GB1283790A - Blast furnace stove control - Google Patents

Blast furnace stove control

Info

Publication number
GB1283790A
GB1283790A GB50748/70A GB5074870A GB1283790A GB 1283790 A GB1283790 A GB 1283790A GB 50748/70 A GB50748/70 A GB 50748/70A GB 5074870 A GB5074870 A GB 5074870A GB 1283790 A GB1283790 A GB 1283790A
Authority
GB
United Kingdom
Prior art keywords
controller
output
rate
flow
furnace gas
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
GB50748/70A
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.)
Jones and Laughlin Steel Corp
Original Assignee
Jones and Laughlin Steel Corp
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 Jones and Laughlin Steel Corp filed Critical Jones and Laughlin Steel Corp
Publication of GB1283790A publication Critical patent/GB1283790A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B9/00—Stoves for heating the blast in blast furnaces
    • C21B9/10—Other details, e.g. blast mains
    • C21B9/12—Hot-blast valves or slides for blast furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/005—Regulating fuel supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2221/00—Pretreatment or prehandling
    • F23N2221/10—Analysing fuel properties, e.g. density, calorific
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/02—Measuring filling height in burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/32—Technologies related to metal processing using renewable energy sources

Abstract

1283790 Programmed control of flow JONES & LAUCHLIN STEEL CORP 26 Oct 1970 [10 Nov 1969] 50748/70 Heading G3N The flow of blast-furnace gas, natural gas and combustion air, for heating a stove for cyclically pre-heating air to a blast furnace is controlled in dependence on a predetermined programme relating the temperature of the dome of the stove to the time during which the gases are heating the stove. As shown, the flow-rate of furnace gas on a line 12 to a burner is regulated by a pneumatic valve 17, controlled electrically in response to the output of a transducer 10, measuring the difference in pressure across an orifice 11 through a squareroot determining device 13, by a proportional and reset controller 15. The supply of natural gas mixing with the furnace gas at a junction 42 is similarly regulated by a valve 41 operated by a controller 35, as is the supply of combustion air on a line 24 by a controller 20 and valve 26. The controller 15 is set for the desired furnace gas flow-rate by a device 14. The controller 35 is set by a temperature comparison circuit comprising a profile function generator 30 the output of which represents the desired dome temperature with respect to time. The output of the generator is compared with the dome temperature, as sensed by a device 31, by a controller 32 having an output proportional to the temperature difference which is fed to a potentiometer 33. The set output of potentiometer 33 is fed to the natural gas rate controller 15 through a device 34, which is responsive to the actual blast furnace gas flow-rate from device 13 to keep the desired natural gas flow-rate below a preselected percentage of the actual furnace gas flowrate.
GB50748/70A 1969-11-10 1970-10-26 Blast furnace stove control Expired GB1283790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87534669A 1969-11-10 1969-11-10

Publications (1)

Publication Number Publication Date
GB1283790A true GB1283790A (en) 1972-08-02

Family

ID=25365642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50748/70A Expired GB1283790A (en) 1969-11-10 1970-10-26 Blast furnace stove control

Country Status (5)

Country Link
US (1) US3602487A (en)
DE (1) DE2054964A1 (en)
FR (1) FR2069721A5 (en)
GB (1) GB1283790A (en)
NL (1) NL7016341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7837928B2 (en) 2007-01-16 2010-11-23 U.S. Steel Canada Inc. Apparatus and method for injection of fluid hydrocarbons into a blast furnace

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887326A (en) * 1971-02-08 1975-06-03 Ici Ltd Kilns and furnaces
US3768955A (en) * 1972-06-26 1973-10-30 Universal Oil Prod Co Reactant ratio control process
US4033712A (en) * 1976-02-26 1977-07-05 Edmund D. Hollon Fuel supply systems
US4097218A (en) * 1976-11-09 1978-06-27 Mobil Oil Corporation Means and method for controlling excess air inflow
FI772751A (en) * 1976-12-14 1978-06-15 Measurex Corp EFFECTIVENESS AND EFFECTIVENESS OF EFFECTIVENESS FUNCTIONS
US4330261A (en) * 1979-09-17 1982-05-18 Atlantic Richfield Company Heater damper controller
US4369026A (en) * 1980-02-21 1983-01-18 Phillips Petroleum Company Control of the fuel/oxygen ratio for a combustion process
DE3037936A1 (en) * 1980-10-08 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart TEMPERATURE CONTROL DEVICE FOR GAS OR OIL HEATED WATER HEATERS
US4360336A (en) * 1980-11-03 1982-11-23 Econics Corporation Combustion control system
US4449918A (en) * 1981-07-06 1984-05-22 Selas Corporation Of America Apparatus for regulating furnace combustion
EP0121437A3 (en) * 1983-03-31 1985-01-23 Monarflex Limited Control system for a boiler or furnace
FR2544744B1 (en) * 1983-04-22 1989-11-17 Solmer OVEN BATTERY FOR HEATING INJECTED AIR IN A BLAST FURNACE AND AUTOMATIC DRIVING METHODS
US4576570A (en) * 1984-06-08 1986-03-18 Republic Steel Corporation Automatic combustion control apparatus and method
US4645450A (en) * 1984-08-29 1987-02-24 Control Techtronics, Inc. System and process for controlling the flow of air and fuel to a burner
GB8521663D0 (en) * 1985-08-30 1985-10-02 British Steel Corp Control of reactants in chemical engineering systems
US5168200A (en) * 1989-12-18 1992-12-01 Payne Kenneth R Automatic powered flowmeter valves and control thereof
US5532925A (en) * 1994-08-12 1996-07-02 Fisher Controls International, Inc. Current-to-pressure transducer with selectable, adjustable input filter
US6213758B1 (en) 1999-11-09 2001-04-10 Megtec Systems, Inc. Burner air/fuel ratio regulation method and apparatus
US20090142717A1 (en) * 2007-12-04 2009-06-04 Preferred Utilities Manufacturing Corporation Metering combustion control
WO2011065907A1 (en) * 2009-11-26 2011-06-03 Linde Ag Method for heatng a blast furnace stove
US9151492B2 (en) 2011-02-22 2015-10-06 Linde Aktiengesellschaft Heating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7837928B2 (en) 2007-01-16 2010-11-23 U.S. Steel Canada Inc. Apparatus and method for injection of fluid hydrocarbons into a blast furnace

Also Published As

Publication number Publication date
NL7016341A (en) 1971-05-12
FR2069721A5 (en) 1971-09-03
US3602487A (en) 1971-08-31
DE2054964A1 (en) 1971-05-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees