Compacting equipment dust treatment apparatus and treatment method

A technology of dust treatment and block equipment, which is applied in the direction of the device whose axial direction can be reversed, the swirl device, the separation method, etc., can solve the problems of reducing the gas permeability in the furnace and the adverse effects of the melting furnace, and achieve the improvement of production sexual effect

Active Publication Date: 2018-07-31
浦项股份有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

At this time, if a part of the reduced iron in the form of dust is charged into the smelting furnace, the gas permeability in the furnace will be reduced, which will adversely affect the operation of the smelting furnace

Method used

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  • Compacting equipment dust treatment apparatus and treatment method

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[0025] The terminology used herein is for describing particular embodiments only and is not intended to be limiting of the invention. As used herein, singular forms are also intended to include plural forms unless the context clearly dictates otherwise. It should also be understood that the term "comprises" or "comprising" may specifically refer to a certain characteristic, field, integer, step, action, element and / or component, but does not exclude other characteristics, fields, integers, steps, actions, elements , the presence or addition of components and / or groups.

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. It should be understood by those skilled in the art that the embodiments described herein can be modified and implemented in various ways without departing from the concept and scope of the present inventio...

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Abstract

Provided is a compacting equipment dust treatment apparatus for recycling dust such as iron powder or fragments collected and treated in the process of manufacturing compacted iron, and re-treating dust, thereby enabling the further enhancement of the stability of compacted iron and the manufacturing of high-quality compacted iron, the dust treatment apparatus comprising: a first dust collecting part which is connected to a storage tank for storing direct reduced iron, and which collects iron powder included in gas discharged from the storage tank; and a second dust collecting part which is connected to a compacting machine for manufacturing a briquette by compression-molding the direct reduced iron supplied from the storage tank, and which collects iron powder included in gas discharged in the process of manufacturing compacted iron, wherein the first dust collecting part is connected with the second dust collecting part and transfers iron powder collected in the first dust collectingpart to the second dust collecting part, and the second dust collecting part is connected to the storage tank and supplies the collected recycled iron powder to the storage tank, thereby forming a structure in which recycled iron powder having a relatively high degree of oxidization is mixed with the direct reduced iron in the storage tank.

Description

technical field [0001] The present invention relates to a briquetting device for pressing a reduced body containing reduced iron powder (DRI; direct reduced iron) into a briquette (HCI; hot compact iron) to manufacture molten iron. More specifically, the present invention relates to a dust treatment device and a treatment method of a briquetting facility for treating dust such as iron powder generated in a briquette manufacturing facility. Background technique [0002] Recently, in order to solve the problem of the blast furnace method, ironworks around the world are making great efforts to develop a smelting reduction ironmaking method, which directly uses ordinary coal as fuel and reducing agent and directly uses more than 80% of the global mine output The fine ore is used as an iron source to make molten iron. [0003] The smelting reduction ironmaking equipment that directly uses fine ore to make molten iron includes a fluidized bed reduction furnace, a briquette equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/14C22B7/02B01D45/12B01D46/02B01D46/00B04C5/24B04C5/185
CPCB01D45/12B01D46/00B01D46/02B04C5/185B04C5/24C22B1/14C22B7/02Y02P10/20
Inventor 李光熙崔锺敏
Owner 浦项股份有限公司
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