Grinding aid and cement clinker grinding method using the grinding aid

Abstract

The application relates to the field of cement grinding aids, and specifically discloses a grinding aid and a cement clinker grinding method using the grinding aid. A grinding aid, including a primary grinding agent and a secondary grinding agent with a weight ratio of (2-3): 1; a cement clinker grinding method using the grinding aid is as follows: Step S1: cement clinker Roll crushing after mixing with the primary abrasive to obtain a pre-crushed material; Step S2: After mixing the pre-crushed material and the secondary abrasive, perform coarse grinding and fine grinding in turn to obtain a mixed powder; Step S3: Mix the mixed powder The powder is selected, the qualified powder is output and stored, and the unqualified powder is returned to the fine grinding step to continue grinding. The grinding aid of the present application can be used for cement grinding, which has the advantages of increasing the fineness of cement grinding and reducing the energy consumption of grinding.

Description

technical field [0001] The application relates to the field of grinding aids, more specifically, it relates to a grinding aid and a cement clinker grinding method using the grinding aid. Background technique [0002] The grinding process of cement clinker is an operation with high energy consumption, especially in the fine grinding and ultrafine grinding of minerals, the energy consumption is even higher. Statistical results show that the electric energy consumed by grinding in the world accounts for about 5% of the total power generation in that year. [0003] In the grinding process, in order to reduce the frictional resistance between the grinding raw materials and reduce the agglomeration behavior of fine particles during the grinding process, the grinding raw materials are usually ground by adding grinding aids. Grinding aids reduce the resistance of the grinding process by reducing the surface energy of the new surface after the raw materials are broken in the grindin...

AI Technical Summary

Problems solved by technology

[0004] However, in related technologies, the composition of grinding aids is usually relatively single, which cannot adapt to various complex working conditions encountered in grinding, and the grinding effect will be greatly reduced due to different actual working conditions

Especially in the grinding process of cement clinker, since only a single-component grinding aid is added for grinding in the ball milling process, energy consumption can be reduced to a certain extent, but when the cement clinker needs to be ground to a fine When the degree of grinding is high, the energy consumption of grinding is still high, and the quality of grinding needs to be improved.

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