Improved cement grinding aid

Abstract

The invention relates to an improved cement grinding aid. The improved cement grinding aid is characterized by comprising components in parts by weight as follows: 15-25 parts of triethanolamine, 2-8 parts of polytetrafluoroethene, 3-6 parts of propylene glycol, 2-5 parts of xanthan gum, 5-10 parts of sodium nitrite, 3-8 parts of calcium lignosulfonate, 5-10 parts of sodium acetate, 5-10 parts of a water-retention material, 5-10 parts of a papermaking black liquid, 6-12 parts of industrial salt and 5-10 parts of molasses. With the adoption of the improved cement grinding aid, the grinding efficiency of a cement mill can be remarkably improved by 8%-15%, the early strength of cement can be properly increased by 2-3 MPa, and the late strength of the cement can be increased by 2-4 MPa, and the formula of the improved cement grinding aid contains no harmful ingredient and meet the requirement of environment protection; the components cooperate with one another, and the adaptability of the grinding aid is improved, so that the grinding aid is applicable to cement at different grades, the use range is widened, the grinding aiding effect is greatly improved, the machine-hour yield is also increased, the energy consumption is reduced, and the mixing amount is little and accounts for 0.02-0.05% in per ton of cement.

Description

technical field [0001] The invention relates to an enhanced cement grinding aid. Background technique [0002] Cement grinding is a necessary process and key link in cement production. Its energy consumption and electricity consumption account for 30% of the total energy consumption of cement production and more than 70% of the total electricity consumption. At present, the national low-carbon environmental protection requirements are getting higher and higher. Sluggish prices, rising prices of raw materials and energy, and fierce competition in the industry have stretched the profitability of cement companies. Therefore, energy conservation and emission reduction, development of low-carbon economy, cost reduction, and improvement of grinding aid performance are urgent problems to be solved by the cement industry. In order to reduce energy consumption and improve grinding efficiency, people usually take the following two measures: first, improve the grinding equipment and g...

AI Technical Summary

Problems solved by technology

There are still many problems in the use of grinding aids in my country, such as chloride salts bring great safety hazards to the durability of cement and concrete; the quality of grinding aids is unstable, and the amount of mixing is large, which leads to fluctuations in cement quality, etc.

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