A new type of special pulse for pulverizer
By improving the bag fixing method and nozzle connection structure of the pulverizer pulse device, the problem of inconvenience in replacing the bag and installing/removing the nozzle in the existing device has been solved, thus improving work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州市宏寰机械有限公司
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-09
AI Technical Summary
The existing pulse device of the crusher is inconvenient for changing the filter bag, installing and disassembling the nozzle, and connecting the air supply pipe, resulting in a large workload and low efficiency.
It features an elastic cloth bag and an easy-to-disassemble nozzle design. The elastic cloth bag secures the cage, simplifying cloth bag replacement; the trapezoidal groove and fixed ball structure facilitate nozzle connection; a quick-release handle and protective cover simplify top cover operation; and a sealing ring prevents air leakage.
It facilitates bag replacement and nozzle installation/removal, improves work efficiency, reduces workload, and enhances the ease of use and safety of the crusher.
Smart Images

Figure CN224332340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulverizers, and in particular to a novel pulse for pulverizers. Background Technology
[0002] Crushing feed ingredients is a crucial step in feed processing. Crushing increases the total surface area of feed particles per unit mass, increases the solubility of feed nutrients in animal digestive fluids, and improves animal digestibility. However, the use of feed grinders can cause a large amount of dust to float in the air, affecting people's vision and respiratory tract, thus causing respiratory diseases. In more serious cases, it can directly cause dust explosions. Therefore, pulse dust collectors are needed to remove dust.
[0003] A search of Chinese patents revealed that the system, with publication number CN207576623U, describes a pulse dust removal system for a feed grinder. The system connects the top of an elevator to a grinding chamber, and the bottom of the grinding chamber to the grinder. A feeding port is located at the bottom of the grinder and connected to a dust collector via a dust removal pipe. A screen plate is installed at the feeding port connected to the dust removal pipe. The screen plate is connected to a motor via a rotating shaft. The screen plate has screen holes, narrow in the middle and flared outwards at both ends. A filter screen is embedded in the middle of each screen hole. A storage cavity is formed between adjacent screen holes on the screen plate, and a hammer ball is embedded within the cavity. A silencer is installed at the outlet of the dust collector's exhaust pipe, and a bag inspection port is located at the top of the dust collector. This system enables precise screening, avoiding feed particle waste and achieving thorough dust removal. The hammer balls move up and down along the storage cavity of the screen plate, preventing adhesion to the inner wall of the screen holes, ensuring the cleanliness of the screen plate itself, and improving environmental hygiene.
[0004] Existing pulse jet devices are inconvenient for replacing filter bags. Generally, when installing the filter bag, the venturi tube is screwed onto the tube sheet, the cage is threaded onto the venturi tube, and the filter bag is then placed over the cage and connected to it via clamps. This installation process is complex. If maintenance or replacement is needed, personnel must enter through the maintenance door, remove the filter bag from the front, and reach the location where replacement is required. The entire replacement process is cumbersome, significantly increasing workload and reducing efficiency. It also makes it inconvenient to install and remove the nozzle, which is typically a single unit. The traditional pulse jet has an internal nozzle and an external nozzle flange welded to the nozzle pipe, making it impossible to disassemble the nozzle pipe individually. Workers must lift the entire pulse jet cover and remove each nozzle one by one before the nozzle pipe can be removed. This disassembly and assembly process is cumbersome, inconvenient to use, and also makes connecting the air supply pipe difficult. The air supply pipe is typically connected to the air tank via threads, requiring manual disassembly and assembly, which is very troublesome, increases workload, and reduces work efficiency. To solve these problems, we propose a new type of pulse jet specifically for pulverizers. Utility Model Content
[0005] The purpose of this invention is to provide a new type of pulse for crushers, which has the advantages of easy replacement of the cloth bag, easy installation and disassembly of the nozzle, and easy connection of the air supply pipe.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a novel pulse for a crusher, comprising a lower housing, a perforated plate bolted between the inner walls of the lower housing, a top cover on the top of the lower housing, an air outlet on the surface of the top cover located in the middle, an inspection door on the surface of the lower housing, a cage frame extending through the inner wall of the perforated plate, an elastic cloth bag fitted on the surface of the cage frame, the opening of the elastic cloth bag being tightened by an elastic rope, a first spring bolted to the bottom of the cage frame, an elastic ring bolted to the top of the cage frame, the diameter of the elastic ring being larger than the diameter of the cage frame, an air chamber bolted to the surface of the lower housing, a pulse solenoid valve connected to the top of the air chamber, a through-wall connector connected to the other end of the pulse solenoid valve, the through-wall connector being fixedly fitted to the inner wall of the lower housing, a nozzle connected to the other end of the through-wall connector, and a nozzle nozzle connected to the bottom of the nozzle.
[0007] By adopting the above technical solution, after the cage frame is placed in using elastic cloth bags, the top of the cage frame can be tightened through elastic rings to make the elastic cloth bags more secure. During disassembly, simply stand on the tube sheet and pull out the elastic cloth bags upwards to complete the one-to-one replacement, thereby facilitating the replacement of cloth bags, reducing workload, and improving replacement efficiency. Workers only need to enter from the top of the top cover, loosen the through-wall connector, and pull out the nozzle to remove the nozzle from the top of the top cover, thereby facilitating the installation and removal of the nozzle, reducing workload, improving installation and removal efficiency, and making it convenient to use.
[0008] The present invention is further configured such that: a valve is connected to the bottom of the air tank, a connecting seat is connected to the bottom of the valve, an air supply pipe is slidably sleeved on the inner wall of the connecting seat, a fixing ring is fixedly sleeved on the surface of the connecting seat, a sliding cylinder is slidably sleeved on the surface of the connecting seat, a second spring is provided between the sliding cylinder and the fixing ring, a trapezoidal groove is provided on the inner wall of the sliding cylinder, a fixing ball is provided on the inner wall of the connecting seat, and a snap-fit groove is provided on the surface of the air supply pipe, and the snap-fit groove snaps into the fixing ball.
[0009] By adopting the above technical solution, the trapezoidal groove is moved by moving the sliding cylinder. The movement of the trapezoidal groove causes the fixed ball to roll into the trapezoidal groove. The air supply pipe is inserted into the connector. The sliding cylinder is then released, causing the trapezoidal groove to drive the fixed ball back to its original position. The fixed ball engages with the snap-fit groove, thus securing the ball. This method facilitates connection, reduces workload, and improves work efficiency.
[0010] The present invention is further configured such that a protective cover is installed on the surface of the lower housing, and the protective cover is located on top of the air bag.
[0011] The above technical solution protects the air bag assembly by setting up a protective cover.
[0012] The present invention is further configured such that: a first quick-release handle and a second quick-release handle are respectively attached to the top of the top cover and the surface of the lower shell on both sides, and the first quick-release handle acts on the middle top cover, and the second quick-release handle acts on the entire top cover.
[0013] By adopting the above technical solution and setting a first quick-release handle and a second quick-release handle, it is convenient to install and remove the top cover.
[0014] The present invention is further configured such that a U-shaped handle is bolted to the top of the top cover.
[0015] By adopting the above technical solution and setting a U-shaped handle, it is easy to put on and take off the top cover.
[0016] The present invention is further provided that the surface of the slide tube is provided with anti-slip texture.
[0017] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.
[0018] The present invention is further configured such that a base plate is bolted to the bottom of the first spring.
[0019] By adopting the above technical solution, a base plate is set to support the elastic filter bag, ensuring the shape of the elastic filter bag and facilitating dust removal.
[0020] The present invention is further provided with a sealing ring between the air supply pipe and the connecting seat.
[0021] By adopting the above technical solution, a sealing ring is set to prevent air leakage.
[0022] In summary, this utility model has the following beneficial effects:
[0023] 1. This utility model uses an elastic cloth bag. After the cage frame is placed inside, the top of the cage frame can be tightened by the elastic ring, making the elastic cloth bag more secure. When disassembling, you only need to stand on the tube sheet and pull the elastic cloth bag upward to complete the one-to-one replacement, thereby facilitating the replacement of cloth bags, reducing the workload, and improving the replacement efficiency.
[0024] 2. This utility model allows workers to easily remove the nozzle from the top of the top cover by simply entering from the top, loosening the through-wall connector, and pulling out the nozzle. This facilitates the installation and removal of the nozzle, reduces workload, improves installation and removal efficiency, and makes it convenient to use.
[0025] 3. This utility model moves the trapezoidal groove by moving the sliding cylinder, and the movement of the trapezoidal groove causes the fixed ball to roll into the trapezoidal groove. The air supply pipe is inserted into the connecting seat, the sliding cylinder is released, and the trapezoidal groove drives the fixed ball to return to its original position. The fixed ball engages with the snap-fit groove, thus fixing it in place. This method can facilitate connection, reduce workload, and improve work efficiency. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural view of the present invention;
[0027] Figure 2 This is a three-dimensional cross-sectional view of the structure of this utility model;
[0028] Figure 3 This is a partial structural cross-sectional view of the present invention;
[0029] Figure 4 This is a partial structural cross-sectional view of the present invention;
[0030] Figure 5 This is a partial structural cross-sectional view of the present invention;
[0031] Figure 6 This is a bottom view of a partial structure of this utility model.
[0032] Reference numerals: 1. Lower housing; 2. Perforated plate; 3. Top cover; 4. Air outlet; 5. Inspection door; 6. Cage frame; 7. Elastic filter bag; 8. First spring; 9. Elastic ring; 10. Air tank; 11. Pulse solenoid valve; 12. Through-wall connector; 13. Nozzle; 14. Nozzle; 15. Valve; 16. Connecting seat; 17. Air supply pipe; 18. Fixing ring; 19. Slide cylinder; 20. Second spring; 21. Trapezoidal groove; 22. Fixing ball; 23. Snap-fit groove; 24. Protective cover; 25. First quick-release handle; 26. Second quick-release handle; 27. U-shaped handle; 28. Anti-slip texture; 29. Base plate; 30. Sealing ring. Detailed Implementation
[0033] The present invention will be further described in detail below with reference to the accompanying drawings.
[0034] Example 1:
[0035] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A novel pulse valve for a pulverizer includes a lower housing 1, with a perforated plate 2 bolted to the inner wall of the lower housing 1. A top cover 3 covers the top of the lower housing 1, with an air outlet 4 on the surface of the top cover 3. An inspection door 5 is provided on the surface of the lower housing 1. A cage frame 6 extends through the inner wall of the perforated plate 2. An elastic cloth bag 7 is fitted onto the surface of the cage frame 6, and the opening of the elastic cloth bag 7 is tightened by an elastic rope. A first spring 8 is bolted to the bottom of the cage frame 6, and an elastic ring 9 with a diameter larger than that of the cage frame 6 is bolted to the top of the cage frame 6. An air tank 10 is bolted to the surface of the lower housing 1, with a pulse solenoid valve 11 connected to the top of the air tank 10. The other end of the pulse solenoid valve 11 is connected to a through-wall connector 12, and the through-wall connector 12 is connected to the lower housing. The inner wall of body 1 is fixedly sleeved, and the other end of the through-wall connector 12 is connected to the spray pipe 13. The bottom of the spray pipe 13 is connected to the nozzle 14. After the cage frame 6 is placed in by using the elastic cloth bag 7, the top of the cage frame 6 can be tightened by the elastic ring 9 to make the elastic cloth bag 7 more secure. When disassembling, you only need to stand on the tube sheet 2 and pull the elastic cloth bag 7 upward to complete the one-to-one replacement, thereby facilitating the replacement of the cloth bag, reducing the workload and improving the replacement efficiency. The operator only needs to enter from the top of the top cover 3, loosen the through-wall connector 12, and pull out the spray pipe 13 to take out the spray pipe 13 from the top of the top cover 3, thereby facilitating the installation and removal of the spray pipe 13, reducing the workload, improving the installation and removal efficiency, and making it convenient to use.
[0036] refer to Figure 1 A protective cover 24 is installed on the surface of the lower housing 1, and the protective cover 24 is located on the top of the air bag 10. The air bag 10 assembly is protected by the protective cover 24.
[0037] refer to Figure 1 and Figure 2 The top of the two side top covers 3 and the surface of the lower housing 1 are respectively connected to a first quick-release handle 25 and a second quick-release handle 26. The first quick-release handle 25 acts on the middle top cover 3, and the second quick-release handle 26 acts on the entire top cover 3. By setting the first quick-release handle 25 and the second quick-release handle 26, it is convenient to install and remove the top cover 3.
[0038] refer to Figure 4 The bottom of the first spring 8 is bolted with a base plate 29. By setting the base plate 29, the elastic bag 7 is supported, ensuring the shape of the elastic bag 7 and facilitating dust removal.
[0039] Example 2:
[0040] refer to Figure 1 , Figure 5 and Figure 6The bottom of the air tank 10 is connected to a valve 15, and the bottom of the valve 15 is connected to a connecting seat 16. An air supply pipe 17 is slidably sleeved on the inner wall of the connecting seat 16. A fixing ring 18 is fixedly sleeved on the surface of the connecting seat 16. A slide cylinder 19 is slidably sleeved on the surface of the connecting seat 16. A second spring 20 is provided between the slide cylinder 19 and the fixing ring 18. A trapezoidal groove 21 is provided on the inner wall of the slide cylinder 19. A fixing ball 22 is provided on the inner wall of the connecting seat 16. A snap-fit groove 23 is provided on the surface of the air supply pipe 17, and the snap-fit groove 23 snaps into the fixing ball 22. By moving the slide cylinder 19, the trapezoidal groove 21 is moved, and the fixed ball 22 rolls into the trapezoidal groove 21. The air supply pipe 17 is inserted into the connecting seat 16. The slide cylinder 19 is released, and the trapezoidal groove 21 drives the fixing ball 22 to return to its original position. The fixing ball 22 snaps into the snap-fit groove 23. This method of fixing the pipe facilitates connection, reduces workload, and improves work efficiency.
[0041] refer to Figure 1 and Figure 2 A U-shaped handle 27 is bolted to the top of the top cover 3, which makes it easy to take off and put on the top cover 3.
[0042] refer to Figure 5 The surface of the slide cylinder 19 is provided with anti-slip texture 28. By setting the anti-slip texture 28, the hand slips and the operation is facilitated.
[0043] refer to Figure 5 A sealing ring 30 is provided between the air supply pipe 17 and the connecting seat 16 to prevent air leakage.
[0044] Brief description of operation: Dust-laden airflow enters the lower housing 1 through the air inlet at the bottom of the lower housing 1. Dust flows with the airflow towards the elastic filter bags 7. Air passes through the surface of the elastic filter bags 7 and enters the bag, then is discharged by the fan through the air outlet 4 on the top cover 3. Dust is blocked outside the filter bags and cannot be discharged with the airflow, achieving the effect of air and dust separation. As time goes on, the dust on the outer surface of the filter bags gradually increases, which increases the resistance of the airflow through the filter bags. The pulse jet cleaning system then cleans each filter bag in a certain sequence. Compressed air from the air tank 10 is blown into the inlet pipe 13 through the pulse solenoid valve 11, and then into the filter bag through the nozzle 14, causing the filter bag to expand. A brief reverse airflow is generated in the fiber gaps, flowing in the opposite direction to the filtered air, thereby cleaning the accumulated powder on the outer surface of the filter bag. Using an elastic filter bag 7, after the cage frame 6 is placed inside, the elastic filter bag 7 is tightened by the elastic rope, and the elastic ring 9 at the top of the cage frame 6 is tensioned, pressing the filter bag tightly against the inner wall of the tube sheet 2 for a more secure fixation. The first spring 8 at the bottom of the cage frame 6 allows the filter bag to obtain more tension when it is sprayed. To improve dust removal efficiency, when removing the elastic filter bag 7, the operator only needs to stand on the tube sheet 2 and pull the bag upwards to complete the one-to-one replacement, thus facilitating filter bag replacement. When disassembling the spray pipe 13, the operator only needs to enter from the top of the top cover 3, loosen the through-wall connector 12, and pull out the spray pipe 13 to remove it from the top of the top cover 3, thus facilitating the installation and removal of the spray pipe 13. The moving slide cylinder 19 moves the trapezoidal groove 21, and the movement of the trapezoidal groove 21 causes the fixed ball 22 to roll into the trapezoidal groove 21. The diameter of the fixed ball 22 in the trapezoidal groove 21 is slightly smaller than the width of the trapezoidal groove 21, and the diameter of the fixed ball 22 is greater than the depth of the trapezoidal groove 21. The air supply pipe 17 is inserted into the connector 16, the slide cylinder 19 is released, and the slide cylinder 19 is reset under the action of the second spring 20. The reset of the slide cylinder 19 causes the trapezoidal groove 21 to be reset. The reset of the trapezoidal groove 21 causes the inner wall of the trapezoidal groove 21 to press against the fixed ball 22, causing the fixed ball 22 to be reset. The reset of the fixed ball 22 is engaged with the snap-fit groove 23 to fix it, thereby achieving the purpose of facilitating the connection of the air supply pipe 17.
[0045] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A novel pulse for a crusher, comprising a lower housing (1), characterized in that, A perforated plate (2) is bolted between the inner walls of the lower housing (1). A top cover (3) is provided on the top of the lower housing (1). An air outlet (4) is provided on the surface of the top cover (3) located in the middle. An inspection door (5) is provided on the surface of the lower housing (1). A cage frame (6) is provided through the inner wall of the perforated plate (2). An elastic cloth bag (7) is fitted on the surface of the cage frame (6), and the opening of the elastic cloth bag (7) is tightened by an elastic rope. A first spring (8) is bolted to the bottom of the cage frame (6). An elastic ring (9) is bolted to the top, and the diameter of the elastic ring (9) is larger than the diameter of the cage (6). An air bag (10) is bolted to the surface of the lower housing (1). A pulse solenoid valve (11) is connected to the top of the air bag (10). The other end of the pulse solenoid valve (11) is connected to a wall-penetrating connector (12). The wall-penetrating connector (12) is fixedly sleeved with the inner wall of the lower housing (1). The other end of the wall-penetrating connector (12) is connected to a nozzle (13). The bottom of the nozzle (13) is connected to a nozzle (14).
2. The novel pulse for a pulverizer according to claim 1, characterized in that, The bottom of the air tank (10) is connected to a valve (15), the bottom of the valve (15) is connected to a connecting seat (16), the inner wall of the connecting seat (16) is slidably fitted with an air supply pipe (17), the surface of the connecting seat (16) is fixedly fitted with a fixing ring (18), the surface of the connecting seat (16) is slidably fitted with a slide cylinder (19), a second spring (20) is provided between the slide cylinder (19) and the fixing ring (18), the inner wall of the slide cylinder (19) is provided with a trapezoidal groove (21), the inner wall of the connecting seat (16) is provided with a fixing ball (22), the surface of the air supply pipe (17) is provided with a snap-fit groove (23), and the snap-fit groove (23) snaps with the fixing ball (22).
3. The novel pulse for a pulverizer according to claim 1, characterized in that, The surface of the lower housing (1) is fitted with a protective cover (24), and the protective cover (24) is located on top of the air bag (10).
4. The novel pulse for a pulverizer according to claim 1, characterized in that, The top of the top cover (3) and the surface of the lower housing (1) on both sides are respectively connected to a first quick-release handle (25) and a second quick-release handle (26), and the first quick-release handle (25) acts on the middle top cover (3), and the second quick-release handle (26) acts on all top covers (3).
5. The novel pulse for a pulverizer according to claim 1, characterized in that, The top of the cover (3) is bolted with a U-shaped handle (27).
6. The novel pulse for a pulverizer according to claim 2, characterized in that, The surface of the slide (19) is provided with anti-slip texture (28).
7. The novel pulse for a pulverizer according to claim 1, characterized in that, The bottom of the first spring (8) is bolted with a base plate (29).
8. A novel pulse for a pulverizer according to claim 2, characterized in that, A sealing ring (30) is provided between the air supply pipe (17) and the connecting seat (16).