JPS5681608A - Method and apparatus for regulating pressure of upper bell chamber in high pressure operation of blast furnace - Google Patents
Method and apparatus for regulating pressure of upper bell chamber in high pressure operation of blast furnaceInfo
- Publication number
- JPS5681608A JPS5681608A JP15913279A JP15913279A JPS5681608A JP S5681608 A JPS5681608 A JP S5681608A JP 15913279 A JP15913279 A JP 15913279A JP 15913279 A JP15913279 A JP 15913279A JP S5681608 A JPS5681608 A JP S5681608A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- upper bell
- pressure
- opened
- cylinders
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/007—Controlling or regulating of the top pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
PURPOSE:To eliminate the atmospheric diffusion of high-pressure gas and prevent noise and the losses of gas energy by reducing or expanding the inside volume of a preliminary chamber communicating with the upper bell chamber of a blast furnace and regulating the pressure in the upper bell chamber. CONSTITUTION:A preliminary chamber 4 communicated with an upper bell chamber is provided and a piston seat 5 is moved by elongating or contracting cylinders 6, 6' to elongate or contract a shielding membrance 7 by the movement thereof so that the inside volume of the preliminary chamber 4 is made arbitrarily changeable. For example, if the cylinders 6, 6' are contracted most, the upper bell chamber 1 assumes atmospheric pressure and therefore, sealing valves 2, 2' are opened and furnace top hopper gates 3, 3' are opened to discharge raw materials into the chamber 1 . Next, when the valves 2, 2' are closed and the cylinders 6, 6' are extended, the pressure in the chamber 1 assumes the same pressure as that in the lower bell chamber 19; therefore, an upper bell 20 is opened to discharge the raw materials into the chamber 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15913279A JPS5681608A (en) | 1979-12-10 | 1979-12-10 | Method and apparatus for regulating pressure of upper bell chamber in high pressure operation of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15913279A JPS5681608A (en) | 1979-12-10 | 1979-12-10 | Method and apparatus for regulating pressure of upper bell chamber in high pressure operation of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5681608A true JPS5681608A (en) | 1981-07-03 |
Family
ID=15686940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15913279A Pending JPS5681608A (en) | 1979-12-10 | 1979-12-10 | Method and apparatus for regulating pressure of upper bell chamber in high pressure operation of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5681608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0135667A2 (en) * | 1983-09-28 | 1985-04-03 | MAN Gutehoffnungshütte Aktiengesellschaft | Method and apparatus for reducing the pressure in blast furnace charge hoppers to nearly atmospheric pressure by simultaneous top gas recovery |
| CN102359631A (en) * | 2011-11-11 | 2012-02-22 | 石家庄石特阀门有限责任公司 | Pressure regulating valve group of pressure regulating cone valve |
-
1979
- 1979-12-10 JP JP15913279A patent/JPS5681608A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0135667A2 (en) * | 1983-09-28 | 1985-04-03 | MAN Gutehoffnungshütte Aktiengesellschaft | Method and apparatus for reducing the pressure in blast furnace charge hoppers to nearly atmospheric pressure by simultaneous top gas recovery |
| CN102359631A (en) * | 2011-11-11 | 2012-02-22 | 石家庄石特阀门有限责任公司 | Pressure regulating valve group of pressure regulating cone valve |
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