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Compound grinding aid for cement

A grinding aid and cement technology, applied in the field of cement manufacturing, can solve the problems of single component, poor applicability, price and quality of controlled raw materials, etc., and achieve the effect of eliminating particle agglomeration, improving grinding efficiency and optimizing synergistic effect

Inactive Publication Date: 2019-01-18
颍上县永军建材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many types of grinding aid products in my country, there is no unified market norms and standards, product quality is difficult to guarantee, and there are many grinding aid products with a single component, such products are not only subject to the price and quality of raw materials, but also due to the difference, poor applicability

Method used

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  • Compound grinding aid for cement
  • Compound grinding aid for cement
  • Compound grinding aid for cement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A cement composite grinding aid, the cement grinding aid is composed of the following components in parts by weight: 12-28 parts of polyol amine, 12-28 parts of polyol, 6-13 parts of lignosulfonate, stearic acid 3-7 parts of sodium, 6-12 parts of molasses, 2-6 parts of sodium sulfate, 22-28 parts of water.

[0020] Further, polyol amine comprises triethanolamine, ethanolamine, triisopropanolamine, and the weight ratio of the three is: triethanolamine: ethanolamine: triisopropanolamine=(0.8-1):(0.8-1):( 0.5-1).

[0021] Further, polyhydric alcohol comprises diethylene glycol, ethylene glycol, glycerol, and the weight ratio of the three is: diethylene glycol: ethylene glycol: glycerol=(0.8-1):(0.2-0.6 ): (0.2-0.6).

[0022] Further, the lignosulfonate is a mixture of calcium lignosulfonate, aluminum lignosulfonate and sodium lignosulfonate, calcium lignosulfonate, aluminum lignosulfonate and sodium lignosulfonate The weight ratio of = (0.2-0.5): (0.8-1): (0.2-0.5).

...

Embodiment 2

[0026] A cement composite grinding aid, the cement composite grinding aid is composed of the following components in parts by weight: 12 parts of polyol amine, 12 parts of polyol, 6 parts of lignosulfonate, 3 parts of sodium stearate, molasses 6 parts, 2 parts of sodium sulfate, 22 parts of water.

[0027] Further, the polyol amine includes triethanolamine, ethanolamine, and triisopropanolamine, and the weight ratio of the three is: triethanolamine:ethanolamine:triisopropanolamine=1:0.8:0.5.

[0028] Further, the polyhydric alcohol includes diethylene glycol, ethylene glycol, and glycerol, and the weight ratio of the three is: diethylene glycol: ethylene glycol: glycerol=1:0.4:0.4.

[0029] Further, the lignosulfonate is a mixture of calcium lignosulfonate, aluminum lignosulfonate and sodium lignosulfonate, calcium lignosulfonate, aluminum lignosulfonate and sodium lignosulfonate The weight ratio of = 0.2:0.8:0.2.

Embodiment 3

[0031] A cement composite grinding aid, the cement composite grinding aid is composed of the following components in parts by weight: 22 parts of polyol amines, 22 parts of polyols, 10 parts of lignosulfonate, 5 parts of sodium stearate, molasses 9 parts, 4 parts of sodium sulfate, 25 parts of water.

[0032] Further, the polyol amine includes triethanolamine, ethanolamine, and triisopropanolamine, and the weight ratio of the three is: triethanolamine:ethanolamine:triisopropanolamine=0.8:0.9:0.7.

[0033] Further, the polyhydric alcohol includes diethylene glycol, ethylene glycol, and glycerol, and the weight ratio of the three is: diethylene glycol: ethylene glycol: glycerol=0.8:0.9:0.6.

[0034] Further, the lignosulfonate is a mixture of calcium lignosulfonate, aluminum lignosulfonate and sodium lignosulfonate, calcium lignosulfonate, aluminum lignosulfonate and sodium lignosulfonate The weight ratio=0.3:0.9:0.3.

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Abstract

The invention discloses a compound grinding aid for cement. The compound grinding aid comprises the following components in parts by weight: 12-28 parts of polyalcohol amine, 12-28 parts of polyalcohol, 6-13 parts of lignosulfonate, 3-7 parts of sodium stearate, 6-12 parts of molasses, 2-6 parts of sodium sulfate and 22-28 parts of water. The compound grinding aid disclosed by the invention has the beneficial effects that environment-friendly, stable and low-toxicity materials are adopted, so that better synergistic effect of all the components is ensured, the grinding-aiding requirements of all the materials at different grinding stages can be met, the optimum grinding-aiding effect is achieved, the particles are refined, the particle aggregation is eliminated and the grinding efficiencyis improved.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a cement composite grinding aid. Background technique [0002] my country is a big cement producing country, accounting for more than 50% of the world's cement production. Since the cement industry is a high-energy-consuming industry, it is facing huge pressure for energy conservation and emission reduction. In the cement production process, the energy consumption of grinding is very high, and the energy utilization rate in the grinding process is low, about 97% of the consumed energy is turned into heat energy and wasted in vain; the energy consumption of the clinker grinding process accounts for the total energy Only a small part of the energy is actually used to increase the specific surface area of ​​the material. Therefore, improving the grinding efficiency and reducing the power consumption of the grinding has become a matter of great concern to the cement industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/52
CPCC04B40/0039C04B2103/52C04B24/122C04B24/026C04B24/18C04B24/04C04B22/147C04B24/38
Inventor 闫永军
Owner 颍上县永军建材有限责任公司
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