ES8401778A1 - Recovery of energy from waste gas streams. - Google Patents

Recovery of energy from waste gas streams.

Info

Publication number
ES8401778A1
ES8401778A1 ES508728A ES508728A ES8401778A1 ES 8401778 A1 ES8401778 A1 ES 8401778A1 ES 508728 A ES508728 A ES 508728A ES 508728 A ES508728 A ES 508728A ES 8401778 A1 ES8401778 A1 ES 8401778A1
Authority
ES
Spain
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.)
Expired
Application number
ES508728A
Other languages
Spanish (es)
Other versions
ES508728A0 (en
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 ES508728A0 publication Critical patent/ES508728A0/en
Publication of ES8401778A1 publication Critical patent/ES8401778A1/en
Expired 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)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (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 metallurgical processing vessel (1) from which, in operation of the plant, there issues a stream of waste gas at superatmospheric 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).
ES508728A 1981-01-15 1982-01-14 Recovery of energy from waste gas streams. Expired ES8401778A1 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
ES508728A0 ES508728A0 (en) 1983-05-01
ES8401778A1 true ES8401778A1 (en) 1983-05-01

Family

ID=10518992

Family Applications (1)

Application Number Title Priority Date Filing Date
ES508728A Expired ES8401778A1 (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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK145029A (en) * 1966-06-23
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
JPS5377942A (en) * 1976-12-20 1978-07-10 Nippon Steel Corp Energy collect on system for turbine utilizing high pressured last at top furnace
GB2049820B (en) * 1979-05-18 1983-02-16 Hitachi Shipbuilding Eng Co Utilising blast furnace gas

Also Published As

Publication number Publication date
JPS57151026A (en) 1982-09-18
BR8200062A (en) 1982-10-26
PT74279A (en) 1982-02-01
ES508728A0 (en) 1983-05-01
EP0056710A2 (en) 1982-07-28
EP0056710A3 (en) 1984-03-28
PT74279B (en) 1983-08-23

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