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Clinker
Raw material pretreatment process: storage, transportation and weighing of raw materials. The main raw materials are: limestone, clay, iron powder, etc.. These raw materials need to be weighed and mixed proportionally to form a homogeneous mixture.
Features
Dry process cement clinker production line process flow
1. Raw material pre-processing
Raw material pretreatment process: storage, transportation and weighing of raw materials. The main raw materials are: limestone, clay, iron powder, etc.. These raw materials need to be weighed and mixed proportionally to form a homogeneous mixture.
2. Crushing, mixing and grinding
The pre-treated raw materials enter the preparation system for preliminary crushing and mixing. Then the preliminarily prepared materials are fed into the ball mill for fine grinding to form powdered raw materials.
3. Clinker production
The finely ground raw material is fed into a rotary kiln for firing to form clinker. In the rotary kiln, the raw materials undergo chemical reactions at high temperatures to form new compounds. After cooling, the fired clinker is obtained.
4. Conveying and storage
After the clinker is cooled, it is sent to the clinker storage for storage through conveying equipment. Clinker storage is usually a large cylindrical structure, which can store a large amount of clinker to meet the production demand.
5. Raw material preparation
The process of raw meal preparation mainly includes mixing clinker with appropriate amount of gypsum, and then feeding it into the mill for grinding to form raw meal.
6. Cement production
The ground raw material is fed into the cement mill and mixed with appropriate amount of limestone and iron powder for further grinding. The ground mixture is then fed into the cement clinker mill for final grinding.
7. Packaging and storage
After grinding, the cement powder is sent to the packing system for packing through the conveying equipment, and then sent to the cement warehouse for storage. The design of the cement vault is similar to that of the clinker vault, which can store large quantities of cement.
8. Exhaust gas treatment
During the cement production process, a large amount of exhaust gases, such as carbon dioxide and sulfur dioxide, are produced. These exhaust gases need to be treated before they can be discharged into the atmosphere. Common exhaust gas treatment methods include alkaline solution absorption, activated carbon adsorption and so on.
In general, the process flow of dry cement clinker production line mainly includes raw material pretreatment, crushing, mixing and grinding, clinker production, conveying and storage, raw material preparation, cement production, packaging and storage, and exhaust gas treatment. Reasonable organization and effective operation of these links is the key to ensure cement quality, improve production efficiency and reduce energy consumption.
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