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Efficient cement grinding aid

A cement grinding aid and high-efficiency technology, applied in the field of high-efficiency cement grinding aid, can solve the problems of affecting the quality of cement, increasing the grinding cost, and increasing the amount of mixing, so as to improve the cement grinding efficiency, improve the grinding efficiency, expand the The effect of using the range

Active Publication Date: 2015-03-11
天瑞集团南召水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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.
[0003] There are two types of grinding aids available in the market, liquid and powder, among which the liquid grinding aid effect is better, and the early strength and strengthening effects are not obvious; obvious
At present, liquid grinding aids are commonly used in the market, because liquid grinding aids have good uniformity and relatively stable performance, but the existing cement liquid grinding aids have low grinding efficiency, and more liquid needs to be added when grinding cement Grinding aids increase the cost of grinding and at the same time affect the quality of cement produced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh the following raw materials by weight percentage: 10% triethanolamine, 20% propylene glycol, 10% butanediol, 15% hexanediol, 5% hydroxypropyl methylcellulose, 1% graphite with a particle size of 1 μm, twelve Sodium alkylbenzene sulfonate 0.02%, water 38.98%, mixed, forced mechanical stirring to get the product.

Embodiment 2

[0022] Weigh the following raw materials by weight percentage: 12% triethanolamine, 18% propylene glycol, 12% butanediol, 8% hexanediol, 9% methyl cellulose, 1.8% graphite with a particle size of 2 μm, dodecylbenzene Sodium sulfonate 0.03%, water 39.17%, mixed, forced mechanical stirring to get the product.

Embodiment 3

[0024] Weigh the following raw materials by weight percentage: 13% triethanolamine, 15% propylene glycol, 13% butanediol, 10% hexanediol, 7% hydroxypropyl methylcellulose, 1.5% graphite with a particle size of 3 μm, twelve Sodium alkylbenzene sulfonate 0.04%, water 40.46%, mixed, forced mechanical stirring to get the product.

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Abstract

The invention relates to the technical field of cement additives, in particular to an efficient cement grinding aid which is prepared from the following raw materials in weight percentage: 10-15% of triethanolamine, 10-20% of propylene glycol, 10-15% of butanediol, 5-15% of hexanediol, 5-10% of water holding cellulose, 1-2% of graphite, 0.02-0.06% of sodium dodecyl benzene sulfonate and the balance of water. The efficient cement grinding aid is applicable to the field of cement grinding assistance. When cement is ground and the efficient cement grinding aid is added, the cement grinding efficiency can be greatly improved, and the cement strength can be improved; the efficient cement grinding aid has certain delayed coagulation function, and triethanolamine is replaced by part of alcohol, so that the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of cement admixtures, in particular to a high-efficiency 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. Cement prices are sluggish, raw materials and energy prices are rising, and competition in the industry is intensifying, which has stretched the profitability of cement enterprises. 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 efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
Inventor 于芳
Owner 天瑞集团南召水泥有限公司
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