GB1534788A - Tuyeres for smelting shaft furnaces - Google Patents
Tuyeres for smelting shaft furnacesInfo
- Publication number
- GB1534788A GB1534788A GB3131976A GB3131976A GB1534788A GB 1534788 A GB1534788 A GB 1534788A GB 3131976 A GB3131976 A GB 3131976A GB 3131976 A GB3131976 A GB 3131976A GB 1534788 A GB1534788 A GB 1534788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- oxygen
- oxidizing gas
- fed
- tuyere
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Air Supply (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Gasification And Melting Of Waste (AREA)
- Manufacture Of Iron (AREA)
- Blast Furnaces (AREA)
Abstract
1534788 Tuyeres burners CREUSOT-LOIRE 27 July 1976 [14 Aug 1975 21 Oct 1975] 31319/76 Heading F4B and F4T In a blast furnace tuyere comprising three concentric conduits 5, 7 and 8, hot blast is fed through the central conduit 5, an unheated oxidizing gas, such as oxygen-enriched air, oxygen and water vapour, oxygen and carbon dioxide, or pure oxygen, is fed through the intermediate conduit, and a fluid or emulsion containing hydrocarbons is fed through the outer conduit. Powdered chalk or limestone may also be introduced into the blast furnace in suspension in the oxidizing gas flow, if required for slagging purposes. As shown in Fig. 1 cold pure oxygen is introduced tangentially into the intermediate conduit through an inlet 19, and hydrocarbon fluid tangentially into the outer conduit through inlet 20. The central conduit is of stainless steel, lined with a layer of cast refractory concrete 6, the intermediate conduit 7 of copper and the outer conduit 8 of steel. Hot blast is supplied to the central conduit 5 through a pipe 13. The ends of conduits 5, 7 and 8 project different distances into the blast furnace. When the delivery of oxidizing gas or hydrocarbons is interrupted, a scavenging blast of air, nitrogen or water vapour may be blown into the tuyere. In the alternative embodiment shown in Fig. 3 the inner surface of intermediate conduit 24 comprises a cylindrical portion 26 followed by a convergent section 27, a throat 28 and a divergent section 29, said conduit 24 also being provided with a ring of oblique passages 30 which open at 31 into the divergent section 29 a small distance from the throat 28 so that part of the hydrocarbon flow is atomized in the oxidizing gas stream just before it leaves the tuyere. The other conduit 32 terminates in a converging portion 35.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7525370A FR2320988A1 (en) | 1975-08-14 | 1975-08-14 | Blast furnace tuyere which is not water cooled - using three concentric pipes to supply hot blast, oxidising gas, and fuel |
FR7532091A FR2328773A2 (en) | 1975-10-21 | 1975-10-21 | Blast furnace tuyere which is not water cooled - using three concentric pipes to supply hot blast, oxidising gas, and fuel |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1534788A true GB1534788A (en) | 1978-12-06 |
Family
ID=26219032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3131976A Expired GB1534788A (en) | 1975-08-14 | 1976-07-27 | Tuyeres for smelting shaft furnaces |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS5238407A (en) |
AU (1) | AU497413B2 (en) |
BR (1) | BR7605265A (en) |
CA (1) | CA1086066A (en) |
CS (1) | CS205038B2 (en) |
DE (1) | DE2633061C3 (en) |
ES (1) | ES450668A1 (en) |
GB (1) | GB1534788A (en) |
IT (1) | IT1069683B (en) |
LU (1) | LU75587A1 (en) |
PL (1) | PL105509B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2193212A2 (en) * | 2007-08-29 | 2010-06-09 | Posco | Tuyere for manufacturing molten iron and method for injecting gas using the same |
US7837928B2 (en) | 2007-01-16 | 2010-11-23 | U.S. Steel Canada Inc. | Apparatus and method for injection of fluid hydrocarbons into a blast furnace |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5481347A (en) * | 1977-12-12 | 1979-06-28 | Konishiroku Photo Ind | Method of applying coating material |
DE2850175C2 (en) * | 1978-11-18 | 1987-01-22 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Planing system |
JP2606507B2 (en) * | 1991-10-29 | 1997-05-07 | 日本鋼管株式会社 | Tuyere for blast furnace |
DE4136274A1 (en) * | 1991-11-04 | 1993-05-06 | Kortec Ag, Zug, Ch | METHOD AND DEVICE FOR PROTECTING A BLOWING DEVICE ARRANGED IN A HOT WIND LINE OF A BLAST FURNACE |
LU91543B1 (en) * | 2009-03-24 | 2010-09-27 | Wurth Paul Sa | Tuyere stock arrangement for a blast furnace and method for operating a blast furnace |
-
1976
- 1976-07-22 DE DE19762633061 patent/DE2633061C3/en not_active Expired
- 1976-07-27 GB GB3131976A patent/GB1534788A/en not_active Expired
- 1976-08-02 JP JP9224976A patent/JPS5238407A/en active Pending
- 1976-08-05 PL PL19164476A patent/PL105509B1/en unknown
- 1976-08-09 CS CS517176A patent/CS205038B2/en unknown
- 1976-08-11 IT IT6900476A patent/IT1069683B/en active
- 1976-08-12 BR BR7605265A patent/BR7605265A/en unknown
- 1976-08-12 LU LU75587A patent/LU75587A1/xx unknown
- 1976-08-13 CA CA259,069A patent/CA1086066A/en not_active Expired
- 1976-08-13 AU AU16839/76A patent/AU497413B2/en not_active Expired
- 1976-08-13 ES ES450668A patent/ES450668A1/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7837928B2 (en) | 2007-01-16 | 2010-11-23 | U.S. Steel Canada Inc. | Apparatus and method for injection of fluid hydrocarbons into a blast furnace |
EP2193212A2 (en) * | 2007-08-29 | 2010-06-09 | Posco | Tuyere for manufacturing molten iron and method for injecting gas using the same |
EP2193212A4 (en) * | 2007-08-29 | 2012-06-13 | Posco | Tuyere for manufacturing molten iron and method for injecting gas using the same |
Also Published As
Publication number | Publication date |
---|---|
CS205038B2 (en) | 1981-04-30 |
CA1086066A (en) | 1980-09-23 |
BR7605265A (en) | 1977-08-09 |
IT1069683B (en) | 1985-03-25 |
LU75587A1 (en) | 1977-03-28 |
ES450668A1 (en) | 1977-11-16 |
PL105509B1 (en) | 1979-10-31 |
JPS5238407A (en) | 1977-03-25 |
DE2633061A1 (en) | 1977-02-17 |
DE2633061C3 (en) | 1980-02-14 |
DE2633061B2 (en) | 1979-06-13 |
AU497413B2 (en) | 1978-12-14 |
AU1683976A (en) | 1978-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |