GB1448263A - Rotary ore-reducing kilns - Google Patents

Rotary ore-reducing kilns

Info

Publication number
GB1448263A
GB1448263A GB5035973A GB5035973A GB1448263A GB 1448263 A GB1448263 A GB 1448263A GB 5035973 A GB5035973 A GB 5035973A GB 5035973 A GB5035973 A GB 5035973A GB 1448263 A GB1448263 A GB 1448263A
Authority
GB
United Kingdom
Prior art keywords
valve
fuel
air
kiln
rotary
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
GB5035973A
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.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers Corp
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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Publication of GB1448263A publication Critical patent/GB1448263A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
    • 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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/36—Arrangements of air or gas supply devices
    • F27B7/362—Introducing gas into the drum axially or through the wall
    • 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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/36—Arrangements of air or gas supply devices
    • F27B7/362—Introducing gas into the drum axially or through the wall
    • F27B2007/367—Introducing gas into the drum axially or through the wall transversally through the wall of the drum
    • 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
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/02—Supplying steam, vapour, gases, or liquids
    • F27D2007/026—Dampers
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0068—Regulation involving a measured inflow of a particular gas in the enclosure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Manufacture Of Iron (AREA)
  • Furnace Details (AREA)

Abstract

1448263 Supplying gases to rotary kilns ALLIS-CHALMERS CORP 30 Oct 1973 [31 Oct 1972] 50359/73 Heading F4B In a rotary ore reducing kiln 6 with an internal burner 11, fluid fuel and air from conduits 14 and 16 are distributed to nozzles 12 spaced along said kiln by fluid distribution apparatus 17 including a three-way valve 18 and rotary valve operating mechanism so arranged that fuel is supplied to each nozzle when it is below the charge in the kiln and air is aupplied to each nozzle when it is above the charger. Each valve spindle 27 carries a cam plate 34 with cams 37, 38, 39 and 41, which, as the kiln rotates are engaged in turn to index the plate by trip devices 29, 31, 32 and 33. The latter operate each valve to a "fuel-on", "fuel-off", "air-on" and "air-off" position producing the aforementioned distribution of fuel and air. The valve operating mechanism for each rotary valve may comprise a solenoid valve operatively connected to a fluid motor connected to the rotary valve and arranged for selective actuation according to the position of the nozzle associated with the valve operating mechanism as the kiln rotates.
GB5035973A 1972-10-31 1973-10-30 Rotary ore-reducing kilns Expired GB1448263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30260672A 1972-10-31 1972-10-31

Publications (1)

Publication Number Publication Date
GB1448263A true GB1448263A (en) 1976-09-02

Family

ID=23168481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5035973A Expired GB1448263A (en) 1972-10-31 1973-10-30 Rotary ore-reducing kilns

Country Status (15)

Country Link
US (1) US3794483A (en)
JP (1) JPS5232723B2 (en)
AU (1) AU465274B2 (en)
BR (1) BR7308532D0 (en)
CA (1) CA989611A (en)
ES (1) ES420116A1 (en)
FR (1) FR2205182A5 (en)
GB (1) GB1448263A (en)
IN (1) IN140689B (en)
IT (1) IT996352B (en)
NL (1) NL7314873A (en)
NO (1) NO134768C (en)
OA (1) OA04566A (en)
SE (1) SE402128B (en)
ZA (1) ZA738405B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH609443A5 (en) * 1976-04-15 1979-02-28 Soreb Societe Pour La Rech L E Method for forced blowing of fluids making possible physical or chemical exchanges in a mass of material in movement
US4070149A (en) * 1976-07-23 1978-01-24 Allis-Chalmers Corporation Controllable distribution system for rotary kiln
DE2728561C3 (en) * 1976-08-06 1981-02-05 Gosudarstvennyj Vsesojuznyj Nautschno-Issledovatelskij Institut Cementnoj Promyschlennosti Niicement, Moskau Setting for controlling mechanisms arranged on a rotating unit, in particular jacket gas nozzles on a rotary kiln
FR2399722A1 (en) * 1977-08-04 1979-03-02 Aimants Ugimag Sa Magnetic mounting tape for papers - has flexible magnet and ferromagnetic material folding together to grip paper
US4208181A (en) * 1978-11-13 1980-06-17 Allis-Chalmers Corporation Liquid metering and distribution arrangement for rotary reactor
US4209292A (en) * 1978-11-13 1980-06-24 Allis-Chalmers Corporation Fluid storage and distribution arrangement mounted on rotary reactor
US4214707A (en) * 1979-07-23 1980-07-29 Allis-Chalmers Corporation Trap-port for rotary kilns
JPS56100622U (en) * 1979-12-28 1981-08-07
US4373909A (en) * 1981-11-23 1983-02-15 Allis-Chalmers Corporation Gas injecting kiln shell nozzle with particle entry barriers
US4373908A (en) * 1981-11-23 1983-02-15 Allis-Chalmers Corporation Kiln shell nozzle with annular fluid delivery
US4591362A (en) * 1984-04-06 1986-05-27 Phillips Petroleum Company Fluid injection method
US6221127B1 (en) 1999-11-10 2001-04-24 Svedala Industries, Inc. Method of pyroprocessing mineral ore material for reducing combustion NOx
US6474984B2 (en) 2000-11-20 2002-11-05 Metso Minerals Industries, Inc. Air injection for nitrogen oxide reduction and improved product quality
US6568653B1 (en) 2002-01-15 2003-05-27 Metso Minerals Industries, Inc. Butterfly valve actuation system for ported kiln
AT504452B1 (en) * 2006-10-19 2008-08-15 Holcim Ltd METHOD FOR INTRODUCING WASTE MATERIALS AND / OR ALTERNATIVE FUELS INTO A PIPE MANUFACTURING METHOD AND DEVICE FOR CARRYING OUT THIS METHOD

Also Published As

Publication number Publication date
DE2354604A1 (en) 1974-05-09
JPS4976707A (en) 1974-07-24
ZA738405B (en) 1975-06-25
NL7314873A (en) 1974-05-02
OA04566A (en) 1980-05-31
DE2354604B2 (en) 1975-09-04
US3794483A (en) 1974-02-26
NO134768B (en) 1976-08-30
ES420116A1 (en) 1976-07-01
AU465274B2 (en) 1975-09-25
BR7308532D0 (en) 1974-08-15
FR2205182A5 (en) 1974-05-24
AU6187173A (en) 1975-05-01
CA989611A (en) 1976-05-25
NO134768C (en) 1976-12-08
IN140689B (en) 1976-12-11
JPS5232723B2 (en) 1977-08-23
IT996352B (en) 1975-12-10
SE402128B (en) 1978-06-19

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Legal Events

Date Code Title Description
49R Reference inserted (sect. 9/1949)
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee