EP0289965A3 - Device for modifying the cross-sectional area of a pneumatic transport conduit, and its use in the injection of solid fuels into a shaft furnace - Google Patents

Device for modifying the cross-sectional area of a pneumatic transport conduit, and its use in the injection of solid fuels into a shaft furnace Download PDF

Info

Publication number
EP0289965A3
EP0289965A3 EP88106959A EP88106959A EP0289965A3 EP 0289965 A3 EP0289965 A3 EP 0289965A3 EP 88106959 A EP88106959 A EP 88106959A EP 88106959 A EP88106959 A EP 88106959A EP 0289965 A3 EP0289965 A3 EP 0289965A3
Authority
EP
European Patent Office
Prior art keywords
modifying
injection
cross
sectional area
shaft furnace
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.)
Withdrawn
Application number
EP88106959A
Other languages
German (de)
French (fr)
Other versions
EP0289965A2 (en
Inventor
Louis Schmit
Radomir Andonov
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.)
Paul Wurth SA
Original Assignee
Paul Wurth SA
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 Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP0289965A2 publication Critical patent/EP0289965A2/en
Publication of EP0289965A3 publication Critical patent/EP0289965A3/en
Withdrawn legal-status Critical Current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
    • C21B5/003—Injection of pulverulent coal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/02—Pneumatic feeding arrangements, i.e. by air blast

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Le dispositif comporte un cylindre (12) monté de façon rotative dans un bloc de support (10) qui est tra­ versé, tangentiellement par rapport au cylindre (12) , par ladite conduite (14), tandis que le cylindre présente, au niveau de ladite conduite (14), au moins une première rainure périphérique (18) dont la profondeur varie entre un minimum et un maximum qui correspond au diamètre de la conduite à l'endroit où celle-ci est tangentiellement au cylindre (12). The device comprises a cylinder (12) mounted from rotatably in a support block (10) which is tra poured, tangentially to the cylinder (12), by said pipe (14), while the cylinder has, at said line (14), at least a first peripheral groove (18) whose depth varies between a minimum and a maximum which corresponds to the diameter of the driving to where it is tangentially to cylinder (12).

EP88106959A 1987-05-07 1988-04-30 Device for modifying the cross-sectional area of a pneumatic transport conduit, and its use in the injection of solid fuels into a shaft furnace Withdrawn EP0289965A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU86870A LU86870A1 (en) 1987-05-07 1987-05-07 DEVICE FOR MODIFYING THE SECTION OF A PNEUMATIC CONVEYOR AND APPLICATION TO THE INJECTION OF SOLID FUELS IN A TANK OVEN
LU86870 1987-05-07

Publications (2)

Publication Number Publication Date
EP0289965A2 EP0289965A2 (en) 1988-11-09
EP0289965A3 true EP0289965A3 (en) 1989-06-28

Family

ID=19730917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106959A Withdrawn EP0289965A3 (en) 1987-05-07 1988-04-30 Device for modifying the cross-sectional area of a pneumatic transport conduit, and its use in the injection of solid fuels into a shaft furnace

Country Status (6)

Country Link
EP (1) EP0289965A3 (en)
JP (1) JPS63311018A (en)
AU (1) AU1479588A (en)
BR (1) BR8802363A (en)
LU (1) LU86870A1 (en)
ZA (1) ZA882781B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944579C (en) * 1950-05-12 1956-06-21 Steinmueller Gmbh L & C Firing system with fuel blowing task
GB1364049A (en) * 1970-07-24 1974-08-21 Demurger Cie Ets Sawing method
GB2056027A (en) * 1979-08-09 1981-03-11 Bougainville Copper Ltd A Valve
EP0108319A2 (en) * 1982-11-10 1984-05-16 Paul Wurth S.A. Injection arrangement of dosed quantities of pulverulent materials in a pneumatic propulsion fluid and application to the injection of solid fuels into a shaft furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944579C (en) * 1950-05-12 1956-06-21 Steinmueller Gmbh L & C Firing system with fuel blowing task
GB1364049A (en) * 1970-07-24 1974-08-21 Demurger Cie Ets Sawing method
GB2056027A (en) * 1979-08-09 1981-03-11 Bougainville Copper Ltd A Valve
EP0108319A2 (en) * 1982-11-10 1984-05-16 Paul Wurth S.A. Injection arrangement of dosed quantities of pulverulent materials in a pneumatic propulsion fluid and application to the injection of solid fuels into a shaft furnace

Also Published As

Publication number Publication date
LU86870A1 (en) 1989-01-19
EP0289965A2 (en) 1988-11-09
AU1479588A (en) 1988-11-10
BR8802363A (en) 1988-12-13
ZA882781B (en) 1988-10-20
JPS63311018A (en) 1988-12-19

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