CN201317780Y - Automatic closing type ball valve - Google Patents
Automatic closing type ball valve Download PDFInfo
- Publication number
- CN201317780Y CN201317780Y CNU2008201594882U CN200820159488U CN201317780Y CN 201317780 Y CN201317780 Y CN 201317780Y CN U2008201594882 U CNU2008201594882 U CN U2008201594882U CN 200820159488 U CN200820159488 U CN 200820159488U CN 201317780 Y CN201317780 Y CN 201317780Y
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- valve body
- steel ball
- valve
- ball
- ball valve
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- Expired - Fee Related
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Abstract
The utility model discloses an automatic closing type ball valve, which comprises a valve body (1), a ball valve inlet clamping head seat (2), a steel ball (3) and a choke plug (4); the valve body (1) is a three-way elbow type valve body; the ball valve inlet clamping head seat (2) is arranged at the front end of the valve body (1) through a bolt (21); the steel ball (3) is arranged in the valve body (1); the choke plug (4) is arranged at the upper end of the elbow part of the valve body (1). The automatic closing type ball valve has the following advantages: a, the steel ball regular moves downwards to plug the opening of the valve under the deadweight and the pressure of a blast furnace to prevent clinkers from being accumulated on the surface of the steel ball and solves the problem of being incapable of pushing the steel ball due to the low pressure of hot air; b, the ball valve inlet clamping head seat and the valve body are connected by bolt, and can be independently dismounted, checked, repaired and replaced, thus improving the service life of the ball valve and reducing the repairing cost; c, when the steel ball is worn, the steel ball can be independently exchanged.
Description
Technical field
The utility model relates to the blowing device of coal dust in a kind of pulverized coal injection powder craft, the automatic close-type ball valve that particularly a kind of pulverized coal injection is used.
Background technology
In the pulverized coal injection powder craft, need pulverized coal gun is inserted and secured on the blast-furnace tuyere belly pipe, when spray gun when ball valve quick-mounting clamp headstock endoporus inserts blast-furnace tuyere, the steel ball of ball valve inside is backed down by gun shot, connect the dop seat soon and carry out and connect fast by connect soon dop and the ball valve that are fixed on the gun shot and tie lock packing, when spray gun was pulled out blast-furnace tuyere, the steel ball of ball valve inside cut out under the effect of high furnace pressure automatically, and control furnace high-temperature gas does not leak.The structure of the general bevel-type ball valve that adopts as shown in Figure 1 at present, when spray gun (1) inserts pellet shot from a slingshot valve body (2), inner steel ball (3) is in pellet shot from a slingshot valve body (2) bottom, when spray gun (1) is transferred to pellet shot from a slingshot valve body (2), steel ball (3) is blocked valve port under blast furnace pressure, prevent that hot gas flow leaks in the blast furnace.Its deficiency be: when 1, plugging in spray gun, steel ball can only lean on the blast-furnace tuyere hot-blast pressure to promote to block valve port, because steel ball is heavier, when the hot-blast pressure of blast furnace was on the low side, hot-blast pressure also can't promote steel ball automatically; 2, the easy dust stratification slag in the awl end is raised the steel ball position, and grown duration of service, can influence the insertion of spray gun; 3, with the dop seat conical surface of steel ball contact seal when making welding, easily produce distortion, influence sealing effectiveness; 4, when steel ball is worn, can not change steel ball separately, need to change whole ball valve, reduce work-ing life, increase maintenance cost.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned weak point, and provides a kind of easy to use, the automatic close-type ball valve that good sealing effect, the pulverized coal injection of dissembling inspection separately, maintenance, replacing are used.
The purpose of this utility model is achieved in that a kind of automatic close-type ball valve, it comprises valve body, ball valve import dop seat, steel ball and plug, valve body is a three-way elbow formula valve body, ball valve import dop seat is installed in the front end of valve body by bolt, steel ball is positioned at valve body, and plug is installed in the upper end of the elbow portion of valve body.
The utility model has the following advantages owing to adopt above texture improvement:
A) steel ball is blocked valve port along regular the moving down of elbow under deadweight and blast furnace pressure, prevents steel ball surface dust stratification slag dirt, has solved because the low problem that pushes away motionless steel ball of hot-blast pressure.
B) adopt bolt to be connected between dop seat and the valve body, dissembling inspection separately, maintenance, replacing in the work-ing life of having improved ball valve, have reduced maintenance cost.
C) when steel ball is worn, but individual inspiration is changed.
Description of drawings
Fig. 1 is the structural representation of existing bevel-type ball valve.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Now in conjunction with the accompanying drawings and embodiments the utility model is made detailed description.
As shown in Figure 2, a kind of automatic close-type ball valve, it comprises valve body (1), ball valve import dop seat (2), steel ball (3), plug (4), valve body (1) is a three-way elbow formula valve body, ball valve import dop seat (2) is installed in the front end of valve body (1) by bolt (21), steel ball (3) selects for use carbon steel or stainless steel to be made, and it is positioned at valve body (1), and plug is installed in the upper end of the elbow portion of valve body (1).
During use, when spray gun (5) inserted the utility model, steel ball (3) was moved to top by gun shot jack-up neatly along elbow; When spray gun (5) was transferred in the utility model, steel ball (3) was moved down into ball valve import dop seat (2) sealing cone in its deadweight and blast-furnace tuyere hot-blast pressure lower edge elbow, blocks valve port, prevented that hot gas flow leaks in the blast furnace; When steel ball (3) damage needed to change, the plug (4) of can outwarding winding was checked and is changed; When the sealing cone of ball valve import dop seat (2) need be checked, cleans, when keeping in repair, can turn on bolt (21) and can carry out.
Claims (1)
1, a kind of automatic close-type ball valve, it comprises valve body (1), ball valve import dop seat (2), steel ball (3), steel ball (3) is positioned at valve body (1), it is characterized in that also comprising plug (4), valve body (1) is a three-way elbow formula valve body, ball valve import dop seat (2) is installed in the front end of valve body (1) by bolt (21), and plug (4) is installed in the upper end of the elbow portion of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201594882U CN201317780Y (en) | 2008-11-28 | 2008-11-28 | Automatic closing type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201594882U CN201317780Y (en) | 2008-11-28 | 2008-11-28 | Automatic closing type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201317780Y true CN201317780Y (en) | 2009-09-30 |
Family
ID=41196549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201594882U Expired - Fee Related CN201317780Y (en) | 2008-11-28 | 2008-11-28 | Automatic closing type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201317780Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724779A (en) * | 2019-12-04 | 2020-01-24 | 秦皇岛天沐冶金机械设备制造有限公司 | Blast furnace ironmaking coal powder spray gun check valve and check method |
| CN113667782A (en) * | 2021-07-15 | 2021-11-19 | 河钢股份有限公司 | Blast furnace air supply device and method for adjusting blast kinetic energy on line |
-
2008
- 2008-11-28 CN CNU2008201594882U patent/CN201317780Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724779A (en) * | 2019-12-04 | 2020-01-24 | 秦皇岛天沐冶金机械设备制造有限公司 | Blast furnace ironmaking coal powder spray gun check valve and check method |
| CN113667782A (en) * | 2021-07-15 | 2021-11-19 | 河钢股份有限公司 | Blast furnace air supply device and method for adjusting blast kinetic energy on line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20111128 |