Gas purging element and associated gas connection element

Patent metadata

Field	Value
Publication number	US-9879916-B2
Application number	US-201415037717-A
Country	US
Kind code	B2
Filing date	Nov 11, 2014
Priority date	Jan 9, 2014
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

Gas purging element ( 10 ) for metallurgical applications, comprising the following features in its mounted state: a ceramic refractory body ( 10, 30 ) with a lower end and an upper end, the upper end features an upper front surface, the lower end features a lower front surface ( 12 ), a depression ( 20 ) extends from the lower front surface ( 12 ) into the lower end of the ceramic refractory body ( 10 ), the depression ( 20 ) comprises a first part ( 16, 16′, 16″ ) of a detachable, form-fit connection to a gas connection element ( 50 ), a fluidic connection for a treating gas through at least one gas permeable section ( 30 ) of the ceramic refractory body ( 10 ) is provided between the depression ( 20 ) and the upper front surface.

First claim

The invention claimed is:

1. Gas purging element ( 10 ) for metallurgical applications, comprising the following features in its mounted state:
a) a ceramic refractory body ( 10 , 30 ) with a lower end and an upper end,
b) the upper end features an upper front surface,
c) the lower end features a lower front surface ( 12 ),
d) a depression ( 20 ) extends from the lower front surface ( 12 ) into the lower end of the ceramic refractory body ( 10 ),
e) the depression ( 20 ) contains a first part ( 16 , 16 ′, 16 ″) of a detachable, gas tight and form-fit connection to a gas connection element ( 50 ),
f) a fluidic connection for a treating gas through at least one gas permeable section ( 30 ) of the ceramic refractory body ( 10 ) is provided between the depression ( 20 ) and the upper front surface, wherein
g) said detachable, gas tight and form-fit connection is from the group comprising: a screw connection, a bayonet connection, a push-push quick connection and a push-twist quick connection.

2. Gas purging element according to claim 1 , wherein the depression ( 20 ), starting from the lower front surface ( 12 ), displays one of the following geometries: cylinder, cone, truncated cone, prism.

3. Gas purging element according to claim 1 with a gas distribution chamber ( 32 ) being arranged in the depression ( 20 ) or fluidly subsequent to the depression ( 20 ), towards the upper front surface.

4. Gas purging element according to claim 1 with a break through protection device against infiltrating metal melt being arranged in the depression ( 20 ) or fluidly subsequent to the depression ( 20 ), towards the upper front surface.

5. Gas purging element according to claim 1 , wherein the part ( 14 , 16 , 16 ′, 16 ″) of the depression ( 20 ) is in-situ formed within the refractory ceramic body ( 10 , 30 ).

6. Gas purging element according to claim 1 , wherein the part ( 14 , 16 , 16 ′, 16 ″) of the depression ( 20 ) is a discrete part.

7. Gas purging element according to claim 1 , wherein at least one gas permeable section ( 30 ) of the ceramic refractory body ( 10 ) extends from an inner end of the depression ( 20 ).

8. Gas purging element according to claim 7 , wherein that gas permeable section ( 30 ) of the refractory ceramic body ( 10 , 30 ), which is adjacent to the inner end of the depression ( 20 ), partially features a metal cover ( 22 ).

9. Gas purging element according to claim 1 with an outer metal envelope ( 40 ), which covers the lower end of the ceramic refractory body ( 10 , 30 ) circumferentially, the lower front surface ( 12 ) of the ceramic refractory body ( 10 , 30 ), or both.

10. Gas purging element according to claim 1 without any elements protruding the lower front surface ( 12 ).

11. Gas connection element ( 50 ) for a gas purging element according to claim 1 , with a first end and a second end ( 52 ), wherein the second end ( 52 ) is designed, correspondingly to the first part ( 14 , 16 , 16 ′, 16 ″) of the depression ( 20 ) of the gas purging element ( 10 ), as a complementary second part ( 52 ) of said detachable, form-fit connection with the gas purging element ( 10 ).

Assignees

• Refractory Intellectual Property Gmbh & Co Kg

Inventors

• Trummer Bernd
• Klikovich Michael
• Kulp Roman
• Kneis Leopold

Classifications

• B22D1/005

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• C21C5/34

  Blowing through the bath (C21C5/35 takes precedence) · CPC title

• C21C5/48

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• F27D17/002 Primary

  Mechanical Engineering · mapped topic

• F27D17/302 Primary

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