Steelmaking refractory material recycling technology

A refractory material and process technology, applied in the field of steel-making refractory recycling process, can solve the problems of affecting product quality, low utilization rate, etc., and achieve the effects of reducing costs and steel-making costs, high work efficiency, and good effects

Inactive Publication Date: 2020-04-14
天津炜润达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the steelmaking waste on the market is directly added to the brick formula, not only the utilization rate is not high, but also the product quality will be affected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A steelmaking refractory recycling process, the steps comprising:

[0037] (1) Dust removal: Collect the discarded steel-making refractories and wash them with water to remove the dust on the surface of the discarded steel-making refractories;

[0038] (2) Remove slag layer and permeable layer: use manual knocking method and tangential method to remove slag layer and permeable layer of discarded steelmaking refractory materials;

[0039] (3) Crushing processing:

[0040] aCoarse crushing: use jaw crusher to roughly crush the waste steelmaking refractory materials that have removed the slag layer and the permeable layer;

[0041] b Fine crushing: the waste steelmaking refractory materials after coarse crushing are finely crushed with a hammer crusher;

[0042] (4) Powder sieve: sieve the finely crushed waste steelmaking refractory particles into three specifications, namely 2-7mm, 0.5-2mm, and 0-0.5mm;

[0043] (5) Roasting: According to the three specifications of th...

Embodiment 2

[0050] A steelmaking refractory recycling process, the steps comprising:

[0051] (1) Dust removal: Collect the discarded steel-making refractories and wash them with water to remove the dust on the surface of the discarded steel-making refractories;

[0052] (2) Remove slag layer and permeable layer: use manual knocking method and tangential method to remove slag layer and permeable layer of discarded steelmaking refractory materials;

[0053] (3) Crushing processing:

[0054] aCoarse crushing: use jaw crusher to roughly crush the waste steelmaking refractory materials that have removed the slag layer and the permeable layer;

[0055] b Fine crushing: the waste steelmaking refractory materials after coarse crushing are finely crushed with a hammer crusher;

[0056] (4) Powder sieve: sieve the finely crushed waste steelmaking refractory particles into three specifications, namely 2-7mm, 0.5-2mm, and 0-0.5mm;

[0057] (5) Roasting: According to the three specifications of th...

Embodiment 3

[0064] A steelmaking refractory recycling process, the steps comprising:

[0065] (1) Dust removal: Collect the discarded steel-making refractories and wash them with water to remove the dust on the surface of the discarded steel-making refractories;

[0066] (2) Remove slag layer and permeable layer: use manual knocking method and tangential method to remove slag layer and permeable layer of discarded steelmaking refractory materials;

[0067] (3) Crushing processing:

[0068] aCoarse crushing: use jaw crusher to roughly crush the waste steelmaking refractory materials that have removed the slag layer and the permeable layer;

[0069] b Fine crushing: the waste steelmaking refractory materials after coarse crushing are finely crushed with a hammer crusher;

[0070] (4) Powder sieve: sieve the finely crushed waste steelmaking refractory particles into three specifications, namely 2-7mm, 0.5-2mm, and 0-0.5mm;

[0071] (5) Roasting: According to the three specifications of th...

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PUM

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Abstract

The invention relates to a steelmaking refractory material recycling technology. Waste steelmaking refractory materials are reasonably utilized to produce a usable amorphous refractory material, so environmental pollution is reduced, and the cost of the refractory material and the steelmaking cost are greatly reduced. The recycling technology is used to make the recycling rate of the steelmaking refractory material reach 96% or above, performs coarse crushing through a jaw crusher firstly, and then performs fine crushing through a hammer crusher, so the working efficiency is high; and three different specifications of waste steelmaking refractory material particles are roasted and rolled respectively, so that the roasting and rolling effects are good, the working efficiency is high, the time cost is saved, and the recycling rate of the waste steelmaking refractory materials is increased.

Description

technical field [0001] The invention relates to the technical field of recycling refractory materials for steelmaking, in particular to a recycling process for refractory materials for steelmaking. Background technique [0002] The "Solid Waste Pollution Prevention and Control Law of the People's Republic of China" clarifies the definition of solid waste, and the solid waste formed by refractory materials belongs to the category of industrial solid waste. A large amount of waste refractory materials are produced every year. Except for a certain amount of waste refractory materials that have been recycled and reused, there are still a large amount of waste refractory materials that are still disposed of in landfills. The processing method is simple and rough, occupying a large amount of arable land, many Acidic or alkaline refractory materials have caused permanent pollution to the groundwater resources of the land used, greatly destroying the ecological balance of the soil. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00
Inventor 王三忠朱万政田博鄢长喜刘翠花窦佳伟朱文龙
Owner 天津炜润达新材料科技有限公司
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