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Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement grinding. It can significantly increase the output of cement platform, the strength of cement at various ages, and improve its fluidity. The cement grinding aid can greatly reduce the phenomenon of electrostatic adsorption ball formation formed during the grinding process, and can reduce the re-agglomeration tendency of the ultrafine particles formed during the grinding process. The cement grinding aid can also significantly improve the fluidity of the cement, improve the grinding effect of the mill and the powder selection efficiency of the classifier, thereby reducing the energy consumption of the grinding. The cement produced by the grinding aid has a lower tendency of compaction and coalescence, which is beneficial to the loading and unloading of the cement and can reduce the wall hanging phenomenon of the cement storage.

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The beneficial effects of scientific and rational use of cement grinding aids on cement production: (1) Improve grinding efficiency, increase bench production, and reduce power consumption. This is the most direct effect of using cement grinding aids. Since the grinding aid disperses the particles of the grinding material and increases the fluidity thereof, the grinding medium in the grinding machine strengthens the pulverizing action of the material, thereby improving the grinding efficiency and increasing the production time of the cement. At the same time, the relative power consumption is reduced. (2) The amount of clinker is reduced, and the amount of mixed materials is increased. Since the grinding aid can increase the fine particle content and a part of the grinding aid material itself to promote the hydration of the cement, the cement strength performance can be improved.

A grinding aid is a surfactant that can improve the grinding environment. The common grinding aid is to improve the grinding effect by improving the viscosity of the material in the mill, the dispersion of the particles and the flow state of the slurry. To a large extent, it solves the problems of powder consumption and energy consumption. The main purpose of the grinding aid is to reduce or terminate the aggregation of the particles, to improve the fineness of the cement and the specific surface area, or to grind to the same fineness, and to increase the productivity when adding the grinding aid. At the same time, the addition of the grinding aid adsorbs the surface of the cement particles, reduces the friction between the particles and the adhesion, so that the cement particles slide, and the fluidity thereof also becomes better, thereby improving the grinding efficiency and the cement performance.

Grinding aids are admixtures that are added during cement grinding to aid in the grinding without compromising human health and cement and concrete properties. Alcohol amines are the main components of cement grinding aids in the industry. The strengthening effect of these substances on cement is mainly reflected in two aspects: First, physical reinforcement, that is, the influence of alcohol amines in the grinding process. The change of strength caused by the grading of cement particles, such as the addition of alcohol amines, under the same specific surface area, the concentration of cement particles is concentrated, thereby increasing the strength of the mortar; the second is the chemical strengthening effect, which is the alkalinity of the alcohol amines. The chemical excitation effect of the mineral hydration process.

In the cement industry production, when the clinker grinding to a certain degree of fineness, clinker fine particles will appear agglomeration, paste grinding phenomenon. The agglomeration and pasting of clinker particles lead to a significant reduction in grinding efficiency.