Automatic filtering device for biochar in water pollutant adsorption process

Abstract

The present application relates to automatic filtration adsorption technical field, specifically to a kind of automatic filtering device of biochar in water pollutant adsorption process, including filter barrel, cleaning cylinder, cleaning cylinder is fixedly connected on the outer wall of filter barrel, the inside of filter barrel is rotationally provided with scraping component, the inside of cleaning cylinder is movably provided with cleaning component, the front and back of cleaning cylinder are movably provided with positioning mechanism, two positioning mechanisms are extended to the inside of cleaning cylinder, filter membrane is fixedly connected on the inner wall of filter barrel, water inlet pipe is fixedly connected on the top of filter barrel, discharge port is formed on the left and right side walls of filter barrel, water outlet is formed in the bottom of filter barrel, the filter membrane after filtration is cleaned by cleaning component, so that it can be repeatedly used, and the biochar after adsorption is recycled, solve the excessive consumption of filter membrane and disposable syringe in the experiment process.

Description

Technical Field

[0001] This invention relates to the field of automatic filtration and adsorption technology, specifically to an automatic filtration device for biochar during the adsorption of pollutants in water. Background Technology

[0002] As researchers delve deeper into the study of biochar, many types of biochar, due to their large specific surface area and porosity, are widely used for the adsorption of pollutants in water. After the adsorption process is complete, it is often necessary to separate the solution and biochar, detect the content of residual pollutants in the water, recover the biochar, and characterize and analyze the biochar after adsorption of pollutants.

[0003] Currently, the main filtration method used in laboratories is to use 0.45μm filter tips with disposable syringes. However, this process requires repetitive operations by laboratory personnel, consumes a large number of filter membranes and disposable syringes, and generates a significant amount of solid waste. Summary of the Invention

[0004] Therefore, the present invention provides an automatic filtration device for biochar during the adsorption of pollutants in water, which solves the problems of repetitive operations performed by experimenters and excessive consumption of filter membranes and disposable syringes in existing experiments.

[0005] The present invention provides the following technical solution: an automatic filtration device for biochar in the adsorption process of water pollutants, comprising a filter barrel and a cleaning cylinder, wherein the cleaning cylinder is fixedly connected to the outer wall of the filter barrel, a scraping component is rotatably provided inside the filter barrel, a cleaning component is movably provided inside the cleaning cylinder, positioning mechanisms are movably provided on the front and back of the cleaning cylinder, both of the positioning mechanisms extending into the interior of the cleaning cylinder, a filter membrane is fixedly connected to the inner wall of the filter barrel, and a discharge port is provided through the left and right side walls of the filter barrel;

[0006] The cleaning assembly includes a rotating main rod located at the rear end of the filter barrel and rotatably connected between the top and bottom walls of the cleaning barrel. The rotating main rod penetrates the bottom wall of the cleaning barrel and extends to its bottom periphery. Two connecting main ropes are fixedly connected to the outer wall of the rotating main rod, distributed on the left and right. Two connecting branch ropes are fixedly connected to the ends of the two connecting main ropes away from the rotating main rod. Two cleaning rollers are connected to the ends of the two connecting branch ropes away from the two connecting main ropes. There are two cleaning rollers in total.

[0007] The scraping assembly includes two scraping blocks distributed from left to right, both of which are located inside the cleaning cylinder. Multiple flexible bristles are fixedly connected to the opposite surfaces of the two scraping blocks. Two racks distributed from front to back are fixedly connected to the top of the two scraping blocks. An incomplete gear is rotatably provided between the two racks. A torsion shaft is connected between the two incomplete gears. A water wheel is fixedly connected to the middle of the outer wall of the torsion shaft.

[0008] The positioning mechanism includes two force-applying plates distributed front to back. Two left-right distributed insert rods are fixedly connected to the opposite surfaces of the two force-applying plates. Each insert rod has a matching hole at the end away from the force-applying plate.

[0009] As a preferred embodiment of the present invention, the cleaning roller includes an elastic rubber roller, the interior of which is provided with four placement grooves, and a return spring is fixedly connected to the interior of each of the four placement grooves. A sponge cleaning sleeve is fixedly connected to the outer wall of the elastic rubber roller, and sliding pins are fixedly connected to the front and rear ends of the two elastic rubber rollers.

[0010] It also includes two arc-shaped guide blocks distributed front and back, which are fixedly connected to the inner wall of the filter barrel. The two arc-shaped guide blocks are located on the top of the filter membrane and between the two discharge ports. Arc-shaped grooves are provided on the side of the two arc-shaped guide blocks away from the inner wall of the filter barrel. The specifications of the arc-shaped grooves are adapted to the specifications of the sliding pins.

[0011] As a preferred embodiment of the present invention, the filter barrel has through-holes on both the left and right side walls, the two through-holes are located at the top of the cleaning barrel, the outer wall of the torsion shaft is rotatably connected to the inner wall of the two through-holes by bearings, the water wheel is located inside the filter barrel, the top of the filter barrel is fixedly connected to a water inlet pipe, the water inlet pipe is located at the top of the water wheel, the incomplete gear and the rack mesh alternately, and the top of the cleaning barrel has two left and right distributed clearance grooves, the two clearance grooves are located on the periphery of the rack.

[0012] As a preferred embodiment of the present invention, the top of the scraping block has two guide holes distributed front and back, which are located around the two racks distributed front and back. Guide posts are slidably inserted into the inner walls of the two guide holes, and the top ends of the guide posts are fixedly connected to the top wall of the cleaning cylinder.

[0013] As a preferred embodiment of the present invention, two sliding holes are provided on both the front and rear side walls of the cleaning cylinder, and the outer wall of the insertion rod is slidably connected to the inner wall of the sliding hole. The specifications and size of the matching hole are adapted to the specifications and size of the sliding pin. A tension spring is sleeved on the outer wall of the insertion rod. The tension spring is located between the filter barrel and the force plate, and the two ends of the tension spring are fixedly connected to the outer wall of the filter barrel and the inner side of the force plate, respectively.

[0014] As a preferred embodiment of the present invention, branch rods are fixedly connected to the left and right outer walls of the filter barrel. The ends of the two branch rods away from the filter barrel are fixedly connected to the inner wall of the cleaning cylinder, and the top of the outer wall of the two branch rods contacts the outer wall of the two connecting main ropes.

[0015] As a preferred embodiment of the present invention, a water pressure sensor is fixedly provided on the inner wall of the filter bucket. The water pressure sensor is located at the top of the drain port, and the two drain ports are rotatably connected to a closed door by a door hinge.

[0016] As a preferred embodiment of the present invention, an operation port is provided through the left and right side walls of the cleaning cylinder, and an operation door is hinged to the left and right outer walls of the cleaning cylinder. The two operation doors are located around the two operation ports. Two storage ports are provided through the bottom of the cleaning cylinder, and two storage hoppers are fixedly connected to the bottom of the two cleaning cylinders, which are located at the bottom of the two storage ports.

[0017] As a preferred embodiment of the present invention, an air pump is mounted on the front of the filter barrel via a fixed bracket, and an air extraction pipe is fixedly connected to the output end of the air pump. The air extraction pipe passes through the side wall of the filter barrel and extends into its interior.

[0018] As a preferred embodiment of the present invention, the bottom of the filter bucket is provided with a water outlet.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, the filter membrane after filtration is cleaned by a cleaning component, so that it can be reused multiple times. At the same time, the biochar after adsorption is completed is recovered, which solves the problem of excessive consumption of filter membrane and disposable syringe during the experiment.

[0021] 2. In this invention, when the output shaft of the drive motor drives the rotating main rod to rotate, the rotating main rod will wind the two connecting main ropes onto its outer wall. Under the guidance and support of the two branch rods on the two connecting main ropes, the two connecting branch ropes are pulled, thereby pulling the two cleaning rollers to both sides. The two cleaning rollers are sliding and locked by the sliding pin and the arc-shaped groove, so that the two cleaning rollers always keep in contact with the top of the filter membrane when they move to both sides, so as to ensure the cleaning effect on the filter membrane. When the cleaning rollers move to both sides, under the pull of the two connecting branch ropes and the reverse force of the arc-shaped guide block, the two ends of the cleaning rollers will bend towards the middle, thereby achieving the effect of scraping the particles scraped off the top of the filter membrane towards the middle, and pulling the entire cleaning roller into the interior of the cleaning cylinder through the discharge port, further improving the cleaning effect on the filter membrane. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure from the right front view of the present invention;

[0023] Figure 2 This is a schematic diagram of the right front sectional view of the present invention;

[0024] Figure 3 This is a schematic diagram of the front half-section structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the front half-section structure of the filter barrel and cleaning cylinder of the present invention;

[0026] Figure 5 This is a schematic diagram of the positioning mechanism structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the cleaning component and scraping component of the present invention;

[0028] Figure 7 This is a schematic diagram of the cleaning component structure of the present invention;

[0029] Figure 8 This is a schematic cross-sectional view of the cleaning roller of the present invention;

[0030] Figure 9 for Figure 8 A partially enlarged structural schematic diagram of invention A.

[0031] In the diagram: 1. Filter barrel; 2. Cleaning cylinder; 3. Cleaning assembly; 4. Scraping assembly; 5. Cleaning roller; 6. Positioning mechanism; 7. Support rod; 8. Filter membrane; 9. Water pressure sensor; 10. Closing door; 11. Operating door; 12. Air pump; 13. Air extraction pipe; 101. Water inlet pipe; 102. Adapter hole; 103. Drain outlet; 104. Water outlet; 201. Sliding joint hole; 202. Clearance groove; 203. Operating port; 204. Storage port; 205. Storage hopper; 301. Rotating main rod; 302. Connecting main rope 303. Connecting support rope; 304. Drive motor; 401. Scraping block; 402. Flexible bristles; 403. Guide hole; 404. Guide post; 405. Rack; 406. Incomplete gear; 407. Torsion shaft; 408. Water wheel; 501. Elastic rubber roller; 502. Placement groove; 503. Return spring; 504. Sponge cleaning sleeve; 505. Sliding pin; 506. Arc-shaped guide block; 507. Arc-shaped slide groove; 601. Force plate; 602. Insert rod; 603. Matching hole; 604. Tension spring. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example: Please refer to Figure 1-9 An automatic biochar filtration device for the adsorption of pollutants in water is shown, comprising a filter barrel 1 and a cleaning cylinder 2. The cleaning cylinder 2 is fixedly connected to the outer wall of the filter barrel 1. A scraping component 4 is rotatably provided inside the filter barrel 1. A cleaning component 3 is movably provided inside the cleaning cylinder 2. Positioning mechanisms 6 are movably provided on the front and back of the cleaning cylinder 2, and both positioning mechanisms 6 extend into the interior of the cleaning cylinder 2. A filter membrane 8 is fixedly connected to the inner wall of the filter barrel 1. A water inlet pipe 101 is fixedly connected to the top of the filter barrel 1. Drainage ports 103 are provided through the left and right side walls of the filter barrel 1. A water outlet 104 is provided at the bottom of the filter barrel 1.

[0034] Specifically, external polluted water is introduced into the interior of the filter tank 1 through the inlet pipe 101. After being filtered by the filter membrane 8, the polluted water is discharged from the outlet 104, thereby separating the solution from the biochar and leaving the particulate matter in the polluted water on the top of the filter membrane 8.

[0035] In this embodiment, reference is made to Figure 2 , Figure 3 , Figure 6 , Figure 7As shown, the cleaning assembly 3 includes a rotating main rod 301, which is located at the rear end of the filter barrel 1. The rotating main rod 301 is rotatably connected between the top and bottom walls of the cleaning barrel 2. The rotating main rod 301 passes through the bottom wall of the cleaning barrel 2 and extends to its bottom periphery. Two connecting main ropes 302 are fixedly connected to the outer wall of the rotating main rod 301. Two connecting branch ropes 303 are fixedly connected to the ends of the two connecting main ropes 302 away from the rotating main rod 301. The ends of the two connecting branch ropes 303 away from the two connecting main ropes 302 are both connected to a cleaning roller 5. There are two cleaning rollers 5 in total. A drive motor 304 is fixedly connected to the bottom of the cleaning barrel 2. The drive motor 304 is located at the bottom of the rotating main rod 301. The output shaft of the drive motor 304 is fixedly connected to the bottom end of the rotating main rod 301 through a coupling.

[0036] Specifically, the output shaft of the drive motor 304 drives the rotating rod 301 to rotate. When the rotating rod 301 rotates, it winds the two connecting main ropes 302 onto its outer wall. Under the guidance and support of the two branch rods 7 on the two connecting main ropes 302, the two connecting branch ropes 303 are pulled, thereby pulling the two cleaning rollers 5 to both sides. The particles scraped from the top of the filter membrane 8 are scraped together towards the middle until both ends of the cleaning rollers 5 are pulled into the discharge port 103. Then, the cleaning rollers 5 are pulled into the cleaning cylinder 2 through the discharge port 103. At the same time, the particles scraped into the curved area of ​​the cleaning rollers 5 are also brought into the cleaning cylinder 2 and fall into the two storage hoppers 205 for temporary storage, thus achieving the automatic cleaning effect of the filter membrane 8.

[0037] In this embodiment, reference is made to Figure 2 , Figure 3 , Figure 6 As shown, the scraping assembly 4 includes two scraping blocks 401 distributed horizontally. Both scraping blocks 401 are located inside the cleaning cylinder 2. Multiple flexible bristles 402 distributed longitudinally and laterally are fixedly connected to the opposite surfaces of the two scraping blocks 401. Two racks 405 distributed front-to-back are fixedly connected to the top of each of the two scraping blocks 401. An incomplete gear 406 is rotatably provided between the two racks 405. A torsion shaft 407 is connected between the two incomplete gears 406. The middle of the outer wall of the torsion shaft 407 is fixedly connected to... A water wheel 408 is connected to the filter barrel 1. Two transition holes 102 are provided through the left and right side walls of the filter barrel 1. The two transition holes 102 are located at the top of the cleaning barrel 2. The outer wall of the torsion shaft 407 is rotatably connected to the inner wall of the two transition holes 102 through the bearing. The water wheel 408 is located inside the filter barrel 1. The water inlet pipe 101 is located at the top of the water wheel 408. The incomplete gear 406 and the rack 405 mesh alternately. Two left and right relief grooves 202 are provided through the top of the cleaning barrel 2. The two relief grooves 202 are located around the rack 405.

[0038] Specifically, when polluted water is discharged into the filter barrel 1 through the inlet pipe 101, it will wash the water wheel 408, thereby driving the torsion shaft 407 to rotate. This will further cause the two incomplete gears 406 connected to the torsion shaft 407 to rotate in the same direction, thereby alternately meshing with the racks 405 distributed in front and behind. This will further drive the two scraper blocks 401 to swing up and down. When the two scraper blocks 401 swing up and down, they will drive multiple flexible bristles 402 to move synchronously, thereby cleaning the surface of the two cleaning rollers 5 and brushing away the particles attached to the surface of the cleaning rollers 5 to restore the cleaning effect of the cleaning rollers 5.

[0039] In this embodiment, reference is made to Figure 2 , Figure 3 , Figure 5 As shown, the positioning mechanism 6 includes two front-to-back force-applying plates 601. Two left-to-right distributed insert rods 602 are fixedly connected to the opposite surfaces of the two force-applying plates 601. The end of each insert rod 602 away from the force-applying plate 601 is provided with a matching hole 603. Two left-to-right distributed sliding holes 201 are provided through the front and rear side walls of the cleaning cylinder 2. The outer wall of the insert rod 602 is slidably connected to the inner wall of the sliding hole 201. The specifications and size of the matching hole 603 are adapted to the specifications and size of the sliding pin 505. A tension spring 604 is sleeved on the outer wall of each insert rod 602. The tension spring 604 is located between the filter barrel 1 and the force-applying plate 601. The two ends of the tension spring 604 are fixedly connected to the outer wall of the filter barrel 1 and the inner side of the force-applying plate 601, respectively.

[0040] Specifically, after the two cleaning rollers 5 are pulled into the cleaning cylinder 2, the two force plates 601 are pulled forward and backward, which further drives the insertion rod 602 to move along the sliding hole 201. During this process, the tension spring 604 is stretched to generate elastic force. Then, the position of the two cleaning rollers 5 is manually adjusted, and the two force plates 601 are released. The rebound force of the tension spring 604 drives the insertion rod 602 to slide back along the sliding hole 201. At this time, the matching hole 603 is just inserted into the outer wall of the sliding pin 505. Thus, under the limiting effect of the front and rear matching holes 603 on the sliding pin 505, the cleaning rollers 5 are limited as a whole, thereby ensuring the cleaning effect of the scraping component 4 on the cleaning rollers 5.

[0041] In this embodiment, reference is made to Figure 8 , Figure 9As shown, the cleaning roller 5 includes an elastic rubber roller 501, with four mounting grooves 502 inside the elastic rubber roller 501. A return spring 503 is fixedly connected inside each of the four mounting grooves 502. A sponge cleaning sleeve 504 is fixedly connected to the outer wall of the elastic rubber roller 501. A sliding pin 505 is fixedly connected to the front and rear ends of the two elastic rubber rollers 501. It also includes two arc-shaped guide blocks 506 distributed front and back. The two arc-shaped guide blocks 506 are fixedly connected to the inner wall of the filter barrel 1. The two arc-shaped guide blocks 506 are located at the top of the filter membrane 8 and between the two discharge ports 103. An arc-shaped groove 507 is opened on the side of the two arc-shaped guide blocks 506 away from the inner wall of the filter barrel 1. The specifications of the arc-shaped groove 507 are adapted to the specifications of the sliding pin 505.

[0042] Specifically, when the output shaft of the drive motor 304 drives the rotating rod 301 to rotate, the rotating rod 301 will wind the two connecting main ropes 302 onto its outer wall. This, in turn, pulls the two connecting branch ropes 303 under the guidance and support of the two branch rods 7, thereby pulling the two cleaning rollers 5 to both sides. The two cleaning rollers 5 are held in place by the sliding pin 505 and the arc-shaped groove 507, ensuring that they remain in contact with the top of the filter membrane 8 as they move to both sides, thus guaranteeing the cleaning effect on the filter membrane 8. However, as the cleaning rollers 5 move to both sides, the pulling force of the two connecting branch ropes 303 and the counterforce of the arc-shaped guide block 506 cause the two ends of the cleaning rollers 5 to move towards the middle. The bending action of the cleaning roller 5 draws the particles scraped off the top of the filter membrane 8 towards the center until both ends of the cleaning roller 5 are pulled into the discharge port 103. The cleaning roller 5 is then pulled into the cleaning cylinder 2 through the discharge port 103, and the particles scraped into the curved area of ​​the cleaning roller 5 are also brought into the cleaning cylinder 2, where they fall into the two storage hoppers 205 for temporary storage. During the bending of the cleaning roller 5, the four return springs 503 are twisted, ensuring that both ends of the cleaning roller 5 remain in contact with the inner wall of the arc-shaped guide block 506 when the cleaning roller 5 is bent. After the cleaning roller 5 is pulled into the cleaning cylinder 2, the return force of the four return springs 503 restores the cleaning roller 5 to its original shape.

[0043] In this embodiment, reference is made to Figure 6 , Figure 7 As shown, the top of the scraping block 401 has two guide holes 403 distributed in the front and back. The two guide holes 403 are located on the periphery of the two racks 405 distributed in the front and back. Guide posts 404 are slidably inserted into the inner walls of the two guide holes 403. The top of the guide posts 404 is fixedly connected to the top wall of the cleaning cylinder 2.

[0044] Furthermore, by setting a sliding connection between the guide hole 403 and the guide post 404, the scraping block 401 is precisely guided, ensuring the smoothness and stability of the scraping block 401 when it swings up and down. This allows multiple flexible bristles 402 to swing up and down stably, thus better cleaning the surface of the cleaning roller 5.

[0045] In this embodiment, reference is made to Figure 2 , Figure 3 , Figure 4 As shown, a water pressure sensor 9 is fixedly installed on the inner wall of the filter bucket 1. The water pressure sensor 9 is located at the top of the drain port 103. The interior of the two drain ports 103 is rotatably connected to a closed door 10 through a door hinge.

[0046] Furthermore, after the polluted water filtration is completed, since the inside of the filter bucket 1 is dry, the water pressure sensor 9 cannot sense the water pressure. At this time, the water pressure sensor 9 transmits the signal to the PLC control module of the device. The PLC control module implants a program through time computer programming. This method is an existing technology and will not be described in detail here. After the PLC control module receives the instruction from the water pressure sensor 9, it controls the flipping servo motors of the two closed doors 10. The two flipping servo motors drive the two closed doors 10 to flip outward, thereby opening the two discharge ports 103, making it convenient for the staff to put the two cleaning rollers 5 into the inside of the filter bucket 1.

[0047] In this embodiment, reference is made to Figure 1 , Figure 2 , Figure 4 As shown, operation ports 203 are provided through the left and right side walls of the cleaning cylinder 2. Operation doors 11 are hinged to the left and right side outer walls of the cleaning cylinder 2. The two operation doors 11 are located around the two operation ports 203. Two storage ports 204 are provided through the bottom of the cleaning cylinder 2. Two storage hoppers 205 are fixedly connected to the bottom of the two cleaning cylinders 2. The two storage hoppers 205 are located at the bottom of the two storage ports 204.

[0048] Furthermore, by setting up an operation port 203, it is possible for the operator to reach into the cleaning cylinder 2 to facilitate the placement of the cleaning roller 5 into the filter barrel 1. The two operation ports 203 are sealed by the two operation doors 11 to prevent external dust from entering the cleaning cylinder 2. Two storage hoppers 205 are provided to temporarily store the impurities in the sewage scraped off by the two cleaning rollers 5.

[0049] In this embodiment, reference is made to Figure 2 As shown, a vacuum pump 12 is mounted on the front of the filter barrel 1 via a fixed bracket. The output end of the vacuum pump 12 is fixedly connected to a vacuum pipe 13, which penetrates the side wall of the filter barrel 1 and extends into its interior.

[0050] Furthermore, by adding an air pump 12 to the filter canister 1, the filtration rate of the device is significantly improved.

[0051] This solution discloses an automatic biochar filtration device for the adsorption of pollutants in water. During operation, external polluted water enters the filter tank 1 through the inlet pipe 101. After being filtered by the filter membrane 8, the polluted water is discharged from the outlet 104, thus retaining particulate matter on the top of the filter membrane 8. Because the inlet pipe 101 continuously supplies polluted water to the filter tank 1, the water pressure sensor 9 continuously detects the presence of water pressure inside the filter tank 1. After filtration, since the filter tank 1 is empty, the water pressure sensor 9 no longer detects water pressure. At this time, the water pressure sensor 9 transmits the signal to the device's PLC control module. The module is programmed via time-based computer programming, a method already in use and will not be elaborated upon here. When the PLC control module receives the instruction from the water pressure sensor 9, it controls the tilting servos of the two closed doors 10. The two tilting servos drive the two closed doors 10 to tilt outwards, thereby opening the two drain ports 103. At this time, the operator uses an auxiliary tool to insert the two cleaning rollers 5 into the interior of the filter bucket 1 through the two drain ports 103, placing them on the top of the filter membrane 8 near the center, positioned horizontally. Simultaneously, the sliding pins 505 on the two cleaning rollers 5 are engaged into the arc-shaped sliding grooves 507. Then, the drive motor 304 is started, and the output shaft of the drive motor 304 drives the rotating rod. When the rotating rod 301 rotates, it winds the two main connecting ropes 302 towards its outer wall. This, in turn, pulls the two supporting connecting ropes 303 under the guidance and support of the two branch rods 7. This pulls the two cleaning rollers 5 to both sides. The two cleaning rollers 5 are held in place by the sliding pins 505 and the arc-shaped grooves 507, ensuring they remain in contact with the top of the filter membrane 8 as they move to both sides, thus guaranteeing a cleanliness of the filter membrane 8. As the cleaning rollers 5 move to both sides, the pulling force of the two supporting connecting ropes 303 and the counterforce of the arc-shaped guide block 506 cause the ends of the cleaning rollers 5 to bend towards the center, thereby removing the filter membrane. The particles scraped off the top of the membrane 8 are scraped together towards the middle until both ends of the cleaning roller 5 are pulled into the discharge port 103. Then, the cleaning roller 5 is pulled into the cleaning cylinder 2 through the discharge port 103. At the same time, the particles scraped together in the curved area of ​​the cleaning roller 5 are also brought into the cleaning cylinder 2 and fall into the two storage hoppers 205 for temporary storage. During the bending of the cleaning roller 5, the four return springs 503 are twisted so that when the cleaning roller 5 is bent, both ends of the cleaning roller 5 are always in contact with the inner wall of the arc-shaped guide block 506. After the cleaning roller 5 is pulled into the cleaning cylinder 2, the cleaning roller 5 is restored to its original state by the rebound force of the four return springs 503.

[0052] After the two cleaning rollers 5 are pulled into the cleaning cylinder 2, the two force plates 601 are pulled forward and backward, which further drives the insertion rod 602 to move along the sliding hole 201. During this process, the tension spring 604 is stretched to generate elastic force. Then, the position of the two cleaning rollers 5 is manually adjusted, and the two force plates 601 are released. The rebound force of the tension spring 604 drives the insertion rod 602 to slide back along the sliding hole 201. At this time, the matching hole 603 is just inserted into the outer wall of the sliding pin 505. Thus, under the limiting effect of the front and rear matching holes 603 on the sliding pin 505, the cleaning rollers 5 are limited as a whole. Then, the mass is manually conveyed through the PLC control module of the computer box, and the two closed doors 10 are reset to seal the two discharge ports 103, so that the filtration of polluted water can continue.

[0053] When polluted water is discharged into the filter tank 1 through the inlet pipe 101, it washes the water wheel 408, thereby driving the torsion shaft 407 to rotate. This further causes the two incomplete gears 406 connected to the torsion shaft 407 to rotate in the same direction, thereby alternately meshing with the racks 405 distributed in front and behind. This further drives the two scraper blocks 401 to swing up and down. When the two scraper blocks 401 swing up and down, they drive multiple flexible bristles 402 to move synchronously, thereby cleaning the surface of the two cleaning rollers 5 and brushing away the particles attached to the surface of the cleaning rollers 5 to restore the cleaning effect of the cleaning rollers 5.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic filtration device for biochar during the adsorption of pollutants in water, characterized in that: The filter includes a filter barrel (1) and a cleaning cylinder (2). The cleaning cylinder (2) is fixedly connected to the outer wall of the filter barrel (1). The filter barrel (1) is rotatably equipped with a scraping component (4). The cleaning cylinder (2) is movably equipped with a cleaning component (3). The front and back of the cleaning cylinder (2) are movably equipped with positioning mechanisms (6). Both positioning mechanisms (6) extend into the interior of the cleaning cylinder (2). The filter barrel (1) is fixedly connected with a filter membrane (8). The left and right side walls of the filter barrel (1) are both provided with drain ports (103). The cleaning assembly (3) includes a rotating main rod (301), which is located at the rear end of the filter barrel (1) and is rotatably connected between the top and bottom walls of the cleaning barrel (2). The rotating main rod (301) penetrates the bottom wall of the cleaning barrel (2) and extends to its bottom periphery. Two connecting main ropes (302) are fixedly connected to the outer wall of the rotating main rod (301). Two connecting branch ropes (303) are fixedly connected to the ends of the two connecting main ropes (302) away from the rotating main rod (301). The ends of the two connecting branch ropes (303) away from the two connecting main ropes (302) are connected to a cleaning roller (5). There are two cleaning rollers (5). The scraping assembly (4) includes two scraping blocks (401) distributed to the left and right. Both scraping blocks (401) are located inside the cleaning cylinder (2). Multiple flexible bristles (402) are fixedly connected to the opposite surfaces of the two scraping blocks (401). Two racks (405) distributed front and back are fixedly connected to the top of the two scraping blocks (401). An incomplete gear (406) is rotatably provided between the two racks (405). A torsion shaft (407) is connected between the two incomplete gears (406). A water wheel (408) is fixedly connected to the middle of the outer wall of the torsion shaft (407). The positioning mechanism (6) includes two front-to-back force plates (601), and two left-to-right distributed insert rods (602) are fixedly connected to the opposite surfaces of the two force plates (601). Each insert rod (602) has a matching hole (603) at the end away from the force plate (601). The cleaning roller (5) includes an elastic rubber roller (501), the interior of which is provided with four mounting grooves (502), and a return spring (503) is fixedly connected inside each of the four mounting grooves (502). A sponge cleaning sleeve (504) is fixedly connected to the outer wall of the elastic rubber roller (501), and a sliding pin (505) is fixedly connected to the front and rear ends of the two elastic rubber rollers (501). It also includes two arc-shaped guide blocks (506) distributed front and back. The two arc-shaped guide blocks (506) are fixedly connected to the inner wall of the filter barrel (1). The two arc-shaped guide blocks (506) are located at the top of the filter membrane (8) and between the two discharge ports (103). Arc-shaped grooves (507) are provided on the side of the two arc-shaped guide blocks (506) away from the inner wall of the filter barrel (1). The specifications of the arc-shaped grooves (507) are adapted to the specifications of the sliding pins (505).

2. The automatic filtration device for biochar in the adsorption process of water pollutants according to claim 1, characterized in that: The filter barrel (1) has two through-holes (102) on its left and right side walls. The two through-holes (102) are located at the top of the cleaning barrel (2). The outer wall of the torsion shaft (407) is rotatably connected to the inner wall of the two through-holes (102) through bearings. The water wheel (408) is located inside the filter barrel (1). The top of the filter barrel (1) is fixedly connected to the water inlet pipe (101). The water inlet pipe (101) is located at the top of the water wheel (408). The incomplete gear (406) and the rack (405) mesh alternately. The top of the cleaning barrel (2) has two left and right distributed relief grooves (202). The two relief grooves (202) are located around the rack (405).

3. An automatic filtration device for biochar during the adsorption of pollutants in water, as described in claim 2, is characterized in that: The top of the scraping block (401) has two guide holes (403) distributed in front and behind. The two guide holes (403) are located on the periphery of two racks (405) distributed in front and behind. Guide posts (404) are slidably inserted into the inner walls of the two guide holes (403). The top of the guide posts (404) is fixedly connected to the top wall of the cleaning cylinder (2).

4. An automatic filtration device for biochar in the adsorption process of water pollutants according to claim 3, characterized in that: Two sliding joint holes (201) are provided on the front and rear side walls of the cleaning cylinder (2). The outer wall of the insertion rod (602) is slidably connected to the inner wall of the sliding joint hole (201). The specifications and size of the matching hole (603) are adapted to the specifications and size of the sliding pin (505). A tension spring (604) is sleeved on the outer wall of the insertion rod (602). The tension spring (604) is located between the filter barrel (1) and the force plate (601). The two ends of the tension spring (604) are fixedly connected to the outer wall of the filter barrel (1) and the inner side of the force plate (601), respectively.

5. An automatic filtration device for biochar in the adsorption process of water pollutants according to claim 4, characterized in that: The filter barrel (1) has two branch rods (7) fixedly connected to its left and right outer walls. The ends of the two branch rods (7) away from the filter barrel (1) are fixedly connected to the inner wall of the cleaning barrel (2). The top of the outer wall of the two branch rods (7) is in contact with the outer wall of the two connecting main ropes (302).

6. An automatic filtration device for biochar during the adsorption of pollutants in water, as described in claim 5, is characterized in that: A water pressure sensor (9) is fixedly installed on the inner wall of the filter bucket (1). The water pressure sensor (9) is located at the top of the drain port (103). The two drain ports (103) are connected to a closed door (10) by a door hinge.

7. An automatic filtration device for biochar in the adsorption process of water pollutants according to claim 6, characterized in that: The cleaning cylinder (2) has an operating port (203) through it on both the left and right sides. The cleaning cylinder (2) has an operating door (11) through it on both the left and right sides of its outer wall. The two operating doors (11) are located around the two operating ports (203). The bottom of the cleaning cylinder (2) has two storage ports (204) distributed to the left and right. The bottom of the two cleaning cylinders (2) is fixedly connected to two storage hoppers (205) distributed to the left and right. The two storage hoppers (205) are located at the bottom of the two storage ports (204).

8. An automatic filtration device for biochar during the adsorption of pollutants in water, as described in claim 7, is characterized in that: A vacuum pump (12) is mounted on the front of the filter barrel (1) via a fixed bracket. The output end of the vacuum pump (12) is fixedly connected to a vacuum pipe (13). The vacuum pipe (13) passes through the side wall of the filter barrel (1) and extends into its interior.

9. An automatic filtration device for biochar during the adsorption of pollutants in water, as described in claim 8, is characterized in that: The filter bucket (1) has an outlet (104) at its bottom.

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