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Cement grinding aids

A technology of cement grinding aid and ethylene glycol, which is applied in the field of cement manufacturing, can solve the problems of increased power consumption of cement output, decrease of cement output and quality, and reduction of ball milling efficiency, so as to increase cement fluidity, reduce power consumption, Favorable effect of delivery

Inactive Publication Date: 2007-08-22
胡佩龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the ball milling process of cement production, the friction between the materials and between the materials and the steel balls will cause the materials to be charged with static electricity, making the materials adsorb on the surface of the steel balls, causing ball wrapping, reducing the efficiency of ball milling, and reducing the output and quality of cement. , the power consumption per unit of cement production increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, the content (mass percentage) of each component of cement grinding aid is, triethanolamine 14%, ethylene glycol 10%, acetic acid ammonium 8%, urea 25%, unsaturated polyester resin 4%, pulp waste liquor 39%. The composition of pulp waste liquid is sodium lignin or calcium lignin 8%, NaOH or Ca(OH) 2 It accounts for 0.1%, and the rest is water. The preparation process is as follows: at a temperature of 30 degrees Celsius, filter the pulp waste liquid with a mass percentage of 39% to remove impurities, add 14% triethanolamine for homogenization time (stir well), and then add 25% urea and 8% acetic acid Amine, homogenized for 15 minutes, then added 10% ethylene glycol and 4% unsaturated polyester resin, homogenized for 20 minutes, and then stored for 24 hours to make the finished product.

Embodiment 2

[0034] Embodiment two, cement grinding aid, the content (mass percentage) of each component is: triethanolamine 20%, ethylene glycol 5%, acetic acid ammonium 10%, urea 24%, unsaturated polyester resin 4%, pulp waste Liquid 37%. The composition of pulp waste liquid is sodium lignin or calcium lignin 8%, NaOH or Ca(OH) 2 It accounts for 0.2%, and the rest is water. The preparation process is the same as in Example 1.

Embodiment 3

[0035] Embodiment three, cement grinding aid, the content (mass percentage) of each component is: triethanolamine 10%, ethylene glycol 18%, acetate ammonium 8%, urea 24%, unsaturated polyester resin 4%, pulp waste Liquid 36%. The composition of pulp waste liquid is sodium lignin or calcium lignin 8%, NaOH or Ca(OH) 2 It accounts for 0.3%, and the rest is water. The preparation process is the same as in Example 1.

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PUM

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Abstract

The cement grinding aid used for cement production consists of triethanolamine 4-20 wt%, ethylene glycol 5 -25 wt%, acetic amine 5-10 wt%, urea 22-26 wt%, unsaturated polyester resin 3-5 wt% and waste paper pulp liquid 36-44 wt%. The present invention can eliminate static electricity during cement ball milling process to raise cement yield and save electric power.

Description

Technical field [0001] The invention belongs to the field of cement manufacture, and in particular discloses the composition and content of a cement grinding aid. Background technique [0002] In the ball milling process of cement production, the friction between the materials and between the materials and the steel balls will cause the materials to be charged with static electricity, making the materials adsorb on the surface of the steel balls, causing ball wrapping, reducing the efficiency of ball milling, and reducing the output and quality of cement. , the power consumption per unit of cement output increases. In order to eliminate the static electricity carried by the material, it is necessary to add cement grinding aids to the material during the ball milling process of cement production. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cement grinding aid, which can be added into the ball milling proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/36C04B103/52
Inventor 胡佩龙
Owner 胡佩龙
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