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Efficient reduction coal-based vertical furnace

A coal-based, shaft furnace technology, applied in shaft furnaces, furnaces, furnace types, etc., can solve problems such as unstable product quality, short furnace life, and high energy consumption

Pending Publication Date: 2018-08-10
ZHENGZHOU ANLIANKAI IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the existing coal-based direct reduction problems such as unstable product quality, high energy consumption, short furnace life, high production cost, and small production capacity, the present invention provides a high-efficiency reduction coal-based shaft furnace

Method used

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Embodiment Construction

[0040] In order to make the technical solution of the present invention easier to understand, the technical solution of the present invention will be described clearly and completely by means of specific embodiments in conjunction with the accompanying drawings. It should be noted that the embodiments described here are only some of the embodiments of the present invention, rather than all implementations of the present invention. The embodiments are only illustrative, and their role is only to provide examiners and the public with an understanding of the content of the present invention. A more intuitive and clear manner, rather than a limitation to the technical solution of the present invention. On the premise of not departing from the concept of the present invention, all other implementations that those skilled in the art can think of without creative work, as well as other simple replacements and various changes to the technical solutions of the present invention, all bel...

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Abstract

The invention relates to a production device for directly reducing iron, and particularly discloses an efficient reduction coal-based vertical furnace. The coal-based vertical furnace comprises a feedmechanism, a furnace body and a discharge mechanism. The furnace body comprises at least one reduction unit. Each reduction unit comprises a reduction chamber and two combustion chambers arranged onthe two sides of the reduction chamber. According to the efficient reduction coal-based vertical furnace, the problems that an existing coal-based vertical furnace is instable in product quality, highin energy consumption, short in furnace body service life, high in production cost, small in capacity scale and the like are solved, and the advantages of improving the reduction efficiency, improving the production scale, prolonging the service life of the furnace body and the like can be achieved.

Description

technical field [0001] The invention belongs to the field of direct reduced iron production devices, relates to a coal-based direct reduction shaft furnace, and specifically discloses a high-efficiency reduction coal-based shaft furnace. Background technique [0002] The so-called coal-based shaft furnace is to make ore powder into pellets or lump ore and mix them with reducing agent according to a certain ratio, then enter the reduction chamber from the top of the furnace body, and reduce the pellets to sponge iron through flame insulation heating, and then discharge from the bottom after cooling production equipment. [0003] At present, there are two types of direct reduction technologies for the production of sponge iron at home and abroad: gas-based and coal-based. Gas-based technology is relatively mature, but the investment is large and the process is complicated, so it is suitable for areas with abundant natural gas. Coal-based is suitable for areas lacking natural ...

Claims

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Application Information

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IPC IPC(8): C21B13/02
CPCC21B13/02
Inventor 李建涛张伯鹏陈泉锋夏文娟
Owner ZHENGZHOU ANLIANKAI IND CO LTD
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