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Method for treating high-titanium desulfurized furnace cinder

A treatment method and blast furnace slag technology, which is applied in the field of high titanium desulfurization blast furnace slag treatment, can solve the problems of hidden safety hazards, explosions, unseen problems, etc., and achieve the effect of safe operation and broad application prospects

Inactive Publication Date: 2009-05-13
PANZHIHUA HUANYE METALLURGICAL SLAG DEV CO LTD
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Problems solved by technology

This high-titanium desulfurization blast furnace slag produces a large amount of mushroom cloud-like black smoke during the slag turning process, which floats and diffuses in the air, seriously affecting the production and operating environment. During the slag turning process, residual desulfurizers, especially calcium carbide, and residual metal magnesium, etc. Combustion or even explosion in case of air, there are certain safety hazards
[0003] At present, domestic iron and steel plants generally transfer desulfurized blast furnace slag to slag yards far away from cities for dumping. Since ordinary blast furnace slag has the characteristics of low melting point and good fluidity, there are generally less desulfurizer residues in desulfurized slag, and the slag turning process generally does not Combustion of a large amount of calcium carbide and metal magnesium powder occurs, so the smoke and dust during the slag turning process is not obvious, and there is no report on the relevant smoke and dust control technology

Method used

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Embodiment

[0018] The high-altitude spraying device adopts a rectangular net frame with a length of 15 meters, a width of 8 meters and a height of 18 meters. The water pressure is 0.6-0.8Mpa, and the nozzle is opened about 1 minute before turning over the slag to form a three-dimensional water curtain. Then turn over 60t of slag and spray the blast furnace slag evenly for 2min. The water after spraying is recycled. The treated high-titanium desulfurized blast furnace slag is crushed, magnetically separated, and recycled.

[0019] Compared with the high-titanium desulfurization blast furnace slag without three-dimensional water curtain spraying, the amount of smoke and dust is reduced by 90%, the floating matter of smoke and dust is reduced by 50%, the area of ​​smoke and dust diffusion is reduced by 80%, and there is no explosion during the spraying process.

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Abstract

The invention relates to a method for treating high titanium type desulfurized blast furnace slag and belongs to the field of slag treatment. To solve the technical problem, the method provides a method for treating the high titanium type desulfurized blast furnace slag, which can reduce the generating capacity of soot. The method for treating the high titanium type desulfurized blast furnace slag is to use a three-dimensional water curtain to spray the high titanium type desulfurized blast furnace slag. The method for treating the high titanium type desulfurized blast furnace slag can reduce the soot amount of the high titanium type desulfurized blast furnace slag by more than 50 percent, has no explosion in the spraying process, guarantees the operation safety, and has wide application prospect.

Description

technical field [0001] The invention relates to a treatment method for high-titanium desulfurization blast furnace slag, belonging to the field of slag treatment. Background technique [0002] The vanadium-titanium magnetite in the Panzhihua area of ​​my country has a high titanium content, and the TiO of the blast furnace slag 2 The content is as high as about 22%, which leads to a high consistency of liquid slag, so that part of the MgO-CaO composite desulfurizer and AD powder desulfurizer fail to react completely and remain in the blast furnace slag, and exist in the form of calcium carbide, forming a high-titanium type Desulfurization blast furnace slag. This high-titanium desulfurization blast furnace slag produces a large amount of mushroom cloud-like black smoke during the slag turning process, which floats and diffuses in the air, seriously affecting the production and operating environment. During the slag turning process, residual desulfurizers, especially calcium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/08
CPCC21B2400/024
Inventor 何焕江敖进清赵杰郑俊林
Owner PANZHIHUA HUANYE METALLURGICAL SLAG DEV CO LTD
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