Online recovery device for chemical waste liquid

Abstract

The invention discloses a chemical waste liquid on-line recovery device, and relates to the technical field of chemical engineering, the chemical waste liquid on-line recovery device comprises a filtering tank and a purifying tank, a liquid inlet fixedly penetrates through the top of the filtering tank, the filtering tank and the purifying tank are connected through a pipeline, and the chemical waste liquid on-line recovery device further comprises a filtering device, a stirring device and a purifying device; wherein the filtering device comprises a motor, a transmission shaft, a first filtering plate, a scraping rod, a first bevel gear, a fixing block, a spiral shaft, a second bevel gear, a collecting box and a second filtering plate, the motor is fixedly installed at the top of the filtering tank, the scraping rod rotates to clean and scrape the surface of the filtering plate, and the situation that the first filtering plate is blocked, waste liquid circulation is affected, and the working efficiency is reduced is prevented; a scraping rod rotates to drive a bevel gear II to rotate, the bevel gear II rotates to drive a spiral shaft to rotate, and scraped impurities are pushed to the edge of the inner wall of the filtering tank, so that the impurities are conveniently collected by a collecting box.

Description

Technical Field

[0001] The invention relates to the technical field of chemical industry, in particular to an online recovery device for chemical waste liquid. Background Art

[0002] The chemical industry generates a large amount of waste liquid during the production process. These waste liquids usually contain various harmful substances, such as heavy metals (mercury, cadmium, lead, etc.), organic solvents (benzene, toluene, xylene, etc.), acids and alkalis, and various toxic and harmful chemicals. If these waste liquids are discharged directly without treatment, they will cause serious pollution to the environment, leading to pollution of soil, water and air, and endangering the ecological balance and human health.

[0003] The patent with patent announcement number CN222647671U involves a recycling box, wherein the left side of the top of the recycling box is connected to a filter assembly, and the filter assembly includes a filter box and a box cover. The left side of the filter box is fixedly connected to an electric push rod, the inner cavity of the filter box is provided with a filter mechanism, and the left side of the box cover is fixedly connected to a movable plate. By setting up a recycling box, the patent can purify and filter wastewater and collect and store it. By setting up the filter assembly, the wastewater entering the recycling box can be filtered by the filter mechanism. By setting up the electric push rod and the movable plate, the box cover can be raised to a height, so that the user can replace the filter mechanism. By setting up the stirring assembly, the filtered wastewater entering the recycling box can be stirred, which can facilitate the full mixing of the purification medicine added by the user with the wastewater, thereby improving the wastewater treatment effect. In the above patent, through the setting of the filter component, the wastewater entering the recovery box can be filtered by the filter mechanism, and through the setting of the electric push rod and the movable plate, the box cover can be lifted to a higher level, so that the user can replace the filter mechanism conveniently. However, when filtering the waste liquid, as the filtering process proceeds, solid particles and other impurities will gradually accumulate on the surface of the filter plate, and the filter plate is easily clogged. The filter plate needs to be replaced frequently, which is time-consuming and labor-intensive, and reduces work efficiency. At the same time, the filtered impurities are not collected and processed in a centralized manner, which increases the workload of subsequent staff. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an online chemical waste liquid recovery device, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an online chemical waste liquid recovery device, comprising a filter tank and a purification tank, wherein a liquid inlet is fixedly penetrated through the top of the filter tank, and the filter tank and the purification tank are connected by a pipeline, and further comprising a filtering device, a stirring device and a purification device; The filter device comprises a motor, a transmission shaft, a No. 1 filter plate, a scraper rod, a bevel gear 1, a fixed block, a spiral shaft, a bevel gear 2, a collecting box and a No. 2 filter plate, the motor is fixedly mounted on the top of the filter tank, the transmission shaft is fixedly mounted on the output end of the motor, the No. 1 filter plate is fixedly mounted on the inner wall of the filter tank, the scraper rod is fixedly mounted on the circumferential surface of the transmission shaft, the bevel gear 1 is fixedly mounted on the top of the No. 1 filter plate, the fixed block is fixedly mounted on the surface of the scraper rod, the spiral shaft rotates and passes through the fixed block, the bevel gear 2 is fixedly mounted on the circumferential surface of the spiral shaft, the collecting box is fixedly mounted on the circumferential surface of the filter tank, and the No. 2 filter plate is fixedly mounted on the inner wall of the collecting box. When the motor starts, the transmission shaft rotates, and the rotation of the transmission shaft drives the scraper rod to rotate, scraping and cleaning the surface of the No. 1 filter plate to prevent the No. 1 filter plate from being blocked and affecting the circulation of waste liquid, the rotation of the scraper rod drives the fixed block to revolve, the revolution of the fixed block drives the spiral shaft to revolve, and the revolution of the spiral shaft drives the bevel gear 2 to revolve, because the bevel gear 2 is meshed with the bevel gear 1.

[0006] According to the above technical solution, the transmission shaft rotates and passes through the filter tank, the transmission shaft rotates and passes through bevel gear one, the scraper rod is rotatably connected to the top of the No. 1 filter plate, the bevel gear one is engaged with bevel gear two, a collection hole is opened on the surface of the collection box, the collection hole is connected to the filter tank, a water flow hole is opened on the surface of the collection box, the water flow hole is connected to the filter tank, which facilitates the scraper rod to clean the surface of the No. 1 filter plate.

[0007] According to the above technical solution, the stirring device includes bevel gear three, a rotating shaft, bevel gear four and a stirring rod. Bevel gear three is fixedly mounted on the circumferential surface of the transmission shaft, and the rotating shaft rotates through the purification tank. Bevel gear four is fixedly mounted on the circumferential surface of the rotating shaft. The stirring rod is fixedly mounted on the circumferential surface of the rotating shaft. The rotation of the transmission shaft drives bevel gear three to rotate, the rotation of bevel gear three drives bevel gear four to rotate, the rotation of bevel gear four drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the stirring rod to rotate, thereby stirring the waste liquid and the reagent.

[0008] According to the above technical solution, the stirring device also includes a feed port, a sealing plate, a hammer rod and a sliding rod. The feed port is fixed through the top of the purification tank, the sealing plate is slidably installed on the inner wall of the feed port, the hammer rod is fixedly installed on the bottom of the sealing plate, one end of the sliding rod is fixedly installed on the circumferential surface of the hammer rod, and the other end of the sliding rod is slidably connected to the inner wall of the feed port. The stirring rod rotates to contact the hammer rod and squeeze the hammer rod. The hammer rod moves upward under the extrusion force, and the upward movement of the hammer rod drives the sealing plate to move upward to open the seal of the feed port.

[0009] According to the above technical solution, the bevel gear three is meshed with the bevel gear four, a spring No. 1 for resetting the slide rod is provided between the slide rod and the feed port, and the side of the hammer rod close to the stirring rod is an inclined surface, which is convenient for squeezing the hammer rod.

[0010] According to the above technical solution, the purification device includes a reflux plate, a circular shaft and fan blades. The reflux plate is slidably installed on the circumferential surface of the rotating shaft. A square hole is opened on the surface of the reflux plate. The circular shaft is rotatably installed on the inner wall of the square hole. The fan blades are fixedly installed on the circumferential surface of the circular shaft. The rotation of the rotating shaft drives the reflux plate to move back and forth through the reciprocating thread groove. When the reflux plate moves in the direction close to the stirring rod, the waste liquid is refluxed.

[0011] According to the above technical solution, the purification device also includes a square plate, an air outlet pipe, an activated carbon box, a receiving rod, a spring piece, an arc block and a connecting rod. The square plate is fixedly mounted on the side of the reflux plate close to the stirring rod, the air outlet pipe is fixedly passed through the top of the purification tank, the activated carbon box is slidably mounted on the inner wall of the air outlet pipe, the receiving rod is fixedly mounted on the bottom of the activated carbon box, the spring piece is fixedly mounted on the side of the receiving rod close to the stirring rod, the arc block is fixedly mounted on the inner wall of the activated carbon box, one end of the connecting rod is rotatably mounted on the bottom of the receiving rod, and the other end of the connecting rod is rotatably connected to the top of the square plate. When the reflux plate moves in the direction close to the stirring rod, it drives the connecting rod to move in the direction close to the stirring rod. The connecting rod moves in the direction close to the stirring rod to squeeze the receiving rod. The receiving rod moves upward under the extrusion force, and the upward movement of the receiving rod drives the activated carbon box upward.

[0012] According to the above technical solution, a reciprocating thread groove is provided on the circumferential surface of the rotating shaft, and the reflux plate is threadedly connected to the circumferential surface of the rotating shaft, so that the reflux plate can move back and forth to reflux the waste liquid.

[0013] The present invention provides an online chemical waste liquid recovery device, which has the following beneficial effects: (1) This invention filters the waste liquid through the filter plate, which can effectively intercept solid impurities, particulate matter, etc. in the waste liquid, so that the waste liquid can be initially purified and convenient for subsequent recycling. At the same time, the surface of the filter plate is cleaned and scraped by the rotation of the scraper rod to prevent the No. 1 filter plate from being blocked, affecting the flow of waste liquid and reducing work efficiency. The rotation of the scraper rod drives the rotation of the bevel gear No. 2, and the rotation of the bevel gear No. 2 drives the spiral shaft to rotate, pushing the scraped impurities to the edge of the inner wall of the filter tank, making it convenient for the collection box to collect the impurities and convenient for subsequent staff to carry out centralized processing.

[0014] (2) This invention adds a reagent through the feed port to neutralize the waste liquid, so that the waste liquid reaches the recycling standard. At the same time, the bevel gear drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the stirring rod to rotate, stirring the waste liquid and the reagent, so that the waste liquid and the reagent are better dissolved, so that the waste liquid reaches the recycling standard. At the same time, the stirring rod rotates to squeeze the hammer rod upward to control the amount of reagent fed, thereby preventing excessive reagent feeding, resulting in reagent waste and increased costs.

[0015] (3) This invention uses a reflux plate to move the waste liquid to reflux, thereby increasing the contact time between the waste liquid and the reagent, allowing the waste liquid and the reagent to fully dissolve. At the same time, the fan blades are driven by water flow to rotate, stirring the waste liquid, thereby better increasing the dissolution rate of the waste liquid and the reagent, and making the waste liquid meet the recycling standards. The gas generated in the waste liquid is purified through the exhaust pipe and the activated carbon box to prevent harmful gases from being discharged into the atmosphere and causing pollution. The reflux plate moves back and forth, driving the activated carbon box to move back and forth and generating vibration, so that the activated carbon in the activated carbon box can better contact with the harmful gas, purify the harmful gas, improve the purification effect of the harmful gas, and prevent the gas from being discharged into the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the filter tank of the present invention; Figure 3 For the present invention Figure 2 Middle A is a schematic diagram of the enlarged structure; Figure 4 This is a schematic diagram of the position structure of the rotating shaft and the purification tank of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the feed port of the present invention; Figure 6 This is a schematic diagram of the structure of the rotating shaft and the return plate of the present invention; Figure 7 For the present invention Figure 6 Middle B is a schematic diagram of the enlarged structure.

[0017] In the figure: 1. Filter tank; 2. Purification tank; 3. Liquid inlet; 4. Pipeline; 51. Motor; 52. Drive shaft; 53. Filter plate No. 1; 54. Scraper; 55. Bevel gear No. 1; 56. Fixed block; 57. Screw shaft; 58. Bevel gear No. 2; 59. Collecting box; 510. Filter plate No. 2; 61. Bevel gear No. 3; 62. Rotating shaft; 63. Bevel gear No. 4; 64. Stirring rod; 65. Feed inlet; 66. Sealing plate; 67. Hammer rod; 68. Sliding rod; 71. Reflux plate; 72. Round shaft; 73. Fan blade; 74. Square plate; 75. Exhaust pipe; 76. Activated carbon box; 77. Receiver rod; 78. Shrapnel; 79. Arc block; 710. Connecting rod. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 7 , one embodiment of the present invention is: an online chemical waste liquid recovery device, including a filter tank 1 and a purification tank 2, the top of the filter tank 1 is fixedly penetrated with a liquid inlet 3, the filter tank 1 and the purification tank 2 are connected by a pipe 4, wherein the filtering device includes a motor 51, a transmission shaft 52, a first filter plate 53, a scraper 54, a bevel gear 1 55, a fixed block 56, a spiral shaft 57, a bevel gear 2 58, a collecting box 59 and a second filter plate 510, the motor 51 is fixedly mounted on the top of the filter tank 1, the transmission shaft 52 is fixedly mounted on the output end of the motor 51, the first filter plate 53 is fixed It is fixedly installed on the inner wall of the filter tank 1, the scraper rod 54 is fixedly installed on the circumferential surface of the transmission shaft 52, the bevel gear 1 55 is fixedly installed on the top of the No. 1 filter plate 53, the fixed block 56 is fixedly installed on the surface of the scraper rod 54, the spiral shaft 57 rotates through the fixed block 56, the bevel gear 2 58 is fixedly installed on the circumferential surface of the spiral shaft 57, the collecting box 59 is fixedly installed on the circumferential surface of the filter tank 1, the No. 2 filter plate 510 is fixedly installed on the inner wall of the collecting box 59, the waste liquid is filtered, and at the same time, the impurities are scraped and pushed by the scraper rod 54 and the spiral shaft 57, and the collecting box 59 collects the impurities.

[0020] The transmission shaft 52 rotates and passes through the filter tank 1, and the transmission shaft 52 rotates and passes through the bevel gear 1 55. The scraper rod 54 is rotatably connected to the top of the No. 1 filter plate 53. The bevel gear 1 55 is engaged with the bevel gear 2 58. A collecting hole is provided on the surface of the collecting box 59, and the collecting hole is connected to the filter tank 1. A water flow hole is provided on the surface of the collecting box 59, and the water flow hole is connected to the filter tank 1, so that the scraper rod 54 can clean the surface of the No. 1 filter plate 53.

[0021] When the present embodiment is working: when it is necessary to recycle chemical waste liquid, the waste liquid is pumped into the interior of the filter tank 1 through the liquid inlet 3, the No. 1 filter plate 53 filters the waste liquid, and filters the solid impurities and particulate matter in the waste liquid for easy recycling, and at the same time the motor 51 is started, the motor 51 starts to drive the transmission shaft 52 to rotate, the transmission shaft 52 rotates to drive the scraper 54 to rotate, and the surface of the No. 1 filter plate 53 is scraped and cleaned to prevent the No. 1 filter plate 53 from being blocked and affecting the circulation of the waste liquid, the rotation of the scraper 54 drives the fixed block 56 to revolve, the rotation of the fixed block 56 drives the screw shaft 57 to revolve, the rotation of the screw shaft 57 drives the bevel gear 2 58 to revolve, and the bevel gear 2 58 rotates. 8 is engaged with bevel gear 1 55, so that bevel gear 2 58 rotates while revolving. The rotation of bevel gear 2 58 drives the screw shaft 57 to rotate. The rotation of screw shaft 57 pushes the impurities scraped by scraper 54, so that the impurities are pushed to the inner edge of the filter tank 1. While the scraper 54 rotates, the filtered impurities are squeezed into the collection box 59 through the collection groove, which is convenient for the staff to carry out subsequent centralized processing. At the same time, the No. 2 filter plate 510 filters the waste liquid in the impurities, and the filtered waste liquid flows into the interior of the filter tank 1 through the water flow hole. The filtered waste liquid flows into the interior of the purification tank 2 through the pipe 4. The purification tank 2 purifies the waste liquid, which is convenient for the recovery of the waste liquid.

[0022] See also Figure 1-Figure 7 On the basis of the above embodiment, another embodiment of the present invention further includes a stirring device and a purification device; the stirring device includes a bevel gear three 61, a rotating shaft 62, a bevel gear four 63, a stirring rod 64 and a feed port 65, the bevel gear three 61 is fixedly mounted on the circumferential surface of the transmission shaft 52, the rotating shaft 62 rotates and passes through the purification tank 2, the bevel gear four 63 is fixedly mounted on the circumferential surface of the rotating shaft 62, the stirring rod 64 is fixedly mounted on the circumferential surface of the rotating shaft 62, and the feed port 65 is fixedly passed through the top of the purification tank 2, and the bevel gear three 61 drives the bevel gear four 63 to rotate, thereby driving the stirring rod 64 to rotate, stirring the waste liquid and the medicine, so that the waste liquid and the medicine are better dissolved.

[0023] The stirring device also includes a feed port 65, a sealing plate 66, a hammer rod 67 and a slide rod 68. The sealing plate 66 is slidably mounted on the inner wall of the feed port 65, the hammer rod 67 is fixedly mounted on the bottom of the sealing plate 66, one end of the slide rod 68 is fixedly mounted on the circumferential surface of the hammer rod 67, and the other end of the slide rod 68 is slidably connected to the inner wall of the feed port 65. The hammer rod 67 and the sealing plate 66 cooperate to control the amount of medicine fed, thereby preventing excessive medicine feed, resulting in waste of medicine and increased cost.

[0024] Bevel gear three 61 is meshed with bevel gear four 63 , and a spring No. 1 for resetting the slide rod 68 is provided between the slide rod 68 and the feed port 65 . The side of the hammer rod 67 close to the stirring rod 64 is an inclined surface, which is convenient for squeezing the hammer rod 67 .

[0025] The purification device includes a reflux plate 71, a circular shaft 72 and fan blades 73. The reflux plate 71 is slidably installed on the circumferential surface of the rotating shaft 62. A square hole is opened on the surface of the reflux plate 71. The circular shaft 72 is rotatably installed on the inner wall of the square hole. The fan blades 73 are fixedly installed on the circumferential surface of the circular shaft 72 to reflux the waste liquid. At the same time, the waste liquid is stirred by the self-rotation of the fan blades 73, so that the waste liquid and the reagent are fully dissolved.

[0026] The purification device also includes a square plate 74, an air outlet pipe 75, an activated carbon box 76, a receiving rod 77, a spring piece 78, an arc block 79 and a connecting rod 710. The square plate 74 is fixedly mounted on the side of the reflux plate 71 near the stirring rod 64. The air outlet pipe 75 is fixedly passed through the top of the purification tank 2. The activated carbon box 76 is slidably mounted on the inner wall of the air outlet pipe 75. The receiving rod 77 is fixedly mounted on the bottom of the activated carbon box 76. The spring piece 78 is fixedly mounted on the side of the receiving rod 77 near the stirring rod 64. The arc block 79 is fixedly mounted on the inner wall of the activated carbon box 76. One end of the connecting rod 710 is rotatably mounted on the bottom of the receiving rod 77. The other end of the connecting rod 710 is rotatably connected to the top of the square plate 74. The harmful gas is filtered through the activated carbon box 76 to prevent the harmful gas from being discharged into the atmosphere and causing air pollution. At the same time, the contact between the spring piece 78 and the arc block 79 generates vibration, which better purifies the harmful gas.

[0027] A reciprocating thread groove is provided on the circumferential surface of the rotating shaft 62 , and the return plate 71 is threadedly connected to the circumferential surface of the rotating shaft 62 , so that the return plate 71 can move back and forth to reflux the waste liquid.

[0028] When this embodiment is working: the medicine enters the purification tank 2 through the feed port 65 and dissolves with the waste liquid, neutralizing the waste liquid so that the waste liquid can better meet the recovery standard. At the same time, the transmission shaft 52 rotates to drive the bevel gear three 61 to rotate, the bevel gear three 61 rotates to drive the bevel gear four 63 to rotate, the bevel gear four 63 rotates to drive the rotating shaft 62 to rotate, the rotating shaft 62 drives the stirring rod 64 to rotate, stirring the waste liquid and the medicine, so that the waste liquid and the medicine are better dissolved, and the waste liquid can better meet the recovery standard. At the same time, the stirring rod 64 rotates to contact the hammer rod 67 and squeeze the hammer rod 67. The hammer rod 67 moves upward under the squeezing force, and the hammer rod 67 moves upward to drive the sealing plate 66 to move upward to open the seal of the feed port 65, thereby controlling the amount of medicine fed to prevent excessive medicine feed, resulting in medicine waste and increased cost.

[0029] The rotating shaft 62 rotates through the reciprocating thread groove to drive the reflux plate 71 to reciprocate. When the reflux plate 71 moves in the direction close to the stirring rod 64, the waste liquid is refluxed, increasing the contact time between the waste liquid and the medicine, so that the medicine is better dissolved in the waste liquid, and the medicine and the waste liquid are fully dissolved. At the same time, the fan blades 73 are driven by the flow of the waste liquid to rotate, stirring the waste liquid, and better improving the dissolution rate of the waste liquid and the medicine, so that the waste liquid meets the recycling standard. The dissolution of the medicine and the waste liquid produces harmful gases, which are discharged through the outlet pipe 75. At the same time, the activated carbon box 76 purifies the harmful gases to prevent the harmful gases from being directly discharged into the air and polluting the surrounding environment. At the same time, when the reflux plate 71 moves toward the direction close to the stirring rod 64, it drives the connecting rod 710 to move toward the direction close to the stirring rod 64. The connecting rod 710 moves toward the direction close to the stirring rod 64 to squeeze the receiving rod 77. The receiving rod 77 moves upward due to the squeezing force. The receiving rod 77 moves upward, driving the activated carbon box 76 to move upward, increasing the contact time between the harmful gas and the activated carbon, and improving the effect of purifying the harmful gas. At the same time, the receiving rod 77 moves upward, driving the spring piece 78 to move. The spring piece 78 moves and contacts the arc block 79 and generates vibration. The vibration of the receiving rod 77 drives the activated carbon box 76 to vibrate, increasing the contact area between the activated carbon and the harmful gas, and better improving the purification effect.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An online chemical waste liquid recovery device, comprising a filter tank and a purification tank, characterized in that: The top of the filter tank is fixed with a liquid inlet, and the filter tank is connected to the purification tank through a pipeline. The filter tank also includes a filtering device, a stirring device and a purification device; Among them, the filtering device includes a motor, a transmission shaft, a No. 1 filter plate, a scraper, a bevel gear 1, a fixed block, a spiral shaft, a bevel gear 2, a collecting box and a No. 2 filter plate. The motor is fixedly mounted on the top of the filter tank, the transmission shaft is fixedly mounted on the output end of the motor, the No. 1 filter plate is fixedly mounted on the inner wall of the filter tank, the scraper rod is fixedly mounted on the circumferential surface of the transmission shaft, the bevel gear 1 is fixedly mounted on the top of the No. 1 filter plate, the fixed block is fixedly mounted on the surface of the scraper rod, the spiral shaft rotates through the fixed block, the bevel gear 2 is fixedly mounted on the circumferential surface of the spiral shaft, the collecting box is fixedly mounted on the circumferential surface of the filter tank, and the No. 2 filter plate is fixedly mounted on the inner wall of the collecting box.

2. The online chemical waste liquid recovery device according to claim 1, characterized in that: The transmission shaft rotates and passes through the filter tank, the transmission shaft rotates and passes through bevel gear one, the scraper rod is rotatably connected to the top of the No. 1 filter plate, the bevel gear one is engaged with bevel gear two, a collection hole is opened on the surface of the collection box, the collection hole is connected to the filter tank, a water flow hole is opened on the surface of the collection box, and the water flow hole is connected to the filter tank.

3. The online chemical waste liquid recovery device according to claim 2, characterized in that: The stirring device includes bevel gear three, a rotating shaft, bevel gear four and a stirring rod. The bevel gear three is fixedly mounted on the circumferential surface of the transmission shaft. The rotating shaft rotates and passes through the purification tank. The bevel gear four is fixedly mounted on the circumferential surface of the rotating shaft. The stirring rod is fixedly mounted on the circumferential surface of the rotating shaft.

4. The online chemical waste liquid recovery device according to claim 3, characterized in that: The stirring device also includes a feed port, a sealing plate, a hammer-shaped rod and a sliding rod. The feed port is fixed through the top of the purification tank, the sealing plate is slidably installed on the inner wall of the feed port, the hammer-shaped rod is fixedly installed on the bottom of the sealing plate, one end of the sliding rod is fixedly installed on the circumferential surface of the hammer-shaped rod, and the other end of the sliding rod is slidably connected to the inner wall of the feed port.

5. The online chemical waste liquid recovery device according to claim 4, characterized in that: The bevel gear three is meshed with the bevel gear four, a spring No. 1 for resetting the slide rod is provided between the slide rod and the feed port, and the side of the hammer-shaped rod close to the stirring rod is an inclined surface.

6. The online chemical waste liquid recovery device according to claim 5, characterized in that: The purification device includes a return plate, a circular shaft and fan blades. The return plate is slidably installed on the circumferential surface of the rotating shaft. A square hole is opened on the surface of the return plate. The circular shaft is rotatably installed on the inner wall of the square hole. The fan blades are fixedly installed on the circumferential surface of the circular shaft.

7. The online chemical waste liquid recovery device according to claim 6, characterized in that: The purification device also includes a square plate, an air outlet pipe, an activated carbon box, a receiving rod, a spring piece, an arc block and a connecting rod. The square plate is fixedly mounted on the side of the reflux plate close to the stirring rod, the air outlet pipe is fixedly passed through the top of the purification tank, the activated carbon box is slidably mounted on the inner wall of the air outlet pipe, the receiving rod is fixedly mounted on the bottom of the activated carbon box, the spring piece is fixedly mounted on the side of the receiving rod close to the stirring rod, the arc block is fixedly mounted on the inner wall of the activated carbon box, one end of the connecting rod is rotatably mounted on the bottom of the receiving rod, and the other end of the connecting rod is rotatably connected to the top of the square plate.

8. The online chemical waste liquid recovery device according to claim 7, characterized in that: A reciprocating thread groove is provided on the circumferential surface of the rotating shaft, and the return plate is threadedly connected to the circumferential surface of the rotating shaft.

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