JPS6479310A - Method for determining timing for opening blast furnace tap hole - Google Patents

Method for determining timing for opening blast furnace tap hole

Info

Publication number
JPS6479310A
JPS6479310A JP23475487A JP23475487A JPS6479310A JP S6479310 A JPS6479310 A JP S6479310A JP 23475487 A JP23475487 A JP 23475487A JP 23475487 A JP23475487 A JP 23475487A JP S6479310 A JPS6479310 A JP S6479310A
Authority
JP
Japan
Prior art keywords
luminance
tapping
blast furnace
tap hole
deltats
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.)
Granted
Application number
JP23475487A
Other languages
Japanese (ja)
Other versions
JPH0619092B2 (en
Inventor
Kanji Takeda
Makoto Nomura
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
Original Assignee
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 Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP23475487A priority Critical patent/JPH0619092B2/en
Publication of JPS6479310A publication Critical patent/JPS6479310A/en
Publication of JPH0619092B2 publication Critical patent/JPH0619092B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Blast Furnaces (AREA)

Abstract

PURPOSE:To exactly determine the timing for starting tapping for decreasing the number of tapping by opening the tap hole when the luminance of the raceway part behind tuyeres of a blast furnace measured through the tuyeres attains or exceeds a reference luminance increment. CONSTITUTION:The luminance in the raceway part behind the tuyeres is measured through >=1 piece of the tuyere in the blast furnace operation. The tap hole is opened when the measured luminance increases after the stop of the previous tapping and attains or exceeds the reference luminance increment DELTATS. The above-mentioned reference luminance increment DELTATS is preferably set in the range of the inequality: DELTATS<=DELTATmax-d(DELTAT)/dt2.DELTAt2 (where DELTATmax: the luminance of the permissible upper limit, d(DELTAT)/dT2: the predicted value of the luminance increase rate after opening of the tap hole, DELTAt2: the predicted value of the time from the start of tapping to the arriving of the luminance at a peak value). The timing for starting the taping is thereby exactly determined and the number of tapping is decreased without undesirably affecting the blast furnace operation.
JP23475487A 1987-09-21 1987-09-21 Blast furnace tap opening timing determination method Expired - Fee Related JPH0619092B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23475487A JPH0619092B2 (en) 1987-09-21 1987-09-21 Blast furnace tap opening timing determination method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23475487A JPH0619092B2 (en) 1987-09-21 1987-09-21 Blast furnace tap opening timing determination method

Publications (2)

Publication Number Publication Date
JPS6479310A true JPS6479310A (en) 1989-03-24
JPH0619092B2 JPH0619092B2 (en) 1994-03-16

Family

ID=16975828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23475487A Expired - Fee Related JPH0619092B2 (en) 1987-09-21 1987-09-21 Blast furnace tap opening timing determination method

Country Status (1)

Country Link
JP (1) JPH0619092B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105308191A (en) * 2013-06-19 2016-02-03 杰富意钢铁株式会社 Method for detecting abnormality in blast furnace, and method for operating blast furnace
CN115044725A (en) * 2022-07-14 2022-09-13 广东韶钢松山股份有限公司 Blast furnace taphole control method, device, equipment and storage medium
JP2024070429A (en) * 2022-11-11 2024-05-23 日本製鉄株式会社 How to start up a blast furnace after shutting down

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105308191A (en) * 2013-06-19 2016-02-03 杰富意钢铁株式会社 Method for detecting abnormality in blast furnace, and method for operating blast furnace
US10151006B2 (en) 2013-06-19 2018-12-11 Jfe Steel Corporation Method of detecting abnormality at blast furnace and method of operating blast furnace
CN115044725A (en) * 2022-07-14 2022-09-13 广东韶钢松山股份有限公司 Blast furnace taphole control method, device, equipment and storage medium
JP2024070429A (en) * 2022-11-11 2024-05-23 日本製鉄株式会社 How to start up a blast furnace after shutting down

Also Published As

Publication number Publication date
JPH0619092B2 (en) 1994-03-16

Similar Documents

Publication Publication Date Title
MY106444A (en) Method for controlling opening/closing of door in automatic door system.
EP0371963A3 (en) Apparatus for controlling musical sounds in accordance with an input waveform signal
JPS6479310A (en) Method for determining timing for opening blast furnace tap hole
CA2011702A1 (en) Method for smelting reduction of ni ore
TW345596B (en) Method of producing steel in an electric furnace by charging with molten pig iron
GB1507918A (en) Cupola furnace and a process for melting iron in such a furnace
ZA937221B (en) Method for the injection of a plugging mass in a tapping hole of a metallurgical reactor such as a blast furnace
JPS52134805A (en) Slag discharge prevention during converter tapping
JPS56166313A (en) Method for preventing explosion during reduction of stock line and blowing down of blast furnace
JPS5732339A (en) Operating method for copper smelting converter
JPS5772811A (en) Weight control method for molded article in powder compression molding machine
JPS53138907A (en) Separating method for molten slag and molten steel at tap hole of converter
JPS6436717A (en) Method for preventing flowing-out of slag in converter
JPS6468412A (en) Method for plugging and opening tuyere in blast furnace
JPS54141309A (en) Reducing blow out method for blast furnace
SU1528793A1 (en) Method of fluching blast furnace hearth
JPS5255036A (en) Automatic control method of temperature of molten steel in smelting pr ocess in arc furnace for steel manufacture
JPS5395335A (en) In-electric furnace circumstance detecting method and device
JPS56105414A (en) Steel taphole of converter
JPS5782410A (en) Production of low silicon pig iron
JPS5779109A (en) Slag cutting method in converter during tapping
JPS6483628A (en) Operation for flash smelting furnace
JPS5431006A (en) Opening method for tap hole of blast furnace
JPH01152207A (en) Method for controlling iron tapping in blast furnace
JPS5773107A (en) Method foe improving dephosphorization efficiency of molten iron

Legal Events

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