FR2317513A1 - Two stage turbine driven by blast furnace exhaust gases - has valve to bypass second stage at low gas pressure - Google Patents

Two stage turbine driven by blast furnace exhaust gases - has valve to bypass second stage at low gas pressure

Info

Publication number
FR2317513A1
FR2317513A1 FR7620656A FR7620656A FR2317513A1 FR 2317513 A1 FR2317513 A1 FR 2317513A1 FR 7620656 A FR7620656 A FR 7620656A FR 7620656 A FR7620656 A FR 7620656A FR 2317513 A1 FR2317513 A1 FR 2317513A1
Authority
FR
France
Prior art keywords
stage
blast furnace
bypass
valve
exhaust gases
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.)
Granted
Application number
FR7620656A
Other languages
French (fr)
Other versions
FR2317513B1 (en
Inventor
Masanobu Inubushi
Osamu Nishiyama
Tokio Nakagawa
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Publication of FR2317513A1 publication Critical patent/FR2317513A1/en
Application granted granted Critical
Publication of FR2317513B1 publication Critical patent/FR2317513B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/002—Evacuating and treating of exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The blast furnace (3) is supplied with air from the fan (1) and heater (2). The exhaust gases from the blast furnace (3) then pass through a cooler (4) and dust extractor (5). The gases then pass through a system of control valves (7, 8, 9, 10) to the two-stage turbine (11) which drives the generator (14). When the pressure of the gases is high, they pass through both stages (11a, 11b) of the turbine. When the pressure is low, a valve in the low pressure line is closed and the gases flow directly through the bypass (24) to the outlet. The bypass valve enables the turbine to work at maximum efficiency over a wide pressure range.
FR7620656A 1975-07-07 1976-07-06 Two stage turbine driven by blast furnace exhaust gases - has valve to bypass second stage at low gas pressure Granted FR2317513A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50083774A JPS526854A (en) 1975-07-07 1975-07-07 Multi-stage exhaust gas energy recovering turbine plant with an exhaus t gas switching valve in the middle of stage

Publications (2)

Publication Number Publication Date
FR2317513A1 true FR2317513A1 (en) 1977-02-04
FR2317513B1 FR2317513B1 (en) 1982-02-12

Family

ID=13811940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7620656A Granted FR2317513A1 (en) 1975-07-07 1976-07-06 Two stage turbine driven by blast furnace exhaust gases - has valve to bypass second stage at low gas pressure

Country Status (3)

Country Link
JP (1) JPS526854A (en)
BR (1) BR7604412A (en)
FR (1) FR2317513A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404738A1 (en) * 1977-09-30 1979-04-27 Mitsui Shipbuilding Eng Protection of blast furnace gas driven turbine - operates gas-cooling water spray and stop valve when furnace blowout occurs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60194057A (en) * 1984-03-16 1985-10-02 Daiichi Meteko Kk Thermal spraying method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2125183A1 (en) * 1971-02-17 1972-09-29 Wendel Sidelor
US3855788A (en) * 1972-05-22 1974-12-24 Carrier Corp Apparatus for and a method of operating power recovery equipment
FR2249944A1 (en) * 1973-11-06 1975-05-30 Bischoff Gasreinigung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2125183A1 (en) * 1971-02-17 1972-09-29 Wendel Sidelor
US3855788A (en) * 1972-05-22 1974-12-24 Carrier Corp Apparatus for and a method of operating power recovery equipment
FR2249944A1 (en) * 1973-11-06 1975-05-30 Bischoff Gasreinigung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404738A1 (en) * 1977-09-30 1979-04-27 Mitsui Shipbuilding Eng Protection of blast furnace gas driven turbine - operates gas-cooling water spray and stop valve when furnace blowout occurs

Also Published As

Publication number Publication date
BR7604412A (en) 1978-01-31
FR2317513B1 (en) 1982-02-12
JPS526854A (en) 1977-01-19

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Legal Events

Date Code Title Description
ST Notification of lapse