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Cement grinding aid for improving grinding effect and preparation method of cement grinding aid

A cement grinding aid and grinding technology, which is applied in the field of building materials, can solve problems such as poor cement dispersion, and achieve the effect of improving cement dispersion and cement grinding effect

Inactive Publication Date: 2018-11-20
浙江长盈建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alcohol amine compounds are usually added to cement grinding aids. Although alcohol amine compounds can significantly improve the early and late strength of cement, they have poor dispersibility to cement, and it is urgent to improve the shortcomings of cement dispersibility, so as to improve cement grinding. Effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] In an environment of 20 degrees Celsius, first add 53kg of water to the mixing kettle, then add and fully dissolve 12kg of industrial salt, 3kg of sodium bicarbonate, 1kg of soda, 2kg of sodium nitrite, 2kg of urea, 3kg of sodium lignosulfonate, 6kg of triethanolamine, 11kg of complex alcohol amine, 5kg of glycerin, and 2kg of sugar were stirred until they were all dissolved, and left to stand for 12 hours to obtain a cement grinding aid for improving the grinding effect.

Embodiment 2

[0014] In an environment of 25 degrees Celsius, first add 55kg of water to the mixing kettle, then add and fully dissolve 12kg of industrial salt, 2kg of sodium bicarbonate, 2kg of soda, 1kg of sodium nitrite, 1kg of urea, 2kg of sodium lignosulfonate, 7kg of triethanolamine, 12kg of complex alcohol amine, 5kg of glycerin, and 1kg of sugar were stirred until they were all dissolved, and left to stand for 12 hours to obtain a cement grinding aid for improving the grinding effect.

Embodiment 3

[0016] In an environment of 30 degrees Celsius, first add 57kg of water to the mixing kettle, then add and fully dissolve 11kg of industrial salt, 1kg of sodium bicarbonate, 2kg of soda, 1kg of sodium nitrite, 1kg of urea, 1kg of sodium lignosulfonate, 8 kg of triethanolamine, 13 kg of compound alcohol amine, 4 kg of glycerin, and 1 kg of sugar were stirred until they were all dissolved, and left to stand for 12 hours to obtain a cement grinding aid for improving the grinding effect.

[0017] The cement grinding aids for improving the grinding effect of the above-mentioned embodiments 1-3 were added to the cement at a blending ratio of 0.08% respectively, and the cement strength test was carried out. The strength of the early stage (3d) of the cement increased by 4.7-6.1Mpa, and the late (28d) When the strength is increased by 9.6-12.0Mpa, it also improves the shortcomings of cement dispersion and improves the cement grinding effect. After application, the grinding efficiency c...

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PUM

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Abstract

The invention provides a cement grinding aid for improving a grinding effect and a preparation method of the cement grinding aid. The cement grinding aid is characterized by being prepared from the following components in parts by weight: 53-57 parts of water, 11-12 parts of industrial salt, 1-3 parts of anhydrous sodium sulfate, 1-2 parts of sodium thiosulfate, 1-2 parts of sodium nitrite, 1-2 parts of urea, 1-3 parts of sodium lignin sulfonate, 6-8 parts of triethanolamine, 11-13 parts of composite alkylol amine, 4-5 parts of glycerinum and 1-2 parts of sugar. By adopting the cement grindingaid, the cement dispersibility can be remarkably improved, and the cement grinding effect can be improved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a cement grinding aid for improving the grinding effect and a preparation method thereof. Background technique [0002] In the cement industry, the energy consumption of the grinding process is very high. Every ton of cement needs to grind about three tons of various materials. The power consumption of the grinding process accounts for about 60-70% of the total power consumption of cement production. About 97% of the energy consumed in the grinding process becomes heat energy and is wasted. In order to reduce energy consumption, save energy, and improve grinding efficiency, it is one of the effective methods to add a small amount of grinding aids to improve grinding efficiency during the grinding process. The use of cement grinding aids can significantly improve the dispersion of cement during grinding, improve the grinding efficiency, improve the quality of cement production, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
CPCC04B40/0039C04B2103/52C04B22/124C04B22/147C04B22/14C04B22/085C04B24/126C04B24/18C04B24/122C04B24/02C04B24/10
Inventor 顾会良钱如伟顾树美沈军刘海峰沈建荣
Owner 浙江长盈建材科技有限公司
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