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Method for operating a pit furnace, in particular a blast furnace

A well-type furnace and shock wave technology, applied in the field of blast furnace, can solve the problems of not realizing reaction improvement, small reaction improvement, etc.

Active Publication Date: 2020-06-02
THYSSENKRUPP STEEL EURO AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The solution described in EP 1 948 833 B1 has the disadvantage that no or only a slight improvement in the reaction is achieved outside the "circulation zone"

Method used

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  • Method for operating a pit furnace, in particular a blast furnace

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Embodiment Construction

[0032] exist figure 1 A schematic structure of a device for carrying out the method according to the invention is shown in . A furnace 1 in the form of a blast furnace has around its circumference a plurality of lances 2 , via which the introduction of shock waves or process gases into the furnace 1 from the outside takes place. These lances 2 are ideally inserted into the tuyeres or tuyeres of the furnace 1 . In order to influence or optimize other reaction zones of the pit furnace or blast furnace, suitable introduction openings can be provided at these points.

[0033] A separate device 3 for generating shock waves or for introducing process gas can be connected to each lance 2 or at the introduction point. Depending on the amount of process gas required, the strength of the shock wave and the size or circumference of the furnace, one device 3 can supply several nozzles 2 or several introduction locations. It is thus also possible to supply all nozzle tubes 2 or introducti...

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Abstract

The invention shows and describes a method for operating a pit furnace, in particular a blast furnace, in which at least one gas is introduced into the furnace (1). In order to achieve an acceleration of the reaction process in the furnace (1), shock waves are introduced into the furnace (1).

Description

technical field [0001] The invention relates to a method for operating a pit furnace, in particular a blast furnace, wherein at least one gas is introduced into the furnace. Background technique [0002] A pit furnace is a furnace whose basic geometry is "well-like". The height of a pit furnace usually exceeds its width and its depth by several times. The basic shape of a pit furnace usually corresponds to a hollow cylinder, a hollow cone or a combination of these two shapes. Combustion, reduction and melting processes generally take place in pit furnaces, the gases produced in the furnace climbing upwards. Pit furnaces are used for heating or as metallurgical plants for the production of pure metals from ores, for the further processing of metals or for the production of other materials. [0003] A special form of the pit furnace is the blast furnace, by means of which liquid metals, at least pig iron, can be produced from ores in a continuous reduction process and melti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B1/16F27D3/16F27D19/00C21C5/00
CPCC21C5/00F27B1/16F27D3/16F27D19/00F27D2003/164F27D2003/163C21B7/16
Inventor 马丁·坎纳佩尔赖纳·克洛克
Owner THYSSENKRUPP STEEL EURO AG
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