Cement grinding aid and preparation method thereof

A cement grinding aid and anhydrous sodium sulfate technology, applied in the field of cement additives, can solve the problems of unsatisfactory cement quality and performance, low energy utilization rate, etc., to reduce cement agglomeration, reduce grinding power consumption, reduce The effect of delivery costs

Inactive Publication Date: 2008-02-20
洛阳万顺建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the cement production process, the crushing and grinding link consumes the most energy in the entire production link, and also has the lowest energy utilization rate. In the grinding process, full grinding, sticky balls, and wall hanging are easy to occur and affect the grinding efficiency. Adding grinding aids during the grinding process can improve the grinding efficiency of cement, reduce grinding power consumption and grinding costs, increase the fluidity of cement, and improve the quality of cement; while most cement grinding aids currently on the market, Although some can increase cement production, they are not ideal in terms of cement quality and performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0027] Select raw materials according to weight ratio: 20% triethanolamine, 10% triisopropanolamine, 15% ethylene glycol, 5% propylene glycol, 35% water, 3% sodium dodecylbenzenesulfonate, 9% lignin, no Sodium sulfate water 3%;

[0028] Inject 35% water into the reaction kettle and heat it to 40-50°C for later use; add 3% sodium dodecylbenzenesulfonate and stir for 15 minutes; add 3% anhydrous sodium sulfate and stir for 10 minutes, then add 9% wood Stir for 30 minutes; filter the material in the reactor with a 150 mesh screen; add 15% ethylene glycol, 5% propylene glycol and stir for 20 minutes; add 20% triethanolamine, 10% triisopropanolamine and stir for 30 minutes, namely The product cement grinding aid is obtained.

Embodiment approach 2

[0030] Select raw materials according to weight ratio: 15% triethanolamine, 25% triisopropanolamine, 10% ethylene glycol, 6% propylene glycol, 30% water, 1% sodium dodecylbenzenesulfonate, 8% lignin, no Sodium sulfate water 5%;

[0031] Inject 30% water into the reaction kettle and heat it to 40-50°C for later use; add 1% sodium dodecylbenzenesulfonate and stir for 15 minutes; add 5% anhydrous sodium sulfate and stir for 10 minutes, then add 8% wood Stir for 30 minutes; filter the material in the reactor with a 150 mesh screen; add 10% ethylene glycol, 6% propylene glycol and stir for 20 minutes; add 15% triethanolamine, 25% triisopropanolamine and stir for 30 minutes, namely The product cement grinding aid is obtained.

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PUM

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Abstract

The invention discloses a cement grinding aid and a preparation method thereof. Raw materials of the cement grinding aid consists of 10-30 percent of triethanolamine, 12-30 percent of tirisopropanolamine, 5-20 percent of ethylene glycol, 3-10 percent of propanediol, 15-40 percent of water, 1-5 percent of sodium dodecyl benzene sulfonate, 3-10 percent of lignin and 2-5 percent of anhydrous sodium sulfate; water is poured into a reactor and heated to 40-50 DEG C to be reserved; the sodium dodecyl benzene sulfonate is added to be stirred for 15min; the anhydrous sodium sulfate is added and stirred for 10min, then the lignin is added and stirred for 30min; materials in the reactor are filtered by a 150 mesh screen; the ethylene glycol and the propanediol are added and stirred for 20min; the triethanolamine and the tirisopropanolamine are added and stirred for 30min and the grinding aid products are obtained. The cement grinding aid can improve grinding efficiency and early and later strength of cement and reduce cement cost.

Description

technical field [0001] The invention belongs to the technical field of cement additives, in particular to a cement grinding aid and a preparation method thereof. Background technique [0002] At present, in the field of cement industry, cement grinding aids have been widely used in countries all over the world. In the cement production process, the crushing and grinding link consumes the most energy in the entire production link, and also has the lowest energy utilization rate. In the grinding process, full grinding, sticky balls, and wall hanging are easy to occur and affect the grinding efficiency. Adding grinding aids during the grinding process can improve the grinding efficiency of cement, reduce grinding power consumption and grinding costs, increase the fluidity of cement, and improve the quality of cement; while most cement grinding aids currently on the market, Although some can increase cement output, they are not ideal in terms of cement quality and performance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/52
CPCC04B40/0039
Inventor 白文利
Owner 洛阳万顺建材有限公司
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