A chlorine-free high-efficiency cement grinding aid

A cement grinding aid and high-efficiency technology, which is applied in the field of chlorine-free high-efficiency cement grinding aids, can solve the problems of the effect of grinding aids, the adverse effects of cement performance, and the narrow adaptation surface of grinding aids, etc., and achieve good grinding aids. , increase the content, reduce the effect of usage

Active Publication Date: 2016-08-17
GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The grinding aids currently used in practice mainly have the following deficiencies. One is that the substances such as chloride salts contained have adverse effects on cement performance; The adaptability is narrow and the volatility is large
The above-mentioned deficiencies greatly affect the actual use effect of grinding aids, which limits the application of grinding aids to a certain extent.

Method used

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  • A chlorine-free high-efficiency cement grinding aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take the following raw materials by weight proportioning:

[0016] 10kg of polyether, 8kg of diethanol monoisopropanolamine, 3kg of triethanolamine, 4kg of sodium carboxymethyl cellulose, 1kg of sodium lignosulfonate, and 12kg of papermaking black liquor were mixed and stirred for 30 minutes to obtain a cement grinding aid product.

Embodiment 2

[0018] Weigh the following raw materials according to the proportion by weight: polyether 12kg, diethanol monoisopropanolamine 6kg, triethanolamine 5kg, sodium carboxymethylcellulose 2kg, sodium lignosulfonate 2kg, papermaking black liquor 8kg, mix and stir for 30 The cement grinding aid product can be obtained in minutes.

Embodiment 3

[0020] Weigh the following raw materials according to the weight ratio: polyether 10kg, diethanol monoisopropanolamine 8kg, triethanolamine 4kg, sodium carboxymethylcellulose 3kg, sodium lignosulfonate 2kg, papermaking black liquor 10kg, mix and stir for 30 The cement grinding aid product can be obtained in minutes.

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PUM

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Abstract

The invention discloses an efficient chloride-free cement grinding aid. The efficient chloride-free cement grinding aid is prepared from the following ingredients in parts by weight: 10-12 parts of polyether, 6-8 parts of diacetal monoisopropanolamine, 3-5 parts of triethanolamine, 2-4 parts of sodium carboxymethyl cellulose, 1-2 parts of sodium lignosulfonate and 8-12 parts of papermaking black liquor. Compared with the products in the prior art, the efficient chloride-free cement grinding aid has the advantage that the 3-day compressive strength and 28-day compressive strength can be obviously improved under the condition of different dosages.

Description

technical field [0001] The invention belongs to the technical field of cement production and processing, and in particular relates to a chlorine-free high-efficiency cement grinding aid. Background technique [0002] my country is a big cement producing country, and its cement output ranks first in the world for many years. However, the key problem restricting the development of my country's cement industry is the high energy consumption and low utilization rate in the cement grinding stage. The cement industry is an industry with high energy consumption and high pollution, and a key industry for energy conservation and emission reduction. To solve such problems, in addition to improving equipment and technical processes, it is an effective way to add a small amount of cement grinding aids in the grinding process. [0003] Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of ceme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B24/18C04B24/12C04B24/32C04B103/52
Inventor 尹丹黄煌陈威王恒阮长泰
Owner GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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