Dust removal device for bucket elevator

Abstract

This invention provides a dust removal device for a bucket elevator, comprising an elevator housing, a drive wheel, a drive belt, and multiple buckets. A discharge channel is connected to the top side of the elevator housing, and a discharge port is connected to the end of the discharge channel. A dust suction pipe extending along the lifting direction is installed on the side wall of the lifting section of the elevator housing, with its end extending to the top of the discharge channel. The side wall of the dust suction pipe has multiple dust suction holes communicating with the elevator housing and the discharge channel. A U-shaped frame is fixedly installed around the buckets. This device uses a dust suction pipe extending along the lifting direction to promptly absorb dust generated by the grain during the lifting process. Side brushes and longitudinal brushes clean dust adhering to the inner wall of the elevator housing. A shaking plate and air blowing holes remove dust adhering to the surface of the grain as it passes through the discharge channel, improving the quality of subsequent grain processing and achieving a dual dust removal effect for both the elevator and the grain.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and in particular to a dust removal device for a bucket elevator. Background Technology

[0002] Bucket elevators are continuous conveying machines that use a series of buckets uniformly fixed to an endless traction component to vertically lift materials. Bucket elevators use a series of buckets fixed to a traction chain or belt to transport bulk materials upward in a vertical or near-vertical direction. They are divided into three types: ring chain, plate chain, and belt.

[0003] Bucket elevators are commonly used in grain processing and are generally used in conjunction with grain dryers. Because the dryer generates a lot of dust during the grain drying process, the dust carried by the grain will adhere to the inner wall of the elevator or seep into the transmission components during the use of the elevator. Long-term cleaning can easily cause wear and tear. Currently, there is no good method for cleaning the dust inside the elevator. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a dust removal device for a bucket elevator. This device employs a suction pipe extending along the lifting direction, which can promptly absorb dust generated by the grain during the lifting process. It is equipped with side brushes and longitudinal brushes to clean dust adhering to the inner wall of the elevator housing. It is also equipped with a shaking plate and air blowing holes, which can promptly remove dust adhering to the surface of the grain as it passes through the discharge channel, thereby improving the quality of subsequent grain processing and achieving a dual dust removal effect for both the elevator and the grain.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A dust removal device for a bucket elevator includes an elevator housing, a drive wheel, a drive belt, and multiple buckets. A discharge channel is connected to one side of the top of the elevator housing, and a discharge port is connected to the end of the discharge channel. A suction pipe extending along the lifting direction is installed on the side wall of the lifting section of the elevator housing, with its end extending to the top of the discharge channel. Multiple suction holes communicating with the elevator housing and the discharge channel are provided on the side wall of the suction pipe. A U-shaped frame is fixedly installed around each bucket. A pair of side brushes and a longitudinal brush are installed on the side wall of the U-shaped frame. The side brushes are used to clean the front and rear inner walls of the elevator housing, and the longitudinal brushes are used to clean the left inner wall of the elevator housing. Multiple air blowing holes are evenly distributed at the bottom of the discharge channel along the discharge direction. A shaking plate that can vibrate up and down is installed inside the discharge port. Discharge ports are provided on both sides of the discharge port, and opening and closing plates are rotatably installed inside the discharge ports.

[0007] Preferably, the transmission wheel has an air inlet pipe at its center, and both sides of the transmission wheel have annular pipes communicating with the air inlet pipes. The circumferential sidewalls of the annular pipes have multiple air outlets communicating with the edge of the transmission wheel surface. The air outlets correspond to the gap between the transmission belt and the transmission wheel.

[0008] Preferably, the end of the air inlet pipe extends out of the elevator housing, and the extended end of the air inlet pipe is connected to a blower pipe via a rotary joint.

[0009] Preferably, the inner walls of the top front and rear sides of the hoist housing are equipped with scrapers that can shake up and down, and multiple horizontally arranged scraper strips are fixedly installed on the side walls of the scrapers. The scraper strips are used to clean the side brushes.

[0010] Preferably, the inner walls of the front and rear sides of the top of the hoist housing are provided with slides adapted to the scraper. The bottom of the slide is elastically connected to the scraper with a first spring. The top of the scraper is fixedly connected with a stop rod extending out of the top of the hoist housing. The upper ends of the two stop rods are fixed with a stop plate. The top of the hoist housing is fixedly installed with an mounting plate. A rotating shaft is rotatably connected to the mounting plate. A small cam that abuts against the stop plate is installed on the rotating shaft.

[0011] Preferably, a pressure rod extending from the top of the discharge channel is fixedly connected to the top of the shaking plate, a pressure plate is fixedly connected to the top of the pressure rod, a second spring is sleeved on the extension section of the pressure rod, a rotating rod is rotatably connected to the mounting plate, and a large cam that abuts against the pressure plate is fixed on the rotating rod.

[0012] Preferably, a worm gear is fixedly connected to the rotating shaft and the rotating rod, a drive shaft is rotatably connected to the mounting plate, a worm gear meshing with the worm gear is connected in series on the drive shaft, and a motor capable of driving the drive shaft to rotate is mounted on the mounting plate.

[0013] Preferably, the top two sides of the shaking plate are both inclined surfaces, and the inclined surfaces correspond to the discharge port.

[0014] Preferably, a double-headed cylinder is installed on the side wall of the discharge port, and both telescopic ends of the double-headed cylinder are rotatably connected to a slider, which is slidably connected to the corresponding opening and closing plate.

[0015] Preferably, the bottom of the discharge channel is provided with an air distribution pipe that communicates with multiple air blowing holes, and the air distribution pipe and the blower pipe are connected to a blower.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. By installing a suction pipe extending along the lifting direction and multiple suction holes, negative pressure can be generated inside to promptly suck out the dust that floats out during the lifting process. It is equipped with an air inlet pipe, an annular pipe and an air outlet. The air generated by the fan enters the air inlet pipe through the blower pipe and is then blown out through multiple air outlets on the side wall of the annular pipe. This can prevent dust from entering the gap between the transmission belt and the transmission wheel and avoid wear on the transmission components.

[0018] 2. By installing side brushes and longitudinal brushes, the side brushes and longitudinal brushes can be driven to clean the dust adhering to the inner wall of the housing during the lifting process of the hopper. By setting scrapers and scraper strips, starting the motor, the worm gear and worm wheel drive the small cam to rotate, and then the abutment plate and abutment rod drive a pair of scrapers to shake up and down, driving multiple scraper strips to shake up and down, cleaning the side brushes that pass by. When the longitudinal brushes pass through the dust suction hole, the dust adsorbed can be cleaned away under the action of suction.

[0019] 3. By setting multiple air blowing holes and a shaking plate, the grains sliding down from the discharge channel can first have their surface dust blown off through the multiple air blowing holes, and then fall onto the shaking plate. The worm gear and worm wheel drive the large cam to rotate, and then the pressure plate, the second spring and the push rod drive the shaking plate to shake up and down, causing the falling grains to shake off the dust carried in the grains, further improving the dust removal effect and achieving a dual dust removal effect for both the elevator and the grains. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a top view of the U-shaped frame proposed in this invention;

[0022] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0023] Figure 4 This is a front view of the discharge port proposed in this invention;

[0024] Figure 5 This is a schematic diagram of the discharge port in the open state proposed in this invention.

[0025] In the diagram: 1. Elevator housing; 2. Drive wheel; 3. Air inlet pipe; 4. Annular pipe; 5. Air outlet; 6. Hopper; 7. U-shaped frame; 8. Dust suction pipe; 9. Dust suction hole; 10. Drive belt; 11. Discharge channel; 12. Motor; 13. Small cam; 14. Large cam; 15. Drive shaft; 16. Push rod; 17. Pressure plate; 18. Second spring; 19. Pressure rod; 20. Shaking plate; 21. Discharge port; 22. Opening and closing plate; 23. Air blowing hole; 24. Worm gear; 25. Rotating shaft; 26. Slide rail; 27. Scraper; 28. Scraper strip; 29. ​​First spring; 30. Double-headed cylinder; 31. Slider; 32. Side brush row; 33. Longitudinal brush row; 34. Discharge port; 35. Mounting plate. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Reference Figure 1-5 A dust removal device for a bucket elevator includes an elevator housing 1, a drive wheel 2, a drive belt 10, and multiple buckets 6. A discharge channel 11 is connected to one side of the top of the elevator housing 1, and a discharge port 21 is connected to the end of the discharge channel 11. A dust suction pipe 8 extending along the lifting direction is installed on the side wall of the lifting section of the elevator housing 1. The end of the dust suction pipe 8 extends to the top of the discharge channel 11. Multiple dust suction holes 9 are provided on the side wall of the dust suction pipe 8, communicating with the elevator housing 1 and the discharge channel 11. A U-shaped frame 7 is fixedly installed on the periphery of the 6. A pair of side brush rows 32 and a longitudinal brush row 33 are installed on the side wall of the U-shaped frame 7. The side brush rows 32 are used to clean the front and rear inner walls of the elevator housing 1, and the longitudinal brush rows 33 are used to clean the left inner wall of the elevator housing 1. Multiple air blowing holes 23 are evenly distributed at the bottom of the discharge channel 11 along the discharge direction. A shaking plate 20 that can shake up and down is installed in the discharge port 21. A discharge port 34 is provided on both sides of the discharge port 21. An opening and closing plate 22 is rotatably installed in the discharge port 34.

[0029] Furthermore, the transmission wheel 2 has an air inlet pipe 3 at its center, and both sides of the transmission wheel 2 have annular pipes 4 that communicate with the air inlet pipe 3. The circumferential sidewall of the annular pipe 4 has multiple air outlet holes 5 that communicate with the edge of the transmission wheel 2. The air outlet holes 5 correspond to the gap between the transmission belt 10 and the transmission wheel 2. The end of the air inlet pipe 3 extends out of the hoist housing 1. The extended end of the air inlet pipe 3 is connected to a blower pipe through a rotary joint. The air generated by the fan enters the air inlet pipe 3 through the blower pipe and is then blown out through the multiple air outlet holes on the sidewall of the annular pipe 4. This can prevent dust from entering the gap between the transmission belt 10 and the transmission wheel 2 and prevent dust from causing wear to the transmission components.

[0030] Furthermore, scrapers 27 that can vibrate up and down are installed on the inner walls of the top front and rear sides of the hoist housing 1. Multiple horizontally arranged scraper strips 28 are fixedly installed on the side walls of the scraper 27. The scraper strips 28 are used to clean the side brush row 32. The top front and rear inner walls of the elevator housing 1 are provided with slides 26 adapted to the scraper 27. The bottom of the slide 26 is elastically connected to the scraper 27 with a first spring 29. The top of the scraper 27 is fixedly connected with a stop rod 16 extending out of the top of the elevator housing 1. The upper ends of the two stop rods 16 are fixed with a stop plate. The top of the elevator housing 1 is fixedly installed with a mounting plate 35. A rotating shaft 25 is rotatably connected to the mounting plate 35. A small cam 13 that abuts against the stop plate is installed on the rotating shaft 25. The starting motor 12 drives the transmission shaft 15 to rotate, which drives the small cam 13 to rotate through the worm and worm wheel 24. Then, through the stop plate and the stop rod 16, the pair of scrapers 27 shake up and down, which in turn drives multiple scraper strips 28 to shake up and down. When the side brush row 32 passes the scraper 27, the scraper strips 28 can scrape off the dust on the side brush row 32.

[0031] Furthermore, a pressure rod 19 extending from the top of the discharge channel 11 is fixedly connected to the top of the shaking plate 20. A pressure plate 17 is fixedly connected to the top of the pressure rod 19. A second spring 18 is sleeved on the extension of the pressure rod 19. A rotating rod is rotatably connected to the mounting plate 35. A large cam 14 that abuts against the pressure plate 17 is fixed on the rotating rod. The large cam 14 is driven to rotate by the worm gear and worm wheel 24. Then, the pressure plate 17, the second spring 18 and the pressure rod 19 drive the shaking plate 20 to shake up and down, causing the falling grains to shake off the dust carried in the grains, thereby further improving the dust removal effect.

[0032] Furthermore, a worm gear 24 is fixedly connected to the rotating shaft 25 and the rotating rod, and a drive shaft 15 is rotatably connected to the mounting plate 35. A worm gear that meshes with the worm gear 24 is connected in series on the drive shaft 15. A motor 12 that can drive the drive shaft 15 to rotate is installed on the mounting plate 35, which can simultaneously perform the shaking process of the side brush 32 and the grain.

[0033] Furthermore, the top two sides of the shaking plate 20 are both inclined surfaces, corresponding to the discharge port 34. A double-headed cylinder 30 is installed on the side wall of the discharge port 21. The two telescopic ends of the double-headed cylinder 30 are rotatably connected to the sliders 31. The sliders 31 are slidably connected to the corresponding opening and closing plates 22. When the double-headed cylinder 30 is started intermittently, the sliders 31 can drive the opening and closing plates 22 on both sides to open, and the discharge ports 34 on both sides can be opened, so that the grain can be discharged along the inclined surface.

[0034] Furthermore, the bottom of the discharge channel 11 is provided with an air distribution pipe that communicates with multiple air blowing holes 23. The air distribution pipe and the blower pipe are connected to a fan. The grains that slide down from the discharge channel 11 can first have their surface dust blown away through the multiple air blowing holes 23.

[0035] The suction pipe 8 can create negative pressure inside the elevator housing 1, and the dust that floats out during the lifting and discharge processes can be sucked out in time through multiple suction holes 9. At the same time, the air generated by the blower enters the air inlet pipe 3 through the blower pipe, and is then blown out through multiple air outlets on the side wall of the annular pipe 4. This can prevent dust from entering the gap between the transmission belt 10 and the transmission wheel 2, and avoid wear on the transmission components.

[0036] During the lifting process of hopper 6, U-shaped frame 7 is lifted accordingly, driving side brush row 32 and longitudinal brush row 33 to clean the dust adhering to the inner wall of the housing. The start motor 12 drives the transmission shaft 15 to rotate, which drives the small cam 13 to rotate through worm gear and worm wheel 24. Then, through the abutment plate and abutment rod 16, a pair of scraper blades 27 are driven to vibrate up and down, which in turn drives multiple scraper strips 28 to vibrate up and down. When the side brush row 32 passes the scraper blade 27, the scraper strips 28 can scrape off the dust on the side brush row 32. When the longitudinal brush row 33 passes the dust suction hole 9, it can clean off the adsorbed dust under the action of suction.

[0037] Grains sliding down from the discharge channel 11 can first have their surface dust blown away through multiple air holes 23, and then fall onto the shaking plate 20. The worm gear and worm wheel 24 drive the large cam 14 to rotate, and then the pressure plate 17, the second spring 18 and the push rod 19 drive the shaking plate 20 to shake up and down, causing the falling grains to shake off the dust carried in the grains, further improving the dust removal effect and achieving a dual dust removal effect for both the elevator and the grains.

[0038] Intermittently starting the dual-head cylinder 30 will cause the sliding block 31 to drive the opening and closing plates 22 on both sides to open, and the discharge ports 34 on both sides to discharge grain intermittently.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust removal device for a bucket elevator, comprising an elevator housing (1), a drive wheel (2), a drive belt (10) and a plurality of buckets (6), characterized in that, The top side of the elevator housing (1) is connected to a discharge channel (11), and the end of the discharge channel (11) is connected to a discharge port (21). A dust suction pipe (8) extending along the lifting direction is installed on the side wall of the lifting section of the elevator housing (1). The end of the dust suction pipe (8) extends to the top of the discharge channel (11). The side wall of the dust suction pipe (8) is provided with a plurality of dust suction holes (9) communicating with the elevator housing (1) and the discharge channel (11). A U-shaped frame (7) is fixedly installed on the periphery of the hopper (6). A pair of side brush rows (32) and a longitudinal brush row (33) are installed on the side wall. The side brush rows (32) are used to clean the front and rear inner walls of the elevator housing (1). The longitudinal brush rows (33) are used to clean the left inner wall of the elevator housing (1). Multiple air blowing holes (23) are evenly distributed at the bottom of the discharge channel (11) along the discharge direction. A shaking plate (20) that can shake up and down is installed in the discharge port (21). A discharge port (34) is provided on both sides of the discharge port (21). An opening and closing plate (22) is rotatably installed in the discharge port (34). The transmission wheel (2) has an air inlet pipe (3) at its center. Both sides of the transmission wheel (2) are provided with annular pipes (4) that communicate with the air inlet pipes (3). The circumferential sidewalls of the annular pipes (4) are provided with multiple air outlet holes (5) that communicate with the edge of the transmission wheel (2). The air outlet holes (5) correspond to the gap between the transmission belt (10) and the transmission wheel (2). The top front and rear inner walls of the hoist housing (1) are equipped with scrapers (27) that can shake up and down. Multiple horizontally arranged scraper strips (28) are fixedly installed on the side walls of the scrapers (27). The scraper strips (28) are used to clean the side brushes (32). The top front and rear inner walls of the hoist housing (1) are provided with slides (26) adapted to the scraper (27). The bottom of the slide (26) is elastically connected to the scraper (27) with a first spring (29). The top of the scraper (27) is fixedly connected with a stop rod (16) extending out of the top of the hoist housing (1). The upper ends of the two stop rods (16) are fixed with a stop plate. The top of the hoist housing (1) is fixedly installed with an installation plate (35). A rotating shaft (25) is rotatably connected to the installation plate (35). A small cam (13) that abuts against the stop plate is installed on the rotating shaft (25). The top of the shaking plate (20) is fixedly connected to a pressure rod (19) extending out of the top of the discharge channel (11). The top of the pressure rod (19) is fixedly connected to a pressure plate (17). A second spring (18) is sleeved on the extension section of the pressure rod (19). A rotating rod is rotatably connected to the mounting plate (35). A large cam (14) that abuts against the pressure plate (17) is fixed on the rotating rod. The top two sides of the shaking plate (20) are both inclined surfaces, and the inclined surfaces correspond to the discharge port (34).

2. A dust extraction device for an elevator according to claim 1, characterized in that The end of the air inlet pipe (3) extends out of the hoist housing (1), and the extended end of the air inlet pipe (3) is connected to the blower pipe through a rotary joint.

3. A dust removal device for a bucket elevator according to claim 1, characterized in that A worm gear (24) is fixedly connected to the rotating shaft (25) and the rotating rod. A transmission shaft (15) is rotatably connected to the mounting plate (35). A worm gear that meshes with the worm gear (24) is connected in series on the transmission shaft (15). A motor (12) that can drive the transmission shaft (15) to rotate is installed on the mounting plate (35).

4. A dust removal device for a bucket elevator according to claim 1, characterized in that A double-headed cylinder (30) is installed on the side wall of the discharge port (21). Both telescopic ends of the double-headed cylinder (30) are rotatably connected to a slider (31). The slider (31) is slidably connected to the corresponding opening and closing plate (22).

5. A dust removal device for a bucket elevator according to claim 1, characterized in that, The bottom of the discharge channel (11) is provided with an air distribution pipe that communicates with multiple air blowing holes (23), and the air distribution pipe and the blower pipe are connected to a blower.

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