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Porous material based on modified steel slag and preparation method of porous material

A porous material and steel slag technology, applied in the field of steel slag materials, can solve the problems of unsuitable slag large-area treatment, complex composition of grinding aid activators, complex preparation process, etc., to promote dissolution and hydration reaction, improve hydration activity, and apply promising effect

Inactive Publication Date: 2017-09-01
DONGGUAN JIAQIAN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the grinding aid activator prepared by this method has a complex composition, contains a variety of stone materials, the preparation process is relatively complicated, and the cost is high, so it is not suitable for large-scale treatment of slag.

Method used

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  • Porous material based on modified steel slag and preparation method of porous material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Dissolve 10 parts of calcium acetate and 10 parts of calcium formate in 60 parts of water to form a solution, then add 7 parts of triethanolamine hydrochloride to completely dissolve it, then add 6 parts of diethylenetriamine, 2 parts of amino ethyl Glyethanolamine, 6 parts of triethylene glycol and 3 parts of 1,4-butanediol compound were mixed and stirred uniformly, and finally 1 part of glacial acetic acid was added, and the grinding aid activator was obtained after uniform mixing.

[0027] (2) According to the blending amount of 0.03wt%, the grinding aid activator is added to the steel slag, as for the high-speed ball milling in the ball mill for 5 hours, and the finely ground activated steel slag powder is obtained.

[0028] (3) According to the mass ratio of ground activated steel slag powder to fly ash, polystyrene foam particles and clay is 60:15:3:10, mix the ground activated steel slag powder and fly ash evenly, and moisten with a small amount of water Agin...

Embodiment 2

[0030] (1) Dissolve 10 parts of calcium formate and 10 parts of sodium thiosulfate in 57.8 parts of water to form a solution, then add 6 parts of triisopropanolamine hydrochloride to completely dissolve it, and then add 8 parts of triethylene glycol Alcohol and 8 parts of N-methyldiethanolamine compound were mixed and stirred evenly, and finally 0.2 part of glacial acetic acid was added, and the grinding aid activator was obtained after uniform mixing.

[0031] (2) According to the blending amount of 0.12wt%, the grinding aid activator is added to the steel slag, and the ball mill is ball milled at a high speed for 10 hours to obtain a finely ground activated steel slag powder.

[0032] (3) According to the mass ratio of ground activated steel slag powder to fly ash, polystyrene foam particles and clay is 60:15:3:10, mix the ground activated steel slag powder and fly ash evenly, and moisten with a small amount of water Aging for 30 minutes, adding fully wetted polystyrene foam...

Embodiment 3

[0034] (1) Dissolve 10 parts of calcium acetate and 10 parts of sodium formate in 55.8 parts of water to form a solution, then add 4 parts of triethanolamine hydrochloride and 4 parts of triisopropanolamine hydrochloride to dissolve completely, and then add 4 parts of aminoethylethanolamine, 5 parts of N-methyldiethanolamine and 5 parts of monoethanol diisopropanolamine, 5 parts of triethylene glycol and 5 parts of neopentyl glycol compound are mixed and stirred evenly, and finally 1 part of glacial acetic acid is added, After uniform mixing, the grinding aid activator is obtained.

[0035] (2) According to the blending amount of 0.05wt%, the grinding aid activator is added to the steel slag, and the ball mill is ball milled at a high speed for 6 hours to obtain a finely ground activated steel slag powder.

[0036] (3) According to the mass ratio of ground activated steel slag powder to fly ash, polystyrene foam particles and clay is 60:15:3:10, mix the ground activated steel ...

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Abstract

The invention provides a porous material based on modified steel slag and a preparation method of the porous material. The porous material is prepared by mixing and sintering grinded and refined modified steel slag with coal ash, a pore-forming agent and clay, specifically, the preparation method comprises the following steps: dissolving calcium salt or sodium salt, polyhydric alcohol benzylamine hydrochloride into water so as to form a solution, mixing and stirring dihydric alcohol and an organic alkylol amine compound in sequence, finally adding glacial acetic acid, and uniformly mixing so as to obtain a grinding assisting activating agent; adding the grinding assisting activating agent into the steel slag, and performing high-speed ball milling in a ball mill so as to obtain grinded activated steel slag powder; uniformly mixing the grinded activated steel slag powder with the coal ash, moistening and aging with a small amount of water, adding sufficiently moistened polystyrene foam granules, further adding clay, uniformly mixing, pressing into round blanks, and performing high-temperature sintering, thereby obtaining the porous material based on the modified steel slag. As the modified steel slag which is small in granularity and high in activity is adopted as a raw material, the prepared porous material is moderate in porosity, high in mechanical strength and good in comprehensive property.

Description

technical field [0001] The invention belongs to the technical field of steel slag materials, and in particular relates to a porous material based on modified steel slag and a preparation method thereof. Background technique [0002] Slag is the main solid waste of iron and steel enterprises. With the continuous improvement of energy saving, emission reduction and environmental protection requirements, the pressure of cost reduction and efficiency increase of iron and steel enterprises is also increasing. Among the slags, ironmaking slag accounts for 25-30% of steel output, and steelmaking slag accounts for 11-15% of steel output. Among them, the utilization of steel slag is not very sufficient, and most of them are still in the state of simple stockpiling and arbitrary discharge. Recycling is related to the development of the steel industry and the environment. [0003] The main chemical components of steel slag are calcium oxide, silicon dioxide, aluminum oxide, iron oxide...

Claims

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Application Information

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IPC IPC(8): C04B33/135C04B33/138C04B38/06C04B5/00B02C23/06
CPCB02C23/06C04B5/00C04B33/1352C04B33/138C04B35/6261C04B38/067C04B2235/6562C04B2235/6567C04B2235/96C04B38/0074Y02P40/60
Inventor 王海燕
Owner DONGGUAN JIAQIAN NEW MATERIAL TECH CO LTD
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