JPS6296620A - Preheating method and equipment for continuous heat treatment of metal strip - Google Patents

Preheating method and equipment for continuous heat treatment of metal strip

Info

Publication number
JPS6296620A
JPS6296620A JP23626985A JP23626985A JPS6296620A JP S6296620 A JPS6296620 A JP S6296620A JP 23626985 A JP23626985 A JP 23626985A JP 23626985 A JP23626985 A JP 23626985A JP S6296620 A JPS6296620 A JP S6296620A
Authority
JP
Japan
Prior art keywords
preheating
exhaust gas
temp
steel strip
combustion
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.)
Withdrawn
Application number
JP23626985A
Other languages
Japanese (ja)
Inventor
Norihisa Shiraishi
Toshiyuki Hashime
Takeo Fukushima
Kanaaki Hyodo
Original Assignee
Kawasaki Steel Corp
Mitsubishi Heavy Ind 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 Kawasaki Steel Corp, Mitsubishi Heavy Ind Ltd filed Critical Kawasaki Steel Corp
Priority to JP23626985A priority Critical patent/JPS6296620A/en
Publication of JPS6296620A publication Critical patent/JPS6296620A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE: To improve heat efficiency and productivity of annealing equipment, by raising the temp. of exhaust gas of heating zone with combustion exhaust gas, etc., then utilizing it for preheating steel strip in its continuous annealing equipment.
CONSTITUTION: Steel strip is preheated, then heated and annealed in reducing atmosphere by a radiant tube 1 at continuous annealing of steel strip. Since temp. of exhaust gas exhausted from the tube 1 is low as 300W500°C, it is introduced to a combustion furnace 10 through a duct 9. A fuel 11 and an air 12 preheated at a preheater 19 are burnt by a burner 13 at the furnace 10 and sent as 700W1,100°C high temp. combustion gas to a heat exchanger 14 together with exhaust gas from a duct 9 to heat and supply heating medium to hollow rolls 17-1W17-n for preheating steel strip to the vicinity of annealing temp. at heating zone, and exhaust gas from the exchanger 14 is utilized for preheating combustion air for the furnace 10. heat efficiency including to heating zone after preheating is markedly improved and productivity of continuous annealing is improved.
COPYRIGHT: (C)1987,JPO&Japio
JP23626985A 1985-10-24 1985-10-24 Preheating method and equipment for continuous heat treatment of metal strip Withdrawn JPS6296620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23626985A JPS6296620A (en) 1985-10-24 1985-10-24 Preheating method and equipment for continuous heat treatment of metal strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23626985A JPS6296620A (en) 1985-10-24 1985-10-24 Preheating method and equipment for continuous heat treatment of metal strip

Publications (1)

Publication Number Publication Date
JPS6296620A true JPS6296620A (en) 1987-05-06

Family

ID=16998276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23626985A Withdrawn JPS6296620A (en) 1985-10-24 1985-10-24 Preheating method and equipment for continuous heat treatment of metal strip

Country Status (1)

Country Link
JP (1) JPS6296620A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168821A (en) * 1987-12-24 1989-07-04 Kawasaki Steel Corp Method for heating metal strip
KR100815978B1 (en) 2001-11-12 2008-03-24 주식회사 포스코 Device for pre-heating air of batch annealing furnace
KR101239587B1 (en) 2007-10-12 2013-03-05 쥬가이로 고교 가부시키가이샤 Continuous metal strip heat treating apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741330A (en) * 1980-08-26 1982-03-08 Nippon Steel Corp Preheater for steel strip
JPS57198219A (en) * 1981-05-29 1982-12-04 Nippon Steel Corp Preheating method for continuous steel strip by waste gas of radiant tube zone
JPS5873727A (en) * 1981-10-27 1983-05-04 Nippon Kokan Kk <Nkk> Preheating method of strip in continuous heat treatment equipment
JPS5920428A (en) * 1982-07-26 1984-02-02 Nippon Kokan Kk <Nkk> Cooling method of steel strip in continuous annealing furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741330A (en) * 1980-08-26 1982-03-08 Nippon Steel Corp Preheater for steel strip
JPS57198219A (en) * 1981-05-29 1982-12-04 Nippon Steel Corp Preheating method for continuous steel strip by waste gas of radiant tube zone
JPS5873727A (en) * 1981-10-27 1983-05-04 Nippon Kokan Kk <Nkk> Preheating method of strip in continuous heat treatment equipment
JPS5920428A (en) * 1982-07-26 1984-02-02 Nippon Kokan Kk <Nkk> Cooling method of steel strip in continuous annealing furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168821A (en) * 1987-12-24 1989-07-04 Kawasaki Steel Corp Method for heating metal strip
KR100815978B1 (en) 2001-11-12 2008-03-24 주식회사 포스코 Device for pre-heating air of batch annealing furnace
KR101239587B1 (en) 2007-10-12 2013-03-05 쥬가이로 고교 가부시키가이샤 Continuous metal strip heat treating apparatus
TWI392743B (en) * 2007-10-12 2013-04-11 Chugai Ro Kogyo Kaisha Ltd Continuous metal strip heat treating apparatus

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees