Pneumatic conveying device for suspending agent pesticide raw materials

Abstract

The invention discloses a pneumatic conveying device for suspending agent type pesticide raw materials, and relates to the technical field of pesticide raw material conveying, the pneumatic conveying device comprises a conveying air pipe, a feeding pipe and a discharging pipe, the feeding pipe and the discharging pipe are communicated with the conveying air pipe, a fan is installed at the end, corresponding to the feeding pipe, of the conveying air pipe, and a filter is installed at the end, corresponding to the discharging pipe, of the conveying air pipe; a partition assembly is installed on the material conveying air pipe. A through groove is formed in the position, located behind the partition assembly, of the material conveying air pipe. A sealing strip used for blocking the through groove is movably installed on the material conveying air pipe. In the normal state, the partition assembly cannot partition the conveying air pipe, the sealing strip blocks the through groove, and materials in the conveying air pipe can be conveyed along the conveying air pipe; when the partition assembly partitions the material conveying air pipe, the sealing strips are opened synchronously to enable the through groove to be in a smooth state, air outside the material conveying air pipe can enter the material conveying air pipe, air pressure on the two sides of the partition assembly is balanced, and the situation that the partition door and the pipeline deform due to the air pressure is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide raw material transportation, in particular to a pneumatic transportation device for suspension pesticide raw materials. Background Art

[0002] When preparing suspension pesticides, the powdered raw materials need to be transported by pneumatic conveying devices. The pneumatic conveying device belongs to dense phase medium pressure pneumatic conveying. Its working principle is to use the kinetic energy of the airflow to suspend the bulk material and transport it along the pipeline with the airflow.

[0003] For example, the Chinese invention patent with publication number CN101022890B discloses a pneumatic conveying device for bulk raw materials, which includes a device for conveying a bulk raw material flow carried in a conveying gas to a cylindrical container basically tangentially through at least two tangential inlets separated along the circumference, and an outlet for discharging the bulk raw material, wherein the outlet is located at one end of the cylindrical container, and the bulk raw material reaches the location from the container through the outlet while maintaining its tubular structure, wherein the container has a main body and a truncated cone part, and the diameter of the outlet is smaller than the diameter of the main body, so that the rotating mass of the bulk raw material is continuously accumulated until the bulk raw material falls from the outlet like a sleeve.

[0004] For another example, a Chinese utility model with publication number CN214652017U discloses a pneumatic powder conveying device for a natural product Ganoderma lucidum raw material, which includes a double-layer heating net, a filter net, a heating chamber, a temperature sensor, a feed hopper, a hydraulic rod, a powder conveying pipeline, a first support frame, and a second support frame. The upper and lower ends of the double-layer heating net are fixedly connected to the interior of the heating chamber, a filter net is provided on the left side of the heating chamber, the right end of the heating chamber is conductively connected to the left end of the powder conveying pipeline, and the top of the temperature sensor is welded to the inner side of the top of the left end of the powder conveying pipeline.

[0005] Since the air flow velocity in the pipeline of the pneumatic conveying device is very high, the material flows very fast in the pipeline. In order to avoid the collision between the large volume of materials and the pipe wall and damage the pipe wall, it is necessary to disperse the materials before the materials enter the pipeline, that is, to set a dispersion device at the inlet. In order to deal with the sudden failure of the dispersion device, a partition door must be set in the pipeline. When the dispersion device suddenly fails, the partition door can be closed immediately to seal the pipeline and prevent the large volume of materials falling into the pipeline from flowing along the pipeline and colliding with the pipe wall. In actual use, since the fast-flowing air has a large inertia, when the partition door is quickly closed, the air behind the partition door will continue to flow in the original direction, which will create a vacuum area behind the partition door. The air in front of the partition door will exert a lot of pressure on the partition door, and the air outside the pipeline will also exert a lot of pressure on the pipeline behind the partition door, causing the partition door and pipeline to deform. Summary of the invention

[0006] The purpose of the present invention is to provide a pneumatic conveying device for suspension pesticide raw materials to solve the above-mentioned shortcomings in the prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a pneumatic conveying device for suspension pesticide raw materials, comprising a feed air duct and an inlet pipe and an outlet pipe connected to the feed air duct, a fan is installed at one end of the feed air duct corresponding to the inlet pipe, a filter is installed at one end of the feed air duct corresponding to the outlet pipe, and a partition assembly is installed on the feed air duct; a through groove is opened on the feed air duct at a position behind the partition assembly; a seal strip for sealing the through groove is movably installed on the feed air duct.

[0008] As a preferred technical solution of the present invention, the partition assembly includes six partition plates that movably cooperate with the material conveying air duct, the partition plates have a first state of blocking the material conveying air duct, and a second state of keeping the material conveying air duct unobstructed; the partition plates include a rectangular part and a triangular part, wherein the triangular part is an equilateral triangle.

[0009] As a preferred technical solution of the present invention, an inner ring is fixedly installed on the outer wall of the material conveying air duct, and guide arms are evenly fixedly installed on the inner ring along its circumference, the same number as the partition plate and the positions correspond to each other, and the outer ends of each guide arm are fixedly connected to an outer ring coaxial with the inner ring; a guide groove is opened on the guide arm, and a first round rod matching the guide groove is fixedly installed on the partition plate.

[0010] As a preferred technical solution of the present invention, a square slider is fixedly installed on the partition plate; a coaxial annular plate is rotatably installed on the outer wall of the material conveying air duct, and a sliding groove is provided on the surface of the annular plate corresponding to the position of each square slider, and the square slider slides in cooperation with the corresponding sliding groove, and the lengths of the sliding grooves are the same and together form a hexagon, and the hexagon coincides with the center of the annular plate.

[0011] As a preferred technical solution of the present invention, the through groove is an arc groove, the number of the through grooves is six, and they are evenly arranged along the circumference of the material conveying air duct; the seal is arc-shaped and a control rod is fixedly installed on the seal, and a limit sleeve that slides with the control rod is fixedly installed on the outer wall of the material conveying air duct through a bracket.

[0012] As a preferred technical solution of the present invention, a second round rod is rotatably mounted on the control rod; a guide plate is fixedly mounted on the annular plate at a position corresponding to each control rod through a wing plate, and an inclined groove is provided on the guide plate to cooperate with the corresponding second round rod.

[0013] As a preferred technical solution of the present invention, an arc-shaped rack is fixedly installed on the annular plate, a driving motor is fixedly installed on the material conveying air duct through a motor bracket, and a driving gear meshing with the arc-shaped rack is fixedly installed on the output end of the driving motor.

[0014] As a preferred technical solution of the present invention, a vertical shaft coaxial with the feed pipe is rotatably installed in the feed pipe, a component for dispersing materials is installed on the vertical shaft, and a first bevel gear is fixedly sleeved on the vertical shaft; a horizontal shaft is rotatably installed on the feed pipe, and a second bevel gear meshing with the first bevel gear is fixedly installed on one end of the horizontal shaft; a disc is fixedly installed on the other end of the horizontal shaft, and a plurality of top blocks are evenly installed on the circumferential surface of the disc, and the top blocks slide with the disc along the radial direction of the disc, and the outer end surface of the top block is a hemispherical surface, and an elastic member is connected between the top block and the disc; a horizontal elastic telescopic rod is fixedly installed on the motor bracket, and a translation plate is fixedly installed on the end of the telescopic section of the elastic telescopic rod, and a circular ring is fixedly installed on the translation plate facing the side of the disc, and one end surface of the circular ring is a convex arc surface; a bridging block is fixedly installed on the other side of the translation plate through a connecting rod; a power supply and a first conductive rod connected to the power supply are fixedly installed on the motor bracket, and a second conductive rod is fixedly installed on the driving motor.

[0015] As a preferred technical solution of the present invention, the top surface of the first conductive rod and the bottom surface of the second conductive rod are both inclined surfaces, and the top surface and bottom surface of the bridging block are respectively adapted to the bottom surface of the second conductive rod and the top surface of the first conductive rod; the interior of the bridging block is a conductor, and the outer surface of the bridging block is covered with an insulator.

[0016] In the above technical scheme, the present invention provides a pneumatic conveying device for suspension pesticide raw materials, in which a through slot is opened on the material conveying air duct behind the partition component, and a seal for sealing the through slot is installed on the material conveying air duct; under normal conditions, the partition component will not partition the material conveying air duct, the seal will seal the through slot, and the material in the material conveying air duct will be transported along the material conveying air duct; when the partition component partitions the material conveying air duct, the seal will open synchronously to make the through slot unobstructed, so that the air outside the material conveying air duct can enter the material conveying air duct, so that the air pressure on both sides of the partition component is balanced, avoiding the deformation of the partition door and the pipeline caused by the air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a first stereoscopic view of the pneumatic conveying device for suspension pesticide raw materials in Example 1;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0020] Figure 3 It is a second stereoscopic view of the pneumatic conveying device for suspension pesticide raw materials in Example 1;

[0021] Figure 4 for Figure 3 The enlarged schematic diagram of point B in the middle;

[0022] Figure 5 This is a schematic diagram of the first state of the partition board in Example 1;

[0023] Figure 6 This is a schematic diagram of the transformation process state of the partition board in Example 1;

[0024] Figure 7 It is a partial structural side view of the pneumatic conveying device for suspension pesticide raw materials in Example 2;

[0025] Figure 8 for Figure 7 Enlarged schematic diagram of point C in the middle.

[0026] Description of reference numerals:

[0027] 1. Material conveying air duct; 101. Through slot; 2. Material inlet pipe; 3. Material outlet pipe; 4. Fan; 5. Filter; 6. Partition assembly; 601. Partition plate; 602. Inner ring; 603. Guide arm; 604. Outer ring; 605. Guide slot; 606. First round rod; 607. Square slider; 608. Ring plate; 609. Slide slot; 610. Arc rack; 611. Drive motor; 612 , driving gear; 7, sealing strip; 8, control rod; 9, limiting sleeve; 10, second round rod; 11, guide plate; 1101, inclined groove; 12, vertical axis; 13, first bevel gear; 14, horizontal axis; 15, second bevel gear; 16, disc; 17, top block; 18, elastic telescopic rod; 19, translation plate; 20, ring; 21, bridging block; 22, first conductive rod; 23, second conductive rod. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1 , Figure 3 and Figure 4As shown, this embodiment provides a pneumatic conveying device for suspension pesticide raw materials, including a conveying air duct 1 and an inlet pipe 2 and an outlet pipe 3 connected to the conveying air duct 1; the conveying air duct 1, the inlet pipe 2 and the outlet pipe 3 are all round tubes, the inlet pipe 2 is located above the conveying air duct 1, and the outlet pipe 3 is located below the conveying air duct 1; a fan 4 is installed at one end of the conveying air duct 1 corresponding to the inlet pipe 2, and a filter 5 is installed at one end of the conveying air duct 1 corresponding to the outlet pipe 3 (i.e., the end of the conveying air duct 1); under normal circumstances, the fan 4 sends external air into the interior of the conveying air duct 1, so that the conveying air duct 1 An airflow is generated in the material air duct 1, and the direction of the airflow is from the side of the fan 4 to the side of the filter 5. After being dispersed, the material enters the material conveying air duct 1 from the feed pipe 2 under the action of gravity, and reaches the end of the material conveying air duct 1 along the feed pipe 1 driven by the airflow. After the material contacts the filter 5 at the end of the material conveying air duct 1, it falls from the discharge pipe 3, and the flowing air flows out from the filter 5 to the outside of the material conveying air duct 1; a dispersion device (not shown in the figure) is provided at the feed pipe 2, and a partition component 6 is installed on the material conveying air duct 1. The position behind the partition component 6 on the material conveying air duct 1 A through slot 101 is provided on the conveying air duct 1, and a seal 7 for sealing the through slot 101 is movably installed on the conveying air duct 1; under normal circumstances, the dispersion device disperses the material in the feeding pipe 2, so that the material entering the conveying air duct 1 is dispersed, and the seal 7 also blocks the through slot 101 to prevent the air inside and outside the conveying air duct 1 from flowing through the through slot 101; once the dispersion device fails, the partition component 6 will isolate the conveying air duct 1 in a relatively short time to prevent the undispersed material from flowing along the conveying air duct 1 and damaging the inner wall of the conveying air duct 1; the partition component 6 The air behind the partition component 6 will continue to flow along the original flow direction under the action of inertia, thereby forming a vacuum area behind the partition component 6. In view of this situation, while the partition component 6 isolates the material conveying air duct 1, the seal 7 also moves synchronously to open the through groove 101, so that the air outside the material conveying air duct 1 can enter the material conveying air duct 1 from the through groove 101, thereby ensuring the air pressure balance on both sides of the partition component 6, and also ensuring the air pressure balance inside and outside the material conveying air duct 1, avoiding the partition component 6 and the material conveying air duct 1 from being deformed under the action of air pressure.

[0031] like Figure 5 and Figure 6 As shown, the partition assembly 6 includes six partition plates 601 that are movably matched with the material conveying air duct 1. The partition plates 601 have a first state (such as Figure 5 As shown), and the second state of keeping the conveying air duct 1 unobstructed, Figure 6 is a state diagram of the partition plate 601 during the transition from the first state to the second state, Figure 6The medium gray area is the wind-passing area in the material conveying air duct 1; the partition plate 601 includes a rectangular part and a triangular part, wherein the triangular part is an equilateral triangle; it should be noted that the material conveying air duct 1 is divided into two sections by the partition plate 601, and both sides of the partition plate 601 are in contact with the end face of the material conveying air duct 1; in the first state, the edges of the triangular parts of adjacent partition plates 601 are completely in contact, and one of the vertices of the triangular parts of each partition plate 601 coincides with each other; in the first state, the edge portions of the triangular parts of adjacent partition plates 601 are in contact, and the vertices of the triangular parts of each partition plate 601 do not coincide; each partition plate 601 together forms a regular hexagonal area, which is the wind-passing area.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, an inner ring 602 is fixedly installed on the outer wall of the conveying air duct 1, and guide arms 603 of the same number and corresponding positions as the partition plate 601 are evenly fixedly installed on the inner ring 602 along its circumference, and the outer ends of each guide arm 603 are fixedly connected with an outer ring 604 coaxial with the inner ring 602; a guide groove 605 is provided on the guide arm 603, and a first round rod 606 matching the guide groove 605 is installed on the partition plate 601; a square slider 607 is fixedly installed on the partition plate 601; an annular plate 608 coaxial with it is rotatably installed on the outer wall of the conveying air duct 1, and a slide groove 609 is provided on the surface of the annular plate 608 corresponding to the position of each square slider 607, and the square slider 607 is slidably matched with the corresponding slide groove 609, and the lengths of each slide groove 609 are the same and together form a hexagon, and the hexagon coincides with the center of the annular plate 608; It should be noted that for the convenience of display, Figure 1 and Figure 3 The two sections of the material conveying air pipe 1 are translated in opposite directions along the axial direction.

[0033] Specifically, Figure 1 and Figure 3 In the state, the annular plate 608 rotates a certain angle in a short time (generally 5 seconds) under the action of external force. When the annular plate 608 rotates, each slide groove 609 on the annular plate 608 generates a force on the corresponding square slider 607, so that the square slider 607 slides along the slide groove 609, and each first round rod 606 also moves along the corresponding guide groove 605, so that each partition plate 601 generates a translation along the direction of the corresponding guide groove 605 while rotating; Figure 6 In the state, the annular plate 608 continues to rotate clockwise until the partition plate 601 reaches the second state; in summary, the state switching of each partition plate 601 can be achieved by only controlling the rotation of the annular plate 608 through external force.

[0034] like Figure 2and Figure 4 As shown, the through groove 101 is an arc groove, the number of the through grooves 101 is six, and they are evenly arranged along the circumference of the conveying air duct 1; the seal 7 is arc-shaped and a control rod 8 is fixedly installed on the seal 7, and a limit sleeve 9 that slidably cooperates with the control rod 8 is fixedly installed on the outer wall of the conveying air duct 1 through a bracket; the control rod 8 slides along the radial direction of the conveying air duct 1; a second round rod 10 is rotatably installed on the control rod 8; a guide plate 11 is fixedly installed on the position corresponding to each control rod 8 on the annular plate 608 through a wing plate, and an inclined groove 1101 that cooperates with the corresponding second round rod 10 is opened on the guide plate 11; specifically, when the annular plate 608 rotates, it will drive each guide plate 11 to rotate synchronously through the wing plate, and the inclined groove 1101 on the guide plate 11 will generate an interaction force with the corresponding second round rod 10, so that the second round rod 10 and the control rod 8 move radially along the conveying air duct 1, thereby driving the seal 7 to move radially along the conveying air duct 1, so as to achieve the blocking and opening of the through groove 101.

[0035] like Figure 3 As shown, an arc-shaped rack 610 is fixedly mounted on the annular plate 608, a driving motor 611 is fixedly mounted on the material conveying air duct 1 via a motor bracket, and a driving gear 612 meshing with the arc-shaped rack 610 is fixedly mounted on the output end of the driving motor 611; in this embodiment, it is only necessary to energize the driving motor 611 so that the driving motor 611 drives the driving gear 612 to rotate, and the driving gear 612 can drive the arc-shaped rack 610 and the annular plate 608 to rotate a certain angle, so that each partition plate 601 is converted from the second state to the first state, thereby blocking the material conveying air duct 1; at the same time, each seal 7 also synchronously opens the corresponding through slot 101 to allow external air to enter the material conveying air duct 1.

[0036] Example 2

[0037] like Figure 7 and Figure 8As shown, on the basis of the previous embodiment, in this embodiment, a vertical shaft 12 coaxial with the feed pipe 2 is rotatably installed in the feed pipe 2, a component for dispersing materials (not shown in the figure) is installed on the vertical shaft 12, a first bevel gear 13 is fixedly sleeved on the vertical shaft 12, and a driving device (not shown in the figure) for driving the first bevel gear 13 to rotate is additionally installed on the outside of the feed pipe 2; a horizontal shaft 14 is rotatably installed on the feed pipe 2, and a gear meshing with the first bevel gear 13 is fixedly installed at one end of the horizontal shaft 14. The second bevel gear 15; a disk 16 is fixedly mounted on the other end of the horizontal shaft 14, and a plurality of top blocks 17 are evenly mounted on the circumferential surface of the disk 16. The top blocks 17 slide with the disk 16 along the radial direction of the disk 16, and the outer end surface of the top block 17 is a hemispherical surface, and an elastic member is connected between the top block 17 and the disk 16; a horizontal elastic telescopic rod 18 is fixedly mounted on the motor bracket, and a translation plate 19 is fixedly mounted on the end of the telescopic section of the elastic telescopic rod 18, and the translation plate 19 is fixed toward one side of the disk 16 A circular ring 20 is installed, and one end face of the circular ring 20 is a convex arc surface; a bridging block 21 is fixedly installed on the other side of the translation plate 19 through a connecting rod; a power supply and a first conductive rod 22 connected to the power supply are fixedly installed on the motor bracket, and a second conductive rod 23 is fixedly installed on the driving motor 611; the top surface of the first conductive rod 22 and the bottom surface of the second conductive rod 23 are both inclined surfaces, and the top surface and bottom surface of the bridging block 21 are respectively adapted to the bottom surface of the second conductive rod 23 and the top surface of the first conductive rod 22; the interior of the bridging block 21 includes two independent conductors, and the outer surface of the bridging block 21 is coated with an insulator; two conductive wires are installed in the first conductive rod 22 and the second conductive rod 23; when the bridging block 21 fits with the first conductive rod 22 and the second conductive rod 23, the two conductors in the bridging block 21 are respectively connected to the corresponding conductive wires, and the power supply, the first conductive rod 22, the second conductive rod 23 and the bridging block 21 together form a complete circuit, and the power supply can supply power to the driving motor 611.

[0038] Specifically, Figure 8For example, under normal working conditions, the driving device outside the feed pipe 2 drives the first bevel gear 13 and the vertical shaft 12 to rotate, and the component for dispersing materials on the vertical shaft 12 disperses the materials falling in the feed pipe 2; at the same time, the first bevel gear 13 drives the second bevel gear 15, the horizontal shaft 14, the disc 16 and the top block 17 to rotate at high speed, and the top block 17 moves radially outward along the disc 16 under the action of centrifugal force. Since the outer end surface of the top block 17 is a hemispherical surface and is in contact with the end surface of the disc 16, Therefore, the ring 20 is restricted in a predetermined position under the thrust of the top block 17 and cannot move to the left. The translation plate 19 and the bridge block 21 are also restricted in a predetermined position and cannot move to the left. The elastic telescopic rod 18 is in a compressed state. In this state, the bridge block 21 and the first conductive rod 22 and the second conductive rod 23 are evenly separated. The drive motor 611 is not powered, and each partition plate 601 remains in the second state. Once the drive device outside the feed pipe 2 drives the first bevel gear 13 and the vertical shaft 12 When a failure occurs during rotation, that is, when the component for dispersing materials on the vertical shaft 12 cannot disperse the materials falling in the feed pipe 2, the vertical shaft 12 will stop rotating, and accordingly, the first bevel gear 13, the second bevel gear 15, the horizontal shaft 14, the disc 16 and the top block 17 will also stop rotating, and the centrifugal force of the top block 17 disappears and moves radially inward along the disc 16 under the action of the rebound force of the elastic member, and the top block 17 also releases the thrust effect on the ring 20; the ring 20, the translation plate 19 and the bridge block 21 as a whole is able to move to the left under the action of the rebound force of the elastic telescopic rod 18 until the bridging block 21 is in contact with the first conductive rod 22 and the second conductive rod 23. In this state, the power supply on the motor bracket supplies power to the driving motor 611, and the driving motor 611 then drives the driving gear 612 to rotate, and the driving gear 612 drives the arc rack 610 and the annular plate 608 to rotate a certain angle, so that each partition plate 601 is converted from the second state to the first state, and the material conveying air duct 1 is blocked.

[0039] To sum up, in this embodiment, when the dispersion device on the feed pipe 2 fails, the drive motor 611 will be automatically energized to drive the drive gear 612 to rotate, so that each partition plate 601 automatically switches from the second state to the first state, thereby blocking the feed air duct 1 in time.

[0040] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pneumatic conveying device for suspension pesticide raw materials, comprising a conveying air duct (1) and an inlet pipe (2) and an outlet pipe (3) connected to the conveying air duct (1), a fan (4) is installed at one end of the conveying air duct (1) corresponding to the inlet pipe (2), a filter (5) is installed at one end of the conveying air duct (1) corresponding to the outlet pipe (3), and a partition component (6) is installed on the conveying air duct (1), characterized in that: A through slot (101) is provided on the material conveying air duct (1) at a position behind the partition assembly (6); a sealing strip (7) for sealing the through slot (101) is movably mounted on the material conveying air duct (1).

2. A pneumatic conveying device for suspension pesticide raw materials according to claim 1, characterized in that: The partition assembly (6) comprises six partition plates (601) movably matched with the material conveying air duct (1); the partition plates (601) have a first state for blocking the material conveying air duct (1) and a second state for keeping the material conveying air duct (1) unobstructed; the partition plates (601) comprise a rectangular portion and a triangular portion, wherein the triangular portion is an equilateral triangle.

3. A pneumatic conveying device for suspension pesticide raw materials according to claim 2, characterized in that: An inner ring (602) is fixedly mounted on the outer wall of the material conveying air duct (1); guide arms (603) having the same number as the partition plate (601) and corresponding positions are evenly fixedly mounted on the inner ring (602) along its circumference; the outer ends of the guide arms (603) are fixedly connected to an outer ring (604) coaxial with the inner ring (602); a guide groove (605) is formed on the guide arm (603); and a first round rod (606) matching the guide groove (605) is mounted on the partition plate (601).

4. A pneumatic conveying device for suspension pesticide raw materials according to claim 3, characterized in that: A square slider (607) is fixedly mounted on the partition plate (601); a coaxial annular plate (608) is rotatably mounted on the outer wall of the conveying air duct (1); a slide groove (609) is provided on the surface of the annular plate (608) corresponding to the position of each square slider (607); the square slider (607) and the corresponding slide groove (609) are slidably matched; the lengths of the slide grooves (609) are the same and together form a hexagon; the hexagon coincides with the center of the annular plate (608).

5. A pneumatic conveying device for suspension pesticide raw materials according to claim 4, characterized in that: The through grooves (101) are arc-shaped grooves, the number of the through grooves (101) is six, and they are evenly arranged along the circumference of the material conveying air duct (1); the seal strip (7) is arc-shaped and a control rod (8) is fixedly mounted on the seal strip (7); a limit sleeve (9) that slidably cooperates with the control rod (8) is fixedly mounted on the outer wall of the material conveying air duct (1) via a bracket.

6. A pneumatic conveying device for suspension pesticide raw materials according to claim 5, characterized in that: A second round rod (10) is rotatably mounted on the control rod (8); a guide plate (11) is fixedly mounted on the annular plate (608) at a position corresponding to each control rod (8) via a wing plate, and an inclined groove (1101) is provided on the guide plate (11) to cooperate with the corresponding second round rod (10).

7. A pneumatic conveying device for suspension pesticide raw materials according to claim 6, characterized in that: An arc-shaped rack (610) is fixedly mounted on the annular plate (608), a driving motor (611) is fixedly mounted on the material conveying air duct (1) via a motor bracket, and a driving gear (612) meshing with the arc-shaped rack (610) is fixedly mounted on the output end of the driving motor (611).

8. The pneumatic conveying device for suspension pesticide raw materials according to claim 7, characterized in that: A vertical shaft (12) coaxial with the feeding pipe (2) is rotatably mounted in the feeding pipe (2), a component for dispersing materials is mounted on the vertical shaft (12), and a first bevel gear (13) is fixedly sleeved on the vertical shaft (12); a horizontal shaft (14) is rotatably mounted on the feeding pipe (2), and a second bevel gear (15) meshing with the first bevel gear (13) is fixedly mounted on one end of the horizontal shaft (14); a disk (16) is fixedly mounted on the other end of the horizontal shaft (14), and a plurality of top blocks (17) are evenly mounted on the circumferential surface of the disk (16), and the top blocks (17) are slidably matched with the disk (16) along the radial direction of the disk (16), and the outer ends of the top blocks (17) are The surface is a hemispherical surface, and an elastic member is connected between the top block (17) and the disc (16); a horizontal elastic telescopic rod (18) is fixedly installed on the motor bracket, and a translation plate (19) is fixedly installed at the end of the telescopic section of the elastic telescopic rod (18), and a circular ring (20) is fixedly installed on the side of the translation plate (19) facing the disc (16), and one end surface of the circular ring (20) is a convex arc surface; a bridging block (21) is fixedly installed on the other side of the translation plate (19) through a connecting rod; a power supply and a first conductive rod (22) connected to the power supply are fixedly installed on the motor bracket, and a second conductive rod (23) is fixedly installed on the drive motor (611).

9. The pneumatic conveying device for suspension pesticide raw materials according to claim 8, characterized in that: The top surface of the first conductive rod (22) and the bottom surface of the second conductive rod (23) are both inclined surfaces; the top surface and the bottom surface of the bridging block (21) are respectively adapted to the bottom surface of the second conductive rod (23) and the top surface of the first conductive rod (22); the interior of the bridging block (21) is a conductor, and the outer surface of the bridging block (21) is covered with an insulator.

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