Production waste liquid on-line recovery device

Abstract

The invention discloses a production waste liquid online recovery device, and relates to the technical field of chemical waste liquid recovery, the production waste liquid online recovery device comprises a treatment box, a liquid inlet pipe is fixedly installed above the treatment box, a motor is fixedly installed above the treatment box, and a discharge pipe is fixedly installed on the side surface of the treatment box; a rotating shaft is fixedly installed at the output end of the motor, a filter plate is fixedly installed in the treatment box, a treatment device used for conducting biological membrane treatment on waste liquid is arranged in the treatment box, the treatment device comprises a recovery plate, and the recovery plate is fixedly installed on the inner wall of the treatment box. An oxygen cylinder is fixedly mounted on the circumferential surface of the rotating shaft, and a biological membrane plate is fixedly mounted on the circumferential surface of the oxygen cylinder, so that the waste liquid treatment efficiency can be improved, the cost can be reduced, the stability of the system can be enhanced, the environment adaptability is good, and the generation of secondary pollution can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical waste liquid recovery, and specifically to an on-line production waste liquid recovery device. Background Art

[0002] The purpose of an on-line production waste liquid recovery device is to achieve effective treatment and resource recovery of waste liquid, reduce environmental pollution caused by waste liquid, and at the same time improve the resource utilization efficiency of the production process. Such devices are usually used in the production process, capable of recovering and reusing useful components in the waste liquid, reducing emissions and waste generation.

[0003] The patent with the patent announcement number CN212833278U relates to an on-line chemical waste liquid recovery device. A workbench is provided at the top of the box body. A waste liquid tank is provided on one side of the workbench. A support rod is provided on one side above the waste liquid tank. An infrared sensor is provided on the side of the support rod close to the waste liquid tank. A conveying pipeline is provided at the top of the support rod. The beneficial effects are as follows: By setting a biochemical treatment layer and a second filtration layer, the chemical waste liquid is treated by the biochemical treatment layer and then filtered by the second filtration layer, ensuring thorough recovery and treatment of the chemical waste liquid, ensuring the cleanliness of the nearby water resources, reducing the harmfulness of the chemical waste liquid. At the same time, by setting a water pump and a water quality analyzer, the water quality analyzer analyzes the treated chemical waste liquid, and the water pump pumps the analyzed water into the conveying pipeline, enabling the recycling of water resources and reducing water consumption.

[0004] In the above patent, the chemical waste liquid is treated by the biochemical treatment layer and then filtered by the second filtration layer to ensure thorough recovery and treatment of the chemical waste liquid. However, during the treatment process, due to the large amount of impurities in the waste liquid and difficulty in thorough treatment, it may lead to low efficiency in waste liquid recovery and treatment. Therefore, an on-line production waste liquid recovery device with a biological membrane for treatment is designed. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an on-line production waste liquid recovery device, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: An on-line production waste liquid recovery device, including a treatment tank, an inlet pipe is fixedly installed above the treatment tank, a motor is fixedly installed above the treatment tank, a discharge pipe is fixedly installed on the side of the treatment tank, a rotating shaft is fixedly installed at the output end of the motor, a filter plate is fixedly installed inside the treatment tank, and a treatment device for performing biofilm treatment on the waste liquid is arranged inside the treatment tank. The treatment device includes a recovery plate, the recovery plate is fixedly installed on the inner wall of the treatment tank, an oxygen cylinder is fixedly installed on the circumferential surface of the rotating shaft, a biofilm plate is fixedly installed on the circumferential surface 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 dial plate is fixedly installed on the circumferential surface 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 one is fixedly installed above the sliding shaft. The output end of the motor rotates to drive 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 stirs and contacts the waste liquid, making the filtration cleaner.

[0007] According to the above technical solution, the side surface of the dial plate is provided with an inclined surface one. The inclined surface one of the dial plate is used to extrude the square plate one. The rotation of the dial plate will contact and extrude the square plate one.

[0008] According to the above technical solution, a first spring is arranged between the bottom of the horizontal plate and the upper part of the sliding shaft. The first spring is used to reset the sliding shaft. The downward movement of the square plate one will drive the sliding shaft at the bottom to move downward.

[0009] According to the above technical solution, a scraping and cleaning device for scraping and cleaning the filter plate is arranged on the surface of the filter plate. The scraping and cleaning device includes a sliding plate. A thread is arranged on the circumferential surface above the rotating shaft. 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 surface of the sliding plate. A connecting plate is fixedly installed on the circumferential surface of the connecting shaft. A scraping plate 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 treatment tank. A knocking plate is slidably installed on the inner wall of the treatment tank. A mounting shaft is rotatably installed on the side surface of the fixing plate. A gear is fixedly installed on the circumferential surface of the mounting shaft. A cam is fixedly installed at the end of the mounting shaft away from the gear. When the connecting plate moves towards the end away from the motor, it will drive the scraping plate to move towards the end away from the motor. When the scraping plate moves towards the end away from the motor, it will clean the surface of the filter plate.

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

[0011] According to the above technical solution, a second spring is arranged between the upper part of the knocking plate and the upper inner wall of the treatment tank. The second spring is used to reset the knocking plate. The L-shaped rack engages with the gear. When the L-shaped rack moves downward, it will engage and rotate the gear.

[0012] According to the above technical solution, a spraying device for spraying the inside of the treatment tank is arranged on the side of the treatment tank. The spraying device includes a medicine tank. The medicine tank is fixedly installed on the side of the treatment tank. An L-shaped plate slides through the side of the treatment tank. A square plate II is slidably installed inside the medicine tank. A mounting plate is fixedly installed inside the medicine tank. A medicine inlet pipe is fixedly penetrated through the bottom of the medicine tank. When the L-shaped plate moves toward the end away from the scraping plate, it will contact and squeeze the square plate II to move downward. When the square plate II moves downward, it will squeeze the medicine in the medicine tank. At the same time, the medicine in the medicine tank will enter the inside of the treatment tank from the medicine inlet pipe.

[0013] According to the above technical solution, a third spring is arranged between the side of the L-shaped plate and the side of the treatment tank. The third spring is used to reset the L-shaped plate. A fourth spring is arranged between the upper part of the square plate II and the bottom of the mounting plate. The fourth spring is used to reset the square plate II. When the L-shaped plate moves toward the end away from the scraping plate, it will contact and squeeze the square plate II to move downward.

[0014] According to the above technical solution, the upper part of the square plate II is set as a second inclined surface. The second inclined surface on the square plate II is used to move the square plate II up and down. The square plate II will return to the initial state under the action of the fourth spring.

[0015] The present invention provides an on-line production waste liquid recycling device. It has the following beneficial effects: (1) For this on-line production waste liquid recycling device, by starting the motor, the output end of the motor rotates to drive 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 stirs and contacts the waste liquid, making the filtration cleaner, improving the efficiency of waste liquid treatment, reducing costs, enhancing the stability of the system, having good environmental adaptability, and helping to reduce the generation of secondary pollution. At the same time, the oxygen in the oxygen cylinder will enter the inside of the biofilm plate from the oxygen pipe to achieve a cyclic regeneration effect, which 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.

[0016] (2) The online recovery device for production waste liquid will drive the connecting plate to move toward the end away from the motor when the connecting shaft moves downward. When the connecting plate moves toward the end away from the motor, it will drive the scraper to move toward the end away from the motor. When the scraper moves toward the end away from the motor, it will clean the surface of the filter plate, which 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.

[0017] (3) The online recovery device for production waste liquid drives the cam to rotate by rotating the installation shaft. The rotation of the cam contacts and squeezes the knocking plate to move downward. The knocking plate moves downward and repeatedly knocks on the filter plate. This not only keeps the filter plate clean and prevents clogging and fouling, but also improves the efficiency of waste liquid treatment, reduces manual intervention and maintenance costs, and extends the life of the equipment. At the same time, it ensures the stable operation and efficient treatment of the waste liquid recovery device.

[0018] (4) The production waste liquid online recovery device will squeeze the medicine in the medicine box by moving the square plate 2 downward. At the same time, the medicine in the medicine box will enter the interior of the treatment box from the medicine inlet pipe, which can improve the effect of waste liquid treatment, optimize the physical and chemical properties, increase the waste liquid recovery efficiency, reduce the difficulty of operation and maintenance costs, and reduce environmental pollution, which is conducive to achieving an efficient, safe and sustainable waste liquid treatment process. When the L-shaped plate leaves the range of the square plate 2, the square plate 2 will return to its initial state under the action of the spring 4, achieving a quantitative recycling effect. The quantitative addition of small medicines can help the chemical waste liquid recovery device operate more efficiently, safely and environmentally friendly, while reducing costs and improving product quality, meeting the needs of modern production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a structural diagram of the rotating shaft and the motor of the present invention; Figure 3 This is a schematic structural diagram of the oxygen cylinder and the biofilm plate of the present invention; Figure 4 This is a schematic structural diagram of the spring 1 and the sliding shaft of the present invention; Figure 5 It is a structural schematic diagram of the filter plate and scraper of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure of the enlarged part A; Figure 7 It is a structural schematic diagram of the medicine box and square plate 2 of the present invention.

[0020] In the figure: 1, treatment tank; 2, liquid inlet pipe; 3, motor; 4, discharge 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, dial plate; 68, spring one; 69, baffle; 610, oxygen pipe; 611, square plate one; 71, sliding plate; 72, connecting shaft; 73, connecting plate; 74, scraper; 75, L-shaped rack; 76, fixing plate; 77, knocking plate; 78, spring two; 79, gear; 710, cam; 81, medicine box; 82, L-shaped plate; 83, spring three; 84, square plate two; 85, mounting plate; 86, spring four; 87, medicine inlet pipe. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 - 7 , an embodiment of the present invention is: an on-line production waste liquid recovery device, including a treatment tank 1, a liquid 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, an output end of the motor 3 is fixedly installed with a rotating shaft 5, a filter plate 51 is fixedly installed inside the treatment tank 1, a treatment device for performing biofilm treatment on the waste liquid is arranged inside the treatment tank 1, the treatment device includes a recovery plate 61, the recovery plate 61 is fixedly installed on the inner wall of the treatment tank 1, an oxygen cylinder 62 is fixedly installed on the circumferential surface of the rotating shaft 5, a biofilm plate 63 is 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 dial plate 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 one 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 drives the oxygen cylinder 62 to rotate, the rotation of the oxygen cylinder 62 drives the biofilm plate 63 to rotate, and the rotation of the biofilm plate 63 stirs and contacts the waste liquid, making the filtration cleaner.

[0023] The side of the dial plate 67 is provided with an inclined surface one, and the inclined surface one of the dial plate 67 is used to squeeze the square plate one 611, and the rotation of the dial plate 67 contacts and squeezes the square plate one 611.

[0024] A first spring 68 is arranged between the bottom of the horizontal plate 65 and the upper part of the sliding shaft 66. The first spring 68 is used to reset the sliding shaft 66. When the first square plate 611 moves downward, it will drive the sliding shaft 66 at the bottom to move downward.

[0025] During the operation of this embodiment: the waste liquid enters the treatment tank 1 from the liquid inlet pipe 2. The waste liquid will first pass through the filter plate 51 to preliminarily filter out the large particle impurities therein, and then enter the next layer. At the same time, the motor 3 is started. The output end of the motor 3 rotates to drive the rotating shaft 5 to rotate. The rotation of the rotating shaft 5 drives the oxygen cylinder 62 to rotate. The rotation of the oxygen cylinder 62 drives the biofilm plate 63 to rotate. The rotation of the biofilm plate 63 stirs and contacts the waste liquid, making the filtration cleaner, improving the efficiency of waste liquid treatment, reducing costs, enhancing the stability of the system, having good environmental adaptability, and helping to reduce the generation of secondary pollution. At the same time, the rotation of the rotating shaft 5 drives the baffle plate 67 to rotate. The baffle plate 67 rotates and contacts and presses the first square plate 611. When the first square plate 611 is pressed, the first square plate 611 will move downward. The downward movement of the first square plate 611 drives the sliding shaft 66 at the bottom to move downward. The downward movement of the sliding shaft 66 drives the baffle plate 69 at the bottom to move downward. When the baffle plate 69 moves downward, it will release the blockage of the oxygen pipe 610. At this time, the oxygen in the oxygen cylinder 62 will enter the inside of the biofilm plate 63 from the oxygen pipe 610, so as to achieve an effect of circular regeneration, which 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.

[0026] Please refer to Figures 1 - 7 , on the basis of the above embodiment, in another embodiment of the present invention, a scraping and cleaning device for scraping and cleaning the filter plate 51 is arranged on the surface of 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 threads. The sliding plate 71 is slidably installed on the threads of the circumferential surface of the rotating shaft 5. A connecting shaft 72 is fixedly installed on the side surface of the sliding plate 71. A connecting plate 73 is fixedly installed on the circumferential surface of the connecting shaft 72. A scraping plate 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 treatment tank 1. A knocking plate 77 is slidably installed on the inner wall of the treatment tank 1. A mounting shaft is rotatably installed on the side surface of the fixing plate 76. A gear 79 is fixedly installed on the circumferential surface of the mounting shaft. A cam 710 is fixedly installed at the end of the mounting shaft away from the gear 79. When the connecting plate 73 moves towards the end away from the motor 3, it will drive the scraping plate 74 to move towards the end away from the motor 3. When the scraping plate 74 moves towards the end away from the motor 3, it will clean the surface of the filter plate 51.

[0027] One end of the connecting plate 73 away from the connecting shaft 72 is fixedly connected to the scraping plate 74. The upper part of the knocking plate 77 is set as an arc surface, and the arc surface is used to move the knocking plate 77 up and down. When the knocking plate 77 moves downward, it will repeatedly knock on the filter plate 51.

[0028] A second spring 78 is arranged between the upper part of the knocking plate 77 and the upper inner wall of the treatment box 1. The second spring 78 is used to reset the knocking 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 and make it rotate.

[0029] A spraying device for spraying medicine inside the treatment box 1 is arranged on the side of the treatment box 1. The spraying device includes a medicine box 81. The medicine box 81 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 second square plate 84 is slidably installed inside the medicine box 81. A mounting plate 85 is fixedly installed inside the medicine box 81. A medicine inlet pipe 87 is fixedly penetrated through the bottom of the medicine box 81. When the L-shaped plate 82 moves toward the end away from the scraping plate 74, it will contact and squeeze the second square plate 84 to move downward. When the second square plate 84 moves downward, it will squeeze the medicine in the medicine box 81. At the same time, the medicine in the medicine box 81 will enter the inside of the treatment box 1 from the medicine inlet pipe 87.

[0030] A one-way valve is arranged inside the medicine box 81. A third spring 83 is arranged between the side of the L-shaped plate 82 and the side of the treatment box 1. The third spring 83 is used to reset the L-shaped plate 82. A fourth spring 86 is arranged between the upper part of the second square plate 84 and the bottom of the mounting plate 85. The fourth spring 86 is used to reset the second square plate 84. When the L-shaped plate 82 moves toward the end away from the scraping plate 74, it will contact and squeeze the second square plate 84 to move downward.

[0031] The upper part of the second square plate 84 is set as a second inclined surface. The second inclined surface on the second square plate 84 is used to move the second square plate 84 up and down. The second square plate 84 will return to its initial state under the action of the fourth spring 86.

[0032] During the operation of this embodiment: Meanwhile, when the rotating shaft 5 rotates, it will drive the sliding plate 71 to move downward under the action of the upper-end thread. The downward movement of the sliding plate 71 will drive the connecting shaft 72 to move downward. When the connecting shaft 72 moves downward, it will drive the connecting plate 73 to move towards the end away from the motor 3. When the connecting plate 73 moves towards the end away from the motor 3, it will drive the scraping plate 74 to move towards the end away from the motor 3. When the scraping plate 74 moves towards the end away from the motor 3, it will clean the surface of the filter plate 51, which can effectively maintain the efficient operation of the filtration system, extend the service life of the equipment, improve the automation level, reduce the maintenance cost, and ensure the stability and environmental protection of the waste liquid treatment process. Meanwhile, when the sliding plate 71 moves downward, it will drive the L-shaped rack 75 to move downward. When the L-shaped rack 75 moves downward, it will engage the gear 79 to rotate. The rotation of the gear 79 will drive the installation shaft to rotate. The rotation of the installation shaft will drive the cam 710 to rotate. The rotation of the cam 710 will contact and squeeze the knocking plate 77 to move downward. The downward movement of the knocking plate 77 will repeatedly knock the filter plate 51. This can not only keep the filter plate 51 clean, prevent blockage and fouling, but also improve the efficiency of waste liquid treatment, reduce manual intervention and maintenance cost, extend the equipment life, and ensure the stable operation and efficient treatment of the waste liquid recovery device.

[0033] Meanwhile, when the scraping plate 74 moves towards the end away from the motor 3, it will contact and squeeze the L-shaped plate 82 to move towards the end away from the scraping plate 74. The movement of the L-shaped plate 82 towards the end away from the scraping plate 74 will contact and squeeze the square plate II 84 to move downward. The downward movement of the square plate II 84 will squeeze the medicament in the medicine box 81. Meanwhile, the medicament in the medicine box 81 will enter the interior of the treatment box 1 through the medicine inlet pipe 87, which can improve the effect of waste liquid treatment, optimize the physical and chemical properties, increase the waste liquid recovery efficiency, reduce the operation difficulty and maintenance cost, and reduce environmental pollution at the same time, contributing to the realization of an efficient, safe and sustainable waste liquid treatment process. Meanwhile, when the scraping plate 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 the spring III 83. When the L-shaped plate 82 is out of the range of the square plate II 84, the square plate II 84 will return to its initial state under the action of the spring IV 86, achieving a quantitative recycling effect. The quantitative feeding of small medicaments can help the chemical waste liquid recovery device operate more efficiently, safely and environmentally friendly, reduce costs and improve product quality at the same time, meeting the requirements of modern production.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An on-line waste liquid recycling device for production, comprising a treatment tank (1), characterized in that: Above the treatment tank (1), a liquid inlet pipe (2) is fixedly installed. Above the treatment tank (1), a motor (3) is fixedly installed. On the side of the treatment tank (1), a discharge pipe (4) is fixedly installed. At the output end of the motor (3), a rotating shaft (5) is fixedly installed. Inside the treatment tank (1), a filter plate (51) is fixedly installed. Inside the treatment tank (1), a treatment device for biofilm treatment of waste liquid is provided. The treatment device includes a recovery plate (61). The recovery plate (61) is fixedly installed on the inner wall of the treatment tank (1). On the circumferential surface of the rotating shaft (5), an oxygen cylinder (62) is fixedly installed. On the circumferential surface of the oxygen cylinder (62), a biofilm plate (63) is fixedly installed. Below the filter plate (51), a vertical plate (64) is fixedly installed. On the side of the vertical plate (64), a horizontal plate (65) is fixedly installed. On the side of the vertical plate (64), a sliding shaft (66) is slidably installed. On the circumferential surface of the rotating shaft (5), a dial plate (67) is fixedly installed. At the bottom of the sliding shaft (66), a baffle plate (69) is fixedly installed. On the surface of the oxygen cylinder (62), an oxygen pipe (610) is opened. Above the sliding shaft (66), a square plate one (611) is fixedly installed.

2. The on-line recovery device for production waste liquid according to claim 1, characterized in that: On the side of the dial plate (67), there is an inclined surface one for extruding the square plate one (611). Between the bottom of the horizontal plate (65) and the upper part of the sliding shaft (66), a spring one (68) for resetting the sliding shaft (66) is provided.

3. The on-line recycling device for production waste liquid according to claim 2, characterized in that: On the surface of the filter plate (51), a scraping and cleaning device for scraping and cleaning the filter plate (51) is provided. The scraping and cleaning device includes a sliding plate (71). On the upper circumferential surface of the rotating shaft (5), there is a thread. The sliding plate (71) is slidably installed on the thread of the circumferential surface of the rotating shaft (5). On the side of the sliding plate (71), a connecting shaft (72) is fixedly installed. On the circumferential surface of the connecting shaft (72), a connecting plate (73) is fixedly installed. On the surface of the filter plate (51), a scraper (74) is slidably installed. On the circumferential surface of the sliding plate (71), an L-shaped rack (75) is fixedly installed. Inside the treatment tank (1), a fixing plate (76) is fixedly installed. On the inner wall of the treatment tank (1), a knocking plate (77) is slidably installed. On the side of the fixing plate (76), a mounting shaft is rotatably installed. On the circumferential surface of the mounting shaft, a gear (79) is fixedly installed. At the end of the mounting shaft away from the gear (79), a cam (710) is fixedly installed.

4. An on-line waste liquid recovery device according to claim 3, characterized in that: One end of the connecting plate (73) away from the connecting shaft (72) is fixedly connected to the scraper (74). Above the knocking plate (77), there is an arc surface for moving the knocking plate (77) up and down.

5. The on-line recovery device for production waste liquid according to claim 4, characterized in that: Between the upper part of the knocking plate (77) and the upper part of the inner wall of the treatment tank (1), a spring two (78) for resetting the knocking plate (77) is provided. The L-shaped rack (75) is engaged with the gear (79).

6. An on-line recovery device for production waste liquid according to claim 5, characterized in that: A spraying device for spraying the inside of the processing box (1) is provided on the side of the processing box (1). The spraying device includes a medicine box (81) fixedly installed on the side of the processing box (1). An L-shaped plate (82) slidably penetrates through the side of the processing box (1). A second square plate (84) is slidably installed inside the medicine box (81). A mounting plate (85) is fixedly installed inside the medicine box (81). A medicine inlet pipe (87) fixedly penetrates through the bottom of the medicine box (81).

7. An on-line waste liquid recycling device according to claim 6, characterized in that: A third spring (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). A fourth spring (86) for resetting the second square plate (84) is provided between the upper part of the second square plate (84) and the bottom of the mounting plate (85).

8. An on-line waste liquid recycling device according to claim 7, characterized in that: An inclined surface two for moving the second square plate (84) up and down is provided above the second square plate (84). A one-way valve is provided inside the medicine box (81).

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