JPS5629607A - Control of top pressure of blast surface - Google Patents

Control of top pressure of blast surface

Info

Publication number
JPS5629607A
JPS5629607A JP10525979A JP10525979A JPS5629607A JP S5629607 A JPS5629607 A JP S5629607A JP 10525979 A JP10525979 A JP 10525979A JP 10525979 A JP10525979 A JP 10525979A JP S5629607 A JPS5629607 A JP S5629607A
Authority
JP
Japan
Prior art keywords
pressure
control
opening degree
blast furnace
controller
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
JP10525979A
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.)
Hitachi Zosen Corp
Nippon Steel Corp
Original Assignee
Hitachi Zosen Corp
Sumitomo Metal Industries 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 filed Critical Hitachi Zosen Corp
Priority to JP10525979A priority Critical patent/JPS5629607A/en
Publication of JPS5629607A publication Critical patent/JPS5629607A/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

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 for a pressure controller by the nozzle angle of a gas turbine within a given range in the control of the top pressure of the blast furnace provided with a 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 pressure controller integrally with a dust remover, the opening degree of the control valve 23 of the pressure controller (secondary dust remover) 8 is detected by an upper and lower limits setter 27 in response to the signal 26 from a signal generator 25, and when the opening degree range reaches the upper limit of the control range, the output 28 of the setter 27 is put in a nozzle driver 29 of the gas turbine 12 and the nozzle angle is lowered to a preliminary pressure of the turbine 12. Thus, a given pressure difference is given to before and after the controller 8 to make the stable control of the control valve 23 possible. Also, the gas turbine matching the usual amount of gas can be used and its cost can be reduced.
JP10525979A 1979-08-17 1979-08-17 Control of top pressure of blast surface Pending JPS5629607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10525979A JPS5629607A (en) 1979-08-17 1979-08-17 Control of top pressure of blast surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10525979A JPS5629607A (en) 1979-08-17 1979-08-17 Control of top pressure of blast surface

Publications (1)

Publication Number Publication Date
JPS5629607A true JPS5629607A (en) 1981-03-25

Family

ID=14402650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10525979A Pending JPS5629607A (en) 1979-08-17 1979-08-17 Control of top pressure of blast surface

Country Status (1)

Country Link
JP (1) JPS5629607A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100433341B1 (en) * 2000-10-27 2004-05-27 주식회사 포스코 Method for controlling top gas pressure of blast furnace in top gas recuperation power
KR100993956B1 (en) * 2003-11-14 2010-11-11 주식회사 포스코 An apparatus for controlling top gas pressure when a top gas recovery plant is running

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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100433341B1 (en) * 2000-10-27 2004-05-27 주식회사 포스코 Method for controlling top gas pressure of blast furnace in top gas recuperation power
KR100993956B1 (en) * 2003-11-14 2010-11-11 주식회사 포스코 An apparatus for controlling top gas pressure when a top gas recovery plant is running

Similar Documents

Publication Publication Date Title
JPS5716719A (en) Method and equipment for controlling steam temperature in thermal power plant
JPS5629607A (en) Control of top pressure of blast surface
JPS56154134A (en) Distribution type fuel jet device
JPS5629604A (en) Control of top pressure of blast furnace
JPS5629605A (en) Control of top pressure of blast furnace
ES466922A1 (en) Method for recovering energy possessed by exhaust gas from blast furnace
JPS5629606A (en) Control of top pressure of blast furnace
JPS5692370A (en) Wind power generation device
JPS5625912A (en) Controlling method of top pressure of blast furnace
JPS5533529A (en) Combustion control method for combustion equipment which allows penetration of outside air
JPS5625914A (en) Control method of top pressure of blast furnace
JPS5432840A (en) Zero governer
JPS52106302A (en) Method and apparatus for controlling of blast furnace top pressure
JPS5426537A (en) Furnace pressure control method of batch type heating furnace with joint smoke stack
JPS5395402A (en) Pressure controller for atomic turbine
JPS5629603A (en) Control of top pressure of blast furnace
JPS5435813A (en) Controlling method for carbon content of reduced pellets
JPS5582226A (en) Method of controlling air/fuel ratio
JPS5625911A (en) Controlling method of top pressure of blast furnace
JPS5540010A (en) Setting and controlling method of welding conditions in arc welding
JPS6472466A (en) Combustion air flow controller
JPS5346410A (en) Controlling method for dust collector of exhaust gas from converter
JPS57131831A (en) Energy recovery method in furnace pressure recovery turbine generator system
JPS557933A (en) Steam turbin controller
JPS5498412A (en) Reactor gas energy recovering electric/power generation system