Output 300000 t/year Cement Making Production Line

Specifications

Output 300000 t/year Cement Making Production Line  

1. crushing and prehomogenization

In the course of cement production, most of the raw materials will be crushed, such as limestone, clay, iron ore and coal etc. The limestone is greatest in consumption of all the raw materials when producing the cement, has the bigger size and higher hardness after the exploitation. Therefore the crushing of the limestone plays an important role in all the materials at the cement plant. It applies the scientific stacking and taking technology, and realizes the initial homogenization of materials, so that the materials stockyard has the function of storage and homogenization simultaneously.

2. Raw Material Preparation

In process of producing the cement, the production of 1 ton Portland cement needs grinding at least 3 tons of materials (including all kinds of raw materials, fuel, clinker, mixture, plaster).

According to the statistics, the required power consumption for grinding dry cement accounts for more than 60% that of the whole plant, in which more than 30% for raw material grinding, about 3% for coal grinding, about 40% for cement grinding. Therefore, reasonable choice of grinding equipment and process, the optimization of technological parameters, correct operation, the control of operation system are of great significance of ensuring the quality of products and reducing energy consumption.

3. homogenization 

In the production process of new dry cement, the stability of raw material component entering the cellar is premise of stabilizing the clinker sintering thermal system. The homogenization system plays the last line of control function in stabilizing the raw material components entering the cellar.

4. Preheating and decomposition

The preheating and decomposition of raw materials are accomplished by the preheater, instead of rotary kiln, shortening the kiln length, and make the heat exchange process of materials in the state of accumulation in the kiln.

Processed in the preheater in a state of suspension, the raw materials can be fully mixed with the hot gases discharged from the kiln, increasing the contact area for gas materials, as a result, fast heat transfer speed and high heat exchange efficiency, increasing the productive efficiency of kiln system, and decreasing the heat consumption of clinker sintering.

5. sintering of cement clinker

After the raw material completes preheating and precalcining in the cyclone preheater, it begins the sintering of the clinker within the rotary kiln for the next procedure.

In rotary kiln the carbonate is for further quick decomposition and makes a series of solid-phase reaction, generating the cement clinker mineral. With the rising of the materials temperature, these minerals will become into the liquid phase, and make reactions and produce large numbers of the clinkers. After the clinker sintering, the temperature goes down. finally the high temperature clinker unloaded from the rotary kiln is cooled by the cooling machine to the temperature which can be borne by the downstream conveying, storage and cement mill, recycle the sensible heat of the high temperature clinker at the same time, and improve the heat efficiency of the system and quality of the clinker.

6. Cement grinding

The cement grinding is the last process, and also the most power consumption of the process. Its main function is to grind the cement clinker (gelling agent, performance adjusting material, etc) to the suitable size (indicated by the degree of fineness, specific surface area), form a certain grain composition, increase its hydration area, accelerate the hydration speed, and meet the needs of the cement slurry condensation and hardening.

7. cement packing

The Cement has two kinds of shipping methods of bag and bulk packing on delivery.

About Us:

Henan Zhongke Engineering & Technology Co., Ltd. is specialized in heavy equipment like various crushers, magnetic separators, mining machines, bricks and blocks machines, cement production line, AAC block line, etc., which is located in the middle of China. Our competitive price, high quality products and excellent after-sales service had gain us good reputation in this field.

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