Cement Plants. As well as selling previously used equipment, NMI frequently offers "new surplus" items that have never been put into service due to a cancelled project.

clinker production - clinker manufacturing | cement manufacturing machines

What is the cement clinker? As we know, the cement production process is mainly divided into raw material preparation, clinker calcination, and cement grinding. Clinkeris the material produced in the calcination stage and is usually used as the binder in many cement products. In other words, it is a semi-finished cement product by preparing limestone, clay, iron raw materials, etc., in proper proportion, calcining them to partial or full melting, and finally cooling to normal temperature.

In the cement industry, the main chemical components of the most commonly used Portland cement clinker are calcium oxide, silica and a small amount of alumina and iron oxide. Its particles are usually of diameter 3-25 mm and dark grey. It can be stored for long periods in a dry condition without reduction of quality, thus it is traded internationally and used by cement manufacturerswhenraw materialsare found to be scarce.

The production of cement can be divided into dry process and wet process, while because of the high output, low heat consumption and steady running, the dry process has become the most commonly used manufacturing method in cement plant, mainly includes three models: dry process rotary kiln production, suspension preheating kiln production, and pre-decomposition kiln production. Of these models, the clinker calcination can be divided into preheating and pre-calcining, clinker sintering, and clinker cooling three stages.

In the cement production line, we usually set a preheater and a precalciner before the cement kiln. After raw meal enters the preheater, they will be heated to about 750 by the hot air blown from the kiln, and then enter the precalciner to mix with the fuel injected from outside so that the exothermic process of fuel combustion and the endothermic process of carbonate decomposition in the raw meal are carried out rapidly in a suspended state, so the decomposition rate of raw meal before entering the kiln can reach 90%. This kind of rotary kiln with preheater and precalciner is called a pre-decomposition kiln. If only preheater is set, we call it suspension preheating kiln.

The production process of preheating and pre-calcining makes the thermal layout of the calcination system more reasonable, improves the production efficiency and product quality, reduces the energy consumption, meanwhile, it also has more superior performance in many aspects such as environmental protection.

Cyclone preheater, also called suspension preheater, is the essential cement equipment in the preheating and pre-calcining process. Different from the stacked heat transfer mode in the rotary kiln, the material in preheater is in full contact with the hot air under a suspended state. Due to the large contact area, its heat transfer speed is fast and the heat exchange efficiency is high.

The five-stage cyclone preheater produced by AGICO merges preheater and precalciner into a single. It has a small space occupation and adopts the automatic control system to make the production process more convenient. For different areas and capacity needs, AGICO provides a custom-designed solution to your cement plant.

Clinker sintering is a crucial link in clinker calcination, which mainly occurs in the cement kiln. Inside the kiln, raw meals are heated by rising temperature and generate a series of physical and chemical reactions. When the temperature reaches its peak, the clinker will be produced by rapid cooling. These reactions can be expressed as follow

Cement kiln is the main equipment for clinker sintering. From structure, it can be divided into rotary cement kiln and shaft kiln, while, from the working principle, it can be divided into the dry method and wet method kiln.

AGICO offers different types of cement kilns from 10-5000t/d with steady running, high efficiency and large output. We adopt the most advanced calcination technology so that the production investment of clinker is small and the income is high.

Clinker cooling is the final step in clinker production. This process aims to recycle heat, preheat the secondary air, and improve the quality and grindability of the clinker. Besides, the rapid cooling of the clinker in this process is convenient for cement storage and transportation.

Clinker cooler is also called cement cooler, which set behind the cement kiln for clinker cooling. In cement plants, we usually adopt the rotary cooler and grate cooler for daily production. Inside the cooler, hot clinker will direct contact with the cooled air blown from the air blower to realize fast cooling.

AGICO provides different models of rotary coolers and grate coolers. They are all made of high-strength and high-temperature resistant alloy cast steel and has the advantages of high efficiency and long service life. For your different capacity needs and layout design, we can customize the equipment most suitable for you.

AGICO Cement is a cement plant equipment manufacturer committed to development and innovation. We can provide the production, transportation, installation and many other services of the equipment needed in the cement clinker production process. In addition, we also provide the construction of large cement plants. We are a trustworthy partner!

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 equipment in cement plant | agico cement plant manufacturers

AGICO GROUP is located in Henan, China. Our company was founded in 1997, with the registered capital of 81.34 million RMB. It covers an area of 660000m2 and has a construction area of 30000 m2. In 2004, we passed the ISO9001 certification and enjoyed the self-management right of import and export. Meanwhile, as a member of the enterprise technology center, we have complete means of design, test, detection, and measurement. In addition, we own welding, mechanical processing, assembly, and other modern processing equipment and the complete manufacturing system.

Cement is the most widely used material in the construction industry. It is a very crucial ingredient because only cement is capable to increase the viscosity of concrete and make buildings have a sturdy structure. In cement plants, cement manufacturing needs to go through the following six processes:

In the process of cement manufacturing, all the raw materials need to be first broken into proper size by a cement crusher. Then they will be stored in the pre-homogenized storage yard. After they are mixed evenly according to a certain proportion and stored in the silo, they will be sent into the cement raw mill for further grinding. Before raw meals finish the calcination in the cement kiln, their partial decomposition in the preheater is an indispensable stage.This process improves production efficiency and reduces heat consumption. After that, the formal calcination will take place in the cement kiln. Since the temperature of the clinker is very high, we usually use a cement cooler to cool it down to the normal temperature so that the clinker can be further processed. However, the calcined clinker particle has an irregular shape, so we need to adopt the cement mill to make clinker reach a qualified fineness of cement products. After all the above processes are completed, the cement will be packaged and sent to its destination.

AGICO is a leading cement equipment manufacturer in China, supporting high-quality cement kilns, cement mills, cement crushers, industrial dust collectors, conveying equipment and other machines that needed in the cement plant. We offer the customization, installation, commissioning and operation training service of our cement equipment. AGICO is your trustworthy partner!

Cement mill is the equipment used in the raw material grinding and clinker grinding process. Its main function is to grind raw meal and cement clinker into an appropriate size to meet the qualified fineness.

AGICO provides EPC turnkey projects and various professional equipment for cement production line, stone crushing plant, cement grinding unit, fly ash processing plant, and VSK cement plant. In addition, we also offer the cement plant upgrade and retrofit service according to customers specific needs.

The stone crushing plant is mainly composed of the primary crusher, secondary crusher, belt conveyor, etc. AGICO offers plant designs that suitable for different sites and tailored to customers budgets.

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.

new surplus cement plant for sale by nelson machinery international

Here's a unique opportunity to acquire this state-of-the-art brand new cement plant. We are offering the equipment for dismantling and relocation by the buyer (local contractors are available). All the engineering for the original project will be included, and engineering assistance is available for adapting the plant to the new buyer's project.

Nelson Machinery International Ltd. specializes in the sale of second-hand Cement Plant Equipment and complete Cement Plants. As well as selling previously used equipment, NMI frequently offers "new surplus" items that have never been put into service due to a cancelled project.

cement plant,cement production line,cement plant for sale,cement manufacturing plant - hxjq

Cement plant is also called cement manufacturing plant, which is a series of cement production equipment. It is mainly made up of crushing and pre homogenization, raw material preparation, homogenization of raw materials, preheating and decomposition, cement clinker burning, cement grinding as well as packaging process, which is the more complicated production process. The main equipment of cement production line includes cement rotary kiln and cyclone pre-heater, grate cooler, etc.

(2)Pre-homogenization of raw materials: pre-homogenization technology is to use scientific material piling technology to realize the preliminary homogenizing of raw materials and to make the materials stockyard have the combined function of storage and homogenizing during the process of storing and feeding of raw materials.

During the process of the cement production, the cement making machine needs 3 tons of grinding materials at least (including all kinds of raw materials, fuel, clinker, mixture, plaster) to produce 1 tons of silicate.

During the new cement production process, the stability of raw material component is in the premise of firing system. The homogenization system plays an important role in the stability of putting the raw material into the pit at the last line.

The preheating and parts of decomposition of raw materials are completed by the pre-heater to replace part of the rotary kiln function, shorten the length of the kiln and make the gas with accumulation state in the kiln conduct the heat transfer process. Therefore, it can be moved to the inner suspension pre-heater condition, which can mix the gas in the kiln completely, add the touching area, quicken the heat transfer and improve the efficiency of heat exchange to increase the productivity ratio and reduce the energy consumption.

After the preheating and decomposition in the pre-heater of the raw materials, the next process is to fire the clinker in the rotary kiln. The carbonate in the rotary kiln is further decomposed rapidly and it will cause a series of solid phase reaction, which will generate cement clinker minerals. With the increase of material temperature, the mineral will become liquid and they will be dissolved in the liquid phase and reaction to generate a large amount of clinker. After burning, the temperature of clinker begins to decrease. Finally the cement clinker cooling machine will convey the high temperature clinker discharged by rotary kiln to the withstand temperature of downstream transport, storage and cement mill. At the same time, the sensible heat and recovery of high temperature clinker will improve the heat efficiency and the quality of clinker.

Cement grinding is the last and the most power-consuming process. Its main function is to grind cement clinker (and gelling agent, performance adjustment material, etc.) to appropriate particle size (represented by fineness, specific surface area) to form certain granular level, increase the water area and accelerate the hydration rate of cement paste, so as to meet the condensation and hardening requirements.

Hongxing Machinery has cement plant for sale, which has high working efficiency, reliable performance and reasonable price. If you want to know more information about cement production, please contact our online customer service or send emails to [email protected],and we will answer you as soon as possible. Thank you!

cement rotay kiln_henan hongji mine machinery co., ltd

Our cement plant for sale is a new type of dry process cement clinker production plant. The 3.5X54m rotary kiln has been used as rotary kiln, whose end is fitted with five-stage cyclone preheater and decomposition furnace. Its process flow mainly consists of limestone crushing, raw meal grinding, raw meal homogenizing and storing, calcining, and cement grinding.

Our cement plant for sale is a new type of dry process cement clinker production plant. The 3.5X54m rotary kiln has been used as rotary kiln, whose end is fitted with five-stage cyclone preheater and decomposition furnace.

We, Henan Hongji Mine Machinery Co., Ltd. can provide a wide variety of cement processing plant, including 4000t/d, 3000t/d, 2500t/d, 1500t/d and 600t/d cement production line. And one-stop service is also available, including designing, construction, relative equipment providing, installing and debugging, technical serving, and overall contracting.

cement kiln is our hot sales and the rotary cement kiln's price is very reasonable

Cement kiln, just as its name implies, it is known for its capability to deal with cement. It is a device for bedding for dry and wet cement clinker production. Cement kiln can also be widely applied in other sectors like metallurgy, chemical engineering, building refractory, environmental protection, etc. Cement kiln is composed of the barrel, supporting device, a support device with baffle wheels, gearing, active kiln head hood, kiln end sealing device, coal jet pipe device and so on.

Cement rotary kiln turns into micro running under high temperature. The maintain of attachment devices and the level of the thermal system is closely related to cement kilns safety and efficiency. The key points of caring and maintaining gearing are to checking lubrication, running status, dynamic detection and meshing precision between large and small gears. Installation accuracy of supporting device keep rotary kiln safe and smooth. Then, pay attention to the rational distribution of stay wheels bearing weight, layout form of riding wheels, hydraulic gears upstream and downriver pressure and time. The quality of stealing device directly affects the rotary kilns quality of the thermal system and operating cost. In one word, keeping routine maintenance and data analysis benefits the management of devices.

Cement kiln is an important device for the dry and wet cement production line. Cement kiln is mainly formed by barrel, gearing, roller support device, stop wheel support device, kiln lining, kiln tail seal, kiln head hood and fuel plant.

Cement kilns material of internal heating-type directly contacts with flame and smoke. So, the inside wall of kiln is laid by refractory bricks. Head and tail cover lining is made from wear-resisting, casting material. There is a flexible seal between the head and tail-cover and kiln, which prevents a kiln from raising dust and leaking.

Cement kilns material of external heating-type doesnt directly contact with flame and smoke. Heat source exists between heating furnace and kiln, heating material conducting heat through heat resistant steel cylinder wall. The lining of heating furnace is made from refractory fiber, which helps cement kilns energy-saving and cost-reducing.

Cement kiln puts raw material into kiln tail, raw material turning itself into cement clinker after a series of physical and chemical reaction because of kilns tilt placement and its rotary capability. Put cement clinker into the cooling machine after it ejected from kiln head hood. Dry rotary kiln makes the raw material into raw powder, whose water content is less than one percent. The advantage is that it saves more energy than a wet rotary kiln. The disadvantage is that it may happen that ingredient in mixed material is uneven.

Cement kiln turning raw into a slurry, whose water content is from 32 percent to 40 percent. The advantage of a wet rotary kiln is that the good liquidity of slurry makes better evenness leading to a higher quality of clinker.

AGICO is a comprehensive engineering and technology company that integrates cement engineering equipment and general contracting, cement rotary kiln, cement plant design, cement complete equipment export, supply of cement equipment parts, and maintenance of production line. Our technical team mainly comes from domestic first-class design institutes, cement companies, and large professional engineering companies, with very mature cement plant construction, renovation, and expansion experience. There are more than 20 cement plant kiln projects that the company has completed and are under construction, which has been fully affirmed and recognized by the owners.

In terms of supply capacity, we have formed a close strategic partnership with a first-class design institute, which can meet the demand of 10,000 TPD rotary kiln in cement plant and complete sets of cement production line equipment. In addition, we can also provide cement mechanical shaft kilns, dry and wet process cement rotary kilns, and other different types of rotary kilns for cement plants. At present, the companys main cement equipment includes jaw crusher, preheater, cement rotary kiln, grate cooler, cement ball mill, powder separator, dust collector, and supporting electrical control system and related equipment accessories.

It is reported that the Uzbek customer before mainly engaged in oil-related products, due to development needs, began to invest in infrastructure construction. In order to expand the market share and increase profits, it was decided to build a cement plant and purchase a rotary kiln for cement manufacture. Since the project was put into operation in 2019, the entire rotary kiln cement plant has been running well, with a high automation level, convenient equipment operation, and extremely low failure rate.

1. Be familiar with a blueprint of the cement kiln. Comprehend cement rotary kilns concrete parameters, sub-units exact location and basic lines benchmark through the blueprint. Grasp the information about the transport route, working site, tool room, and temporary power supply through the layout chart.

2. Select good cement kiln hoisting equipment and transportation equipment. The device on the cement kiln-production line is generally large size and heavyweight, so the necessary hoisting equipment and transportation equipment should at least be on a broad scale. The selection, usage, maintenance of other tools such as steel wire rope, hemp rope, and the fixture should be in accordance with relevant provision. Fuel, cutter, and welding tools also should be prepared to make sure the success of the installation.

3. Require for professional for cement kiln. Cement rotary kiln has a short construction period and more work high above the ground because process equipment is at height. So, the characteristic of the installation of cement kiln is difficult and dangerous. That requires constructors should have fit bodies, a wide-scale of knowledge, skilled technology, and the ability to adapt to local conditions.

5. Debugging in a cement kiln. After the installation, check whether the technical indicators are qualified or not. Buyers should inspect the whole cement rotary kiln and its subsidiary facilities before any debugging. Details about debugging are below.

large cement plant for sale | cement plant with high production capacity

Product Name: Large Cement Production Plant / Cement Factory for Sale Capacity: 5000-10000 TPD Equipment: raw material crusher, raw meal grinding machine, storage yard, stacker reclaimer, preheater cyclones, rotary kiln, grate cooler, cement mill, etc. Cement Production: ordinary portland cement, pozzolana portland cement, white portland cement, quick-setting cement, refractory cement, etc.

In contrast to the mini cement plants, we usually call the cement plant with a clinker production capacity of more than 5000 TPD as the large cement plant. As a manufacturer who specializes in cement technology development and equipment upgrading and has over decades of cement machinery manufacturing experience, AGICO has the ability to design and build large cement plants with clinker production of up to 10,000 tons per day.

With the increase of plant scale and production capacity, the size and capacity of the crushers, cement mills, rotary kilns, and other machines in the cement plant also increase correspondingly. Therefore, the increase of plant scale should be accompanied by the growth and development of cement manufacturing machinery so as to maintain or even improve the efficiency and productivity of cement plants.

Compared with mini cement production lines, large cement plants have higher energy consumption. But take into account their output, they actually have a higher energy utilization rate and production efficiency, which can save production costs for cement manufacturers in the long run. Also, the operating efficiencies of large plants are high. The fuel consumption is around 650 700 kcal/kg clinker; power consumption is between 65-80 kWh/ton, and man-hours required per ton of cement are as low as 0.15.

AGICO large cement plants are best suited for manufacturing cement by dry process. The cement-making machines in our large cement plants include cement crushers, cyclone preheating systems, rotary kilns, cement mills, and other auxiliary equipment.

The purpose of raw material preparation in the dry process of cement manufacturing is to reduce large-sized raw materials to the proper size and mix them into homogenized raw meals. We will install the most suitable crushing machinery in the cement plant according to the raw materials and production requirements of customers, so as to achieve economic and green production as much as possible.

The application of cyclone preheating system in cement plant hugely reduces the heat loss and fuel consumption in the clinker burning process, and also significantly reduces the floor area and pollution emission of the whole plant.

The 5-stage cyclone preheater is the most installed preheating system in our large cement plants. According to customers requirements, we could design other stage preheaters for the cement plant. The cyclone preheater uses hot exhaust gas from the rotary kiln as its heat source. Before entering the rotary kiln, the cement raw meal heat exchanges with the high-temperature gas in the preheater to preheat.

The rotary kiln is where the burning phase of the cement manufacturing process takes place; it is the core part of a cement plant. The raw meal in the rotary kiln will be heated to 1,500 during the burning process to form cement clinker.

The production capacity of a cement plant is directly determined by the capacity of the rotary kiln. Our large rotary kilns can fully meet the requirement of bulk cement production. Together with the advanced preheating system, our rotary kilns could achieve high rotary speed and high output per unit volume. The good sealing effect of our rotary kilns allows them to fully recycle the waste heat and produce high-quality clinker.

Cement mills are used for raw material reduction and cement grinding in the cement manufacturing process. The cement grinding process is the final manufacturing stage at a cement plant. After this process, the clinker will become fine cement powders and ready to be packed.

The most used cement mills in our large cement plants are cement ball mills and vertical roller mills. Both of them can well undertake the task of cement grinding, we will take their production efficiencies, power consumptions, investment costs, product particle shapes and sizes, maintenance fees, and other elements into account and decide which one to use when designing a cement plant.

cement euipment overview | cement making machines | cement plant

How much do you know the cement equipment? Cement equipment refers to the cement making machines that are applied to the cement manufacturing plant. Before learning the cement equipment, we learn the process of cement manufacturing process first.

In general, we can divide the cement production line into three main steps: raw material preparation of cement, clinker production, and finished cement. Each step has some cement manufacturing machines, such as raw mill, cement crusher, cement mill, cement kiln, cement cooler, cement dryer, cement silo, packing machine, etc.

As we all know, the first step of the cement production line is raw material preparation. Cement crusher is the main equipment of this step. The raw materials are fed into cement crusher by vibratory feeder; the breaking material is transported by the belt conveyor to the impact crusher for further crusher.

There are various types of cement crusher on the market, including jaw crusher, cone crusher, hammer crusher, impact crusher, and etc. AGICO Cement can provide all types of cement crusher. Our cement crusher can fully crush the raw material, reduce feed size into the mill, and increase the reaction of raw material in the following cement manufacturing process, reduce the energy consumption of the whole cement production line.

Cement mill is another necessary cement equipment of the cement plant. After raw material crushing, cement mill plays vital role in the further cement manufacturing process. Cement ball mill, vertical cement mill, and cement roller press are common types of cement grinding plant.

Cement mill has two functions of the cement production line. Firstly, cement mill is used to grind the crushed material into fine size before clinker production. A cement mill is also applied for grinding clinker into finished cement. The cement clinker grinding is the last step of the cement manufacturing process, in this step, cement mill grinds cement clinker, gelatinizing agent and other materials into the required size, which can meet the requirement of cement.

AGICO Cement adopts the advanced internal selection and special compartment device, add the activation device. The grinding tail has a special discharge grate plate, which greatly reduces the size of the grinding media of the grinding bin, greatly improves the grinding efficiency, and achieves the goal of high output and low energy.

Cement kiln is used to make cement clinker, and it is the core equipment of cement production line; usually, apply for dry method cement production. There are two main kinds of cement kiln to manufacture cement clinker. One is the cement rotary kiln, and it is horizontal and can rotate. Rotary kiln is widely applied to the cement clinker production. Another one is vertical and fixed kiln, so it is called as a vertical kiln.

AGICO Cement can manufacture cement rotary kiln with advantages of convenient and reliable operation, stable thermal regulation, and high operation rate. Compared to other rotary kilns on the market, our rotary kiln increase operation rate by 10%, production capacity by 5%-10%, widely apply for cement production line of different countries.

Clinker cooler and dryer are two necessary parts of cement clinker production. The dryer produced by AGICO can apply for various raw materials and easy to adjust. During the operation, the dryer supplies heat stably, ensures the drying quality and cement quality. The cement cooler is also used for clinker production. Using blower blowing cold air, quench the cement clinker that laid on the grate plate, decrease the temperature of clinker from 1200 to 100 and below, the cooling exhaust gas enters into the kiln as secondary air.

In fact, every cement plant requires different cement equipment. Except for the cement equipment we mentioned above, there are many other cement making machines applied for the cement plant. In the real application, as a professional EPC cement plant project provider, AGICO Cement always provides a solution according to clients needs, such as mini cement plant, VSK cement plant. We also provide single cement equipment with high quality and competitive price, welcome to contact!

cement kiln, cement plant kiln, kiln in cement plant | shaft kiln, rotary kiln

Cement kiln is used to calcine cement clinker in the cement plant, also known as cement plant kiln. Like we all know, cement production line include three main steps: preparation of cement raw materials, clinker production, and finished cement production. As a core cement equipment of clinker production, cement kiln is applicable for various materials, such as limestone, clay, dolomite, bauxite, etc.

AGICO CEMENT supplies cement plant kiln with high quality and competitive price, both shaft kiln and rotary kiln are applied to the cement plant of AGICO, as a proffesional cement kiln manufacturer from china, we always both work on cement rotary kiln and shaft kiln, you can choose suitable types of cement kiln according your real needs(how to buy cost-effective cement kiln?). Any need, welcome to contact and select your cement kilns!

What is shaft kiln? Shaft kiln, also known as vertical kiln or vertical shaft kiln, it is vertical and fixed. Shaft kiln is a necessary type of cement kiln in the cement production. As we all know, VSK cement plant is widely applied in the cement industry.

What is cement rotary kiln? Cement rotary kiln is a horizontal cement kiln that can do the rotational motion. According to different heating methods, cement rotary kiln is divided into internal heating type and external heating type.

The materials of the internally heated rotary kiln directly contact with the flame and flue gas, The materials of the external heating rotary kiln are not in direct contact with the flame and flue gas.

AGICO Cement is a cement equipment manufacturer from China supplies various cement kilns with rich experience and high quality. We are specialized in shaft vertical kiln, cement rotary kiln, and related cement equipment in the clinker plant. Based on large production capacity and rich experience, we provide you with a full range of customization, manufacture, and after-sale service. Because our cement equipment has high quality and competitive price, we have exported various cement plant and equipment to more than 50 countries and regions around the world.

precalciner calciner in cement plant, cement calciner | calciner for sale

What is pre-decomposition technology? The core of the new dry process cement plant is suspension preheating technology and pre-decomposition technology. The clinker pre-decomposition technology refers to adding a new heat source, precalciner, between preheater and cement rotary kiln. When the fuel is injected into the precalciner for combustion, the raw material preheated to about 750 by cement preheater is fed into the precalciner at the same time so that the exothermic process of fuel combustion and the endothermic process of carbonate decomposition in the raw meal is carried out rapidly. Generally speaking, the cement raw meal decomposition rate can reach more than 90% before entering the rotary kiln.

What is precalciner? Precalciner, also known as cement calciner, is a kind of high-efficiency direct combustion solid-gas heat exchange cement equipment. It disperses and suspends cement raw meal powder in airflow, making fuel combustion and calcium carbonate decomposition happen in a short time (generally 1.5 ~ 3 seconds). To some extent, it replaces part of the calcining work of a cement rotary kiln. In the calciner, because the fuel combustion and the material endothermic reaction are carried out at the same time, there is no visible flame, but in a state of low-temperature flameless combustion at 820 ~ 900 .

At present, more than a dozen types of precalciners have been put into use. Although each has its advantages, its characteristics and functions are similar. According to the different movement form of airflow, calciner in cement plant can be divided into four types:

The tertiary air with a temperature of 200 ~ 250 is blown into the air chamber of the fluidized bed calciner by a high-pressure fan and then enters the inner chamber through the air cap so that the fuel and raw materials form afluid-bed.

The preheated cement raw meal (temperature is about 820 ~ 860, not exceeding 860), a certain amount of fuel, and hot air (kiln tail flue gas or tertiary hot air) are fed into precalciner at the same time. After entering the calciner, the fuel and raw meals are dispersed by high-speed airflow and in a suspension state at about 900. The fuel is flameless combustion in the calciner, and the heat released by it makes the calcium carbonate in the raw meal decompose at a high speed through a convection heat transfer and radiation heat transfer. Generally, this decomposition process can be completed in a few seconds, and the decomposition rate of the whole raw meal is as high as 85% ~ 95%, forming an efficient operation mode of combustion, exothermic, endothermic, and decomposition at the same time.

Precalciner forms the clinker calcining system in the new dry process cement plant together with cement preheater, rotary kiln, and cement cooler. In addition to cement calciner, AGICO also provides other high-quality clinker calcination equipment, such as cyclone preheater, cement rotary kiln, grate cooler, rotary cooler, etc.

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 plant for sale | cement plant equipment design | agico machinery

Since our company was founded in 1997, we have never stopped the research in the field of cement production technology and cement equipment design. Over the past 20 years, our engineers and construction team have successfully built hundreds of cement plants for customers around the planet. We are always ready to provide you with the best cement production plan!

The new dry process of cement manufacturing is the latest and most efficient modern cement production technology. It takes suspension preheating and pre decomposition outside the kiln as the core technology, widely applies the latest achievements of modern science and industrial production to the whole process of cement production. The cement plant designed and built according to the new dry process cement production technology has features of high-quality, high-yield, energy-saving, environmental protection, large-scale, and automation at the same time.AGICO has always been the pioneer and practitioner of the new dry process of cement manufacturing. In many years of production experience, we have constantly improved our production equipment and design scheme. At present, the cement plant we built can perfectly meet the production requirements of new dry process cement, making the cement production process of customers more energy-efficient and eco-friendly.

Our professional engineer team will conduct a comprehensive analysis of the factors such as raw materials, production requirements, and geographical location of customers, and design the most perfect cement plant construction plan.

All the equipment in the cement plant will be built in our factory. Small equipment will be directly transported in the form of finished products after assembly, while large equipment will be transported in the form of parts and components, and then assembled on site after arriving at the construction site.

The cement plant construction process will be completed on-site by our professional construction team. With the construction experience of many successful projects, our team is able to achieve the best construction speed and quality of the cement plant.

The structure of a cement plant is complex, which requires workers in different positions to coordinate the operation to smoothly carry out cement production. Our technicians are able to provide customers with free operation training and equipment maintenance guidance to make sure the cement plant is fully functional.

We manufacture and sell various types of cement equipment, and provide transportation and field assembly services. Our cement equipment has a variety of models, which can meet the needs of different scale cement production.

We are always committed to providing customers with the best service in the industry. From design to construction, we devote ourselves to every link. We do our best to bring you the most efficient, energy-saving and environment-friendly cement production scheme.

Our factory is equipped with a series of advanced manufacturing machines such as 8m vertical lathe, 10m gear hobbing machine, 8m gantry milling machine, 150t crane, and 40t automatic electric furnace, which greatly improve our production efficiency and product quality.

During many years construction experience, we have developed a perfect quality management system that strictly supervises every detail of the construction process to ensure the quality of the finished project.

Our projects are not only distributed in 27 provinces of China, but also exported to Brazil, Angola, Russia, Vietnam, Mongolia, and other countries. With professional construction and high product quality, our company has achieved a good reputation among customers.

thermo fisher scientific - cn

(Nuclear Regulatory Commission, NRC) (Canadian Nuclear Safety Commission, CNSC) 1954 274(b) CFR 10 150.15 NRC