A remote quantitative pneumatic conveying device for powder and granular materials

Abstract

This utility model belongs to the field of powder and granular material conveying technology, specifically a remote quantitative pneumatic conveying device for powder and granular materials, including a fixed frame; a hopper is fixedly connected to the middle of the fixed frame; a lifting device is installed on the top of the fixed frame; multiple bag-breaking knives are fixedly connected to the inner side wall of the hopper; a conveying pipe is installed at the bottom of the hopper; multiple sets of through grooves are opened on the side wall of the hopper; a dust removal hood is fixedly connected to the side wall of the hopper; a filter plate is fixedly connected to the middle of the dust removal hood; an exhaust pipe is connected to the side wall of the dust removal hood; an air pump is fixedly connected to the end of the exhaust pipe; an exhaust pipe is fixedly connected to the middle of the air pump; and a material cleaning component is installed in the middle of the exhaust pipe. The powerful concentrated airflow of the above structure can thoroughly remove the material adhering to the surface of the bag-breaking knife, so that the bag-breaking knife contacts the material bag in a sharp state each time it breaks a bag, reducing the problem of incomplete bag breaking or entanglement caused by material adhering to the bag-breaking knife.

Description

Technical Field

[0001] This utility model belongs to the field of powder and granular material conveying technology, specifically a remote quantitative pneumatic conveying device for powder and granular materials. Background Technology

[0002] Powdered materials refer to a material aggregate composed of tiny solid particles. Powdered materials are a special material form that lies between continuous solids and fluids.

[0003] In industrial production, the feeding point and the consumption point of powder and granular materials are often far apart. Traditional mechanical conveying is greatly limited by distance and terrain. Powder and granular materials are prone to dust, agglomeration, and unstable flowability. Remote quantitative pneumatic conveying equipment crosses complex spaces through pipelines and integrates components such as flow control and metering instruments to adjust the conveying volume in real time.

[0004] Powdered materials typically have small particle size and large specific surface area. The static electricity generated by the powder particles during flow and collision will actively adhere to the surface of the blade. The adsorbed powder particles will gradually form a thick powder layer on the surface of the blade, which will dull the blade and cause poor material discharge, thus aggravating the wear of the blade surface.

[0005] Therefore, this utility model provides a remote quantitative pneumatic conveying device for powder and granular materials. Utility Model Content

[0006] The purpose of this invention is to address the problem that the breaker blade easily absorbs powder during use, causing blade wear, making it difficult to cut through the material bag, and resulting in poor material discharge. This invention proposes a remote quantitative pneumatic conveying device for powder and granular materials to solve the problems mentioned in the background art.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A remote quantitative pneumatic conveying device for powder and granular materials, comprising a fixed frame; a hopper fixedly connected to the middle of the fixed frame; a lifting device installed on the top of the fixed frame; multiple packing cutters fixedly connected to the inner side wall of the hopper; a conveying pipe installed at the bottom of the hopper; multiple sets of through slots opened on the side wall of the hopper; a dust collector fixedly connected to the side wall of the hopper; a filter plate fixedly connected to the middle of the dust collector; an exhaust pipe connected to the side wall of the dust collector; an air pump fixedly connected to the end of the exhaust pipe; an exhaust pipe fixedly connected to the middle of the air pump; a cleaning assembly installed in the middle of the exhaust pipe; the cleaning assembly includes multiple connecting pipes; the multiple connecting pipes are connected to... The exhaust pipe is connected to a rectangular tube at its end; the rectangular tube is fixed to the middle of the corresponding bag-breaking knife; two sets of jet nozzles are fixed to the middle of the rectangular tube; the two sets of jet nozzles are arranged opposite each other; multiple baffles are rotatably connected to the ends of the jet nozzles; the powerful concentrated airflow of the above structure can thoroughly remove the material adhering to the surface of the bag-breaking knife, so that the bag-breaking knife contacts the material bag in a sharp state each time it breaks the bag, reducing the problem of incomplete bag breaking or entanglement caused by material adhering to the bag-breaking knife, effectively peeling the material off the surface of the bag-breaking knife, and the baffles can isolate the dust from the contact between the dust and the internal channel of the jet nozzle during jetting, reducing dust backflow and nozzle blockage, and maintaining the reliability of long-term operation.

[0008] Preferably, a driver is fixedly connected to the side wall of the dust collector hood; the output end of the driver penetrates through the side wall of the dust collector hood; a rotating rod is fixedly connected to the output end of the driver; the end of the rotating rod is rotatably connected to the inner side wall of the dust collector hood; two pull ropes are fixedly connected to the middle of the rotating rod; a scraper is slidably connected to the inner side wall of the dust collector hood; the scraper is in contact with the filter plate; the ends of the two pull ropes are fixedly connected to the top of the scraper; two springs are fixedly connected to the top of the scraper; the ends of the springs are fixedly connected to the top of the dust collector hood; a collection assembly is installed at the bottom of the dust collector hood; the above structure can effectively and quickly remove sticky dust on the filter plate, reduce the clogging of the filter plate during use, thus reducing the decrease in dust removal efficiency, and effectively reduce the need for regular disassembly and manual cleaning of the filter plate.

[0009] Preferably, the collection component includes a long collection box; the bottom of the dust collector is provided with an installation groove; the long collection box is installed in the middle of the installation groove; rubber pads are fixed to both sides of the top of the long collection box; with the above structure, the filtered dust particles can be cleaned simply by pulling out the sealed long collection box, reducing the accumulation of dust that is lifted up by the airflow and re-attached to the filter plate, which is convenient for maintenance.

[0010] Preferably, multiple brush plates are fixed to the top of the hopper; the multiple brush plates are arranged in an alternating manner; the densely structured and staggered brush plates form a multi-layered and elastic isolation layer, whose complex and tortuous path can prevent dust from passing through and reduce dust from escaping and polluting the environment.

[0011] Preferably, a wear-resistant ceramic layer is fixedly connected to the middle of the conveying pipe; the wear-resistant ceramic layer is disposed on the inner side wall of the conveying pipe; the above structure can reduce the damage caused by long-term conveying of highly abrasive materials, and reduce the frequency and cost of maintenance.

[0012] Preferably, a vibration sensor is installed in the middle of the conveying pipe; the vibration sensor is installed on the outer wall of the conveying pipe; with the above structure, when a blockage occurs, the vibration sensor downstream of the blockage point will immediately disappear or drop to an extremely low level, which can quickly locate the area where the blockage occurs, and promptly detect and resolve it.

[0013] The beneficial effects of this utility model are as follows: 1. The remote quantitative pneumatic conveying device for powder and granular materials described in this utility model can thoroughly remove the material adhering to the surface of the packing knife through the powerful concentrated airflow of the above-mentioned structure. This ensures that the packing knife contacts the material bag in a sharp state each time it is broken, reducing the problem of incomplete packing or entanglement caused by material adhering to the packing knife. It effectively peels the material off the surface of the packing knife, and the baffle can isolate the dust from the internal channel of the jet head during jetting, reducing dust backflow and nozzle blockage, and maintaining the reliability of long-term operation.

[0014] 2. The remote quantitative pneumatic conveying device for powder and granular materials described in this utility model can effectively and quickly remove sticky dust from the filter plate through the above structure, reduce the clogging of the filter plate during use, which leads to a decrease in dust removal efficiency, and effectively reduce the operation of periodic disassembly and manual cleaning of the filter plate. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall workflow of this utility model; Figure 2 This is a perspective view of the broken part of this utility model; Figure 3 This is a schematic diagram of the structure of the hopper in this utility model; Figure 4 This is a schematic diagram of the material cleaning component in this utility model; Figure 5 This is a schematic diagram of the wear-resistant ceramic layer in this utility model; Figure 6 This is a schematic diagram of the scraper structure in this utility model; Figure 7 This is an exploded view of the collecting components in this utility model.

[0017] In the diagram: 1. Fixed frame; 11. Hoist; 12. Lifting device; 13. Packaging cutter; 14. Through channel; 15. Conveying pipe; 16. Dust hood; 17. Exhaust pipe; 18. Air pump; 19. Exhaust pipe; 10. Filter plate; 2. Cleaning assembly; 21. Connecting pipe; 22. Rectangular tube; 23. Air jet head; 24. Baffle; 3. Driver; 31. Rotating rod; 32. Pull rope; 33. Scraper; 34. Spring; 4. Collection assembly; 41. Collection box; 42. Rubber pad; 43. Mounting slot; 5. Brush plate; 6. Wear-resistant ceramic layer; 7. Vibration sensor. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] like Figures 1 to 7As shown in the embodiment of this utility model, a remote quantitative pneumatic conveying device for powder and granular materials includes a fixed frame 1; a hopper 11 is fixedly connected to the middle of the fixed frame 1; a lifting device 12 is installed on the top of the fixed frame 1; multiple packing cutters 13 are fixedly connected to the inner side wall of the hopper 11; a conveying pipe 15 is installed at the bottom of the hopper 11; multiple sets of through grooves 14 are opened on the side wall of the hopper 11; a dust collector hood 16 is fixedly connected to the side wall of the hopper 11; a filter plate 10 is fixedly connected to the middle of the dust collector hood 16; an exhaust pipe 17 is connected to the side wall of the dust collector hood 16; an air pump 18 is fixedly connected to the end of the exhaust pipe 17; an exhaust pipe 19 is fixedly connected to the middle of the air pump 18; a cleaning assembly 2 is installed in the middle of the exhaust pipe 19; the cleaning assembly 2 includes multiple connecting pipes 21; multiple Connecting pipe 21 is connected to the end of exhaust pipe 19; a rectangular pipe 22 is connected to the end of connecting pipe 21; the rectangular pipe 22 is fixed to the middle of the corresponding bag-breaking knife 13; two sets of jet nozzles 23 are fixed to the middle of the rectangular pipe 22; the two sets of jet nozzles 23 are arranged opposite each other; multiple baffles 24 are rotatably connected to the end of the jet nozzles 23; during operation, the entire bag of material is fixed to the end of the chain, the sealing door of the hopper 11 is opened, the material is lifted by the lifting device 12 and enters the hopper 11, at which time the chain passes through the groove at the top of the hopper 11. After the sealing door is closed, the air pump 18 is turned on, and the airflow inside the hopper 11 is drawn in through multiple channels 14, the fine particles are filtered through the filter plate 10, and then the dry matter is discharged through the exhaust pipe 17. The clean airflow is directed towards the middle of the exhaust duct 19. Inside the exhaust duct 19, the airflow flows into multiple connecting pipes 21. At this time, the air pressure impacts multiple baffles 24 at the ends of the jet nozzles 23. These baffles 24 are pushed open by the airflow and rotate at the ends of the jet nozzles 23. The airflow is discharged through multiple sets of jet nozzles 23 onto the surface of the bag-breaking knife 13. A limit is provided between the baffles 24 and the jet nozzles 23. When the jet nozzles 23 stop blowing, the baffles 24 automatically reset under their own weight. The lifting device 12 controls the material to move downwards. When the bag contacts the ends of the multiple bag-breaking knives 13, the ends of the bag-breaking knives 13 slit the bottom of the bag, and the powder falls from the bag opening. As the bag continues to move downwards, the bag opening gradually widens, allowing the material to quickly enter the hopper. At the bottom of 11, a metering device is installed. The material is then conveyed through the conveying pipe 15. When the material passes over and adheres to the surface of the pack-breaking knife 13, the airflow discharged from multiple jet nozzles 23 blows the material off. The strong concentrated airflow of the above structure can thoroughly remove the material adhering to the surface of the pack-breaking knife 13, so that the pack-breaking knife 13 contacts the material bag in a sharp state each time it breaks the bag, reducing the problem of incomplete pack breaking or entanglement caused by material adhering to the pack-breaking knife 13. It effectively peels the material off the surface of the pack-breaking knife 13. In addition, the baffle 24 can isolate the dust from the contact between the dust and the internal channel of the jet nozzle 23 during jetting, reducing dust backflow and nozzle blockage, and maintaining the reliability of long-term operation.

[0021] like Figure 5As shown, a driver 3 is fixedly connected to the side wall of the dust collector 16; the output end of the driver 3 passes through the side wall of the dust collector 16; a rotating rod 31 is fixedly connected to the output end of the driver 3; the end of the rotating rod 31 is rotatably connected to the inner side wall of the dust collector 16; two pull ropes 32 are fixedly connected to the middle of the rotating rod 31; a scraper 33 is slidably connected to the inner side wall of the dust collector 16; the scraper 33 is in contact with the surface of the filter plate 10; the ends of the two pull ropes 32 are fixedly connected to the top of the scraper 33; two springs 34 are fixedly connected to the top of the scraper 33; the ends of the springs 34 are fixedly connected to the top of the dust collector 16; a collection assembly 4 is installed at the bottom of the dust collector 16; during operation, the driver 3 is turned on, and the output end of the driver 3 drives the rotating rod 31 to rotate to a designated side, during which the rotating rod 31 winds the two pull ropes 32. As the pull rope 32 winds up the scraper 33 and slides upward on the inner wall of the dust collector hood 16, the rotating rod 31 elastically retracts, and the scraper 33 stops at the top of the dust collector hood 16. During the material conveying and dust removal process, a large amount of dust particles are intercepted on the surface of the filter plate 10. After a period of use, the output end of the control driver 3 rotates, releasing the pull rope 32. As the spring 34 elastically resets, the scraper 33 slides downward, scraping off the tiny particles and impurities intercepted on the surface of the filter plate 10. These particles are then collected and processed by the collection component 4. The above structure can effectively and quickly remove the sticky dust on the filter plate 10, reducing the clogging of the filter plate 10 during use and thus reducing the reduction in dust removal efficiency. It can also effectively reduce the need for regular disassembly and manual cleaning of the filter plate 10.

[0022] like Figure 5 and Figure 6 As shown, the collection component 4 includes a long collection box 41; the bottom of the dust collector 16 has an installation groove 43; the long collection box 41 is installed in the middle of the installation groove 43; rubber pads 42 are fixed to the top two sides of the long collection box 41; during operation, the long collection box 41 is slid into the dust collector 16 from one end, at which time the rubber pads 42 are in contact with the inner wall of the installation groove 43, the rubber pads 42 fill the tiny gap between the long collection box 41 and the installation groove 43, and provide a certain friction force to the installation groove 43. With the above structure, the filtered dust particles can be cleaned simply by pulling out the sealed long collection box 41, reducing the accumulation of dust that is lifted again by the airflow and re-attached to the filter plate 10, which is convenient for maintenance.

[0023] like Figure 2 As shown, multiple brush plates 5 are fixed to the top of the hopper 11; the multiple brush plates 5 are arranged in an alternating manner; during operation, when the chain in the lifting device 12 moves into the groove at the top of the hopper 11, it first passes through multiple brush plates 5. The multiple brush plates 5 bend as the chain moves, and the dust is intercepted by the brush plates 5. The above-mentioned densely structured and staggered brush plates 5 form a multi-layered and elastic isolation layer. Its complex and tortuous path can prevent dust from passing through and reduce dust from escaping and polluting the environment.

[0024] like Figure 4As shown, a wear-resistant ceramic layer 6 is fixedly connected to the middle of the conveying pipe 15; the wear-resistant ceramic layer 6 is set on the inner wall of the conveying pipe 15; during operation, when high-speed moving powder material impacts the inner wall of the pipe at a certain angle, the wear-resistant ceramic layer 6 protects the key parts in the pipe. The above structure can reduce the damage caused by long-term conveying of highly abrasive materials, and reduce the frequency and cost of maintenance.

[0025] like Figure 4 As shown, a vibration sensor 7 is installed in the middle of the conveying pipe 15; the vibration sensor 7 is installed on the outer wall of the conveying pipe 15; during operation, the vibration sensor 7 detects the small mechanical vibrations generated by the impact of the internal material on the pipe wall in real time during the powder conveying process. With the above structure, when a blockage occurs, the vibration sensor 7 downstream of the blockage point will immediately disappear or drop to an extremely low level, which can quickly locate the area where the blockage occurs and promptly detect and resolve it.

[0026] Compressed air enters the conveying device through pipelines and is fully mixed with the material in the mixing chamber or acceleration chamber. Driven by the airflow, the material forms a suspended state and flows at high speed along the conveying pipeline. During the conveying process, the conveying speed and quantity of the material can be controlled by adjusting the pressure and flow rate of the compressed air. Driven by the airflow, the material is conveyed to the bag filter dust collector through a long conveying pipeline, where the material is separated from the airflow. The separated material falls into the storage tank or directly enters the next process, while the airflow is discharged through the exhaust pipe or recycled.

[0027] During operation, the entire bag of material is fixed to the end of the chain. The sealed door of the hopper 11 is opened, and the material is lifted by the lifting device 12 and enters the hopper 11. At this time, the chain passes through the groove at the top of the hopper 11. After the sealed door is closed, the air pump 18 is turned on, and the air is drawn into the hopper 11 through multiple channels 14. The air is filtered by the filter plate 10 to remove small particles, and then the clean air is discharged to the middle of the exhaust pipe 19 through the exhaust pipe 17. The airflow inside the exhaust pipe 19 flows into multiple connecting pipes 21. At this time, the air pressure impacts the multiple baffles 24 at the end of the jet nozzle 23. The baffles 24 are opened by the airflow and rotate at the end of the jet nozzle 23. The airflow passes through multiple sets of jet nozzles 23 and is directed towards the crusher. The material is discharged from the surface of the de-packing knife 13. A limit is provided between the baffle 24 and the jet nozzle 23. When the jet nozzle 23 stops spraying, the baffle 24 automatically resets under its own gravity. The lifting device 12 controls the material to move downwards. When the bag contacts the ends of multiple de-packing knives 13, the ends of the de-packing knives 13 cut the bottom of the bag, and the powder falls from the bag opening. As the bag continues to move downwards, the bag opening gradually widens, allowing the material to quickly enter the bottom of the hopper 11. The bottom of the hopper 11 is equipped with a metering device. The material is then conveyed through the conveying pipe 15. When the material passes over and adheres to the surface of the de-packing knife 13, the airflow discharged from the multiple jet nozzles 23 blows the material away, causing it to fall. The control driver 3 is activated, driving... The output end of device 3 drives the rotating rod 31 to rotate to a designated side. During the rotation of the rotating rod 31, the two pull ropes 32 are wound around it. As the pull ropes 32 are wound up, the scraper 33 slides upward on the inner wall of the dust collector 16. The rotating rod 31 elastically retracts, and the scraper 33 stops at the top of the dust collector 16. During the material conveying and dust removal process, a large amount of dust particles are intercepted on the surface of the filter plate 10. After a period of use, the output end of the control driver 3 is rotated to release the pull ropes 32. As the spring 34 elastically returns to its original position, the scraper 33 slides downward. The scraper 33 scrapes off the small particles and impurities intercepted on the surface of the filter plate 10. After being collected and processed by the collection component 4, the collection box 41 is used to collect them. Sliding in from one end of the dust collector hood 16, the rubber pad 42 fits against the inner wall of the mounting groove 43. The rubber pad 42 fills the tiny gap between the collection box 41 and the mounting groove 43 and provides a certain friction force to the mounting groove 43. When the chain in the hoist 12 moves into the top groove of the hopper 11, it first passes through multiple brush plates 5. The multiple brush plates 5 bend with the movement of the chain and intercept the dust through the brush plates 5. When the high-speed moving powder material impacts the inner wall of the pipe at a certain angle, the wear-resistant ceramic layer 6 protects the key parts of the pipe. During the powder conveying process, the vibration sensor 7 detects the tiny mechanical vibrations of the pipe wall caused by the impact of the internal material in real time.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A long-distance quantitative pneumatic conveying device for powder and particle materials, comprising a fixing frame (1); characterized in that: A hopper (11) is fixedly connected to the middle of the fixed frame (1); a lifting device (12) is installed on the top of the fixed frame (1); multiple packing cutters (13) are fixedly connected to the inner side wall of the hopper (11); a conveying pipe (15) is installed at the bottom of the hopper (11); multiple sets of through slots (14) are opened on the side wall of the hopper (11); a dust collector hood (16) is fixedly connected to the side wall of the hopper (11); a filter plate (10) is fixedly connected to the middle of the dust collector hood (16); an exhaust pipe (17) is connected to the side wall of the dust collector hood (16); an air pump (18) is fixedly connected to the end of the exhaust pipe (17); an exhaust pipe (19) is fixedly connected to the middle of the air pump (18); a cleaning assembly (2) is installed in the middle of the exhaust pipe (19). The cleaning assembly (2) includes multiple connecting pipes (21); the multiple connecting pipes (21) are connected to the end of the exhaust pipe (19); the end of the connecting pipe (21) is connected to a rectangular pipe (22); the rectangular pipe (22) is fixed to the middle of the corresponding packing cutter (13); two sets of jet nozzles (23) are fixed to the middle of the rectangular pipe (22); the two sets of jet nozzles (23) are arranged opposite to each other; multiple baffles (24) are rotatably connected to the end of the jet nozzle (23).

2. The remote quantitative pneumatic conveying device for powder and granular materials according to claim 1, characterized in that: A driver (3) is fixedly connected to the side wall of the dust collector (16); the output end of the driver (3) passes through the side wall of the dust collector (16); a rotating rod (31) is fixedly connected to the output end of the driver (3); the end of the rotating rod (31) is rotatably connected to the inner side wall of the dust collector (16); two pull ropes (32) are fixedly connected to the middle of the rotating rod (31); a scraper (33) is slidably connected to the inner side wall of the dust collector (16); the scraper (33) is in contact with the surface of the filter plate (10); the ends of the two pull ropes (32) are fixedly connected to the top of the scraper (33); two springs (34) are fixedly connected to the top of the scraper (33); the ends of the springs (34) are fixedly connected to the top of the dust collector (16); a collection assembly (4) is installed at the bottom of the dust collector (16).

3. The remote quantitative pneumatic conveying device for powder and granular materials according to claim 2, characterized in that: The collection component (4) includes a long collection box (41); the dust cover (16) has an installation groove (43) at the bottom; the long collection box (41) is installed in the middle of the installation groove (43); and rubber pads (42) are fixed to the top two sides of the long collection box (41).

4. The remote quantitative pneumatic conveying device for powder and granular materials according to claim 1, characterized in that: The top of the hopper (11) is fixed with multiple brush plates (5); the multiple brush plates (5) are arranged in an alternating manner.

5. The remote quantitative pneumatic conveying device for powder and granular materials according to claim 1, characterized in that: A wear-resistant ceramic layer (6) is fixedly connected to the middle of the conveying pipe (15); the wear-resistant ceramic layer (6) is disposed on the inner side wall of the conveying pipe (15).

6. The remote quantitative pneumatic conveying device for powder and granular materials according to claim 1, characterized in that: A vibration sensor (7) is installed in the middle of the conveying pipe (15); the vibration sensor (7) is installed on the outer wall of the conveying pipe (15).

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