JPS5588820A - Dust-collecting method for dealing with blow-bye of blast furnace - Google Patents

Dust-collecting method for dealing with blow-bye of blast furnace

Info

Publication number
JPS5588820A
JPS5588820A JP16192978A JP16192978A JPS5588820A JP S5588820 A JPS5588820 A JP S5588820A JP 16192978 A JP16192978 A JP 16192978A JP 16192978 A JP16192978 A JP 16192978A JP S5588820 A JPS5588820 A JP S5588820A
Authority
JP
Japan
Prior art keywords
dust
gas
exhaust gas
blast furnace
dust collector
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
JP16192978A
Other languages
Japanese (ja)
Inventor
Takashi Mashita
Kenzaburo Kodama
Katsumi Suehiro
Yasuyuki Minamino
Jiro Tateno
Yozo Sasaki
Hiroshi Horyoda
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.)
JFE Steel Corp
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki 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 Kawasaki Heavy Industries Ltd, Kawasaki Steel Corp filed Critical Kawasaki Heavy Industries Ltd
Priority to JP16192978A priority Critical patent/JPS5588820A/en
Publication of JPS5588820A publication Critical patent/JPS5588820A/en
Pending legal-status Critical Current

Links

Landscapes

  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

PURPOSE: To prevent a dust collector damage casued by unexpected high temp. by blow-bye of a blast furnace, by, in the blast furnace provided with the dry dust collector, monitoring the furnace top gas temp. and the collector outlet gas temp., and by spraying water at demand in order to cool the exhaust gas.
CONSTITUTION: Blast furnace top exhaust gas passes through a duct 2 and a diffuser 5 into a dry dust collector, where the coarse grain dust included in the exhuast gas is settled by inertia into a dust hopper. Then the gas undergoes secondary dust- collection while passing through the lower part of a dust collecting tank 8 using granular or lump material such as sand or gravel as the filter medium. Then the exhaust gas further undergoes tertiary dust collection while passing through the intermediate part and the upper part of the dust collector 8 and is discharged through an outlet 13. When blow-bye happens in the blast furnace 1 and the gas temp. rises unusually, the gas temps. are detected by a thermometer 16 for the furnace top exhaust gas and by a thermometer 17 for the exhaust gas of the dust collector 3 so as to operate a water-spray control means 18 in order to cool the exhaust gas by spraying water through a nozzle 20, hereby the dust collector 3 is prevented from being damaged because of high temp.
COPYRIGHT: (C)1980,JPO&Japio
JP16192978A 1978-12-27 1978-12-27 Dust-collecting method for dealing with blow-bye of blast furnace Pending JPS5588820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16192978A JPS5588820A (en) 1978-12-27 1978-12-27 Dust-collecting method for dealing with blow-bye of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16192978A JPS5588820A (en) 1978-12-27 1978-12-27 Dust-collecting method for dealing with blow-bye of blast furnace

Publications (1)

Publication Number Publication Date
JPS5588820A true JPS5588820A (en) 1980-07-04

Family

ID=15744714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16192978A Pending JPS5588820A (en) 1978-12-27 1978-12-27 Dust-collecting method for dealing with blow-bye of blast furnace

Country Status (1)

Country Link
JP (1) JPS5588820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611590A1 (en) * 1993-02-18 1994-08-24 Asahi Glass Company Ltd. Method for operating a filtration apparatus for flue gas

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897169A (en) * 1972-03-24 1973-12-11
JPS4913767A (en) * 1972-05-19 1974-02-06
JPS503350U (en) * 1973-05-07 1975-01-14

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897169A (en) * 1972-03-24 1973-12-11
JPS4913767A (en) * 1972-05-19 1974-02-06
JPS503350U (en) * 1973-05-07 1975-01-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611590A1 (en) * 1993-02-18 1994-08-24 Asahi Glass Company Ltd. Method for operating a filtration apparatus for flue gas

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