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Cement grinding aid

A technology of cement grinding aids and polyol amines, which is applied in the field of cement grinding aids and can solve problems such as affecting cement quality and increasing water absorption of cement

Active Publication Date: 2012-03-14
广州基业长青新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most liquid grinding aid formulations have certain defects: the water absorption of cement will increase, which affects the quality of cement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Cement grinding aid comprises the following components by weight percentage:

[0017] Triethanolamine 15%, triisopropanolamine 10%, diethylene glycol 8%, modified sodium lignosulfonate 20%, water 47%.

Embodiment 2

[0019] Cement grinding aid comprises the following components by weight percentage:

[0020] 25% triethanolamine, 5% triisopropanolamine, 5% diethylene glycol, 10% modified sodium lignosulfonate, 55% water.

Embodiment 3

[0022] Cement grinding aid comprises the following components by weight percentage:

[0023] 20% triethanolamine, 15% triisopropanolamine, 10% diethylene glycol, 30% modified sodium lignosulfonate, 25% water.

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PUM

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Abstract

The invention discloses a cement grinding aid, comprising the following components, by weight: 20-40% of polyol amine, 5-10% of polyol, 10-30% of lignosulfonate and 20-65% of water. The cement grinding aid of the invention will not increase water-absorbing capacity of the cement and has good grinding assisting effect.

Description

technical field [0001] The invention relates to a cement grinding aid. Background technique [0002] In the process of cement production, when various materials are fed into the mill and then ground, there will be severe and frequent friction and impact between the materials and the materials, and between the materials and the grinding body, which will cause the materials to generate static electricity, which are charged The material will be adsorbed on the surface of the steel ball and the grinding body, causing the cement mill to have a serious phenomenon of enveloping the ball and forging; when the humidity of the additional material fed is greater than 5%, there will be a large amount of water vapor in the mill, increasing the If the humidity of the grinding material is reduced, the above-mentioned phenomenon of ball wrapping and forging will also occur. In order to solve the problem of static electricity, most manufacturers adopt the method of adding cement grinding ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
Inventor 胡鉴
Owner 广州基业长青新材料股份有限公司