A VAS fluidized bed material tail material conveying and automatic cleaning injection device

Abstract

The present application provides a kind of VAS fluidized bed material tail material conveying and automatic cleaning injection device, it is related to tobacco processing technical field, including: vibrating conveying V-shaped groove, setting in rack;Material tail cleaning unit, including the V-shaped paddle of fitting vibrating conveying V-shaped groove;In material tail state, V-shaped paddle inserts vibrating conveying V-shaped groove and moves along the direction of feeding;Material tail injection unit, including compressed air nozzle towards vibrating conveying V-shaped groove;After V-shaped paddle cleans vibrating conveying V-shaped groove, compressed air nozzle opens and sprays vibrating conveying V-shaped groove.The present application improves the VAS material transmission efficiency when material flow reduces, prevents material tail material from slipping in the V-shaped groove of VAS, waste caused by clamping, saves production cost, improves the continuity of material tail material conveying, and material tail can normally enter next production process.It can solve the problem of low VAS material transmission efficiency when material flow reduces at the end of production.

Description

Technical Field

[0001] This invention relates to the field of tobacco processing technology, and in particular to a VAS fluidized bed tail material conveying and automatic cleaning and blowing device. Background Technology

[0002] The VAS fluidized bed is a tobacco processing equipment developed by the German company, H&M. In the tobacco processing industry, it is mainly used on tobacco processing lines to cool, dehydrate, and loosen tobacco shreds, and to screen stem fragments. The VAS fluidized bed mainly consists of a frame, air chambers with air distributors, V-shaped vibrating troughs, exhaust hoods and piping, a secondary separator, and a fan. During operation, cold air enters three air boxes through various sets of air ducts and is evenly blown onto the working mesh surface and V-shaped troughs of the trough. Under the action of high-speed airflow, the tobacco shreds are fully loosened and suspended in the VAS fluidized bed. While being tossed in the vibrating troughs, the tobacco shreds are simultaneously blown by the cold air from above, forming a fluidized state. Stems, which are heavier, fall into the gaps between the V-shaped troughs. Heavier stems are conveyed by the vibration of the lower mesh plate to the screw propeller for separation and removal. At the same time, the long V-shaped trough channels ensure the residence time of the tobacco shreds in the cooler, allowing for uniform and thorough cooling.

[0003] When VAS production is nearing its end, the material inside the VAS chamber becomes stagnant. The material conveying speed depends on the vibration frequency of the vibrating trough, the conveying stroke, and the material flow rate. Since the vibration frequency and conveying stroke of the VAS are fixed values, a rapid decrease in material flow rate significantly slows down the material conveying speed within the VAS. This intermittent material conveying severely impacts the continuity of normal production. After production ends, a significant amount of material remains inside the VAS fluidized bed. This material can only be manually cleaned and further processed by operators entering the VAS chamber during equipment maintenance, resulting in material waste.

[0004] After each production run, operators need to clean and maintain the VAS. Because the V-groove material is only 0.7mm thick, a foot pedal is required to enter the V-channels inside the VAS to prevent damage, resulting in significant labor intensity during maintenance. After the VAS fluidized bed has been running for a period, the V-groove needs to be completely removed, and the vibrating trough and V-groove surfaces need to be cleaned with water. After cleaning, the internal mesh of the VAS needs to be allowed to air dry naturally. Because the inside of the VAS is quite damp after washing, the natural drying time is long, affecting the normal production schedule. If moisture remains inside, it can cause re-clogging due to the presence of dust during production, affecting equipment performance and material processing parameters.

[0005] Therefore, how to provide a VAS fluidized bed tail material conveying and automatic cleaning and blowing device is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a VAS fluidized bed tail material conveying and automatic cleaning and blowing device, which can automatically clean and blow the fluidized bed during the tail material conveying process when production is about to end, and has the function of quickly drying the V-groove mesh surface, effectively reducing labor intensity and maintenance time.

[0007] This invention provides a VAS fluidized bed material conveying and automatic cleaning spraying device, characterized in that it includes: a vibrating conveying V-groove mounted on a frame; a material tail cleaning unit including a V-shaped paddle that fits into the vibrating conveying V-groove; in the material tail state, the V-shaped paddle is inserted into the vibrating conveying V-groove and moves along the feeding direction; and a material tail spraying unit including a compressed air nozzle facing the vibrating conveying V-groove; after the V-shaped paddle cleans the vibrating conveying V-groove, the compressed air nozzle opens and sprays air into the vibrating conveying V-groove.

[0008] Furthermore, an exhaust hood is provided above the vibratory conveyor V-shaped groove.

[0009] Furthermore, the tail cleaning unit also includes sprockets disposed on both sides inside the exhaust hood, and annular chains wound around the sprockets; the annular chains are wound around the sprockets, and the same positions of the annular chains on both sides are connected by cleaning rods, and several V-shaped paddles are fixedly connected to the cleaning rods.

[0010] Furthermore, the tail gas injection unit also includes a compressed air pipe connected inside the exhaust hood, a plurality of compressed air nozzles are fixed on the compressed air pipe, and a solenoid valve is provided at the inlet end of the compressed air pipe.

[0011] Furthermore, the sprocket is coaxially connected to a pulse disk, and a number of pulse plates are arranged around the pulse disk at intervals. A proximity switch is provided on one side of the pulse disk, and the proximity switch is connected to the solenoid valve. The proximity switch determines the current position of the V-shaped paddle by counting the number of pulse plates that pass through. When it is determined that the V-shaped paddle has been cleaned, it controls the solenoid valve to open so that the compressed air nozzle blows.

[0012] Furthermore, one of the sprockets is connected to a geared motor, and the sprockets on opposite sides are connected by a drive shaft.

[0013] Furthermore, when the proximity switch counts half of the total number of pulses, it controls the solenoid valve to open and the compressed air nozzle to blow; when the proximity switch counts the total number of pulses, it controls the reduction motor to stop and the solenoid valve to close, completing one cleaning and blowing cycle; the cleaning and blowing cycle is repeated several times.

[0014] Furthermore, after cleaning the vibratory conveyor V-groove, the solenoid valve is manually opened to allow the compressed air nozzle to blow air.

[0015] Furthermore, the compressed air nozzle is angled downwards toward the downstream direction of the vibrating conveying V-groove, forming an angle with the vibrating conveying V-groove.

[0016] Furthermore, the exhaust hood is equipped with an inspection door and a suction port.

[0017] The beneficial effects of this invention are as follows: By utilizing the movement of the V-shaped paddles, most of the tail material in the V-shaped groove of the vibratory conveyor can be scraped. The remaining small portion of small particles is then blown and transported by compressed air nozzles, thereby improving the material transfer efficiency of the VAS when the material flow rate decreases. This prevents the tail material from slipping or getting stuck in the V-shaped groove of the VAS, thus saving production costs, improving the continuity of tail material conveying, and allowing the tail material to enter the next production process normally. It solves the problem of low material transfer efficiency in the VAS when the material flow rate decreases near the end of production. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Enlarged view of point A;

[0021] Figure 3 For the present invention Figure 1 Enlarged view of point B;

[0022] Figure 4 For the present invention Figure 1 Enlarged view of point C;

[0023] Figure 5 This is a side view of the present invention;

[0024] Figure 6 For the present invention Figure 5 AA section view;

[0025] Figure 7 For the present invention Figure 6 Enlarged view of point D;

[0026] Figure 8 This is a schematic diagram of the V-shaped paddle structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the jetting structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the exhaust hood structure of the present invention;

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Frame, 2-Vibrating conveyor V-groove, 3-Exhaust hood, 301-Inspection door, 302-Suction interface;

[0031] 4-Tail cleaning unit, 401-V-type paddle, 402-Sprocket, 403-Ring chain, 404-Cleaning rod, 405-Chain guide rail, 406-Gear motor, 407-Drive shaft, 408-Bearing housing

[0032] 5-Material tail blowing unit, 501-Compressed air nozzle, 502-Compressed air pipe, 503-Solenoid valve; 6-Pulse disc, 601-Pulse plate, 602-Proximity switch. Detailed Implementation

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] Example 1

[0037] like Figures 1-9 As shown, the present invention provides a VAS fluidized bed material conveying and automatic cleaning spraying device for the tail material, characterized in that it includes: a vibrating conveying V-shaped groove 2, which is disposed on a frame 1; a tail cleaning unit 4, including a V-shaped paddle 401 that fits into the vibrating conveying V-shaped groove 2; in the tail state, the V-shaped paddle 401 is inserted into the vibrating conveying V-shaped groove 2 and moves along the feeding direction; a tail spraying unit 5, including a compressed air nozzle 501 facing the vibrating conveying V-shaped groove 2; after the V-shaped paddle 401 cleans the vibrating conveying V-shaped groove 2, the compressed air nozzle 501 opens and sprays air into the vibrating conveying V-shaped groove 2.

[0038] Specifically, the vibrating conveyor V-shaped trough 2 is located on the upper part of the frame 1, with its discharge end located at the inlet side of the belt conveyor. Through a vibrating and throwing process, the tobacco material is conveyed to the belt conveyor. The vibrating conveyor V-shaped trough 2 includes multiple V-shaped trough structures arranged side by side along the vertical feeding direction.

[0039] The tail cleaning unit 4 also includes multiple V-shaped baffles 401 arranged side by side along the vertical feeding direction. Each V-shaped groove has a V-shaped baffle 401 embedded in it, so that as the V-shaped baffles 401 move forward, the tail material in the vibrating conveyor V-shaped groove 2 is also cleaned onto the belt conveyor. The V-shaped baffles 401 are preferably V-shaped baffles 401.

[0040] The tail blowing unit 5 also includes multiple compressed air nozzles 501 arranged in parallel along the vertical feeding direction. Each V-groove is equipped with a compressed air nozzle 501, so that when the compressed air nozzle 501 is turned on, the tail material in the entire vibrating conveyor V-groove 2 can also be blown to the belt conveyor.

[0041] In addition, the vibratory conveying V-shaped groove 2 is installed on the working mesh surface of the groove body, and the V-shaped groove is also covered with dense mesh holes.

[0042] Example 2

[0043] like Figure 1 and Figure 10 As shown, an exhaust hood 3 is provided above the vibrating conveyor V-shaped trough 2. The exhaust hood 3 is equipped with an inspection door 301 and a suction port 302.

[0044] Specifically, an exhaust hood 3 is fastened above the vibrating conveyor V-shaped trough 2. The exhaust hood 3 includes side plates located on the left and right sides of the vibrating conveyor V-shaped trough 2, and a top plate connecting the top of the side plates, forming a single enclosure structure. Inspection doors 301 are provided on the side plates for access and maintenance; several suction ports 302 are provided on the top plate for connecting suction equipment to extract material dust generated by the vibration and throwing of the vibrating conveyor V-shaped trough 2 from the exhaust hood 3, thereby improving the purity of the material.

[0045] Example 3

[0046] like Figures 1-9 As shown, the tail cleaning unit 4 also includes sprockets 402 disposed on both sides inside the exhaust hood 3, and annular chains 403 wound around the sprockets 402; the annular chains 403 are wound around the sprockets 402, and the same positions of the annular chains 403 on both sides are connected by cleaning rods 404, and several V-shaped paddles 401 are fixedly connected to the cleaning rods 404. The tail blowing unit 5 also includes a compressed air pipe 502 connected inside the exhaust hood 3, several compressed air nozzles 501 are fixed on the compressed air pipe 502, and a solenoid valve 503 is provided at the inlet end of the compressed air pipe 502. A pulse disc 6 is coaxially connected to a sprocket 402. Several pulse plates 601 are spaced around the pulse disc 6. A proximity switch 602 is located on one side of the pulse disc 6 and is connected to a solenoid valve 503. The proximity switch 602 determines the current position of the V-shaped paddle 401 by counting the number of pulse plates 601 that have passed. When it determines that the V-shaped paddle 401 has finished cleaning, it controls the solenoid valve 503 to open, causing the compressed air nozzle 501 to spray air. One of the sprockets 402 is connected to a reduction motor 406, and the two sprockets 402 at opposite positions are connected by a drive shaft 407.

[0047] Specifically, sprockets 402 are rotatably connected to the first and last sides of the two side plates inside the exhaust hood 3 via bearing seats 408, for a total of four sprockets 402. A ring chain 403 is wound between two sprockets 402 on the same side, for a total of two ring chains 403. A geared motor 406 is mounted on the downstream end of the exhaust hood 3 via a bracket. The sprocket 402 directly connected to the geared motor 406 is the driving sprocket 402. Two corresponding sprockets 402 on different side plates are connected by a drive shaft 407. The drive shaft 407 directly connected to the driving sprocket 402 is the driving drive shaft 407. The driving drive shaft 407 and the driven drive shaft 407 are installed in parallel. The other driven sprockets 402 rotate passively via the driving drive shaft 407, the driven drive shaft 407, and the ring chains 403.

[0048] A cleaning rod 404 is connected between the two annular chains 403 at the same position on the same side. The cleaning rod 404 can be a high-strength steel strip. V-shaped paddles 401, corresponding in number and position to the vibratory conveying V-grooves 2, are sequentially fixed to the cleaning rod 404. The V-shaped paddles 401 are perpendicular to the vibratory conveying V-grooves 2 and mesh with the V-grooves with staggered teeth, with a meshing gap of 2mm.

[0049] At least two compressed air pipes 502 are arranged side by side at intervals along the feeding direction. The compressed air pipes 502 can be steel pipes. One end of the compressed air pipe 502 is connected to one side plate inside the exhaust hood 3, and the other end passes through and extends out of the other side plate. The extended ends of the two compressed air pipes 502 are connected in parallel and are jointly controlled by a solenoid valve 503.

[0050] Chain guide rails 405 are respectively provided at the bottom of the two ring chains 403. The ring chains 403 slide in contact with the chain guide rails 405 to keep the ring chains 403 horizontal when suspending the cleaning rod 404 and the V-shaped lever 401, so as not to bend due to falling.

[0051] A pulse disk 6 is coaxially connected to one of the driven sprockets 402 or driven drive shafts 407. The pulse disk 6 is located outside the exhaust hood 3, so the pulse disk 6 and the sprocket 402 have the same angular velocity. When the sprocket 402 rotates one revolution, the pulse disk 6 also rotates one revolution. The distance that the annular chain 403 moves when the sprocket 402 rotates one revolution is fixed, so the distance that the annular chain 403 moves can be determined from the rotation of the pulse disk 6. A proximity switch 602 is installed on the frame 1 below the pulse disk 6, with a gap of 4mm between it and the pulse disk 6. Multiple pulse plates 601 are arranged around the pulse disk 6. Each time a pulse plate 601 reaches the vicinity of the proximity switch 602, the proximity switch 602 will generate a signal. By analyzing the pulse plates 601 that pass through the proximity switch 602, the rotation amount of the pulse disk 6 can be determined, and thus the movement of the annular chain 403 can be determined, and the position of the V-shaped lever 401 on the annular chain 403 can be determined. When it is determined that the V-shaped paddle 401 has passed the target position of the compressed air nozzle 501, the solenoid valve 503 automatically opens to make the compressed air nozzle 501 spray.

[0052] It should be noted that in this embodiment 3, the automatic opening and closing control of the solenoid valve 503 is based on the judgment made by the proximity switch 602 counting the pulse plate 601. This judgment can be implemented by setting up a PLC controller, that is, the proximity switch 602 is connected to the PLC controller to transmit the counting signal, and when the counting signal reaches the preset value, the PLC controller controls the solenoid valve 503 to open.

[0053] Example 4

[0054] like Figures 1-9 As shown, when the proximity switch 602 counts half of the pulses 601 that have passed, it controls the solenoid valve 503 to open, causing the compressed air nozzle 501 to spray air. When the proximity switch 602 counts the total number of pulses 601 that have passed, it controls the reduction motor 406 to stop and the solenoid valve 503 to close, completing one cleaning and blowing cycle. This cleaning and blowing cycle is repeated several times. After cleaning the vibrating conveyor V-groove 2, the solenoid valve 503 is manually opened to cause the compressed air nozzle 501 to spray air.

[0055] Specifically, this embodiment 4 mainly describes the cleaning and blowing control logic of the device, which mainly includes two types of logic: automatic control and manual control.

[0056] The automatic control logic is mainly used for the automatic control of the tail material blowing unit 5 during the tail material conveying process. Since the cleaning and blowing process of this device is during the tail material conveying stage, the initial position of the V-shaped lever 401 is on the upper side of the ring chain 403 and facing upwards. During the cleaning process, one cycle is defined as the V-shaped lever 401 moving one revolution back to its initial position. The number of pulses 601 that the proximity switch 602 counts during this cycle is the total number. When the proximity switch 602 counts half of the total number of pulses 601, it is considered that the V-shaped lever 401 has moved past the blowing target position of the compressed air nozzle 501. At this time, the solenoid valve 503 automatically opens to allow the compressed air nozzle 501 to blow the remaining tail material. When the proximity switch 602 counts the total number of pulses 601, it is considered that the V-shaped lever 401 has moved one revolution back to its initial position. At this time, the reduction motor 406 automatically closes to stop the V-shaped lever 401 from moving, and the solenoid valve 503 closes to stop the compressed air nozzle 501 from blowing, thus completing one cleaning and blowing cycle. Repeat the cleaning and blowing cycle multiple times to ensure complete cleaning of the material. The specific number of repetitions can be preset.

[0057] In addition, the automatic start of the geared motor 406 in the material tail state can also be achieved automatically or manually. For example, a weighing unit is set at the bottom of the vibrating conveyor V-shaped trough 2. The material conveying process can be automatically determined to be in the material tail state by the large change in material weight, so that the geared motor 406 can be started automatically.

[0058] The manual control logic is mainly used for cleaning and maintenance of the bed after the tail material conveying is completed. As mentioned in the background section, after the VAS fluidized bed has been running for a period of time, the V-grooves need to be completely removed and the vibrating trough mesh and V-grooves need to be cleaned with water. In this embodiment, after cleaning, the solenoid valve 503 is manually opened to allow the compressed air nozzle 501 to blow dry and dehumidify the fluid.

[0059] In this embodiment, after production is completed, the VAS fluidized bed is automatically cleaned and sprayed, achieving the purpose of timed and regular automatic maintenance. After the V-groove is disassembled and cleaned regularly, the mesh surface is sprayed and blew, which has the function of quickly drying the V-groove mesh surface, effectively reducing the labor intensity and time spent on manual maintenance.

[0060] Example 5

[0061] like Figure 1 and Figure 9 As shown, the compressed air nozzle 501 is angled downwards toward the downstream direction of the vibrating conveying V-groove 2, forming an angle with the vibrating conveying V-groove 2.

[0062] Specifically, the compressed air nozzle 501 forms a 45-degree angle with the vibrating conveyor V-shaped groove 2, and the oblique blowing pushes the material in the direction of feeding by wind force.

[0063] The working principle of this device is as follows:

[0064] ① Automatic spraying mode: When the VAS fluidized bed enters the material tail state, the device automatically starts and the reducer runs. The V-shaped baffle 401, which is initially positioned above the chain, moves forward in the material conveying direction through the chain. Under the push of the V-shaped baffle 401, the material that is slipping or stuck in the V-groove and on the surface is conveyed to the end of the vibrating conveyor V-groove 2 and then to the next-level belt conveyor. When the V-shaped baffle 401 rotates to the position above the chain, the solenoid valve 503 opens and compressed air is sprayed in a directional manner through the two compressed air pipes 502 fixed on the exhaust hood 3 to the entire surface of the vibrating conveyor V-groove 2, and the material that the V-shaped baffle 401 has not cleaned is blown forward.

[0065] ② Manual spraying mode: After the VAS fluidized bed has been running for a period of time, the V-groove needs to be completely removed and the vibrating trough screen and V-groove need to be cleaned with water. After cleaning, the solenoid valve 503 is manually opened to allow the compressed air nozzle 501 to spray the V-groove to dry and dehumidify it.

[0066] The automatic control principle of this device is as follows:

[0067] During operation, the pulse disk 6 mounted on the end of the driven drive shaft 407 rotates synchronously. The proximity switch 602 begins counting the pulse plates 601. The V-shaped lever 401 completes one revolution, and the count of pulse plates 601 remains constant. The total number of pulses counted by the V-shaped lever 401 during one revolution is used as a baseline to set the opening and closing of the solenoid valve 503 and the operating time of the V-shaped lever 401. From the initial position of the V-shaped lever 401 (e.g., ...) Figure 1 The counting begins at the middle position. When pulse plate 601 counts to half the total number required for one revolution of V-shaped deflector 401, solenoid valve 503 opens, and compressed air begins to spray for the duration of half the total number of pulses. When pulse plate 601 reaches the total count, solenoid valve 503 closes, thus completing one cycle. After the set number of cycles is completed, the device automatically stops and returns to its initial position, ensuring uninterrupted normal operation during production. This cycle is repeated. The device needs to be activated for maintenance and cleaning of the VAS fluidized bed, using manual mode to control solenoid valve 503 and geared motor 406.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A VAS fluidized bed tail material conveying and automatic cleaning jetting device, characterized in that, include: The vibratory conveyor V-groove is mounted on the frame; The tail cleaning unit includes a V-shaped paddle that fits into the vibrating conveyor V-groove; in the tail state, the V-shaped paddle is inserted into the vibrating conveyor V-groove and moves along the feeding direction; The tail blowing unit includes a compressed air nozzle facing the vibrating conveyor V-groove; after the V-shaped paddle cleans the vibrating conveyor V-groove, the compressed air nozzle opens to blow air into the vibrating conveyor V-groove; An exhaust hood is installed above the vibratory conveyor V-shaped groove; The tail cleaning unit also includes sprockets disposed on both sides inside the exhaust hood, and an annular chain wound around the sprockets; The annular chain is wound around the sprocket, and the same positions of the annular chains on both sides are connected by a cleaning rod. V-shaped paddles corresponding to the number and position of the vibratory conveying V-grooves are fixed to the cleaning rod in sequence. The V-shaped paddles are perpendicular to the vibratory conveying V-grooves and mesh with the V-grooves with staggered teeth. The V-shaped paddles, initially positioned above the chain, move forward in the material conveying direction. Driven by the V-shaped paddles, the material that is slipping or stuck in the V-groove and on its surface is conveyed to the end of the vibrating conveyor V-groove and then to the next-stage belt conveyor.

2. The VAS fluidized bed tail material conveying and automatic cleaning jetting device according to claim 1, characterized in that, The tail gas injection unit also includes a compressed air pipe connected inside the exhaust hood. Several compressed air nozzles are fixed on the compressed air pipe, and a solenoid valve is provided at the inlet end of the compressed air pipe.

3. The VAS fluidized bed tail material conveying and automatic cleaning jetting device according to claim 2, characterized in that, The sprocket is coaxially connected to a pulse disk, and several pulse plates are arranged around the pulse disk at intervals. A proximity switch is provided on one side of the pulse disk, and the proximity switch is connected to the solenoid valve. The proximity switch determines the current position of the V-shaped lever by counting the number of pulses that pass through it. When it is determined that the V-shaped lever has been cleaned, it controls the solenoid valve to open so that the compressed air nozzle can blow air.

4. The VAS fluidized bed tail material conveying and automatic cleaning jetting device according to claim 3, characterized in that, One of the sprockets is connected to a geared motor, and the two sprockets on opposite sides are connected by a drive shaft.

5. The VAS fluidized bed tail material conveying and automatic cleaning jetting device according to claim 4, characterized in that, When the proximity switch counts half of the total number of pulses, it controls the solenoid valve to open and cause the compressed air nozzle to blow. When the proximity switch counts the total number of pulses passed, it controls the reduction motor to stop and the solenoid valve to close, completing one cleaning and blowing cycle. Repeat the cleaning and blowing cycle several times.

6. The VAS fluidized bed tail material conveying and automatic cleaning jetting device according to claim 2, characterized in that, After cleaning the vibratory conveyor V-groove, manually control the solenoid valve to open and allow the compressed air nozzle to blow air.

7. The VAS fluidized bed tail material conveying and automatic cleaning jetting device according to claim 1, characterized in that, The compressed air nozzle is angled downwards toward the downstream direction of the vibrating conveying V-groove, forming an angle with the vibrating conveying V-groove.

8. The VAS fluidized bed tail material conveying and automatic cleaning jetting device according to claim 1, characterized in that, The exhaust hood is equipped with an inspection door and a suction port.

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