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Reinforcing type cement grinding aid

A cement grinding aid, enhanced technology, applied in the field of enhanced cement grinding aid, can solve the problems of reduced adaptability of cement and concrete, decreased effect of cement grinding aid, high price of triethanolamine, etc., and achieves obvious effect of increasing production, Effect of increasing cement strength and good adaptability

Inactive Publication Date: 2016-04-20
方慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of alcohol amine in these formulas is relatively large, accounting for more than 30%. Triethanolamine and triisopropanolamine are petrochemical raw materials, and their prices are greatly affected by petroleum. The price has been high, resulting in an increase in the cost of grinding aids, affecting other Promote application
Due to the high price of triethanolamine, various manufacturers are trying to reduce the amount of triethanolamine used or find a substitute, but although the cost is reduced, it often results in a decline in the effect of cement grinding aids, reducing the adaptability of cement and concrete

Method used

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  • Reinforcing type cement grinding aid
  • Reinforcing type cement grinding aid
  • Reinforcing type cement grinding aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh the following raw materials according to the weight ratio: 10kg triisopropanolamine, 5kg triethanolamine, 4kg sodium acetate, 6kg sodium thiosulfate, 6kg propylene glycol, 10kg sodium lignosulfonate, 15kg activator, mix and stir for 30 minutes Get enhanced cement grinding aid products;

[0030] Described activator is made up of following weight ratio composition:

[0031]

[0032] Described accelerant adopts following method to prepare:

[0033] 1) Raw material processing: washing, drying and pulverizing the echinacea;

[0034] 2) Steam explosion treatment: put the material obtained in step 1) into a steam explosion tank, the explosion pressure is 3.0-3.5Mpa, and the pressure holding time is maintained at 150-200s;

[0035] 3) Distillation treatment: put the material obtained in step 2) into the distiller, heat and burn or pass in steam at the bottom of the distiller, when the hot steam is filled in the distiller, water vapor is introduced into the condenser ...

Embodiment 2

[0038] The following raw materials are weighed in parts by weight: 15kg of triisopropanolamine, 4kg of triethanolamine, 5kg of sodium acetate, 8kg of sodium thiosulfate, 5kg of propylene glycol, 11kg of sodium ligninsulfonate, 18kg of activator (the preparation method refers to the implementation Example 1), mixed and stirred for 30 minutes to obtain the enhanced cement grinding aid product.

Embodiment 3

[0040] The following raw materials are weighed in proportion by weight: 12kg of triisopropanolamine, 4kg of triethanolamine, 5kg of sodium acetate, 8kg of sodium thiosulfate, 5kg of propylene glycol, 10kg of sodium ligninsulfonate, 18kg of activator (the preparation method refers to the implementation Example 1), mixed and stirred for 30 minutes to obtain the enhanced cement grinding aid product.

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Abstract

The invention discloses a reinforcing type cement grinding aid. The reinforced type cement grinding aid is prepared from, by weight, 10-15 parts of tri-isopropanolamine, 3-5 parts of triethanolamine, 4-6 parts of sodium acetate, 6-10 parts of sodium thiosulfate, 4-6 parts of propylene glycol, 10-12 parts of sodium ligninsulfonate and 15-20 parts of an activating agent. According to the reinforcing type cement grinding aid, the special activating agent is adopted for enhancing the effect of the cement grinding aid, vegetable raw material constituents used in the activating agent are subjected to steam explosion, distillation and high shear homogenizer treatment, vegetable oil-based constituents in the nanoemulsion state are obtained, and compatibility with other formulas in a culture medium is good.

Description

technical field [0001] The invention belongs to the technical field of cement production and processing, and in particular relates to an enhanced cement grinding aid. Background technique [0002] Cement grinding aid is a chemical admixture to improve the grinding efficiency of the mill and improve the performance of cement. It is generally added directly to the cement mill or added to the cement clinker into the grinding belt, and mixed with cement clinker or other materials together into the cement mill for grinding. After the grinding aid enters the mill with the cement clinker, it is adsorbed on the surface and cracks of the material particles. Due to the polar molecular structure of the grinding aid, the foreign ions provided by it neutralize the electrostatic charge generated by the friction of the cement clinker during the grinding process, reducing the ability of fine particles to aggregate and making the clinker The particles are separated from the grinding medium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
CPCC04B40/0039C04B2103/52C04B24/122C04B24/04C04B22/14C04B24/02C04B24/18C04B24/128C04B24/00
Inventor 方慧
Owner 方慧
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