EP0056710A3 - Recovery of energy from waste gas streams - Google Patents

Recovery of energy from waste gas streams Download PDF

Info

Publication number
EP0056710A3
EP0056710A3 EP82300189A EP82300189A EP0056710A3 EP 0056710 A3 EP0056710 A3 EP 0056710A3 EP 82300189 A EP82300189 A EP 82300189A EP 82300189 A EP82300189 A EP 82300189A EP 0056710 A3 EP0056710 A3 EP 0056710A3
Authority
EP
European Patent Office
Prior art keywords
waste gas
voltage
energy
frequency
generator
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Withdrawn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
EP82300189A
Other languages
German (de)
French (fr)
Other versions
EP0056710A2 (en
Inventor
Brian Robert Reeve
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.)
ASEA Ltd
Original Assignee
ASEA Ltd
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 ASEA Ltd filed Critical ASEA Ltd
Publication of EP0056710A2 publication Critical patent/EP0056710A2/en
Publication of EP0056710A3 publication Critical patent/EP0056710A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/14—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours using industrial or other waste gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Protection Of Generators And Motors (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

In an iron- or steel-making plant comprising a metallur­ gical processing vessel (1) from which, in operation of the plant, there issues a stream of waste gas at superatmospher­ ic pressure and elevated temperature, there is provided means for recovering energy from the waste gas stream. This energy recovering means comprises means (6, 12) for supplying the gas stream to the inlet of a gas expander (16) which includes a rotor (18) drivable by the gas stream and comprising an output drive shaft (22), an alternating current generator (28) arranged to be driven by the shaft (22), and a voltage and frequency converter (32) having its input side connected to the electrical output of the generator (28) and its output side connected to an electrical power network (5). The converter (32) is of the kind which, over a predetermined range of the speed of rotation of the generator (28), delivers at its output side electric power at a voltage and frequency which at all times conform to the voltage and frequency of the network (5).
EP82300189A 1981-01-15 1982-01-14 Recovery of energy from waste gas streams Withdrawn EP0056710A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8101191 1981-01-15
GB8101191 1981-01-15

Publications (2)

Publication Number Publication Date
EP0056710A2 EP0056710A2 (en) 1982-07-28
EP0056710A3 true EP0056710A3 (en) 1984-03-28

Family

ID=10518992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82300189A Withdrawn EP0056710A3 (en) 1981-01-15 1982-01-14 Recovery of energy from waste gas streams

Country Status (5)

Country Link
EP (1) EP0056710A3 (en)
JP (1) JPS57151026A (en)
BR (1) BR8200062A (en)
ES (1) ES8401778A1 (en)
PT (1) PT74279B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509177A (en) * 1983-06-29 1985-04-02 Westinghouse Electric Corp. Electric arc-fired blast furnace system
DE3334221A1 (en) * 1983-08-25 1985-03-14 Mannesmann AG, 4000 Düsseldorf METHOD FOR PRODUCING LIQUID, CARBONATED IRON FROM IRON SPONGE
DE3900612A1 (en) * 1989-01-11 1990-07-12 Telefunken Systemtechnik EXHAUST TURBINE GENERATOR SYSTEM

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166196A (en) * 1966-06-23 1969-10-08 Licentia Gmbh Improved System for Producing Alternating Current
FR1589454A (en) * 1968-07-17 1970-03-31
US3998058A (en) * 1974-09-16 1976-12-21 Fast Load Control Inc. Method of effecting fast turbine valving for improvement of power system stability
GB1555917A (en) * 1976-12-20 1979-11-14 Nippon Steel Corp Recovery of energy from blast furnace exhaust gas
GB2049820A (en) * 1979-05-18 1980-12-31 Hitachi Shipbuilding Eng Co Utilising blast furnace gas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166196A (en) * 1966-06-23 1969-10-08 Licentia Gmbh Improved System for Producing Alternating Current
FR1589454A (en) * 1968-07-17 1970-03-31
US3998058A (en) * 1974-09-16 1976-12-21 Fast Load Control Inc. Method of effecting fast turbine valving for improvement of power system stability
GB1555917A (en) * 1976-12-20 1979-11-14 Nippon Steel Corp Recovery of energy from blast furnace exhaust gas
GB2049820A (en) * 1979-05-18 1980-12-31 Hitachi Shipbuilding Eng Co Utilising blast furnace gas

Also Published As

Publication number Publication date
ES508728A0 (en) 1983-05-01
PT74279A (en) 1982-02-01
JPS57151026A (en) 1982-09-18
ES8401778A1 (en) 1983-05-01
BR8200062A (en) 1982-10-26
PT74279B (en) 1983-08-23
EP0056710A2 (en) 1982-07-28

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19841128

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REEVE, BRIAN ROBERT