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High-mill-temperature cement grinding aid and preparation method thereof

A cement grinding aid and dispersant technology, applied in the field of cement grinding, can solve the problems of decreased grinding efficiency of the mill, decreased output of the cement mill table, sticking balls, etc., and achieves enhanced adaptability, reduced cost, blending less effect

Inactive Publication Date: 2018-03-27
NINGXIA PAGODA CHEM CENT LAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the alcohol amine compound in the traditional cement grinding aid added in the mill is easy to volatilize and deteriorate, which seriously affects the performance of the grinding aid, reduces the grinding efficiency of the mill, and makes the cement material easy to grind. This is because the common liquid grinding aid mainly contains triethanolamine, polymer polyol, polymer alcohol amine, triethylene propanolamine, ethylene glycol, propylene glycol, glycerin, fatty acid sodium , calcium chloride, sodium chloride, sodium acetate, aluminum sulfate, calcium formate, wood calcium, wood sodium, etc.
The grindability of the material decreases with the increase of temperature. At the same time, due to the increase of temperature, the fine dust is easy to gather due to electrostatic attraction, causing sticking balls, which also reduces the grinding efficiency of the mill, resulting in cement grinding. Machine hour output drops

Method used

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  • High-mill-temperature cement grinding aid and preparation method thereof
  • High-mill-temperature cement grinding aid and preparation method thereof

Examples

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Effect test

Embodiment 1

[0015] A high grinding temperature cement grinding aid, comprising 55 parts of aliphatic sodium sulfonate, 5 parts of aluminum sulfate, 2 parts of trihydroxyethylamine, 6 parts of alcohol amines, 3 parts of Sodium tripolyphosphate, 3 parts of sodium gluconate, 1 part of dispersant, 25 parts of water, described aliphatic sodium sulfonate is a straight chain aliphatic alkyl sodium sulfonate with 18 carbon atoms, The sodium alkyl sulfonate is first hydrogenated from petroleum fractions (230-320°C) or treated with concentrated sulfuric acid to remove unsaturated hydrocarbons to obtain pure alkanes, which react with chlorine and sulfur dioxide under ultraviolet light to form monochlorine compounds, and then use It is prepared by saponification of caustic soda; the alcohol amine substance is polyethylene glycol, and the dispersant is sodium dodecylbenzenesulfonate.

[0016] A kind of preparation method of high grinding temperature cement grinding aid is characterized in that, compri...

Embodiment 2

[0020] A high grinding temperature cement grinding aid, comprising 50 parts of aliphatic sodium sulfonate, 8 parts of aluminum sulfate, 3 parts of trihydroxyethylamine, 5 parts of alcohol amines, 6 parts of Sodium tripolyphosphate, 4 parts of sodium gluconate, 0.8 parts of dispersant, 23.2 parts of water, described aliphatic sodium sulfonate is a straight-chain aliphatic alkyl sodium sulfonate with 17 carbon atoms in carbon number, The sodium alkyl sulfonate is first hydrogenated from petroleum fractions (230-320°C) or treated with concentrated sulfuric acid to remove unsaturated hydrocarbons to obtain pure alkanes, which react with chlorine and sulfur dioxide under ultraviolet light to form monochlorine compounds, and then use It is prepared by saponification of caustic soda; the alcohol amine substance is polyethylene glycol, and the dispersant is sodium dodecylbenzenesulfonate.

[0021] A kind of preparation method of high grinding temperature cement grinding aid is charact...

Embodiment 3

[0025] A high grinding temperature cement grinding aid, comprising 46 parts of aliphatic sodium sulfonate, 6 parts of aluminum sulfate, 8 parts of trihydroxyethylamine, 7 parts of alcoholamines, 8 parts of Sodium tripolyphosphate, 7 parts of sodium gluconate, 1.3 parts of dispersant, 14.7 parts of water, described aliphatic sodium sulfonate is a straight chain aliphatic alkyl sodium sulfonate with 18 carbon atoms, The sodium alkyl sulfonate is first hydrogenated from petroleum fractions (230-320°C) or treated with concentrated sulfuric acid to remove unsaturated hydrocarbons to obtain pure alkanes, which react with chlorine and sulfur dioxide under ultraviolet light to form monochlorine compounds, and then use It is prepared by saponification of caustic soda; the alcohol amine substance is polyethylene glycol, and the dispersant is sodium dodecylbenzenesulfonate.

[0026] A kind of preparation method of high grinding temperature cement grinding aid is characterized in that, co...

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Abstract

The invention relates to the field of cement grinding aids and in particular relates to a high-mill-temperature cement grinding aid and a preparation method thereof. The high-mill-temperature cement grinding aid is characterized by being prepared from the following components in parts by mass: 30 to 60 parts of a mixed solution of aliphatic sodium sulfonate and aluminum sulfate, 1 to 10 parts of triethanolamine, 5 to 10 parts of alcamines, 1 to 10 parts of sodium tripolyphosphate, 1 to 10 parts of sodium gluconate, 0.1 to 5 parts of a dispersant and 10 to 30 parts of water. By adopting the high-mill-temperature cement grinding aid provided by the invention, the surface energy of a material can be reduced and an aggregation effect generated by molecular attraction is weakened; accelerated expansion of particle cracks are facilitated when an external force acts, so that the grinding efficiency is improved and the aims of high quality, energy saving and high yield of a ball mill are realized; the fineness of cement can be reduced and the output per machine hour of the ball mill can be improved.

Description

technical field [0001] The invention belongs to the technical field of cement grinding, and in particular relates to a high grinding temperature cement grinding aid and a preparation method thereof. . Background technique [0002] The admixture added during cement grinding to aid in grinding without harming human health and the performance of cement concrete is called grinding aid, which is divided into two types: powder and liquid. It is a chemical additive to improve the grinding effect and performance of cement. It can be added to the material to be ground in an appropriate amount. Through its physical and chemical effects on the surface of the particles, it can significantly increase the output of the cement table and the strength of cement at all ages. , to improve its fluidity. [0003] The application of grinding aids in cement production can reduce the amount of clinker, consume more industrial waste residues, reduce the power consumption of cement grinding, and ha...

Claims

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Application Information

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IPC IPC(8): C04B7/52C04B7/26
CPCC04B7/26C04B7/52Y02P40/10
Inventor 徐建谢昊康慧芬
Owner NINGXIA PAGODA CHEM CENT LAB CO LTD
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