A continuous dust removal and purification device for grain processing
The design of flexible snap-fit filter bags and double-support filter plates solves the problems of easy wear and clogging of filter bags in traditional devices, enabling rapid maintenance and efficient filtration, and ensuring stable production in the grain processing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SHENGTE GRAIN IND CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-16
AI Technical Summary
The filter bags of traditional continuous dust removal and purification devices used in grain processing are easily worn by hard particles, and fine dust easily adheres to them, resulting in high maintenance costs and low filtration efficiency. They are also prone to clogging, affecting the normal operation of the equipment.
The filter bag adopts a flexible snap-fit structure and a double-support filter plate design, combined with a spring-loaded telescopic block and fixing groove, to achieve quick insertion and removal of filter bags and tool-free disassembly and assembly of filter plates, reducing the risk of wear and clogging by hard particles.
It enables quick replacement of filter bags and convenient cleaning of filter plates, reducing maintenance frequency and improving the filtration efficiency and production continuity of the equipment in high dust environments.
Smart Images
Figure CN224358154U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a continuous dust removal and purification device for grain processing. Background Technology
[0002] In the grain processing industry (such as flour production, grain milling, feed processing, etc.), a large amount of dust (such as flour, bran, rice husk fragments, etc.) is generated during the production process. This dust not only pollutes the workshop environment and endangers the health of workers, but may also cause the risk of dust explosion due to excessive concentration. At the same time, dust adhering to equipment will affect the processing precision and product quality.
[0003] Traditional continuous dust removal and purification devices for grain processing filter dust by installing filter bags and cages on the tube sheet inside the dust collector, and then spraying dust with pulse jets. Compressed air blows onto the surface of the filter bags to remove dust, and the accumulated dust can be discharged from the bottom dust outlet. A fan provides airflow power, thereby achieving basic collection and purification of dust during grain processing.
[0004] Traditional filter bags are easily worn down by hard particles such as rice husks and dust, while fine dust such as flour easily adheres to the surface of the filter bags, requiring frequent disassembly and cleaning, resulting in high downtime maintenance costs. The single filtration method is prone to clogging during the filtration process, thereby reducing the filtration effect and affecting the normal operation of the equipment. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a continuous dust removal and purification device for grain processing, which aims to improve the problems in the prior art, such as filter bags being easily worn by hard particles, fine dust adhering leading to high maintenance costs, and single filtration methods being prone to clogging and having low filtration efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A continuous dust removal and purification device for grain processing includes a dust collection box. Multiple evenly distributed support legs are fixedly connected to the bottom of the dust collection box. A box cover is fixedly connected to the top of the dust collection box. An air inlet pipe is fixedly connected to the right side of the dust collection box. A dust outlet is opened at the bottom of the dust collection box. A baffle is fixedly connected to the right side inside the dust collection box. A tube sheet is fixedly connected to the top of the inner side of the dust collection box. Multiple evenly distributed mounting holes are opened at the top of the tube sheet. Multiple evenly distributed fixing blocks are fixedly connected to the top of the tube sheet. An expansion groove is opened inside each fixing block. A fixing groove is opened at the top of each fixing block. An expansion block is slidably connected inside each fixing block. Springs are fixedly connected to the front and rear of the right side of each expansion block. A filter bag is installed on the top of the tube sheet. A bag cage is slidably connected to the inner circumference of the filter bag. Fixing rods are fixedly connected to both the front and rear of each bag cage.
[0008] As a further description of the above technical solution:
[0009] A filter plate is slidably connected to the front of the dust collector, and a handle is fixedly connected to the front of the filter plate. A second fixing groove is opened on the rear inner side of the dust collector. A first support bar is fixedly connected to the left side inside the dust collector. A second support bar is fixedly connected to the bottom left side of the baffle. An installation port is opened at the front of the dust collector. Rotary locking blocks are rotatably connected to both the left and right sides of the front of the dust collector.
[0010] As a further description of the above technical solution:
[0011] A support plate is fixedly connected to the top of the support leg, an exhaust fan is fixedly connected to the top of the support plate, an exhaust pipe is fixedly connected to the top of the exhaust fan, and a connecting pipe is fixedly connected to the right side of the exhaust fan.
[0012] As a further description of the above technical solution:
[0013] A second support plate is fixedly connected to one side of the supporting leg. A motor is fixedly connected to the top of the second support plate. A connecting rod is fixedly connected to the drive end of the motor. Multiple evenly distributed scrapers are fixedly connected to the outer right side of the connecting rod.
[0014] As a further description of the above technical solution:
[0015] An air tank is fixedly connected to the top right side of the dust collector, and a blow pipe is fixedly connected to the top of the air tank.
[0016] As a further description of the above technical solution:
[0017] The fixed rod is slidably connected in the fixed groove, the telescopic block is slidably connected in the telescopic groove, and the other end of the spring is fixedly connected in the telescopic groove.
[0018] As a further description of the above technical solution:
[0019] The filter plate is slidably connected in the fixed groove 2, the filter plate is slidably connected in the installation port, the filter plate abuts against the top of the support bar 1, and the filter plate abuts against the top of the support bar 2.
[0020] As a further description of the above technical solution:
[0021] The other end of the connecting pipe is fixedly connected to the left side of the dust collection box.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the telescopic groove in the fixed block at the top of the tube sheet is linked to the telescopic block with the spring, and the fixed rods at the front and rear of the bag cage are slidably connected to the fixed groove to form an elastic snap-fit filter bag installation structure. The filter bag can be quickly inserted, removed and locked without the aid of tools, saving the time used by the staff for maintenance and effectively solving the problem of frequent machine shutdowns for replacement after the filter bag is worn by hard particles such as rice husks.
[0024] 2. In this utility model, the filter plate is supported by the double support of the filter plate and support bar one and support bar two, and the fixed groove two limits the installation of the filter plate. The rotating locking blocks on both sides lock the filter plate. The handle can quickly pull the filter plate without tools, which is convenient for cleaning up large particles such as rice husks and broken wheat straw. The quick disassembly and assembly design of the filter plate makes it convenient for staff to maintain. It significantly improves the adaptability of the equipment in continuous grain processing and solves the problems of easy clogging and maintenance affecting production in traditional single filtration methods. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a continuous dust removal and purification device for grain processing proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the exhaust fan of a continuous dust removal and purification device for grain processing proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the filter cage of a continuous dust removal and purification device for grain processing proposed in this utility model.
[0028] Figure 4 This is a schematic diagram of the structure of the fixing block of a continuous dust removal and purification device for grain processing proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the filter plate of a continuous dust removal and purification device for grain processing proposed in this utility model.
[0030] Legend:
[0031] 1. Dust collector box; 2. Support leg; 3. Box cover; 4. Air inlet pipe; 5. Dust outlet; 6. Baffle; 7. Tube plate; 8. Mounting hole; 9. Fixing block; 10. Telescopic groove; 11. Fixing groove one; 12. Spring; 13. Telescopic block; 14. Filter bag; 15. Bag cage; 16. Fixing rod; 17. Filter plate; 18. Handle; 19. Fixing groove two; 20. Support bar one; 21. Support bar two; 22. Mounting port; 23. Rotary locking block; 24. Support plate one; 25. Exhaust fan; 26. Connecting pipe; 27. Air outlet pipe; 28. Support plate two; 29. Motor; 30. Connecting rod; 31. Scraper; 32. Air tank; 33. Pulse jet pipe. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-5 This utility model provides an embodiment of a continuous dust removal and purification device for grain processing, comprising a dust collection box 1. Multiple evenly distributed support legs 2 are fixedly connected to the bottom of the dust collection box 1. The dust collection box 1 is the main structure of the device, and the support legs 2 provide fixed support. A box cover 3 is fixedly connected to the top of the dust collection box 1, facilitating periodic maintenance of internal components. An air inlet pipe 4 is fixedly connected to the right side of the dust collection box 1, used to introduce dust-laden airflow. A dust outlet 5 is opened at the bottom of the dust collection box 1, used to discharge collected dust. A baffle 6 is fixedly connected to the right side inside the dust collection box 1, the baffle 6 changing the direction of the dust-laden airflow, causing large dust particles to directly settle to the dust outlet 5 under inertia. A perforated plate 7 is fixedly connected to the top of the inner side of the dust collection box 1. Multiple evenly distributed mounting holes 8 are opened on the top of the perforated plate 7, dividing the dust collection box 1 into an upper clean air chamber and a lower dust chamber. The mounting holes 8 are used to fix filter bags 14. Multiple evenly distributed mounting holes 8 are fixedly connected to the top of the perforated plate 7. The fixing block 9 is used to quickly install and remove the filter bag 14. The fixing block 9 has a telescopic groove 10 inside and a fixing groove 11 on the top. The telescopic block 13 is slidably connected inside the fixing block 9 and is slidably connected in the telescopic groove 10. The telescopic groove 10 provides a sliding track for the telescopic block 13. Springs 12 are fixedly connected to the front and rear of the right side of the telescopic block 13. The other end of the spring 12 is fixedly connected in the telescopic groove 10. The cooperation between the telescopic block 13 and the telescopic groove 10 makes it easy to push the telescopic block 13 to compress the spring 12 when the fixing rod 16 is inserted, so as to achieve quick locking. The filter bag 14 is installed on the top of the tube sheet 7. The filter bag 14 achieves the effect of filtering dust. The filter bag 14 is slidably connected to the inner circumference of the filter bag 14. The bag cage 15 ensures that the filter bag 14 is fully expanded during blowing. The front and rear of the bag cage 15 are fixedly connected to the fixing rods 16. The fixing rods 16 are slidably connected in the fixing groove 11. The fixing groove 11 is used to cooperate with the fixing rods 16 to achieve the limiting function.
[0034] Reference Figure 1 and Figure 3In one embodiment of this utility model: a filter plate 17 is slidably connected to the front of the dust collector 1. The filter plate 17 serves as a preliminary filter for larger impurities. The filter plate 17 is slidably connected in the fixing groove 29 and the mounting port 22. The fixing groove 29 and the mounting port 22 cooperate to realize the installation and guiding functions of the filter plate 17. The filter plate 17 abuts against the top of the support bar 1 20 and the top of the support bar 21. A handle 18 is fixedly connected to the front of the filter plate 17. The fixing groove 29 is opened in the rear of the inner side of the dust collector 1. The support bar 1 20 is fixedly connected to the left side of the inside of the dust collector 1. The support bar 21 is fixedly connected to the bottom left side of the baffle 6. The support bar 1 20 and the support bar 21 realize the fixed support function of the filter plate 17. The mounting port 22 is opened in the front of the dust collector 1. Rotary locking blocks 23 are rotatably connected to both the left and right sides of the front of the dust collector 1. The rotating locking blocks 23 ensure that the dust collector 1 is in a relatively sealed environment when the equipment is running.
[0035] Reference Figure 1 and Figure 3 In one embodiment of this utility model: a support plate 24 is fixedly connected to the top of the support leg 2, providing an installation support platform for its top component. An exhaust fan 25 is fixedly connected to the top of the support plate 24, which discharges the filtered gas from the dust collection box 1. An exhaust pipe 27 is fixedly connected to the top of the exhaust fan 25, and a connecting pipe 26 is fixedly connected to the right side of the exhaust fan 25. The filtered gas first passes through the connecting pipe 26 and then through the exhaust pipe 27 before being discharged. The other end of the connecting pipe 26 is fixedly connected to the left side of the dust collection box 1. A support plate 2 is fixedly connected to the opposite side of the support leg 2. 28. Support plate 28 provides an installation and fixing platform for the components on its top. A motor 29 is fixedly connected to the top of support plate 28. A connecting rod 30 is fixedly connected to the drive end of motor 29. Multiple evenly distributed scrapers 31 are fixedly connected to the outer right side of connecting rod 30. Motor 29 provides power for the rotation of scraper 31. When scraper 31 rotates, it can effectively scrape off the deposited dust. An air tank 32 is fixedly connected to the top right side of dust collector 1. Air tank 32 is used to store compressed air. A blowpipe 33 is fixedly connected to the top of air tank 32. Blowpipe 33 sprays the compressed air out at high speed to achieve efficient dust removal.
[0036] Working principle: When it is necessary to install or remove the filter bag 14, firstly, the filter bag 14 is slidably connected to the fixing groove 11 of the fixing block 9 through the fixing rods 16 at the front and rear of the bag cage 15. When inserted, push the telescopic block 13 to compress the spring 12. The elastic force of the spring 12 makes the telescopic block 13 lock the fixing rod 16, forming a quick fixing effect. When disassembling, press the telescopic block 13 to quickly pull it out. The filter bag 14 can be replaced without tools, which solves the problem of frequent downtime maintenance caused by wear from hard particles in traditional devices. When it is necessary to clean up the intercepted rice husks and broken grains... When removing large particles such as wheat straw, the operator only needs to rotate and unlock the rotating locking blocks 23 on both sides, and then pull out the filter plate 17 through the front handle 18. The sliding cooperation between the filter plate 17 and the installation port 22 ensures smooth pulling and prevents dust from overflowing. The filter plate 17 significantly reduces the content of hard particles entering the filter bag 14. Combined with the elastic quick-release design of the filter bag 14, it forms a dual guarantee of pre-filtration to prevent clogging and quick maintenance to ensure production. This allows the device to maintain stable filtration efficiency and extremely low maintenance intervention frequency even in the continuous production environment of grain processing with high dust and high impurities.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A continuous dust removal and purification device for grain processing, comprising a dust collection box (1), characterized in that: The dust collector (1) has multiple evenly distributed support legs (2) fixedly connected to its bottom. A cover (3) is fixedly connected to the top of the dust collector (1). An air inlet pipe (4) is fixedly connected to the right side of the dust collector (1). A dust outlet (5) is opened at the bottom of the dust collector (1). A baffle (6) is fixedly connected to the right side inside the dust collector (1). A tube sheet (7) is fixedly connected to the top of the inner side of the dust collector (1). Multiple evenly distributed mounting holes (8) are opened on the top of the tube sheet (7). The top of the tube sheet (7) is fixed... The device is connected to a plurality of evenly distributed fixed blocks (9). The fixed blocks (9) have a telescopic groove (10) inside and a fixed groove (11) on the top of the fixed blocks (9). The fixed blocks (9) are slidably connected to a telescopic block (13). The telescopic block (13) is fixedly connected to the front and back of the right side of the telescopic block (13). The top of the tube sheet (7) is fitted with a filter bag (14). The filter bag (14) is slidably connected to a bag cage (15) on its inner circumference. The bag cage (15) is fixedly connected to both the front and back of the front and back of the front and back of the front and back sides ...
2. The continuous dust removal and purification device for grain processing according to claim 1, characterized in that: The dust collector (1) is slidably connected to a filter plate (17) at the front, and a handle (18) is fixedly connected to the front of the filter plate (17). A fixing groove (19) is provided on the rear inner side of the dust collector (1). A support bar (20) is fixedly connected to the left side inside the dust collector (1). A support bar (21) is fixedly connected to the bottom left side of the baffle (6). An installation port (22) is provided at the front of the dust collector (1). Rotary locking blocks (23) are rotatably connected to both the left and right sides of the front of the dust collector (1).
3. The continuous dust removal and purification device for grain processing according to claim 1, characterized in that: The top of the support leg (2) is fixedly connected to a support plate (24), the top of the support plate (24) is fixedly connected to an exhaust fan (25), the top of the exhaust fan (25) is fixedly connected to an air outlet pipe (27), and the right side of the exhaust fan (25) is fixedly connected to a connecting pipe (26).
4. The continuous dust removal and purification device for grain processing according to claim 1, characterized in that: The support leg (2) is fixedly connected to a support plate (28) on one side facing each other. A motor (29) is fixedly connected to the top of the support plate (28). A connecting rod (30) is fixedly connected to the drive end of the motor (29). Multiple evenly distributed scrapers (31) are fixedly connected to the outer right side of the connecting rod (30).
5. The continuous dust removal and purification device for grain processing according to claim 1, characterized in that: An air tank (32) is fixedly connected to the top right side of the dust collector (1), and a blow pipe (33) is fixedly connected to the top of the air tank (32).
6. The continuous dust removal and purification device for grain processing according to claim 1, characterized in that: The fixed rod (16) is slidably connected in the fixed groove (11), the telescopic block (13) is slidably connected in the telescopic groove (10), and the other end of the spring (12) is fixedly connected in the telescopic groove (10).
7. The continuous dust removal and purification device for grain processing according to claim 2, characterized in that: The filter plate (17) is slidably connected in the fixed groove (19), the filter plate (17) is slidably connected in the mounting port (22), the filter plate (17) abuts against the top of the support bar (20), and the filter plate (17) abuts against the top of the support bar (21).
8. A continuous dust removal and purification device for grain processing according to claim 3, characterized in that: The other end of the connecting pipe (26) is fixedly connected to the left side of the dust collector (1).