Grinding aid for improving flow property of mineral aggregate

A technology of flow performance and grinding aid, applied in the field of grinding aids and grinding aids that improve the flow performance of mineral materials, can solve the problems of low lubricity of grinding aids, high production cost, poor flow performance of mineral materials, etc. Low production cost, scientific method, and the effect of improving the flow properties of mineral materials

Inactive Publication Date: 2019-11-05
刘晓英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of high production cost of the existing grinding aid, low lubricity of the grinding aid, and poor flowability of the mineral material, etc., and proposes a grinding aid for improving the flowability of the mineral material, and the production cost of the grinding aid is lower Low, the production process is simpler, the dosage is low, the reinforcement effect is good, it can improve the flow performance and production efficiency of mineral materials, and is suitable for large-scale production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A grinding aid for improving the flowability of mineral aggregates, made of the following raw materials in weight percentage: 5% absolute ethanol, 3% ethylene glycol, 1% methanol, 1% sodium dibutylnaphthalene sulfonate, polymerized alcohol amine 3%, triethanolamine 5%, sugar 3%, sodium phosphate 1%, sodium lignosulfonate 1%, sorbitol 5%, sodium thiocyanate 5%, the rest is water;

[0014] The preparation method of grinding aid comprises the following steps:

[0015] (1) Weigh water and sodium thiocyanate into the reaction kettle according to the raw material ratio of the cement grinding aid, start stirring, add an appropriate amount of oleic acid during the stirring process, control the temperature to 20°C, and stir for 5 minutes;

[0016] (2) Take alcohol amine compound, ethylene glycol and sorbitol according to the raw material proportion of described cement grinding aid, and put it into the reaction kettle, start stirring, dissolving, add appropriate amount of aluminu...

Embodiment 2

[0019] A grinding aid for improving the flowability of mineral materials, made of the following raw materials in weight percentage: 10% absolute ethanol, 8% ethylene glycol, 3% methanol, 3% sodium dibutylnaphthalene sulfonate, polymerized alcohol amine 5%, triethanolamine 12%, sugar 5%, sodium phosphate 6%, sodium lignosulfonate 3%, sorbitol 20%, sodium thiocyanate 20%, the rest is water;

[0020] The preparation method of grinding aid comprises the following steps:

[0021] (1) Weigh water and sodium thiocyanate into the reaction kettle according to the raw material ratio of the cement grinding aid, start stirring, add an appropriate amount of oleic acid during the stirring process, control the temperature to 30°C, and stir for 10 minutes;

[0022] (2) Take alcohol amine compound, ethylene glycol and sorbitol according to the raw material proportion of described cement grinding aid, and put it into the reaction kettle, start stirring, dissolving, add appropriate amount of alu...

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PUM

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Abstract

The invention discloses a grinding aid for improving the flow property of mineral aggregate, and belongs to the technical field of building materials. The grinding aid is prepared from the following raw materials in percentage by weight: 5-10% of anhydrous ethanol, 3-8% of ethylene glycol, 1-3% of methanol, 1-3% of sodium dibutylnaphthalenesulfonate, 3-5% of polymeric alkylol amine, 5-12% of triethanolamine, 3-5% of white sugar, 1-6% of sodium phosphate, 1-3% of sodium lignosulfonate, 5-20% of sorbitol, and 5-20% of sodium thiocyanate. The grinding aid has a clear preparation principle, a method is scientific, compared with the prior art, the production cost of the grinding aid is lower, the production process is simpler and the mixing amount is low and the reinforcing effect is good, theflow property and production efficiency of the mineral aggregate can be improved, and the grinding aid is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a grinding aid, in particular to a grinding aid for improving the flowability of mineral materials. Background technique [0002] In the grinding process of cement clinker, adding a small amount of additional substances (liquid or solid substances) can significantly improve the grinding efficiency or reduce energy consumption without damaging the performance of cement. The chemical additives are commonly referred to as: Cement grinding aid. Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aids can greatly reduce the phenomenon of electrostatic adsorption and ball formation during the grinding process, and can reduce the tendency of re-agglomeration of ultrafine particles formed duri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/28C04B103/52
CPCC04B40/0039C04B2103/52C04B24/026C04B24/16C04B24/28C04B24/122C04B24/10C04B22/16C04B24/18C04B22/14
Inventor 刘晓英
Owner 刘晓英
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