cement clinker grinding plant

cement clinker grinding plant

Faced with increasingly severe impact of the financial crisis, the overall development of the cement industry still maintained a good momentum of development. One important reason is that in recent years, the national macro-control on the cement industry to accelerate the elimination of outdated, promote structural adjustment achieved significant results, thus increasing the capacity of the financial industry to resist financial risks. It is anticipated that the cement industry is still in a period of rapid growth.

Cement clinker grinding plant may be the last step of cement production process. Cement production layout is that at the mine to built of cement clinker production line, in large cities near the cement sales market to establish a new cement grinding plant . Most of the cement admixture is the city's industrial waste generated, new cement clinker grinding plant can greatly digest cities nearby slag, fly ash, slag and other industrial waste, which is a green industry.

Our cement clinker plant has many advantages, such as low investment, low energy consumption, good quality, higher than the surface area of more than Admixture. Ordinary cement grinding surface area of about 300m2 / kg, the production of cement grinding system specific surface area 340m2 / kg or more, the cement-day strength increased 3 ~ 5Mpa, can be more Admixture 7 to 12%, down 7 tons of cement production costs yuan. Improve the cement particle size distribution, improve the quality of cement; simplifying the process, increased equipment operation rate significantly.

New cement clinker grinding plant Zenith provides using the most simple process, most convenient operation, process equipment at least, less investment, energy-saving, environmental protection, and other mixed materials can be mixed with more advantages.

cement crusher crusher in cement plant | agico cement

cement crusher crusher in cement plant | agico cement

Raw materials of the cement plant are mostly from open-pit mines, and the ore size of large mines can reach 1.5-1.8m. In the preparation of cement raw materials, we first need to crush limestone, gypsum, clay and other materials into proper size to facilitate the subsequent transportation and storage, at the same time make full preparations for the next process (cement raw materials grinding). Therefore, as the first process of cement production, material crushing is particularly important in the design of a cement plant.

As a cement plant manufacturer, AGICO not only produces cement production lines, stone crushing plant, but also manufactures many cement equipment, such as a series of cement crushers required for cement raw material crushing: cone crusher, impact crusher, hammer crusher, jaw crusher, and four-roll crusher.

The following methods are usually used to crush materials: extrusion, cutting, and impact. In normal conditions, one crusher may use one or more methods to break materials, among which the extrusion principle has the lowest energy consumption and the least wear. While there are some other factors need to be considered when we choosing the crusher, such as material moisture content, hardness, abrasion, mechanical robustness, and operating costs.

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.

a case study of cement clinker processing plant

a case study of cement clinker processing plant

Being one of the basic elements for setting up strong and healthy infrastructure, cement plays a crucial role in economic development of any country. Having more than a hundred and fifty years history, it has been used extensively in construction of anything, from a small building to a mammoth multi purpose project. This paper deals with a case study of a reputed process industry, some changes in the process has been suggested, which leads to reduction in labor cost and production cost.

There are three types of processes to form cement - the wet, semi-dry and dry processes. In the wet/semi-dry process, raw material is produced by mixing limestone and water (called slurry) and blending it with soft clay. In the dry process technology, crushed limestone and raw materials are ground and mixed together without the addition of water.

The dry and semi-wet processes are more fuel-efficient. The wet process requires 0.28 tonnes of coal and 110 kWh of power to manufacture one tonne of cement, whereas the dry process requires only 0.18 tonnes of coal and 100 kWh of power.

The manufacturing process of cement consists of mixing, drying and grinding of limestone, clay and silica into a composite mass. In this process will need some cement crusher machines, such as jaw crusher, impact crusher,VSI crusher and so on.The mixture is then heated and burnt in a pre-heater and kiln to be cooled in an air-cooling system to form clinker, which is the semi-finished form. This clinker is cooled by air and subsequently ground with gypsum to form cement.

cement clinker calcination in cement production process | agico cement plant supplier

cement clinker calcination in cement production process | agico cement plant supplier

The cement industry is an indispensable basic raw material industry for national economic development, production construction and peoples livelihood. It is widely used in civil construction, water conservancy, national defense and other fields. The development scale of a countrys cement industry reflects its level of economic and urban development to a certain extent. Since the 21st century, with the continuous growth of the global economy, the cement industry has undergone a breakthrough change. Intensive production of new equipment has gradually replaced the backward mode, and industrial technology has developed rapidly. Up to now, there are nearly 700 cement enterprises and countless cement plants of various sizes are engaged in the manufacturing of cement equipment and cement in the world.

Cement production is a complex process. A batch of high-quality cement needs many kinds of raw materials to be mixed together and then formed through layers of working procedures. Problems occurred in any stage will affect the quality of the final products. Clinker calcination is the core part of the cement manufacturing, in which raw materials react with each other at high temperatures and eventually form clinkers. So next, we will have a detailed understanding of the clinker calcination and cement production process.

The cement production processes mainly include raw material crushing and storage, raw material proportioning and grinding, clinker calcination, clinker grinding, cement packing, etc. Portland cement is the most widely used cement in our daily life. It is made from a variety of raw materials, typically sand, iron ore, clay, gypsum, limestone, shale, etc. Limestone is the main one, accounting for 83% of the raw materials.

Raw material crushing and storage is the first step of cement production. In this step, raw materials should be fed into the crushing mill to reach an appropriate granularity, and then be homogenously stored in the steel silo for further processing.

Raw material proportioning and grinding is the second step, in which the manufacturer will prepare the raw mix according to the requirements of clinker ingredients. Generally, limestone will take up a large proportion, as to other corrective materials such as sand and iron ore are added in small amounts to ensure that the chemical composition of the raw mix satisfies the process and product requirements. After that, the raw mix will be sent into the ball mill or other grinders so that the particle size of the powder reaches a certain degree of fineness. The higher the grinding fineness is, the faster the reaction speed in the rotary kiln.

Clinker calcination is the most crucial part of the whole process of cement manufacturing. At this stage, ground raw materials will be sent into the cement kiln and be heated at a high temperature to produce chemical reactions with each other, eventually forming clinker. In addition, clinkers that just complete the calcination will have a high temperature, thus a cooling machine is usually placed behind the rotary kiln so that the clinker can go directly into the cooler for dropping to normal temperature.

Clinker Grinding is the final step in cement production. The cooled clinker is a kind of granular material with different particle size. They will be ground in the grinding mill to reach the qualified fineness of cement product. During the grinding, 2-3% gypsum powder is added as retarder so that when cement contacts with water, its solidification speed will not be too fast. Sometimes, we also add some other minerals (blast furnace slag, fly ash, etc.) to obtain the desired cement performance. After all the above processes are completed, the cement will be packaged and sent to its destination.

The cement manufacturing processes can be totally classified into dry method process and wet method process. The main difference between them lies in the different mix and preparation method of raw material. In the wet process, water is usually added to the raw mix to form the slurry. While in the dry process, raw mix is the fine powders after grinding and drying. The selection of process is mainly based on the nature of raw materials. When their moisture content is more than 20%, the wet process will be preferred. In the past, the wet process was mostly used in cement production because it was easier to control the chemical composition of raw mix, the chemical composition is distributed more evenly and the clinker had better quality, but it consumes more energy. At present, most cement plants adopt dry method process.

In general, the moisture content of materials in the dry method cement kiln is less than 1%, so this kind of kiln can reduce the heat needed for evaporating water. But this method also has its drawbacks, that is, the fluidity of materials in the cement kiln is poor, resulting in uneven clinker composition.

The wet method cement kiln mainly processes raw material slurry with the water content of 32%-40%. The main advantage of this kiln is the good fluidity of raw mix slurry. However, the heat required for evaporating water in this kiln consumes a lot of energy, which is not conducive to energy saving and environmental protection.

In actual calcination, a complete clinker calcination system includes the cooler, pulverized coal combustion equipment, blower, exhaust fan and the dust collector. However, in the latest calcination system, the addition of preheater and precalciner reduces the energy consumption and optimize the performance of cement kiln to a large extent. The raw mix in preheater is preheated and partially calcinated 30% before entering the rotary kiln. In addition, the application of precalciner significant increases the clinker capacity of the cement kiln. After that, the raw mix will enter the rotary kiln for further calcination.

When raw meals enter the rotary kiln and are heated by the high temperature, they will go through six reaction stages in turn, namely drying, preheating, chemical decomposition, exothermic reaction, sintering and cooling. The operations of each stage are as follows:

AGICO is one of the leading cement plant and cement equipment suppliers in China. We provide high-quality rotary kiln, crushing mills, grinding mills, dust collector, etc. We also offer cement plant design service, equipment installation and commissioning service and after-sales service. If you are interested in our products, please feel free to contact us!

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.

grate cooler clinker cooler | agico grate cooler in cement plant

grate cooler clinker cooler | agico grate cooler in cement plant

Grate cooler, as a quench type clinker cooler, is the important cement equipment in the clinker calcination system. Its main function is to cool and transport cement clinker. Meanwhile, provide hot air for cement rotary kiln and precalciner.

There are various types of clinker coolers developed before grate cooler: shaft cooler, rotary cooler, etc. Compared with them, grate cooler is the most suitable one for cement production lines with high outputs and usually designed forlarge cement kiln capacity that up to 10000 t/d.

HCFC reciprocating grate cooler is one of the hot-sale grate coolers produced by AGICO. It is a kind of large hydraulic controlled grate cooler that transferred from simple speed control to speed and stroke control (i.e. PLC control). It has high efficiency of heat recovery and cooling, long service life, low energy consumption, high operation rate, and stable system operation, widely used in cement plants.

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.

rotary cooler - cement cooler | agico cooler in cement plant

rotary cooler - cement cooler | agico cooler in cement plant

Rotary cooler is also called clinker cooler, which is the important support equipment of cement rotary kiln. It is mainly used to cool the high-temperature clinker1000-1200discharged from the rotary kiln into an appropriate temperature (less than 200). The cold air produced by it contact countercurrent with the clinker in the cylinder and generate heat exchange, then they will enter the rotary kiln as combustion air to optimize the calcination process and reduce heat consumption.

The rotary cooler produced by AGICO has the advantage of simple structure, high heat efficiency, low maintenance cost, less total investment, etc., which are often used to cool the clinker of 500 ~ 2000t/d cement production lines. Besides, we also offer conveying equipment, feeding equipment, and other related cement equipment according to customers requirements.

AGICO is an innovative supplier of different kinds of cement equipment. We combine industry expertise with new technology to deliver the best solutions to cement plants. Rotary cooler is one of our hot-sale devices. It provides a great solution for high-efficiency clinker cooling. Built on dependability and proven technology. Whether you require short or long residence times, carbon steel or specialty steels, AGICO can customize the rotary cooler for your application.

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 production line - hxjq mining machine manufacturer

cement production line - hxjq mining machine manufacturer

Cement in powder form can be changed from plasticity paste to hard stone-like body and can become a total cemented granular materials through physical and chemical processes after being mixed with water. So cement is a good mineral binder. Cement can be not only hardened in the air, but also better hardened in the water in which it will maintain and develop strength. So cement is kind of cementitious material which will be of stronger hardness in water. Cement mill is used for cement grinding. Cement crusher is applied for cement crushing. In cement mining, you need to choose suitable cement grinding mill and cement crusher.

Cement making plant is used in cement raw materials crushing plant. Limestone crushing: Limestone is the most main raw materials for cement making, but natural limestone is usually big, we use cement limestone crusher to crush them into small particles. Bauxite crushing: bauxite is the additive. For making cement raw materials, bauxite is crushed by cement equipment into powder. Then bauxite particles and limestone particles together are grinding into raw powder by raw mill. Coal crushing: Coal powder is used to put into cement clinker. Raw coal is crushed by cement plant then grinded by cement coal mill. Gypsum crushing: gypsum powder made by gypsum crusher and gypsum mill are put into cement clinker together with coal powder, then these cement raw material enter into the cement mill for fine grinding.

In the cement manufacturing plant, not only the crushing machinery, but also the grinding machine is used as cement machinery. Stone Crusher: Limestone crusher Limestone is the main raw materials for making cement, so we need the limestone crusher to crush limestone to small particle sizes to make cement. Raw mill: it is used to crush limestone particles and additive materials Coal crusher and coal mill: They are used for crushing and grinding coal into powder in cement plant. Gypsum crusher and mill: In cement plant, they are used for crushing and grinding gypsum into powder. Cement mill: They are used to grind cement clinker into powder to make cement.

Get in Touch with Mechanic
Related Products
Recent Posts
  1. simple ballast crusher kenya

  2. crusher pasir produksi industri digunakan

  3. carbid ball end mill

  4. ball mill vs bowl mill

  5. ball mill filling degree

  6. used hardinge conical ball mills

  7. feldspar lumps bauxite ball mill

  8. ball mills south africa

  9. quartz mining wet ball mill quartz mining growing

  10. sops for ball mill equepments

  11. equipment used in cement factory

  12. high end large mineral classifier in kolkata

  13. ball mill definition

  14. for okada rock crusher andhra pradesh

  15. high end environmental river sand ceramic ball mill price in chicago

  16. paris high end large glass rock crusher manufacturer

  17. ras al khaimah economic large stone crusher for sale

  18. stone crusher machine dealers in pune stone crusher machine

  19. economic large limestone cement mill for sale in gwangju

  20. high quality environmental bauxite mineral processing production line manufacturer in napoca