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Liquid cement grinding aid

A cement grinding aid and liquid technology, applied in the field of cement manufacturing, can solve the problems of insignificant cement strengthening effect, high amount of triethanolamine, toxic components, etc., and achieve the effect of increasing cement output, low cost and obvious effect.

Inactive Publication Date: 2012-07-25
柳州宝能建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a liquid cement grinding aid, which can solve the problem of large amount of triethanolamine used in the existing liquid cement grinding aid, high cost, insignificant strengthening effect on cement with a large amount of limestone, and toxic components. question

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0017] The liquid cement grinding aid (1 ton) in this example includes raw materials with the following weight contents: 240 kg of triethanolamine, 160 kg of polyether polyol, 100 kg of molasses, 30 kg of calcium formate, 50 kg of sodium acetate, sulfide 50 kilograms of sodium sulfate, the configuration method is to weigh calcium formate, sodium acetate and sodium thiosulfate according to the above weight and add them to the reactor, add water and stir for 30 minutes, so that the raw materials are fully dissolved in water, and then add them to the reactor according to the amount Molasses, the temperature is controlled at 60°C, stirred at constant temperature for 15 minutes, then triethanolamine and polyether polyol are added into the reaction kettle according to the amount, and stirred continuously for 30 minutes, and finally a uniform mixed liquid is formed, which is the liquid cement described in the present invention Grinding aid.

Embodiment 2

[0019] The liquid cement grinding aid (1 ton) in this example includes raw materials with the following weight contents: 200 kg of triethanolamine, 120 kg of polyester polyol, 130 kg of molasses, 20 kg of calcium formate, 40 kg of sodium acetate, sulfide Sodium sulfate is 80 kg, and its configuration method is to weigh calcium formate, sodium acetate and sodium thiosulfate according to the above weight and add them to the reactor, add water and stir for 30 minutes, so that the raw materials are fully dissolved in water, and then add them to the reactor according to the amount Molasses, control the temperature at 60°C, stir at constant temperature for 15 minutes, then add triethanolamine and polyester polyol into the reaction kettle according to the amount, continue stirring for 30 minutes, and finally form a uniform mixed liquid, which is the liquid cement of the present invention Grinding aid.

Embodiment 3

[0021] The liquid cement grinding aid (1 ton) in the present embodiment includes the following raw materials by weight: 100 kilograms of triethanolamine, 100 kilograms of polyether polyol, 60 kilograms of tripropylene glycol, 120 kilograms of molasses, 30 kilograms of calcium formate, 30 kilograms of sodium acetate and 50 kilograms of sodium thiosulfate, the configuration method is to weigh calcium formate, sodium acetate and sodium thiosulfate according to the above weight and add them to the reaction kettle, add water and stir for 30 minutes, so that the raw materials are fully dissolved in water, and then Add molasses to the reaction kettle according to the amount, control the temperature at 60°C, stir at constant temperature for 15 minutes, then add triethanolamine, polyether polyol and triglyceride into the reaction kettle according to the amount, continue stirring for 30 minutes, and finally form a uniform The mixed liquid is the liquid cement grinding aid described in th...

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Abstract

The invention discloses a liquid cement grinding aid. The liquid cement grinding aid comprises the following components by weight percent: 10-24% of triethanolamine, 10-16% of polymeric polyol, 10-13% of molasses, 1-3% of calcium formate, 3-5% of sodium acetate, 5-10% of sodium thiosulfate and the balance water. Compared with the prior art, the liquid cement grinding aid has the advantages that the grain composition of a cement material is changed, the strength of cement is improved, enhancing effect of the cement mixed with a large quantity of limestone is improved obviously; the cost is lower as the using amount of triethanolamine is reduced; the cement output in the unit time is increased effectively, and the power consumption of per unit output is reduced as the mixing amount in the cement finishing process is low; the liquid cement grinding aid is green and environmental-friendly and cannot hurt people, or cannot damage buildings and the like as chloridion content is not contained.

Description

technical field [0001] The invention relates to the technical field of cement manufacture, in particular to a chemical additive additive which can improve cement grinding efficiency or reduce energy consumption without damaging cement performance. Background technique [0002] Cement grinding is an important process in cement production. It grinds materials such as cement clinker, retarder and performance adjustment materials to a suitable particle size by mechanical means, so as to meet the coagulation and hardening requirements of cement paste. In the grinding process, the material particles are gradually refined through the grinding equipment, the specific surface area increases, and the surface is charged due to the breakage of chemical bonds, and the particles will adsorb each other to form agglomerates or stick to the grinding body and the liner. The grinding efficiency is reduced and the energy consumption is increased. Cement grinding aid is an indispensable auxili...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/52
Inventor 刘超
Owner 柳州宝能建材科技有限公司
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