GB1488976A - Apparatus for injecting hot reducing gas into a shaft furnace - Google Patents

Apparatus for injecting hot reducing gas into a shaft furnace

Info

Publication number
GB1488976A
GB1488976A GB1173375A GB1173375A GB1488976A GB 1488976 A GB1488976 A GB 1488976A GB 1173375 A GB1173375 A GB 1173375A GB 1173375 A GB1173375 A GB 1173375A GB 1488976 A GB1488976 A GB 1488976A
Authority
GB
United Kingdom
Prior art keywords
plasma arc
gas
reducing gas
tuyþre
injection tube
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
Application number
GB1173375A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB1488976A publication Critical patent/GB1488976A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C21B5/002—Heated electrically (plasma)
    • 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)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Blast Furnaces (AREA)
  • Furnace Details (AREA)
  • Plasma Technology (AREA)

Abstract

1488976 Injecting reducing gas into a shaft furnace CENTRE DE RECHERCHES METALLURGIQUES - CENTRUM VOOR RESEARCH IN DE METALLURGIE 20 March 1975 [29 March 1974] 11733/75 Heading F4B [Also in Division H5] Apparatus for injecting hot reducing gas into a shaft furnace comprises a duct 4 that supplies reducing gas or a gas consisting of a mixture of hydrocarbon gas to be reformed and oxidizing gas to a tuyÞre 6 via an injection tube 5 that is coaxial with the tuyÞre. The injection tube is either wholly or only partly constituted by a plasma arc furnace enclosure 9, in which heat is supplied by a plasma arc generated by plasma arc torches 15. The injection tube may have two plasma arc furnaces in series with the reducing gas being produced by one plasma arc furnace and heated by the other. The plasma arc furnace enclosure 9 may have three radial plasma arc torches spaced at 120 degrees from one another with each torch connected to one phase of a three-phase electrical supply the neutral point of which is on the common longitudinal axis 10, 11 of the tube 5 and tuyÞre 6. The stability of the electric arcs may be assisted by adding compounds that can be easily ionized such as alkali metal or alkaline-earth metal compounds to the plasma generating gas.
GB1173375A 1974-03-29 1975-03-20 Apparatus for injecting hot reducing gas into a shaft furnace Expired GB1488976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE6044528A BE813118A (en) 1974-03-29 1974-03-29 DEVICE FOR INJECTING HOT REDUCING GAS INTO A TANK OVEN AND IMPLEMENTATION PROCEDURE.

Publications (1)

Publication Number Publication Date
GB1488976A true GB1488976A (en) 1977-10-19

Family

ID=3874571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1173375A Expired GB1488976A (en) 1974-03-29 1975-03-20 Apparatus for injecting hot reducing gas into a shaft furnace

Country Status (8)

Country Link
JP (1) JPS50130617A (en)
BE (1) BE813118A (en)
CA (1) CA1050265A (en)
DE (1) DE2512178C3 (en)
FR (1) FR2265863B1 (en)
GB (1) GB1488976A (en)
LU (1) LU72058A1 (en)
NL (1) NL7502814A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149629A (en) * 1983-11-07 1985-06-12 Skf Steel Eng Ab Sealing means for burner/reactor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421553A (en) * 1980-05-06 1983-12-20 Centre De Recherches Metallurgiques Process for operating a blast furnace
AT384007B (en) * 1984-04-02 1987-09-25 Voest Alpine Ag METHOD FOR PRODUCING SYNTHESIS GAS AND DEVICE FOR IMPLEMENTING THE METHOD
FR2576403B1 (en) * 1985-01-21 1987-03-06 Siderurgie Fse Inst Rech DEVICE FOR COOLING A PIPE ON WHICH A SECONDARY PIPE FOR THE SUPPLY OF A SUPERHEATED GAS IS STITCHED
SE500956C2 (en) * 1991-01-17 1994-10-10 Ssab Tunnplaat Ab Blast position with carbon injection lance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149629A (en) * 1983-11-07 1985-06-12 Skf Steel Eng Ab Sealing means for burner/reactor

Also Published As

Publication number Publication date
FR2265863B1 (en) 1979-01-05
CA1050265A (en) 1979-03-13
DE2512178A1 (en) 1975-10-09
BE813118A (en) 1974-09-30
LU72058A1 (en) 1975-08-20
NL7502814A (en) 1975-10-01
FR2265863A1 (en) 1975-10-24
DE2512178C3 (en) 1979-02-08
JPS50130617A (en) 1975-10-16
DE2512178B2 (en) 1978-06-01

Similar Documents

Publication Publication Date Title
ATE18621T1 (en) PLASMA TORCHES OPERATED BY GAS MIXTURES.
GB1221317A (en) A plasma arc generator
GB1527093A (en) Magnetic spheroidized beads
GB892448A (en) Arc torch
US3246115A (en) Arc compounded combustion and flame arrangement
GB1125241A (en) Direct conversion chemical processing arc heater
NO124232B (en)
GB1488976A (en) Apparatus for injecting hot reducing gas into a shaft furnace
GB1068174A (en) Improvements relating to electric furnaces
ATE110221T1 (en) LIQUID-COOLED PLASMA TORCH WITH TRANSFERRED ARC.
US20170058220A1 (en) Modular Hybrid Plasma Gasifier for Use in Converting Combustible Material to Synthesis Gas
GB1102900A (en) Electrometallurgical reduction of minerals in an electric furnace
GB2064992A (en) Flame guniting lance
GB1499451A (en) Method and apparatus for melting metals
US3749802A (en) Vessel preheating method and apparatus
GB1072121A (en) Treatment of metal
JPS555125A (en) Plasma arc build-up welding method by powder metals or other
SE300857B (en)
FR2234382A1 (en) Partially oxidised molybdenum coatings - deposited using plasma torch to give a surface of increased coefft of friction
GB1027504A (en) Improvements in and relating to electric welding
JPS5236508A (en) Process for producing low-carbon, low-nitrogen high alloy steel by use of plasma arc furnace
SU792614A1 (en) Electric-arc gas heater
GB1065046A (en) Arc heater for use with three-phase alternating current source
GB1132580A (en) Plasma torches
GB1140884A (en) Improvements in or relating to energy conversion processes and apparatus

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee