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Low-alkali composite multi-functional cement grinding aid and preparation method thereof

A kind of cement grinding aid, multifunctional technology, applied in the preparation of low-alkali type composite multi-functional cement grinding aid, the field of low-alkali type composite multi-functional cement grinding aid, can solve problems such as difficulty of grinding aid, achieve improvement The effect of fluidity, workability improvement, strong acid and alkali resistance

Inactive Publication Date: 2010-05-19
湖北统领科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is very difficult for general grinding aids to achieve the above three purposes at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First inject 45% water into the reaction kettle, heat it to 45-48°C, add 5% anhydrous calcium chloride, stir for 5-10 minutes, after confirming that there is no precipitation, then add 5% sodium thiosulfate, After stirring for 10 minutes, add 3% calcium lignosulfonate, add 5% sodium dodecylsulfonate and 8% xylitol after confirming that there is no precipitation and completely dissolve, add 12 % triisopropanolamine and 18% triethanolamine, stirred for 3 hours, left at room temperature, filtered to remove the precipitate, pumped into the storage tank and stored for ≥12 hours, the finished liquid grinding aid can be shipped.

Embodiment 2

[0030] First inject 41% magnetic water into the reaction kettle and heat it to 45-48°C, then add 3% anhydrous calcium chloride and stir at a medium speed for 5-10 minutes, and then add 7% thiol after confirming that it is completely dissolved without sediment Stir with sodium sulfate at medium speed for 15-20 minutes, then add 2% calcium lignosulfonate and stir for 20 minutes at medium speed, and continue stirring for 10 minutes after confirming that there is no precipitation, add 7% sodium dodecylsulfonate and 5% Xylitol, stirring at an appropriate speed for 10 minutes, then adding 17% triisopropanolamine and 15% triethanolamine, stirring at a medium speed for 2 hours, stirring at a slow speed for 1 hour, cooling to room temperature and filtering off the precipitate, After being pumped into the storage tank and stored for 12 hours, it becomes the finished liquid grinding aid.

Embodiment 3

[0032] First inject 50% ionized water into the reaction kettle and heat it to 45-48°C, then add 4% anhydrous calcium chloride and stir for 5-10 minutes at medium speed, confirm that it is completely dissolved, then add 7% sodium thiosulfate at medium speed After stirring for 10 minutes, add 3% calcium lignosulfonate and stir for 20 minutes, confirm that it is completely dissolved without precipitation and continue stirring for 10 minutes, then add 5% sodium dodecylsulfonate and 6% xylitol, and stir at a higher speed After 10 minutes, add 14% triisopropanolamine and 11% triethanolamine, stir at a medium speed for 2 hours, then stir at a slow speed for 1 hour, cool to room temperature, filter out the precipitate, and pump it into a storage tank for 12 minutes. Hours later, the finished liquid grinding aid is ready.

[0033] When using, pay attention to the following items:

[0034] 1. Clarify the purpose of adding grinding aids, which is to focus on increasing production, incre...

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PUM

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Abstract

The invention relates to a low-alkali composite multi-functional cement grinding aid and a preparation method thereof. The cement grinding aid contains 5-25 percent of trolamine, 5-20 percent of triisopropanolamine, 3-10 percent of xylitol, 3-10 percent of dodecyl sodium sulfate, 3-15 percent of hyposulphite, 1-5 percent of calcium lignosulphonate, 3-11 percent of anhydrous calcium chloride and 25-50 percent of water. The grinding aid has multiple functions under the action of the effective mechanism of the grinding aid components. Compared with the prior art, the invention can greatly reduce the wrought material dosage, increase the addition of industrial slag, lower the product cost, stabilize the product quality, improve the workability of cement and enable the cement to have higher corrosion resistance and acid and alkaline resistance. The production process is simple, and the products have long preservation period.

Description

technical field [0001] The invention relates to an additive used in the grinding process of cement production, in particular to a low-alkali composite multifunctional cement grinding aid. The invention also relates to a preparation method of the low-alkali composite multifunctional cement grinding aid. It is suitable for cement manufacturers, and it is used when improving the cement grinding process, improving the performance of cement products, and reducing the cost of cement production. Background technique [0002] In the grinding process of cement production enterprises, due to the collision and friction of materials between the grinding bodies in the ball mill, electrostatic adsorption is generated, so that the materials wrap the grinding bodies, the inner lining board and the partition board of the mill, resulting in material blockage and grinding. The effect is reduced. Therefore, in the grinding process of cement materials, cement grinding aids should be added, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
CPCC04B2111/20C04B2111/23C04B2103/52C04B2103/61C04B2111/1025C04B40/0039
Inventor 李正国汪亚
Owner 湖北统领科技有限公司
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