A multi-stage filtration device for wastewater from animal cleaning

Abstract

The present invention belongs to the technical field of wastewater treatment, and discloses a multi-stage filtration device for wastewater from animal washing, including a support frame and a treatment barrel. The upper end of the support frame is fixed with a treatment barrel, and a liquid inlet pipe is connected to the upper end of the treatment barrel. The lower end of the liquid inlet pipe is conductively connected to a liquid inlet conduit, and the lower end of the liquid inlet conduit extends into the interior of the support frame. The bottom end of the treatment barrel is connected with a liquid outlet pipe, and a sealed box door is hinged to the lower end of the treatment barrel. A flow guide plate is arranged at the upper end inside the treatment barrel, and a pre-filtering cover is arranged in the middle of the flow guide plate. The lower end of the flow guide plate is connected with a flow guide hopper, and a filtering box is arranged at the lower end of the flow guide hopper. This multi-stage filtration device for wastewater from animal washing can collect larger impurities after injecting wastewater through the pre-filtering structure, and cooperate with the slow-flow structure to collect the remaining impurities after precipitation when the wastewater flows slowly, and can realize the automatic cleaning and discharging of impurities.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to a multi-stage filtration device for wastewater from animal cleaning. Background Art

[0002] Wastewater refers to the general term for the water discharged during the activities of residents and the runoff rainwater. It includes domestic sewage, industrial wastewater, and other useless water such as the first rain runoff into the drainage pipe channels. Generally, it refers to the water that cannot be recycled after certain technical treatment or the water whose purification treatment difficulty after primary pollution cannot reach a certain standard. In the process of livestock breeding, in order to keep the animal fur clean, animals will be cleaned regularly, but a large amount of wastewater will be generated after cleaning. To reduce waste, the cleaning wastewater can be treated and recycled.

[0003] However, when the existing multi-stage filtration device for wastewater from animal cleaning is in use, there are still certain problems:

[0004] Existing, such as a livestock and poultry breeding house cleaning wastewater recycling and treatment device with the Chinese patent application number CN210505785U, includes a wastewater treatment tank. A wastewater discharge hopper is arranged at the top of the wastewater treatment tank. Below the wastewater discharge hopper, flow retardation plates are staggered. A support rod connected to the inner wall of the wastewater treatment tank is fixed at the bottom of the flow retardation plate. A waste residue storage box is arranged at the bottom of the wastewater treatment tank. A water seepage plate is horizontally fixed at the bottom of the waste residue storage box. A wastewater chamber corresponds to the bottom of the water seepage plate;

[0005] 1. The existing wastewater treatment device mainly relies on a filter screen to treat wastewater. However, the flow retardation structure it sets can only reduce the flow rate of the waste residue, but the waste residue will still accumulate outside the filter screen, easily causing the filter screen to be blocked. Over time, the filtration efficiency will also gradually decrease;

[0006] 2. The existing wastewater treatment device cannot classify and collect feces and hair impurities for treatment. After the animal hair is recycled, it has certain utilization value, but the existing treatment device cannot classify and collect it, and cannot make full use of this value.

[0007] In view of the above problems, an innovative design is carried out on the basis of the original multi-stage filtration device for wastewater from animal cleaning. Summary of the Invention

[0008] The purpose of the present invention is to provide a multi-stage filtration device for wastewater from animal cleaning, so as to solve the problems in the above background art that the filter screen of the existing wastewater treatment device is prone to blockage during wastewater treatment. Although it can clean itself, the wastewater filtration efficiency will gradually decrease before cleaning, and a large amount of animal hair in the cleaning wastewater cannot be recycled.

[0009] To achieve the above object, the present invention provides the following technical solution: A multi-stage filtration device for waste water in animal cleaning, including a support frame and a treatment barrel:

[0010] The upper end of the support frame is fixed with a treatment barrel, and the upper end of the treatment barrel is connected with a liquid inlet pipe. The lower end of the liquid inlet pipe is conductively connected with a liquid inlet conduit, and the lower end of the liquid inlet conduit extends into the support frame. The bottom end of the treatment barrel is connected with a liquid outlet pipe, and the lower end of the treatment barrel is hinged with a sealed box door;

[0011] At the upper end inside the treatment barrel, a diversion plate is provided, and a pre-filter cover is arranged in the middle of the diversion plate. The lower end of the diversion plate is connected with a diversion hopper, and a filter box is arranged at the lower end of the diversion hopper. Inside the filter box, a first flow retarder plate is provided, and a second flow retarder plate is arranged at the lower end of the first flow retarder plate. And a transmission frame is installed at the upper ends of the first flow retarder plate and the second flow retarder plate;

[0012] The lower end inside the treatment barrel is connected with a transmission rod, and a collection box is arranged outside the transmission rod. The first filter screen is embedded on the side of the collection box, and a liquid inlet groove is opened on the other side of the collection box. A feed baffle is arranged inside the liquid inlet groove.

[0013] Preferably, the lower end of the liquid inlet conduit is designed in a conical shape. A guide through hole is opened on the outer ring of the bottom of the liquid inlet conduit, and the guide through holes are annularly arranged around the center point of the liquid inlet conduit. A diversion cover is fixed at the bottom end inside the liquid inlet conduit, and the diversion cover is designed in a hollow conical shape.

[0014] By adopting the above technical solution, through the cooperation of the liquid inlet conduit and the diversion cover, the waste water can flow down evenly through multiple groups of guide through holes when the waste water is injected, so that the waste water flows evenly to the surface of the pre-filter cover.

[0015] Preferably, the diversion plate is fixed to the inner wall of the treatment barrel, and the inner wall of the diversion plate is rotationally connected with the pre-filter cover. The diversion plate is designed in a circular ring shape, and a diversion groove is opened at the upper end of the diversion plate. The bottom of both sides of the diversion groove is connected with a first discharge pipe, and the depths of the left and right ends of the diversion groove are greater than the depth of the middle part.

[0016] By adopting the above technical solution, the pre-filter cover can filter larger impurities such as feces and roll along the surface of the pre-filter cover into the diversion groove. Due to the different heights inside the diversion groove, the larger impurities can flow from the diversion groove into the first discharge pipe.

[0017] Preferably, storage boxes are arranged on both sides outside the treatment barrel, and the lower end of the storage box is clamped with the treatment barrel. The storage box coincides with the outer wall of the treatment barrel. A positioning bolt penetrates through the upper end of the storage box, and the positioning bolt is threadedly connected with the outer wall of the treatment barrel. And the first discharge pipe penetrates through the treatment barrel and extends into the storage box.

[0018] With the above technical solution, through the cooperation of the first discharge pipe and the storage box, the impurities discharged from the inside of the first discharge pipe can be collected into the storage box, and the positioning bolts can fix the storage box outside the treatment box, thereby facilitating the quick disassembly and assembly of the storage box to clean the impurities collected inside.

[0019] Preferably, both the filter box and the diversion hopper are fixed to the inner wall of the treatment barrel. There are two sets of the first flow retarder plate and the second flow retarder plate. The first flow retarder plate and the second flow retarder plate are symmetrically distributed on the left and right sides inside the filter box, and the first flow retarder plate and the second flow retarder plate are staggered, and both the first flow retarder plate and the second flow retarder plate are designed in an "L" shape structure.

[0020] With the above technical solution, through the design of the diversion hopper, it is convenient for the wastewater to flow into the two sets of limiting plates, and the first flow retarder plate and the second flow retarder plate provided are used to slow down the flow rate of the wastewater, and the L-shaped first flow retarder plate and the second flow retarder plate can make the granular impurities in the wastewater precipitate and remain.

[0021] Preferably, limiting plates are attached to the front and rear sides of the first flow retarder plate and the second flow retarder plate, and the first flow retarder plate and the second flow retarder plate are fixedly connected to the limiting plates. Discharge slots are provided on the front and rear sides of the filter box, and both sides of the transmission frame penetrate into the discharge slots, and the transmission frame is slidably connected to the limiting plates. A material limiting block is fixed in the middle of the transmission frame, and the upper end of the material limiting block is designed in an inverted "V" shape;

[0022] Two sets of transmission plates are arranged inside the discharge slots, and the transmission plates are fixedly connected to the end surface of the transmission frame. An electric push rod is installed at the front end of the filter box, and the rear end of the electric push rod is fixedly connected to the transmission plate. The bottom of the discharge slot is connected to a second discharge pipe, and the end of the second discharge pipe extends outside the treatment barrel.

[0023] With the above technical solution, through the cooperation of the material limiting block and the transmission frame, the impurities generated when the wastewater flows can be collected, and the transmission frame and the material limiting block can be respectively sealed at the openings of the limiting plates. When the electric push rod expands and contracts, it can push the transmission frame and the material limiting block to displace. When the transmission frame extends into the discharge slot, the impurities collected in the middle can fall into the discharge slot for discharging.

[0024] Preferably, a transmission frame is fixed to the upper end of the uppermost transmission frame, and a transmission rack is connected to the upper end of the transmission frame. Both sides of the transmission frame penetrate the limiting plates, and the transmission frame is slidably connected to the limiting plates. A transmission shaft is connected to the lower end of the pre-filter cover, and a transmission gear is connected to the lower end of the transmission shaft, and the transmission gear is meshed with the transmission rack.

[0025] With the above technical solution, through the design of the transmission frame and the transmission rack, when the transmission frame moves, it can drive the transmission frame and the transmission rack to move synchronously. When the transmission rack moves, it drives the transmission gear, the transmission shaft and the pre-filter cover to rotate synchronously. When the pre-filter cover rotates, centrifugal force can be generated, which can quickly throw the impurities on the surface of the pre-filter cover into the diversion groove.

[0026] Preferably, the liquid inlet grooves and the feed baffles are distributed in an equidistant array, and two groups of feed baffles are arranged inside the liquid inlet grooves in a "V" shape distribution, and the feed baffles are made of rubber. Waste water can flow into the collection box through the two groups of feed baffles. A cleaning brush is connected to the lower end of the collection box, a second filter screen is fixed to the lower end of the treatment barrel, and the lower end of the cleaning brush contacts the second filter screen.

[0027] With the above technical solution, through the cooperation of the liquid inlet groove and the feed baffle, the waste water can flow into the collection box normally and then flow out through the second filter screen. The second filter screen can intercept impurities and animal hairs, and the second filter screen can ensure that the waste water will not carry uncollected impurities when it is discharged outside the treatment barrel.

[0028] Preferably, a power motor is fixed to the bottom of the treatment barrel, and the power motor is connected to the transmission rod. The transmission rod is provided with a limiting groove. A limiting block is fixed to the inner side of the collection box, and the limiting block is engaged with the limiting groove. The upper and lower ends of the outer side of the collection box are rotatably connected with limiting rollers. The sealed box door is engaged with the treatment barrel, and the sealed box door is adapted to the inner wall of the treatment barrel, and the limiting rollers contact the inner wall of the treatment barrel.

[0029] With the above technical solution, the power motor can drive the transmission rod to rotate. By using the cooperation of the limiting groove and the transmission rod, the collection box can be installed outside the transmission rod. By using the cooperation of the limiting rollers and the inner wall of the treatment barrel, after the sealed box door is closed, the collection box can be reliably installed outside the transmission rod, and when rotating, it can continuously make the waste water flow inside the collection box to collect the impurities inside.

[0030] Compared with the prior art, the beneficial effect of the present invention is that: the multi-stage filtration device for waste water used in animal cleaning can collect larger impurities after injecting waste water through the pre-filtration structure, and cooperate with the slow-flow structure to collect the remaining impurities after precipitation when the waste water flows slowly, and can realize the automatic cleaning and discharging of impurities.

[0031] 1. By using the slow-flow structure, the impurities inside the waste water can be precipitated while the waste water is flowing, reducing the subsequent filtration pressure of the filter screen, reducing the probability of the filter screen being blocked, avoiding affecting the filtration efficiency of the filter screen. At the same time, when cleaning the impurities precipitated on the upper end of the slow-flow plate, cooperate with the gear-rack structure to drive the pre-filtration structure to rotate, and use centrifugal force to shake and clean the impurities attached to the surface of the pre-filter cover to avoid its blockage and affect the filtration efficiency;

[0032] 2. By providing a hair collection structure, it is driven to rotate by a power motor. During the rotation process, the wastewater flows into the interior of the collection box and is retained. Continuous rotation can process the animal hair remaining in the subsequent wastewater, improving the utilization value of the animal washing wastewater. Moreover, the collection box is installed in a snap-fit manner, and the sealed box door can be quickly disassembled and assembled after being opened, facilitating the handling of the collected animal hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the liquid inlet pipe and the liquid inlet conduit of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the liquid inlet conduit and the guide through hole of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the diversion plate and the diversion groove of the present invention;

[0037] Figure 5 It is a schematic diagram of the structure of the filter box and the second discharge pipe of the present invention;

[0038] Figure 6 It is a schematic diagram of the structure of the first flow retarder plate and the second flow retarder plate of the present invention;

[0039] Figure 7 It is a schematic diagram of the structure of the transmission frame and the transmission plate of the present invention;

[0040] Figure 8 It is a schematic diagram of the structure of the transmission rack and the transmission rack of the present invention;

[0041] Figure 9 It is a schematic diagram of the structure of the transmission frame and the material limiting block of the present invention;

[0042] Figure 10 It is a schematic diagram of the structure of the treatment barrel and the sealed box door of the present invention;

[0043] Figure 11 It is a schematic diagram of the structure of the transmission rod and the collection box of the present invention;

[0044] Figure 12 It is a schematic diagram of the structure of the limit groove and the limit block of the present invention.

[0045] In the figure: 1, support frame; 2, treatment barrel; 3, liquid inlet pipe; 4, liquid inlet conduit; 5, guide through hole; 6, flow guide cover; 7, flow guide plate; 8, pre-filter cover; 9, flow guide groove; 10, first discharge pipe; 11, storage tank; 12, positioning bolt; 13, filter box; 14, first flow retarder plate; 15, second flow retarder plate; 16, flow guide hopper; 17, limit plate; 18, drive frame; 19, material limiting block; 20, discharge chute; 21, drive plate; 22, electric push rod; 23, second discharge pipe; 24, drive rack; 25, drive shaft; 26, drive gear; 27, sealed box door; 28, liquid outlet pipe; 29, drive rod; 30, collection box; 31, first filter screen; 32, power motor; 33, feed baffle; 34, limit roller; 35, limit block; 36, limit groove; 37, second filter screen; 38, cleaning brush. Specific implementation mode

[0046] 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 work belong to the protection scope of the present invention.

[0047] Please refer to Figures 1-12 , the present invention provides a technical solution: a multi-stage filtration device for wastewater from animal cleaning, including a support frame 1 and a treatment barrel 2. The upper end of the support frame 1 is fixed with the treatment barrel 2, and the upper end of the treatment barrel 2 is connected with a liquid inlet pipe 3. The lower end of the liquid inlet pipe 3 is conductively connected with a liquid inlet conduit 4, and the lower end of the liquid inlet conduit 4 extends to the inside of the support frame 1. The lower end of the liquid inlet conduit 4 is designed in a conical shape, and a guide through hole 5 is opened on the outer ring of the bottom of the liquid inlet conduit 4, and the guide through holes 5 are distributed in an annular array with the center point of the liquid inlet conduit 4 as the axis. A flow guide cover 6 is fixed at the inner bottom end of the liquid inlet conduit 4, and the flow guide cover 6 is designed in a hollow conical shape; the support frame 1 supports the treatment barrel 2. During wastewater treatment, the conduit is connected to the liquid inlet pipe 3 through a flange, and the wastewater can flow into the liquid inlet conduit 4 through the liquid inlet pipe 3. To ensure that the wastewater can flow down in multiple directions, the flow guide cover 6 is used to guide the wastewater and then flow out through multiple groups of guide through holes 5, so as to uniformly fall onto the surface of the pre-filter cover 8.

[0048] A diversion plate 7 is provided at the upper end inside the treatment barrel 2, and a pre-filter cover 8 is provided in the middle of the diversion plate 7. The diversion plate 7 is fixed to the inner wall of the treatment barrel 2, and the inner wall of the diversion plate 7 is rotatably connected to the inner wall of the pre-filter cover 8. The diversion plate 7 is designed in a circular ring shape, and diversion grooves 9 are provided at the upper end of the diversion plate 7. The bottom of both sides of the diversion grooves 9 is connected with a first discharge pipe 10, and the depths of the left and right ends of the diversion grooves 9 are greater than the depth of the middle part. Storage bins 11 are provided on both sides outside the treatment barrel 2, and the lower end of the storage bin 11 is engaged with the treatment barrel 2. The storage bin 11 coincides with the outer wall of the treatment barrel 2. A positioning bolt 12 penetrates through the upper end of the storage bin 11, and the positioning bolt 12 is threadedly connected to the outer wall of the treatment barrel 2, and the first discharge pipe 10 penetrates through the treatment barrel 2 and extends into the storage bin 11; through the design of the pre-filter cover 8, when the wastewater falls on the surface, impurities with larger particles can be intercepted. The upper end surface of the pre-filter cover 8 is designed in a conical shape, and the intercepted impurities can roll downward along with the water flow and fall into the diversion grooves 9. Because the closer the distance between the diversion grooves 9 and the first discharge pipe 10, the deeper the depth, it is ensured that after the impurities fall into the diversion grooves 9, they can gradually move to the first discharge pipe 10 and be discharged to the outside, and fall into the storage bin 11 to complete the collection. The support of the diversion plate 7 enables the pre-filter cover 8 to rotate, and the centrifugal force generated during rotation throws the particulate impurities stuck in the gaps of the pre-filter cover 8 outward to the diversion grooves 9.

[0049] A diversion plate 7 is connected to the lower end of a diversion hopper 16, and a filter box 13 is arranged at the lower end of the diversion hopper 16. A first flow retarder plate 14 is arranged inside the filter box 13, and a second flow retarder plate 15 is arranged at the lower end of the first flow retarder plate 14. A transmission frame 18 is installed at the upper ends of the first flow retarder plate 14 and the second flow retarder plate 15. Both the filter box 13 and the diversion hopper 16 are fixed to the inner wall of the treatment barrel 2. There are two groups of the first flow retarder plate 14 and the second flow retarder plate 15. The first flow retarder plate 14 and the second flow retarder plate 15 are symmetrically distributed on the left and right sides inside the filter box 13 and are staggered. The first flow retarder plate 14 and the second flow retarder plate 15 are both designed in an "L" shape. Limiting plates 17 are arranged in a fitting manner on the front and rear sides of the first flow retarder plate 14 and the second flow retarder plate 15, and the first flow retarder plate 14 and the second flow retarder plate 15 are fixedly connected to the limiting plates 17. Discharge slots 20 are formed on the front and rear sides of the filter box 13. Both sides of the transmission frame 18 penetrate into the discharge slots 20, and the transmission frame 18 is slidably connected to the limiting plates 17. A material limiting block 19 is fixed in the middle of the transmission frame 18, and the upper end of the material limiting block 19 is designed in an inverted "V" shape. Transmission plates 21 are arranged inside the two discharge slots 20, and the transmission plates 21 are fixedly connected to the end faces of the transmission frames 18. An electric push rod 22 is installed at the front end of the filter box 13, and the rear end of the electric push rod 22 is fixedly connected to the transmission plate 21. The bottom of the discharge slot 20 is connected to a second discharge pipe 23, and the end of the second discharge pipe 23 extends to the outside of the treatment barrel 2. The limiting plates 17 can be used to separate the installation areas of the first flow retarder plate 14 and the second flow retarder plate 15, and the diversion hopper 16 can divert the waste water between the two limiting plates 17 to ensure that it flows down after flow retardation. The first flow retarder plate 14 and the second flow retarder plate 15 can reduce the flow rate of the waste water, so that the impurities that cannot be filtered during pre-filtration are precipitated and intercepted inside the transmission frame 18. If the precipitated impurities need to be cleaned, the electric push rod 22 can be extended or retracted to extend the transmission frame 18 with intercepted impurities into the discharge slot 20, so that the precipitated impurities fall off and are discharged by the second discharge pipe 23. After the positions of the transmission frame 18 and the material limiting block 19 are changed for impurity cleaning, the other side frame of the transmission frame 18 cooperates with the material limiting block 19 to still maintain the clamping and sealing with the limiting plate 17, preventing the waste water from flowing into the discharge slot 20 through the gaps of the limiting plate 17. This structure can realize the automatic cleaning of the precipitated impurities, greatly reducing the filtration pressure of the subsequent filter screen, reducing the probability of filter screen blockage and maintaining the filtration efficiency, and at the same time improving the cleanliness during subsequent hair collection.

[0050] A drive frame 24 is fixed to the upper end of the uppermost drive frame 18, and a drive rack 25 is connected to the upper end of the drive frame 24. The two sides of the drive frame 24 penetrate through the limit plate 17, and the drive frame 24 is slidably connected to the limit plate 17. The lower end of the pre-filter cover 8 is connected to a drive shaft 26, and the lower end of the drive shaft 26 is connected to a drive gear 27, and the drive gear 27 is meshed with the drive rack 25; through the connection between the drive frame 18 and the drive frame 24, when the drive frame 18 moves, the drive frame 24 and the drive rack 25 move synchronously, and the drive rack 25 is used to drive the drive gear 27 and the drive shaft 26 to rotate, thereby driving the pre-filter cover 8 to rotate, and using centrifugal force to throw the particulate impurities stuck in the surface gap to the diversion groove 9, avoiding affecting the pre-filtration efficiency after blockage. The drive structure is linked with the sediment cleaning structure, and a separate power source does not need to be set up to realize the timed rotation and cleaning of the pre-filter cover 8.

[0051] A liquid outlet pipe 29 is connected to the bottom end of the treatment barrel 2, and a sealed box door 28 is hinged to the lower end of the treatment barrel 2; a drive rod 30 is connected to the lower end inside the treatment barrel 2, and a collection box 31 is arranged outside the drive rod 30. A first filter screen 32 is embedded on the side of the collection box 31, and a liquid inlet groove is formed on the other side of the collection box 31, and a feed baffle 34 is arranged inside the liquid inlet groove; the liquid inlet groove and the feed baffle 34 are distributed in an equidistant array, and two groups of feed baffles 34 are arranged inside the liquid inlet groove in a "V" shape, and the feed baffle 34 is made of rubber material. Waste water can flow into the collection box 31 through the two groups of feed baffles 34. A cleaning brush 39 is connected to the lower end of the collection box 31, a second filter screen 38 is fixed to the lower end of the treatment barrel 2, and the lower end of the cleaning brush 39 contacts the second filter screen 38; a power motor 33 is fixed to the bottom of the treatment barrel 2, and the power motor 33 is connected to the drive rod 30. A limit groove 37 is formed in the drive rod 30, a limit block 36 is fixed to the inner side of the collection box 31, and the limit block 36 is engaged with the limit groove 37. The upper and lower ends of the outer side of the collection box 31 are rotatably connected with limit rollers 35. The sealed box door 28 is engaged with the treatment barrel 2, and the sealed box door 28 is adapted to the inner wall of the treatment barrel 2, and the limit rollers 35 contact the inner wall of the treatment barrel 2; by quickly opening and closing the lower area of the treatment barrel 2 through the sealed box door 28, it is convenient to quickly disassemble and assemble the collection box 31 to process the internal hair. When the power motor 33 is started, the drive rod 30 can be driven to rotate, and the drive rod 30 can drive the collection box 31 to rotate. When the collection box 31 rotates, the waste water flows into the collection box 31 after passing through the feed baffle 34, and the hair floating in the waste water is collected through the first filter screen 32. When the waste water needs to be discharged, the second filter screen 38 is used to further filter the impurities that have not been completely collected in the waste water, and the filtered water is discharged through the liquid outlet pipe 29.

[0052] When it is necessary to process the animal hair collected inside the collection box 31, the sealed box door 28 can be opened, and the collection box 31 can be taken out for processing. When the collection box 31 is installed after processing, the installation is completed by engaging the limit block 36 with the limit groove 37. By using the contact between the limit roller 35 and the inner wall of the processing barrel 2, the engagement installation of the collection box 31 with the transmission rod 30 can be maintained, and the inner wall can be kept smooth after the sealed box door 28 is engaged, so as to maintain the smooth rotation of the limit roller 35 when the collection box 31 rotates.

[0053] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi - stage filtration device for waste water in animal cleaning, including a support frame (1) and a treatment barrel (2), characterized in that: The upper end of the support frame (1) is fixed with a treatment barrel (2), and the upper end of the treatment barrel (2) is connected with a liquid inlet pipe (3). The lower end of the liquid inlet pipe (3) is conductively connected with a liquid inlet conduit (4), and the lower end of the liquid inlet conduit (4) extends into the interior of the support frame (1). The bottom end of the treatment barrel (2) is connected with a liquid outlet pipe (29), and the lower end of the treatment barrel (2) is hinged with a sealed box door (28); Inside the upper end of the treatment barrel (2), a diversion plate (7) is arranged, and a pre - filter cover (8) is arranged in the middle of the diversion plate (7). The lower end of the diversion plate (7) is connected with a diversion hopper (16), and a filter box (13) is arranged at the lower end of the diversion hopper (16). Inside the filter box (13), a first slow - flow plate (14) is arranged, and a second slow - flow plate (15) is arranged at the lower end of the first slow - flow plate (14). And a transmission frame (18) is installed at the upper ends of the first slow - flow plate (14) and the second slow - flow plate (15); The lower end inside the treatment barrel (2) is connected with a transmission rod (30), and a collection box (31) is arranged outside the transmission rod (30). A first filter net (32) is embedded on the side of the collection box (31), and a liquid inlet groove is opened on the other side of the collection box (31). A feed baffle (34) is arranged inside the liquid inlet groove; Both the filter box (13) and the diversion hopper (16) are fixed to the inner wall of the treatment barrel (2). There are two groups of the first slow - flow plate (14) and the second slow - flow plate (15). The first slow - flow plate (14) and the second slow - flow plate (15) are symmetrically distributed on the left and right sides inside the filter box (13), and the first slow - flow plate (14) and the second slow - flow plate (15) are staggeredly distributed. And both the first slow - flow plate (14) and the second slow - flow plate (15) are designed in an "L" - shaped structure; Limit plates (17) are arranged in a fitting manner on the front and rear sides of the first slow - flow plate (14) and the second slow - flow plate (15), and the first slow - flow plate (14) and the second slow - flow plate (15) are fixedly connected with the limit plates (17). Discharge slots (20) are opened on the front and rear sides of the filter box (13). Both sides of the transmission frame (18) penetrate into the interior of the discharge slots (20), and the transmission frame (18) is slidably connected with the limit plates (17). A material - limiting block (19) is fixed in the middle of the transmission frame (18), and the upper end of the material - limiting block (19) is designed in an inverted "V" shape; Two groups of transmission plates (21) are arranged inside the discharge slots (20), and the transmission plates (21) are fixedly connected with the end faces of the transmission frames (18). An electric push rod (22) is installed at the front end of the filter box (13), and the rear end of the electric push rod (22) is fixedly connected with the transmission plate (21). The bottom of the discharge slot (20) is connected with a second discharge pipe (23), and the end of the second discharge pipe (23) extends outside the treatment barrel (2); At the uppermost end, a transmission frame (24) is fixed to the upper end of the transmission frame (18), and a transmission rack (25) is connected to the upper end of the transmission frame (24). The two sides of the transmission frame (24) penetrate through the limit plate (17), and the transmission frame (24) is slidably connected to the limit plate (17). The lower end of the pre-filter cover (8) is connected to a transmission shaft (26), and the lower end of the transmission shaft (26) is connected to a transmission gear (27), and the transmission gear (27) is meshed with the transmission rack (25).

2. The multi-stage filtration device for wastewater from animal cleaning according to claim 1, wherein: The lower end of the liquid inlet conduit (4) is designed in a conical shape. A guide through hole (5) is formed in the outer ring of the bottom of the liquid inlet conduit (4), and the guide through holes (5) are distributed in an annular array with the center point of the liquid inlet conduit (4) as the axis. A flow guide cover (6) is fixed to the inner bottom end of the liquid inlet conduit (4), and the flow guide cover (6) is designed in a hollow conical shape.

3. The multi-stage filtration device for wastewater from animal washing according to claim 2, wherein: The flow guide disc (7) is fixed to the inner wall of the treatment barrel (2), and the flow guide disc (7) is rotatably connected to the inner wall of the pre-filter cover (8). The flow guide disc (7) is designed in a circular ring shape, and a flow guide groove (9) is formed in the upper end of the flow guide disc (7). The two sides of the bottom of the flow guide groove (9) are connected to a first discharge pipe (10), and the depths of the left and right ends of the flow guide groove (9) are greater than the depth of the middle part.

4. The multi-stage filtration device for waste water in animal washing according to claim 3, characterized in that: On both sides of the outside of the treatment barrel (2), a storage box (11) is provided. The lower end of the storage box (11) is engaged with the treatment barrel (2), and the storage box (11) coincides with the outer wall of the treatment barrel (2). A positioning bolt (12) penetrates through the upper end of the storage box (11), and the positioning bolt (12) is threadedly connected to the outer wall of the treatment barrel (2), and the first discharge pipe (10) penetrates through the treatment barrel (2) and extends into the storage box (11).

5. A multi-stage filtration device for wastewater from animal washing according to claim 1, characterized in that: The liquid inlet grooves and the feed baffle plates (34) are distributed in an equidistant array. Two groups of feed baffle plates (34) are arranged in a "V" shape inside the liquid inlet grooves, and the feed baffle plates (34) are made of rubber. Waste water can flow into the inside of the collection box (31) through the two groups of feed baffle plates (34). A cleaning brush (39) is connected to the lower end of the collection box (31). A second filter screen (38) is fixed to the lower end of the treatment barrel (2), and the lower end of the cleaning brush (39) contacts the second filter screen (38).

6. The multi-stage filtration device for wastewater from animal cleaning according to claim 5, wherein: A power motor (33) is fixed to the bottom of the treatment barrel (2), and the power motor (33) is connected to a transmission rod (30). A limit groove (37) is formed in the transmission rod (30). A limit block (36) is fixed to the inner side of the collection box (31), and the limit block (36) is engaged with the limit groove (37). The upper and lower ends of the outside of the collection box (31) are rotatably connected to limit rollers (35). The sealed box door (28) is engaged with the treatment barrel (2), and the sealed box door (28) is adapted to the inner wall of the treatment barrel (2), and the limit rollers (35) contact the inner wall of the treatment barrel (2).

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