Cement grinding aid for cement grinding and preparation method thereof

A technology of cement grinding aid and cement powder, applied in the field of cement grinding aid, can solve the problems of large dosage, poor stability of cement quality, unstable quality of grinding aid, etc. The effect of increasing cement production

Inactive Publication Date: 2018-02-02
山东天汇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a cement grinding aid for cement grinding and a preparation method thereof. The problem

Method used

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  • Cement grinding aid for cement grinding and preparation method thereof
  • Cement grinding aid for cement grinding and preparation method thereof
  • Cement grinding aid for cement grinding and preparation method thereof

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Experimental program
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preparation example Construction

[0033] The present invention also provides a preparation method of a cement grinding aid for cement grinding, comprising the following steps:

[0034] Weigh ethanolamine, polyester polyol, polyol, ethyl acetate, cellulose, talcum powder, starch, borax, glass fiber, zinc stearate, calcium lignosulfonate and add it to water, and put it under 40~50℃ Stir for 50-70 minutes, and cool down to room temperature to obtain the cement grinding aid for cement grinding.

[0035] Wherein, ethanolamine, polyester polyol, polyol, ethyl acetate, cellulose, talcum powder, starch, borax, glass fiber, zinc stearate, calcium lignosulfonate and water are all the same as above, no longer repeat.

[0036] In the above technical scheme, the process is simple and the processing is convenient, and the prepared grinding aid can improve the early strength of cement and shorten the setting time of cement, thereby realizing the improvement of grinding efficiency and output of the mill and reduction of ener...

Embodiment 1

[0039] The cement grinding aid used for cement grinding comprises the following raw materials in parts by weight:

[0040] 9 parts of triethanolamine, 6.8 parts of polyethylene adipate diol, 13 parts of ethylene glycol, 6.5 parts of ethyl acetate, 3 parts of hydroxyethyl cellulose, 19 parts of talc, 13.5 parts of carboxymethyl starch, 7.5 parts borax, 5.4 parts glass fiber, 12 parts zinc stearate, 4.4 parts calcium lignosulfonate and 105 parts water.

[0041] The preparation method of the cement grinding aid for cement grinding, comprises the following steps:

[0042] Weigh triethanolamine, polyethylene adipate glycol, ethylene glycol, ethyl acetate, hydroxyethyl cellulose, talcum powder, carboxymethyl starch, borax, glass fiber, zinc stearate, lignin Calcium sulfonate is added to water, stirred at 45°C for 60 minutes, and cooled to room temperature to obtain cement grinding aid for cement grinding.

Embodiment 2

[0044] The cement grinding aid used for cement grinding comprises the following raw materials in parts by weight:

[0045] 11 parts of N-methyldiethanolamine, 7.2 parts of polycaprolactone diol, 15 parts of diethylene glycol, 7.5 parts of ethyl acetate, 3.5 parts of hydroxypropyl methylcellulose, 20 parts of talc, 12 parts Octenylsuccinate starch, 7 parts borax, 5 parts glass fiber, 10 parts zinc stearate, 5.6 parts calcium lignosulfonate and 95 parts water.

[0046] The preparation method of the cement grinding aid for cement grinding, comprises the following steps:

[0047]Weigh N-methyldiethanolamine, polycaprolactone glycol, diethylene glycol, ethyl acetate, hydroxypropyl methylcellulose, talcum powder, octenyl succinic esterified starch, borax, glass Fiber, zinc stearate, and calcium lignosulfonate were added to water, stirred at 50°C for 50 minutes, and cooled to room temperature to obtain a cement grinding aid for cement grinding.

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Abstract

The invention discloses a cement grinding aid for cement grinding and a preparation method thereof. The cement grinding aid comprises, by weight, 8-12 parts of ethanol amine, 6-8 parts of polyester polyol, 10-18 parts of polyol, 6-8 parts of ethyl acetate, 3-5 parts of cellulose, 18-24 parts of talcum powder, 12-16 parts of starch, 7-10 parts of borax, 5-7 parts of glass fiber, 10-15 parts of zincstearate, 4-6 parts of calcium lignosulfonate and 80-120 parts of water. When the cement grinding aid prepared by adopting the above raw materials is used in the process of cement grinding, power consumption can be saved, and cement yield, mass and performance can be improved. Experiments show that by using the cement grinding agent, machine-hour yield is increased obviously, doping amount of thecement grinding aid is lowered greatly, and cement strength can be excited.

Description

technical field [0001] The invention relates to the field of cement grinding aids, in particular to a cement grinding aid for cement grinding and a preparation method thereof. Background technique [0002] Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aids can greatly reduce the phenomenon of electrostatic adsorption and ball formation during the grinding process, and can reduce the tendency of re-agglomeration of ultrafine particles formed during the grinding process. Cement grinding aids can also significantly improve the fluidity of cement, improve the grinding effect of the mill and the powder selection efficiency of the powder separator, thereby reducing the energy consumption of grinding. Cement produced with grinding aids has a lower tendency to compact and agglomerate, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/52
Inventor 周俊华尹方勇王峰王超魏岱慈田新博朱文沛
Owner 山东天汇科技有限公司
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