Fireproof ceramic plug

A technology of refractory ceramics and plugs, which is applied in the field of refractory ceramic plugs and can solve problems such as irregularities in melt flow properties

Inactive Publication Date: 2012-04-11
REFRACTORY INTELLECTUAL PRORERTY GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been proven that irregularities in the melt flow properties always reoccur during operation

Method used

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  • Fireproof ceramic plug
  • Fireproof ceramic plug
  • Fireproof ceramic plug

Examples

Experimental program
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Embodiment Construction

[0042] according to image 3 The stopper consists of a refractory ceramic body 10. In the axial direction of the plug there is an opening 16 extending from the first end 12 to the second end 14 and thus from an inlet 22 for process gas to a connection with a bottom 26 Part 24.

[0043] A gas channel 18 extends from a connection point 24 of the opening 16 to a surface section 20 of the object 10 in the region of the second end 14 . The cross-sectional area of ​​the gas channel 18 is approximately 1 / 10 of the cross-sectional area of ​​the opening 16 .

[0044] Arranged along the opening 16 is a filling object 30 which forms a section by which the opening 16 is subdivided into an upper region 32 and a lower region 34 . The filling body 30 extends over the entire cross section of the opening 16 and has a central through-opening 36 which connects the segments 32 , 34 to one another. The flow cross-section of the through-opening 36 is significantly smaller than the cross-section...

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PUM

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Abstract

The invention relates to a fireproof ceramic plug for controlling a metal flow flowing past in the area of an outlet opening of a metallurgical furnace crucible, such as a tundish.

Description

technical field [0001] The invention relates to a refractory ceramic plug for regulating the flow of a metal melt in the outlet area of ​​a metallurgical melt vessel, for example a tundish. Background technique [0002] One such plug is generally constructed as follows: It has a rod-shaped body having a first end and a second end, wherein the body is composed of at least one refractory ceramic material. Rod-shaped is understood in the technical sense, that is to say, the length of an object is much greater than its diameter / its width. A pocket-shaped opening extends from the first end of the body in the axial direction of the body to the second end, wherein the opening reaches a connection point with a bottom, and the connection point is in front of the second end of the body termination. A so-called feed point is provided at the first end of the body, since here a process gas, in particular an inert gas such as argon, is introduced into the opening of the plug. [0003] ...

Claims

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Application Information

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IPC IPC(8): B22D2/00B22D41/18
CPCB22D2/00B22D41/186
Inventor G.尼茨尔C.埃格尔塞尔
Owner REFRACTORY INTELLECTUAL PRORERTY GMBH & CO KG
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