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JPS5629606A - Control of top pressure of blast furnace - Google Patents

Control of top pressure of blast furnace

Info

Publication number
JPS5629606A
JPS5629606A JP10525879A JP10525879A JPS5629606A JP S5629606 A JPS5629606 A JP S5629606A JP 10525879 A JP10525879 A JP 10525879A JP 10525879 A JP10525879 A JP 10525879A JP S5629606 A JPS5629606 A JP S5629606A
Authority
JP
Japan
Prior art keywords
control
valve
pressure
top pressure
blast 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.)
Pending
Application number
JP10525879A
Other languages
Japanese (ja)
Inventor
Katsunobu Udagawa
Masahiro Motoshige
Nobushige Saho
Iwao Abe
Toshio Kawasaki
Kyoji Nishino
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.)
Nippon Steel Corp
Kanadevia Corp
Original Assignee
Hitachi Zosen Corp
Sumitomo Metal Industries Ltd
Hitachi Shipbuilding and Engineering Co 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 Hitachi Zosen Corp, Sumitomo Metal Industries Ltd, Hitachi Shipbuilding and Engineering Co Ltd filed Critical Hitachi Zosen Corp
Priority to JP10525879A priority Critical patent/JPS5629606A/en
Publication of JPS5629606A publication Critical patent/JPS5629606A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/007—Controlling or regulating of the top pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

PURPOSE:To attain the stable control of the top pressure of the blast furnace and the enhancement of energy recovery rate by controlling the opening degree of a control valve of a pressure controller by a by-pass valve of a power generator within a control range in the control of the top pressure of the blast furnace provided with the pressure recovery power generator. CONSTITUTION:In the control of the top pressure of the blast furnace 3 provided with the pressure recovery power generator 11, using a controller integrally with a dust remover, an anomaly of the opening degree indicating valve (in case it exceeds a control range) of the control valve 23 of the pressure controller (secondary dust remover) 8 is detected by an upper and lower limits setter 33, and its output 34 is put in a driving device of a by-pass valve 18 of the power generator 11 to control the valve within the control range by operating the valve 18. Thus, the top pressure can be stably controlled, a gas turbine can be compacted to a comparatively small size, and setting to make maximum efficiency possible can be made possible and therefore the recovery rate of energy can be raised.
JP10525879A 1979-08-17 1979-08-17 Control of top pressure of blast furnace Pending JPS5629606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10525879A JPS5629606A (en) 1979-08-17 1979-08-17 Control of top pressure of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10525879A JPS5629606A (en) 1979-08-17 1979-08-17 Control of top pressure of blast furnace

Publications (1)

Publication Number Publication Date
JPS5629606A true JPS5629606A (en) 1981-03-25

Family

ID=14402621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10525879A Pending JPS5629606A (en) 1979-08-17 1979-08-17 Control of top pressure of blast furnace

Country Status (1)

Country Link
JP (1) JPS5629606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153532A (en) * 1983-02-22 1984-09-01 Sumitomo Light Metal Ind Ltd Production of heat exchanger
US4625378A (en) * 1983-05-09 1986-12-02 Matsushita Refrigeration Company Method of manufacturing fin-tube heat exchangers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144309A (en) * 1975-05-24 1976-12-11 Bischoff Gasreinigung Throat gas purifier for highhpressure shaft furnace

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144309A (en) * 1975-05-24 1976-12-11 Bischoff Gasreinigung Throat gas purifier for highhpressure shaft furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153532A (en) * 1983-02-22 1984-09-01 Sumitomo Light Metal Ind Ltd Production of heat exchanger
JPH0147259B2 (en) * 1983-02-22 1989-10-13 Sumitomo Light Metal Ind
US4625378A (en) * 1983-05-09 1986-12-02 Matsushita Refrigeration Company Method of manufacturing fin-tube heat exchangers

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