JPS64212A - Method for controlling opening degree of raw material control gate - Google Patents

Method for controlling opening degree of raw material control gate

Info

Publication number
JPS64212A
JPS64212A JP15591187A JP15591187A JPS64212A JP S64212 A JPS64212 A JP S64212A JP 15591187 A JP15591187 A JP 15591187A JP 15591187 A JP15591187 A JP 15591187A JP S64212 A JPS64212 A JP S64212A
Authority
JP
Japan
Prior art keywords
raw material
opening degree
gate opening
discharging velocity
control gate
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
JP15591187A
Other languages
Japanese (ja)
Other versions
JPH0438804B2 (en
JPH01212A (en
Inventor
Makoto Nishinomiya
Haruyasu Yamada
Shuichi Yoshii
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co 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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP62-155911A priority Critical patent/JPH01212A/en
Priority claimed from JP62-155911A external-priority patent/JPH01212A/en
Publication of JPS64212A publication Critical patent/JPS64212A/en
Publication of JPH01212A publication Critical patent/JPH01212A/en
Publication of JPH0438804B2 publication Critical patent/JPH0438804B2/ja
Granted legal-status Critical Current

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  • Blast Furnaces (AREA)

Abstract

PURPOSE: To obtain stable operation of a blast furnace by executing control of raw material discharging velocity at the next time based on deviation between the raw material discharging velocity and a raw material discharging velocity in a raw material control gate opening degree on reference discharging characteristic curve to accurately set the gate opening degree.
CONSTITUTION: Lump raw material is charged and distributed into the blast furnace from a top furnace hopper through raw material control gate and a distributing chute. In the method for controlling opening degree of the raw material control gate, the reference discharging characteristic curve showing relation between the gate opening degree and the raw material discharging velocity at every raw material description is beforehand set. The deviation value is found by comparing the actual raw material discharging velocity at the time of charging the raw material at the last time and the raw material discharging velocity on the curve corresponding to the actual gate opening degree at that time. This deviation value is subtracted from raw material expected discharging velocity to find the raw material discharging velocity at the next time. The gate opening degree corresponding to this corrected raw material discharging velocity is found from the curve. This gate opening degree is used to the raw material control gate opening degree at the next time.
COPYRIGHT: (C)1989,JPO&Japio
JP62-155911A 1987-06-23 How to adjust the opening of the raw material control gate Granted JPH01212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-155911A JPH01212A (en) 1987-06-23 How to adjust the opening of the raw material control gate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-155911A JPH01212A (en) 1987-06-23 How to adjust the opening of the raw material control gate

Publications (3)

Publication Number Publication Date
JPS64212A true JPS64212A (en) 1989-01-05
JPH01212A JPH01212A (en) 1989-01-05
JPH0438804B2 JPH0438804B2 (en) 1992-06-25

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Also Published As

Publication number Publication date
JPH0438804B2 (en) 1992-06-25

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Legal Events

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