Impurity extraction machine for biochemical pesticide preparation

Abstract

The invention discloses an impurity extraction machine for biochemical pesticide preparation, which comprises a collection tank for collecting pesticide liquid from which medicine residues are separated through the collection tank, and a material taking port arranged at one side of the collection tank, and the bottom of the collection tank is communicated with a liquid discharge pipe; the fixing frame is provided with a fixing sleeve and a supporting seat arranged at the bottom of the fixing sleeve; the top of the top plate is fixedly connected with a driving motor; the separating device is used for separating the pesticide liquid from medicine residues in the pesticide liquid through centrifugal force; the fixing frame is arranged on the outer side of the collecting tank in a sleeving mode and fixedly connected with the outer wall of the collecting tank, the bottom of the top plate is fixedly connected with the top of the collecting tank through a support, and the separating device is arranged in the collecting tank. According to the impurity extraction machine for preparing the biochemical pesticide, liquid medicine contained in medicine residues can be squeezed out, and waste of the liquid medicine is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide preparation, and particularly to an impurity extractor for the preparation of biochemical pesticides. Background Art

[0002] Pesticides are defined in a broad sense as substances or mixtures of several substances and their preparations that are used to prevent, eliminate, or control diseases, insects, weeds, and other pests harmful to agriculture and forestry, and that are purposefully used to regulate, control, and affect the metabolism, growth, development, and reproduction processes of plants and pests. Narrowly defined, pesticides refer to a class of drugs used in agricultural production to ensure and promote the growth of plants and crops, and specifically refer to drugs used in agriculture to control diseases and insects, as well as to regulate plant growth, remove weeds, etc. During the production process of pesticides, impurities are contained in the pesticides, and an extraction device is needed to filter and extract the impurities from the pesticides for impurity removal treatment.

[0003] Existing devices cannot fully squeeze out the liquid medicine contained in the residue when extracting the residue in the liquid medicine, which easily causes waste of pesticide liquid during the process of extracting impurities and has a low processing efficiency. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an impurity extractor for the preparation of biochemical pesticides, including: A collection tank for collecting the pesticide liquid from which the residue has been separated, and a material taking port provided on one side of the collection tank. A drain pipe is connected to the bottom of the collection tank; A fixing frame having a fixing sleeve and a support base provided at the bottom of the fixing sleeve; A top plate, with a driving motor fixedly connected to the top of the top plate; A separation device that separates the pesticide liquid from the residue inside it by centrifugal force; The fixing frame is sleeved outside the collection tank and fixedly connected to the outer wall of the collection tank. The bottom of the top plate is fixedly connected to the top of the collection tank through a bracket. The separation device is arranged inside the collection tank, and one end of the separation device is fixedly connected to the driving motor; Among them, the separation device includes: A reinforcing plate having an arc-shaped plate structure and annular sleeves provided at both ends of the reinforcing plate. A discharge frame is fixedly connected to one side of the reinforcing plate; A filter screen for intercepting the residue inside the pesticide liquid; A feed pipe, the bottom of which penetrates through the annular sleeve at the top of the reinforcing plate and is fixedly connected to the inner wall of the annular sleeve.

[0005] Preferably, a plurality of reinforcing plates and filter nets are provided and are staggered. The bottom of the feed pipe penetrates through the top of the collection tank and is rotatably connected to the top of the collection tank through a sealing bearing. Both sides of the filter net are fixedly connected to the side surfaces of the reinforcing plates. Both ends of the filter net are fixedly connected to the outer side of the annular sleeve. Both ends of the reinforcing plates are fixedly connected to the outer side of the annular sleeve. The top of the feed pipe is fixedly connected to the output end of the driving motor, and the output end of the driving motor penetrates through the top plate and is rotatably connected to the top plate.

[0006] Preferably, the separation device further includes an air inlet pipe. The bottom of the air inlet pipe is communicated with a two-way air pump, and the air outlet end of the two-way air pump is communicated with the air inlet pipe. When the filter net rotates, the pesticide liquid is thrown out by centrifugal force, so that the residues contained in the liquid medicine remain inside the filter net, and the thrown-out liquid medicine enters the collection tank and finally is discharged from the liquid discharge pipe. The medicinal residues are collected inside the filter net. Finally, the material taking port and the discharge frame are opened to take out the medicinal residues inside the filter net, so that the medicinal residues in the liquid medicine can be extracted and separately collected. An extrusion device is installed at the top of the air inlet pipe.

[0007] Preferably, one end of the air inlet pipe away from the two-way air pump penetrates through the annular sleeve at the bottom of the reinforcing plate and is rotatably connected to the inner wall of the annular sleeve through a sealing bearing. One end of the air inlet pipe close to the two-way air pump penetrates through the collection tank and is fixedly connected to the bottom of the collection tank. The outer wall of the two-way air pump is fixedly connected to the bottom of the collection tank.

[0008] Preferably, the extrusion device includes a spherical shell. An air inflation port is provided on the outer wall of the spherical shell, and a rubber air cushion is fixedly connected to the inner wall of the air inflation port. The gas in the spherical shell enters the air inflation port and continuously squeezes the rubber air cushion. Since the rubber air cushion is made of an elastic material, the air pressure in the spherical shell continuously increases and squeezes the rubber air cushion outwards. The rubber air cushion continuously expands and pushes the pressing plate. The expanding rubber air cushion gradually pushes the medicinal residues to one side of the filter net and continuously squeezes the medicinal residues, squeezing out the liquid medicine contained in the medicinal residues and avoiding waste of the liquid medicine. A stirring device is installed on the outer wall of the spherical shell. An arc-shaped limiting plate is fixedly connected to the outer wall of the spherical shell near the air inflation port. Two groups of arc-shaped limiting plates are provided and are symmetrically distributed on both sides of the air inflation port. The side of the arc-shaped limiting plate away from the spherical shell is fixedly connected to the pressing plate through a return spring. A brush plate is installed on the side of the pressing plate away from the return spring. A brush head is fixedly connected to the side of the brush plate away from the pressing plate. The rubber air cushion pushes the pressing plate to move, and the pressing plate pulls the return spring to make it elongate. The pressing plate moves and drives the brush plate to press against one side of the filter net. As the filter net rotates, the brush plate can clean the inner side of the filter net through the brush head, avoiding the problem that too many impurities accumulate on one side of the filter net and affecting the separation of the liquid medicine.

[0009] Preferably, a plurality of air inlets are provided and evenly distributed on the outer side of the spherical shell. The bottom of the spherical shell is communicated with the top of the air inlet pipe, and the stirring device is distributed in a staggered manner with the air inlets.

[0010] Preferably, a plurality of pressing plates are provided and evenly distributed on one side of the rubber air cushion. A plurality of brush heads with brushes are provided and evenly distributed on the brush plate.

[0011] Preferably, the stirring device includes a rotating column. Both ends of the rotating column are rotatably connected to positioning plates through bearings. A rotating spoon is fixedly connected to the middle position on the outer side of the rotating column. Stirring rods are symmetrically installed on both sides of the rotating spoon on the outer side of the rotating column. When the filter net rotates, the liquid medicine and residue inside it rotate with the filter net. During the rotation, the liquid medicine and residue push the rotating spoon to rotate around the axis of the rotating column. The rotating spoon drives the rotating column to rotate, and the rotating column drives the stirring rods to stir the residue, improving the efficiency of liquid separation.

[0012] Preferably, one end of the positioning plate away from the rotating column is fixedly connected to the outer wall of the spherical shell. A plurality of rotating spoons and stirring rods are provided and evenly distributed on the rotating column.

[0013] The present invention provides an impurity extractor for the preparation of biochemical pesticides. It has the following beneficial effects: 1. For this impurity extractor for the preparation of biochemical pesticides, through the installation of the extrusion device, the gas in the spherical shell enters the air inlet and continuously squeezes the rubber air cushion. Since the rubber air cushion is made of elastic material, the air pressure in the spherical shell continuously increases and squeezes the rubber air cushion outward. The rubber air cushion continuously expands and pushes the pressing plate. The expanded rubber air cushion gradually pushes the residue to one side of the filter net and continuously squeezes the residue, squeezing out the liquid medicine contained in the residue and avoiding waste of the liquid medicine.

[0014] 2. For this impurity extractor for the preparation of biochemical pesticides, through the installation of the separation device, when the filter net rotates, the centrifugal force throws out the pesticide liquid, leaving the residue contained in the liquid medicine inside the filter net. The thrown-out liquid medicine enters the collection tank and finally discharges from the drain pipe. The residue remains in the filter net for collection. Finally, open the material taking port and the discharge frame to take out the residue inside the filter net, and the residue in the liquid medicine can be extracted and separately collected.

[0015] 3. For this impurity extractor for the preparation of biochemical pesticides, through the installation of the rubber air cushion and the brush plate, the rubber air cushion pushes the pressing plate to move. The pressing plate pulls the return spring to make it elongate. The pressing plate moves and drives the brush plate to press tightly against one side of the filter net. As the filter net rotates, the brush plate can clean the inner side of the filter net through the brush heads with brushes, avoiding the problem that too much impurity accumulates on one side of the filter net and affecting liquid separation.

[0016] 4. This impurity extractor for preparing biochemical pesticides is installed with a stirring device. When the filter screen rotates, the liquid medicine and the residue inside it rotate with the filter screen. During the rotation, the liquid medicine and the residue push the rotating spoon to rotate around the axis of the rotating column. The rotating spoon drives the rotating column to rotate, and the rotating column drives the toggle rod to toggle the residue, thereby improving the efficiency of liquid medicine separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of an impurity extractor for preparing biochemical pesticides of the present invention; Figure 2 This is a schematic diagram of the internal structure of the collecting tank of the present invention; Figure 3 It is a structural schematic diagram of the reinforcement plate of the present invention; Figure 4 It is a schematic diagram of the structure of the air intake pipe of the present invention; Figure 5 It is a schematic diagram of the structure of the spherical shell of the present invention; Figure 6 It is a schematic diagram of the structure of the rubber air cushion of the present invention; Figure 7 It is a structural schematic diagram of the arc-shaped limiting plate of the present invention; Figure 8 It is a structural schematic diagram of the brush plate of the present invention; Figure 9 It is a structural schematic diagram of the rotary spoon of the present invention.

[0018] In the figure: 1. collecting tank; 2. feeding port; 3. drain pipe; 4. fixing frame; 5. top plate; 6. driving motor; 7. separating device; 71. reinforcing plate; 72. annular sleeve; 73. discharge frame; 74. filter screen; 75. feeding pipe; 76. air inlet pipe; 77. two-way air pump; 78. extrusion device; 781. ball shell; 782. inflation port; 783. rubber air cushion; 784. stirring device; 7841. rotating column; 7842. positioning plate; 7843. rotating spoon; 7844. toggle rod; 785. arc limit plate; 786. reset spring; 787. tightening plate; 788. brush plate; 789. brush head with hair. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0020] First Embodiment, please refer to Figures 1 - 4 , the present invention provides a technical solution: an impurity extractor for preparing biochemical pesticides, comprising: A collection tank 1 for collecting the pesticide liquid from which the dregs have been separated, and a material taking port 2 provided on one side of the collection tank 1. A drain pipe 3 is connected to the bottom of the collection tank 1; A fixing frame 4 having a fixing sleeve and a support base provided at the bottom of the fixing sleeve; A top plate 5, and a driving motor 6 is fixedly connected to the top of the top plate 5; A separation device 7 that separates the pesticide liquid from the dregs inside it by centrifugal force; The fixing frame 4 is sleeved outside the collection tank 1 and fixedly connected to the outer wall of the collection tank 1. The bottom of the top plate 5 is fixedly connected to the top of the collection tank 1 through a bracket. The separation device 7 is arranged inside the collection tank 1, and one end of the separation device 7 is fixedly connected to the driving motor 6; Among them, the separation device 7 includes: A reinforcement plate 71 having an arc-shaped plate structure and annular sleeves 72 provided at both ends of the reinforcement plate 71. A discharge frame 73 is fixedly connected to one side of the reinforcement plate 71; A filter screen 74 for intercepting the dregs inside the pesticide liquid; A feed pipe 75, the bottom of the feed pipe 75 penetrates through the annular sleeve 72 at the top of the reinforcement plate 71 and is fixedly connected to the inner wall of the annular sleeve 72.

[0021] Both the reinforcement plate 71 and the filter screen 74 are provided in multiple groups and are staggered. The bottom of the feed pipe 75 penetrates through the top of the collection tank 1 and is rotatably connected to the top of the collection tank 1 through a sealing bearing. Both sides of the filter screen 74 are fixedly connected to the side surface of the reinforcement plate 71. Both ends of the filter screen 74 are fixedly connected to the outside of the annular sleeve 72. Both ends of the reinforcement plate 71 are fixedly connected to the outside of the annular sleeve 72. The top of the feed pipe 75 is fixedly connected to the output end of the driving motor 6, and the output end of the driving motor 6 penetrates through the top plate 5 and is rotatably connected to the top plate 5.

[0022] The separation device 7 further includes an air inlet pipe 76. The bottom of the air inlet pipe 76 is connected to a two-way air pump 77. The air outlet end of the two-way air pump 77 is connected to the air inlet pipe 76, and an extrusion device 78 is installed at the top of the air inlet pipe 76.

[0023] One end of the air inlet pipe 76 away from the two-way air pump 77 penetrates through the annular sleeve 72 at the bottom of the reinforcement plate 71 and is rotatably connected to the inner wall of the annular sleeve 72 through a sealing bearing. One end of the air inlet pipe 76 close to the two-way air pump 77 penetrates through the collection tank 1 and is fixedly connected to the bottom of the collection tank 1. The outer wall of the two-way air pump 77 is fixedly connected to the bottom of the collection tank 1.

[0024] In use, pour the chemical pesticide that needs to filter impurities into the filter net 74 from the feed pipe 75. Then, start the driving motor 6 to drive the feed pipe 75 to rotate. The feed pipe 75 drives the reinforcement plate 71 and the filter net 74 to rotate through the annular sleeve 72. When the filter net 74 rotates, the pesticide liquid is thrown out by centrifugal force, so that the residue contained in the liquid medicine remains inside the filter net 74, and the thrown liquid medicine enters the collection tank 1 and finally discharges from the drain pipe 3. The dregs are left in the filter net 74 for collection. Finally, open the material taking port 2 and the discharge frame 73 to take out the dregs inside the filter net 74, and the dregs in the liquid medicine can be extracted and separately collected.

[0025] For the second embodiment, please refer to Figures 1 - 8 In addition, the present invention provides a technical solution: on the basis of the first embodiment, the extrusion device 78 includes a spherical shell 781. An air inlet 782 is opened on the outer wall of the spherical shell 781. A rubber air cushion 783 is fixedly connected to the inner wall of the air inlet 782. A stirring device 784 is installed on the outer wall of the spherical shell 781. An arc-shaped limiting plate 785 is fixedly connected to the outer wall of the spherical shell 781 near the air inlet 782. There are two groups of arc-shaped limiting plates 785 and they are symmetrically distributed on both sides of the air inlet 782. A pressing plate 787 is fixedly connected to the side of the arc-shaped limiting plate 785 away from the spherical shell 781 through a return spring 786. A brush plate 788 is installed on the side of the pressing plate 787 away from the return spring 786. A brush head 789 is fixedly connected to the side of the brush plate 788 away from the pressing plate 787.

[0026] There are multiple groups of air inlets 782 and they are evenly distributed on the outside of the spherical shell 781. The bottom of the spherical shell 781 is communicated with the top of the air inlet pipe 76. The stirring device 784 and the air inlet 782 are staggered.

[0027] There are multiple groups of pressing plates 787 and they are evenly distributed on one side of the rubber air cushion 783. There are multiple groups of brush heads 789 and they are evenly distributed on the brush plate 788.

[0028] In use, as the filter net 74 rotates continuously, the liquid medicine inside the filter net 74 decreases continuously. At this time, start the two-way air pump 77 to pump external gas into the air inlet pipe 76. The gas enters the spherical shell 781 through the air inlet pipe 76. The gas in the spherical shell 781 enters the air inlet 782 and continuously squeezes the rubber air cushion 783. Since the rubber air cushion 783 is made of elastic material, the air pressure in the spherical shell 781 increases continuously and squeezes the rubber air cushion 783 outwards. The rubber air cushion 783 expands continuously and pushes the pressing plate 787. The expanded rubber air cushion 783 gradually pushes the dregs to one side of the filter net 74 and continuously squeezes the dregs, squeezing out the liquid medicine contained in the dregs and avoiding waste of the liquid medicine.

[0029] As the rubber air cushion 783 expands, the rubber air cushion 783 pushes the pressing plate 787 to move. The pressing plate 787 pulls the return spring 786 to make it stretch. The pressing plate 787 moves and drives the brush plate 788 to press against one side of the filter net 74. As the filter net 74 rotates, the brush plate 788 can clean the inner side of the filter net 74 through the brush head 789, which can avoid the problem that too much impurities accumulate on one side of the filter net 74 and affect the liquid medicine separation.

[0030] For the third embodiment, please refer to Figures 1 - 9 , the present invention provides a technical solution: on the basis of the second embodiment, the stirring device 784 includes a rotating column 7841. Both ends of the rotating column 7841 are rotatably connected to positioning plates 7842 through bearings. A rotating spoon 7843 is fixedly connected to the outer side of the rotating column 7841 at the middle position. Stirring rods 7844 are symmetrically installed on both sides of the rotating spoon 7843 on the outer side of the rotating column 7841.

[0031] One end of the positioning plate 7842 away from the rotating column 7841 is fixedly connected to the outer wall of the spherical shell 781. Multiple groups of the rotating spoons 7843 and the stirring rods 7844 are provided and evenly distributed on the rotating column 7841.

[0032] During use, when the filter net 74 rotates, the liquid medicine and the medicinal residues inside it rotate together with the filter net 74. During the rotation process, the liquid medicine and the medicinal residues push the rotating spoon 7843 to rotate around the axis of the rotating column 7841. The rotating spoon 7843 drives the rotating column 7841 to rotate, and the rotating column 7841 drives the stirring rods 7844 to stir the medicinal residues, improving the efficiency of liquid medicine separation.

[0033] Working principle: The operator pours the chemical pesticide that needs to be filtered into the filter screen 74 from the feed pipe 75, and then turns on the drive motor 6 to drive the feed pipe 75 to rotate. The feed pipe 75 drives the reinforcement plate 71 and the filter screen 74 to rotate through the annular sleeve 72. When the filter screen 74 rotates, the pesticide liquid is thrown out by centrifugal force, so that the residue contained in the liquid remains on the inside of the filter screen 74. As the filter screen 74 continues to rotate, the liquid and the pesticide inside the filter screen 74 are The residue rotates with the filter screen 74. The liquid medicine and the residue push the rotating spoon 7843 to rotate around the axis of the rotating column 7841 during the rotation process. The rotating spoon 7843 drives the rotating column 7841 to rotate. The rotating column 7841 drives the toggle rod 7844 to toggle the residue. The liquid medicine inside the filter screen 74 is constantly reduced. At this time, the two-way air pump 77 is turned on to draw external gas into the air inlet pipe 76, and enters the ball shell 781 through the air inlet pipe 76. The gas in the ball shell 781 enters the filling The rubber cushion 783 is squeezed in the air port 782. Since the rubber cushion 783 is made of elastic material, the air pressure in the ball shell 781 increases continuously to squeeze the rubber cushion 783 outward. The rubber cushion 783 expands continuously and pushes the top plate 787. The expanded rubber cushion 783 gradually pushes the medicine residue to the side of the filter screen 74 and continuously squeezes the medicine residue to squeeze out the liquid medicine contained in the medicine residue. The thrown liquid medicine enters the collection tank 1 and is finally discharged from the drain pipe 3. The medicine residue remains in the filter screen 74. The residue is collected in the filter screen 74, and finally the material taking port 2 and the discharge frame 73 are opened to take out the residue on the inside of the filter screen 74. As the rubber air cushion 783 expands, the rubber air cushion 783 pushes the tightening plate 787 to move, and the tightening plate 787 pulls the reset spring 786 to stretch it. The tightening plate 787 moves and drives the brush plate 788 to tighten against one side of the filter screen 74. As the filter screen 74 rotates, the brush plate 788 can clean the inside of the filter screen 74 through the bristle brush head 789.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An impurity extractor for preparing biochemical pesticides, characterized in that: include: A collecting tank (1) for collecting the pesticide liquid separated from the drug residue, and a material taking port (2) provided on one side of the collecting tank (1), wherein the bottom of the collecting tank (1) is connected to a liquid discharge pipe (3); A fixing frame (4), the fixing frame (4) comprising a fixing sleeve and a supporting seat arranged at the bottom of the fixing sleeve; A top plate (5), the top of the top plate (5) being fixedly connected to a driving motor (6); A separation device (7), wherein the separation device (7) separates the pesticide liquid from the pesticide residue inside the pesticide liquid by centrifugal force; The fixing frame (4) is sleeved on the outside of the collecting tank (1) and fixedly connected to the outer wall of the collecting tank (1); the bottom of the top plate (5) is fixedly connected to the top of the collecting tank (1) via a bracket; the separating device (7) is arranged inside the collecting tank (1); one end of the separating device (7) is fixedly connected to the driving motor (6); Wherein, the separation device (7) comprises: A reinforcing plate (71), the reinforcing plate (71) having an arc-shaped plate structure, and an annular sleeve (72) arranged at both ends of the reinforcing plate (71), and a discharge frame (73) is fixedly connected to one side of the reinforcing plate (71); A filter screen (74) is used to intercept the pesticide residue inside the pesticide liquid; A feed pipe (75), wherein the bottom of the feed pipe (75) passes through the annular sleeve (72) at the top of the reinforcing plate (71) and is fixedly connected to the inner wall of the annular sleeve (72).

2. The impurity extractor for preparing biochemical pesticides according to claim 1, characterized in that: The reinforcing plate (71) and the filter screen (74) are provided in multiple groups and are staggeredly distributed; the bottom of the feed pipe (75) passes through the top of the collection tank (1) and is rotatably connected to the top of the collection tank (1) via a sealing bearing; both sides of the filter screen (74) are fixedly connected to the side surfaces of the reinforcing plate (71); both ends of the filter screen (74) are fixedly connected to the outside of the annular sleeve (72); both ends of the reinforcing plate (71) are fixedly connected to the outside of the annular sleeve (72); the top of the feed pipe (75) is fixedly connected to the output end of the drive motor (6); the output end of the drive motor (6) passes through the top plate (5) and is rotatably connected to the top plate (5).

3. The impurity extractor for preparing biochemical pesticides according to claim 1, characterized in that: The separation device (7) further comprises an air inlet pipe (76), the bottom of the air inlet pipe (76) being connected to a two-way air pump (77), the air outlet end of the two-way air pump (77) being connected to the air inlet pipe (76), and the top of the air inlet pipe (76) being provided with an extrusion device (78).

4. The impurity extractor for preparing biochemical pesticides according to claim 3, characterized in that: One end of the air inlet pipe (76) away from the two-way air pump (77) passes through the annular sleeve (72) at the bottom of the reinforcing plate (71) and is rotatably connected to the inner wall of the annular sleeve (72) via a sealing bearing; one end of the air inlet pipe (76) close to the two-way air pump (77) passes through the collecting tank (1) and is fixedly connected to the bottom of the collecting tank (1); and the outer wall of the two-way air pump (77) is fixedly connected to the bottom of the collecting tank (1).

5. The impurity extractor for preparing biochemical pesticides according to claim 3, characterized in that: The squeezing device (78) comprises a spherical shell (781), the outer wall of the spherical shell (781) is provided with an air filling port (782), the inner wall of the air filling port (782) is fixedly connected to a rubber air cushion (783), the outer wall of the spherical shell (781) is installed with a stirring device (784), the outer wall of the spherical shell (781) is fixedly connected to an arc-shaped limit plate (785) at a position close to the air filling port (782), two groups of the arc-shaped limit plates (785) are provided and symmetrically distributed on both sides of the air filling port (782), the side of the arc-shaped limit plate (785) away from the spherical shell (781) is fixedly connected to a tightening plate (787) via a return spring (786), the side of the tightening plate (787) away from the return spring (786) is installed with a brush plate (788), and the side of the brush plate (788) away from the tightening plate (787) is fixedly connected to a brush head (789) with bristles.

6. The impurity extractor for preparing biochemical pesticides according to claim 5, characterized in that: The inflation ports (782) are provided in multiple groups and are evenly distributed on the outside of the spherical shell (781); the bottom of the spherical shell (781) is connected to the top of the air inlet pipe (76); and the stirring device (784) and the inflation ports (782) are staggered.

7. The impurity extractor for preparing biochemical pesticides according to claim 5, characterized in that: The tightening plates (787) are provided in multiple groups and are evenly distributed on one side of the rubber air cushion (783), and the bristle brush heads (789) are provided in multiple groups and are evenly distributed on the brush plate (788).

8. The impurity extractor for preparing biochemical pesticides according to claim 5, characterized in that: The stirring device (784) comprises a rotating column (7841), both ends of which are rotatably connected to positioning plates (7842) via bearings, a rotating spoon (7843) is fixedly connected to the outside of the rotating column (7841) at a middle position, and toggle rods (7844) are symmetrically mounted on both sides of the rotating spoon (7843) on the outside of the rotating column (7841).

9. The impurity extractor for preparing biochemical pesticides according to claim 8, characterized in that: One end of the positioning plate (7842) away from the rotating column (7841) is fixedly connected to the outer wall of the spherical shell (781), and multiple groups of the rotating spoons (7843) and the toggle rods (7844) are arranged and evenly distributed on the rotating column (7841).

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