CA2407478A1 - Integral side wall and tap hole cover for an eccentric bottom tap (ebt) furnace - Google Patents
Integral side wall and tap hole cover for an eccentric bottom tap (ebt) furnace Download PDFInfo
- Publication number
- CA2407478A1 CA2407478A1 CA002407478A CA2407478A CA2407478A1 CA 2407478 A1 CA2407478 A1 CA 2407478A1 CA 002407478 A CA002407478 A CA 002407478A CA 2407478 A CA2407478 A CA 2407478A CA 2407478 A1 CA2407478 A1 CA 2407478A1
- Authority
- CA
- Canada
- Prior art keywords
- side wall
- tap
- enclosed space
- hole cover
- liquid coolant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/12—Working chambers or casings; Supports therefor
- F27B3/16—Walls; Roofs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/24—Cooling arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
- F27D2009/0016—Water-spray
Abstract
Spray cooled side wall and tap hole cover for an eccentric bottom tap (EBT) electric furnace which is unitary, i.e. piece, and has an inter-connected coolant supply and inter-connected spent coolant drain.
Claims (6)
1. Integral unitary side wall and tap hole cover for an eccentric bottom tap electric furnace comprising:
(i) a substantially vertical hollow side wall of generally circular cross-section supported by the generally circular portion of an eccentric bottom tap electric furnace for surrounding at least one graphite electrode extending downwardly into the eccentric bottom tap electric furnace, said side wall having (a) an inner base metal member forming the inner portion of the hollow side wall;
(b) an outer metal covering member spaced from said inner metal base member;
(c) means for joining the outer metal covering member to the inner metal base member and for defining a substantially enclosed space between said inner metal base member and said metal covering member, said substantially enclosed space having a lowermost portion with at least one outer liquid drain opening being located at the lowermost portion of the enclosed space;
(d) a plurality of spray means located within said enclosed space at predetermined peripheral locations adjacent to and spaced from said inner metal base member for directing a spray of liquid coolant in the form of liquid droplets against the inner metal base member in an amount sufficient to maintain an acceptable temperature in said inner metal base member.
(e) a liquid coolant supply header within said enclosed space of said side wall extending peripherally along the inner metal base member for supplying liquid coolant to said plurality of spray means;
(f) at least one liquid coolant drain outlet means in communication with said at least one drain opening for receiving a flow of liquid coolant from inside of said enclosed space;
(ii) a liquid coolant supply conduit for supplying liquid to said liquid coolant supply header;
(iii) a hollow tap hole cover fixedly attached to said hollow side wall and extending away from said hollow side wall to overlie a tap hole portion of the eccentric bottom tap electric furnace, said hollow tap hole cover having an enclosed space and a lower plate affixed to the inner base metal member of said side wall and being directly over the tap-hole portion of the electric furnace and defining an opening for introducing sand into the tap-hole of the electric furnace, said enclosed space of the tap hole cover having a lowermost portion with at least one liquid coolant drain opening located at the lowermost portion of the enclosed space of the tap hole cover, the lowermost portion of the tap hole cover being in communication with the substantially enclosed space between the inner metal base member and metal covering member of said side wall;
(a) a plurality of spray means located within the enclosed space of the tap-hole cover for directing a spray of liquid coolant in the form of liquid droplets against its lower plate in an amount sufficient to maintain an acceptable temperature in said lower plate;
(b) at least one liquid coolant drain outlet means for receiving a flow of liquid coolant from inside said enclosed space; and (c) conduit means within the enclosed space of the tap hole cover for supplying liquid coolant to the plurality of spray means within the enclosed space of the tap-hole cover, said conduit means being connected to the liquid coolant supply header within the enclosed space of the side wall.
(i) a substantially vertical hollow side wall of generally circular cross-section supported by the generally circular portion of an eccentric bottom tap electric furnace for surrounding at least one graphite electrode extending downwardly into the eccentric bottom tap electric furnace, said side wall having (a) an inner base metal member forming the inner portion of the hollow side wall;
(b) an outer metal covering member spaced from said inner metal base member;
(c) means for joining the outer metal covering member to the inner metal base member and for defining a substantially enclosed space between said inner metal base member and said metal covering member, said substantially enclosed space having a lowermost portion with at least one outer liquid drain opening being located at the lowermost portion of the enclosed space;
(d) a plurality of spray means located within said enclosed space at predetermined peripheral locations adjacent to and spaced from said inner metal base member for directing a spray of liquid coolant in the form of liquid droplets against the inner metal base member in an amount sufficient to maintain an acceptable temperature in said inner metal base member.
(e) a liquid coolant supply header within said enclosed space of said side wall extending peripherally along the inner metal base member for supplying liquid coolant to said plurality of spray means;
(f) at least one liquid coolant drain outlet means in communication with said at least one drain opening for receiving a flow of liquid coolant from inside of said enclosed space;
(ii) a liquid coolant supply conduit for supplying liquid to said liquid coolant supply header;
(iii) a hollow tap hole cover fixedly attached to said hollow side wall and extending away from said hollow side wall to overlie a tap hole portion of the eccentric bottom tap electric furnace, said hollow tap hole cover having an enclosed space and a lower plate affixed to the inner base metal member of said side wall and being directly over the tap-hole portion of the electric furnace and defining an opening for introducing sand into the tap-hole of the electric furnace, said enclosed space of the tap hole cover having a lowermost portion with at least one liquid coolant drain opening located at the lowermost portion of the enclosed space of the tap hole cover, the lowermost portion of the tap hole cover being in communication with the substantially enclosed space between the inner metal base member and metal covering member of said side wall;
(a) a plurality of spray means located within the enclosed space of the tap-hole cover for directing a spray of liquid coolant in the form of liquid droplets against its lower plate in an amount sufficient to maintain an acceptable temperature in said lower plate;
(b) at least one liquid coolant drain outlet means for receiving a flow of liquid coolant from inside said enclosed space; and (c) conduit means within the enclosed space of the tap hole cover for supplying liquid coolant to the plurality of spray means within the enclosed space of the tap-hole cover, said conduit means being connected to the liquid coolant supply header within the enclosed space of the side wall.
2. Integral unitary side wall and tap hole cover for an eccentric bottom tap electric furnace in accordance with claim 1 wherein said hollow tap hole cover has vertical side portions which extend tangentially and convergingly away from the hollow side wall.
3. Integral unitary side wall and tap hole cover for an eccentric bottom tap electric furnace in accordance with claim 1 wherein the lowermost portion of the tap hole cover is in the form of a trough from which liquid coolant can flow by gravity from the tap hole cover into the enclosed space between the inner metal base member and metal covering member of said side wall.
4. Integral unitary side wall~and tap hole cover for an eccentric bottom tap electric furnace in accordance with claim 1 wherein the lower plate of the tap hole cover has an arched crossed-section and conformably contacts the inner metal base member of the side wall and a metal strip is provided which is welded to said lower plate and inner metal base member to cover the conformal contact between said lower plate and said inner metal base member.
5. Integral unitary side wall and tap hole cover for an eccentric bottom tap electric furnace in accordance with claim 1 wherein the tap hole cover is provided with an upper covering element which affixed by welding to the outer metal covering member of the side wall.
6. Integral unitary side wall and tap hole cover for an eccentric bottom tap electric furnace comprising:
(i) a substantially vertical hollow side wall of generally circular cross-section supported by the generally circular portion of an eccentric bottom tap electric furnace for surrounding at least one graphite electrode extending downwardly into the eccentric bottom tap electric furnace, said side wall having (a) an inner base metal member forming the inner portion of the hollow side wall;
(b) an outer metal covering member spaced from said inner metal base member;
(c) means for joining the outer metal covering member to the inner metal base member and for defining a substantially enclosed space between said inner metal base member and said metal covering member, said substantially enclosed space having a lowermost portion with at least one outer liquid drain opening being located at the lowermost portion of the enclosed space;
(d) a plurality of spray means located within said enclosed space at predetermined peripheral locations adjacent to and spaced from said inner metal base member for directing a spray liquid coolant in the form of liquid droplets against the inner metal base member in an amount sufficient to maintain an acceptable temperature in said inner metal base member;
(e) a liquid coolant supply header within said enclosed space of said side wall extending peripherally along the inner metal base for supplying liquid coolant to said plurality of spray means;
(f) at least one liquid coolant drain outlet means in communication with said at least one drain opening for receiving a flow of liquid coolant from inside of said enclosed space;
(ii) a liquid coolant supply conduit for supplying liquid to said liquid coolant supply header;
(iii) a hollow tap hole cover fixedly attached to said hollow side wall and extending tangentially and convergingly away from said hollow side wall to overlie a tap hole portion of the eccentric bottom tap electric furnace, said hollow tap hole cover having an enclosed space and an arch shaped lower plate affixed at a conformal contact to the inner base metal member of said side wall by welding and being directly over the tap-hole portion of the electric,furnace and defining an opening for introducing sand into the tap-hole of the electric furnace, said enclosed space of the tap hole cover having a lowermost portion in the shape of a trough with at least one liquid coolant drain opening located at said trough, said trough being in communication with the substantially enclosed space between the inner metal base member and metal covering member of said side wall to permit the flow by gravity of coolant from the tap hole cover to the enclosed space of the side wall;
(a) a plurality of spray means located within the enclosed space of the tap-hole cover for directing a spray liquid coolant in the form of liquid droplets against its lower panel in an amount sufficient to maintain an acceptable temperature in said lower panel;
(b) at least one liquid coolant drain outlet means for receiving a flow of liquid coolant from inside said enclosed space of said hollow tap hole;
(c) conduit means within the enclosed space of the tap hole cover fob supplying liquid coolant to the plurality of spray means within the enclosed space of the tap-hole cover, said conduit means being connected to the liquid coolant supply header within the enclosed space of the side wall.
(iv) a metal strip welded to said lower panel and said inner metal base member to cover the conformal contact there between; and (v) lifting lugs attached to said hollow side wall and said hollow tap hole cover for lifting as one piece.
(i) a substantially vertical hollow side wall of generally circular cross-section supported by the generally circular portion of an eccentric bottom tap electric furnace for surrounding at least one graphite electrode extending downwardly into the eccentric bottom tap electric furnace, said side wall having (a) an inner base metal member forming the inner portion of the hollow side wall;
(b) an outer metal covering member spaced from said inner metal base member;
(c) means for joining the outer metal covering member to the inner metal base member and for defining a substantially enclosed space between said inner metal base member and said metal covering member, said substantially enclosed space having a lowermost portion with at least one outer liquid drain opening being located at the lowermost portion of the enclosed space;
(d) a plurality of spray means located within said enclosed space at predetermined peripheral locations adjacent to and spaced from said inner metal base member for directing a spray liquid coolant in the form of liquid droplets against the inner metal base member in an amount sufficient to maintain an acceptable temperature in said inner metal base member;
(e) a liquid coolant supply header within said enclosed space of said side wall extending peripherally along the inner metal base for supplying liquid coolant to said plurality of spray means;
(f) at least one liquid coolant drain outlet means in communication with said at least one drain opening for receiving a flow of liquid coolant from inside of said enclosed space;
(ii) a liquid coolant supply conduit for supplying liquid to said liquid coolant supply header;
(iii) a hollow tap hole cover fixedly attached to said hollow side wall and extending tangentially and convergingly away from said hollow side wall to overlie a tap hole portion of the eccentric bottom tap electric furnace, said hollow tap hole cover having an enclosed space and an arch shaped lower plate affixed at a conformal contact to the inner base metal member of said side wall by welding and being directly over the tap-hole portion of the electric,furnace and defining an opening for introducing sand into the tap-hole of the electric furnace, said enclosed space of the tap hole cover having a lowermost portion in the shape of a trough with at least one liquid coolant drain opening located at said trough, said trough being in communication with the substantially enclosed space between the inner metal base member and metal covering member of said side wall to permit the flow by gravity of coolant from the tap hole cover to the enclosed space of the side wall;
(a) a plurality of spray means located within the enclosed space of the tap-hole cover for directing a spray liquid coolant in the form of liquid droplets against its lower panel in an amount sufficient to maintain an acceptable temperature in said lower panel;
(b) at least one liquid coolant drain outlet means for receiving a flow of liquid coolant from inside said enclosed space of said hollow tap hole;
(c) conduit means within the enclosed space of the tap hole cover fob supplying liquid coolant to the plurality of spray means within the enclosed space of the tap-hole cover, said conduit means being connected to the liquid coolant supply header within the enclosed space of the side wall.
(iv) a metal strip welded to said lower panel and said inner metal base member to cover the conformal contact there between; and (v) lifting lugs attached to said hollow side wall and said hollow tap hole cover for lifting as one piece.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/578,103 | 2000-05-24 | ||
| US09/578,103 US6185242B1 (en) | 2000-05-24 | 2000-05-24 | Integral side wall and tap hole cover for an eccentric bottom tap (EBT) electric furnace |
| PCT/US2000/028885 WO2001090670A1 (en) | 2000-05-24 | 2000-11-07 | Integral side wall and tap hole cover for an eccentric bottom tap (ebt) furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2407478A1 true CA2407478A1 (en) | 2001-11-29 |
| CA2407478C CA2407478C (en) | 2011-01-18 |
Family
ID=24311454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2407478A Expired - Lifetime CA2407478C (en) | 2000-05-24 | 2000-11-07 | Integral side wall and tap hole cover for an eccentric bottom tap (ebt) furnace |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6185242B1 (en) |
| EP (1) | EP1285208B1 (en) |
| JP (1) | JP4762476B2 (en) |
| KR (1) | KR100697454B1 (en) |
| AT (1) | ATE280376T1 (en) |
| AU (2) | AU2001215725B2 (en) |
| BR (1) | BR0017113B1 (en) |
| CA (1) | CA2407478C (en) |
| DE (1) | DE60015192T2 (en) |
| ES (1) | ES2235995T3 (en) |
| MX (1) | MXPA02011330A (en) |
| NZ (1) | NZ520634A (en) |
| WO (1) | WO2001090670A1 (en) |
| ZA (1) | ZA200206410B (en) |
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| US8306907B2 (en) | 2003-05-30 | 2012-11-06 | Jpmorgan Chase Bank N.A. | System and method for offering risk-based interest rates in a credit instrument |
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-
2000
- 2000-05-24 US US09/578,103 patent/US6185242B1/en not_active Expired - Lifetime
- 2000-11-07 NZ NZ520634A patent/NZ520634A/en not_active IP Right Cessation
- 2000-11-07 EP EP00978246A patent/EP1285208B1/en not_active Expired - Lifetime
- 2000-11-07 BR BRPI0017113-1A patent/BR0017113B1/en not_active IP Right Cessation
- 2000-11-07 CA CA2407478A patent/CA2407478C/en not_active Expired - Lifetime
- 2000-11-07 KR KR1020027014216A patent/KR100697454B1/en active IP Right Grant
- 2000-11-07 ES ES00978246T patent/ES2235995T3/en not_active Expired - Lifetime
- 2000-11-07 WO PCT/US2000/028885 patent/WO2001090670A1/en active IP Right Grant
- 2000-11-07 AU AU2001215725A patent/AU2001215725B2/en not_active Expired
- 2000-11-07 DE DE60015192T patent/DE60015192T2/en not_active Expired - Lifetime
- 2000-11-07 JP JP2001586400A patent/JP4762476B2/en not_active Expired - Lifetime
- 2000-11-07 AU AU1572501A patent/AU1572501A/en active Pending
- 2000-11-07 AT AT00978246T patent/ATE280376T1/en not_active IP Right Cessation
- 2000-11-07 MX MXPA02011330A patent/MXPA02011330A/en active IP Right Grant
-
2002
- 2002-08-12 ZA ZA200206410A patent/ZA200206410B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE60015192T2 (en) | 2006-03-09 |
| EP1285208A1 (en) | 2003-02-26 |
| AU1572501A (en) | 2001-12-03 |
| ES2235995T3 (en) | 2005-07-16 |
| JP4762476B2 (en) | 2011-08-31 |
| BR0017113B1 (en) | 2010-01-26 |
| CA2407478C (en) | 2011-01-18 |
| ZA200206410B (en) | 2003-11-12 |
| KR20030022787A (en) | 2003-03-17 |
| DE60015192D1 (en) | 2004-11-25 |
| ATE280376T1 (en) | 2004-11-15 |
| NZ520634A (en) | 2004-08-27 |
| JP2003534520A (en) | 2003-11-18 |
| BR0017113A (en) | 2003-01-14 |
| EP1285208B1 (en) | 2004-10-20 |
| KR100697454B1 (en) | 2007-03-20 |
| MXPA02011330A (en) | 2003-04-25 |
| AU2001215725B2 (en) | 2005-05-05 |
| WO2001090670A1 (en) | 2001-11-29 |
| US6185242B1 (en) | 2001-02-06 |
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