JPS5629616A - Controlling system of water level in drum - Google Patents
Controlling system of water level in drumInfo
- Publication number
- JPS5629616A JPS5629616A JP10311179A JP10311179A JPS5629616A JP S5629616 A JPS5629616 A JP S5629616A JP 10311179 A JP10311179 A JP 10311179A JP 10311179 A JP10311179 A JP 10311179A JP S5629616 A JPS5629616 A JP S5629616A
- Authority
- JP
- Japan
- Prior art keywords
- water level
- regulating valve
- valve
- drum
- erosion
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
PURPOSE:To prevent the erosion of the water supply valve of the drum by a method in which when the opening of a water supply valve is lowered to an opening degree enough to cause the erosion, a regulating valve is fully closed, and also the regulating valve is opened by increasing deviation from a set water level. CONSTITUTION:An arithmetic unit 12 watches the opening degree of the water supply valve and sends a signal to a relay circuit to open the always-closed contact (a) when a low-opening degree enough to nullify a means of preventing erosion in the regulating valve 14 is reached, interrups operation output from a regulator 13 to the regulating valve 14, and fully close the regulating valve 14 to stop the supply of water to the drum 4. When the deviation between the water level of the drum 4 and a set water level is increased sufficiently, the arithmetic unit 12 sends a signal to the circuit 15, and then the always-opened contact (b) is closed, an operational signal is sent from the regulator 13 to the regulating valve 14, and a water level regulating operation is restarted. At this time, since, at the regulator 13, the deviation of the present water level from the set water level is sufficiently large, the regulating valve 14 is largely opened, thus preventing a means of preventing erosion of the valve from nullification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10311179A JPS5629616A (en) | 1979-08-15 | 1979-08-15 | Controlling system of water level in drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10311179A JPS5629616A (en) | 1979-08-15 | 1979-08-15 | Controlling system of water level in drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5629616A true JPS5629616A (en) | 1981-03-25 |
| JPS622006B2 JPS622006B2 (en) | 1987-01-17 |
Family
ID=14345490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10311179A Granted JPS5629616A (en) | 1979-08-15 | 1979-08-15 | Controlling system of water level in drum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5629616A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8703621U1 (en) * | 1987-03-11 | 1987-04-23 | Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern, De | |
| JPH01111000U (en) * | 1988-01-20 | 1989-07-26 |
-
1979
- 1979-08-15 JP JP10311179A patent/JPS5629616A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS622006B2 (en) | 1987-01-17 |
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