Composite output increasing type grinding aid and preparation method thereof

A grinding aid and composite technology, applied in the field of grinding aid in cement production, can solve the durability hazards of cement resistance to sulfate corrosion, steel corrosion resistance, alkali aggregate reaction, etc., without improving cement grinding efficiency and cement fluidity. and other problems, to achieve the effect of improving the grinding environment, conducive to storage and transportation, and stable volume

Inactive Publication Date: 2014-07-23
张恩源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of grinding aid can improve the early strength of cement, but it has brought potential harm to the durability of cement such as sulfate corrosion resistance, steel corrosion resistance, and alkali-aggregate reaction resistance, and this type of grinding aid does not improve cement grinding. Function of Efficiency and Cement Fluidity

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] The present invention is described below in conjunction with specific embodiment:

[0016] Now take the production of 1000 kg of compound grinding aid for increasing production as an example:

[0017] Use a stirring pot with a capacity of about 3000 kg. Before production, be sure to wash the stirring pot with water; then add 298 kg of water to the stirring pot, add 2 kg of diethanol monoisopropanolamine, and stir until the diethanol Completely dissolve monoisopropanolamine; then add 20 kg of glacial acetic acid and stir until completely dissolved. After dissolving, add 240 kg of triethanolamine and 440 kg of triisopropanolamine in sequence, and stir for about 35 minutes to complete the preparation.

[0018] use

[0019] This product is especially recommended for the grinding of the following materials:

[0020] 1. Ordinary cement (especially slag and fly ash as composite materials);

[0021] 2. Pure Portland cement, composite cement;

[0022] performance

[0023...

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PUM

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Abstract

The invention discloses a composite output increasing grinding aid, which is especially designed for assisting the grinding of common silicate cement, and belongs to the field of grinding assistance in cement production. The grinding aid is composed of the following raw materials: triethanolamine, triisopropanolamine, diethanolisopropanolamine, propylene glycol, glacial acetic acid, and water. The preparation method of the grinding aid comprises the following steps: washing a stirring boiler with water before the production, adding water into the stirring boiler, adding diethanolisopropanolamine, stirring until the diethanolisopropanolamine is totally dissolved; adding glacial acetic acid, stirring until the glacial acetic acid is totally dissolved; then orderly adding triethanolamine, propylene glycol, and triisopropanolamine; and finally stirring for 30 to 40 minutes so as to obtain the grinding aid. The grinding aid can improve the endurance and corrosion resistance of cement concrete products, which have the advantages of more stable volume, lower hydration heat, and better construction property. After the grinding aid is mixed into cement, the average particle size of the cement is prominently reduced, the content of fine particles is prominently increased, the particle shape is basically not changed, the roundness of the particles is increased, the repose angle is prominently reduced, and the fluidity is enhanced.

Description

technical field [0001] The invention relates to a composite production-increasing grinding aid and a preparation method thereof, belonging to the field of cement production grinding aids, and is a composite cement grinding aid specially designed for ordinary Portland cement grinding aids. Background technique [0002] In the cement production process, when the cement particles are ground to an average particle size of 14 μm or less, they will agglomerate due to molecular force and electrostatic force generated by the breaking of Si-O and Ca-O bonds during the crushing process, adhering to the steel ball and lining. On the plate, the phenomenon of wrapping balls and forging appears, which reduces the grinding efficiency of the mill. In order to overcome the unfavorable factors in the cement grinding process, cement grinding aids are usually added to the cement grinding process to improve production efficiency. At present, the early strength of cement is enhanced by adding to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12C04B103/52
Inventor 张恩源
Owner 张恩源
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