CN204573175U - A kind of pneumatic rotary ball valve for steel works lime conveyance conduit - Google Patents
A kind of pneumatic rotary ball valve for steel works lime conveyance conduit Download PDFInfo
- Publication number
- CN204573175U CN204573175U CN201520196871.5U CN201520196871U CN204573175U CN 204573175 U CN204573175 U CN 204573175U CN 201520196871 U CN201520196871 U CN 201520196871U CN 204573175 U CN204573175 U CN 204573175U
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- valve
- valve rod
- spheroid
- separation sleeve
- conveyance conduit
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Abstract
The utility model relates to a kind of pneumatic rotary ball valve for steel works lime conveyance conduit, and the upper valve rod of described pneumatic rotary ball valve stretches into valve chamber and divides and be set with upper valve rod separation sleeve, and lower valve rod stretches into valve chamber and divides and be set with lower valve rod separation sleeve.Adopt soft or hard double seal between spheroid and the valve seat being arranged on valve body, body cavity arranges hard alloy layer; Spheroid working surface establishes wearing layer.Compared with prior art, the beneficial effects of the utility model are: 1) install separation sleeve additional by stretching into the endoceliac part of valve at upper valve rod and lower valve rod, the valve rod locking phenomenon effectively preventing from lime from entering causing in the gap of valve body relatively rotating parts; 2) by soft or hard double sealing structure and add wearing layer, there is the ability of antiscour, can rate of fault be reduced, extend valve working life more than 30%; 3) structure is simple, and be convenient to carry out to overhaul, safeguard, change, maintenance expenses cost is low, and using effect is good, is applicable to use on various grey matter material conveying pipe.
Description
Technical field
The utility model relates to a kind of spiral valve, particularly relates to a kind of pneumatic rotary ball valve for steel works lime conveyance conduit.
Background technique
The slag main component of steel output after steel works is smelted is silica, and silica and lime at high temperature can form calcium silicate, just can discharge molten steel outer and do not affect the quality of steel, in the smelting process of steel, therefore need to add lime in the converter used toward steel-making by the lime conveyance conduit of feeding system carry out slag making.To carry out the conveying in pipeline due to the lime in lime conveyance conduit by means of nitrogen pressure, therefore concerning the spiral valve that it carries out Trimmed sums adjustment, there is higher wanting.，
Spiral valve conventional is at present hard sealing ball valve, and lime mostly is calcium carbonate or calcium oxide, unlubricated function, therefore hard sealing ball valve is after there are wearing and tearing in operation a period of time, lime will enter in the gap of valve body and valve rod mounting hole, as be stacked into a certain degree then can locking as the valve rod of rotatable parts, cause hard sealing ball valve normally not work, have a strong impact on the utilization efficiency of spiral valve.In running, spiral valve, once break down, just needs whole feeding system to stop production and carries out repair and maintenance process, not only waste time and energy, also can affect the normal production of steel works, cause manufacturing efficiency to reduce.Because the hard sealing ball valve rate of fault that above reason causes is high, maintenance cost is high, and its working life and reliability are reduced greatly.
Summary of the invention
The utility model provides a kind of pneumatic rotary ball valve for steel works lime conveyance conduit, separation sleeve is installed additional by stretching into the endoceliac part of valve at upper valve rod and lower valve rod, the valve rod locking phenomenon effectively preventing from lime from entering causing in the gap of valve body relatively rotating parts, improve ball valve working life, reduce rate of fault.
In order to achieve the above object, the utility model realizes by the following technical solutions:
For a pneumatic rotary ball valve for steel works lime conveyance conduit, comprise valve body, lower valve rod, bonnet, divided ring, ring-type pressing plate, hexagon socket head cap screw, valve seat, spheroid, upper valve rod, filler, Gland, support and pneumatic actuator; Valve body and spheroid are by upper valve rod and lower valve rod support and connection, and valve body is connected with hexagon socket head cap screw by pressing plate with valve seat, valve body upper end and support fastening, valve body lower end is connected with bonnet; Upper valve rod top square shaft connects pneumatic actuator, realizes sealing, by divided ring to lower valve rod rotary spacing by Gland compressible filler; Described upper valve rod stretches into valve chamber and divides and be set with upper valve rod separation sleeve, and lower valve rod stretches into valve chamber and divides and be set with lower valve rod separation sleeve.
Described upper valve rod separation sleeve upper end is inserted in the upper mounting hole in valve body chamber, and lower end is inserted in spheroid and upper valve rod connecting end surface; Lower valve rod separation sleeve lower end is inserted in the lower mounting hole in valve body chamber, and upper end is inserted in spheroid and lower valve rod connecting end surface.
The material of described upper valve rod separation sleeve, lower valve rod separation sleeve is teflon, straight carbon steel or stainless steel.
Soft or hard double seal is adopted between described spheroid and the valve seat being arranged on valve body.
Described body cavity arranges hard alloy layer, is arranged by built-up welding.
Described spheroid working surface establishes wearing layer, and wearing layer is hard alloy abrasion-resistant layer or metal ceramic wear-resisting layer.
Compared with prior art, the beneficial effects of the utility model are:
1) separation sleeve is installed additional by stretching into the endoceliac part of valve at upper valve rod and lower valve rod, the valve rod locking phenomenon effectively preventing from lime from entering causing in the gap of valve body relatively rotating parts;
2) by soft or hard double sealing structure and add wearing layer, there is the ability of antiscour, can rate of fault be reduced, extend valve working life more than 30%;
3) structure is simple, and be convenient to carry out to overhaul, safeguard, change, maintenance expenses cost is low, and using effect is good, is applicable to use on various grey matter material conveying pipe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the I portion enlarged view in Fig. 1.
Fig. 3 is the II portion enlarged view in Fig. 1.
In figure: 1. valve body 2. lower valve rod 3. bonnet 4. seal ring 5. divided ring 6. ring-type pressing plate 7. hexagon socket head cap screw 8. hard seal ring 9. soft seal ring 10. valve seat 11. spheroid 12. wearing layer 13. upper valve rod 14. filler 15. Gland 16. support 17. pneumatic actuator 18. upper valve rod separation sleeve 19. lower valve rod separation sleeve
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1-Fig. 3, it is structural representation of the present utility model, a kind of pneumatic rotary ball valve for steel works lime conveyance conduit of the utility model, comprises valve body 1, lower valve rod 2, bonnet 3, divided ring 5, ring-type pressing plate 6, hexagon socket head cap screw 7, valve seat 10, spheroid 11, upper valve rod 13, filler 14, Gland 15, support 16 and pneumatic actuator 17; Valve body 1 and spheroid 11 are by upper valve rod 13 and lower valve rod 2 support and connection, and valve body 1 is connected with hexagon socket head cap screw 7 by pressing plate 6 with valve seat 10, valve body 1 upper end and support 16 fastening, valve body 1 lower end is connected with bonnet 3, and realizes sealing by seal ring 4; Upper valve rod 13 top square shaft connects pneumatic actuator 17, realizes sealing, by divided ring 5 pairs of lower valve rod 2 rotary spacings by Gland 15 compressible filler 14; Described upper valve rod 13 stretches into part in valve body 1 chamber and is set with upper valve rod separation sleeve 18, and lower valve rod 2 stretches into part in valve body 1 chamber and is set with lower valve rod separation sleeve 19.
Described upper valve rod separation sleeve 18 upper end is inserted in the upper mounting hole in valve body chamber, and spheroid 11 is inserted with in upper valve rod 13 connecting end surface in lower end; Lower valve rod separation sleeve 19 lower end is inserted in the lower mounting hole in valve body chamber, and spheroid 11 is inserted with in lower valve rod 2 connecting end surface in upper end.
The material of described upper valve rod separation sleeve 18, lower valve rod separation sleeve 19 is teflon, straight carbon steel or stainless steel.
Soft or hard double seal is adopted between described spheroid 11 and the valve seat 10 being arranged on valve body 1.
Described valve body 1 inner chamber arranges hard alloy layer, is arranged by built-up welding.
Described spheroid 11 working surface establishes wearing layer 12, and wearing layer is cemented carbide or metal ceramic wear-resisting layer.
The upper and lower of valve body 1 inner chamber is equipped with the mounting hole installing rotation valve rod, upper mounting hole is used for installing valve rod 13, lower mounting hole is for installing lower valve rod 2, valve body 1 is provided with spheroid 11 in chamber, and the top of spheroid 11, bottom are set on upper valve rod 13 and lower valve rod 2 also can realize valve opening and closing movement with upper and lower valve rod rotation; Valve seat 10 and soft or hard double sealing structure are established in the side of valve body 1 inner chamber, and spheroid 11 and hard seal ring 8 form sealing pair, and establish soft seal ring 9 between hard seal ring 8 and valve seat 10, the sealing surface of soft seal ring 9 slightly protrudes from the sealing surface of hard seal ring 8 and valve seat 10.Valve seat 10 is fixed on valve body 1 by ring-type pressing plate 6 and hexagon socket head cap screw 7.
Be filled with filler 14 between upper valve rod 13 and upper mounting hole inwall, filler 14 is oiliness graphite packing, and the upper valve rod 13 on the upside of filler 14 is set with Gland 15, and Gland 15 to be bolted on support 16.
Upper valve rod separation sleeve 18 upper end is inserted in the step hole of the upper mounting hole in valve body chamber, and spheroid 11 is inserted with in the step hole on upper valve rod 13 connecting end surface in lower end; Lower valve rod separation sleeve 19 lower end is inserted in the step hole of the lower mounting hole in valve body chamber, and spheroid 11 is inserted with in the step hole on lower valve rod 2 connecting end surface in upper end.Upper and lower valve rod separation sleeve 18,19 plays seal protection, prevents lime from entering valve body 1 with in the mounting hole site gap of valve rod 2,13, makes valve rod 2,13 occur locking phenomenon, cause the situation that valve cannot normally work.
The top of valve body 1 has been bolted support 16, support 16 is provided with pneumatic actuator 17, exporting in the middle of pneumatic actuator 17 and meeting Pan Chu is octagon incircle axle sleeve, as the output terminal of power, output terminal carries out being connected with the square shaft of upper valve rod 13 input end and drives it to rotate, and then driving spheroid 11 to rotate, the Trimmed sums for lime conveyance conduit regulates.
Pneumatic actuator 17, as the Power Drive Unit of pneumatic rotary ball valve, realizes the telecontrol of pneumatic actuator 17 keying, thus controls break-make and the adjustment of whole lime conveyance conduit by supporting remote PLC control system.
Claims (6)
1., for a pneumatic rotary ball valve for steel works lime conveyance conduit, comprise valve body, lower valve rod, bonnet, divided ring, ring-type pressing plate, hexagon socket head cap screw, valve seat, spheroid, upper valve rod, filler, Gland, support and pneumatic actuator; Valve body and spheroid are by upper valve rod and lower valve rod support and connection, and valve body is connected with hexagon socket head cap screw by pressing plate with valve seat, valve body upper end and support fastening, valve body lower end is connected with bonnet; Upper valve rod top square shaft connects pneumatic actuator, realizes sealing, by divided ring to lower valve rod rotary spacing by Gland compressible filler; It is characterized in that, described upper valve rod stretches into valve chamber and divides and be set with upper valve rod separation sleeve, and lower valve rod stretches into valve chamber and divides and be set with lower valve rod separation sleeve.
2. a kind of pneumatic rotary ball valve for steel works lime conveyance conduit according to claim 1, is characterized in that, described upper valve rod separation sleeve upper end is inserted in the upper mounting hole in valve body chamber, and lower end is inserted in spheroid and upper valve rod connecting end surface; Lower valve rod separation sleeve lower end is inserted in the lower mounting hole in valve body chamber, and upper end is inserted in spheroid and lower valve rod connecting end surface.
3. a kind of pneumatic rotary ball valve for steel works lime conveyance conduit according to claim 1, is characterized in that, the material of described upper valve rod separation sleeve, lower valve rod separation sleeve is teflon, straight carbon steel or stainless steel.
4. a kind of pneumatic rotary ball valve for steel works lime conveyance conduit according to claim 1, is characterized in that, adopts soft or hard double seal between described spheroid and the valve seat being arranged on valve body.
5. a kind of pneumatic rotary ball valve for steel works lime conveyance conduit according to claim 1, it is characterized in that, described body cavity arranges hard alloy layer, is arranged by built-up welding.
6. a kind of pneumatic rotary ball valve for steel works lime conveyance conduit according to claim 1, it is characterized in that, described spheroid working surface establishes wearing layer, and wearing layer is hard alloy abrasion-resistant layer or metal ceramic wear-resisting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196871.5U CN204573175U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rotary ball valve for steel works lime conveyance conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196871.5U CN204573175U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rotary ball valve for steel works lime conveyance conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573175U true CN204573175U (en) | 2015-08-19 |
Family
ID=53865816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520196871.5U Expired - Fee Related CN204573175U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rotary ball valve for steel works lime conveyance conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573175U (en) |
-
2015
- 2015-04-02 CN CN201520196871.5U patent/CN204573175U/en not_active Expired - Fee Related
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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: 20150819 Termination date: 20170402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |