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Novel powdery cement grinding aid and preparation method thereof

A cement grinding aid and powder technology, which is applied in the field of new powder cement grinding aid and its preparation, can solve the problems of powder cement grinding aid with many ingredients, cement strength enhancement effect is not obvious, and cement clinker consumption is large To achieve the effect of increasing the economic benefits of the enterprise, reducing the power consumption of grinding, and reducing the fineness of powder particles

Inactive Publication Date: 2019-10-22
湖南格林朗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the problems in the prior art that the amount of cement clinker is large, the cement strength enhancement effect is not obvious, the powder cement grinding aid has many ingredients and many preparation steps, and the cost is high, and the powder cement grinding aid has more advantages. Good grinding effect and stable performance

Method used

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  • Novel powdery cement grinding aid and preparation method thereof
  • Novel powdery cement grinding aid and preparation method thereof
  • Novel powdery cement grinding aid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of the new powder cement grinding aid: Weigh 1kg of diethanol monoisopropanolamine raw material into the special reaction kettle, slowly add 1kg of hydrochloric acid while stirring, and control the addition time of hydrochloric acid within 10-15min Completed, after the addition of hydrochloric acid is completed, stir for another 10-15min to obtain a surfactant.

[0022] Weigh 1 kg of the above-mentioned surfactant and add it to 1 kg of water and stir evenly, then add 0.04 g of foaming agent under stirring until it is completely dissolved, and continue stirring for 5-10 minutes until it is uniform to obtain a synergistic solution.

[0023] Take by weighing 4.85kg of fly ash and 3kg of Yuanming powder and add them to the blender and stir well, then add 0.15kg of the above-mentioned synergist, mash the block formed after adding the synergist, and stir well, Then add 2.0kg of sulphoaluminate cement and stir well to obtain powder cement grinding aid. ...

Embodiment 2

[0030] The preparation method of the new powder cement grinding aid: Weigh 3kg of diethanol monoisopropanolamine raw material into the special reaction kettle, slowly add 2kg of hydrochloric acid while stirring, and control the addition time of hydrochloric acid within 10-15min Completed, after the addition of hydrochloric acid is completed, stir for another 10-15min to obtain a surfactant.

[0031] Weigh 1 kg of the above-mentioned surfactant and add it to 1 kg of water and stir evenly, then add 0.04 g of foaming agent under stirring until it is completely dissolved, and continue stirring for 5-10 minutes until it is uniform to obtain a synergistic solution.

[0032] Weigh 4.0kg of fly ash and 3.5kg of Yuanming powder, add them to the mixer and stir well, then add 0.2kg of the above-mentioned synergist, mash the block formed after adding the synergist, and stir well , then add 2.3kg of sulphoaluminate cement, and stir well to get the powder cement grinding aid.

[0033] Mix ...

Embodiment 3

[0038]The preparation method of the new powder cement grinding aid: Weigh 2kg of diethanol monoisopropanolamine raw material into the special reaction kettle, slowly add 1kg of hydrochloric acid while stirring, and control the addition time of hydrochloric acid within 10-15min Completed, after the addition of hydrochloric acid is completed, stir for another 10-15min to obtain a surfactant.

[0039] Weigh 1 kg of the above-mentioned surfactant and add it to 1 kg of water and stir evenly, then add 0.04 g of foaming agent under stirring until it is completely dissolved, and continue stirring for 5-10 minutes until it is uniform to obtain a synergistic solution.

[0040] Weigh 6.0kg of fly ash and 2.5kg of Yuanming powder, add them to the mixer and stir well, then add 0.1kg of the above-mentioned synergist, mash the block formed after adding the synergist, and stir well , then add 1.4kg of sulphoaluminate cement, and stir well to get the powder cement grinding aid.

[0041] Mix 1...

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Abstract

The invention discloses a novel powdery cement grinding aid, and relates to the field of building materials. The novel powdery cement grinding aid comprise, by weight, 40-60 parts of fly ash, 14-23 parts of sulphoaluminate cement, 25-35 parts of anhydrous sodium sulfate and 1-2 parts of a synergistic solution, wherein the synergistic solution is prepared by a simple chemical reaction of diethanolmonoisopropanolamine, hydrochloric acid, a foaming agent and water. The invention also discloses a preparation method of the novel powdery cement grinding aid. The novel powdery cement grinding aid can effectively improve the particle fineness of the powder, increase the output per machine-hour of a grinding machine, increase the strength of the cement and reduce the use amount of cement clinker,and has the advantages of good grinding dispersibility, good grinding aiding effect, simplicity in processing and preparation, low cost and stable performances.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a novel powder cement grinding aid and a preparation method thereof. Background technique [0002] The cement production process is referred to as "two grinding and one burning", namely raw material grinding, kiln calcination and cement grinding. Among them, cement grinding is the process link with the highest energy consumption in the cement production process, accounting for 60% of the power consumption of the entire production process. -70%. During the cement grinding process, nearly 95% of the energy disappears as heat dissipation. When the cement fineness reaches a certain level, the efficiency of cement powder selection decreases due to the agglomeration of fine particles, which leads to the deterioration of the grinding condition and the grinding efficiency. A sharp decline. When cement production enterprises produce cement, in order to solve the p...

Claims

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Application Information

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IPC IPC(8): C04B24/12C04B103/52
CPCC04B40/0039C04B2103/52C04B7/32C04B22/147C04B24/122C04B22/122
Inventor 文伯才文柏贞胡灏邓阳刘军峰
Owner 湖南格林朗科技有限公司
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