Wastewater treatment equipment and method for bactericidal pesticide production

Abstract

This invention belongs to the field of wastewater treatment technology and discloses a wastewater treatment device and method for the production of bactericidal pesticides. It includes a main support frame, with an evaporation assembly fixedly connected inside. The evaporation assembly contains a stirring assembly and a pressure regulating assembly. A top sealing plate and a bottom sealing plate are movably connected inside the evaporation assembly. This invention, through the cooperation of structures such as the bottom sealing plate and the partition plate, facilitates the separation of the evaporation chamber and the collection chamber, preventing disruption of the gas pressure state of the evaporation chamber during crystal discharge. A second telescopic rod drives a limiting support rod to move, which can move the bottom sealing plate to engage or disengage with the partition plate. Through the cooperation of structures such as a vertical scraper and a scraping frame, it facilitates the scraping of salt crystals from the inner wall of the evaporation chamber while preventing salt crystals from adhering to the scraper. A transmission rod drives the support frame and the vertical scraper to rotate.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically a wastewater treatment device and method for the production of bactericidal pesticides. Background Technology

[0002] Wastewater generated during the production of bactericidal pesticides contains a variety of pollutants, which are typically characterized by high concentration, high toxicity, and difficulty in biodegradation. It contains various organic and inorganic pollutants, and often contains high concentrations of salt. These salts may originate from raw materials or reaction conditions during the production process. These high-concentration salts cannot be discharged directly and require desalination treatment. A common method is thermal treatment, which involves heating the wastewater to evaporate the water and leave the salts.

[0003] When using thermal desalination methods, it is often necessary to extract the air from the evaporation chamber to create a negative pressure environment, thereby lowering the liquid boiling point and reducing energy consumption. In traditional treatment equipment, after liquid evaporation, salt crystals are directly discharged from the evaporation chamber, disrupting the internal pressure. This necessitates re-extraction of air to create a negative pressure environment for subsequent production processes. Therefore, this paper proposes a wastewater treatment device and method for the production of bactericidal pesticides. Summary of the Invention

[0004] To address the problem mentioned in the background art that the direct discharge of salt crystals from inside the evaporation chamber would disrupt the gas pressure inside the evaporation chamber, this invention provides a wastewater treatment device and method for the production of bactericidal pesticides.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment device for the production of bactericidal pesticides, comprising a main support frame, an evaporation component fixedly connected inside the main support frame, a stirring component and a pressure regulating component disposed inside the evaporation component, a top sealing plate and a bottom sealing plate movably connected inside the evaporation component, a partition plate fixedly connected inside the evaporation component, a second motor disposed at the bottom of the main support frame, and a salt-pushing scraper fixedly connected to the output end of the second motor; The evaporation assembly includes a heating tank body fixedly connected to the main support. The top and bottom of the heating tank body are respectively fixedly connected to an air extraction port and a material outlet. The middle part of the heating tank body is fixedly connected to a material inlet. The interior of the heating tank body is divided into an evaporation chamber and a collection chamber.

[0006] Preferably, the heating tank body has a heating jacket inside, the exhaust port is connected to a suction device, the feed port is connected to a raw material tank, and a one-way valve is provided in the middle of the feed port. The feed port is connected to the evaporation chamber, the exhaust port passes through the top sealing plate and is connected to the evaporation chamber, and the discharge port is connected to the collection chamber.

[0007] Preferably, the stirring assembly includes a transmission rod rotatably connected inside the heating tank body and a first motor fixedly connected to the top of the heating tank body. Multiple support frames are spirally distributed outside the transmission rod, and vertical scrapers are slidably connected inside each support frame. A traction rod is hinged to one side of the vertical scraper located inside the support frame. A scraping frame is sleeved outside the transmission rod, and a support ring is rotatably connected to the top of the scraping frame. A bottom scraper is fixedly connected to the bottom of the transmission rod, and a first telescopic rod is annularly distributed at the top of the support ring.

[0008] Preferably, the top of the transmission rod is provided with teeth, and a gear is fixedly connected to the output end of the first motor. The teeth on the top of the transmission rod mesh with the gear. The transmission rod is located inside the evaporation chamber. The vertical scraper abuts against the inner wall of the heating tank body. At the same time, the bottom surface of the upper vertical scraper and the top surface of the adjacent lower vertical scraper are coplanar in the horizontal direction.

[0009] Preferably, the scraping frame has scraping rings arranged linearly in the middle, each scraping ring corresponding to a position of a traction rod and hinged to the traction rod. The scraping frame is slidably connected to the support frame. The support ring abuts against the inner wall of the heating tank body. The bottom scraper abuts against the bottom sealing plate. The bottom sealing plate abuts against the partition plate and has the same specifications. The end of the first telescopic rod away from the support ring is fixedly connected to the heating tank body.

[0010] Preferably, the pressure regulating component includes a limiting support rod movably connected inside the heating tank body, a second telescopic rod fixedly connected to the top of the limiting support rod, a ventilation channel opened inside the limiting support rod, a communication port opened at one end of the limiting support rod located at the bottom of the transmission rod, a third telescopic rod fixedly connected to the bottom of the ventilation channel, a sealing block fixedly connected to the output end of the third telescopic rod, and a vent hole opened at one end of the limiting support rod located at the bottom of the bottom sealing plate.

[0011] Preferably, the limiting support rod is slidably connected inside the transmission rod, and the top of the transmission rod extends through the top sealing plate and the heating tank body to the top of the heating tank body. The second telescopic rod is fixedly connected to the main support. The two ends of the limiting support rod are rotatably connected to the top sealing plate and the bottom sealing plate, respectively. The sealing block is located below the air guide hole.

[0012] Preferably, the top sealing plate is located above the transmission rod, the bottom sealing plate is located below the partition plate and is engaged with the partition plate, and the bottom sealing plate and the second motor are located inside the collection chamber.

[0013] Preferably, the second motor is rotatably connected to the main body of the heating tank, the bottom of the second motor is fixedly connected to the salt-pushing scraper, and the top of the second motor is slidably connected to the limiting support rod.

[0014] A method for treating wastewater from the production of bactericidal pesticides includes the following steps: S1. The second telescopic rod pulls the limiting support rod upward, causing the limiting support rod to pull the bottom sealing plate to move, so that the bottom sealing plate and the partition plate are locked together. Then, high-salt waste liquid is transported into the heating tank body through the feed port. Then, air is drawn out from the heating tank body through the suction device connected to the air extraction port to make the evaporation chamber a negative pressure state. S2. When the main body of the heating tank draws air from the inside of the evaporation chamber, the third telescopic rod pulls the sealing block downward to connect the air guide hole with the ventilation channel, so that the evaporation chamber and the collection chamber are connected through the ventilation channel, the connecting port and the air guide hole, so that the air extraction port simultaneously draws air from the inside of the collection chamber, and simultaneously draws the inside of the collection chamber into a negative pressure state. S3. The high-salt waste liquid is heated by the main body of the heating tank. At the same time, water vapor is continuously drawn in through the exhaust port. Simultaneously, the first motor drives the transmission rod to rotate, which in turn drives the support frame and the vertical scraper to rotate, thereby agitating the high-salt waste liquid and scraping off the salt crystals condensed on the inner wall of the heating tank. At the same time, the one-way valve at the feed port is opened to replenish the high-salt waste liquid into the heating tank. Meanwhile, the first telescopic rod extends and retracts periodically, which drives the scraping frame to move up and down through the support ring. The scraping ring scrapes off the salt crystals condensed on the outer surface of the transmission rod. At the same time, the scraping frame pulls the vertical scraper to move through the traction rod, causing the vertical scraper to slide from inside the support frame and scrape off the salt crystals on the surface of the vertical scraper. S4. After the salt solution has evaporated and crystallized, the third telescopic rod pushes the sealing block upward to block the air vent. Then, the second telescopic rod pushes the limiting support rod downward to release the bottom sealing plate from the partition plate, allowing the salt crystals to be pushed into the collection chamber by the bottom scraper. Then, the second telescopic rod pulls the limiting support rod to reset, closing the bottom sealing plate and partition plate. While maintaining the temperature and negative pressure inside the evaporation chamber, the salt crystals are discharged.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention facilitates the separation of the evaporation chamber and the collection chamber by setting up a bottom sealing plate and a partition plate, thus avoiding disruption of the gas pressure state of the evaporation chamber when crystals are discharged. The second telescopic rod drives the limiting support rod to move, which can move the bottom sealing plate to engage or separate from the partition plate, allowing the salt crystals to be entered into the collection chamber by the bottom scraper. The bottom sealing plate can engage and close with the partition plate to separate the evaporation chamber and the collection chamber. Salt crystals are discharged while maintaining a constant temperature and negative pressure state inside the evaporation chamber. This invention, through the combination of a vertical scraper and a scraping frame, facilitates the scraping of salt crystals on the inner wall of the evaporation chamber while preventing salt crystals from adhering to the scraper. By driving the transmission rod to rotate the support frame and the vertical scraper, the high-salt waste liquid is agitated, and the condensed salt crystals on the inner wall of the heating tank are scraped off. At the same time, the first telescopic rod periodically extends and retracts, driving the scraping frame to move up and down through the support ring. The scraping ring scrapes off the salt crystals condensed on the outer surface of the transmission rod. Simultaneously, the scraping frame pulls the vertical scraper through the traction rod, causing the vertical scraper to slide from inside the support frame and scrape off the salt crystals on the surface of the vertical scraper. This invention, through the combination of a pressure regulating component and a bottom sealing plate, facilitates the adjustment of the pressure state inside the evaporation chamber and the collection chamber to be consistent. When air is drawn from inside the evaporation chamber through the air extraction port, the evaporation chamber and the collection chamber are connected through the air guide hole and the air passage, so that the main body of the heating tank simultaneously draws air from inside the collection chamber, creating a negative pressure state inside the collection chamber. This ensures that the air pressure inside the evaporation chamber remains constant when salt crystals enter the collection chamber from the evaporation chamber. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic side sectional view of the entire invention; Figure 3 This is a cross-sectional view of the middle part of the upper end of the stirring assembly of the present invention; Figure 4 This is a schematic diagram of the overall stirring assembly of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a cross-sectional view of the connection between the stirring assembly and the main body of the heating tank of the present invention; Figure 7 This is a cross-sectional view of the lower end of the stirring assembly of the present invention; Figure 8 for Figure 7 Enlarged diagram of point B in the middle.

[0017] In the diagram: 1. Main support frame; 2. Evaporation assembly; 21. Heating tank body; 22. Exhaust port; 23. Feed inlet; 24. Discharge port; 25. Evaporation chamber; 26. Collection chamber; 3. Stirring assembly; 31. Transmission rod; 32. First motor; 33. Support frame; 34. Vertical scraper; 35. Traction rod; 36. Scraper frame; 37. Support ring; 38. Bottom scraper; 39. First telescopic rod; 4. Pressure regulating assembly; 41. Limiting support rod; 42. Second telescopic rod; 43. Ventilation channel; 44. Connecting port; 45. Third telescopic rod; 46. Sealing block; 47. Air guide hole; 5. Top sealing plate; 6. Bottom sealing plate; 7. Divider plate; 8. Second motor; 9. Salt pushing scraper. Detailed Implementation

[0018] 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.

[0019] like Figures 1 to 8 As shown, the present invention provides a wastewater treatment device for the production of bactericidal pesticides, including a main support 1, an evaporation component 2 fixedly connected inside the main support 1, a stirring component 3 and a pressure regulating component 4 disposed inside the evaporation component 2, a top sealing plate 5 and a bottom sealing plate 6 movably connected inside the evaporation component 2, a partition plate 7 fixedly connected inside the evaporation component 2, a second motor 8 disposed at the bottom of the main support 1, and a salt pushing scraper 9 fixedly connected to the output end of the second motor 8. The evaporation assembly 2 includes a heating tank body 21 fixedly connected to the main support 1. The top and bottom of the heating tank body 21 are respectively fixedly connected to an air extraction port 22 and a material outlet 24. The middle part of the heating tank body 21 is fixedly connected to a material inlet 23. The interior of the heating tank body 21 is divided into an evaporation chamber 25 and a collection chamber 26. A heating jacket is provided inside the heating tank body 21. The air extraction port 22 is connected to a suction device. The material inlet 23 is connected to a raw material tank. A one-way valve is provided in the middle of the material inlet 23. The material inlet 23 is connected to the evaporation chamber 25. The air extraction port 22 passes through the top sealing plate 5 and is connected to the evaporation chamber 25. The material outlet 24 is connected to the collection chamber 26.

[0020] The above scheme is adopted as follows: by setting up the evaporation component 2, the waste liquid is heated by the heating jacket set inside the heating tank body 21. At the same time, air and water vapor are drawn in through the air extraction port 22 to keep the inside of the heating tank body 21 under negative pressure. The feed inlet 23 set in the middle of the heating tank body 21 can continuously replenish the waste liquid inside the heating tank body 21. By setting up the evaporation chamber 25 and the collection chamber 26 inside the heating tank body 21, the temperature and negative pressure can be maintained when the salt crystals inside the heating tank body 21 are discharged.

[0021] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the stirring assembly 3 includes a transmission rod 31 rotatably connected inside the heating tank body 21 and a first motor 32 fixedly connected to the top of the heating tank body 21. Multiple support frames 33 are spirally distributed outside the transmission rod 31. Vertical scrapers 34 are slidably connected inside each support frame 33. A traction rod 35 is hinged to one side of the vertical scraper 34 inside the support frame 33. A scraping frame 36 is sleeved outside the transmission rod 31. A support ring 37 is rotatably connected to the top of the scraping frame 36. A bottom scraper 38 is fixedly connected to the bottom of the transmission rod 31. A first telescopic rod 39 is distributed in a ring on the top of the support ring 37.

[0022] The above scheme is adopted as follows: By setting the stirring assembly 3, the first motor 32 can drive the transmission rod 31 to rotate, and the transmission rod 31 drives the support frame 33 and the vertical scraper 34 to rotate, so as to stir the heated waste liquid. When the transmission rod 31 rotates, the first telescopic rod 39 synchronously extends and retracts periodically, and the scraping frame 36 moves up and down through the support ring 37, so that the scraping ring set in the middle of the scraping frame 36 scrapes off the salt crystals condensed on the outer surface of the transmission rod 31. While the scraping frame 36 moves, the traction rod 35 moves synchronously with the scraping frame 36, thereby pulling the vertical scraper 34 to move horizontally back and forth, so that the vertical scraper 34 slides back and forth inside the support frame 33 to scrape off the salt crystals on the surface of the vertical scraper 34. At the same time, the bottom scraper 38 rotates continuously to scrape off the salt crystals on the top of the bottom sealing plate 6 and the partition plate 7.

[0023] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the top of the transmission rod 31 is provided with teeth, and the output end of the first motor 32 is fixedly connected to a gear. The teeth on the top of the transmission rod 31 mesh with the gear. The transmission rod 31 is located inside the evaporation chamber 25. The vertical scraper 34 abuts against the inner wall of the heating tank body 21. At the same time, the bottom surface of the upper vertical scraper 34 and the top surface of the adjacent lower vertical scraper 34 are coplanar in the horizontal direction. The scraping frame 36 is provided with scraping rings arranged linearly in the middle. The scraping rings correspond to the positions of the traction rod 35 and are hinged to the traction rod 35. The scraping frame 36 is slidably connected to the support frame 33. The support ring 37 abuts against the inner wall of the heating tank body 21. The bottom of the bottom scraper 38 abuts against the bottom sealing plate 6. The bottom sealing plate 6 abuts against the partition plate 7 and is of the same specification. The end of the first telescopic rod 39 away from the support ring 37 is fixedly connected to the heating tank body 21.

[0024] The above scheme is adopted as follows: the teeth set at the top of the transmission rod 31 and the gear set at the output end of the first motor 32 facilitate the first motor 32 to drive the transmission rod 31 to rotate. The vertical scraper 34 can scrape off the salt crystals on the inner wall of the heating tank body 21 and stir the waste liquid at the same time, so that the solution is in a flowing state, reducing the probability of the formation of large crystals. The edges of the vertical scrapers 34 are set to overlap to avoid scraping dead corners. The scraping ring can scrape off the salt crystals on the outer wall of the transmission rod 31. At the same time, the limiting groove opened in the middle of the scraping frame 36 allows the support frame 33 to slide inside the limiting groove, so that when the support frame 33 rotates, it will drive the scraping frame 36 to rotate synchronously.

[0025] like Figure 5 , Figure 7 and Figure 8 As shown, the pressure regulating component 4 includes a limiting support rod 41 movably connected inside the heating tank body 21. A second telescopic rod 42 is fixedly connected to the top of the limiting support rod 41. A ventilation channel 43 is opened inside the limiting support rod 41. A connecting port 44 is opened at one end of the limiting support rod 41 located at the bottom of the transmission rod 31. A third telescopic rod 45 is fixedly connected to the bottom of the ventilation channel 43. A sealing block 46 is fixedly connected to the output end of the third telescopic rod 45. A vent hole 47 is opened at one end of the limiting support rod 41 located at the bottom of the bottom sealing plate 6. The limiting support rod 41 is slidably connected inside the transmission rod 31, and the top of the transmission rod 31 extends through the top sealing plate 5 and the heating tank body 21 to the top of the heating tank body 21. The second telescopic rod 42 is fixedly connected to the main support 1. The two ends of the limiting support rod 41 are rotatably connected to the top sealing plate 5 and the bottom sealing plate 6, respectively. The sealing block 46 is located below the vent hole 47.

[0026] The above scheme is adopted as follows: By setting the pressure regulating component 4, the top sealing plate 5 and the bottom sealing plate 6 are moved synchronously by the limiting support rod 41. By setting the second telescopic rod 42, the up and down movement of the limiting support rod 41 can be easily controlled. The setting of the ventilation channel 43, the connecting port 44 and the air guide hole 47 can connect the evaporation chamber 25 and the collection chamber 26 when the bottom sealing plate 6 and the partition plate 7 are in the closed state, so that the evaporation chamber 25 and the collection chamber 26 are kept in the same state. By setting the third telescopic rod 45 and the sealing block 46, when the discharge port 24 is opened to discharge salt crystals, the evaporation chamber 25 and the collection chamber 26 are disconnected, so that the evaporation chamber 25 is kept in a negative pressure state. After the salt crystals are discharged, the air guide hole 47 can be opened, and the air in the collection chamber 26 can be drawn in through the ventilation channel 43 by the air extraction port 22, so that the inside of the collection chamber 26 is adjusted to a negative pressure state again, so as to ensure that the negative pressure state inside the evaporation chamber 25 remains unchanged.

[0027] like Figure 2 , Figure 6 and Figure 7 As shown, the top sealing plate 5 is located on the upper side of the transmission rod 31, the bottom sealing plate 6 is located on the lower side of the partition plate 7 and is engaged with the partition plate 7, the bottom sealing plate 6 and the second motor 8 are located inside the collection chamber 26, the second motor 8 is rotatably connected to the heating tank body 21, the bottom of the second motor 8 is fixedly connected to the salt pushing scraper 9, and the top of the second motor 8 is slidably connected to the limiting support rod 41.

[0028] The above scheme is adopted: by setting the bottom sealing plate 6 and the partition plate 7, the evaporation chamber 25 and the collection chamber 26 can be easily separated. At the same time, the top sealing plate 5 is set so that the bottom sealing plate 6 moves up and down and the top sealing plate 5 moves up and down synchronously, so that the gas pressure inside the evaporation chamber 25 remains constant. The setting of the second motor 8 and the salt pushing scraper 9 allows the salt pushing scraper 9 to drive the second motor 8 to rotate and push the salt crystals out from the discharge port 24.

[0029] like Figures 1 to 8 As shown, this invention proposes a method for treating wastewater from the production of bactericidal pesticides, comprising the following steps: S1. The second telescopic rod 42 pulls the limiting support rod 41 to move upward, so that the limiting support rod 41 pulls the bottom sealing plate 6 to move, so that the bottom sealing plate 6 and the partition plate 7 are locked together. Then, the high-salt waste liquid is transported into the heating tank body 21 through the feed port 23. Then, the suction device connected to the air extraction port 22 draws air from the heating tank body 21 to the outside to make the evaporation chamber 25 a negative pressure state. S2. When the air is drawn from the inside of the evaporation chamber 25 through the air extraction port 22, the third telescopic rod 45 pulls the sealing block 46 downward to connect the air guide hole 47 with the ventilation channel 43, so that the evaporation chamber 25 and the collection chamber 26 are connected through the ventilation channel 43, the connecting port 44 and the air guide hole 47, so that the heating tank body 21 simultaneously draws air from the inside of the collection chamber 26, and draws the inside of the collection chamber 26 into a negative pressure state. S3. The high-salt waste liquid is heated by the heating tank body 21, while the air extraction port 22 continuously draws in water vapor. At the same time, the first motor 32 drives the transmission rod 31 to rotate, which in turn drives the support frame 33 and the vertical scraper 34 to rotate, thereby agitating the high-salt waste liquid and scraping off the salt crystals condensed on the inner wall of the heating tank body 21. Simultaneously, the one-way valve at the feed port 23 is opened to replenish the high-salt waste liquid into the heating tank body 21. At the same time, the first telescopic rod 39 extends and retracts periodically, which drives the scraping frame 36 to move up and down through the support ring 37. The scraping ring scrapes off the salt crystals condensed on the outer surface of the transmission rod 31. At the same time, the scraping frame 36 pulls the vertical scraper 34 to move through the traction rod 35, causing the vertical scraper 34 to slide from inside the support frame 33 and scrape off the salt crystals on the surface of the vertical scraper 34. S4. After the salt solution has evaporated and crystallized, the third telescopic rod 45 pushes the sealing block 46 upward to block the air guide hole 47. Then, the second telescopic rod 42 pushes the limiting support rod 41 downward to release the bottom sealing plate 6 and the partition plate 7 from their closed state. This allows the salt crystals to be pushed into the collection chamber 26 by the bottom scraper 38. Then, the second telescopic rod 42 pulls the limiting support rod 41 to reset, closing the bottom sealing plate 6 and the partition plate 7. Under the condition that the temperature and negative pressure inside the evaporation chamber 25 remain unchanged, the salt crystals are discharged.

[0030] 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.

[0031] 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 wastewater treatment device for the production of bactericidal pesticides, comprising a main support frame (1), characterized in that: An evaporation assembly (2) is fixedly connected inside the main support (1). An stirring assembly (3) and a pressure regulating assembly (4) are provided inside the evaporation assembly (2). A top sealing plate (5) and a bottom sealing plate (6) are movably connected inside the evaporation assembly (2). A partition plate (7) is fixedly connected inside the evaporation assembly (2). A second motor (8) is provided at the bottom of the main support (1). A salt-pushing scraper (9) is fixedly connected to the output end of the second motor (8). The evaporation assembly (2) includes a heating tank body (21) fixedly connected to the main support (1). The top and bottom of the heating tank body (21) are respectively fixedly connected to an air extraction port (22) and a discharge port (24). The middle part of the heating tank body (21) is fixedly connected to a feed inlet (23). The interior of the heating tank body (21) is divided into an evaporation chamber (25) and a collection chamber (26). The stirring assembly (3) includes a transmission rod (31) rotatably connected inside the heating tank body (21) and a first motor (32) fixedly connected to the top of the heating tank body (21). Multiple support frames (33) are spirally distributed outside the transmission rod (31). Vertical scrapers (34) are slidably connected inside each support frame (33). A traction rod (35) is hinged to one side of each vertical scraper (34) inside the support frame (33). A scraping frame (36) is sleeved outside the transmission rod (31). A support ring (37) is rotatably connected to the top of the scraping frame (36). A bottom scraper (38) is fixedly connected to the bottom of the transmission rod (31). A first telescopic rod (39) is annularly distributed at the top of the support ring (37). Teeth are provided at the top of the transmission rod (31), and a gear is fixedly connected to the output end of the first motor (32). The teeth and gears mesh together. The transmission rod (31) is located inside the evaporation chamber (25). The vertical scraper (34) abuts against the inner wall of the heating tank body (21). At the same time, the bottom surface of the upper vertical scraper (34) and the top surface of the adjacent lower vertical scraper (34) are coplanar in the horizontal direction. The scraping frame (36) is provided with scraping rings arranged linearly in the middle. The scraping rings correspond to the positions of the traction rod (35) and are hinged to the traction rod (35). The scraping frame (36) is slidably connected to the support frame (33). The support ring (37) abuts against the inner wall of the heating tank body (21). The bottom scraper (38) abuts against the bottom sealing plate (6). The bottom sealing plate (6) abuts against the partition plate (7) and has the same specifications. The end of the first telescopic rod (39) away from the support ring (37) is fixedly connected to the heating tank body (21). The pressure regulating component (4) includes a limiting support rod (41) movably connected inside the heating tank body (21). A second telescopic rod (42) is fixedly connected to the top of the limiting support rod (41). A ventilation channel (43) is provided inside the limiting support rod (41). A connecting port (44) is provided at one end of the limiting support rod (41) located at the bottom of the transmission rod (31). A third telescopic rod (45) is fixedly connected to the bottom of the ventilation channel (43). A sealing block (46) is fixedly connected to the output end of the third telescopic rod (45). The support rod (41) has an air guide hole (47) at one end of the bottom sealing plate (6). The limiting support rod (41) is slidably connected inside the transmission rod (31), and the top of the transmission rod (31) extends through the top sealing plate (5) and the heating tank body (21) to the top of the heating tank body (21). The second telescopic rod (42) is fixedly connected to the main support (1). The two ends of the limiting support rod (41) are rotatably connected to the top sealing plate (5) and the bottom sealing plate (6) respectively. The sealing block (46) is located below the air guide hole (47).

2. The wastewater treatment equipment for the production of bactericidal pesticides according to claim 1, characterized in that: The heating tank body (21) has a heating jacket inside. The air extraction port (22) is connected to a suction device. The feed inlet (23) is connected to a raw material tank. A one-way valve is provided in the middle of the feed inlet (23). The feed inlet (23) is connected to the evaporation chamber (25). The air extraction port (22) passes through the top sealing plate (5) and is connected to the evaporation chamber (25). The discharge port (24) is connected to the collection chamber (26).

3. The wastewater treatment equipment for the production of bactericidal pesticides according to claim 1, characterized in that: The top sealing plate (5) is located on the upper side of the transmission rod (31), the bottom sealing plate (6) is located on the lower side of the partition plate (7) and is engaged with the partition plate (7), and the bottom sealing plate (6) and the second motor (8) are located inside the collection chamber (26).

4. The wastewater treatment equipment for the production of bactericidal pesticides according to claim 1, characterized in that: The second motor (8) is rotatably connected to the heating tank body (21), the bottom of the second motor (8) is fixedly connected to the salt pushing scraper (9), and the top of the second motor (8) is slidably connected to the limiting support rod (41).

5. A method for treating wastewater from the production of bactericidal pesticides, using the wastewater treatment equipment for the production of bactericidal pesticides according to any one of claims 1 to 4, characterized in that: Includes the following steps: S1. The second telescopic rod (42) pulls the limiting support rod (41) upward, so that the limiting support rod (41) pulls the bottom sealing plate (6) to move, so that the bottom sealing plate (6) and the partition plate (7) are locked together. Then, the high-salt waste liquid is transported into the heating tank body (21) through the feed port (23). Then, the suction device connected to the air extraction port (22) draws air from the heating tank body (21) to the outside, so that the evaporation chamber (25) becomes a negative pressure state. S2. When air is drawn from the inside of the evaporation chamber (25) through the air extraction port (22), the third telescopic rod (45) pulls the sealing block (46) downward to make the air guide hole (47) connect with the ventilation channel (43), so that the evaporation chamber (25) and the collection chamber (26) are connected through the ventilation channel (43), the connecting port (44) and the air guide hole (47), so that the heating tank body (21) simultaneously draws air from the inside of the collection chamber (26) and simultaneously draws the inside of the collection chamber (26) into a negative pressure state. S3. The high-salt waste liquid is heated by the main body of the heating tank (21), while the air extraction port (22) continuously draws in water vapor. At the same time, the first motor (32) drives the transmission rod (31) to rotate, so that the transmission rod (31) drives the support frame (33) and the vertical scraper (34) to rotate, so as to stir the high-salt waste liquid and scrape off the salt crystals condensed on the inner wall of the main body of the heating tank (21). At the same time, the one-way valve at the feed port (23) is opened to replenish the high-salt waste liquid into the main body of the heating tank (21). Meanwhile, the first telescopic rod (39) periodically extends and retracts, and drives the scraper (36) to move up and down through the support ring (37). The scraper scrapes off the salt crystals condensed on the outer surface of the transmission rod (31). At the same time, the scraper (36) pulls the vertical scraper (34) to move through the traction rod (35), so that the vertical scraper (34) slides from the inside of the support frame (33) and scrapes off the salt crystals on the surface of the vertical scraper (34). S4. After the salt solution has evaporated and crystallized, the third telescopic rod (45) pushes the sealing block (46) upward to block the air guide hole (47). Then, the second telescopic rod (42) pushes the limiting support rod (41) downward to release the bottom sealing plate (6) and the partition plate (7) from the closed state, so that the salt crystals are pushed into the collection chamber (26) by the bottom scraper (38). Then, the second telescopic rod (42) pulls the limiting support rod (41) to reset, so that the bottom sealing plate (6) and the partition plate (7) are closed. Under the condition that the temperature and negative pressure inside the evaporation chamber (25) remain unchanged, the salt crystals are discharged.

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