Filtering structure and cinder valve thereof
By using crushing tools and filter plates in the ash unloading valve to crush the material, and combining the sealing structure and drying components, the jam or blockage problems caused by material agglomeration is solved, and the smooth passage of materials and the stability of the system is achieved.
Patent Information
- Application Number
- CN202510606135.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2025-08-01
AI Technical Summary
When existing ash discharge valves deal with dry and prone to caking, they are prone to clogging or blocking due to caking, which affects normal use.
The filter structure is adopted, including the crushing tool and the filter plate, and the material is cut and crushed through the crushing blade, combined with the sealing structure and drying components to ensure that the material is broken and dried before entering the valve body to prevent agglomeration.
Effectively prevent material agglomeration, improve the reliability and stability of the ash unloading valve, ensure smooth material passage, reduce the risk of blockage, and improve the operating stability and reliability of the system.
Smart Images
Figure CN120397736A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of filtering devices, and particularly relates to a filtering structure and a dust discharging valve thereof. Background Art
[0002] The dust discharging valve is mainly used to control the flow of solid materials (such as cement, fly ash, etc.) in the pneumatic conveying system. This valve has a full-bore design, allowing materials to pass through smoothly, and at the same time providing good sealing performance to prevent leakage.
[0003] A self-acting dust discharging valve is disclosed in the related art, including: a valve body, an ash inlet is provided at the upper part of the valve body, and an ash outlet is provided at the lower part of the valve body, and a partition block is fixedly provided at the middle position inside the valve body; a plugging assembly, the plugging assembly includes: a movable rod, a first elastic member, and an arc-shaped baffle, and two arc-shaped baffles can be spliced into a plugging plate; a pushing rod. When in use, dust enters from the ash inlet and accumulates on the plugging plate. Under the action of gravity, the plugging plate drives the movable rod to slide downward, squeezing the first elastic member, so that the dust can freely fall to the ash outlet and be discharged. After the dust is discharged, the movable rod automatically resets under the elastic force of the first elastic member. The whole process does not require external force, reducing the production cost.
[0004] When dealing with dry and easily caking materials, if the material humidity is relatively high, the material is likely to cake before entering the valve body or after entering the valve body. The caking of the material will cause the valve body to be stuck or blocked, resulting in the dust discharging valve being unable to be used normally. Summary of the Invention
[0005] In order to improve the problem of the valve body being stuck or blocked caused by material caking, the present application provides a filtering structure and a dust discharging valve thereof.
[0006] On the one hand, the present application provides a filtering structure, adopting the following technical solution: A filtering structure includes a crushing cutter, a filter plate, and a driving assembly, and the filter plate is located below the crushing cutter; The crushing cutter includes a crushing ring and crushing blades fixed inside the crushing ring, and a plurality of crushing blades are arranged at intervals around the axis of the crushing ring; The driving assembly includes a driven gear, a driving gear, and a driving source. The driven gear is sleeved and fixed outside the crushing ring, the driving gear meshes with the driven gear, and the driving source is used to drive the driving gear to rotate; The filter plate adopts a plate-like structure with sieve holes.
[0007] By adopting the above technical solution, a plurality of shredding blades are arranged at intervals around the axis of the shredding ring, which can fully cut and break the material before it enters the inside of the ash discharge valve, reduce the possibility of large-sized objects entering the inside of the ash discharge valve, and thus reduce the risk of blockage. The driven gear is sleeved and fixed outside the shredding ring, the driving gear meshes with the driven gear, and the driving source rotates the driving gear, so that the shredding tool realizes the shredding action, ensuring that the shredding tool can operate stably and efficiently, and improving the crushing efficiency and reliability.
[0008] On the other hand, the present application provides an ash discharge valve, which adopts the above-mentioned filtering structure and the following technical solutions: It further includes a valve body and a first sealing structure; The valve body includes a valve housing, a feed interface and a discharge interface communicated with the valve housing. The feed interface is located at one end of the valve housing, and the discharge interface is located at the other end of the valve housing; The shredding tool is rotatably arranged in the feed interface, and the filter plate is fixed on the inner side wall of the feed interface; The first sealing structure includes a sealing member and a first reset member. The sealing member is slidably arranged in the valve housing, and the first reset member is used to drive the sealing member to slide towards the direction close to the feed interface to disconnect the communication between the feed interface and the valve housing; One end of the feed interface far from the valve housing is in a flared shape.
[0009] By adopting the above technical solution, the shredding tool can rotate in the feed interface to cut the agglomerated material entering, ensuring that the material smoothly enters the valve housing. The filter plate further filters out large-sized materials, so that the materials that are not broken to the qualified size continue to stay near the shredding tool to participate in the shredding process, preventing the incompletely broken materials from causing blockage in the subsequent parts. The sealing member is slidably arranged in the valve housing. When there is no material, the first reset member pushes the sealing member towards the feed interface direction to disconnect the communication between the feed interface and the valve housing, so that the feed interface is in a closed state. When there is material entering, the sealing member moves downward under the pressure of the material to open the channel, allowing the material to pass through smoothly and realizing automatic feeding. The ash discharge valve can not only efficiently process dry and easily agglomerated materials, but also maintain good sealing performance when there is no material, improving the stability and reliability of the system.
[0010] Optionally, the sealing member includes a first sealing plate and a guiding slide bar fixed on one side of the first sealing plate. The cross-section of the first sealing plate gradually shrinks towards the direction close to the feed interface; A connecting seat is fixed in the valve housing, and a guiding chute is opened on the connecting seat. One end of the guiding slide bar slides in the guiding chute; The first reset member includes a first reset spring, and the first reset spring is fixed between the guiding slide bar and the inner bottom wall of the guiding chute.
[0011] By adopting the above technical solution, the cross-section of the first sealing plate tapers towards the direction close to the feeding interface, making it easier to push the first sealing plate to slide, so as to quickly open the connection between the feeding interface and the valve housing and improve the ash discharging efficiency. The guiding slide bar cooperates with the guiding chute to ensure the stable sliding of the sealing member in the valve housing and avoid poor sealing or jamming caused by deviation. The first reset spring, as the first reset member, can quickly drive the sealing member to reset when there is no material pressure and restore the closed state of the feeding interface.
[0012] Optionally, it further includes a drying assembly, and the drying assembly includes an air blowing nozzle, an air supply pipe communicated with the air blowing nozzle, and one end of the air blowing nozzle penetrates into the valve housing.
[0013] By adopting the above technical solution, the air blowing nozzle blows dry gas into the valve housing to keep the material in a dry state, which can effectively reduce the humidity of the material before entering the valve body and avoid the phenomenon of material caking caused by excessive humidity, thereby further preventing the problem of jamming or blockage in the valve body. In addition, after the ash discharging is completed, the drying assembly is continuously used to purge the inside of the valve housing to reduce the humidity inside the valve housing after the material is discharged and prevent the material from sticking inside the valve housing.
[0014] Optionally, one end of the air blowing nozzle located inside the valve housing includes an air outlet, a closing plate is rotatably arranged at the air outlet, and a second reset member is arranged on the air blowing nozzle, and the second reset member is used to drive the closing plate to rotate towards the direction close to the air outlet.
[0015] By adopting the above technical solution, when there is no air flow, the closing plate automatically closes the air outlet under the action of the second reset member, effectively preventing the entry of external humid air, thereby reducing the possibility of the material getting damp. When air blowing and drying are required, the air flow pushes the closing plate to open, ensuring that the dry gas can smoothly enter the valve housing and improving the drying efficiency.
[0016] Optionally, a plurality of the air blowing nozzles penetrate through the valve housing, and the air blowing nozzles penetrate through both ends of the valve housing, and the air outlets of the air blowing nozzles at both ends face in opposite directions.
[0017] By adopting the above technical solution, a plurality of air blowing nozzles are distributed on the valve housing, and the air outlets of the air blowing nozzles at both ends face in opposite directions, which not only increases the drying area, but also enables the blown gas to form a circulating air flow inside the valve housing, so as to better remove the moisture in the material and reduce the possibility of material caking. In addition, the circulating air flow can also help loosen the already formed caked material, prevent it from further increasing, and avoid the problem of jamming or blockage caused by caking.
[0018] Optionally, one end of the valve housing close to the feed interface is also communicated with a vent pipe. One end of the vent pipe is rotatably provided with an opening and closing cover plate. A limit baffle is also fixed on the outer side wall of the valve housing, and the limit baffle is used to abut against the opening and closing cover plate. An exhaust housing is also sleeved outside the valve housing, and one end of the vent pipe is located inside the exhaust housing. The bottom of the exhaust housing is communicated with an exhaust pipe and an ash discharge pipe. A filter sheet is arranged at the opening of the exhaust pipe. End covers are sleeved on one ends of the exhaust pipe and the ash discharge pipe respectively.
[0019] By adopting the above technical solutions, the design of the vent pipe and the opening and closing cover plate enables the internal pressure to be released by opening the opening and closing cover plate during the ash discharging process, avoiding damage to the valve body caused by excessive internal pressure. The limit baffle ensures that the opening and closing cover plate will not flip over excessively when opened, facilitating the opening and closing cover plate to return to its original position under the action of gravity. The arrangement of the exhaust housing further enhances the sealing performance of the system, preventing external impurities from entering the valve body. The coordinated use of the exhaust pipe and the ash discharge pipe can not only discharge waste gas in time, but also effectively collect and remove excess dust, keeping the working environment clean. The installation of the filter sheet prevents the material particles entering the exhaust housing from being discharged together with the gas, protecting the subsequent equipment from being polluted. The design of the end cover facilitates the maintenance and cleaning of the exhaust pipe and the ash discharge pipe, improving the maintainability of the overall device.
[0020] Optionally, a second blocking structure is also arranged in the valve housing. The second blocking structure includes a second blocking plate and a third reset member. There are two relatively arranged second blocking plates, and the second blocking plates are slidably connected in the valve housing. Drive surfaces are arranged on each of the second blocking plates, and the distance between the two drive surfaces gradually decreases in the direction away from the feed interface. The third reset member is used to drive the two second blocking plates to slide towards each other to block the discharge interface.
[0021] By adopting the above technical solutions, when the material accumulates to a certain extent in the valve housing, it will push the second blocking plate to slide along the drive surface, thereby opening the discharge interface and enabling the material to be discharged smoothly. As the material decreases, the third reset member will drive the two second blocking plates to slide towards each other to re-block the discharge interface, effectively preventing external air from entering the valve body and avoiding the problem of secondary caking caused by the entry of air.
[0022] Optionally, the end of the feed interface away from the valve housing is in a flared shape.
[0023] By adopting the above technical solution, the end of the feed interface far from the valve housing is flared, which can effectively increase the inlet area of the material entering the valve body, reduce the blockage phenomenon caused by the narrow space during the entry of the material, thereby improving the fluidity of the material and further enhancing the ash discharge efficiency and the operation stability of the equipment.
[0024] In summary, the present application includes at least one of the following beneficial effects: 1. A filtering structure is provided at the feed interface of the present application. Through the cooperation of the crushing tool and the filter plate, the filtering structure effectively crushes the agglomerated material before entering the valve housing, preventing the jamming or blockage problem caused by the agglomeration of the material, and improving the reliability and stability of the ash discharge valve; 2. Through the setting of the second sealing structure in the present application, when the material in the valve housing decreases, the third reset member is used to automatically drive the two second sealing plates to slide towards each other, re-sealing the discharge interface, effectively preventing external air from entering the valve body, and avoiding the problem of secondary agglomeration caused by the entry of air; 3. A drying component is provided in the present application. The air outlet nozzle in the drying component can blow dry gas into the valve housing, keeping the material and the inside of the valve housing dry, effectively reducing the humidity of the material before entering the valve body, avoiding the agglomeration phenomenon of the material caused by excessive humidity, and further preventing the jamming or blockage problem in the valve body. Description of the Drawings
[0025] Figure 1 It is a schematic cross-sectional structure view of the ash discharge valve showing the filtering structure in Embodiment 1 of the present application; Figure 2 It is a schematic cross-sectional structure view of the ash discharge valve showing the first sealing structure and the second sealing structure in Embodiment 1 of the present application; Figure 3 It is Figure 2 The partial enlarged structure view at A in Description of reference numerals: 1. Valve body; 11. Valve housing; 12. Feed interface; 13. Discharge interface; 14. Connecting seat; 141. Guide chute; 15. Vent pipe; 151. Opening and closing cover plate; 116. Limit baffle; 17. Storage housing; 18. Connecting groove body; 2. Filter structure; 21. Shredding tool; 211. Shredding ring; 212. Shredding blade; 22. Filter plate; 23. Driving assembly; 231. Driven gear; 232. Driving gear; 233. Driving source; 3. First sealing structure; 31. Sealing member; 311. First sealing plate; 312. Guide slide bar; 32. First return spring; 4. Drying assembly; 41. Air blowing nozzle; 42. Air supply pipe; 43. Closing plate; 44. Second return member; 5. Exhaust housing; 51. Exhaust pipe; 52. Ash discharge pipe; 53. End cover; 6. Filter sheet; 7. Second sealing structure; 71. Second sealing plate; 711. Driving surface; 72. Third return member; 8. Elastic sealing gasket. Detailed implementation mode
[0026] The following is combined with the attached Figure 1 - attached Figure 3 to further elaborate on this application in detail.
[0027] Example 1: Refer to Figure 1 and Figure 2 This embodiment of the present application provides a dust discharge valve, including a valve body 1, a filter structure 2, a first sealing structure 3, and a second sealing structure 7. The valve body 1 includes a valve housing 11, a feed interface 12 and a discharge interface 13 connected to the valve housing 11. The valve housing 11 serves as the main part, used to accommodate materials and perform feeding and discharging through the feed interface 12 and the discharge interface 13. The material of the valve housing 11 can be selected as high-strength stainless steel or aluminum alloy to enhance corrosion resistance and wear resistance. The feed interface 12 is located at one end of the valve housing 11 and is used to introduce materials. The end of the feed interface 12 away from the valve housing 11 is flared, specifically set as a conical trumpet shape, to facilitate guiding the materials to smoothly enter the interior of the valve body 1. The discharge interface 13 is located at the other end of the valve housing 11 and is used to discharge materials.
[0028] Refer to Figure 1, the filtering structure 2 includes a shredding tool 21, a driving assembly 23, and a filter plate 22. The shredding tool 21 includes a shredding ring 211 and shredding blades 212 fixed within the shredding ring 211. The shredding ring 211 is located at one end of the feed interface 12 close to the valve housing 11. A plurality of shredding blades 212 are axially spaced and fixed around the shredding ring 211, and the number of shredding blades 212 can be adjusted according to actual needs. In this embodiment, the shredding ring 211 can be made of wear-resistant steel, and the shredding blades 212 can be made of high-hardness alloy materials to ensure the cutting efficiency. The driving assembly 23 includes a driven gear 231, a driving gear 232, and a driving source 233. The driven gear 231 is sleeved and fixed outside the shredding ring 211 and rotates synchronously with it. The driving gear 232 meshes with the driven gear 231. A receiving housing 17 is integrally formed at the feed interface 12, and the receiving housing 17 is in communication with the feed interface 12. Both the driving gear 232 and the driven gear 231 are located within the receiving housing 17. The driving source 233 is specifically a servo motor. One end of the output shaft of the driving source 233 passes through the receiving housing 17 and is coaxially fixed to the driving gear 232. Starting the driving source 233 can cause the filtering structure 2 to perform the shredding action.
[0029] The filter plate 22 is fixed within the feed interface 12. The filter plate 22 is located below the shredding tool 21 and is disposed close to the shredding tool 21. The distance between the filter plate 22 and the shredding tool 21 should be appropriate, which can effectively prevent large-sized objects from entering the valve body 1 without affecting the normal operation of the shredding tool 21. The filter plate 22 can block large-sized materials from entering the interior of the valve housing 11 to avoid blockage. The filter plate 22 can be in the form of sieve holes, and the aperture size can be selected according to the material characteristics.
[0030] Refer to Figure 2, the first plugging structure 3 is disposed near the feed interface 12. The first plugging structure 3 includes a plugging member 31 and a first reset member, and the plugging member 31 includes a first plugging plate 311 and a guiding slide bar 312. The cross-section of the first plugging plate 311 tapers towards the direction close to the feed interface 12. In this embodiment, the first plugging plate 311 is specifically arranged as an arc-shaped plate that fits the inner side wall of the valve housing 11, which helps to more tightly plug the feed interface 12. The guiding slide bar 312 is fixed to one side of the first plugging plate 311. A connecting seat 14 is fixed inside the valve housing 11, and a guiding chute 141 is formed on the connecting seat 14. One end of the guiding slide bar 312 slides in the guiding chute 141. In this embodiment, specifically two guiding slide bars 312 are provided, and two guiding chutes 141 and the first reset member are also provided corresponding to the guiding slide bars 312. The first reset member is selected as the first reset spring 32, and the first reset spring 32 is fixed between the guiding slide bar 312 and the inner bottom wall of the guiding chute 141. When there is no material or less material above the first plugging plate 311, the first reset spring 32 can drive the first plugging plate 311 to slide towards the direction close to the feed interface 12 to disconnect the connection between the feed interface 12 and the valve housing 11, so that the feed interface 12 is in a closed state. In order to improve the sealing performance when the first plugging plate 311 plugs, an elastic plugging gasket 8 is also fixed on the upper end surface of the first plugging plate 311.
[0031] When the material enters the feed interface 12, the crushing cutter 21 rotates at a high speed under the action of the driving assembly 23 to break up the agglomerated material into fine particles. The fine particles enter the inside of the valve housing 11 through the filter plate 22, avoiding the entry of large-sized objects into the valve body 1 and causing blockage. If the material temporarily stops flowing in, the plugging member 31 automatically slides to the feed interface 12 under the action of the first reset member to cut off the feed channel and prevent air or other impurities from entering the inside of the valve body 1.
[0032] Refer to Figure 2, the second blocking structure 7 is located at one end of the valve housing 11 close to the discharge interface 13. The second blocking structure 7 includes a second blocking plate 71 and a third reset member 72. There are two relatively arranged second blocking plates 71. A driving surface 711 is machined on the second blocking plate 71, and the distance between the driving surfaces 711 on the two second blocking plates 71 gradually decreases in the direction away from the feed interface 12. In this embodiment, the second blocking plate 71 is also arranged as an arc-shaped plate that fits the inner wall of the valve housing 11. In this embodiment, the material of the second blocking plate 71 can be selected from wear-resistant steel or ceramics to adapt to the high-temperature and high-pressure working environment. A connecting groove body 18 is fixed inside the valve housing 11, and there are two connecting groove bodies 18 corresponding to the second blocking plate 71. A sliding channel is formed between the connecting groove body 18 and the inner wall of the valve housing 11. One end of the second blocking plate 71 slides in the sliding channel, realizing the sliding connection of the second blocking plate 71 in the valve housing 11. The third reset member 72 is selected as the second return spring. The second return spring is connected between the second blocking plate 71 and the inner wall of the connecting groove body 18. The second return spring can be used to drive the two second blocking plates 71 to slide towards each other to block the discharge interface 13.
[0033] Referring to Figure 2 and Figure 3 , a drying component 4 is further arranged on the valve body 1. The drying component 4 includes an air supply pipe 42 and an air outlet blowing nozzle 41. One end of the air outlet blowing nozzle 41 penetrates into the valve housing 11 and is fixedly connected to the valve housing 11. The air outlet blowing nozzle 41 can be fixed on the inner wall of the valve housing 11 by means of threads or welding to ensure firmness and reliability. One end of the air outlet blowing nozzle 41 located inside the valve housing 11 includes an air outlet. A closing plate 43 is arranged at the air outlet. One end of the closing plate 43 is hinged to the air outlet blowing nozzle 41. By rotating the closing plate 43, the opening and closing of the air outlet blowing nozzle 41 can be controlled. A second reset member 44 is fixed on the air outlet blowing nozzle 41. The second reset member 44 is used to drive the closing plate 43 to rotate towards the direction close to the air outlet to restore it to the initial position. The second reset member 44 can be selected from a torsion spring or a tension spring. In this embodiment, the second reset member 44 is specifically arranged as an elastic pull rope. One end of the elastic pull rope is fixed to the closing plate 43, and the other end is fixed to the air outlet blowing nozzle 41. The setting of the second reset member 44 enables the closing plate 43 to automatically close when the drying component 4 is not in use, preventing foreign objects from entering. The material of the closing plate 43 can be selected from lightweight metals or plastics to reduce weight while maintaining sufficient strength.
[0034] The air supply pipe 42 is located outside the valve housing 11. The air supply pipe 42 is communicated with the air outlet blowing nozzle 41 to provide dry gas for it. The air supply pipe 42 can be a flexible pipe or a rigid pipe, which can be flexibly selected according to the on-site layout. In order to better purge the entire inside of the valve housing 11, a plurality of air outlet blowing nozzles 41 are spaced and penetrated through both ends of the valve housing 11, and the air outlets of the air outlet blowing nozzles 41 at both ends face in opposite directions to form a cross-flow of air to improve the drying effect.
[0035] Referring toFigure 2 The end of the valve housing 11 near the feed interface 12 is also connected to a vent pipe 15, which is used to discharge excess gas when the drying component 4 is in action. One end of the vent pipe 15 is hinged with an opening and closing cover plate 151, which is used to control the venting speed. A limit baffle 116 is also fixed on the outer wall of the valve housing 11. When the opening and closing cover plate 151 is turned open by the gas, it can be offset against the limit baffle 116. The limit baffle 116 limits the opening angle of the opening and closing cover plate 151, so that the rotation angle of the limit baffle 116 is less than 90°. An exhaust housing 5 is also provided on the outside of the valve housing 11. The exhaust housing 5 is fixedly connected to the feed interface 12 and the discharge interface 13, and the vent pipe 15 is located inside the exhaust housing 5. The bottom of the exhaust housing 5 is connected to an exhaust pipe 51 and an ash discharge pipe 52. A filter plate 6 is provided at the opening of the exhaust pipe 51 to prevent dust from being discharged along the exhaust pipe 51. One end of the exhaust pipe 51 and the ash discharge pipe 52 is provided with an end cover 53, and the end cover 53 is connected to the exhaust pipe 51 and the ash discharge pipe 52 by a threaded connection, which is convenient for disassembly and maintenance.
[0036] When the material enters the valve housing 11, the drying assembly 4 activates, and the air outlet nozzle 41 blows out dry air, removing moisture from the material surface and preventing caking. Simultaneously, the sealing plate closes promptly under the action of the second reset member 44 to prevent excessive external air from entering. When a certain amount of excess gas accumulates within the valve housing 11, it is discharged through the vent pipe 15. Furthermore, the exhaust pipe 51 and ash discharge pipe 52 within the exhaust housing 5 also assist in ensuring a clean and unobstructed interior of the valve body 1. This design not only enhances the anti-clogging capability of the ash discharge valve but also extends the service life of the equipment to a certain extent.
[0037] The implementation principle of an ash discharge valve in an embodiment of the present application is as follows: the drive source 233 is activated, and the material enters the valve housing 11 from the feed interface 12. As the material passes through the feed interface 12, the filter structure 2 can break up the agglomerated material into fine particles, allowing the material to smoothly enter the valve housing 11. When the material accumulates to a certain amount on the first sealing plate 311, the first sealing plate 311 slides down under the action of the material's gravity, connecting the valve housing 11 with the feed interface 12, and the material falls into the valve housing 11. When the material accumulates to a certain level in the valve housing 11, it pushes the second sealing plate 71 to slide along the drive surface 711, thereby opening the discharge interface 13 and allowing the material to be discharged smoothly.
[0038] Example 2: This embodiment discloses a method for using an ash discharge valve, comprising the following steps: S1, connect one end of the feed interface 12 to the ash unloading area, so that the material can enter the valve housing 11 along the feed interface 12.
[0039] S2. Before the material enters the valve housing 11, start the drying assembly 4. The air outlet nozzle 41 blows out drying gas to carry away the moisture on the inner wall surface of the valve body 1 and prevent the material from caking after entering. At this time, open the end cover 53 on the exhaust pipe 51 so that the excess gas is discharged along the discharge pipe 15, the exhaust housing 5 and the exhaust pipe 51.
[0040] S3. Start the filtering structure 2. The crushing cutter 21 rotates at a high speed through the driving assembly 23 to break up the caked material into fine particles.
[0041] S4. The fine particles enter the inside of the valve housing 11 through the filter plate 22 to prevent large-sized objects from entering the valve body 1 and causing blockage.
[0042] S5. After a certain amount of material accumulates in the valve housing 11, it pushes the two second sealing plates 71 to move away from each other, enabling the material to be discharged along the discharge interface 13.
[0043] S6. If the material temporarily stops flowing in, the blocking member 31 automatically slides to the feed interface 12 under the action of the first reset member to cut off the feed channel and prevent air or other impurities from entering the inside of the valve body 1.
[0044] S7. If the material in the valve housing 11 is emptied, the two second sealing plates 71 move towards each other under the action of the third reset member 72 to cut off the discharge channel and prevent air or other impurities from entering the inside of the valve body 1.
[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A filtering structure, characterized in that , including a shredding cutter (21), a filter plate (22) and a driving assembly (23), the filter plate (22) being located below the shredding cutter (21); The shredding cutter (21) includes a shredding ring (211) and shredding blades (212) fixed to the inner side of the shredding ring (211), and a plurality of the shredding blades (212) are arranged at intervals around the axis of the shredding ring (211); The driving assembly (23) includes a driven gear (231), a driving gear (232) and a driving source (233), the driven gear (231) being sleeved and fixed outside the shredding ring (211), the driving gear (232) meshing with the driven gear (231), and the driving source (233) being used to drive the driving gear (232) to rotate; The filter plate (22) adopts a plate-like structure with sieve holes.
2. A dust discharge valve, characterized in that: Adopting the filtering structure as described in claim 1, it further includes a valve body (1) and a first blocking structure (3); The valve body (1) includes a valve housing (11), a feed interface (12) and a discharge interface (13) communicated with the valve housing (11), the feed interface (12) being located at one end of the valve housing (11), and the discharge interface (13) being located at the other end of the valve housing (11); The shredding cutter (21) is rotatably arranged in the feed interface (12), and the filter plate (22) is fixed to the inner side wall of the feed interface (12); The first blocking structure (3) includes a blocking member (31) and a first reset member, the blocking member (31) being slidably arranged in the valve housing (11), and the first reset member being used to drive the blocking member (31) to slide towards the direction close to the feed interface (12) to disconnect the communication between the feed interface (12) and the valve housing (11); One end of the feed interface (12) away from the valve housing (11) is flared.
3. A dust discharge valve according to claim 2, characterized in that , the blocking member (31) includes a first blocking plate (311) and a guiding slide bar (312) fixed to one side of the first blocking plate (311), and the cross section of the first blocking plate (311) tapers towards the direction close to the feed interface (12); A connecting seat (14) is fixed in the valve housing (11), and a guiding chute (141) is formed on the connecting seat (14), and one end of the guiding slide bar (312) slides in the guiding chute (141); The first reset member includes a first reset spring (32), and the first reset spring (32) is fixed between the guiding slide bar (312) and the inner bottom wall of the guiding chute (141).
4. The ash discharge valve according to claim 2, characterized in that , it further includes a drying assembly (4), the drying assembly (4) including an air blowing nozzle (41), an air supply pipe (42) communicated with the air blowing nozzle (41), and one end of the air blowing nozzle (41) penetrating into the valve housing (11).
5. The ash discharge valve according to claim 4, characterized in that , One end of the air outlet nozzle (41) located inside the valve housing (11) includes an air outlet, and a closing plate (43) is rotatably arranged at the air outlet. A second reset member (44) is arranged on the air outlet nozzle (41), and the second reset member (44) is used to drive the closing plate (43) to rotate towards the direction close to the air outlet.
6. The ash discharge valve according to claim 5, characterized in that , A plurality of the air outlet nozzles (41) penetrate through the valve housing (11), and the air outlet nozzles (41) penetrate through both ends of the valve housing (11), and the air outlets of the air outlet nozzles (41) at both ends face in opposite directions.
7. A dust discharge valve according to claim 4, characterized in that , One end of the valve housing (11) close to the feed interface (12) is also communicated with an air discharge pipe (15). One end of the air discharge pipe (15) is also rotatably provided with an opening and closing cover plate (151). A limit baffle (116) is also fixed on the outer side wall of the valve housing (11), and the limit baffle (116) is used to abut against the opening and closing cover plate (151); , An exhaust housing (5) is also sleeved outside the valve housing (11), and one end of the air discharge pipe (15) is located inside the exhaust housing (5); , The bottom of the exhaust housing (5) is communicated with an exhaust pipe (51) and an ash discharge pipe (52). A filter sheet (6) is arranged at the opening of the exhaust pipe (51), and end covers (53) are sleeved on one ends of the exhaust pipe (51) and the ash discharge pipe (52).
8. The ash discharge valve according to claim 2, characterized in that , A second plugging structure (7) is also arranged inside the valve housing (11). The second plugging structure (7) includes a second plugging plate (71) and a third reset member (72). There are two relatively arranged second plugging plates (71), and the second plugging plates (71) are slidably connected inside the valve housing (11); , A driving surface (711) is arranged on each of the second plugging plates (71), and the distance between the two driving surfaces (711) gradually decreases in the direction away from the feed interface (12); , The third reset member (72) is used to drive the two second plugging plates (71) to slide towards each other to plug the discharge interface (13).