US2264423A - Blast furnace receiving hopper - Google Patents
Blast furnace receiving hopper Download PDFInfo
- Publication number
- US2264423A US2264423A US292535A US29253539A US2264423A US 2264423 A US2264423 A US 2264423A US 292535 A US292535 A US 292535A US 29253539 A US29253539 A US 29253539A US 2264423 A US2264423 A US 2264423A
- Authority
- US
- United States
- Prior art keywords
- plates
- blast furnace
- receiving hopper
- hopper
- furnace receiving
- 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.)
- Expired - Lifetime
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-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
Definitions
- This invention relates to blast furnace receiving hoppers.
- a hopper is used at the top of a blast furnace to receive the charging materials hoisted to this position, the hopper guiding these materials into the little bell.
- the casting of these plates requires patterns and the skilled services of foundry workmen. Furthermore, although the patterns may be perfectly made, the castings are subject, while cooling, to warping to such an extent that they cannot be used. It follows that this practice of using these cast manganese steel wearing plates adds considerably to the construction and maintenance costs of a blast furnace.
- One of the objects of the present inventor is V to construct a blast furnace receiving hopper at less cost than has been heretofore possible and which will have, at the same time, a comparable or superior service life. Furthermore, it is the inventors desire to enable the construction of such a hopper by less skilled labor than is required in the fabrication and assembly of a hopper lined with the mentioned castings.
- the plates 2- are cut so that when laid, on a flat surface they form the pattern shown by Figure 4.
- the adjacent edges ,of these various plates 2 are brought into abutting. relation they form the hopper shell described, the abutting edges being interwelded with their upper and lower ends, respectively, welded to top and bottom flanges 3 and 4.
- the attachment of the'shell to the framework l may be effected in any convenient manner that is sufficiently sturdy.
- the wearing plates are made from fiat rolled, abrasive resistant steel instead of being cast in the manner of the prior art. These wearing .notrequire highly skilled labor.
- plates are in the form of a plurality of segments 5, each of the plates 2 mounting a plurality of these segments 5 along its length, the plates 2 and the segments or wearing plates 5 being provided with mutually registering apertures 6 through which fasteners may be passed to removably fix the wearing plates in position.
- plates 5 are made in the form of relatively small segmentsis so that they may be cut from a relatively narrow strip of flat rolled, abrasive resistant steel, Figure 6 indicating how they may be cut from such a narrow strip. It is to be understood that this is not thin gaged strip but is a relatively heavy gaged product which might just as apprbpriately be called narrow plate.
- the wearing plates may be cut from the fiat rolled, abrasive resistant product by any convenient means at hand.
- a blast furnace receiving hopper having wearing plates formed from flat rolled, abrasive resistant steel, said hopper being of polygonal shape, free from curved plane surfaces and with a multiplicity of flat plane surfaces forming its contour, said plates being fiat and vfitted onto said surfaces so they can be fabricated by appropriately cutting the flat steel from which they are formed.
- a blast furnace receiving hopper having wearing plates formed from flat, abrasive resistant steel, said hopper being of polygonal shape, free from curved plane surfaces and with amultiplicityof flat plane surfaces forming its .contour, said plates being flat and fitted on said surfaces so they can be fabricated by appropriately shaping the flat steel from which they are formed.
Description
Dec. 2, 1941. R,-L WINGENRCSTH 2,264,423
BLAST FURNACE RECEIVING HOPPER Filed Aug. 29, 1939 2 Sheets-Sheet 1 for L. l V/NGENEOTH,
Dec. 2, 1941. R. 1.. WINGENROTH 2,264,423
' BLAST FURNACE RECEIVING HOPPER Filed Aug. 29, 1939 2 Sheefs-Sheet 2 Patented Dee. 2, 1941 "UNITED STATES PATENT OFFICE BLAST FURNACE RECEIVING HOPPER Roy L. Wingenroth, Pittsburgh, Pa.
Application August 29, 1999, Serial No. 292,535
2 Claims.
This invention relates to blast furnace receiving hoppers. Such a hopper is used at the top of a blast furnace to receive the charging materials hoisted to this position, the hopper guiding these materials into the little bell. It is customary to line these hoppers withwearing plates in the form of castings of manganese steel. The casting of these plates requires patterns and the skilled services of foundry workmen. Furthermore, although the patterns may be perfectly made, the castings are subject, while cooling, to warping to such an extent that they cannot be used. It follows that this practice of using these cast manganese steel wearing plates adds considerably to the construction and maintenance costs of a blast furnace.
One of the objects of the present inventor is V to construct a blast furnace receiving hopper at less cost than has been heretofore possible and which will have, at the same time, a comparable or superior service life. Furthermore, it is the inventors desire to enable the construction of such a hopper by less skilled labor than is required in the fabrication and assembly of a hopper lined with the mentioned castings.
'A specific example of the invention is illustrated plates 2, forming its contour. In'other words, the.
shell does not provide curved surfaces requiring the services ofhighly skilled 'boilermakers for its construction.
The plates 2- are cut so that when laid, on a flat surface they form the pattern shown by Figure 4. When the adjacent edges ,of these various plates 2 are brought into abutting. relation they form the hopper shell described, the abutting edges being interwelded with their upper and lower ends, respectively, welded to top and bottom flanges 3 and 4. The attachment of the'shell to the framework l may be effected in any convenient manner that is sufficiently sturdy.
The wearing plates are made from fiat rolled, abrasive resistant steel instead of being cast in the manner of the prior art. These wearing .notrequire highly skilled labor.
plates are in the form of a plurality of segments 5, each of the plates 2 mounting a plurality of these segments 5 along its length, the plates 2 and the segments or wearing plates 5 being provided with mutually registering apertures 6 through which fasteners may be passed to removably fix the wearing plates in position.
ing plates completely protecting the shell of the hopper against abrasion.
The reason the plates 5 are made in the form of relatively small segmentsis so that they may be cut from a relatively narrow strip of flat rolled, abrasive resistant steel, Figure 6 indicating how they may be cut from such a narrow strip. It is to be understood that this is not thin gaged strip but is a relatively heavy gaged product which might just as apprbpriately be called narrow plate.
Here again, it is to be observed that no bending is required, the wearing plates 5 all being hat The fitting and fastening of these plates to the plates 2 comprising the hopper shell, does Furthermore,
' the fabrication of the plates 5, it being understood that these must be-replaced as wear destroys their usefulness, is an operation requiring only reasonably skilled workmen, it being unnecessary to work to extremely close tolerances other than is normally required in the fabrication of structural steel parts. The wearing plates may be cut from the fiat rolled, abrasive resistant product by any convenient means at hand.
I claim: v
1. A blast furnace receiving hopper having wearing plates formed from flat rolled, abrasive resistant steel, said hopper being of polygonal shape, free from curved plane surfaces and with a multiplicity of flat plane surfaces forming its contour, said plates being fiat and vfitted onto said surfaces so they can be fabricated by appropriately cutting the flat steel from which they are formed.
2. A blast furnace receiving hopper having wearing plates formed from flat, abrasive resistant steel, said hopper being of polygonal shape, free from curved plane surfaces and with amultiplicityof flat plane surfaces forming its .contour, said plates being flat and fitted on said surfaces so they can be fabricated by appropriately shaping the flat steel from which they are formed.
ROYFL. WINGENROTH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US292535A US2264423A (en) | 1939-08-29 | 1939-08-29 | Blast furnace receiving hopper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US292535A US2264423A (en) | 1939-08-29 | 1939-08-29 | Blast furnace receiving hopper |
Publications (1)
Publication Number | Publication Date |
---|---|
US2264423A true US2264423A (en) | 1941-12-02 |
Family
ID=23125076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US292535A Expired - Lifetime US2264423A (en) | 1939-08-29 | 1939-08-29 | Blast furnace receiving hopper |
Country Status (1)
Country | Link |
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US (1) | US2264423A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3085674A (en) * | 1959-05-29 | 1963-04-16 | Western Velo & Cement Specialt | Unloaders |
US3206181A (en) * | 1963-06-18 | 1965-09-14 | United States Steel Corp | Blast-furnace bell hopper with abrasion-resistant interior and method of construction |
US6056914A (en) * | 1998-03-11 | 2000-05-02 | Van Dril; William A. | Apparatus for charging a shaft-type cupola furnace |
US6102562A (en) * | 1999-05-04 | 2000-08-15 | Jenike & Johanson, Inc. | Removable container insert |
US20030165948A1 (en) * | 2001-03-09 | 2003-09-04 | Alsmadi Osama A. | Method and compositions for efficient and specific rolling circle amplification |
US20040126770A1 (en) * | 2002-12-31 | 2004-07-01 | Gyanendra Kumar | Rolling circle amplification of RNA |
US7553619B2 (en) | 2002-02-08 | 2009-06-30 | Qiagen Gmbh | Detection method using dissociated rolling circle amplification |
US7618776B2 (en) | 1995-11-21 | 2009-11-17 | Yale University | Rolling circle replication reporter systems |
US8043834B2 (en) | 2003-03-31 | 2011-10-25 | Qiagen Gmbh | Universal reagents for rolling circle amplification and methods of use |
US8309303B2 (en) | 2005-04-01 | 2012-11-13 | Qiagen Gmbh | Reverse transcription and amplification of RNA with simultaneous degradation of DNA |
US9487823B2 (en) | 2002-12-20 | 2016-11-08 | Qiagen Gmbh | Nucleic acid amplification |
US9683255B2 (en) | 2005-09-09 | 2017-06-20 | Qiagen Gmbh | Method for activating a nucleic acid for a polymerase reaction |
-
1939
- 1939-08-29 US US292535A patent/US2264423A/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3085674A (en) * | 1959-05-29 | 1963-04-16 | Western Velo & Cement Specialt | Unloaders |
US3206181A (en) * | 1963-06-18 | 1965-09-14 | United States Steel Corp | Blast-furnace bell hopper with abrasion-resistant interior and method of construction |
US7618776B2 (en) | 1995-11-21 | 2009-11-17 | Yale University | Rolling circle replication reporter systems |
US6056914A (en) * | 1998-03-11 | 2000-05-02 | Van Dril; William A. | Apparatus for charging a shaft-type cupola furnace |
US6102562A (en) * | 1999-05-04 | 2000-08-15 | Jenike & Johanson, Inc. | Removable container insert |
US20030165948A1 (en) * | 2001-03-09 | 2003-09-04 | Alsmadi Osama A. | Method and compositions for efficient and specific rolling circle amplification |
US7553619B2 (en) | 2002-02-08 | 2009-06-30 | Qiagen Gmbh | Detection method using dissociated rolling circle amplification |
US9487823B2 (en) | 2002-12-20 | 2016-11-08 | Qiagen Gmbh | Nucleic acid amplification |
US6977153B2 (en) | 2002-12-31 | 2005-12-20 | Qiagen Gmbh | Rolling circle amplification of RNA |
US20040126770A1 (en) * | 2002-12-31 | 2004-07-01 | Gyanendra Kumar | Rolling circle amplification of RNA |
US8043834B2 (en) | 2003-03-31 | 2011-10-25 | Qiagen Gmbh | Universal reagents for rolling circle amplification and methods of use |
US8309303B2 (en) | 2005-04-01 | 2012-11-13 | Qiagen Gmbh | Reverse transcription and amplification of RNA with simultaneous degradation of DNA |
US9683255B2 (en) | 2005-09-09 | 2017-06-20 | Qiagen Gmbh | Method for activating a nucleic acid for a polymerase reaction |
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