An on-line recovery device for production waste liquid

Abstract

This invention discloses an online wastewater recycling device, relating to the field of chemical wastewater recycling technology. The device includes a treatment tank, with an inlet pipe and a motor fixedly installed on the top of the tank. A discharge pipe is fixedly installed on the side of the tank, and a rotating shaft is fixedly installed at the output end of the motor. A filter plate is fixedly installed inside the tank, and a biofilm treatment device for treating the wastewater is also provided inside the tank. This device includes a recovery plate fixedly installed on the inner wall of the tank. An oxygen cylinder is fixedly installed on the circumferential surface of the rotating shaft, and a biofilm plate is fixedly installed on the circumferential surface of the oxygen cylinder. This device improves wastewater treatment efficiency, reduces costs, enhances system stability, exhibits good environmental adaptability, and helps reduce secondary pollution.

Description

Technical Field

[0001] This invention relates to the field of chemical waste liquid recycling technology, specifically to an online recycling device for production waste liquid. Background Technology

[0002] The purpose of an online wastewater recovery device is to achieve effective treatment and resource recovery of wastewater, reduce environmental pollution, and improve resource utilization efficiency in the production process. This type of device is typically used in production processes to recover and reuse useful components from wastewater, reducing emissions and waste generation.

[0003] Patent publication number CN212833278U relates to an online chemical waste liquid recycling device. The device includes a workbench at the top of a housing, a waste liquid tank on one side of the workbench, a support rod on the upper side of the waste liquid tank, an infrared sensor near the waste liquid tank on the support rod, and a conveying pipe at the top of the support rod. The beneficial effects are: by setting up a biochemical treatment layer and a second filtration layer, the biochemical treatment layer treats the chemical waste liquid, and the second filtration layer filters it, ensuring thorough recycling and treatment of the chemical waste liquid, maintaining the cleanliness of nearby water resources, and reducing the harmfulness of the chemical waste liquid. Simultaneously, by setting up a water pump and a water quality analyzer, the water quality analyzer analyzes the water quality of the treated chemical waste liquid, and the water pump pumps the analyzed water to the conveying pipe, enabling water resource recycling and reducing water consumption.

[0004] In the aforementioned patent, chemical waste liquid is treated through a biochemical treatment layer and then filtered through a second filtration layer to ensure thorough recycling and treatment. However, during the treatment process, due to the large number of impurities in the waste liquid, it is difficult to treat it thoroughly, which may lead to low efficiency in the recycling and treatment of waste liquid. Therefore, an online recycling device for production waste liquid with a biofilm for treatment was designed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an online waste liquid recycling device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an online wastewater recovery device, comprising a treatment tank, an inlet pipe fixedly installed above the treatment tank, a motor fixedly installed above the treatment tank, a discharge pipe fixedly installed on the side of the treatment tank, a rotating shaft fixedly installed at the output end of the motor, a filter plate fixedly installed inside the treatment tank, and a treatment device for biofilm treatment of the wastewater provided inside the treatment tank, the treatment device including a recovery plate fixedly installed on the inner wall of the treatment tank, and an oxygen cylinder fixedly installed on the circumferential surface of the rotating shaft. A biofilm plate is fixedly installed on the circumference of the oxygen cylinder. A vertical plate is fixedly installed below the filter plate. A horizontal plate is fixedly installed on the side of the vertical plate. A sliding shaft is slidably installed on the side of the vertical plate. A lever is fixedly installed on the circumference of the rotating shaft. A baffle is fixedly installed at the bottom of the sliding shaft. An oxygen pipe is opened on the surface of the oxygen cylinder. A square plate is fixedly installed above the sliding shaft. The output end of the motor rotates, which drives the rotating shaft to rotate. The rotation of the rotating shaft drives the oxygen cylinder to rotate. The rotation of the oxygen cylinder drives the biofilm plate to rotate. The rotation of the biofilm plate agitates and contacts the waste liquid, making the filtration cleaner.

[0007] According to the above technical solution, the side of the dial plate is set as an inclined surface, and the inclined surface of the dial plate is used to squeeze the square plate. When the dial plate rotates, it will contact and squeeze the square plate.

[0008] According to the above technical solution, a spring is provided between the bottom of the horizontal plate and the top of the sliding shaft. The spring is used to reset the sliding shaft. When the square plate moves downward, it will drive the sliding shaft at the bottom to move downward.

[0009] According to the above technical solution, the surface of the filter plate is provided with a scraping and cleaning device for scraping and cleaning the filter plate. The scraping and cleaning device includes a sliding plate. The upper circumferential surface of the rotating shaft is provided with a thread. The sliding plate is slidably installed on the thread on the circumferential surface of the rotating shaft. A connecting shaft is fixedly installed on the side of the sliding plate. A connecting plate is fixedly installed on the circumferential surface of the connecting shaft. A scraper is slidably installed on the surface of the filter plate. An L-shaped rack is fixedly installed on the circumferential surface of the sliding plate. A fixing plate is fixedly installed inside the processing box. A striking plate is slidably installed on the inner wall of the processing box. An installation shaft is rotatably installed on the side of the fixing plate. A gear is fixedly installed on the circumferential surface of the installation shaft. A cam is fixedly installed at the end of the installation shaft away from the gear. When the connecting plate moves to the end away from the motor, it will drive the scraper to move to the end away from the motor. When the scraper moves to the end away from the motor, it will clean the surface of the filter plate.

[0010] According to the above technical solution, the end of the connecting plate away from the connecting shaft is fixedly connected to the scraper, and the upper part of the striking plate is set as an arc surface. The arc surface is used to move the striking plate up and down. When the striking plate moves down, it will repeatedly strike the filter plate.

[0011] According to the above technical solution, a second spring is provided between the top of the striking plate and the top of the inner wall of the processing box. The second spring is used to reset the striking plate. The L-shaped rack meshes with the gear. When the L-shaped rack moves downward, it will mesh with the gear to rotate.

[0012] According to the above technical solution, a spraying device for spraying pesticides inside the treatment box is provided on the side of the treatment box. The spraying device includes a pesticide tank, which is fixedly installed on the side of the treatment box. An L-shaped plate slides through the side of the treatment box. A square plate is slidably installed inside the pesticide tank. An installation plate is fixedly installed inside the pesticide tank. An inlet pipe is fixedly installed through the bottom of the pesticide tank. When the L-shaped plate moves away from the scraper, it contacts and squeezes the square plate downward. The downward movement of the square plate squeezes the pesticide inside the pesticide tank. At the same time, the pesticide inside the pesticide tank enters the interior of the treatment box through the inlet pipe.

[0013] According to the above technical solution, a spring three is provided between the side of the L-shaped plate and the side of the processing box. The spring three is used to reset the L-shaped plate. A spring four is provided between the top of the square plate two and the bottom of the mounting plate. The spring four is used to reset the square plate two. When the L-shaped plate moves away from the scraper, it will contact and squeeze the square plate two downward.

[0014] According to the above technical solution, the upper part of the square plate two is provided as a slope two, which is used to move the square plate two up and down. The square plate two will return to its initial state under the action of the spring four.

[0015] This invention provides an online wastewater recycling device. It has the following beneficial effects:

[0016] (1) The online waste liquid recycling device can improve the efficiency of waste liquid treatment, reduce costs, enhance system stability, and have good environmental adaptability. It also helps to reduce the generation of secondary pollution. At the same time, the oxygen in the oxygen cylinder will enter the interior of the biofilm plate through the oxygen pipe to achieve a recycling effect. This can improve the treatment efficiency, reduce costs, realize resource recovery, and reduce environmental pollution, providing an efficient, environmentally friendly and economical solution for waste liquid treatment.

[0017] (2) When the connecting shaft moves downward, the connecting plate will move away from the motor. When the connecting plate moves away from the motor, the scraper will move away from the motor. When the scraper moves away from the motor, the surface of the filter plate will be cleaned. This can effectively maintain the efficient operation of the filtration system, extend the service life of the equipment, improve the level of automation, reduce maintenance costs, and ensure that the waste liquid treatment process is stable and environmentally friendly.

[0018] (3) The production waste liquid online recycling device will drive the cam to rotate by rotating the mounting shaft. The cam will contact and squeeze the striking plate to move downward. The downward movement of the striking plate will repeatedly strike the filter plate, which can not only keep the filter plate clean and prevent clogging and scale accumulation, but also improve the efficiency of waste liquid treatment, reduce manual intervention and maintenance costs, extend equipment life, and ensure the stable operation and efficient treatment of the waste liquid recycling device.

[0019] (4) The production waste liquid online recycling device, by moving the square plate two downward, will squeeze the agent in the medicine tank. At the same time, the agent in the medicine tank will enter the interior of the treatment tank through the inlet pipe, which can improve the waste liquid treatment effect, optimize the physicochemical properties, increase the waste liquid recycling efficiency, reduce the operation difficulty and maintenance cost, and reduce environmental pollution. It helps to achieve an efficient, safe and sustainable waste liquid treatment process. When the L-shaped plate leaves the range of the square plate two, the square plate two will return to the initial state under the action of the spring four, achieving a quantitative recycling effect. The quantitative addition of small agents can help the chemical waste liquid recycling device operate more efficiently, safely and environmentally, while reducing costs and improving product quality, which meets the needs of modern production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the rotating shaft and motor of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the oxygen cylinder and biofilm plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the spring and the sliding shaft of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the filter plate and scraper of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged structural diagram of part A in the middle;

[0026] Figure 7This is a schematic diagram of the structure of the medicine box and the square plate II of the present invention.

[0027] In the diagram: 1. Processing tank; 2. Inlet pipe; 3. Motor; 4. Outlet pipe; 5. Rotating shaft; 51. Filter plate; 61. Recovery plate; 62. Oxygen cylinder; 63. Biofilm plate; 64. Vertical plate; 65. Horizontal plate; 66. Sliding shaft; 67. Paddle plate; 68. Spring 1; 69. Baffle; 610. Oxygen pipe; 611. Square plate 1; 71. Slide plate; 72. Connecting shaft; 73. Connecting plate; 74. Scraper; 75. L-shaped rack; 76. Fixing plate; 77. Striking plate; 78. Spring 2; 79. Gear; 710. Cam; 81. Medicine box; 82. L-shaped plate; 83. Spring 3; 84. Square plate 2; 85. Mounting plate; 86. Spring 4; 87. Medicine inlet pipe. Detailed Implementation

[0028] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-7 One embodiment of the present invention is as follows: an online wastewater recycling device includes a treatment tank 1, an inlet pipe 2 fixedly installed above the treatment tank 1, a motor 3 fixedly installed above the treatment tank 1, a discharge pipe 4 fixedly installed on the side of the treatment tank 1, a rotating shaft 5 fixedly installed at the output end of the motor 3, a filter plate 51 fixedly installed inside the treatment tank 1, and a treatment device for biofilm treatment of the wastewater provided inside the treatment tank 1. The treatment device includes a recovery plate 61 fixedly installed on the inner wall of the treatment tank 1, an oxygen cylinder 62 fixedly installed on the circumferential surface of the rotating shaft 5, and a biofilm fixedly installed on the circumferential surface of the oxygen cylinder 62. A vertical plate 64 is fixedly installed below the filter plate 51, a horizontal plate 65 is fixedly installed on the side of the vertical plate 64, a sliding shaft 66 is slidably installed on the side of the vertical plate 64, a lever 67 is fixedly installed on the circumferential surface of the rotating shaft 5, a baffle 69 is fixedly installed at the bottom of the sliding shaft 66, an oxygen pipe 610 is opened on the surface of the oxygen cylinder 62, a square plate 611 is fixedly installed above the sliding shaft 66, the output end of the motor 3 rotates to drive the rotating shaft 5 to rotate, the rotation of the rotating shaft 5 will drive the oxygen cylinder 62 to rotate, the rotation of the oxygen cylinder 62 will drive the biofilm plate 63 to rotate, the rotation of the biofilm plate 63 will agitate and contact the waste liquid, making the filtration cleaner.

[0030] The side of the lever 67 is set as an inclined surface. The inclined surface of the lever 67 is used to squeeze the square plate 611. When the lever 67 rotates, it will contact and squeeze the square plate 611.

[0031] A spring 68 is provided between the bottom of the horizontal plate 65 and the top of the sliding shaft 66. The spring 68 is used to reset the sliding shaft 66. When the square plate 611 moves downward, it will cause the sliding shaft 66 at the bottom to move downward.

[0032] In this embodiment, during operation: waste liquid enters the treatment tank 1 through the inlet pipe 2. The waste liquid first undergoes preliminary filtration through the filter plate 51 to remove large particulate impurities, then proceeds to the next layer. Simultaneously, the motor 3 is activated, and the output of the motor 3 rotates, driving the rotating shaft 5. The rotation of the rotating shaft 5 drives the oxygen cylinder 62 to rotate, which in turn drives the biofilm plate 63 to rotate. The rotation of the biofilm plate 63 agitates and contacts the waste liquid, resulting in cleaner filtration. This improves waste liquid treatment efficiency, reduces costs, enhances system stability, provides good environmental adaptability, and helps reduce secondary pollution. Simultaneously, the rotation of the rotating shaft 5 drives the toggle plate 67 to rotate. The mechanism will contact and compress the square plate 611. When the square plate 611 is compressed, it will move downwards. This downward movement of the square plate 611 will cause the sliding shaft 66 at the bottom to move downwards. The downward movement of the sliding shaft 66 will cause the baffle 69 at the bottom to move downwards. When the baffle 69 moves downwards, it will release the seal on the oxygen pipe 610. At this time, the oxygen in the oxygen cylinder 62 will enter the interior of the biofilm plate 63 through the oxygen pipe 610, thereby achieving a recycling effect. This can improve treatment efficiency, reduce costs, realize resource recovery, and reduce environmental pollution, providing an efficient, environmentally friendly, and economical solution for waste liquid treatment.

[0033] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, the surface of the filter plate 51 is provided with a scraping and cleaning device for scraping and cleaning the filter plate 51. The scraping and cleaning device includes a slide plate 71, the upper circumferential surface of the rotating shaft 5 is provided with a thread, the slide plate 71 is slidably installed on the thread on the circumferential surface of the rotating shaft 5, a connecting shaft 72 is fixedly installed on the side of the slide plate 71, a connecting plate 73 is fixedly installed on the circumferential surface of the connecting shaft 72, a scraper 74 is slidably installed on the surface of the filter plate 51, an L-shaped rack 75 is fixedly installed on the circumferential surface of the slide plate 71, a fixing plate 76 is fixedly installed inside the processing box 1, a striking plate 77 is slidably installed on the inner wall of the processing box 1, an installation shaft is rotatably installed on the side of the fixing plate 76, a gear 79 is fixedly installed on the circumferential surface of the installation shaft, a cam 710 is fixedly installed at the end of the installation shaft away from the gear 79, when the connecting plate 73 moves to the end away from the motor 3, it will drive the scraper 74 to move to the end away from the motor 3, and when the scraper 74 moves to the end away from the motor 3, it will clean the surface of the filter plate 51.

[0034] The end of the connecting plate 73 away from the connecting shaft 72 is fixedly connected to the scraper 74. The upper part of the striking plate 77 is set as an arc surface, which is used to move the striking plate 77 up and down. When the striking plate 77 moves down, it will repeatedly strike the filter plate 51.

[0035] A second spring 78 is provided between the top of the striking plate 77 and the top of the inner wall of the processing box 1. The second spring 78 is used to reset the striking plate 77. The L-shaped rack 75 meshes with the gear 79. When the L-shaped rack 75 moves downward, it will mesh with the gear 79 to rotate.

[0036] A spraying device for spraying pesticides inside the treatment box 1 is provided on the side. The spraying device includes a pesticide tank 81, which is fixedly installed on the side of the treatment box 1. An L-shaped plate 82 slides through the side of the treatment box 1. A square plate 84 is slidably installed inside the pesticide tank 81. An installation plate 85 is fixedly installed inside the pesticide tank 81. An inlet pipe 87 is fixedly installed through the bottom of the pesticide tank 81. When the L-shaped plate 82 moves away from the scraper 74, it will contact and squeeze the square plate 84 downward. The downward movement of the square plate 84 will squeeze the pesticide inside the pesticide tank 81. At the same time, the pesticide inside the pesticide tank 81 will enter the interior of the treatment box 1 through the inlet pipe 87.

[0037] The medicine box 81 is equipped with a one-way valve. A spring 3 83 is installed between the side of the L-shaped plate 82 and the side of the treatment box 1. The spring 3 83 is used to reset the L-shaped plate 82. A spring 4 86 is installed between the top of the square plate 2 84 and the bottom of the mounting plate 85. The spring 4 86 is used to reset the square plate 2 84. When the L-shaped plate 82 moves away from the scraper 74, it will contact and squeeze the square plate 2 84 to move downward.

[0038] The upper part of the square plate 84 is set as the inclined surface 2. The inclined surface 2 on the square plate 84 is used to move the square plate 84 up and down. The square plate 84 will return to the initial state under the action of the spring 86.

[0039] In this embodiment, during operation: Simultaneously, the rotation of the rotating shaft 5 causes the sliding plate 71 to move downwards under the action of the upper thread. The downward movement of the sliding plate 71 causes the connecting shaft 72 to move downwards. The downward movement of the connecting shaft 72 causes the connecting plate 73 to move away from the motor 3. The movement of the connecting plate 73 away from the motor 3 causes the scraper 74 to move away from the motor 3. The movement of the scraper 74 away from the motor 3 cleans the surface of the filter plate 51, effectively maintaining the high-efficiency operation of the filtration system, extending the service life of the equipment, improving the level of automation, reducing maintenance costs, and ensuring waste... The liquid treatment process is stable and environmentally friendly. When the slide plate 71 moves downward, it drives the L-shaped rack 75 to move downward. When the L-shaped rack 75 moves downward, it meshes with the gear 79 and rotates. The rotation of the gear 79 drives the mounting shaft to rotate, which in turn drives the cam 710 to rotate. The rotation of the cam 710 contacts and squeezes the striking plate 77 to move downward. The downward movement of the striking plate 77 repeatedly strikes the filter plate 51, which not only keeps the filter plate 51 clean and prevents clogging and scale buildup, but also improves the efficiency of waste liquid treatment, reduces manual intervention and maintenance costs, extends equipment life, and ensures the stable operation and efficient treatment of the waste liquid recovery device.

[0040] Simultaneously, as scraper 74 moves away from motor 3, it contacts and compresses L-shaped plate 82, causing it to move away from scraper 74. This movement of L-shaped plate 82 further away from scraper 74 contacts and compresses square plate 84, causing it to move downwards. The downward movement of square plate 84 compresses the chemicals in the medicine tank 81. Simultaneously, the chemicals in the medicine tank 81 enter the treatment tank 1 through the inlet pipe 87. This improves the wastewater treatment effect, optimizes physicochemical properties, increases wastewater recovery efficiency, reduces operational difficulty and maintenance costs, and simultaneously reduces environmental pollution. This helps achieve an efficient, safe, and sustainable waste liquid treatment process. At the same time, when the scraper 74 moves away from one end of the L-shaped plate 82, the L-shaped plate 82 will return to its initial state under the action of spring three 83. When the L-shaped plate 82 moves away from the range of the square plate two 84, the square plate two 84 will return to its initial state under the action of spring four 86, achieving a quantitative recycling effect. The quantitative addition of small amounts of reagents can help the chemical waste liquid recycling device operate more efficiently, safely, and environmentally, while reducing costs and improving product quality, meeting the needs of modern production.

[0041] 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 variations 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. An online waste liquid recycling device, comprising a processing tank (1), characterized in that: An inlet pipe (2) is fixedly installed above the treatment tank (1), a motor (3) is fixedly installed above the treatment tank (1), a discharge pipe (4) is fixedly installed on the side of the treatment tank (1), a rotating shaft (5) is fixedly installed at the output end of the motor (3), a filter plate (51) is fixedly installed inside the treatment tank (1), and a treatment device for biofilm treatment of waste liquid is provided inside the treatment tank (1). The treatment device includes a recovery plate (61), which is fixedly installed on the inner wall of the treatment tank (1). An oxygen filter is fixedly installed on the circumferential surface of the rotating shaft (5). An oxygen cylinder (62) has a biofilm plate (63) fixedly installed on its circumference. A vertical plate (64) is fixedly installed below the filter plate (51). A horizontal plate (65) is fixedly installed on the side of the vertical plate (64). A sliding shaft (66) is slidably installed on the side of the vertical plate (64). A lever plate (67) is fixedly installed on the circumference of the rotating shaft (5). A baffle plate (69) is fixedly installed at the bottom of the sliding shaft (66). An oxygen pipe (610) is opened on the surface of the oxygen cylinder (62). A square plate (611) is fixedly installed above the sliding shaft (66). The rotation of the shaft (5) will drive the dial (67) to rotate. The rotation of the dial (67) will contact and squeeze the square plate (611). When the square plate (611) is squeezed, the square plate (611) will move downward. The downward movement of the square plate (611) will drive the sliding shaft (66) at the bottom to move downward. The downward movement of the sliding shaft (66) will drive the baffle (69) at the bottom to move downward. When the baffle (69) moves downward, it will release the seal on the oxygen tube (610).

2. The online wastewater recovery device according to claim 1, characterized in that: The side of the lever (67) is provided with an inclined surface for pressing the square plate (611), and a spring (68) for resetting the sliding shaft (66) is provided between the bottom of the horizontal plate (65) and the top of the sliding shaft (66).

3. The online wastewater recovery device according to claim 2, characterized in that: The surface of the filter plate (51) is provided with a scraping and cleaning device for scraping and cleaning the filter plate (51). The scraping and cleaning device includes a sliding plate (71). The upper circumferential surface of the rotating shaft (5) is provided with a thread. The sliding plate (71) is slidably installed on the thread on the circumferential surface of the rotating shaft (5). A connecting shaft (72) is fixedly installed on the side of the sliding plate (71). A connecting plate (73) is fixedly installed on the circumferential surface of the connecting shaft (72). A scraper (74) is slidably installed on the surface of the filter plate (51). An L-shaped rack (75) is fixedly installed on the circumferential surface of the sliding plate (71). A fixing plate (76) is fixedly installed inside the processing box (1). A striking plate (77) is slidably installed on the inner wall of the processing box (1). An installation shaft is rotatably installed on the side of the fixing plate (76). A gear (79) is fixedly installed on the circumferential surface of the installation shaft. A cam (710) is fixedly installed at the end of the installation shaft away from the gear (79).

4. The online wastewater recovery device according to claim 3, characterized in that: The end of the connecting plate (73) away from the connecting shaft (72) is fixedly connected to the scraper (74), and an arc surface is provided above the striking plate (77) for moving the striking plate (77) up and down.

5. The online wastewater recovery device according to claim 4, characterized in that: A spring 2 (78) for resetting the striking plate (77) is provided between the top of the striking plate (77) and the top of the inner wall of the processing box (1), and the L-shaped rack (75) meshes with the gear (79).

6. The online wastewater recovery device according to claim 5, characterized in that: The side of the treatment box (1) is provided with a spraying device for spraying the inside of the treatment box (1). The spraying device includes a medicine box (81), which is fixedly installed on the side of the treatment box (1). An L-shaped plate (82) slides through the side of the treatment box (1). A square plate (84) slides inside the medicine box (81). An installation plate (85) is fixedly installed inside the medicine box (81). An inlet pipe (87) is fixedly installed through the bottom of the medicine box (81).

7. The online wastewater recovery device according to claim 6, characterized in that: A spring three (83) for resetting the L-shaped plate (82) is provided between the side of the L-shaped plate (82) and the side of the processing box (1), and a spring four (86) for resetting the square plate two (84) is provided between the top of the square plate two (84) and the bottom of the mounting plate (85).

8. The online wastewater recovery device according to claim 7, characterized in that: The square plate 2 (84) is provided with an inclined surface 2 above it for moving the square plate 2 (84) up and down, and the medicine box (81) is provided with a one-way valve inside.

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