A cement grinding aid

A grinding aid and cement technology, applied in the field of cement production, can solve the problems of insignificant reduction of cement production cost, poor adaptability of concrete admixtures, poor adaptability of admixtures, etc., and achieves remarkable effect of increasing production, energy saving and low price. , good adaptability

Active Publication Date: 2016-03-23
CNBM HEFEI POWDER TECH EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The main raw materials are alcohol amine surfactants such as triethanolamine, triisopropanolamine, ethylene glycol, and glycerol, which are expensive and costly for grinding aids. Although there is an effect of energy saving, the cost of cement production is reduced not obvious
[0004] (2) Poor adaptability to mixed materials
The grinding effect on slag cement and fly ash cement is particularly poor
[0005] (3) Poor adaptability to concrete admixtures

Method used

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  • A cement grinding aid
  • A cement grinding aid
  • A cement grinding aid

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A cement grinding aid enhancer, the production method of which is: inject 24kg of tap water at 45-60°C into a reaction kettle, add 8kg of sea wave, 4kg of ferric nitrate, stir evenly, then add 10kg of sulfite waste liquid, paper mill waste 18kg of liquid, 6kg of methanol, 6kg of polyacrylamide, 8kg of triethanolamine, 5kg of tetrahydroxyethylethylenediamine, 3kg of sodium humate, 5kg of ferrocene, and 3kg of compound additives were stirred evenly to obtain a cement grinding aid enhancer product.

Embodiment 2

[0027] A cement grinding aid enhancer, the production method of which is as follows: inject 21kg of tap water at 45-60°C into a reaction kettle, add 6kg of sea wave, 6kg of ferric nitrate, stir evenly, then add 12kg of sulfite waste liquid, paper mill waste Liquid 18kg, methanol 5kg, polyacrylamide 4kg, triethanolamine 11kg, tetrahydroxyethylethylenediamine 4kg, sodium humate 5kg, ferrocene 6kg, compound auxiliary agent 2kg, stir evenly, obtain cement grinding aid enhancer product .

Embodiment 3

[0029] A cement grinding aid enhancer, the production method of which is as follows: inject 17kg of tap water at 45-60°C into a reaction kettle, add 10kg of sea wave, 4kg of ferric nitrate, stir evenly, then add 10kg of sulfite waste liquid, paper mill waste Liquid 20kg, methyl alcohol 6kg, polyacrylamide 5kg, triethanolamine 10kg, tetrahydroxyethylethylenediamine 6kg, sodium humate 6kg, ferrocene 4kg, compound auxiliary agent 2kg stir evenly, obtain cement grinding aid enhancer product.

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Abstract

The invention discloses a grinding enhance for cement. The grinding enhance comprises the following raw materials by mass percent: 10-25% of waste liquor from a paper mill, 5-15% of sulfite waste liquor, 5-10% of methyl alcohol, 4-8% of polyacrylamide, 5-15% of triethanolamine, 3-8% of tetrahydroxyethyl-ethylene diamine, 3-8% of sodium humate, 4-8% of sodium thiosulfate, 3-8% of ferrocene, 3-6% of ferric nitrate, 2-4% of a compound additive, and the balance of water. The grinding enhance for the cement is suitable for grinding various cement, when the adding amount is 0.04-0.06%, the hourly output of a cement grinding mill is increased by 12-18%, and the grinding power consumption is reduced by 10-15%, meanwhile, the 3-day compressive strength of standard sand for the cement is also increased by 2-4MPa, and the 28-day compressive strength is increased by 4-7MPa.

Description

Technical field: [0001] The invention mainly relates to the field of cement production, in particular to a cement grinding aid enhancer and a preparation method thereof. Background technique: [0002] Cement production is a large power consumer, and cement grinding power consumption accounts for more than 60% of the total power consumption of cement production. At present, the annual output of cement in my country is about 2 billion tons, and the power consumption of cement grinding is about 30Kwh / t. Based on this calculation, the annual power consumption of cement grinding is as high as 60 billion kWh. If this power consumption drops by 5-10%, the national cement industry can save 3-6 billion kWh of electricity. It can be seen that reducing the power consumption of cement grinding is of great significance. The use of grinding aids is one of the effective ways to achieve this purpose. At present, a large number of grinding aids have been used in cement grinding in China. ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B24/26C04B103/52
Inventor朱春启杨春保
OwnerCNBM HEFEI POWDER TECH EQUIP CO LTD