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Method for manufacturing molten irons improving charging method and apparatus for manufacturing molten irons using the same

A technology for a manufacturing device and a manufacturing method, applied in the field of molten iron manufacturing devices, can solve the problems of reduction in reduction and heat exchange efficiency, increase the size of a reduction furnace, etc., and achieve the effects of reducing maintenance costs, simplifying structure, and improving reduction rate

Active Publication Date: 2016-10-12
浦项股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As mentioned above, since the air circulation pipe is moved from the lower end of the reduction furnace to the upper part, the efficiency of further reduction and heat exchange by the reducing gas decreases, and there is a problem that the size of the reduction furnace needs to be increased.

Method used

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  • Method for manufacturing molten irons improving charging method and apparatus for manufacturing molten irons using the same
  • Method for manufacturing molten irons improving charging method and apparatus for manufacturing molten irons using the same
  • Method for manufacturing molten irons improving charging method and apparatus for manufacturing molten irons using the same

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Embodiment Construction

[0054] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms are also intended to include the plural unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and "comprises" do not specifically refer to certain features, regions, integers, steps, actions, elements and / or ingredients to the exclusion of other features, regions, integers, steps, actions, elements, The presence or addition of components and / or groups.

[0055] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so as to be easily implemented by those skilled in the art. It should be easily understood by those skilled in the art that the present invention can be implemented in various ways without departing from the concept and scope of the present invention. Therefore, the pr...

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Abstract

The present invention relates to a method to manufacture molten iron with an improved charging method, and an apparatus to manufacture molten iron using the same. According to the present invention, the method to manufacture molten iron comprises: a step of preparing an iron inclusion; a step of converting the iron inclusion into reduced materials in a reducing furnace; a step of preparing agglomerated coals to be supplied to a molten gas brazier connected to the reducing furnace; a step of measuring a weight of the reducing materials to be charged to the molten gas brazier by being discharged from the reducing furnace; a step of charging the reducing materials and agglomerated coals to the molten gas brazier; and a step of manufacturing molten iron by blowing oxygen in the molten gas brazier.

Description

technical field [0001] The present invention relates to a method for manufacturing molten iron with an improved charging method and a device for manufacturing molten iron using the method, and more particularly relates to a method for controlling the charging amount of reducing materials and massive carbonaceous materials loaded into a melting and gasifier. A molten iron manufacturing method for uniform charge distribution and a molten iron manufacturing device using the method. Background technique [0002] The steel industry is a core industry, providing the basic materials needed to build and manufacture cars, ships, household appliances, and many other products used by humans. It is also one of the industries with a long history that has developed together with human beings. Iron foundries play a key role in the steel industry, where iron ore and coal are used as raw materials to produce molten iron (pig iron in molten state), from which steel is then produced and suppl...

Claims

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Application Information

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IPC IPC(8): C21B13/00
CPCC21B13/00C21B13/0006C21B13/0013
Inventor 权奇雄崔永吉
Owner 浦项股份有限公司
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