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Method for baking scrap steel in converter

A baking method and converter technology, applied in the field of iron and steel smelting, can solve the problems such as the inability to continue to increase the utilization rate of steel scrap, and achieve the effect of increasing the consumption of steel scrap and reducing the consumption of molten iron

Inactive Publication Date: 2019-04-09
TIANJIN IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In actual production, due to the limitation of physical heat and chemical heat of molten iron entering the furnace, the proportion of steel scrap used is about 15%, and the reaction in the furnace is basically in a state of thermal equilibrium, so it is impossible to continue to increase the utilization rate of steel scrap. The utilization rate of steel scrap in the prior art is partial Low is an important bottleneck to improve the efficiency of converter smelting

Method used

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Examples

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] A method for baking scrap steel in a converter disclosed by the present invention is simple to operate, energy-saving and environmentally friendly, breaks through the heat limitation in the furnace, and improves the utilization rate of scrap steel. In order to further illustrate the present invention, it is elaborated as follows:

[0019] A method for baking steel scrap in a converter, the baking of steel scrap in a converter includes the following steps: a, adding steel scrap into the converter; b, adding coke into the converter, and the coke is dispersed around the steel scrap; c, using an oxygen lance to feed the ...

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PUM

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Abstract

The invention discloses a method for baking scrap steel in a converter, and belongs to the field of iron and steel smelting. The method for baking the scrap steel in the converter comprises the following steps: a, adding the scrap steel into the converter; (b) adding coke into the converter, wherein the coke is distributed around the scrap steel; (c) supplying oxygen to the converter by using an oxygen lance to make the coke burn and react in the converter to bake the scrap steel; and (d) after baking is finished, charging melted iron to the converter. The method for baking the scrap steel inthe converter disclosed by the invention is simple to operate, energy-saving and environmentally friendly, breaks through the limitation of heat in the converter, and improves the utilization rate ofscrap steel.

Description

technical field [0001] The invention belongs to the field of iron and steel smelting, and in particular relates to a method for baking scrap steel in a converter. Background technique [0002] Scrap steel is one of the main raw materials for converter steelmaking. Every ton of scrap steel used in the converter can save 2-3 tons of iron ore, reduce a large amount of waste gas, waste water and waste residue discharge, and have obvious environmental benefits. Therefore, steel scrap can be used as a clean energy source for converter smelting. [0003] In actual production, due to the limitation of physical heat and chemical heat of molten iron entering the furnace, the proportion of steel scrap used is about 15%, and the reaction in the furnace is basically in a state of thermal equilibrium, so it is impossible to continue to increase the utilization rate of steel scrap. The utilization rate of steel scrap in the prior art is partial Low is an important bottleneck to improve th...

Claims

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Application Information

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IPC IPC(8): C21C5/28
CPCC21C5/28Y02P10/20
Inventor 吴杰崔猛刘寒冰李林杰邢建森孟阳
Owner TIANJIN IRON & STEEL GRP
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