Biological treatment system for leather sewage

Abstract

The invention provides a biological treatment system for leather sewage, and relates to the technical field of biological treatment of sewage, the biological treatment system comprises a tank body and a biological pool, the tank body is provided with a feeding assembly, the feeding assembly comprises an inlet pipe and a conical hopper, the tank body is provided with a filtering assembly, the filtering assembly comprises a fixed disc and a filter cartridge, and the fixed disc is provided with a plurality of filtering holes; the biological treatment system comprises a tank body, the tank body is provided with a driving assembly, the driving assembly comprises a first motor and a screw rod, the tank body is provided with a grinding assembly, the grinding assembly comprises a rotating disc and a supporting rod, and the tank body is provided with a supporting assembly. The sewage treatment thoroughness is guaranteed, the stirring effect is generated on the sewage through vibration, settled sludge is mixed into the sewage again, the uniformity of the sewage is guaranteed, the sludge can be discharged, sludge cleaning work is not needed, the fermentation efficiency is improved, and the device is suitable for biological treatment of the sewage generated by leather processing.

Description

Technical Field

[0001] The present invention relates to the technical field of biological treatment equipment for sewage, and specifically to a biological treatment system for leather sewage. Background Art

[0002] When carrying out the production and processing of leather, in order to ensure environmental safety, sewage treatment is often required. Among them, biological treatment of sewage is a commonly used sewage treatment method. The invention patent with the patent application number CN202310423309.0 discloses a microbial reactor for domestic sewage purification. The primary filter plate in the sewage treatment area preliminarily filters the sewage, and the large-particle impurities in the sewage are filtered out through the sewage filtration layer in the sewage treatment area. Then, the microbial sewage mixing mechanism drives the microorganisms on the microbial colonization rack to treat the sewage, and the sewage is aerated through the aeration system. Then, the microorganisms are fed through the microbial feeding mechanism. After sewage treatment, since the microorganisms are attached to the microbial colonization rack, it is not easy to carry away the microorganisms when discharging the clean water. The clean water is discharged into the clean water area through the water discharge mechanism installed on the partition plate. Compared with the prior art, this device is convenient for preventing the microorganisms in the decomposed clean water from being carried out during the clean water discharge, effectively maintaining the concentration of microorganisms in the sewage, and improving the sewage treatment efficiency. The invention patent with the patent application number CN202410732944.1 discloses a sewage treatment device for microbial nutrient medium. By installing a plurality of microbial nutrient medium rotation mixing mechanisms in an annular array structure at the inner bottom of the sewage treatment tank, cooperating with the air supply mechanism to directly supply air to the preferred microbial nutrient medium, the cultivated microorganisms have sufficient oxygen, enhancing the rapid reproduction vitality of the microorganisms and improving the sewage treatment effect. And it can be mixed and stirred to make the oxygen more sufficient, making the sewage treatment more uniform and comprehensive, and further improving the sewage treatment effect of this microbial sewage treatment device. By the sewage feeding cylinder fixedly distributed around the inner top of the sewage treatment tank, it is convenient to directly filter the sewage first, reducing a part of impurities and harmful substances. By the sewage discharge pipe fixedly connected to the lower end of the side of the sewage treatment tank, it is convenient to manually operate to discharge the sewage. According to the disclosed technical solutions, when the existing biological treatment equipment for sewage is in use, on the one hand, when using the fermentation of microorganisms for sewage treatment, it is easy to cause incomplete fermentation due to the large particles of solid pollutants in the sewage, which is not conducive to improving the sewage treatment efficiency; on the other hand, when continuously carrying out biological treatment of sewage, it is easy for the sewage just added into the biological tank to be directly discharged, which is not conducive to ensuring the treatment effect; on the third hand, when discharging the sewage outwards, it is easy for solid particles to deposit at the bottom of the biological tank, which is not only not conducive to ensuring the sewage treatment effect, but also not conducive to the sludge cleaning work. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a biological treatment system for leather sewage to solve the problems put forward in the above background technology. The structure of the present invention is novel and has various functions, and is applicable to the biological treatment of sewage generated by leather processing.

[0004] To achieve the above object, the present invention is realized by the following technical solutions: A biological treatment system for leather sewage, including a tank body and a biological pond. An inlet component is installed on the tank body, and the inlet component includes an inlet pipe and a conical hopper. A filtering component is installed on the tank body, and the filtering component includes a fixed disk and a filter cylinder. A driving component is installed on the tank body, and the driving component includes a motor one and a screw rod. A grinding component is installed on the tank body, and the grinding component includes a rotating disk and a support rod. A support component is installed on the tank body, and the support component includes a bottom sleeve and a piston. A locking component is installed on the support rod, and the locking component includes a slider and a guide rod. A partitioning component is installed on the biological pond, and the partitioning component includes a fixed plate and a movable plate. A moving component is installed on the biological pond, and the moving component includes an outer sleeve and a motor two.

[0005] Furthermore, the conical hopper is welded on the inner wall of the top of the tank body, the inlet pipe is welded on the top of one side of the tank body, the motor one is installed on the top of the tank body by bolts, the fixed disk is installed on the inner wall of the tank body by bolts, leakage openings are provided around the fixed disk, the top of the filter cylinder is welded to the bottom of the conical hopper, the bottom of the filter cylinder is installed on the top of the fixed disk by bolts, the top end of the screw rod is key-connected to the output shaft of the motor one, and the bottom end of the screw rod sequentially passes through the filter cylinder and the fixed disk and extends to the bottom of the fixed disk.

[0006] Furthermore, the rotating disk is installed on the bottom of the fixed disk, a rib groove is provided at the center of the rotating disk, a prism is welded at the bottom end of the screw rod, and the prism is stuck on the inner wall of the rib groove. The top end of the support rod is installed on the bottom of the rotating disk through a bearing. The bottom sleeve is welded on the inner wall of the bottom of the tank body, the outer side of the piston is hermetically stuck on the inner wall of the bottom sleeve, the bottom end of the support rod is installed on the top of the piston through a bearing, and the bottom of the piston is connected to the inner wall of the bottom of the tank body through a first spring.

[0007] Furthermore, a sliding groove is provided at the bottom of the tank body, the outer side of the slider is stuck on the inner wall of the sliding groove, the bottom end of the guide rod is welded to the top of the slider, the top end of the guide rod sequentially passes through the piston and the support rod through a sealing ring and extends to the bottom of the rotating disk. Threaded patterns are provided at the top end of the guide rod, the bottom of the slider, and the bottom of the sliding groove. Hydraulic oil is filled inside the bottom sleeve, and the hydraulic oil is located at the bottom of the piston. A rotating rod is welded on the outer side of the support rod.

[0008] Further, the tank body is connected to the biological pond through a float valve. The fixed plate is welded to the inner wall of the biological pond. The outer side of the movable plate is stuck on the inner wall of the biological pond. The height of the movable plate is higher than that of the fixed plate. The movable plate and the fixed plate are alternately distributed on the inner side of the biological pond. The distance between the movable plates is equal to the distance between the fixed plates. Partition plates are installed on the inner walls on both sides of the biological pond, and the partition plates are hermetically stuck on the top of the movable plate.

[0009] Further, a connecting rod is installed on the movable plate, a through hole is formed in the fixed plate, the connecting rod passes through the through hole and is welded and fixed to all the movable plates. A wedge-shaped opening is stuck at the bottom of the movable plate, a wedge-shaped plate is stuck on the inner wall of the wedge-shaped opening, and the top of the wedge-shaped plate is installed on the inner wall of the wedge-shaped opening through a rotating shaft. An outlet pipe is welded on the other side of the biological pond.

[0010] Further, the second motor is installed on one side of the biological pond through bolts. The outer sleeve is welded to the inner wall on one side of the biological pond. A lead screw is installed on the output shaft of the second motor. A push plate is sleeved on the outer side of the lead screw through a thread. An inner sleeve is stuck on the inner wall of the outer sleeve, and the periphery of the push plate is stuck on the inner wall of the inner sleeve.

[0011] Further, both ends of the push plate are connected to the inner walls at both ends of the inner sleeve through the second springs. A connecting sleeve is welded to one end of the inner sleeve, and the top of the movable plate is welded to the bottom of the connecting sleeve.

[0012] Further, an arc groove is formed in the inner wall at the top of the outer sleeve, a groove is formed in the top of the inner sleeve, and a clamping plate is stuck inside the groove.

[0013] Further, the bottom of the clamping plate is connected to the inner wall at the bottom of the groove through the third spring. An arc-shaped clamping pattern is formed on the top of the clamping plate, and the arc-shaped clamping pattern is stuck inside the arc groove. The arc grooves are evenly distributed on the top of the outer sleeve. The centers of the arc-shaped clamping pattern and the arc groove are located inside the clamping plate. An exhaust valve is installed on the top of the biological pond.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. When the biological treatment system for leather wastewater is in use, the wastewater generated by leather processing is passed through the inlet pipe into the inner side of the tank body, and the wastewater falls into the inner side of the filter cartridge through the cone bucket. The motor rotates through the screw, and the water flows out after being filtered by the filter cartridge. A part of the water and solid pollutants are pushed down to the top of the turntable by the screw on the inner side of the filter cartridge. The screw drives the turntable to rotate, and the solid pollutants are ground into tiny particles between the turntable and the fixed plate, so that they can be suspended in the water for a long time. The turntable drives the guide rod through the card groove, and then the guide rod drives the support rod and the rotating rod to rotate, effectively mixing the water at the bottom of the tank body and the ground tiny particles, so as to ensure the sewage transported to the biological pool. Uniformity. When there are many solid particles, the solid particles squeeze the turntable downward, and the turntable squeezes the piston downward through the support rod. The piston compresses the spring and moves downward, and the piston pushes the slider downward on the inner side of the slide groove through the hydraulic oil. The slider drives the guide rod to separate from the turntable, so that the turntable rotates on the top of the support rod through the bearing, avoiding the reduction of the grinding ability of the turntable due to the rotation of the turntable rod. It will be able to effectively grind large particles into small particles, improve the fermentation efficiency of pollutants during biological fermentation, avoid a small amount of large particles of pollutants cannot be effectively fermented, and can automatically adjust the power distribution for stirring and grinding according to the concentration of the particles, to ensure the grinding efficiency of solids and the uniform mixing of sewage.

[0016] 2. When the biological treatment system for leather wastewater is in use, the mixed wastewater enters the biological pool through the float valve for fermentation. The second motor drives the push plate through the screw rod, and the push plate pushes the inner sleeve to move left and right under the limit of the outer sleeve through the second spring. When the inner sleeve moves to the left, the sleeve drives the flap to move to the left, and the wastewater pushes the wedge plate through the water pressure, so that the wastewater on the left side of the flap flows to the right side of the flap through the wedge. When the inner sleeve moves to the right, the inner sleeve drives the flap to move to the right through the sleeve, and the wedge plate performs a one-way seal on the flap under the water pressure, thereby The flap pushes the sewage on the right side, and the sewage passes over the top of the fixed plate and flows to the right side of the fixed plate, so that the sewage flows to the right regularly within the interval of a fixed plate on the inner side of the biological pool until the sewage flows to the right side of the rightmost flap and is discharged outward through the outlet pipe under the squeezing of the flap, so that the sewage entering the biological pool can all get the same fermentation time, avoiding the fermentation time of different sewage due to the fluidity of the sewage, thereby ensuring the thoroughness of the biological treatment of the sewage, and the biogas produced by the fermentation is discharged outward through the exhaust valve.

[0017] 3. When the biological treatment system for leather sewage is in use, when the screw rod drives the push plate to move, the push plate generates a thrust on the inner sleeve through the second spring. As the push plate moves, the elastic force of the second spring on the inner sleeve increases until the elastic force of the second spring on the inner sleeve is greater than the clamping force of the arc-shaped card pattern on the clamping plate on the arc groove under the elastic force of the third spring. As a result, the arc-shaped card pattern on the clamping plate is pushed downward by the arc groove to the inner side of the groove on the inner sleeve. The second spring pushes the inner sleeve to move a distance equal to the interval of one arc groove, and the third spring pushes the clamping plate. The clamping plate is clamped again on the inner side of the arc groove through the arc-shaped card pattern. As a result, when the inner sleeve moves, it will continuously generate horizontal vibrations. Then, the inner sleeve drives the movable plate to generate horizontal vibrations through the connecting sleeve. When the movable plate pushes the sewage to flow, the vibrations are used to agitate the sewage, effectively mixing the settled sludge back into the sewage again. This not only ensures the uniformity of the sewage but also effectively discharges the sludge, eliminating the need for sludge cleaning work and improving the fermentation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a biological treatment system for leather sewage according to the present invention;

[0019] Figure 2 is a cross-sectional view of a biological treatment system for leather sewage according to the present invention;

[0020] Figure 3 is a schematic structural diagram of the fixed plate of a biological treatment system for leather sewage according to the present invention;

[0021] Figure 4 is a schematic structural diagram of the turntable of a biological treatment system for leather sewage according to the present invention;

[0022] Figure 5 is a schematic structural diagram of the bottom sleeve of a biological treatment system for leather sewage according to the present invention;

[0023] Figure 6 is a schematic structural diagram of the biological pond of a biological treatment system for leather sewage according to the present invention;

[0024] Figure 7 is a schematic structural diagram of the outer sleeve of a biological treatment system for leather sewage according to the present invention;

[0025] Figure 8 is a schematic structural diagram of the exhaust valve of a biological treatment system for leather sewage according to the present invention;

[0026] Figure 9 is a schematic structural diagram of the wedge plate of a biological treatment system for leather sewage according to the present invention;

[0027] In the figure: 1. Tank body; 2. Biological pond; 3. Inlet pipe; 4. Hopper; 5. First motor; 6. Screw; 7. Filter cartridge; 8. Fixed plate; 9. Prism; 10. Turntable; 11. Prismatic groove; 12. Support rod; 13. Bottom sleeve; 14. Piston; 15. First spring; 16. Chute; 17. Slide block; 18. Guide rod; 19. Threaded groove; 20. Rotating rod; 21. Float valve; 22. Fixed plate; 23. Movable plate; 24. Partition plate; 25. Wedge plate; 26. Outer sleeve; 27. Second motor; 28. Lead screw; 29. Pushing plate; 30. Inner sleeve; 31. Second spring; 32. Connecting sleeve; 33. Arc groove; 34. Clamping plate; 35. Third spring; 36. Connecting rod; 37. Exhaust valve; 38. Outlet pipe. Detailed implementation manner

[0028] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation manners.

[0029] Please refer to Figures 1 to 9, the present invention provides a technical solution: a biological treatment system for leather sewage, including a tank body 1 and a biological pond 2. An inlet assembly is installed on the tank body 1, and the inlet assembly includes an inlet pipe 3 and a conical hopper 4. A filtering assembly is installed on the tank body 1, and the filtering assembly includes a fixed disk 8 and a filter cylinder 7. A driving assembly is installed on the tank body 1, and the driving assembly includes a first motor 5 and a screw rod 6. A grinding assembly is installed on the tank body 1, and the grinding assembly includes a rotating disk 10 and a support rod 12. A supporting assembly is installed on the tank body 1, and the supporting assembly includes a bottom sleeve 13 and a piston 14. A locking assembly is installed on the support rod 12, and the locking assembly includes a slider 17 and a guide rod 18. A partitioning assembly is installed on the biological pond 2, and the partitioning assembly includes a fixed plate 22 and a movable plate 23. A moving assembly is installed on the biological pond 2, and the moving assembly includes an outer sleeve 26 and a second motor 27. The conical hopper 4 is welded to the inner wall of the top of the tank body 1, and the inlet pipe 3 is welded to the top of one side of the tank body 1. The first motor 5 is installed on the top of the tank body 1 by bolts. The fixed disk 8 is installed on the inner wall of the tank body 1 by bolts. Leakage openings are provided around the fixed disk 8. The top of the filter cylinder 7 is welded to the bottom of the conical hopper 4, and the bottom of the filter cylinder 7 is installed on the top of the fixed disk 8 by bolts. The top end of the screw rod 6 is key-connected to the output shaft of the first motor 5. The bottom end of the screw rod 6 sequentially passes through the filter cylinder 7 and the fixed disk 8 and extends to the bottom of the fixed disk 8. The rotating disk 10 is installed at the bottom of the fixed disk 8. A rib groove 11 is provided at the center of the rotating disk 10. The bottom end of the screw rod 6 is welded with a prism 9, and the prism 9 is stuck on the inner wall of the rib groove 11. The top end of the support rod 12 is installed on the bottom of the rotating disk 10 through a bearing. The bottom sleeve 13 is welded to the inner wall of the bottom of the tank body 1. The outer side of the piston 14 is hermetically stuck on the inner wall of the bottom sleeve 13. The bottom end of the support rod 12 is installed on the top of the piston 14 through a bearing. The bottom of the piston 14 is connected to the inner wall of the bottom of the tank body 1 through a first spring 15. A chute 16 is provided at the bottom of the tank body 1. The outer side of the slider 17 is stuck on the inner wall of the chute 16. The bottom end of the guide rod 18 is welded to the top of the slider 17. The top end of the guide rod 18 sequentially passes through the piston 14 and the support rod 12 through a sealing ring and extends to the bottom of the rotating disk 10. Threaded grooves 19 are provided at the top end of the guide rod 18, the bottom of the slider 17, and the bottom of the chute 16. Hydraulic oil is filled inside the bottom sleeve 13, and the hydraulic oil is located at the bottom of the piston 14. A rotating rod 20 is welded to the outer side of the support rod 12. During use, the sewage generated by leather processing is introduced into the inside of the tank body 1 through the inlet pipe 3. The sewage falls into the inside of the filter cylinder 7 through the conical hopper 4. The first motor 5 rotates through the screw rod 6, and the water flows out after being filtered by the filter cylinder 7. Part of the water and solid pollutants are pushed downward by the screw rod 6 inside the filter cylinder 7 to the top of the rotating disk 10. The screw rod 6 drives the rotating disk 10 to rotate, and the solid pollutants are ground into tiny particles between the rotating disk 10 and the fixed disk 8 so that they can be suspended in water for a long time.The turntable 10 drives the guide rod 18 through the card pattern 19, and further enables the guide rod 18 to drive the support rod 12 and the rotating rod 20 to rotate, effectively mixing the moisture at the bottom of the tank body 1 and the fine particles of grinding, so as to ensure the uniformity of the sewage conveyed to the biological pond 2. When there are more solid particles, the solid particles squeeze the turntable 10 downward. The turntable 10 squeezes the piston 14 downward through the support rod 12. The piston 14 compresses the first spring 15 and moves downward, and enables the piston 14 to push the slider 17 downward inside the chute 16 through the hydraulic oil. The slider 17 drives the guide rod 18 to separate from the turntable 10, enabling the turntable 10 to rotate at the top of the support rod 12 through the bearing, avoiding weakening the grinding ability of the turntable 10 due to the rotation of the rotating rod 20, effectively grinding large particles into small particles, improving the fermentation efficiency of pollutants during biological fermentation, avoiding that a small amount of large particle pollutants cannot be effectively fermented, and being able to automatically adjust the power distribution of the stirring and grinding work according to the concentration of the particles, ensuring the grinding efficiency of the solid matter and ensuring the uniform mixing of the sewage.

[0030] In this embodiment, the tank body 1 is connected to the biological pond 2 through a floating valve 21. The fixed plate 22 is welded to the inner wall of the biological pond 2. The outer side of the movable plate 23 is clamped on the inner wall of the biological pond 2. The height of the movable plate 23 is higher than that of the fixed plate 22. The movable plate 23 and the fixed plate 22 are alternately distributed inside the biological pond 2. The distance between the movable plates 23 is equal to the distance between the fixed plates 22. Partition plates 24 are installed on the inner walls on both sides of the biological pond 2. The partition plates 24 are hermetically clamped on the top of the movable plate 23. A connecting rod 36 is installed on the movable plate 23. A through hole is provided on the fixed plate 22. The connecting rod 36 passes through the through hole and is welded and fixed to all the movable plates 23. A wedge-shaped opening is clamped at the bottom of the movable plate 23. A wedge plate 25 is clamped on the inner wall of the wedge-shaped opening. The top of the wedge plate 25 is installed on the inner wall of the wedge-shaped opening through a rotating shaft. An outlet pipe 38 is welded to the other side of the biological pond 2. The second motor 27 is installed on one side of the biological pond 2 through bolts. The outer sleeve 26 is welded to the inner wall on one side of the biological pond 2. A lead screw 28 is installed on the output shaft of the second motor 27. A push plate 29 is sleeved on the outer side of the lead screw 28 through a thread. An inner sleeve 30 is clamped on the inner wall of the outer sleeve 26. The periphery of the push plate 29 is clamped on the inner wall of the inner sleeve 30. Both ends of the push plate 29 are connected to the inner walls at both ends of the inner sleeve 30 through second springs 31. A connecting sleeve 32 is welded to one end of the inner sleeve 30. The top of the movable plate 23 is welded to the bottom of the connecting sleeve 32. During use, the mixed sewage enters the biological pond 2 through the floating valve 21 for fermentation. The second motor 27 drives the push plate 29 through the lead screw 28. The push plate 29 pushes the inner sleeve 30 through the second springs 31 to move left and right under the limitation of the outer sleeve 26. When the inner sleeve 30 moves to the left, the connecting sleeve 32 drives the movable plate 23 to move to the left. The sewage pushes open the wedge plate 25 through water pressure, so that the sewage on the left side of the movable plate 23 flows to the right side of the movable plate 23 through the wedge-shaped opening. When the inner sleeve 30 moves to the right, the inner sleeve 30 drives the movable plate 23 to move to the right through the connecting sleeve 32. The wedge plate 25 performs one-way sealing on the movable plate 23 under water pressure. Then, the movable plate 23 pushes the sewage on the right side. The sewage crosses over the top of the fixed plate 22 and flows to the right side of the fixed plate 22, so that the sewage regularly flows to the right by the interval of one fixed plate 22 inside the biological pond 2 until the sewage flows to the right side of the rightmost movable plate 23 and is discharged outward through the outlet pipe 38 under the extrusion of the movable plate 23, ensuring that the sewage introduced into the biological pond 2 can all undergo fermentation for the same period of time, avoiding different fermentation times for different sewage due to the fluidity of the sewage, and thus guaranteeing the thoroughness of the biological treatment of the sewage. The biogas generated by fermentation is discharged outward through the exhaust valve 37.

[0031] In this embodiment, an arc groove 33 is formed in the inner wall at the top of the outer sleeve 26, a groove is formed at the top of the inner sleeve 30, a clamping plate 34 is clamped inside the groove, the bottom of the clamping plate 34 is connected to the inner wall of the bottom of the groove through a third spring 35, an arc-shaped clamping pattern is formed at the top of the clamping plate 34, and the arc-shaped clamping pattern is clamped inside the arc groove 33. The arc grooves 33 are evenly distributed at the top of the outer sleeve 26, and the centers of the arc-shaped clamping pattern and the arc groove 33 are located inside the clamping plate 34. An exhaust valve 37 is installed at the top of the biological pond 2. When the screw rod 28 drives the push plate 29 to move, the push plate 29 generates a thrust on the inner sleeve 30 through the second spring 31. As the push plate 29 moves, the elastic force of the second spring 31 on the inner sleeve 30 increases until the elastic force of the second spring 31 on the inner sleeve 30 is greater than the clamping force of the arc-shaped clamping pattern on the arc groove 33 by the clamping plate 34 under the elastic force of the third spring 35. Furthermore, the arc-shaped clamping pattern on the clamping plate 34 is pushed downward by the arc groove 33 to the inside of the groove on the inner sleeve 30. The second spring 31 pushes the inner sleeve 30 to move by a distance of one arc groove 33. The third spring 35 pushes the clamping plate 34, and the clamping plate 34 is clamped again inside the arc groove 33 through the arc-shaped clamping pattern. Furthermore, when the inner sleeve 30 moves, continuous horizontal vibrations will be generated, and then the inner sleeve 30 drives the movable plate 23 to generate horizontal vibrations through the connecting sleeve 32. When the movable plate 23 pushes the sewage to flow, the vibrations are used to agitate the sewage, effectively mixing the settled sludge into the sewage again, ensuring the uniformity of the sewage and effectively discharging the sludge without the need for sludge cleaning work, thereby improving the fermentation efficiency.

[0032] The biological treatment system for leather wastewater provides power to all electrical equipment through an external power supply. When in use, the wastewater generated by leather processing is introduced into the inner side of the tank body 1 through the inlet pipe 3, and the wastewater falls to the inner side of the filter cartridge 7 through the cone bucket 4. The motor 5 rotates through the screw 6, and the water flows out after being filtered by the filter cartridge 7. A part of the water and solid pollutants are pushed downward to the top of the turntable 10 by the screw 6 on the inner side of the filter cartridge 7. The screw 6 drives the turntable 10 to rotate, and the solid pollutants are ground into tiny particles between the turntable 10 and the fixed plate 8, so that they can be suspended in the water for a long time. The turntable 10 drives the guide rod 18 through the card groove 19, and then the guide rod 18 drives the support rod 12 and the rotating rod 20 to rotate, which effectively removes the water at the bottom of the tank body 1 and the ground particles. The ground tiny particles are fully mixed to ensure the uniformity of the sewage transported to the biological pool 2. When there are many solid particles, the solid particles squeeze the turntable 10 downward, and the turntable 10 squeezes the piston 14 downward through the support rod 12. The piston 14 compresses the spring 15 and moves downward, and the piston 14 pushes the slider 17 downward on the inner side of the slide groove 16 through the hydraulic oil. The slider 17 drives the guide rod 18 to separate from the turntable 10, so that the turntable 10 rotates at the top of the support rod 12 through the bearing, avoiding the reduction of the grinding ability of the turntable 10 due to the rotation of the rotating rod 20, and can effectively grind large particles into small particles, improve the fermentation efficiency of pollutants during biological fermentation, avoid a small amount of large particles of pollutants can not be effectively fermented, and can be based on the concentration of particles. The power distribution for stirring and grinding is automatically adjusted to ensure the grinding efficiency of solids and the uniform mixing of sewage. The mixed sewage enters the biological pool 2 through the float valve 21 for fermentation. The motor 27 drives the push plate 29 through the screw rod 28. The push plate 29 pushes the inner sleeve 30 to move left and right under the limit of the outer sleeve 26 through the spring 231. When the inner sleeve 30 moves to the left, the sleeve 32 drives the flap 23 to move to the left. The sewage pushes the wedge plate 25 open through the water pressure, so that the sewage on the left side of the flap 23 flows to the right side of the flap 23 through the wedge opening. When the inner sleeve 30 moves to the right, the inner sleeve 30 drives the flap 23 to move to the right through the sleeve 32. The wedge plate 25 performs a one-way seal on the flap 23 under the water pressure, so that the flap 23 pushes the right side. Sewage, the sewage passes over the top of the fixed plate 22 and flows to the right side of the fixed plate 22, so that the sewage regularly flows to the right within the interval of a fixed plate 22 on the inner side of the biological pool 2, until the sewage flows to the right side of the rightmost flap 23, and is discharged outward through the outlet pipe 38 under the squeezing of the flap 23, so that the sewage introduced into the biological pool 2 can all be fermented for the same time, avoiding the fermentation time of different sewage due to the fluidity of the sewage, thereby ensuring the thoroughness of the biological treatment of the sewage, and the biogas generated by the fermentation is discharged outward through the exhaust valve 37. When the screw rod 28 drives the push plate 29 to move, the push plate 29 generates a thrust on the inner sleeve 30 through the spring 2 31. As the push plate 29 moves, the elastic force of the spring 2 31 on the inner sleeve 30 increases.Until the elastic force of the second spring 31 on the inner sleeve 30 is greater than the clamping force of the clamping plate 34 on the arc groove 33 through the arc-shaped card pattern under the elastic force of the third spring 35, so that the arc-shaped card pattern on the clamping plate 34 is pushed downward by the arc groove 33 to the inner side of the groove on the inner sleeve 30. The second spring 31 pushes the inner sleeve 30 to move by the interval of one arc groove 33. The third spring 35 pushes the clamping plate 34, and the clamping plate 34 is clamped again on the inner side of the arc groove 33 through the arc-shaped card pattern. Thus, when the inner sleeve 30 moves, continuous horizontal vibrations will be generated, so that the inner sleeve 30 drives the movable plate 23 to generate horizontal vibrations through the connecting sleeve 32. When the movable plate 23 pushes the sewage to flow, the sewage is agitated by the vibrations, effectively mixing the settled sludge back into the sewage again. This not only ensures the uniformity of the sewage but also effectively discharges the sludge, eliminating the need for sludge cleaning work and improving the fermentation efficiency.

[0033] The foregoing shows and describes the basic principles, main features, and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biological treatment system for leather sewage, comprising a tank body (1) and a biological pond (2). An inlet assembly is installed on the tank body (1), and the inlet assembly includes an inlet pipe (3) and a conical hopper (4), characterized in that: A filter assembly is installed on the tank body (1). The filter assembly includes a fixed disk (8) and a filter cartridge (7). A driving assembly is installed on the tank body (1). The driving assembly includes a first motor (5) and a screw rod (6). A grinding assembly is installed on the tank body (1). The grinding assembly includes a turntable (10) and a support rod (12). A support assembly is installed on the tank body (1). The support assembly includes a bottom sleeve (13) and a piston (14). A locking assembly is installed on the support rod (12). The locking assembly includes a slider (17) and a guide rod (18). A partitioning assembly is installed on the biological pond (2). The partitioning assembly includes a fixed plate (22) and a movable plate (23). A moving assembly is installed on the biological pond (2). The moving assembly includes an outer sleeve (26) and a second motor (27).

2. The biological treatment system for leather sewage according to claim 1, characterized in that: The conical hopper (4) is welded to the inner wall of the top of the tank body (1). The inlet pipe (3) is welded to the top of one side of the tank body (1). The first motor (5) is installed on the top of the tank body (1) by bolts. The fixed disk (8) is installed on the inner wall of the tank body (1) by bolts. Leakage openings are formed around the fixed disk (8). The top of the filter cartridge (7) is welded to the bottom of the conical hopper (4). The bottom of the filter cartridge (7) is installed on the top of the fixed disk (8) by bolts. The top end of the screw rod (6) is key-connected to the output shaft of the first motor (5). The bottom end of the screw rod (6) sequentially passes through the filter cartridge (7) and the fixed disk (8) and extends to the bottom of the fixed disk (8).

3. A biological treatment system for leather sewage according to claim 2, characterized in that: The turntable (10) is installed at the bottom of the fixed disk (8). A prism groove (11) is formed at the center of the turntable (10). A prism (9) is welded to the bottom end of the screw rod (6). The prism (9) is stuck on the inner wall of the prism groove (11). The top end of the support rod (12) is installed at the bottom of the turntable (10) through a bearing. The bottom sleeve (13) is welded to the inner wall of the bottom of the tank body (1). The outer side of the piston (14) is hermetically stuck on the inner wall of the bottom sleeve (13). The bottom end of the support rod (12) is installed at the top of the piston (14) through a bearing. The bottom of the piston (14) is connected to the inner wall of the bottom of the tank body (1) by a first spring (15).

4. A biological treatment system for leather sewage according to claim 3, characterized in that: A sliding groove (16) is formed at the bottom of the tank body (1). The outer side of the slider (17) is stuck on the inner wall of the sliding groove (16). The bottom end of the guide rod (18) is welded to the top of the slider (17). The top end of the guide rod (18) sequentially passes through the piston (14) and the support rod (12) through a sealing ring and extends to the bottom of the turntable (10). Threaded grooves (19) are formed at the top end of the guide rod (18), the bottom of the slider (17), and the bottom of the sliding groove (16). Hydraulic oil is filled inside the bottom sleeve (13). The hydraulic oil is located at the bottom of the piston (14). A rotating rod (20) is welded to the outer side of the support rod (12).

5. A biological treatment system for leather wastewater according to claim 1, characterized in that: The tank body (1) is connected to the biological pond (2) through a float valve (21). The fixed plate (22) is welded to the inner wall of the biological pond (2). The outer side of the movable plate (23) is stuck on the inner wall of the biological pond (2). The height of the movable plate (23) is higher than that of the fixed plate (22). The movable plate (23) and the fixed plate (22) are alternately distributed inside the biological pond (2). The distance between the movable plates (23) is equal to the distance between the fixed plates (22). Partition plates (24) are installed on the inner walls on both sides of the biological pond (2), and the partition plates (24) are hermetically stuck on the tops of the movable plates (23).

6. The biological treatment system for leather sewage according to claim 5, wherein: A connecting rod (36) is installed on the movable plate (23). A through hole is formed in the fixed plate (22). The connecting rod (36) passes through the through hole and is welded and fixed to all the movable plates (23). A wedge-shaped opening is formed at the bottom of the movable plate (23), and a wedge plate (25) is stuck on the inner wall of the wedge-shaped opening. The top of the wedge plate (25) is installed on the inner wall of the wedge-shaped opening through a rotating shaft. An outlet pipe (38) is welded on the other side of the biological pond (2).

7. A biological treatment system for leather sewage according to claim 6, characterized in that: The second motor (27) is installed on one side of the biological pond (2) through bolts. The outer sleeve (26) is welded to the inner wall on one side of the biological pond (2). A lead screw (28) is installed on the output shaft of the second motor (27). A push plate (29) is sleeved on the outer side of the lead screw (28) through a thread. An inner sleeve (30) is stuck on the inner wall of the outer sleeve (26). The periphery of the push plate (29) is stuck on the inner wall of the inner sleeve (30).

8. A biological treatment system for leather sewage according to claim 7, characterized in that: Both ends of the push plate (29) are connected to the inner walls at both ends of the inner sleeve (30) through the second springs (31). A connecting sleeve (32) is welded to one end of the inner sleeve (30). The top of the movable plate (23) is welded to the bottom of the connecting sleeve (32).

9. The biological treatment system for leather sewage according to claim 8, characterized in that: An arc-shaped groove (33) is formed in the inner wall at the top of the outer sleeve (26). A groove is formed at the top of the inner sleeve (30), and a clamping plate (34) is stuck inside the groove.

10. A biological treatment system for leather sewage according to claim 9, characterized in that: The bottom of the clamping plate (34) is connected to the inner wall at the bottom of the groove through the third spring (35). An arc-shaped clamping pattern is formed at the top of the clamping plate (34), and the arc-shaped clamping pattern is stuck inside the arc-shaped groove (33). The arc-shaped grooves (33) are evenly distributed on the top of the outer sleeve (26). The centers of the arc-shaped clamping pattern and the arc-shaped groove (33) are located inside the clamping plate (34). An exhaust valve (37) is installed on the top of the biological pond (2).

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