CN2844588Y - Non-balance weight diffusing valve on furnace roof - Google Patents
Non-balance weight diffusing valve on furnace roof Download PDFInfo
- Publication number
- CN2844588Y CN2844588Y CN 200520032435 CN200520032435U CN2844588Y CN 2844588 Y CN2844588 Y CN 2844588Y CN 200520032435 CN200520032435 CN 200520032435 CN 200520032435 U CN200520032435 U CN 200520032435U CN 2844588 Y CN2844588 Y CN 2844588Y
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- big
- valve
- rotating arm
- connecting plate
- small
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- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a non-balance weight diffusing valve on a furnace roof, which is used in ironmaking with a blastfurnace. The non-balance weight diffusing valve on a furnace roof comprises a valve body, a valve cover and a driving device, wherein the valve body is composed of a valve seat, a middle shell and a lower shell. A starting and stopping device of the valve cover is composed of a big rotating arm, a small rotating arm, a supporting seat of the big rotating arm, a supporting seat of the small rotating arm, a connecting plate between the supporting seats, etc., wherein the valve cover is connected with the big rotating arm via a hinge, the big rotating arm is connected with the big supporting seat of the big rotating arm via a hinge, the small rotating arm is connected with the small supporting seat of the small rotating arm via a hinge and both of the big and the small rotating arms are connected with the connecting plate via a hinge. When two pin shaft holes of the connecting plate, which are connected with the big and the small rotating arms, are in vertical positions, the starting and stopping device is locked by the starting and stopping device self and the valve cover is in the closing state. When the small rotating arm is pulled to move by the driving device, the two pin shaft holes of the connecting plate, which are connected with the big and the small rotating arms, deviate from the dead center positions; the connecting plate is driven by the small rotating arm to pull the big rotating arm to swing; therefore, the valve cover is opened. The non-balance weight diffusing valve realize the starting and the stopping of the valve cover by using the position relations of the big and the small rotating arms and the connecting plate. The utility model has the advantages of simple structure, light weight, small starting power, safety, economy and long service life.
Description
Affiliated technical field
The utility model relates to the no counterweight bleeding valve that adopts in a kind of blast furnace ironmaking.
Background technique
In the blast furnace ironmaking process, chemical reaction at high temperature takes place in iron ore and coke, produces CO (carbon monoxide converter) gas, moved upward by lower furnace, because the continual drum in bottom send hot blast, some furnace charge particulates are under the blowing of hot blast simultaneously, move upward with coal gas, form raw coke oven gas.Raw coke oven gas is sent to the dust pelletizing system purified treatment through the gas pipe line on blast furnace top, and the purified gas after the processing is as combustion gas, as heat hot wind furnace, generating or civilian etc.For keeping the stable of smelting process, the gas pressure in the blast furnace need be stabilized in certain scope.On the Top of BF gas pipe line, bleeding valve must be installed like this, when furnace pressure is too high, opens and diffuse valve, coal gas is bled off a part, in addition, when blast furnace is out of order maintenance, opens and diffuse valve, coal gas diffusion is fallen, be convenient to safety inspection.
For many years, bleeding valve adopts the lever counterweight type to diffuse valve always, and closing by counterweight pressure of valve finished.Structure is huge, the valve heaviness, and it is big to turn on the power, and heavy especially like this valve is installed on tens meters even the high furnace roof of rice up to a hundred, has potential safety hazard.Develop no counterweight and diffuse very necessity of valve.
Summary of the invention
To diffuse valve arrangement huge in order to solve above-mentioned lever counterweight type, the valve heaviness, and technical problem such as it is big to turn on the power now provides a kind of no counterweight bleeding valve, and can eliminate potential potential safety hazard.
The technical solution adopted in the utility model is:
No counterweight bleeding valve comprises valve body, valve gap and drive unit.Valve body is made up of valve seat, mesochite and lower casing.The start-stop device of valve gap is made up of large and small pivoted arm and bearing and the connecting plate between the two etc., valve gap is connected with big pivoted arm hinge, big pivoted arm and big bearing hinge thereof connect, and little pivoted arm and little bearing hinge thereof connect, and big pivoted arm all is connected with the connecting plate hinge with little pivoted arm.Connect drive unit by little pivoted arm.When two pin shaft holes that are connected between connecting plate and the large and small pivoted arm are in vertical position, i.e. the dead center position of start-stop device, the start-stop device self-locking, valve gap is in closed condition.When drive unit spurred little pivoted arm, two pin shaft holes that are connected between connecting plate and the large and small pivoted arm departed from the dead center position, and little pivoted arm is around its spot wobble and drive connecting plate, thereby spurs big pivoted arm around its spot wobble, and valve gap is opened.
The drive unit that is connected by little pivoted arm can adopt Electric actuator, or Hydraulic actuator, or manually.
No counterweight bleeding valve utilizes the position relation between big or small pivoted arm and the connecting plate, realizes the keying of valve gap, and simple in structure, in light weight, it is little, safe, economical to start power, long service life.
Description of drawings
Accompanying drawing is a plan view of the present utility model
Embodiment
Introduce embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in the figure: this no counterweight bleeding valve is a normally close valve.Comprise valve body, valve gap and drive unit.Valve body is made up of valve seat (1), mesochite (2) and lower casing (3).The start-stop device of valve gap (4) is made up of the connecting plate (7) between big pivoted arm (5) and big bearing (6), little pivoted arm (8) and little its bearing (9) and the large and small pivoted arm etc., valve gap (4) is connected with big pivoted arm (5) hinge, big pivoted arm (5) and big bearing (6) thereof connect at its fulcrum hinge, little pivoted arm (8) and little bearing (9) thereof connect at its fulcrum hinge, big pivoted arm (5) all is connected with connecting plate (7) hinge with little pivoted arm (8), and big bearing (6) and little bearing (9) place on the body (10).When two pin shaft holes that are connected between connecting plate (7) and the large and small pivoted arm (5) (8) were in vertical position, start-stop device was in self-locking state, and valve gap (4) is closed.When fluid pressure drive device (11) spurs little pivoted arm (8), two pin shaft holes that are connected between connecting plate (7) and the large and small pivoted arm (5) (8) depart from the dead center position, little pivoted arm (8) is around its spot wobble and drive connecting plate (7), thereby spur big pivoted arm (5) around its spot wobble, valve gap (4) is opened.
Claims (2)
1. no counterweight bleeding valve, comprise valve body, valve gap and drive unit, valve body is made up of valve seat, mesochite and lower casing, it is characterized in that, the start-stop device of valve gap is made up of large and small pivoted arm and bearing thereof and the connecting plate between the two, and valve gap is connected with big pivoted arm hinge, big pivoted arm and bearing hinge connection thereof, little pivoted arm and bearing hinge thereof connect, and big pivoted arm all is connected with the connecting plate hinge with little pivoted arm.
2. no counterweight bleeding valve according to claim 1 is characterized in that, connects drive unit by little pivoted arm, and drive unit adopts Electric actuator, or Hydraulic actuator, or manually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032435 CN2844588Y (en) | 2005-10-28 | 2005-10-28 | Non-balance weight diffusing valve on furnace roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032435 CN2844588Y (en) | 2005-10-28 | 2005-10-28 | Non-balance weight diffusing valve on furnace roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2844588Y true CN2844588Y (en) | 2006-12-06 |
Family
ID=37486538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520032435 Expired - Fee Related CN2844588Y (en) | 2005-10-28 | 2005-10-28 | Non-balance weight diffusing valve on furnace roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2844588Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148259A (en) * | 2013-03-07 | 2013-06-12 | 世林（漯河）冶金设备有限公司 | Furnace top bleeding valve with safety protection function |
| CN103174841A (en) * | 2011-12-21 | 2013-06-26 | 麦丰密封科技股份有限公司 | Seal assembly |
| CN110296268A (en) * | 2019-06-28 | 2019-10-01 | 中国舰船研究设计中心 | A kind of emergency flap valve |
-
2005
- 2005-10-28 CN CN 200520032435 patent/CN2844588Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174841A (en) * | 2011-12-21 | 2013-06-26 | 麦丰密封科技股份有限公司 | Seal assembly |
| CN103148259A (en) * | 2013-03-07 | 2013-06-12 | 世林（漯河）冶金设备有限公司 | Furnace top bleeding valve with safety protection function |
| CN110296268A (en) * | 2019-06-28 | 2019-10-01 | 中国舰船研究设计中心 | A kind of emergency flap valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |