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Molasses-based cement grinding aid and preparation method thereof

A cement grinding aid and molasses technology, which is applied in the field of cement process admixtures, can solve the problems of high raw material prices and low cost performance, and achieve the effects of low raw material prices, increased cement strength, and improved economic and social benefits

Active Publication Date: 2013-11-06
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

Therefore, the price of raw materials is high, and the cost performance of the product is low, and it is only a normal temperature mixture made of several chemical raw materials through simple physical compounding.

Method used

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  • Molasses-based cement grinding aid and preparation method thereof
  • Molasses-based cement grinding aid and preparation method thereof

Examples

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Effect test

Embodiment 1

[0021] A molasses-based cement grinding aid, its main components by weight are 60 parts of molasses, 10 parts of caustic soda solution, 8 parts of triethanolamine, 15 parts of glycerol and 8 parts of sodium formate solution; the mass concentration of caustic soda solution is 50%, The mass concentration of sodium formate solution is 40%.

[0022] Preparation method, the steps are as follows:

[0023] (1) Mix molasses and caustic soda solution, stir, heat to 60°C, and keep warm for 4 hours;

[0024] (2) Stop heating, then add triethanolamine, glycerol, and sodium formate solution, stir evenly, and obtain.

Embodiment 2

[0026] A molasses-based cement grinding aid, its main components by weight are 55 parts of molasses, 12 parts of caustic soda solution, 10 parts of triethanolamine, 17 parts of glycerol and 10 parts of sodium formate solution; the mass concentration of caustic soda solution is 50%, The mass concentration of sodium formate solution is 40%.

[0027] Preparation method, the steps are as follows:

[0028] (1) Mix molasses and caustic soda solution, stir, heat to 90°C, and keep warm for 2 hours;

[0029] (2) Stop heating, then add triethanolamine, glycerol and sodium formate solution, stir evenly, and obtain.

Embodiment 3

[0031] A molasses-based cement grinding aid, its main components by weight are 70 parts of molasses, 15 parts of caustic soda solution, 5 parts of triethanolamine, 5 parts of glycerol and 8 parts of sodium formate solution; the mass concentration of caustic soda solution is 50%, The mass concentration of sodium formate solution is 40%.

[0032] Preparation method, the steps are as follows:

[0033] (1) Mix molasses and caustic soda solution, stir, heat to 70°C, and keep warm for 4 hours;

[0034] (2) Stop heating, then add triethanolamine, glycerol and sodium formate solution, stir evenly, and obtain.

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Abstract

The invention relates to a molasses-based cement grinding aid and a preparation method thereof. The molasses-based cement grinding aid comprises the following components, by weight, 50-70 parts of molasses, 10-15 parts of a sodium hydroxide solution, 5-10 parts of triethanolamine, 5-20 parts of glycerol and 5-12 parts of a sodium formate solution. According to the molasses-based cement grinding aid of the invention, the cement strength is obviously improved and the cement ball mill output is improved by 10-15%; or the cement clinker proportion is reduced by 5-7% and the mixing amount of a cement mixture is correspondingly increased by 5-7% when the cement strength is maintained under same conditions.

Description

technical field [0001] The invention relates to a cement grinding aid, in particular to a molasses-based cement grinding aid and a preparation method thereof, belonging to the technical field of cement process admixtures. Background technique [0002] Cement grinding aids are process admixtures used to increase cement mill output, reduce cement grinding power consumption or / and increase cement fineness (grinding aid), or / and improve cement quality (for example: significantly increase cement strength) . Its addition amount does not exceed 0.5% of the cement mass. [0003] The equipment used in cement grinding operations is mainly ball mills, and the energy utilization rate of ball mills is less than 5%. The cement grinding operation consumes a large amount of electric energy, accounting for about 35% of the total electric energy consumption of cement production; moreover, the production of cement clinker as a semi-finished product of cement production needs to consume a lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B22/06C04B103/52
Inventor 王峰尹方勇周俊华
Owner 山东天汇科技有限公司