Pesticide suspending agent grinding and filtering device and method

Abstract

The invention discloses a pesticide suspending agent grinding and filtering device and method, and belongs to the field of grinding devices. The device comprises a machine body, a grinding cylinder is connected to the machine body, a stirring shaft is rotationally connected into the grinding cylinder, the grinding cylinder is transversely placed, a first semicircular cylinder is slidably connected to the bottom wall of the grinding cylinder, a plurality of partition plates are fixedly connected to the bottom wall of the grinding cylinder, the partition plates are attached to the inner wall of the first semicircular cylinder, and a containing cavity used for containing a grinding medium is formed among the partition plates; a spiral cooling flow channel is formed in the wall of the grinding cylinder, when the rotating speed of the stirring shaft is increased, the flow speed and flow of a cooling medium in the spiral cooling flow channel are increased, and the first semicircular cylinder slides, so that the upper part and the side part of the accommodating cavity are opened, and a grinding medium is further released into the grinding cylinder; the device can adjust the number of grinding media according to the grinding progress of the pesticide suspending agent so as to improve the grinding effect.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to a pesticide suspension grinding and filtering device and method. Background Art

[0002] As an important pesticide formulation, pesticide suspension has the advantages of good dispersibility, high efficacy and low environmental pollution, and has been widely used in agricultural production. In the production process of pesticide suspension, grinding and filtration are key links, and their efficiency and quality directly affect the performance and production cost of the product.

[0003] Traditional pesticide suspension grinding and filtering devices have many shortcomings in terms of grinding efficiency. In the early stage of grinding, due to the large particles and serious agglomeration of materials, if the grinding equipment speed is too high, it will lead to excessive equipment load and increased energy consumption. It may also generate too much heat, affecting the stability and performance of the pesticide suspension; while if the speed is too low, it will not be able to effectively break and disperse large particles, the grinding efficiency is low, resulting in long grinding time and reduced production efficiency.

[0004] As the grinding process progresses, the material particles gradually become smaller, and more grinding media are needed to increase the grinding speed. However, the amount of grinding media in traditional devices is difficult to dynamically adjust during the grinding process, and the grinding media cannot be added in time according to the actual grinding conditions of the material, making it difficult to further improve the grinding efficiency. Summary of the invention

[0005] The object of the present invention is to provide a pesticide suspension grinding and filtering device and method, which solves the problem that the number of grinding media in the existing device is difficult to dynamically adjust during the grinding process.

[0006] To achieve the above object, the present invention provides the following technical solution: a pesticide suspension grinding and filtering device, comprising a body, a grinding cylinder connected to the body, a stirring shaft rotatably connected inside the grinding cylinder, the grinding cylinder is placed horizontally, and a first semi-cylinder is slidably connected to the bottom wall of the grinding cylinder, and a plurality of partitions are fixedly connected, the plurality of partitions are in contact with the inner wall of the first semi-cylinder, and a receiving cavity for receiving the grinding medium is formed between the plurality of partitions; A spiral cooling channel is provided in the wall of the grinding cylinder. When the rotation speed of the stirring shaft increases, the flow rate and flow rate of the cooling medium in the spiral cooling channel increase, and the first semi-cylinder slides to open the upper and side portions of the accommodating cavity, thereby further releasing the grinding medium into the grinding cylinder.

[0007] Preferably, a first water pump is fixedly connected to the machine body, a rotating shaft is fixedly connected to the stirring shaft, and a pump shaft of the first water pump is drivingly connected to the rotating shaft; The first water pump is connected to a water inlet pipe and a water outlet pipe, and the water outlet pipe is connected to a plurality of branch pipes in a linear array, and the plurality of branch pipes are all connected to the spiral cooling channel. When the rotation speed of the shaft increases, the plurality of branch pipes are connected to the water outlet pipe in sequence in a direction away from the first water pump, thereby increasing the flow rate and flow rate of the cooling medium in the spiral cooling channel.

[0008] Preferably, a sliding seat is fixedly connected to the grinding cylinder, a rectangular rod is slidably connected inside the sliding seat, valves are provided at the connecting parts of the multiple branch pipes and the water outlet pipes, a gear is fixedly connected to the valve stem of the valve, and teeth cooperating with the multiple gears are provided on the rectangular rod, and when the rotation speed of the rotating shaft increases, the multiple teeth mesh with the corresponding gears in sequence in the direction away from the first water pump.

[0009] Preferably, a circular plate is fixedly connected to the pump shaft, and a plurality of arc-shaped plates are hinged on the circular plate in a ring array, and the ends of the plurality of arc-shaped plates are fixedly connected to sliding rods, and the circular plate is provided with a plurality of arc-shaped sliding grooves cooperating with the plurality of sliding rods, and the plurality of sliding rods and the circular plate are connected with elastic pull ropes at positions close to the circle. When the rotation speed of the pump shaft increases, the plurality of arc-shaped plates can overcome the pulling force of the elastic pull ropes and swing toward the outside of the circular plate, so that the arc-shaped plates can push the rectangular rod to slide in a direction away from the first water pump.

[0010] Preferably, a pin rod is vertically slidably connected to the slide seat, a tension spring is fixedly connected between the pin cap of the pin rod and the slide seat, and a plurality of positioning grooves cooperating with the pin rod are provided in a linear array on the rectangular rod.

[0011] Preferably, the spiral cooling channel is connected to a drain pipe, and the drain pipe is connected to a second water pump. When the rectangular rod slides in a direction away from the first water pump, the pumping speed of the second water pump increases.

[0012] Preferably, a sliding switch for controlling the pumping speed of the second water pump is fixedly connected to the sliding seat, and a sliding piece of the sliding switch is connected to the rectangular rod.

[0013] Preferably, a convex block is provided on the rectangular rod, a slot cooperating with the convex block is provided on the slide, and elastic rubber is filled between the slot and the convex block.

[0014] Preferably, an active cylinder is fixedly connected to the slide seat, a passive cylinder is fixedly connected to the grinding cylinder, an air pipe is connected between the active cylinder and the passive cylinder, and an output end of the passive cylinder is fixedly connected to the first semi-cylinder.

[0015] A method for grinding and filtering a pesticide suspension, applied to a pesticide suspension grinding and filtering device, comprises the following steps: The pesticide suspension to be ground is added into the grinding cylinder, and the stirring shaft rotates to grind the pesticide suspension inside the grinding cylinder in cooperation with the grinding media built into the grinding cylinder; The speed of the stirring shaft is increased from slow to fast. When the speed of the stirring shaft increases, the pump speed of the first water pump connected thereto increases, thereby increasing the flow rate and flow velocity of the cooling medium in the spiral cooling channel, so that the temperature of the pesticide suspension in the grinding cylinder under the rapid stirring and grinding state can be controlled; As the pumping speed of the first water pump increases, multiple branch pipes are sequentially connected to the water outlet pipe in a linear direction, so that the cold zone medium enters from different positions of the spiral cooling channel, thereby improving the heat exchange effect; When the multiple branch pipes are connected to the water outlet pipe, the first semi-cylinder slides to open the upper and side portions of the accommodating chamber, thereby releasing the grinding media in the accommodating chamber. When the rotation speed of the stirring shaft increases, the amount of grinding media in the grinding cylinder increases, further improving the grinding speed. The pesticide suspension that is ground finely in the grinding cylinder is filtered and discharged from the grinding cylinder under the action of centrifugal force.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention increases the grinding speed of the pesticide suspension by controlling the rotation speed of the rotating shaft to gradually increase as the grinding proceeds. While the rotation speed of the rotating shaft increases, the flow rate and flow rate of the cold zone medium in the spiral cooling channel increase synchronously, and the first semi-cylinder slides so that the upper parts and side parts of the plurality of accommodating chambers are opened in sequence, so that the grinding media in the accommodating chambers enter the grinding cylinder to participate in the grinding, thereby increasing the amount of the grinding media, and coordinating the increase and increase rate of the cooling medium in the spiral cooling channel, so that the grinding temperature is controlled while the grinding speed is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the grinding cylinder of the present invention; Figure 3 It is a structural schematic diagram of the stirring shaft of the present invention; Figure 4 It is a structural schematic diagram of the partition of the present invention; Figure 5 It is a structural schematic diagram of the slide seat of the present invention; Figure 6 It is a structural schematic diagram of the sliding rod of the present invention; Figure 7 It is a structural schematic diagram of the curved plate of the present invention; Figure 8 It is a structural schematic diagram of the sliding switch of the present invention.

[0018] In the figure: 100, machine body; 110, first motor; 120, hopper; 130, feed pipe; 140, discharge pipe; 200, grinding cylinder; 210, rotating shaft; 211, stirring shaft; 220, passive cylinder; 230, first semi-cylinder; 240, partition; 250, accommodating chamber; 260, second semi-cylinder; 270, centrifugal filter; 300, first water pump; 301, water inlet pipe; 310, water outlet pipe; 320, branch pipe; 330, valve door; 340, gear; 350, rectangular rod; 351, positioning groove; 352, pin rod; 353, tension spring; 360, pump shaft; 370, round plate; 371, arc-shaped slide groove; 380, arc-shaped plate; 381, slide rod; 382, ​​elastic pull rope; 390, slide seat; 400, second water pump; 410, drain pipe; 420, second motor; 430, sliding switch; 440, slide; 450, bump; 460, active cylinder; 470, air pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Reference Figure 1-Figure 8 The present embodiment provides a technical solution: a pesticide suspension grinding and filtering device, comprising a body 100, a grinding cylinder 200 is connected to the body 100, a stirring shaft 211 is rotatably connected in the grinding cylinder 200, the grinding cylinder 200 is placed horizontally, and a first semi-cylinder 230 is slidably connected to the bottom wall of the grinding cylinder 200, and a plurality of partitions 240 are fixedly connected, the plurality of partitions 240 are fitted with the inner wall of the first semi-cylinder 230, and a receiving chamber 250 for receiving grinding media is formed between the plurality of partitions 240; a spiral cooling channel is opened in the wall of the grinding cylinder 200, when the rotation speed of the stirring shaft 211 increases, the flow rate and flow rate of the cooling medium in the spiral cooling channel increase, and the first semi-cylinder 230 slides, so that the upper part and the side of the receiving chamber 250 are opened, thereby further releasing the grinding media into the grinding cylinder 200.

[0021] The machine body 100 is connected to a first motor 110 for driving the rotating shaft 210 to rotate. The feeding hopper 120 is connected to the machine body 100 and communicated with the grinding cylinder 200 through a feeding pipe 130. The pesticide suspension to be ground is added into the feeding hopper 120 so that the pesticide suspension enters the grinding cylinder 200. The first motor 110 is started to drive the rotating shaft 210 to rotate, so that the stirring shaft 211 connected to the rotating shaft 210 rotates, and the pre-set grinding medium in the grinding cylinder 200 is used to grind and crush the pesticide suspension in the grinding cylinder 200. The grinding medium can be glass beads, zirconium oxide beads, etc.; The initial rotation speed of the rotating shaft 210 is relatively slow, and suitable grinding is provided for the pesticide suspension aggregated in the initial state in the grinding cylinder 200, ensuring that the pesticide suspension is ground without overheating. As the grinding progresses, the control system controls the rotation speed of the rotating shaft 210 to gradually increase, thereby increasing the grinding speed of the pesticide suspension. While the rotation speed of the rotating shaft 210 increases, the flow rate and flow rate of the cold zone medium in the spiral cooling channel increase synchronously, and the first semi-cylinder 230 slides, so that the upper and side portions of the multiple accommodating chambers 250 are opened in sequence, so that the grinding media in the accommodating chambers 250 enter the grinding cylinder 200 to participate in the grinding, increasing the number of grinding media, and cooperating with the increase and increase rate of the cooling medium in the spiral cooling channel, so that the grinding temperature is controlled while the grinding speed is increased; The pesticide suspension in the grinding cylinder 200 generates centrifugal force due to the rotation and grinding action of the stirring shaft 211. The finely ground pesticide suspension is filtered through the centrifugal filter 270 and then discharged and collected through the discharge pipe 140 connected to the centrifugal filter 270.

[0022] Reference Figure 5 A first water pump 300 is fixedly connected to the machine body 100, a rotating shaft 210 is fixedly connected to the stirring shaft 211, and a pump shaft 360 of the first water pump 300 is drivingly connected to the rotating shaft 210; a water inlet pipe 301 and a water outlet pipe 310 are connected to the first water pump 300, and a plurality of branch pipes 320 are connected to the water outlet pipe 310 in a linear array, and the plurality of branch pipes 320 are all connected to the spiral cooling channel. When the rotation speed of the rotating shaft 210 increases, the plurality of branch pipes 320 are connected to the water outlet pipe 310 in sequence in a direction away from the first water pump 300, thereby increasing the flow rate and flow rate of the cooling medium in the spiral cooling channel.

[0023] The first water pump 300 and the rotating shaft 210 are both connected with bevel gears, and the two bevel gears mesh with each other, so that when the rotating speed of the rotating shaft 210 increases, the rotating speed of the first water pump 300 can be driven to increase synchronously, so that the cooling degree can follow the grinding speed. The first water pump 300 extracts cooling medium through the water inlet pipe 301, and sends the cold zone medium into the spiral cooling channel through the water outlet pipe 310 and the branch pipe 320. When the pumping speed of the first water pump 300 increases, the multiple branch pipes 320 are connected to the water outlet pipe 310 in sequence in the arrangement direction away from the first water pump 300, and the branch pipes 320 closest to the first water pump 300 are connected to the water outlet pipe 310 in sequence. The branch pipe 320 of 00 is always connected to the water outlet pipe 310, and this branch pipe 320 is connected to the water inlet end of the spiral cooling channel. As the pumping speed of the first water pump 300 increases, due to the different connection positions of the multiple branch pipes 320 and the spiral cooling channel, cold zone medium can be injected into multiple positions of the spiral cooling channel, so that the pesticide suspension in the middle of the grinding barrel 200 and near its tail end can exchange heat with the cold zone medium just injected into the spiral cooling channel, thereby improving the cooling effect of the pesticide suspension during the rapid grinding process.

[0024] Reference Figure 5 A slide seat 390 is fixedly connected to the grinding cylinder 200, a rectangular rod 350 is slidably connected inside the slide seat 390, valves 330 are provided at the connection positions between the multiple branch pipes 320 and the water outlet pipe 310, a gear 340 is fixedly connected to the valve stem of the valve 330, and teeth cooperating with the multiple gears 340 are provided on the rectangular rod 350. When the rotation speed of the rotating shaft 210 increases, the multiple teeth mesh with the corresponding gears 340 in sequence in the direction away from the first water pump 300.

[0025] The teeth of the rectangular rod 350 near the first water pump 300 are meshed with the corresponding gears 340 in the initial state, and the spacing between the multiple teeth in the direction away from the first water pump 300 and the corresponding gears 340 increases successively, so that when the rectangular rod 350 slides, it can drive the multiple valves 330 in the direction away from the first water pump 300 to open successively, and after the corresponding teeth drive the corresponding gears 340 to rotate so that the corresponding valves 330 are fully opened, the teeth are disengaged from the meshing state with the corresponding gears 340, thereby avoiding interference with the sliding of the rectangular rod 350.

[0026] Reference Figure 5-Figure 7A circular plate 370 is fixedly connected to the pump shaft 360, and a plurality of arc-shaped plates 380 are hinged on the circular plate 370 in a ring array. The ends of the plurality of arc-shaped plates 380 are fixedly connected with sliding rods 381. The circular plate 370 is provided with a plurality of arc-shaped sliding grooves 371 cooperating with the plurality of sliding rods 381. The plurality of sliding rods 381 and the circular plate 370 are connected with elastic pull ropes 382 at positions close to the circles. When the rotation speed of the pump shaft 360 increases, the plurality of arc-shaped plates 380 can overcome the pulling force of the elastic pull ropes 382 and swing toward the outside of the circular plate 370, so that the arc-shaped plates 380 can push the rectangular rod 350 to slide in a direction away from the first water pump 300.

[0027] When the pump shaft 360 rotates, the circular plate 370 fixed thereto is driven to rotate synchronously. As the rotation speed of the pump shaft 360 increases, the centrifugal force on the arc plate 380 hinged on the circular plate 370 increases synchronously, and when the circular plate 370 rotates, the arc plate 380 has a tendency to swing toward the edge of the circular plate 370. When the centrifugal force increases, the arc plate 380 can overcome the pulling force of the elastic pull rope 382 and gradually increase the swing angle. As the swing angle of the arc plate 380 increases, the distance that the arc plate 380 can push the rectangular rod 350 to slide also gradually increases, thereby enabling the first water pump 300 to drive the rectangular rod 350 to slide when the pump speed increases, so that the multiple branch pipes 320 are connected to the water outlet pipe 310 in sequence; In addition, the method in which the arc plate 380 drives the rectangular rod 350 to slide can also be replaced by a method in which a sensor detects the rotation of the pump shaft 360. An electric telescopic rod is arranged on the slide seat 390, so that the output end of the electric telescopic rod is fixedly connected to the rectangular rod 350. After the control system obtains the sensor and detects that the rotation speed of the pump shaft 360 increases, the electric telescopic rod is controlled to extend, so that the electric telescopic rod drives the rectangular rod 350 to slide in a direction away from the first water pump 300.

[0028] Reference Figure 8 A pin rod 352 is vertically slidably connected to the slide seat 390, a tension spring 353 is fixedly connected between the pin cap of the pin rod 352 and the slide seat 390, and a plurality of positioning grooves 351 cooperating with the pin rod 352 are provided in a linear array on the rectangular rod 350.

[0029] To ensure that the position of the rectangular rod 350 is fixed after sliding, when the pump shaft 360 changes from a fixed low speed to a fixed high speed, the swing angle of the arc plate 380 is maintained at a relatively fixed value. To prevent the slight swing of the arc plate 380 from causing the rectangular rod 350 to continue sliding, when the pump shaft 360 increases the speed to a fixed value, the large-angle swing of the arc plate 380 pushes the rectangular rod 350 to slide, so that the pin rod 352 disengages from the current positioning groove 351. As the rectangular rod 350 slides, the pin rod 352 can be inserted into the next positioning groove 351, and the tension applied to the pin rod 352 by the tension spring 353 is combined to ensure the positioning effect of the pin rod 352 on the rectangular rod 350.

[0030] Reference Figure 5 and Figure 8 The spiral cooling channel is connected to a drain pipe 410, and the drain pipe 410 is connected to the second water pump 400. When the rectangular rod 350 slides in a direction away from the first water pump 300, the pumping speed of the second water pump 400 increases.

[0031] As the pumping speed of the first water pump 300 increases, the velocity and flow rate of the cold zone medium in the spiral cooling channel increase, thereby increasing the pressure in the spiral cooling channel. To avoid excessive pressure, the second water pump 400 applies a suction force to the spiral cooling channel through the drain pipe 410, so that the cold zone medium in the spiral cooling channel can be quickly discharged, thereby avoiding the possibility of rupture of the spiral cooling channel due to excessive internal pressure.

[0032] Reference Figure 8 A sliding switch 430 for controlling the pumping speed of the second water pump 400 is fixedly connected to the sliding seat 390 , and a sliding piece 440 of the sliding switch 430 is connected to the rectangular rod 350 .

[0033] The second water pump 400 is driven to rotate by the second motor 420. When the rectangular rod 350 slides, it can drive the slide 440 of the slide switch 430 to slide, so that the slide switch 430 adjusts the rotation speed of the second motor 420 to increase, thereby increasing the pumping speed of the second water pump 400.

[0034] Reference Figure 6-Figure 8 A convex block 450 is provided on the rectangular rod 350 , a slot matching with the convex block 450 is provided on the slide 440 , and elastic rubber is filled between the slot and the convex block 450 .

[0035] The slide 440 has sliding resistance. The setting of the elastic rubber between the protrusion 450 and the slot on the slide 440 enables the protrusion 450 to squeeze the elastic rubber to deform when the rectangular rod 350 slides slightly, so that the protrusion 450 will not drive the slide 440 to slide, thereby ensuring the stability of the rotation speed of the second motor 420.

[0036] Reference Figure 3-Figure 5 An active cylinder 460 is fixedly connected to the slide seat 390 , a passive cylinder 220 is fixedly connected to the grinding cylinder 200 , an air pipe 470 is connected between the active cylinder 460 and the passive cylinder 220 , and an output end of the passive cylinder 220 is fixedly connected to the first semi-cylinder 230 .

[0037] When the rectangular rod 350 slides, it can push the cylinder rod of the active cylinder 460 to shorten. The end of the cylinder rod of the active cylinder 460 is connected to the piston plate. The space between the cylinder rod and the piston plate is connected to the passive cylinder 220 through the air pipe 470. Therefore, when the active cylinder 460 shortens, it can drive the passive cylinder 220 to shorten synchronously. At this time, the passive cylinder 220 drives the first semi-cylinder 230 to slide to release the grinding medium in the accommodating chamber 250. The grinding cylinder 200 is also fixedly connected with a second semi-cylinder 260, the first semi-cylinder 230 slides in the second semi-cylinder 260, the part of the passive cylinder 220 in the grinding cylinder 200 is located in the second semi-cylinder 260, the second semi-cylinder 260, the first semi-cylinder 230 and the partition plate 240 are all made of materials with high hardness and wear resistance, so as to be able to resist the impact of the grinding medium, and the first semi-cylinder 230 and the second semi-cylinder 260 have arc-shaped outer walls, so that the wear and impact amplitude caused by the grinding medium are reduced; A return spring is connected between the cylinder rod and the cylinder body of the active cylinder 460 and / or the passive cylinder 220. When the rotation speed of the pump shaft 360 decreases, the return spring drives the active cylinder 460 or the passive cylinder 220 to reset, thereby resetting the rectangular rod 350. At this time, the rotation speed of the stirring shaft 211 decreases, and the grinding medium can settle to the bottom wall of the horizontally placed grinding cylinder 200. Part of the grinding medium falls into the accommodating chamber 250 between the partitions 240. When the passive cylinder 220 is reset, it drives the first semi-cylinder 230 to slide and reset, so that the grinding medium in the accommodating chamber 250 is collected again to facilitate the next grinding work of the grinding cylinder 200.

[0038] The grinding cylinder 200 may be configured to have a detachable end portion to facilitate emptying of internal residual materials and maintenance of internal components.

[0039] A method for grinding and filtering a pesticide suspension, applied to a pesticide suspension grinding and filtering device, comprises the following steps: The pesticide suspension to be ground is added into the grinding cylinder 200, and the stirring shaft 211 rotates to grind the pesticide suspension inside the grinding cylinder 200 in cooperation with the grinding media built into the grinding cylinder 200; The speed of the stirring shaft 211 is increased from slow to fast. When the speed of the stirring shaft 211 increases, the pump speed of the first water pump 300 connected thereto increases, thereby increasing the flow rate and flow velocity of the cooling medium in the spiral cooling channel, so that the temperature of the pesticide suspension in the grinding cylinder 200 under the rapid stirring and grinding state can be controlled; As the pumping speed of the first water pump 300 increases, the plurality of branch pipes 320 are sequentially connected with the water outlet pipe 310 in a linear direction, so that the cold zone medium enters from different positions of the spiral cooling channel, thereby improving the heat exchange effect; When the multiple branch pipes 320 are connected to the water outlet pipe 310, the first semi-cylinder 230 slides to open the upper part and the side of the accommodating chamber 250, thereby releasing the grinding media in the accommodating chamber 250. When the rotation speed of the stirring shaft 211 increases, the amount of grinding media in the grinding cylinder 200 is increased, further improving the grinding speed. The pesticide suspension ground into fine particles in the grinding cylinder 200 is filtered and discharged from the grinding cylinder 200 under the action of centrifugal force.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pesticide suspension grinding and filtering device, comprising a body (100), characterized in that: A grinding cylinder (200) is connected to the machine body (100), a stirring shaft (211) is rotatably connected inside the grinding cylinder (200), the grinding cylinder (200) is placed horizontally, a first semi-cylinder (230) is slidably connected to the bottom wall of the grinding cylinder (200), and a plurality of partitions (240) are fixedly connected thereto, the plurality of partitions (240) are in contact with the inner wall of the first semi-cylinder (230), and a receiving cavity (250) for receiving a grinding medium is formed between the plurality of partitions (240); A spiral cooling channel is provided in the wall of the grinding cylinder (200); when the rotation speed of the stirring shaft (211) increases, the flow rate and flow rate of the cooling medium in the spiral cooling channel increase, and the first semi-cylinder (230) slides, so that the upper part and the side part of the accommodating cavity (250) are opened, thereby further releasing the grinding medium into the grinding cylinder (200).

2. The pesticide suspension grinding and filtering device according to claim 1, characterized in that: A first water pump (300) is fixedly connected to the machine body (100), a rotating shaft (210) is fixedly connected to the stirring shaft (211), and a pump shaft (360) of the first water pump (300) is drivingly connected to the rotating shaft (210); The first water pump (300) is connected to a water inlet pipe (301) and a water outlet pipe (310); the water outlet pipe (310) is connected to a plurality of branch pipes (320) in a linear array; the plurality of branch pipes (320) are all connected to the spiral cooling channel; when the rotation speed of the rotating shaft (210) increases, the plurality of branch pipes (320) are connected to the water outlet pipe (310) in sequence in a direction away from the first water pump (300), thereby increasing the flow rate and flow rate of the cooling medium in the spiral cooling channel.

3. The pesticide suspension grinding and filtering device according to claim 2, characterized in that: A sliding seat (390) is fixedly connected to the grinding cylinder (200), a rectangular rod (350) is slidably connected inside the sliding seat (390), valves (330) are provided at the connection parts between the plurality of branch pipes (320) and the water outlet pipe (310), a gear (340) is fixedly connected to the valve stem of the valve (330), teeth cooperating with the plurality of gears (340) are provided on the rectangular rod (350), and when the rotation speed of the rotating shaft (210) increases, the plurality of teeth mesh with the corresponding gears (340) in sequence in a direction away from the first water pump (300).

4. The pesticide suspension grinding and filtering device according to claim 3, characterized in that: A circular plate (370) is fixedly connected to the pump shaft (360), and a plurality of arc-shaped plates (380) are hingedly connected to the circular plate (370) in a ring array. The ends of the plurality of arc-shaped plates (380) are fixedly connected to sliding rods (381). The circular plate (370) is provided with a plurality of arc-shaped sliding grooves (371) that cooperate with the plurality of sliding rods (381). The plurality of sliding rods (381) and the circular plate (370) are connected with elastic pull ropes (382) at positions close to the circle. When the rotation speed of the pump shaft (360) increases, the plurality of arc-shaped plates (380) can overcome the pulling force of the elastic pull rope (382) and swing toward the outside of the circular plate (370), so that the arc-shaped plates (380) can push the rectangular rod (350) to slide in a direction away from the first water pump (300).

5. The pesticide suspension grinding and filtering device according to claim 4, characterized in that: A pin rod (352) is vertically slidably connected to the slide seat (390), a tension spring (353) is fixedly connected between the pin cap of the pin rod (352) and the slide seat (390), and a plurality of positioning grooves (351) cooperating with the pin rod (352) are formed in a linear array on the rectangular rod (350).

6. The pesticide suspension grinding and filtering device according to claim 5, characterized in that: The spiral cooling channel is connected to a drain pipe (410), and the drain pipe (410) is connected to a second water pump (400). When the rectangular rod (350) slides in a direction away from the first water pump (300), the pumping speed of the second water pump (400) increases.

7. The pesticide suspension grinding and filtering device according to claim 6, characterized in that: A sliding switch (430) for controlling the pumping speed of the second water pump (400) is fixedly connected to the sliding seat (390), and a sliding sheet (440) of the sliding switch (430) is connected to the rectangular rod (350).

8. The pesticide suspension grinding and filtering device according to claim 7, characterized in that: The rectangular rod (350) is provided with a protrusion (450), the sliding sheet (440) is provided with a slot that matches the protrusion (450), and elastic rubber is filled between the slot and the protrusion (450).

9. The pesticide suspension grinding and filtering device according to claim 8, characterized in that: An active cylinder (460) is fixedly connected to the slide seat (390), a passive cylinder (220) is fixedly connected to the grinding cylinder (200), an air pipe (470) is connected between the active cylinder (460) and the passive cylinder (220), and an output end of the passive cylinder (220) is fixedly connected to the first semi-cylinder (230).

10. A method for grinding and filtering a pesticide suspension, applied to the pesticide suspension grinding and filtering device according to claim 9, characterized in that: The following steps are involved: The pesticide suspension to be ground is added into the grinding cylinder (200), and the stirring shaft (211) rotates to grind the pesticide suspension inside the grinding cylinder (200) in cooperation with the grinding medium built into the grinding cylinder (200); The rotation speed of the stirring shaft (211) is increased from slow to fast. When the rotation speed of the stirring shaft (211) increases, the pump speed of the first water pump (300) connected thereto increases, thereby increasing the flow rate and flow rate of the cooling medium in the spiral cooling channel, so that the temperature of the pesticide suspension in the grinding cylinder (200) can be controlled in a fast stirring and grinding state; As the pumping speed of the first water pump (300) increases, the plurality of branch pipes (320) are sequentially connected to the water outlet pipe (310) in a linear direction, so that the cold zone medium enters from different positions of the spiral cooling channel, thereby improving the heat exchange effect; When the plurality of branch pipes (320) are connected to the water outlet pipe (310), the first semi-cylinder (230) slides to open the upper portion and the side portion of the accommodating chamber (250), thereby releasing the grinding media in the accommodating chamber (250). When the rotation speed of the stirring shaft (211) increases, the amount of grinding media in the grinding cylinder (200) is increased, thereby further improving the grinding speed. The pesticide suspension that has been ground and refined in the grinding cylinder (200) is filtered under the action of centrifugal force and discharged from the grinding cylinder (200).

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