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A kind of mineral powder grinding aid and its preparation method and application

A grinding aid and mineral powder technology, which is applied in the field of building materials, can solve the problems such as the inability to meet the performance requirements of mineral powder, the low activity of slag, and the failure of the mineral powder to achieve the expected use effect.

Active Publication Date: 2022-07-08
HUNAN ZHONGYAN BUILDING MATERIAL TECH CO LTD
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  • Application Information

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Problems solved by technology

However, compared with cement, the strength of mineral powder in the early hydration process is lower, and due to the limitations of factors such as low activity of slag, poor grinding performance, and poor stability, the use of mineral powder has not achieved the expected use effect.
[0006] Usually, the means of improving the grinding performance, activity and energy consumption of mineral powder is to add grinding aids during the grinding process, but the existing grinding aids cannot meet the performance requirements of mineral powder for the time being.

Method used

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

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Embodiment 1

[0065] The present embodiment provides a mineral powder grinding aid, the specific formula is shown in Table 1, the specific preparation method is, under normal temperature and pressure, in order, sodium sulfate, sodium aluminate, polymeric polyol, itaconic acid, Polycarboxylate water reducing agent, NaOH and compound alcohol amine are dissolved in water in turn, and then continue to stir for 20min; in the dissolving process, the former raw material needs to be completely dissolved before adding the latter raw material.

[0066] Wherein, in the present embodiment, the polycarboxylate water reducer is a polycarboxylate water reducer produced from Hunan Zhongyan Building Materials Technology Co., Ltd. and the model is HL-700;

[0067] The compound alcoholamine is a mixture of ethylene oxide-modified diethanolamine and ethylene oxide-modified triethanolamine, and the composition ratio is 1:1;

[0068] The polymerized polyol is obtained by polymerizing ethylene glycol, diethylene ...

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Abstract

The invention discloses a mineral powder grinding aid and its preparation method and application. A mineral powder grinding aid, the preparation raw materials include: sulfate, aluminate, alkali metal hydroxide and itaconic acid. The slag grinding aid of the invention can react with the components in the slag under the condition of water, so as to improve the activity and strength of the obtained slag.

Description

technical field [0001] The invention belongs to the technical field of building materials, and particularly relates to a mineral powder grinding aid and a preparation method and application thereof. Background technique [0002] The full name of "slag" is "granulated blast furnace slag", which is the waste slag produced when iron and steel plants smelt pig iron. The slag is produced by: in the blast furnace ironmaking process, in addition to iron ore and fuel (coke), in order to reduce the smelting temperature, an appropriate amount of limestone and dolomite should be added as a flux. The decomposition products of the co-solvent (calcium oxide and magnesium oxide) will melt with the waste ore in the iron ore and the ash in the coke to form a melt with silicate and aluminosilicate as the main components, floating. On the surface of molten iron, it is regularly discharged from the slag discharge port, and the granular particles formed after being quenched by air or water are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/28C04B103/52
CPCC04B40/0039C04B2103/52C04B22/147C04B22/08C04B22/062C04B24/28C04B24/04Y02W30/91
Inventor 贺任张庆钟康谭亮刘雅卓
Owner HUNAN ZHONGYAN BUILDING MATERIAL TECH CO LTD
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