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Method and melt channels for interrupting and restoring the melt stream of iron and metal melts in tap hole channels of blast furnaces and drainage channels of melt furnaces

A technology of exit channel and discharge channel, applied in the field of melt flow of iron and metal melt, can solve problems such as expensive

Inactive Publication Date: 2011-09-07
TMT TAPPING MEASURING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this, expensive technical equipment is necessary

Method used

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  • Method and melt channels for interrupting and restoring the melt stream of iron and metal melts in tap hole channels of blast furnaces and drainage channels of melt furnaces
  • Method and melt channels for interrupting and restoring the melt stream of iron and metal melts in tap hole channels of blast furnaces and drainage channels of melt furnaces
  • Method and melt channels for interrupting and restoring the melt stream of iron and metal melts in tap hole channels of blast furnaces and drainage channels of melt furnaces

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Embodiment Construction

[0018] BF 1's in figure 1 The outlet channel 2 shown in FIG. 1 is formed by an outer tube 3 which is fixedly connected to a lining 5 of a blast furnace 1 and an inner tube 4 which is axially displaceable within the outer tube. The two tubes 3 , 4 consist of a high-strength material, preferably a ceramic material, and the material of the inner tube 4 for preventing abrasive wear due to escaping pig iron and escaping slag is additionally wear-resistant.

[0019] The inner tube 4 consists of a tube section 6 which is replaced at regular intervals by a new tube section 6a to compensate for the abrasive wear that occurs, wherein the new inner tube section 6a passes through the discharge opening 7 of the outlet channel 2 with the melt The flow direction a of the stream 8 is reversed into the outer tube 3 and at the same time the worn pipe section 6 b is pushed out of the outer tube 3 into the blast furnace 1 through the inlet 9 of the outlet channel 2 . The inner pipe section 6b, t...

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Abstract

The invention relates to a method for interrupting and restoring the melt stream of iron and metal melts in melt channels, in particular tap hole channels, of blast furnaces and drainage channels of melt furnaces. The method is characterized by a transition of the melt stream in the melt channels to the solidified state through cooling so that the melt stream can be interrupted, and by a melting of the solidified melt and a restoration of the melt stream through heating, in particular for re-establishing tapping of blast furnaces.

Description

technical field [0001] The invention relates to a method and a melt channel for interrupting and resuming the melt flow of iron and metal melt in outlet channels of blast furnaces and discharge channels of melting furnaces. Background technique [0002] In general, molten metal flows out of metallurgical vessels such as blast furnaces and furnaces and the like at certain time intervals. Subsequently, the melt flow is interrupted and starts flowing again at a later point in time. In order to interrupt the melt flow, there is a series of devices such as slide valves and flap valves. In blast furnaces, the plugging method is used almost exclusively at the outlet, in which a plastic mass specially developed for this purpose is pressed into the outlet channel by means of high pressure. The plug hardens in the outlet channel and must be drilled through for a renewed tapping process. For this, expensive technical equipment is necessary. [0003] DE 34 43 143 A1 describes a meth...

Claims

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Application Information

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IPC IPC(8): C21B7/14F27D3/15F27B1/21
CPCF27D3/1527F27D3/1509F27D3/1536C21B7/14
Inventor 克劳斯·斯皮斯菲利普·马利瓦尔克劳德·迈施卢奇·里夏茨彼得·克拉默汉斯-乌韦·莫根施特恩于尔根·皮坦拉尔夫·陶格贝克
Owner TMT TAPPING MEASURING TECH
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