A low-concentration insecticide dehydrated harmful liquid absorption separation device

Abstract

This invention discloses a device for absorbing and separating harmful liquids from low-concentration pesticide dehydration, relating to the field of purification and absorption equipment. It includes a distillation tank and a drain pipe. The distillation tank has a suction pipe and a negative pressure pump. An inlet pipe with guiding components is located outside the distillation tank. Inside the distillation tank is a filter screen with a protective layer filled with activated carbon. A lifting component is located on the protective layer. An absorption component, including an absorption frame with an elastic column in the middle, contains a deformable chamber with movable components. This absorption and separation device, by sequentially designing a filter screen, protective layer, and absorption component within the distillation tank, completes the processes of distillation, filtration, and adsorption. While adsorbing carbon dioxide, the lifting component, in conjunction with the movable component, facilitates the timely dehydration of water remaining in the hollow fiber membrane, thus enabling the absorption of carbon dioxide during the low-concentration dehydration treatment of pesticides.

Description

Technical Field

[0001] This invention relates to the field of purification and separation techniques, specifically to a device for absorbing and separating harmful liquids containing low concentrations of insecticides. Background Technology

[0002] Insecticides are chemical agents used to control pests. If an insecticide has a high water content after preparation, the following consequences will occur: 1. Water will dilute the concentration of the active ingredient, reducing the actual dosage effective against pests and thus lowering the control effect; 2. Water will accelerate the decomposition of the active ingredient, shortening the product's shelf life. For example, abamectin-based insecticides are easily degraded in watery environments; 3. Water may cause the insecticide to form a protective film on the crop surface, hindering adhesion and increasing the risk of being washed away by rain. Therefore, after preparation, insecticides typically undergo low-concentration dehydration treatment to reduce water content and absorb excess harmful gases, thus separating excess liquid and harmful gases.

[0003] Existing methods for dehydrating low-concentration insecticides involve distillation-membrane separation. This involves distilling the insecticide through a distillation tank or column, followed by membrane absorption for dehydration. For insecticides that do not produce carbon dioxide during production, such as cypermethrin, whose gaseous component is cypermethrin vapor, membrane absorption works normally. However, for insecticides that produce carbon dioxide during production, such as trichlorfon, the membrane absorbs the passing substances while trapping water below. When the generated carbon dioxide enters the membrane, it causes membrane expansion, reducing the effective contact area between the membrane and the insecticide. This reduces the dehydration effect of the expanded membrane. Furthermore, the carbon dioxide masks the foul odor of hydrogen sulfide. Excessive carbon dioxide not only damages the membrane's absorption area but also increases the risk of poisoning. Therefore, we propose a new device for absorbing and separating harmful liquids from low-concentration insecticides. Summary of the Invention

[0004] The purpose of this invention is to provide a device for absorbing and separating harmful liquids from low-concentration dehydrated insecticides, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for absorbing and separating low-concentration dehydrated harmful liquids of insecticides, comprising a distillation tank, an externally heated ring for the distillation tank, a conical sleeve at the bottom of the distillation tank with a drain pipe installed on the conical sleeve, an exhaust pipe at the top of the tank lid with a negative pressure pump installed on the exhaust pipe, an externally connected inlet pipe with a guide component installed on the inlet pipe; a filter screen inside the distillation tank with a protective layer filled with activated carbon, a lifting component installed on the top of the protective layer; an absorption component inside the distillation tank, comprising an absorption frame with multiple layers of hollow fiber membranes distributed within the absorption frame, an elastic column in the middle of the absorption frame with a deformation chamber inside the elastic column, a movable component inside the deformation chamber with its bottom in contact with the lifting component; the filter screen is made of a stretchable material and has an arched surface facing the absorption component; the lower part of the absorption component is a conical surface that mates with the arched surface.

[0006] Preferably, the absorption component further includes a filler material filled between adjacent hollow fiber membranes, the filler material having an elastic compression groove, the hollow fiber membranes and the filler material forming an absorber body, the top of the absorber body being a concentric ring, and the bottom of the absorber body being a conical surface, elastic pillars being distributed at the center of the concentric ring, and the outer wall of the concentric ring being connected to the inner wall of the absorption frame, the absorption frame being connected to the inner wall of the distillation tank, and an exhaust component for changing the air permeability of the hollow fiber membrane being provided at the top of the absorber body.

[0007] Preferably, the exhaust component includes a connecting plate installed on the top of the elastic column, the connecting plate being sleeved on the top of the movable component, a plurality of connecting strips being connected to the outside of the connecting plate, a plurality of plug sleeves being installed at the bottom of the connecting strips, the plug sleeves being located at the upper membrane opening position of the hollow fiber membrane, and the plug sleeves being in the form of a stepped shaft.

[0008] Preferably, the diameter of the tube walls at both ends of the deformation chamber is small, and the diameter of the tube wall in the middle is large. A deformation membrane is installed at the bottom of the deformation chamber, and the lifting component is in contact with the deformation membrane. The movable component includes a rotating plate installed on the top of the elastic column, a central shaft is installed on the rotating plate, and the connecting disc is sleeved on the central shaft. Multiple deformation plates are provided at the middle tube wall of the deformation chamber, and the deformation plates are connected to the middle tube wall of the deformation chamber by compression springs. The multiple deformation plates are distributed in a ring outside the central shaft, and adjacent deformation plates are connected by telescopic tubes. A moving component is provided at the lower part of the central shaft, and a slide rail is provided on the inner side of the deformation plate. The moving component includes a slider installed on the slide rail, and the bottom of the moving component is in contact with the lifting component.

[0009] Preferably, the moving component includes a compression shaft disposed at the bottom of the central shaft, a moving sleeve mounted on the top of the compression shaft, and a toggle lever hinged to the outside of the moving sleeve, the toggle lever being hinged to the slider.

[0010] Preferably, the elastic column has an air-filled cavity, which is located in the lower part of the deformable membrane, and the air-filled cavity has a spherical groove in the middle.

[0011] Preferably, the lifting component includes a compression sleeve installed at the bottom of the compression shaft, and the bottom of the compression sleeve is a puncture shaft body installed on the deformation membrane. The inflation chamber contains inflatable bladders, the top of which is provided with a conical colloid and a puncture groove. The middle of the inflatable bladder is a spherical bladder, and the bottom of the spherical bladder is provided with an air guide tube communicating with the coating.

[0012] Preferably, the guiding component includes a flange face installed on the inlet pipe, and a spherical shell is provided on one side of the flange face, and a funnel-shaped air inlet is installed on the top of the spherical shell.

[0013] Preferably, a rotating shaft is installed inside the spherical shell, and multiple dispersing blades are installed on the rotating shaft.

[0014] Preferably, the compression sleeve is conical, and an air-absorbing ellipsoid is installed on the top of the piercing shaft, with an air-absorbing concave surface on the top of the air-absorbing ellipsoid.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention designs a filter screen, a protective layer, and an absorption component sequentially inside a distillation tank. An electrically heated ring on the outside of the tank heats the interior, allowing the pesticide to undergo preliminary filtration, carbon dioxide absorption, and adsorption by the hollow fiber membrane. This completes the distillation, filtration, and adsorption processes. Simultaneously, a lifting and moving component works to adjust the elastic column, facilitating timely dehydration of water remaining in the hollow fiber membrane. This also helps to remove the adsorbed pesticide from the absorption component, enabling the absorption of carbon dioxide during low-concentration pesticide dehydration. This prevents carbon dioxide from interfering with the hollow fiber membrane's absorption of the pesticide during dehydration, thus improving the pesticide absorption efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of a partial cross-section of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the distillation tank after the top cover of the present invention is opened;

[0020] Figure 4 This is a schematic diagram of a partial explosion inside the distillation tank of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the absorption component of the present invention;

[0022] Figure 6 This is a schematic diagram of the exhaust component structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of a partial section of the elastic column of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the inflatable bladder and the puncture shaft of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the moving part of the present invention;

[0026] Figure 10 This is a schematic diagram of a single hollow fiber membrane structure of the present invention;

[0027] Figure 11 for Figure 3 A magnified structural diagram of region A in the middle.

[0028] In the diagram: 1-Distillation tank; 2-Guiding component; 3-Filter screen; 4-Lifting component; 5-Absorption component; 6-Elastic column; 7-Moving component; 8-Exhaust component; 9-Sliding component; 11-Drainage pipe; 12-Suction pipe; 13-Negative pressure pump body; 14-Inlet pipe; 15-Electric heating ring; 21-Flange face; 22-Spherical shell; 23-Functional air inlet; 24-Rotating shaft; 25-Dispersion blade; 31-Covering layer; 41-Compression sleeve; 42-Piercing shaft; 43-Inflating bladder; 44-Conical colloid; 4 5-Piercing groove; 46-Spherical bladder; 47-Gas delivery tube; 48-Inhalation ellipsoid; 49-Inhalation concave surface; 51-Absorption frame; 52-Hollow fiber membrane; 53-Filling material; 54-Elastic compression groove; 61-Deformation chamber; 62-Deformation membrane; 63-Inflation chamber; 71-Rotating plate; 72-Central shaft; 73-Deformation plate; 74-Compression spring; 75-Slide rail; 76-Telescopic tube; 81-Connecting disc; 82-Connecting strip; 83-Plug sleeve; 91-Compression shaft; 92-Moving sleeve; 93-Actuating rod; 94-Slider. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-11This invention provides a technical solution: a device for absorbing and separating harmful liquids of low-concentration insecticide dehydration, comprising a distillation tank 1, an electric heating ring 15 on the outside of the distillation tank 1, which heats the inside of the distillation tank 1, thereby distilling the insecticide introduced into the distillation tank 1. The bottom of the distillation tank 1 is a conical sleeve, and a drain pipe 11 is installed on the conical sleeve. An air extraction pipe 12 is installed at the top of the tank cover of the distillation tank 1, and a negative pressure pump body 13 is installed on the air extraction pipe 12. An inlet pipe 14 is connected to the outside of the distillation tank 1, and a guide component 2 is installed on the inlet pipe 14. The guide component 2 includes a flange face 21 installed on the inlet pipe 14, and a spherical shell 22 is provided on one side of the flange face 21. A funnel-shaped air inlet 23 is installed on the top of the spherical shell 22. The spherical shell 22 is equipped with a rotating shaft 24, and multiple dispersing blades 25 are installed on the rotating shaft 24. After entering the funnel-shaped air inlet 23 from the production pipe, the insecticide moves from the larger end of the pipe to the smaller end, thus causing the insecticide to converge from a dispersed state. When the insecticide comes into contact with the dispersing blades 25, it drives the dispersing blades 25 to rotate the rotating shaft 24, thereby generating airflow, which helps to bring the insecticide into the bottom of the distillation tank 1.

[0031] The distillation tank 1 is equipped with a filter screen 3, which is made of a malleable material and has an arched surface facing the absorption component 5. The lower part of the absorption component 5 is a conical surface that matches the arched surface. The filter screen 3 is covered with a cover layer 31, which is filled with activated carbon. A lifting component 4 is installed on the top of the cover layer 31. The distillation tank 1 is equipped with an absorption component 5, which includes an absorption frame 51. Multiple hollow fiber membranes 52 are distributed within the absorption frame 51. An elastic column 6 is provided in the middle of the absorption frame 51. An air-filling cavity 63 is provided within the elastic column 6 and is located below the deformable membrane 62. The air-filling cavity 63 has a spherical groove in the middle. A deformable chamber 61 is provided inside the elastic column 6. A movable component 7 is provided within the deformable chamber 61, and the bottom of the movable component 7 is in contact with the lifting component 4.

[0032] The absorption component 5 also includes a filler 53 filled between adjacent hollow fiber membranes 52. The filler 53 is provided with an elastic compression groove 54. The elastic compression groove 54 facilitates the shrinkage and deformation of the filler 53, thereby exerting a squeezing effect on the hollow fiber membrane 52. The hollow fiber membrane 52 and the filler 53 form an absorber. The top of the absorber is a concentric ring, and the bottom of the absorber is a conical surface. Elastic pillars 6 are distributed in the center of the concentric ring, and the outer wall of the concentric ring is connected to the inner wall of the absorption frame 51. The absorption frame 51 is connected to the inner wall of the distillation tank 1. The top of the absorber is provided with an exhaust component 8 that changes the air passage of the hollow fiber membrane 52.

[0033] To facilitate the clogging of the top of the hollow fiber membrane 52 and accelerate the discharge of water and filtered pesticides remaining in the hollow fiber membrane 52, an exhaust assembly 8 is used. The exhaust component 8 includes a connecting plate 81 mounted on the top of the elastic column 6. The connecting plate 81 is fitted onto the top of the movable component 7. Multiple connecting strips 82 are connected to the outside of the connecting plate 81. Multiple plug sleeves 83 are installed at the bottom of the connecting strips 82. The plug sleeves 83 are located at the upper membrane opening of the hollow fiber membrane 52 and are stepped shafts. As the central shaft 72 moves upward, it drives the connecting strips 82 upward. The movement causes the plug sleeve 83 to detach upwards from the upper opening of the hollow fiber membrane 52. Since the plug sleeve 83 is stepped and shaft-shaped, meaning that the outer diameter of each plug sleeve 83 is different, the blockage of the hollow fiber membrane 52 varies. When the central shaft 72 falls back, the plug sleeve 83 is pushed back into the upper opening of the hollow fiber membrane 52, thereby releasing a certain amount of airflow from the upper opening of the hollow fiber membrane 52. On the one hand, this helps to blow out the water remaining in the hollow fiber membrane 52 pipe, and on the other hand, it can act on the filter pores on the outer wall of the hollow fiber membrane 52, accelerating the emission of pesticides remaining on the hollow fiber membrane 52.

[0034] The deformation chamber 61 has a smaller diameter tube wall at both ends and a larger diameter tube wall in the middle. A deformation membrane 62 is installed at the bottom of the deformation chamber 61, and the lifting component 4 is in contact with the deformation membrane 62. The movable component 7 includes a rotating plate 71 installed on the top of the elastic column 6, and a central shaft 72 is installed on the rotating plate 71. The connecting plate 81 is sleeved on the central shaft 72. Multiple deformation plates 73 are provided at the middle tube wall of the deformation chamber 61, and the deformation plates 73 are connected to the middle tube wall of the deformation chamber 61 by compression springs 74. The multiple deformation plates 73 are arranged in a ring outside the central shaft 72, and adjacent deformation plates 73 are connected by telescopic tubes 76. A moving component 9 is provided at the lower part of the central shaft 72. A slide rail 75 is provided on the inner side of the deformation plate 73. The moving component 9 includes a slider 94 installed on the slide rail 75, and the bottom of the moving component 9 is in contact with the lifting component 4.

[0035] The moving component 9 includes a compression shaft 91 disposed at the bottom of the central shaft 72, a moving sleeve 92 mounted on the top of the compression shaft 91, and an actuating rod 93 hinged to the outside of the moving sleeve 92, and the actuating rod 93 is hinged to the slider 94.

[0036] The lifting component 4 includes a compression sleeve 41 installed at the bottom of the compression shaft 91, and the bottom of the compression sleeve 41 is a piercing shaft 42, which is installed on the deformable membrane 62. Inflation chambers 63 contain inflatable bladders 43, each with a conical gel 44 at its top and a piercing groove 45 at its top. The middle of each inflatable bladder 43 is a spherical bladder 46, and the bottom of the spherical bladder 46 has an air guide tube 47 communicating with the covering layer 31. The compression sleeve 41 is conical, and the top of the piercing shaft 42 is fitted with an air-absorbing ellipsoid 48, with an air-absorbing concave surface 49 at its top.

[0037] In practical use, the funnel-shaped air inlet 23 is first installed at the discharge position of the insecticide production. After the insecticide production is completed, it enters the funnel-shaped air inlet 23 from the production pipeline. At this time, the insecticide moves from the larger end of the pipe to the smaller end, thus causing the insecticide to form a converged state from a dispersed state. When the insecticide comes into contact with the dispersing blades 25, it drives the dispersing blades 25 to rotate the rotating shaft 24, thereby generating airflow. This facilitates the entry of the insecticide into the bottom of the distillation tank 1. The bottom of the distillation tank 1 is equipped with an electric heating ring 15. The electric heating ring 15 uses an existing electric heating ring with resistance wires distributed inside. When a certain amount of electricity is applied, the resistance wires generate heat, thereby heating and distilling the bottom of the distillation tank 1. The insecticide is introduced from the bottom and distilled at the heated bottom of the distillation tank 1.

[0038] During the distillation process, the pesticide evaporates and floats upwards along the distillation tank 1. Upon contact with the filter screen 3, the filter screen 3 is coated with... Figure 4 As shown, the outer edge is an installation ring installed inside the distillation tank 1. Its filter surface is an extensible arched surface, such as a thin, elastic steel sheet. The filter holes of the filter screen 3 are used to filter other solid impurities mixed in during the pesticide discharge process, thereby maintaining the purity of the pesticide. After preliminary filtration and separation, the pesticide comes into contact with the diaphragm 31, which is filled with activated carbon to absorb the carbon dioxide mixed in the pesticide. During the filtration process through the diaphragm 31, the gas guide pipe 47 located at the top of the diaphragm 31... When the amount of carbon dioxide is large, the carbon dioxide is introduced into the gas delivery tube 47, causing the spherical capsule 46 to contract and deform at the spherical part of the inflation chamber 63. On the one hand, it can absorb excess carbon dioxide. On the other hand, during the inflation of the spherical capsule 46, the gas delivery tube 47 and the spherical capsule 46 move upward in the inflation chamber 63, thereby driving the cover layer 31 to move. This causes the cover layer 31 and the filter screen 3 to separate from each other by a certain gap, thus facilitating the carbon dioxide gas to pass through the filter screen 3 and come into contact with the cover layer 31, which is beneficial for the absorption and treatment of carbon dioxide.

[0039] During the inflation of the spherical capsule 46, the conical gel body 44 at the top of the spherical capsule 46 also moves upwards until it contacts the piercing shaft 42. Because the conical gel body 44 has a piercing groove 45, the spherical capsule 46 continues to push the conical gel body 44 upwards until the piercing shaft 42 penetrates the piercing groove 45 and enters the spherical capsule 46, opening the piercing groove 45. (Before the conical gel body 44 is pierced by the piercing shaft 42, the adhesive force between the gel particles in the conical gel body 44 causes the piercing groove 45 to stick together.) When the needle punctures the drip bottle, dripping occurs. When the needle is withdrawn from the drip bottle, the liquid inside the bottle does not overflow. Although some gas may overflow from the puncture groove 45 in this design, the gas flow rate is small, and the adhesive force between the colloids in the conical colloid 44 itself prevents the gas overflowing from the puncture groove 45 from causing the movement of the spherical capsule 46. The gas inside the spherical capsule 46 is released and returns from the inflation chamber 63 to the covering layer 31. The covering layer 31, which is in contact with the elastic column 6, fully absorbs the overflowed carbon dioxide gas, and at the same time, the covering layer 31 falls back onto the surface of the filter screen 3.

[0040] At the bottom of the distillation tank 1, an electric heating ring 15 maintains a heated environment inside the distillation tank 1, allowing the introduced insecticide to be distilled under heated conditions. At the top of the distillation tank 1, the negative pressure pump 13 is activated, causing the suction pipe 12 to generate negative pressure suction inside the distillation tank 1. The negative pressure pump 13 uses an existing negative pressure pump, which uses negative pressure to suction the gas inside the distillation tank 1. At the same time, the connection between the suction pipe 12 and the distillation tank 1 is a bend with a large pipe diameter, and the pipe connected to the bottom of the suction pipe 12 has a gradually decreasing pipe diameter. This allows the insecticide to be quickly introduced into the insecticide bottle after distillation and filtration, reducing the loss of insecticide during the discharge process.

[0041] The bottom is heated by an electric heating ring 15, which distills the pesticide introduced into the distillation tank. At the same time, the negative pressure generated by the negative pressure pump 13 at the top of the distillation tank 1 absorbs the filtered pesticide when the suction pipe 12 is connected to the top of the distillation tank 1. The pesticide is then connected to the pesticide storage bottle through the bottom of the suction pipe 12.

[0042] During insecticide distillation, filter screen 3 performs preliminary filtration, removing impurities mixed in during the insecticide production process. After passing through filter screen 3, the upper layer 31 of filter screen 3 adsorbs carbon dioxide gas mixed in the insecticide through activated carbon. During the absorption of carbon dioxide gas, the gas enters the spherical capsule 46 through the gas guide tube 47, causing the spherical capsule 46 to expand and deform, pulling the layer 31 away from filter screen 3, creating a certain gap between filter screen 3 and layer 31, which facilitates carbon dioxide absorption. During carbon dioxide absorption, the insecticide gas floats upward through layer 31. Since layer 31 is designed to mimic the shape of filter screen 3, it has an upward arched state. The absorbent body, assembled from multiple layers of hollow fiber membrane 52 and filler 53, has a cone-shaped bottom. Thus, after carbon dioxide removal, the insecticide floats upward and is absorbed by the hollow fiber membrane 52. The hollow fiber membrane 52, as if attached... Figure 10 As shown, the pipe is arranged vertically, and a fine filter hole is provided on the outer wall of the pipe. When the insecticide passes through, the effective part of the insecticide overflows through the filter hole, and the water in the insecticide flows out from top to bottom through the opening of the hollow fiber membrane 52 and is stored at the bottom of the distillation tank 1 through the filter screen 3 at the bottom.

[0043] During carbon dioxide absorption, the spherical capsule 46 expands and deforms, and the conical colloid 44 comes into contact with the puncture shaft 42. Because the conical colloid 44 has a puncture groove 45, the spherical capsule 46 continuously pushes the conical colloid 44 upward until the puncture shaft 42 penetrates the puncture groove 45 and enters the spherical capsule 46. The puncture groove 45 is opened, the gas in the spherical capsule 46 is released, and the suction ellipsoid 48 at the top of the puncture shaft 42 is inserted into the movable sleeve 92. Through the suction concave surface 49, it acts on the movable sleeve 92, causing the movable sleeve 92 to push the compression shaft 91 upward, thereby causing the central shaft 72 to move upward.

[0044] During the upward movement of the central shaft 72, the moving sleeve 92 and the actuating rod 93 are first driven to slide, thereby causing the slider 94 to slide along the slide rail 75. Since the actuating rod 93 and the slider 94 are hinged, during the process of the slider 94 being pushed to slide along the slide rail 75, the force exerted by the actuating rod 93 on the slider 94 has a component perpendicular to the deformable plate 73. This pushes the deformable plate 73 to press against the inner wall of the deformable chamber 61. Since the elastic column 6 is made of elastic material, during the process of the deformable chamber 61 being squeezed outward, the outer wall of the elastic column 6 squeezes the filler 53, thereby causing the hollow fiber membrane 52 to be compressed. On the one hand, the pesticide filtered on the hollow fiber membrane 52 is discharged, and on the other hand, the water remaining at the opening of the hollow fiber membrane 52 is squeezed out. After the gas is discharged from the spherical capsule 46, the punctured shaft 42 falls back. At the same time, the compression spring 74 between the deformable plate 73 and the inner wall of the deformable chamber 61 rebounds, which facilitates the fall of the slider 94 and the moving sleeve 92.

[0045] As the central shaft 72 moves upward, it drives the connecting strip 82 upward, causing the plug sleeve 83 to detach from the upper opening of the hollow fiber membrane 52. Since the plug sleeve 83 is stepped shaft-shaped, meaning that the outer diameter of each plug sleeve 83 is different, the blockage of the hollow fiber membrane 52 varies. When the central shaft 72 falls back, the plug sleeve 83 is pushed back into the upper opening of the hollow fiber membrane 52, thereby releasing a certain amount of airflow from the upper opening of the hollow fiber membrane 52. On the one hand, this helps to blow out the water remaining in the hollow fiber membrane 52 pipe, and on the other hand, it can act on the filter pores on the outer wall of the hollow fiber membrane 52, accelerating the emission of pesticides remaining on the hollow fiber membrane 52.

[0046] After the insecticide is produced, it is guided into the distillation tank 1. After distillation-filtration-adsorption treatment, the dehydrated insecticide is drawn from the top of the distillation tank 1 into the insecticide storage bottle under the action of the negative pressure pump body 13 and the air extraction pipe 12. The water separated from the insecticide is discharged from the bottom of the distillation tank 1 by opening the drain pipe 11.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for absorbing and separating harmful liquids from low-concentration insecticide dehydration, comprising a distillation tank (1), wherein an electrically heated ring (15) is provided outside the distillation tank (1), characterized in that: The bottom of the distillation tank (1) is a conical sleeve, and a drain pipe (11) is installed on the conical sleeve. A suction pipe (12) is installed at the top of the tank cover of the distillation tank (1), and a negative pressure pump body (13) is installed on the suction pipe (12). An inlet pipe (14) is connected to the outside of the distillation tank (1), and a guide component (2) is installed on the inlet pipe (14). The distillation tank (1) is equipped with a filter screen (3) and a cover layer (31) on the filter screen (3). The cover layer (31) is filled with activated carbon. A lifting component (4) is installed on the top of the cover layer (31). The distillation tank (1) is equipped with an absorption component (5). The absorption component (5) includes an absorption frame (51). Multiple hollow fiber membranes (52) are distributed in the absorption frame (51). Filler (53) is filled between adjacent hollow fiber membranes (52). The hollow fiber membranes (52) and the filler (53) form an absorber. An elastic column (6) is provided in the middle of the absorption frame (51). A deformable chamber (61) is provided inside the elastic column (6). A movable component (7) is provided in the deformable chamber (61). The bottom of the movable component (7) is in contact with the lifting component (4). An exhaust component (8) is provided at the top of the absorber to change the air flow of the hollow fiber membrane (52). A deformable membrane (62) is installed at the bottom of the deformable chamber (61), and the lifting component (4) contacts the deformable membrane (62). The movable component (7) includes a rotating plate (71) installed on the top of the elastic column (6), and a central shaft (72) is installed on the rotating plate (71). The exhaust component (8) includes a connecting plate (81) installed on the top of the elastic column (6), and the connecting plate (81) is sleeved on the central shaft (72). Multiple deformable plates (73) are provided at the middle pipe wall of the deformable chamber (61), and the deformable membrane (62) is installed on the elastic column (61). The deformable plate (73) is connected to the middle tube wall of the deformation chamber (61) by a compression spring (74). Multiple deformable plates (73) are arranged in a ring outside the central shaft (72), and adjacent deformable plates (73) are connected by a telescopic tube (76). The lower part of the central shaft (72) is provided with a moving part (9). The inner side of the deformable plate (73) is provided with a slide rail (75). The moving part (9) includes a slider (94) installed on the slide rail (75). The bottom of the moving part (9) is in contact with the lifting part (4). The lifting component (4) includes a compression sleeve (41) and an inflatable bladder (43). The bottom of the compression sleeve (41) is a puncture shaft (42), which is mounted on the deformable membrane (62). The top of the inflatable bladder (43) is provided with a conical colloid (44), and the top of the conical colloid (44) is provided with a puncture groove (45). The middle of the inflatable bladder (43) is a spherical bladder (46), and the bottom of the spherical bladder (46) is provided with an air guide tube (47) that communicates with the covering layer (31). The filter screen (3) is made of a stretchable material and has an arched surface facing the absorption component (5), the lower part of which is a conical surface that mates with the arched surface.

2. The insecticide low-concentration dehydration and harmful liquid absorption and separation device according to claim 1, characterized in that: The filler (53) is provided with an elastic compression groove (54), the top of the absorber is a concentric ring, and the bottom of the absorber is a cone surface. Elastic columns (6) are distributed in the center of the concentric ring, and the outer wall of the concentric ring is connected to the inner wall of the absorber frame (51). The absorber frame (51) is connected to the inner wall of the distillation tank (1).

3. The insecticide low-concentration dehydration and harmful liquid absorption and separation device according to claim 2, characterized in that: The connecting disc (81) is externally connected to multiple connecting strips (82), and multiple plug sleeves (83) are installed at the bottom of the connecting strips (82). The plug sleeves (83) are located at the upper membrane opening of the hollow fiber membrane (52), and the plug sleeves (83) are in the form of a stepped shaft.

4. The insecticide low-concentration dehydration and harmful liquid absorption and separation device according to claim 3, characterized in that: The diameter of the tube wall at both ends of the deformable chamber (61) is small, while the diameter of the tube wall in the middle is large.

5. The insecticide low-concentration dehydration and harmful liquid absorption and separation device according to claim 4, characterized in that: The moving part (9) includes a compression shaft (91) disposed at the bottom of the central shaft (72), a compression sleeve (41) mounted at the bottom of the compression shaft (91), a moving sleeve (92) mounted on the top of the compression shaft (91), and a toggle lever (93) hinged to the outside of the moving sleeve (92), and the toggle lever (93) hinged to the slider (94).

6. The insecticide low-concentration dehydration and harmful liquid absorption and separation device according to claim 5, characterized in that: The elastic column (6) is provided with an inflation cavity (63), and the inflation cavity (63) is distributed in the lower part of the deformable membrane (62). The middle of the inflation cavity (63) is a spherical groove, and the inflation bladder (43) is distributed in the inflation cavity (63).

7. The insecticide low-concentration dehydration and harmful liquid absorption and separation device according to claim 1, characterized in that: The guide component (2) includes a flange face (21) installed on the inlet pipe (14), and a spherical shell (22) is provided on one side of the flange face (21), and a funnel-shaped air inlet (23) is installed on the top of the spherical shell (22).

8. The insecticide low-concentration dehydration and harmful liquid absorption and separation device according to claim 7, characterized in that: The spherical shell (22) has a rotating shaft (24) installed inside, and multiple dispersing blades (25) are installed on the rotating shaft (24).

9. The insecticide low-concentration dehydration harmful liquid absorption and separation device according to claim 1, characterized in that: The compression sleeve (41) is cone-shaped, and an air-absorbing ellipsoid (48) is installed on the top of the piercing shaft (42), and the top of the air-absorbing ellipsoid (48) is provided with an air-absorbing concave surface (49).

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