Multi-functional environment-friendly grinding aid

Abstract

The invention discloses a multi-functional environment-friendly grinding aid, and relates to a cement grinding aid. The invention mainly aims to solve the problems that the energy consumption is high, the grinding efficiency is low, use safety of the grinding aid is low and the like in the cement grinding process. Light and porous expanded perlite is adopted to serve as the grinding aid, can be separately doped or compounded, and has good grinding aiding effect on clinker, slag, flyash and the like. The content of a portland cement grinding aid is 0.2 to 0.5 percent; and the content of a slag cement grinding aid is 0.3 to 0.4 percent. A compound grinding aid comprises 0.48 percent of expanded perlite, 0.001 percent of triethanolamine and 0.003 percent of sodium hexametaphosphate. The multi-functional environment-friendly grinding aid has the advantages that: phenomena of segregation, bleeding and powder enrichment cannot happen in the mortar stirring process; the activity of glass contributes to improving the strength of cement concrete, components harmful to cement and concrete are not contained, and the grinding air is convenient to use, low in price, safe, environment-friendly, high-efficiency and high in applicability; the fine powder content is effectively increased, and the strength of cement cured for 28 days is improved; and the aims of increasing yield, saving energy and reducing consumption are fulfilled.

Description

Multifunctional environmental protection grinding aid technical field The invention relates to a cement grinding aid. Background technique In the cement industry, the energy consumption of the grinding process is very high, and the electricity consumption accounts for about 60-70% of the total electricity consumption of cement production. Grinding aids have multifunctional functions such as increasing mill output, reducing unit energy consumption, increasing fine powder content, and improving cement quality. The amount of active admixtures such as slag and fly ash is relatively large, but some grinding aids have a good effect on clinker grinding, and the effect is not ideal after adding admixtures. Some grinding aids contain CI-, which has a corrosive effect on steel bars and has a low safety factor. Contents of the invention The purpose of the present invention is to use light, porous and highly absorbent expanded perlite as a grinding aid. The main component of exp...

AI Technical Summary

Problems solved by technology

The amount of active mixed materials such as slag and fly ash is relatively large, but some grinding aids have a good effect on clinker grinding, and the effect is not ideal after adding mixed materials

Some grinding aids contain CI-, which has a corrosion effect on steel bars and has a low safety factor

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