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A kind of grinding aid and its preparation method and application

A grinding aid and unsaturated technology, applied in the field of grinding aid and its preparation, can solve the problems of insufficient effect, difficulty in large-scale popularization and use, and high cost

Active Publication Date: 2022-05-17
HUNAN ZHONGYAN BUILDING MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the improvement of early strength, the industry can achieve it by increasing the proportion of alcohol amine substances in grinding aids, but because of the high price of alcohol amine substances, this method makes grinding aids costly and difficult to promote on a large scale use
Other methods of improving the early strength of cement through grinding aids are difficult to balance the early strength and later strength
[0004] To sum up, the existing methods of improving the early strength of cement through grinding aids are either costly or not effective enough

Method used

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  • A kind of grinding aid and its preparation method and application
  • A kind of grinding aid and its preparation method and application
  • A kind of grinding aid and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The present embodiment has prepared a kind of grinding aid, and concrete process is:

[0044] S1. Weigh 10 g of sodium thiosulfate, 5 g of sodium chloride, 10 g of calcium nitrate, and 43 g of water, add them to the reaction vessel, and stir for 10 min to dissolve;

[0045] S2. Add 18 g of diethanol monoisopropanolamine, 10 g of polymeric polyol and 4 g of itaconic acid to the system obtained in step S1, and carry out low-frequency ultrasonic oscillation for 5 min (frequency is 50-80 Hz) to form a uniform mixed solution. Abrasives.

[0046] Comparative examples 1~9 prepared a kind of grinding aid respectively, and the difference of concrete process and embodiment 1 is:

[0047] (1) The specific components of the raw materials are different, and the specific components are shown in Table 1.

[0048]The raw material composition of grinding aid in table 1 embodiment 1 and comparative examples 1~9

[0049]

[0050] Wherein, the unfilled cells represent no addition; th...

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Abstract

The invention discloses a grinding aid and its preparation method and application, belonging to the technical field of building materials. A grinding aid, raw materials include: diethanol monoisopropanolamine, polymer polyol, unsaturated polycarboxylic acid, water-soluble thiosulfate, water-soluble chloride salt and water-soluble calcium salt. The grinding aid provided by the invention can improve the early strength of the obtained cement under the premise of ensuring the grinding efficiency when it is applied to the preparation of cement through the matching of raw material components.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a grinding aid and its preparation method and application. Background technique [0002] With the continuous development of the basic construction industry, the application of grinding aids in the cement industry is becoming more and more extensive. At present, the grinding aids used in cement plants are mainly to improve the grinding situation and reduce energy consumption. The traditional way to reduce energy consumption is to carry out technical transformation of cement production process and equipment, but this way has huge initial construction investment, and it is difficult to recover the cost in a short period of time, resulting in low enthusiasm of cement enterprises, and the use of cement grinding aids to save energy and reduce costs Therefore, the development and research of cement grinding aids has become the first choice for energy saving and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/52C04B7/38
CPCC04B7/52C04B7/38Y02P40/10
Inventor 贺任幸余彬钟康岳健霍小伟
Owner HUNAN ZHONGYAN BUILDING MATERIAL TECH CO LTD