CN218510208U

CN218510208U - Swing type slag discharge valve with end face soft seal and spherical surface hard seal combined

Info

Publication number: CN218510208U
Application number: CN202221624190.0U
Authority: CN
Inventors: 李玲瑜; 万健龙; 周兴; 欧阳光; 查笑乐; 刘志; 周中艳; 陈江元
Original assignee: Panzhihua Pangang Group Design & Research Institute Co ltd
Current assignee: Panzhihua Pangang Group Design & Research Institute Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-02-21
Anticipated expiration: 2032-06-27

Abstract

The utility model relates to a swing-type slag discharge valve with a soft end face seal and a hard spherical surface seal, which comprises a valve body, wherein the upper part of the valve body is provided with a feed inlet, the lower part of the valve body is provided with a discharge outlet, a valve seat is arranged in the feed inlet, and the valve seat is provided with an annular groove; the improved pneumatic cleaning valve is characterized in that a rotating shaft is arranged in the valve body, a swing frame is arranged on the side portion of the rotating shaft, a valve core is further arranged in the valve body, an annular soft sealing groove is formed in the valve core and located on the upper side of the valve core, an air inlet hole communicated with the annular groove is formed in the valve body, and a cleaning hole is formed in the valve seat. According to the invention, the three-layer seal and the valve core running structure in the direction approximately vertical to the seal surface can improve the sealing property of the slag discharging valve, and can avoid adverse effects of the conditions of hardening of the seal surface, slag adhesion and the like on the sealing effect and running of the valve, so that the valve can be smoothly opened and closed, the valve cannot be easily blocked, automatic slag discharging is realized, the automation degree of the device is improved, and the labor cost is lower.

Description

Swing type slag discharge valve with end face soft seal and spherical surface hard seal combined

Technical Field

The utility model belongs to the technical field of the sediment valve, in particular to compound oscillating sediment valve of terminal surface soft seal and sphere hard seal.

Background

The evaporator is a device for converting materials from liquid state to gas state, partial evaporators can discharge residues of the processed materials, the situation that tailings and sealing surfaces of slag discharge valves are hardened in the evaporation process exists in the evaporators with the residues discharged, such as a titanium tetrachloride ore pulp evaporation furnace, and meanwhile, the slag discharge valves of the evaporators are subjected to severe working conditions of high temperature, corrosion, slag adhesion, mixed existence of liquid state, solid state and gas state of the materials and the like. For the existing slag discharge valve, one currently adopted means is as follows: the slag discharging valve solves the problem of slag adhesion on a sealing surface by adopting modes of hard sealing, a scraper and the like. This approach has the following problems: the sealing surface of the slag discharge valve is seriously abraded, and the service life is short; the valve is easy to block and difficult to open and close; when slag is discharged, after the materials are agglomerated and blocked, no material poking measure is needed, and a valve needs to be disassembled for treatment; the condition of slag sticking on the sealing surface can not be maintained and processed.

And the other part of the valves adopt another slag discharge treatment means, namely a blind plate is arranged at a slag discharge port, and the blind plate is detached after evaporation is finished to finish slag discharge. This approach belongs to a laggard manual mode of operation and has the following problems: tailings are easy to diffuse, dust collection is difficult, and environmental protection requirements are not met; because the temperature of the tailings is high, the potential hazards of easy ignition and combustion and scalding to human bodies exist, and the safety requirements are not met; the operation is time-consuming and labor-consuming, and the labor cost is high.

In order to solve the problems, a swing type slag discharge valve with a soft end face seal and a hard spherical surface seal combined is required to be designed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a swing-type slag discharging valve with a soft end face seal and a hard spherical face seal, which comprises a valve body, wherein a feed port is arranged at the upper part of the valve body, a discharge port is arranged at the lower part of the valve body, a valve seat is arranged in the feed port, and an annular groove is arranged on the valve seat; the improved pneumatic cleaning valve is characterized in that a rotating shaft is arranged in the valve body, a swing frame is arranged on the side portion of the rotating shaft, a valve core is further arranged in the valve body, an annular soft sealing groove is formed in the valve core and located on the upper side of the valve core, an air inlet hole communicated with the annular groove is formed in the valve body, and a cleaning hole is formed in the valve seat.

Preferably, the spool includes a spool shaft connected to the swing frame, the spool having a spool spherical surface.

Preferably, a sealing ring is arranged in the annular soft sealing groove, and a sealing pressure ring is arranged on the sealing ring.

Preferably, a barrel material hole is formed in the side portion of the valve body, the barrel material hole is obliquely formed, and a detachable blind plate is arranged in the barrel material hole.

Preferably, the valve seat comprises a valve seat spherical surface matched with the valve core spherical surface of the valve core, and the valve seat further comprises a valve seat pressing ring arranged on the lower side of the valve seat pressing ring.

Preferably, the purge holes are equally spaced along the circumference of the annular groove.

Preferably, the sealing ring is made of high temperature resistant silicone rubber.

Preferably, the swing frame comprises a swing sleeve and a swing arm, the valve core shaft is located in the swing sleeve, a butterfly spring, a spherical seat and a pressure spring are further arranged in the swing sleeve, and the butterfly spring, the spherical seat valve core shaft and the pressure spring are sequentially arranged in the swing sleeve from bottom to top.

Preferably, the upper end of the valve core spherical surface of the valve core is a plane, and the lower end of the valve core shaft is a swinging spherical surface matched with the spherical seat.

Preferably, the valve body is made of steel materials, and valve body flanges are arranged on the upper side and the lower side of the valve body.

Preferably, be equipped with the access hole on the valve body, the access hole is equipped with removable cover plate.

Preferably, the swing spherical surface of the valve core shaft and the valve seat spherical surface of the valve seat are concentric spherical surfaces with the same radius or concentric spherical surfaces with different radii.

Preferably, the shaft shoulder clearance between the swing sleeve and the spherical seat is larger than the compression deformation amount of the butterfly spring.

Preferably, the sealing press ring is connected with the valve core through a plurality of bolts.

Preferably, the cross section of the valve seat pressing ring is of an arc-shaped structure.

Preferably, the cross section of the access hole is a rectangular structure.

Preferably, the valve core spherical surface, the valve seat spherical surface and the valve seat pressing ring of the valve core are subjected to surface hardening treatment.

The utility model discloses a following beneficial effect has:

(1) The utility model discloses in, still be equipped with the case in the valve body, the case includes the case axle that is connected with the swing span, the case has the case sphere, and the disk seat includes the case sphere assorted disk seat sphere with the case, and the swing sphere of case axle and the disk seat sphere of disk seat are concentric with radial sphere or concentric different radius spheres. The hard sealing of the valve ensures the sealing effect through the hard sealing of the spherical surface of the valve seat and the spherical surface of the valve core, the closing and opening directions of the valve are directions approximately vertical to the sealing surface, and the adverse effects of the conditions of sealing surface hardening, slag adhesion and the like on the sealing effect and the operation of the valve can be avoided; moreover, the upper part of the valve core is provided with an annular soft sealing groove, a sealing ring is arranged in the annular soft sealing groove, the sealing ring is made of high-temperature-resistant silicon rubber, the secondary sealing of the valve is formed by utilizing the sealing ring made of the high-temperature-resistant silicon rubber, and the elasticity of the silicon rubber can avoid interference on the spherical surface sealing of the valve seat and the spherical surface of the valve core; the valve body is provided with an air inlet communicated with the annular groove, the valve seat is provided with a blowing hole, the sealing surface of the valve can be conveniently blown and swept by the blowing hole, and the air inlet is arranged to introduce proper gas when the valve is closed, so that the air pressure of a cavity between the spherical seal and the end face seal of the sealing ring is maintained, the air seal effect is achieved, and the tertiary seal of the valve is formed; in conclusion, the sealing performance of the slag discharging valve can be improved through the three-layer sealing effect, the valve core can be swung along the rotating shaft to run, the adverse effects on the running of the valve caused by hardening of a sealing surface, slag adhesion and the like can be avoided, the valve can be smoothly opened and closed, the blockage cannot be easily caused, automatic slag discharging is realized, the automation degree of the device is improved, and the labor cost is lower;

(2) In the utility model, a butterfly spring, a spherical seat and a pressure spring are also arranged in the swing sleeve, the butterfly spring, a valve spindle of the spherical seat and the pressure spring are sequentially arranged in the swing sleeve from bottom to top, the shaft shoulder clearance between the swing sleeve and the spherical seat is larger than the compression deformation of the butterfly spring, the butterfly spring can be compressed when the valve is closed, and the butterfly spring keeps stable sealing pressure at the moment; the valve core and the spherical seat can be always attached by arranging the pressure spring, and the valve core and the spherical seat are not easy to loosen; the valve core shaft is provided with a valve core spherical surface, the lower end of the valve core shaft is supported on the spherical seat by adopting the spherical surface concentric with the valve core spherical surface, so that the valve core shaft can swing properly in all directions, the fitting degree of the valve core spherical surface can be effectively improved, the problem of poor spherical surface fitting caused by processing and mounting errors is avoided, the upper end of the valve core spherical surface of the valve core shaft is a plane, the plane is arranged, an evaporator stirring blade can be conveniently mounted, dead angles between the valve core spherical surface and the feed port cylinder body are avoided, and material bonding is reduced.

(3) In the utility model, the upper and lower sides of the valve body are both provided with the valve body flanges, and the valve body flanges are arranged to facilitate the processing and the assembly of the valve; the side part of the valve body is provided with a poking hole which is obliquely arranged and is provided with a detachable blind plate, and the poking hole is convenient for workers to temporarily handle the blocking condition; be equipped with the access hole on the valve body, the cross-section of access hole is the rectangle structure, and the access hole is equipped with can dismantle the apron, sets up the access hole and can make things convenient for the staff to overhaul and maintain the inner structure of valve.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows the internal structure schematic diagram of the slag discharge valve in the embodiment of the present invention.

In the figure: 1. a valve body; 101. a feed inlet; 102. an air inlet; 103. poking a material hole; 104. a discharge port; 105. an access hole; 106. a valve body flange; 107. a blind plate; 2. a valve seat; 201. an annular groove; 202. a purge hole; 203. a valve seat spherical surface; 204. a valve seat compression ring; 3. a valve core; 301. a valve core spherical surface; 302. sealing the pressure ring; 303. a seal ring; 304. a spool shaft; 305. swinging a spherical surface; 306. an annular soft sealing groove; 4. a pressure spring; 5. a spherical seat; 6. a butterfly spring; 7. a swing frame; 701. a swinging sleeve; 702. a swing arm; 8. a rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a swing type slag discharging valve with a soft end face seal and a hard spherical face seal, which comprises a valve body 1, wherein the valve body 1 is made of steel material, valve body flanges 106 are arranged on the upper side and the lower side of the valve body 1, and the valve body flanges 106 are arranged to facilitate the processing and the assembly of the valve; the upper part of the valve body 1 is provided with a feeding hole 101, the lower part of the valve body 1 is provided with a discharging hole 104, the side part of the valve body 1 is provided with a barrel material hole 103, the barrel material hole 103 is obliquely arranged, the barrel material hole 103 is provided with a detachable blind plate 107, and the barrel material hole 103 is arranged to facilitate the temporary handling of the blocking situation by workers; be equipped with access hole 105 on valve body 1, access hole 105's cross-section is the rectangular structure, and access hole 105 is equipped with can dismantle the apron, sets up access hole 105 and can make things convenient for the staff to overhaul and maintain the inner structure of valve.

A valve seat 2 is arranged in the feeding hole 101, and an annular groove 201 is formed in the valve seat 2; a rotating shaft 8 is arranged in the valve body 1, a swing frame 7 is arranged on the side portion of the rotating shaft 8, the swing frame 7 comprises a swing sleeve 701 and a swing arm 702, a valve core 3 is further arranged in the valve body 1, the valve core 3 comprises a valve core shaft 304 connected with the swing frame 7, the valve core shaft 304 is located in the swing sleeve 701, a butterfly spring 6, a spherical seat 5 and a pressure spring 4 are further arranged in the swing sleeve 701, the butterfly spring 6, the spherical seat 5, the valve core shaft 304 and the pressure spring 4 are sequentially arranged in the swing sleeve 701 from bottom to top, a shaft shoulder gap between the swing sleeve 701 and the spherical seat 5 is larger than a compression deformation amount of the butterfly spring 6, the butterfly spring 6 can be compressed when the valve is closed, and stable sealing pressure is kept by the butterfly spring 6; the valve core 3 and the spherical seat 5 can be always attached by arranging the pressure spring 4, and are not easy to loosen; the valve core 3 is provided with a valve core spherical surface 301, the lower end of the valve core shaft 304 is supported on the spherical seat 5 by adopting a spherical surface concentric with the valve core spherical surface 301, so that the valve core shaft 304 can properly swing in all directions, the fitting degree of the valve core spherical surface 301 can be effectively improved, the problem of poor spherical surface fitting caused by processing and installation errors is avoided, the upper end of the valve core spherical surface 301 of the valve core 3 is a plane, an evaporator stirring blade can be conveniently installed by arranging the plane, a dead angle between the valve core spherical surface 301 and a feed port 101 cylinder body is avoided, material bonding is reduced, and the lower end of the valve core shaft 304 is a swing spherical surface 305 matched with the spherical seat 5; the valve seat 2 comprises a valve seat spherical surface 203 matched with a valve core spherical surface 301 of the valve core 3, the swing spherical surface 305 at the lower end of the valve core shaft 304 and the valve seat spherical surface 203 of the valve seat 2 are concentric spherical surfaces with the same radius or concentric spherical surfaces with different radii, the sealing effect is ensured through the hard sealing of the valve seat spherical surface 203 and the valve core spherical surface 301 (for convenience of description, the hard sealing of the valve seat spherical surface 203 and the valve core spherical surface 301 is collectively called as spherical sealing), the closing and opening directions of the valve are directions approximately perpendicular to the sealing surfaces, and the adverse effects on the sealing effect and the operation of the valve caused by the hardening, slag adhesion and the like of the sealing surfaces can be avoided; the valve seat 2 further comprises a valve seat pressing ring 204 arranged on the lower side, the section of the valve seat pressing ring 204 is of an arc-shaped structure, and a valve core spherical surface 301, a valve seat spherical surface 203 and the valve seat pressing ring 204 of the valve core 3 are subjected to surface hardening treatment; the valve core 3 is provided with an annular soft sealing groove 306, the annular soft sealing groove 306 is located on the upper side of the valve core 3, a sealing ring 303 is arranged in the annular soft sealing groove 306, the sealing ring 303 is made of high-temperature-resistant silicon rubber, and the sealing ring 303 made of the high-temperature-resistant silicon rubber is used for forming secondary sealing of the valve (for convenience of description, the sealing of the sealing ring 303 is called end face rubber sealing), moreover, the elasticity of the silicon rubber can avoid interference on the spherical sealing of the valve seat spherical surface 203 and the valve core spherical surface 301, and it is noted that the application highest temperature is determined by the highest use temperature allowed by the sealing ring 303, and further, in order to improve the adaptive temperature of the slag discharge valve, the silicon rubber sealing ring 303 can be replaced by an elastic metal sealing ring; a sealing press ring 302 is arranged on the sealing ring 303, and the sealing press ring 302 is connected with the valve core 3 through a plurality of bolts; the valve body 1 is provided with the air inlet 102 communicated with the annular groove 201, the valve seat 2 is provided with the blowing holes 202, the blowing holes 202 are distributed at equal intervals along the circumferential direction of the annular groove 201, the blowing holes 202 are arranged to facilitate blowing of a sealing surface of the valve, in addition, the air inlet is arranged to introduce proper air when the valve is closed, the air pressure of a cavity between the spherical seal and the end face seal of the sealing ring 303 is kept, the air seal effect is achieved, and the three-time seal of the valve is formed.

When the valve needs to be closed, the air inlet hole 102 is used for air inlet, the rotating shaft 8 rotates in place clockwise according to the attached drawing 1, the spherical seal and the end face rubber seal are in a sealed state at the moment, if the blowing air quantity is larger, the valve is indicated to be leaked, the treatment is needed, if the blowing air quantity is cut off, the valve is indicated to be well sealed, the air supply quantity is adjusted to be in a micro air supply state, and the evaporation equipment can be used for normal production; when the valve needs to be opened, the rotating shaft 8 rotates 90 degrees anticlockwise according to the attached drawing 1, and the valve is opened; when the valve is opened, if the valve core 3 needs to be checked, the detachable cover plate of the access hole 105 can be detached, and then operations such as surface cleaning of the valve core 3 or replacement of the sealing ring 303 are performed.

When the equipment has a blockage situation, the blind plate 107 on the material poking hole 103 can be detached, and then the material poking operation can be carried out.

Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, modifications may be made to the technical solutions described in the foregoing embodiments, or some technical features may be replaced with others; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A swing type slag discharge valve with a soft end face seal and a hard spherical seal combined comprises a valve body (1), wherein a feed inlet (101) is arranged at the upper part of the valve body (1), a discharge outlet (104) is arranged at the lower part of the valve body (1),

a valve seat (2) is arranged in the feeding hole (101), and an annular groove (201) is formed in the valve seat (2); be equipped with pivot (8) in valve body (1), the lateral part of pivot (8) is equipped with swing span (7), still be equipped with case (3) in valve body (1), be equipped with annular soft seal groove (306) on case (3), annular soft seal groove (306) are located the upside of case (3), be equipped with inlet port (102) that are linked together with annular groove (201) on valve body (1), be equipped with on disk seat (2) and blow-off hole (202).

2. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 1,

the valve core (3) comprises a valve core shaft (304) connected with the swing frame (7), and the valve core (3) is provided with a valve core spherical surface (301).

3. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 1,

be equipped with sealing washer (303) in annular soft seal groove (306), be equipped with sealed clamping ring (302) on sealing washer (303).

4. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 1,

the side of the valve body (1) is provided with a poking hole (103), the poking hole (103) is obliquely arranged, and a detachable blind plate (107) is arranged in the poking hole (103).

5. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 1 or 3,

the valve seat (2) comprises a valve seat spherical surface (203) matched with a valve core spherical surface (301) of the valve core (3), and the valve seat (2) further comprises a valve seat pressing ring (204) arranged on the lower side of the valve seat pressing ring.

6. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal as claimed in claim 2,

the blowing holes (202) are distributed at equal intervals along the circumferential direction of the annular groove (201).

7. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal as claimed in claim 3,

the sealing ring (303) is made of high-temperature-resistant silicon rubber.

8. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal as claimed in claim 2,

the swing frame (7) comprises a swing sleeve (701) and a swing arm (702), the valve core shaft (304) is located in the swing sleeve (701), a butterfly spring (6), a spherical seat (5) and a pressure spring (4) are further arranged in the swing sleeve (701), and the butterfly spring (6), the spherical seat (5) and the valve core shaft (304) and the pressure spring (4) are sequentially arranged in the swing sleeve (701) from bottom to top.

9. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 8,

the upper end of a valve core spherical surface (301) of the valve core (3) is a plane, and the lower end of the valve core shaft (304) is a swinging spherical surface (305) matched with the spherical seat (5).

10. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 1,

the valve body (1) is made of steel materials, and valve body flanges (106) are arranged on the upper side and the lower side of the valve body (1).

11. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 1,

be equipped with access hole (105) on valve body (1), access hole (105) are equipped with and dismantle the apron.

12. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 8,

the swing spherical surface (305) of the valve core shaft (304) and the valve seat spherical surface (203) of the valve seat (2) are concentric spherical surfaces with the same radius or concentric spherical surfaces with different radii.

13. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 8,

the shaft shoulder clearance between the swing sleeve (701) and the spherical seat (5) is larger than the compression deformation amount of the butterfly spring (6).

14. The oscillating slagging valve combining soft end face seal and hard spherical seal according to claim 3,

the sealing press ring (302) is connected with the valve core (3) through a plurality of bolts.

15. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 5,

the cross section of the valve seat pressing ring (204) is of an arc-shaped structure.

16. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal as claimed in claim 11,

the cross section of the access hole (105) is of a rectangular structure.

17. The oscillating slag discharge valve combining the end face soft seal and the spherical surface hard seal according to claim 5,

and the valve core spherical surface (301), the valve seat spherical surface (203) and the valve seat pressing ring (204) of the valve core (3) are all subjected to surface hardening treatment.