CN201348060Y - Pulverized coal injection ball valve - Google Patents
Pulverized coal injection ball valve Download PDFInfo
- Publication number
- CN201348060Y CN201348060Y CNU2008201575468U CN200820157546U CN201348060Y CN 201348060 Y CN201348060 Y CN 201348060Y CN U2008201575468 U CNU2008201575468 U CN U2008201575468U CN 200820157546 U CN200820157546 U CN 200820157546U CN 201348060 Y CN201348060 Y CN 201348060Y
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- valve
- pulverized coal
- coal injection
- valve body
- injection ball
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Abstract
A pulverized coal injection ball valve, which is mounted in the pipeline of a pulverized coal injection system, comprises a valve body, a valve rod, a valve cap, a ball, a support, a bottom cover shaft and a pneumatic actuator, and is characterized in that the valve body is formed by a plurality of cylinders intersected with the ball. The valve rod which is a cylinder is arranged in the valve body and inserted in the ball. The ball which is arranged in the valve body is supported by the valve rod and the bottom cover shaft and can be rotated by 90 degrees, and the ball and a valve seat are formed into a sealing pair. The valve cover is formed by a plurality of cylinders and a hemisphere, and is connected with the valve body through bolts. The support which is a square component supports the pneumatic actuator. The bottom cover shaft which is a polycylinder is connected with the valve body through bolts. The pneumatic actuator which is connected with the support can drive the valve rod in order to open and close the valve. The pulverized coal injection ball valve can withstand the erosion of pulverized coal medium, and the service life of the valve is prolonged.
Description
Technical field
The utility model relates to a kind of ball valve, specifically, is the coal powder injection ball valve that uses in a kind of blast furnace process coal injection system pipeline.
Background technique
Modern blast furnace is smelted needs to use coke, its effect in blast furnace to provide the heat that smelting process needs; The reducing agent that reducing iron ore needs; And the skeleton of keeping blast furnace stock column (particularly cohesive zone and following position thereof) gas permeability.Pulverized coal injection in blast furnace is from blast-furnace tuyere directly winding-up is levigate in stove anchracite duff or bituminous coal powder or the two mixed coal powder, work to provide heat and reducing agent to substitute coke, thereby the reduction coke ratio reduces pig iron cost, and it is the great technological revolution that modern blast furnace is smelted.
Pulverized coal injection is that the valve that quantity delivered and frequency of delivery then need be installed on pipeline is controlled with pressurized gas pipeline pulverized coal conveying in blast furnace.Technique initialization control program according to pulverized coal injection in blast furnace comes the actuator of control valve to drive the valve running.
The medium that passes through in the bf coal injection system pipeline is the coal dust that mixes pressurized gas, and its flow velocity is very fast.Because continuous pulverized coal conveying in stove is so the valve opening and closing that is used to control is more frequent.
Known coal powder injection ball valve uses in this coal powder injection medium and following phenomenon can occur: 1, used coal powder injection ball valve all is a bivalve seat sealing configuration, respectively at the inlet/outlet end.During coal powder injection is crossed kind, the valve seat of outlet end face MEDIA FLOW to, not only directly be subjected to washing away of high speed coal dust, and hoard a large amount of coal dusts easily and influence the open-shut device normal operation.2, existing coal powder injection ball valve adopts fixedly ball, floating valve seat structure.The pretightening force of valve seat is real by valve seat group spring behind, and there is not complete isolating seal between spring and the medium, fine breeze is easy to enter in the spring eye, cumulative, will fill up behind at valve seat for a long time and block, make valve seat lose floating action force, thereby influence valve opening and closing and sealing.3, Sealing is subjected to the coal dust erosive wear that high speed flow is crossed, and serious meeting goes out very big breach in the spherome surface erosion, and valve has just lost effect.
Therefore known pulverized coal injection ball valve exists above-mentioned all inconvenience and problem.
Summary of the invention
The purpose of this utility model is to propose a kind of blast furnace probing rod valve of single valve seat metal hard-sealing structure.
For achieving the above object, technical solution of the present utility model is:
A kind of pulverized coal injection ball valve is installed in the bf coal injection system pipeline, comprises a valve body, a valve rod, and a valve gap, a spheroid, a support, a bottom axle and a pneumatic actuator is characterized in that:
Described valve body is to be intersected by a plurality of cylindrical bodys and spheroid to constitute.
Described valve rod is a cylindrical body, is arranged in the described valve body, is set on the spheroid.
Described spheroid is arranged in the described valve body, is supported by a described valve rod and a bottom axle, does 90 ° and rotatablely moves, and forms sealing pair with valve seat.
Described valve gap is made of a plurality of cylindrical bodys and hemisphere, and is connected with described valve body with bolt.
Described support is square member, to support a pneumatic actuator.
Described bottom axle is a polycylinder, is connected with described valve body with bolt.
Described pneumatic actuator is connected with described support, to drive described valve rod, realizes the keying of valve.
Pulverized coal injection ball valve of the present utility model can also be further achieved by the following technical measures.
Aforesaid pulverized coal injection ball valve wherein also comprises a valve base sealing, is arranged in the described valve seat ring recess, and and described spheroid formation sealing pair.
Aforesaid pulverized coal injection ball valve wherein more comprises a lumen gasket seal, is located between described valve body and the valve gap.
Aforesaid pulverized coal injection ball valve wherein more comprises sealing gasket, is arranged between described bottom axle and the described valve body.
Aforesaid pulverized coal injection ball valve wherein more comprises a valve washer, is arranged in the valve seat.
Aforesaid pulverized coal injection ball valve wherein, more comprises a thrust seal ring, is arranged between the culvert of described valve rod and described filler.
After adopting technique scheme, pulverized coal injection ball valve of the present utility model has the following advantages:
1. adopt global single valve stand structure, only the entrance point at valve is provided with a floating valve seat, valve seat back to MEDIA FLOW to, medium can't directly wash away sealing surface, thereby reduces the wearing and tearing to sealing surface, has prolonged working life.At outlet end valve seat is not set then, this place is designed to streamlined, and it is smooth and easy that medium is passed through.Can not form and pile up and the operation of jam open-shut device.
2. two body stack valve seat effectively with spring and media isolated, make spring keep permanently effective effect.
3. the spherome surface cure process has improved its surperficial wear-resisting property, can tolerate washing away of coal dust medium well, has improved valve working life.
4. valve rod is anti-flies design, and has the self-sealing function of pressure.
5. on the filler hold down gag butterfly spring has been installed, can have been compensated packing seal automatically, sealing is more reliable when making the valve operation.
Description of drawings
Fig. 1 is the structural representation of two body stack valve seat of the present utility model.
Fig. 2 is the anti-structural representation that flies to design of valve rod of the present utility model.
Fig. 3 is the structural representation of pulverized coal injection ball valve of the present utility model.
Wherein: 1 pneumatic actuator, 2 filler pressing, 3 butterfly springs, 4 socket head screws, 5 glands, 6 stuffing boxes, 7 socket head screws, 8 gasket seals, lining on 9,10 valve bodies, 11 pressure springs, 12 seal rings, 13 valve base sealings, 14 seal rings, 15 spheroids, 16 Lower shaft sleeves, 17 lower seal pads, 18 bottom axles, 19 bolts, 20 fillers, 21 thrust seal rings, 22 bolts, 23 lumen sealing gaskets, 24 valve gaps, 25 seat rings, 26 valve washers, 27 valve rods, 28 Upper shaft sleeves, 29 bolts, 30 connecting sleeves, 31 supports.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is illustrated further.
Now see also Fig. 1, Fig. 1 is the structural representation of two body stack valve seat of the present utility model.As shown in the figure, adopt global single valve stand structure, only the entrance point at valve is provided with a floating valve seat, valve seat back to MEDIA FLOW to, medium can't directly wash away sealing surface, thereby reduces the wearing and tearing to sealing surface, has prolonged working life.At outlet end valve seat is not set then, this place is designed to streamlined, and it is smooth and easy that medium is passed through.Can not form and pile up and the operation of jam open-shut device.Two body stack valve seat effectively with spring and media isolated, make spring keep permanently effective effect.The spherome surface cure process has improved its surperficial wear-resisting property, can tolerate washing away of coal dust medium well, has improved valve working life.
See also Fig. 2 again, Fig. 2 is the anti-structural representation that flies to design of valve rod of the present utility model.Valve rod is anti-to fly design, and has the self-sealing function of pressure.On the filler hold down gag butterfly spring has been installed, can have been compensated packing seal automatically, sealing is more reliable when making the valve operation.
See also Fig. 3 again, Fig. 3 is the structural representation of pulverized coal injection ball valve of the present utility model.As shown in the figure, described pneumatic actuator 1 is connected with described support 31, is used for driving described valve rod 27, realizes the keying of valve; Described filler pressing 2 is used to transmit the power of butterfly spring 3, compresses filler; Butterfly spring 3 is used to compress and compensate filler space; Socket head screw 4 is used for gland and compresses butterfly spring 3; Gland 5 is connected with stuffing box 6 with socket head screw 7, and compresses butterfly spring 3; Stuffing box 6 is connected with valve body 10 with socket head screw 4, is used to install parts such as filler, valve rod; Socket head screw 7 is used for being connected of stuffing box 6 and valve body 10; Gasket seal 8 is used for the sealing between stuffing box 6 and the valve body 10; Last lining 9 is installed between valve rod 27 and the valve body 10, as sliding bearing between the two; Valve body 10 is intersected by a plurality of cylindrical bodys and spheroid to be formed, and is connected with socket head screw or each parts of bolt and other, is to hold the main main body that makes up other inner piece; Pressure spring 11 is installed between valve body 10 and the valve washer 26, is used for the pretension of valve base sealing 13, and valve base sealing 13 and spheroid 15 are effectively fitted, and keeps sealing; Seal ring 12 is used for the sealing between seat ring 25 and the valve washer 26; Valve base sealing 13 is installed in seat ring 25 grooves and spheroid 15 forms sealing pair, is main Sealing; Seal ring 14 is installed on the seat ring 25, is used for the sealing between seat ring 25 and the valve body 10; Spheroid 15 is installed in the valve body 10, is supported by valve rod 27 and bottom axle 18, does 90 ° and rotatablely moves, and forms sealing pair with valve seat, is used for cutting off or connecting medium; Lower shaft sleeve 16 is installed between bottom axle 18 and the spheroid 15, as sliding bearing between the two; Lower seal pad 17 is installed between bottom axle 18 and the valve body 10, is used for sealing between the two; Bottom axle 18 is connected with valve body 10 with bolt 9, is used to support spheroid 15; Bolt 19 is used for being connected of bottom and valve body 10; Filler 20 with being installed in stuffing box 6 holes, is used for the sealing between valve rod 27 and the stuffing box 6; Thrust seal ring 21 is installed between valve rod 27 and the stuffing box 6, is used for sealing between the two; Bolt 22 is used for being connected of valve body 10 and valve gap 24; Lumen gasket seal 23 is used for the sealing between valve body 10 and the valve gap 24; Valve gap 24 is made up of a plurality of cylindrical bodys and hemisphere, is connected with valve body 10 with bolt; Seat ring 25 is used to hold the protection valve base sealing; Valve washer 26 is used for sutaining valve seat ring 25, transmits the elastic force of spring; Valve rod 27 is installed in the valve body 10, is set on the spheroid 15, is used for carry-over moment and gives spheroid 15, realizes switching motion; Upper shaft sleeve 28 is installed between gland 5 and the valve rod 27, promptly as the sliding bearing of valve rod 27, and fixation butterfly spring again; Bolt 29 is used for the connection between 31 supports and pneumatic actuator 1, the gland 5; Connecting sleeve 30 is link and the supports 31 between pneumatic actuator 1 and the valve rod 27, is used to support pneumatic actuator 1.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique under the situation that does not break away from spirit and scope of the present utility model, can also be made various conversion or variation.Therefore, all technological schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (6)
1. a pulverized coal injection ball valve is installed in the bf coal injection system pipeline, comprises a valve body, a valve rod, and a valve gap, a spheroid, a support, a bottom axle and a pneumatic actuator is characterized in that:
Described valve body is to be intersected by a plurality of cylindrical bodys and spheroid to constitute;
Described valve rod is a cylindrical body, is arranged in the described valve body, is set on the spheroid;
Described spheroid is arranged in the described valve body, is supported by a described valve rod and a bottom axle, does 90 ° and rotatablely moves, and forms sealing pair with valve seat;
Described valve gap is made of a plurality of cylindrical bodys and hemisphere, and is connected with described valve body with bolt;
Described support is square member, to support a pneumatic actuator;
Described bottom axle is a polycylinder, is connected with described valve body with bolt;
Described pneumatic actuator is connected with described support, to drive described valve rod, realizes the keying of valve.
2. pulverized coal injection ball valve as claimed in claim 1 is characterized in that, also comprises a valve base sealing, be arranged in the described valve seat ring recess, and and described spheroid formation sealing pair.
3. pulverized coal injection ball valve as claimed in claim 1 is characterized in that, more comprises a lumen gasket seal, is located between described valve body and the valve gap.
4. pulverized coal injection ball valve as claimed in claim 1 is characterized in that, more comprises sealing gasket, is arranged between described bottom axle and the described valve body.
5. pulverized coal injection ball valve as claimed in claim 1 is characterized in that, more comprises a valve washer, is arranged in the valve seat.
6. pulverized coal injection ball valve as claimed in claim 1 is characterized in that, more comprises a thrust seal ring, is arranged between described valve rod and the described stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201575468U CN201348060Y (en) | 2008-12-22 | 2008-12-22 | Pulverized coal injection ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201575468U CN201348060Y (en) | 2008-12-22 | 2008-12-22 | Pulverized coal injection ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348060Y true CN201348060Y (en) | 2009-11-18 |
Family
ID=41367528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201575468U Expired - Lifetime CN201348060Y (en) | 2008-12-22 | 2008-12-22 | Pulverized coal injection ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348060Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090590A (en) * | 2015-09-15 | 2015-11-25 | 上海电气阀门有限公司 | Top-mounted fixed ball valve free of valve seat avoiding |
| CN108591524A (en) * | 2018-07-06 | 2018-09-28 | 安徽姆大陆科技发展有限公司 | A kind of adjustable hemispherical valve |
-
2008
- 2008-12-22 CN CNU2008201575468U patent/CN201348060Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090590A (en) * | 2015-09-15 | 2015-11-25 | 上海电气阀门有限公司 | Top-mounted fixed ball valve free of valve seat avoiding |
| CN108591524A (en) * | 2018-07-06 | 2018-09-28 | 安徽姆大陆科技发展有限公司 | A kind of adjustable hemispherical valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |
|
| CX01 | Expiry of patent term |