A liquid purification system and method for producing pesticides

Abstract

The present invention provides a liquid purification system and method for insecticide production, which belongs to the field of wastewater treatment technology, and comprises a cylinder, a cover plate is installed on the upper end of the cylinder, a wastewater heating unit and a wastewater sterilization unit are installed on the cover plate, a wastewater input pipe is connected to the cover plate, the other end of the wastewater input pipe is connected to a uniform drug adding unit, the other end of the uniform drug adding unit is connected to a wastewater filtration unit, the other end of the wastewater filtration unit is connected to a connecting flange, the side of the upper end of the cylinder and the side of the cover plate are both fixedly connected to a connecting plate, a pair of connecting plates facing each other are fixedly connected to connecting columns, and a pair of connecting columns facing each other are connected via a pair of connecting modules. The present invention solves the problem that the existing wastewater treatment device for insecticide production, the wastewater treatment cylinder of the device is an integral structure, which cannot be opened, and is very inconvenient to clean, and the cleaning effect of the wastewater treatment cylinder cannot be guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a liquid purification system and method for producing pesticides. Background Art

[0002] Pesticide refers to a kind of agent that kills pests, such as beetles, flies, grubs, snout bugs, springtails and nearly 10,000 other pests. The use of pesticides has gone through several stages: the earliest discovered were natural pesticides and inorganic compounds, but they have a single effect, large dosage and short duration; organic synthetic pesticides such as organochlorine, organophosphorus and carbamate are characterized by high efficiency and high residue or low residue, and many of them have high acute toxicity to mammals. In the production process of pesticides, a large amount of wastewater is often produced, which needs to be purified before discharge.

[0003] Prior art CN221141352U discloses a wastewater treatment device for pesticide production, comprising a wastewater treatment cylinder, a support frame is fixedly sleeved on the outer wall of the wastewater treatment cylinder, auxiliary treatment mechanisms are arranged on the top and inner wall of the wastewater treatment cylinder, and a wastewater input mechanism is arranged on the top of the wastewater treatment cylinder; the auxiliary treatment mechanism comprises a wastewater heating unit and a wastewater sterilization unit, and the wastewater input mechanism comprises a uniform drug adding unit and a wastewater filtering unit; the wastewater heating unit comprises a driving motor, the driving motor is fixedly mounted on the top of the wastewater treatment cylinder, the output shaft of the driving motor extends into the inner cavity of the wastewater treatment cylinder and is fixedly connected with a rotating shaft, a stirring blade is fixedly mounted on the outer wall of the rotating shaft, a sealed copper cylinder is fixedly mounted on the inner wall of the stirring blade, a heating wire is fixedly mounted on the inner wall of the sealed copper cylinder, a temperature controller is fixedly mounted on the bottom of the rotating shaft, and the rotating stirring blade can perform internal circulation mixing treatment on the wastewater. The wastewater treatment cylinder of the device is an integral structure and cannot be opened, which makes it very inconvenient to clean and also cannot ensure the cleaning effect of the wastewater treatment cylinder. Summary of the invention

[0004] The present invention provides a liquid purification system and method for pesticide production, which aims to solve the problem that the wastewater treatment cylinder of the existing pesticide production wastewater treatment device is an integral structure and cannot be opened, which is very inconvenient to clean and the cleaning effect of the wastewater treatment cylinder cannot be guaranteed.

[0005] An embodiment of the present invention provides a net liquid system for pesticide production, which includes a cylinder body. A cover plate is installed at the upper end of the cylinder body. A waste water heating unit and a waste water sterilization unit are installed on the cover plate. A waste water input pipe is connected to the cover plate. The other end of the waste water input pipe is connected to a uniform medicine adding unit. The other end of the uniform medicine adding unit is connected to a waste water filtering unit. The other end of the waste water filtering unit is connected to a connecting flange. A support frame is fixedly connected to the outer side of the cylinder body. Connecting plates are fixedly connected to the side edges of the upper end of the cylinder body and the side edges of the cover plate. Connecting columns are fixedly connected to a pair of opposite connecting plates. A pair of connecting modules are connected between a pair of opposite connecting columns.

[0006] Further, each of the connecting modules includes a short pipe, a circle, an outer pipe, a guiding column and an arch-shaped piece. Among them, a blocking piece is installed on the short pipe. A groove is reserved on the outer peripheral wall of the short pipe. The groove coils around the outer peripheral wall of the short pipe. A number of fastening ends are installed on the short pipe. The fastening ends face the center of the short pipe. The fastening ends are distributed in a circular shape. Each of the fastening ends includes a pressing piece and a right-angled trapezoidal piece. The circle is movably installed on the peripheral wall of the short pipe. The circle is movably connected to the right-angled trapezoidal piece. The outer pipe is screwed onto the outer peripheral wall of the short pipe. A connecting strip is installed on the outer pipe. One end of the connecting strip is movably installed on the circle. One end of the guiding column is installed on the connecting strip. The other end of the guiding column is slidably installed in the groove. The arch-shaped piece is fixedly connected to the outer pipe. A tooth groove is reserved on a wall surface of the arch-shaped piece close to the outer pipe; when rotating a pair of connecting modules in opposite directions, the blocking pieces on the pair of connecting modules contact and cooperate with each other, and the arch-shaped pieces on the pair of connecting modules are connected to each other through corresponding tooth grooves; an arch-shaped strip is movably installed on the outer pipe of one of the connecting modules along the circumferential direction, and one side of the arch-shaped piece of the other connecting module背离其牙口的一边 and the arch-shaped strip are in close contact.

[0007] Further, a texture is reserved on the inner wall surface of the pressing piece.

[0008] Further, the blocking piece is a half-week arch-shaped piece, and the outer peripheral wall of the blocking piece is in contact with the inner wall surface of the outer pipe.

[0009] Further, the number of the fastening ends on each of the connecting modules is three pairs.

[0010] Further, a pair of arch-shaped pieces are distributed in a circular shape on each of the connecting modules, and a pair of guiding columns and grooves are distributed in a circular shape on each of the connecting modules.

[0011] Further, the cross-section of the inclined end of the right-angled trapezoidal piece is a "丄"-shaped structure, and a track matching the inclined end is reserved on the circle.

[0012] A method for producing a purified liquid from a pesticide, comprising the above-mentioned system for producing a purified liquid from a pesticide, comprising the following steps:

[0013] Step 1: Connect the wastewater pipe and the connecting flange and start the system operation;

[0014] Step 2: Open the valve to allow the wastewater to flow to the wastewater filtration unit, which filters the wastewater;

[0015] Step 3: After the wastewater is filtered, it falls into the uniform adding unit, which evenly adds the reagent into the wastewater, and the wastewater mixed with the reagent falls into the cylinder through the wastewater input pipe;

[0016] Step 4: The wastewater heating unit heats and stirs the wastewater in the cylinder, and the wastewater sterilization unit sterilizes the wastewater during the stirring process with ultraviolet light, thereby completing the treatment of the wastewater;

[0017] Step 5: Clean the system, unfasten the connection module, lift the cover, and then clean the inside of the cylinder and other parts. After cleaning, fix the cover on the cylinder through the connection module.

[0018] The beneficial effects of the present invention are:

[0019] The present invention uses a pair of connecting modules to fasten the connecting columns respectively, and the pair of connecting modules are connected to each other by rotating the outer tubes on the pair of connecting modules towards each other to achieve the purpose of connection, and the rotation can be completed in half a circle, thereby achieving the purpose of rapid connection between the connecting columns, so that the cover plate and the cylinder can be quickly disassembled and closed, and then it is convenient to clean the cylinder.

[0020] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the main cross-sectional structure of an embodiment of the present invention;

[0023] Figure 2 For the embodiment of the present invention Figure 1 A schematic diagram of the structure at a is enlarged;

[0024] Figure 3This is a schematic diagram of the uniform drug adding unit structure of an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a wastewater filtration unit according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection module structure of an embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the main structure of the connection module according to an embodiment of the present invention;

[0028] Figure 7 For the embodiment of the present invention Figure 6 Schematic diagram of the structure along line BB;

[0029] Figure 8 This is a schematic diagram of the structure of the connection module before connection according to an embodiment of the present invention;

[0030] Fig. 9 A schematic diagram of a three-dimensional structure of a connection module according to an embodiment of the present invention;

[0031] Fig.10 A schematic diagram of the connection structure of the connection module according to an embodiment of the present invention;

[0032] Fig.11 This is a schematic diagram of the disassembled structure of the connection module according to an embodiment of the present invention;

[0033] Figure numerals: 1, cylinder; 2, cover plate; 3, wastewater heating unit; 4, wastewater sterilization unit; 5, wastewater inlet pipe; 6, uniform drug addition unit; 7, wastewater filtration unit; 8, connecting flange; 9, support frame; 10, connecting plate; 11, connecting column; 12, connecting module; 31, motor; 32, stirring shaft; 33, stirring blade; 34, heating tube; 35, temperature controller; 41, glass cylinder; 42, ultraviolet sterilization lamp; 43, transparent frame; 44, reflector; 61, hollow bearing Connecting pipe; 62, medicine input pipe; 63, diverter nozzle; 64, barrier block; 65, inner support rod; 71, connecting pipe; 72, fixing ring; 73, movable ring; 74, filter element; 121, short pipe; 122, barrier piece; 123, groove; 124, fastening end; 1241, compression piece; 1242, right-angle trapezoidal piece; 125, circle; 126, outer pipe; 127, connecting strip; 128, guide column; 129, arched piece; 1291, tooth mouth; 1210, arched strip. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described 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.

[0035] Reference Figure 1-11 The embodiment of the present invention provides a liquid purification system for pesticide production, comprising a cylinder 1, a cover plate 2 is arranged on the upper end of the cylinder 1, a wastewater heating unit 3 and a wastewater sterilization unit 4 are arranged on the cover plate 2, a wastewater input pipe 5 is connected to the cover plate 2, the other end of the wastewater input pipe 5 is connected to a uniform drug adding unit 6, the other end of the uniform drug adding unit 6 is connected to a wastewater filtering unit 7, the other end of the wastewater filtering unit 7 is connected to a connecting flange 8, a support frame 9 is fixedly connected to the outer side of the cylinder 1, the side of the upper end of the cylinder 1 and the side of the cover plate 2 are both fixedly connected to a connecting plate 10, a pair of connecting plates 10 facing each other are fixedly connected to connecting columns 11, and the pair of connecting columns 11 facing each other are connected via a pair of connecting modules 12.

[0036] Reference Figure 5-11 Each connection module 12 includes a short tube 121, a circle 125, an outer tube 126, a guide column 128 and an arched sheet 129, wherein a barrier 122 is arranged on the short tube 121, a groove 123 is reserved on the outer peripheral wall of the short tube 121, the groove 123 is coiled on the outer peripheral wall of the short tube 121, a plurality of fastening ends 124 are arranged on the short tube 121, the fastening ends 124 face the center of the short tube 121, the fastening ends 124 are distributed in a circle, each fastening end 124 includes a compression sheet 1241 and a right-angle trapezoidal sheet 1242, the circle 125 is movably arranged on the peripheral wall of the short tube 121, the circle 125 and the right-angle trapezoidal sheet 1242 are movably The outer tube 126 is screwed on the outer peripheral wall of the short tube 121, and a connecting strip 127 is installed on the outer tube 126. One end of the connecting strip 127 is movably installed on the circle 125, one end of the guide column 128 is installed on the connecting strip 127, and the other end of the guide column 128 is slidably installed in the groove 123. The arched piece 129 is fixedly connected to the outer tube 126, and a tooth opening 1291 is reserved on a wall surface of the arched piece 129 close to the outer tube 126; when a pair of connecting modules 12 are rotated oppositely, the blocking members 122 on the pair of connecting modules 12 contact and cooperate with each other, and the arched pieces 129 on the pair of connecting modules 12 are connected to each other through the corresponding tooth openings 1291.

[0037] The teeth 1291 are skewed and made of tpe material. The arched piece 129 and the teeth 1291 are an integral structure. The rotation is clockwise and counterclockwise. The peripheral wall of the outer tube 126 is reserved with lines for use. One end of the connecting strip 127 is movably installed on the circle 125 along the circumferential direction of the circle 125, and the connecting strip 127 moves along the circumferential direction of the circle 125.

[0038] After a pair of connecting modules 12 are connected, when the pair of connecting modules 12 are rotated, the pair of blocking members 122 are first connected to each other, so that the short tube 121 and the fastening end 124 do not rotate. Then, for one of the connecting modules 12, the outer tube 126 rotates relative to the short tube 121, and the outer tube 126 pulls the connecting strip 127 and the guide column 128 to move together, so that the connecting strip 127 moves along the circle 125, and the guide column 128 moves along the groove 128. 23 changes, and then pulls the circle 125 to change along the direction of the central axis compared to the short tube 121 toward the direction close to the blocking member 122. The circle 125 and the right-angled trapezoidal piece 1242 on the fastening end 124 cooperate with each other to allow the fastening end 124 to move relative to each other and move inward on the short tube 121, so as to achieve the purpose of using the compression piece 1241 to compress and tighten the connecting column 11, and the teeth 1291 on the arched piece 129 of the connecting module 12 bite each other.

[0039] A pair of connecting modules 12 are respectively fastened to the connecting columns 11, and the connecting modules 12 are connected to each other. The outer tubes 126 on the connecting modules 12 are directly rotated, and only half a circle is required to quickly fasten the connecting columns 11 so as to close the cover plate 2.

[0040] The barrier 122 is a half-circle arched piece, and the outer peripheral wall of the barrier 122 is in contact with the inner wall of the outer tube 126. When the pair of barrier 122 is embedded in the opposite outer tube 126, the barrier 122 is in contact with each other. During the rotation of the pair of outer tubes 126, there is no need to provide extra rotation distance to complete the gap between the barrier 122. The entire rotation distance of the pair of outer tubes 126 is used to pull the fastening end 124 to fasten the connection column 11, and then the connection between the pair of arched pieces 129 can be quickly completed; at the same time, after the barrier 122 on the connection module 12 is embedded in the outer tube 126 on the connection module 12, the pair of connection columns 11 connected by the connection module 12 can be firmly connected. The end of the barrier 122 is arched, which is convenient for the barrier 122 to be embedded in the opposite outer tube 126.

[0041] The number of fastening ends 124 on each connection module 12 is three pairs.纹路 are reserved on the inner wall surface of the pressing piece 1241, thereby increasing the blocking effect between the pressing piece 1241 and the connection column 11 to ensure the fastening effect on the connection column 11. There is a pair of arched pieces 129 on each connection module 12 distributed in a circular shape, and teeth 1291 are reserved on each arched piece 129; there is a pair of guiding columns 128 and grooves 123 on each connection module 12 distributed in a circular shape, which can enhance the reliability of the connection between a pair of connection modules 12. The cross-section of the inclined end of the right-angled trapezoidal piece 1242 is in an "丄" - shaped structure, and a track matching the inclined end is reserved on the circle 125, thereby achieving the cooperative movement between the circle 125 and the right-angled trapezoidal piece 1242. And when the connection column 11 passes through the short tube 121, by moving the circle 125 towards the side away from the partition 122, all the fastening ends 124 matching it can be moved away from each other, thereby facilitating the connection column 11 to pass through the short tube 121.

[0042] If the guiding column 128 is fixedly connected to the connection bar 127, the guiding column 128 and the groove 123 are movably connected; if the guiding column 128 and the connection bar 127 are rotatably connected, then the guiding column 128 and the groove 123 are slidably connected, thereby reducing the blocking effect.

[0043] There is a distance between the arched piece 129 and the corresponding outer tube 126 on its horizontal center line. An arched bar 1210 is movably installed circumferentially on the outer tube 126 of one of the connection modules 12. When a pair of arched pieces 129 are engaged through the corresponding teeth 1291, the side of the arched piece 129 of the other connection module 12 away from its tooth 1291 is in close contact with the arched bar 1210; when the device needs to be cleaned, remove the cover plate 2. Only need to move the arched bar 1210 away from between the corresponding arched piece 129 and the outer tube 126, then press the appearance along the length direction of the outer tube 126 and rotate reversely circumferentially, then the teeth 1291 between a pair of arched pieces 129 can be separated from each other, thereby disassembling a pair of connection modules 12, and thus the cover plate 2 can be directly opened and the device can be cleaned.

[0044] It should be noted that the "纹路" in the original text seems to be an incorrect or incomplete expression. It is recommended to check and correct it in the original content for a more accurate translation.Insert one end of the connecting column 11 through the short tube 121 on the connecting module 12, insert the other connecting column 11 facing the short tube 121 through the short tube 121 on the other connecting module 12, and then pull the outer tubes 126 on the connecting modules 12 closer to each other, and insert the pair of blocking members 122 into the outer tubes 126 facing each other, until the side of the arched piece 129 in the middle away from the tooth 1291 contacts the arched strip 1210, and the connecting area of ​​the pair of connecting columns 11 facing each other Located in the middle of a pair of connecting modules 12, the pair of outer tubes 126 are rotated toward each other to allow the teeth 1291 on the pair of arched pieces 129 to slowly engage with each other. The pair of connecting modules 12 are fastened to the corresponding connecting columns 11 through the cooperation between the corresponding connecting strips 127, guide columns 128, grooves 123, circles 125, and fastening ends 124, and the pair of connecting modules 12 are also fastened through the cooperation of the teeth 1291 on the corresponding arched pieces 129.

[0045] Reference Figure 1 The wastewater heating unit 3 includes a motor 31 fixedly connected to the cover plate 2. The output end of the motor 31 extends into the interior of the cylinder 1 and is connected to the stirring shaft 32. A concave stirring blade 33 is arranged at the lower end of the stirring shaft 32. A heating tube 34 is arranged on the inner side of the stirring blade 33. An electric heating wire is arranged in the heating tube 34. A thermostat 35 is arranged at the bottom of the stirring shaft 32 to control the action of the motor 31. The motor 31 drives the stirring shaft 32 to rotate, and the stirring shaft 32 drives the stirring blade 33 to rotate, thereby stirring the water body. The thermostat 35 is an existing structure. The thermostat 35 is used to monitor the temperature of the water body. The thermostat 35 is electrically connected to the electric heating wire to ensure that the water body is evenly heated and the use effect of the agent is ensured.

[0046] Reference Figure 1 and Figure 2 The wastewater sterilization unit 4 includes a glass tube 41 fixedly connected to the cover plate 2. An ultraviolet sterilization lamp 42 and a transparent frame 43 are installed inside the glass tube 41. A reflector 44 is installed on the transparent frame 43 to control the operation of the ultraviolet sterilization lamp 42. The ultraviolet rays pass through the glass tube 41 to sterilize the water body, and at the same time, the ultraviolet rays are refracted by the reflector 44, thereby enhancing the sterilization effect of the ultraviolet rays.

[0047] Reference Figure 1 and Figure 3The uniform drug adding unit 6 is threadedly connected to the hollow receiving tube 61 on the wastewater input pipe 5, one side of the hollow receiving tube 61 is connected to the drug input pipe 62, the inner side of the hollow receiving tube 61 is connected to the diverter nozzle 63, and a blocking block 64 is installed on the inner side of the hollow receiving tube 61. The blocking block 64 is connected to the hollow receiving tube 61 through the inner support rod 65. The drug enters the hollow receiving tube 61 through the drug input pipe 62, and is then sprayed out by the diverter nozzle 63 on the inner side of the hollow receiving tube 61. At the same time, the wastewater that falls in is blocked by the blocking block 64 and the inner support rod 65, so that the drug is evenly added to the wastewater.

[0048] Reference Figure 1 and Figure 4 The wastewater filtering unit 7 includes a connecting pipe 71 threadedly connected to the hollow receiving pipe 61, a fixing ring 72 is fixedly connected to the inner wall of the connecting pipe 71, a movable ring 73 is carried on the fixing ring 72, and a filter element 74 is installed on the movable ring 73. The wastewater is filtered through the filter element 74 to facilitate the treatment of the wastewater.

[0049] A method for producing a clean liquid for pesticides, comprising the following steps:

[0050] Step 1: Connect the wastewater pipe to the connecting flange 8 and start the system operation;

[0051] Step 2: Open the valve to allow the wastewater to flow to the wastewater filter unit 7, and the wastewater filter unit 7 filters the wastewater;

[0052] Step 3: After the wastewater is filtered, the filtered wastewater falls into the uniform drug adding unit 6, and the uniform drug adding unit 6 uniformly adds the drug into the wastewater, and the wastewater mixed with the drug falls into the cylinder 1 through the wastewater input pipe 5;

[0053] Step 4: the wastewater heating unit 3 heats and stirs the wastewater in the cylinder 1, and the wastewater sterilization unit 4 sterilizes the wastewater during the stirring process with ultraviolet light, thereby completing the treatment of the wastewater;

[0054] Step 5: Clean the system, unfasten the connection module 12, lift the cover plate 2, and then clean the inside of the cylinder 1 and other components. After cleaning, fix the cover plate 2 on the cylinder 1 through the connection module 12.

[0055] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A liquid purification system for producing pesticides, comprising a cylinder (1), characterized in that: A cover plate (2) is mounted on the upper end of the cylinder (1), a wastewater heating unit (3) and a wastewater sterilization unit (4) are mounted on the cover plate (2), a wastewater inlet pipe (5) is connected to the cover plate (2), the other end of the wastewater inlet pipe (5) is connected to a uniform dosing unit (6), the other end of the uniform dosing unit (6) is connected to a wastewater filtration unit (7), the other end of the wastewater filtration unit (7) is connected to a connecting flange (8), the outer side of the cylinder (1) is fixedly connected to a support frame (9), the side of the upper end of the cylinder (1) and the side of the cover plate (2) are both fixedly connected to a connecting plate (10), a pair of connecting plates (10) facing each other are fixedly connected to connecting columns (11), and the pair of connecting columns (11) facing each other are connected via a pair of connecting modules (12); Each of the connection modules (12) comprises a short tube (121), a circle (125), an outer tube (126), a guide column (128) and an arched sheet (129), wherein a barrier (122) is mounted on the short tube (121), a groove (123) is reserved on the outer peripheral wall of the short tube (121), and the groove (123) is coiled on the outer peripheral wall of the short tube (121), and a plurality of fastening ends (124) are mounted on the short tube (121), and the fastening ends (124) are 4) Towards the center of the short tube (121), the fastening ends (124) are distributed in a circle shape, each of the fastening ends (124) comprises a compression piece (1241) and a right-angled trapezoidal piece (1242), the circle (125) is movably mounted on the peripheral wall of the short tube (121), the circle (125) and the right-angled trapezoidal piece (1242) are movably connected, the outer tube (126) is screwed on the outer peripheral wall of the short tube (121), and the outer tube (126) is mounted with A connecting strip (127), one end of which is movably mounted on the circle (125), one end of which is mounted on the connecting strip (127), and the other end of which is slidably mounted in the groove (123), the arched piece (129) is fixedly connected to the outer tube (126), and a tooth opening (1291) is reserved on a wall surface of the arched piece (129) close to the outer tube (126); a pair of connecting modules (126) are rotated toward each other. ), the blocking members (122) on a pair of connecting modules (12) contact and cooperate with each other, and the arched sheets (129) on a pair of connecting modules (12) connect with each other via corresponding teeth (1291); an arched strip (1210) is movably arranged on the outer tube (126) on one of the connecting modules (12) in a circumferential direction, and the arched sheet (129) on the other connecting module (12) is in close contact with the arched strip (1210) on one side away from its teeth (1291); The outer tube (126) drives the traction connection strip (127) and the guiding column (128) to move together, so that during the circumferential movement of the connection strip (127) along the circle (125), the guiding column (128) moves along the groove path (123), and then drives the circle (125) to move in the direction of the central axis towards the position close to the blocking member (122) compared with the short tube (121). The circle (125) and the right-angled trapezoidal piece (1242) on the fastening end (124) cooperate with each other, so that the fastening ends (124) cooperate with each other on the short tube (121) and move inwards, so as to achieve the purpose of pressing and fastening the connection column (11) by the pressing piece (1241), and the pair of connection modules (12) also achieve the fastening purpose through the cooperation of the teeth (1291) on the corresponding arched pieces (129).

2. A liquid purification system for pesticide production according to claim 1, characterized in that: Patterns are reserved on the inner wall surface of the pressing piece (1241).

3. A liquid purification system for pesticide production according to claim 1, characterized in that: The blocking member (122) is an arched piece with a half circumference, and the outer peripheral wall of the blocking member (122) is attached to the inner wall surface of the outer tube (126).

4. A liquid purification system for pesticide production according to claim 1, characterized in that: The number of fastening ends (124) on each connection module (12) is three pairs.

5. The liquid purification system for pesticide production according to claim 1, characterized in that: A pair of arched pieces (129) on each connection module (12) are distributed in a circular shape, and a pair of guiding columns (128) and groove paths (123) on each connection module (12) are distributed in a circular shape.

6. A liquid purification system for pesticide production according to claim 1, characterized in that: The cross-section of the inclined end of the right-angled trapezoidal piece (1242) is in an "丄" shaped structure, and a track matching the inclined end is reserved on the circle (125).

7. A method for producing a clean liquid from a pesticide, comprising the system for producing a clean liquid from a pesticide according to claim 1, characterized in that: It includes the following steps: Step 1: Connect the wastewater pipeline and the connecting flange (8), and start the system operation; Step 2: Open the valve to let the wastewater flow to the wastewater filtering unit (7), and the wastewater filtering unit (7) filters the wastewater; Step 3: After the wastewater is filtered, the filtered wastewater falls into the uniform chemical adding unit (6). The uniform chemical adding unit (6) uniformly adds chemicals to the wastewater, and the wastewater mixed with chemicals falls into the cylinder body (1) through the wastewater input pipe (5); Step 4: The wastewater heating unit (3) heats and stirs the wastewater in the cylinder body (1), and at the same time the wastewater sterilization unit (4) performs ultraviolet sterilization on the wastewater during the stirring process, and then completes the treatment of the wastewater; Step 5: Clean the system, unlock the connection module (12), lift the cover plate (2), and then clean the inside of the cylinder body (1) and other components. After the cleaning is completed, fix the cover plate (2) on the cylinder body (1) through the connection module (12).

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