JPS64212A - Method for controlling opening degree of raw material control gate - Google Patents
Method for controlling opening degree of raw material control gateInfo
- 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
Links
Landscapes
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15591187A JPS64212A (en) | 1987-06-23 | 1987-06-23 | Method for controlling opening degree of raw material control gate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15591187A JPS64212A (en) | 1987-06-23 | 1987-06-23 | Method for controlling opening degree of raw material control gate |
Publications (3)
Publication Number | Publication Date |
---|---|
JPH01212A JPH01212A (en) | 1989-01-05 |
JPS64212A true JPS64212A (en) | 1989-01-05 |
JPH0438804B2 JPH0438804B2 (en) | 1992-06-25 |
Family
ID=15616205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15591187A Granted JPS64212A (en) | 1987-06-23 | 1987-06-23 | Method for controlling opening degree of raw material control gate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS64212A (en) |
-
1987
- 1987-06-23 JP JP15591187A patent/JPS64212A/en active Granted
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 |