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Cement grinding aid and preparation method thereof

A cement grinding aid and solution technology, which is applied in the field of cement additives, can solve the problem that the grinding effect of grinding materials cannot be maximized, and achieve the effect of improving the adhesion effect

Inactive Publication Date: 2018-09-04
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a cement grinding aid and a preparation method thereof, which can solve the problem that the existing cement grinding aid cannot fully improve the adhesion effect between the grinding materials and cause the grinding effect of the materials to be unable to achieve the best. question

Method used

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  • Cement grinding aid and preparation method thereof

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Effect test

Embodiment 1

[0016] Embodiment 1 - the preparation method of cement grinding aid

[0017] It uses the following raw materials:

[0018] 20kg of triethanolamine, 12kg of calcium formate solution, 5kg of supersaturated urea solution, 4kg of polyethylene glycol, 1kg of sodium citrate, 2kg of molasses, and 20kg of water;

[0019] Its preparation method is as follows: first stir and mix triethanolamine, calcium formate solution, sodium citrate, molasses and water, then heat to 105°C, and stir at constant temperature for 60 minutes; then, cool down to 40°C, add supersaturated urea solution and polyethylene glycol Diol, and continue stirring at constant temperature for 30min.

Embodiment 2

[0024] Embodiment 2——the preparation method of cement grinding aid

[0025] It uses the following raw materials:

[0026] 22kg of triethanolamine, 11kg of calcium formate solution, 2kg of supersaturated urea solution, 1kg of polyethylene glycol, 3kg of sodium citrate, 3kg of molasses, and 22kg of water;

[0027] Its preparation method is as follows: first stir and mix triethanolamine, calcium formate solution, sodium citrate, molasses and water, then heat to 110°C, and stir at constant temperature for 50 minutes; then, cool down to 45°C, add supersaturated urea solution and polyethylene glycol Diol, and continue stirring at constant temperature for 20min.

Embodiment 3

[0032] Embodiment 3——the preparation method of cement grinding aid

[0033] It uses the following raw materials:

[0034] Triethanolamine 25kg, calcium formate solution 10kg, supersaturated urea solution 4kg, polyethylene glycol 2kg, sodium citrate 2kg, molasses 2.5kg, water 28kg;

[0035] Its preparation method is as follows: first stir and mix triethanolamine, calcium formate solution, sodium citrate, molasses and water, then heat to 120°C, and stir at constant temperature for 40 minutes; then, cool down to 48°C, add supersaturated urea solution and polyethylene glycol Diol, and continue stirring at constant temperature for 25min.

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Abstract

The invention discloses a cement grinding aid and a preparation method thereof. The cement grinding aid is prepared from the following raw materials in parts by weight: 20-30 parts of triethanolamine,10-15 parts of a calcium formate solution, 2-6 parts of a supersaturated urea solution, 1-5 parts of polyethylene glycol, 1-5 parts of sodium citrate, 2-4 parts of molasses and 20-30 parts of water.The preparation method comprises the following steps: mixing triethanolamine, calcium formate solution, sodium citrate, molasses and water, heating to a temperature of 105-130 DEG C, and stirring at aconstant temperature for 30-60 minutes; cooling to 40-50 DEG C, adding the supersaturated urea solution and polyethylene glycol, and continuously stirring at a constant temperature for 15-30 minutes.The supersaturated urea solution and polyethylene glycol are added, an adhesion effect of cement in materials in the grinding process is improved by utilizing an effect achieved by combining the twocomponents, and the distribution and form of material particles can be regulated, so that an effect of grinding the cement materials is achieved.

Description

technical field [0001] The invention relates to the technical field of cement additives, in particular to a cement grinding aid. Background technique [0002] In the grinding process of cement clinker, a small amount of additional substances (liquid or solid substances) are added. Cement grinding aid is a chemical additive to improve the effect and performance of cement grinding, which can significantly increase the output of cement table, each Improve the strength of aged cement 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 p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/28C04B7/52C04B103/52
CPCC04B40/0039C04B7/52C04B2103/52C04B24/122C04B24/04C04B24/126C04B24/28C04B24/06C04B18/24
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