Active grinding aid for vertical mill ground steel slag

A technology of grinding aid and steel slag, which is applied in the field of active grinding aid for vertical grinding of steel slag, can solve the problems of unsatisfactory grinding effect, difficult realization, rising cost, etc., and achieve broad economic and social benefits, increase Angle of repose, effect of reducing usage

Active Publication Date: 2021-07-20
金明寓建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of traditional alcohol amine cement grinding aids, for steel slag, the grinding effect is not very ideal, and the large use of alcohol amine grinding aids will also increase the cost significantly, so the reuse of steel slag to realize the reuse of resources original intention will be difficult to achieve

Method used

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  • Active grinding aid for vertical mill ground steel slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An active grinding aid for grinding steel slag in a vertical mill, comprising an active stimulating component and a composite grinding aid component, wherein the active stimulating component includes the following raw materials in parts by weight: 5 parts of molasses, 5 parts of triethylene glycol, 3 parts of aluminum sulfate 2 parts of calcium formate; the composite grinding aid component includes the following raw materials in parts by weight: 10 parts of alcohol amine component, 5 parts of citric acid, 3 parts of activator, 1 part of activator.

[0024] The preparation method of the alcoholamine component is as follows: dissolving sodium chloroacetate in deionized water, adding sodium hydroxide to adjust the pH to 9, adding diisopropylethanolamine and ammonium persulfate in sequence, and stirring at 70°C for 1 hour , to obtain the alcohol amine component.

[0025] The molar ratio of deionized water, sodium chloroacetate, sodium hydroxide, diisopropylethanolamine and ...

Embodiment 2

[0032] An active grinding aid for grinding steel slag in a vertical mill, comprising an active stimulating component and a composite grinding aid component, wherein the active stimulating component includes the following raw materials in parts by weight: 8 parts of molasses, 10 parts of triethylene glycol, 5 parts of aluminum sulfate 6 parts of calcium formate; the composite grinding aid component includes the following raw materials in parts by weight: 15 parts of alcohol amine component, 8 parts of citric acid, 5 parts of activator, 3 parts of activator.

[0033] The preparation method of the alcoholamine component is as follows: dissolving sodium chloroacetate in deionized water, adding sodium hydroxide to adjust the pH to 10, adding diisopropylethanolamine and ammonium persulfate in sequence, and stirring at 80°C for 1 hour , to obtain the alcohol amine component.

[0034] The molar ratio of deionized water, sodium chloroacetate, sodium hydroxide, diisopropylethanolamine a...

Embodiment 3

[0041]An active grinding aid for grinding steel slag in a vertical mill, comprising an active stimulating component and a composite grinding aid component, wherein the active stimulating component includes the following raw materials in parts by weight: 5 parts of molasses, 10 parts of triethylene glycol, 3 parts of aluminum sulfate 4 parts, calcium formate; The composite grinding aid component includes the following raw materials in parts by weight: 20 parts of alcohol amine components, 5 parts of citric acid, 3 parts of activator, 5 parts of activator.

[0042] The preparation method of the alcoholamine component is as follows: dissolving sodium chloroacetate in deionized water, adding sodium hydroxide to adjust the pH to 10, adding diisopropylethanolamine and ammonium persulfate in turn, and stirring at 80°C for 2h , to obtain the alcohol amine component.

[0043] The molar ratio of deionized water, sodium chloroacetate, sodium hydroxide, diisopropylethanolamine and ammoniu...

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PUM

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Abstract

The invention discloses an active grinding aid for vertical mill ground steel slag, and belongs to the technical field of steel slag admixtures. The active grinding aid comprises an active excitation component and a composite grinding aid component, wherein the active excitation component comprises the following raw materials in parts by weight: 5-10 parts of molasses, 5-10 parts of triethylene glycol, 3-7 parts of aluminum sulfate and 2-6 parts of calcium formate; the composite grinding aid component comprises the following raw materials in parts by weight: 10-20 parts of an alcamine component, 5-10 parts of citric acid, 3-5 parts of an exciting agent and 1-5 parts of an activating agent. The use of the alcamines grinding aid is greatly reduced, the mixing amount is small, the grinding efficiency is high, the obtained steel slag is high in specific surface area and good in activity, efficient resource utilization of the waste steel slag is achieved, and the active grinding aid has wide economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the technical field of steel slag admixture, and in particular relates to an active grinding aid for vertical mill grinding steel slag. Background technique [0002] Steel slag is solid waste composed of slag-forming materials, smelting reactants, and eroded and fallen furnace body materials during the steel production process. Its emissions account for about 15%-20% of crude steel output. It will cause some pollution to the local ecological environment. Therefore, the comprehensive utilization of steel slag has been paid more and more attention. Steel slag contains a lot of C 2 S, C 3 Minerals such as S, which are similar to the mineral composition of Portland cement clinker, have potential gelling activity and have great application potential in cement concrete. However, steel slag is hard to grind because of its high hardness. In order to obtain higher fineness steel slag Powder often needs to be milled for a long time, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/52
CPCC04B40/0039C04B2103/52C04B24/38C04B24/026C04B24/04C04B24/122C04B24/06C04B2103/0068C04B2103/10
Inventor 胡尊涛王言亮
Owner 金明寓建设集团有限公司
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