Waste water treatment equipment for garbage truck and treatment method thereof

Abstract

The invention discloses garbage truck wastewater treatment equipment and a treatment method thereof, and relates to the technical field of garbage wastewater treatment.The garbage truck wastewater treatment equipment comprises a treatment box and further comprises a filtering box, a fixing rod is fixed to the bottom of the filtering box, the lower end of the fixing rod is fixed to the upper end of the treatment box, and the outer side of the filtering box is fixedly sleeved with a collecting box; the upper end of the collecting box is connected with a box cover, and a water guide insertion pipe fixedly connected with the box cover is arranged on the box cover in a penetrating mode; the filtering mechanism is arranged in the filtering box and is used for filtering the wastewater; the intercepting mechanism is connected with the box cover; the biodegradation treatment mechanism is arranged in the treatment box and is used for biodegrading the filtered wastewater, and the bottom of the filter box is connected with a first connecting pipe. According to the invention, the integrated treatment of interception, filtration and purification of wastewater can be realized, and the wastewater treatment efficiency and treatment effect of the garbage truck are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage and wastewater treatment, and particularly to a wastewater treatment device for a garbage truck and a treatment method thereof. Background Art

[0002] With the acceleration of the urbanization process and the increasing workload of garbage collection, a large amount of wastewater is generated during the operation of garbage trucks. The composition of this wastewater is complex, often containing large debris, suspended solids, organic matter and other pollutants. If directly discharged without effective treatment, it will cause serious pollution to the surrounding environment, damage the ecological balance and threaten the health of residents. Therefore, it is urgent to properly treat the wastewater of garbage trucks.

[0003] When treating the wastewater of existing garbage trucks, there are still many problems to be solved urgently. First of all, the filtration link is one of the key steps in wastewater treatment, but there are certain defects in the design of the filtration structure of existing equipment. Most equipment adopts a single-stage filtration method, and all pollutants in the wastewater are concentrated on a single filter plate for filtration. This makes the filter plate bear a large filtration pressure and is extremely easy to be blocked in a short time, requiring frequent cleaning or replacement of the filter plate. This not only increases the labor operation cost, but also causes the interruption of the wastewater treatment process and affects the overall treatment effect.

[0004] Secondly, as an important means to remove organic matter in wastewater, the effect of biodegradation treatment is limited in existing equipment. The biodegradation treatment components in traditional equipment, such as biofilm components, etc., have a relatively fixed working mode, and the flow state of wastewater during the treatment process is relatively stable, lacking an effective turbulent flow effect, resulting in insufficient contact between the biofilm and the wastewater and low mass transfer efficiency. Furthermore, it affects the efficiency and treatment effect of biodegradation treatment and is difficult to meet the requirements for efficient removal of organic matter in the wastewater of garbage trucks. And during the biodegradation treatment process, pollutants such as sludge are easily attached to the surface of the biofilm component, forming a fouling phenomenon. Existing equipment lacks effective anti-fouling measures. After the sludge adheres to the biofilm component, it will hinder the contact between the wastewater and the biofilm, reduce the activity of the biofilm, and seriously affect the biodegradation treatment effect. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a wastewater treatment device for a garbage truck and a treatment method thereof.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme: A wastewater treatment device for a garbage truck, including a treatment tank, further including: Filter box, a fixing rod is fixed at the bottom of the filter box, the lower end of the fixing rod is fixed at the upper end of the treatment box, a collection box is fixedly sleeved outside the filter box, a box cover is connected to the upper end of the collection box, and a water guiding insertion tube fixedly connected to the box cover is provided through the box cover; Filtering mechanism, arranged inside the filter box, for filtering wastewater; Interception mechanism, connected to the box cover; Biodegradation treatment mechanism, arranged inside the treatment box, for biodegrading the filtered wastewater. A first connecting pipe is connected to the bottom of the filter box, and the end of the first connecting pipe away from the filter box penetrates through the top of the treatment box and is connected to the biodegradation treatment mechanism.

[0007] As a further improvement of the present invention, the interception mechanism includes a water collecting hopper, an interception grid is arranged inside the water collecting hopper, a communicating pipe is connected to the side wall of the water collecting hopper, and the end of the communicating pipe away from the water collecting hopper is connected to the water guiding insertion tube.

[0008] As a further improvement of the present invention, the filtering mechanism includes a hollow column arranged inside the filter box. An electric telescopic rod is installed at the bottom of the filter box, and the telescopic end of the electric telescopic rod penetrates through the filter box and is fixed at the lower end of the hollow column. A cover plate matching with the filter box is fixedly sleeved on the side wall of the hollow column near the upper end. Three rotating rings arranged vertically are rotatably sleeved on the outer side wall of the hollow column. A filter screen plate is fixedly sleeved on the outer side wall of each rotating ring. Three magnetic attraction rotating blocks matching with the rotating rings are arranged vertically inside the hollow column. The adjacent magnetic attraction rotating blocks are connected by a commutation differential linkage structure. A first motor is installed on the inner top wall of the hollow column, and the output shaft of the first motor is fixedly connected to the upper end of the uppermost magnetic attraction rotating block.

[0009] As a further improvement of the present invention, the biodegradation treatment mechanism includes a fixing plate fixedly connected inside the treatment box. A hollow fiber membrane bundle is arranged through the fixing plate, and the hollow fiber membrane bundle is rotatably connected to the fixing plate. A water collecting pipe fixedly connected to it is arranged through the middle of the hollow fiber membrane bundle. A pressure accumulation and back blowing structure is arranged on the side wall of the water collecting pipe near the upper end. An aeration disc is fixed at the lower end of the water collecting pipe. A gas supply driving structure connected to the hollow fiber membrane bundle and the aeration disc is arranged at the upper end of the fixing plate. A second connecting pipe is connected to the side wall of the water collecting pipe through a second rotary joint. The end of the second connecting pipe away from the second rotary joint penetrates out of the treatment box and is connected to a water pump. The output end of the water pump is connected to a water outlet pipe.

[0010] As a further improvement of the present invention, the commutation differential linkage structure includes a first gear fixedly connected to the lower end of the magnetic attraction rotating block above and a third gear fixedly connected to the upper end of the magnetic attraction rotating block below. A second gear is meshed between the first gear and the third gear. The second gear is rotatably connected to the side wall of the hollow column, and the diameter of the first gear is larger than that of the third gear.

[0011] As a further improvement of the present invention, first limiting rings are provided on both the upper and lower sides of the rotating ring. The first limiting rings are fixedly sleeved on the outer side wall of the hollow column. Second limiting rings are provided on both the upper and lower sides of the magnetic attraction rotating block. The second limiting rings are fixedly connected to the inner wall of the hollow column.

[0012] As a further improvement of the present invention, the pressure accumulation and back-blowing structure includes a mounting plate fixedly sleeved on the side wall of the water collecting pipe. Two device cavities are provided inside the mounting plate. The device cavities are communicated with the inside of the water collecting pipe through air pipes. A pressure accumulation and back-blowing component is provided inside the device cavities. The pressure accumulation and back-blowing component includes a sliding plug slidably arranged inside the device cavity. A pull spring is fixedly connected to the side wall of the plug close to the air pipe. The end of the pull spring away from the plug is fixedly connected to the inner wall of the device cavity. A magnetic ring is fixed on the inner wall of the device cavity. The magnetic ring is located on the side of the plug away from the pull spring.

[0013] As a further improvement of the present invention, the air supply driving structure includes a second motor installed on the upper end of the fixing plate. The output shaft of the second motor is fixedly connected with a crank. A fifth gear is fixedly sleeved on the side wall of the crank. A fourth gear meshing with the fifth gear is fixedly sleeved on the side wall of the hollow fiber membrane bundle. The end of the crank away from the second motor is rotatably connected to the inner top wall of the processing box. A connecting rod is rotatably sleeved on the crank. A piston cylinder is fixed on the inner top wall of the processing box. A piston is slidably arranged inside the piston cylinder. The end of the connecting rod away from the crank is rotatably connected to the piston. An air suction pipe and an air outlet pipe are provided on the side wall of the piston cylinder. The air outlet pipe and the air suction pipe penetrate through the processing box. The end of the air outlet pipe away from the piston cylinder is connected to the lower end of the aeration disc through a first rotary joint.

[0014] As a further improvement of the present invention, a sewage discharge pipe is connected to the lower part of the side wall of the processing box. A debris collecting box is arranged inside the collecting box. The debris collecting box is located outside the filtering box.

[0015] A method for treating wastewater of a garbage truck uses the above-mentioned garbage truck wastewater treatment equipment. The method includes the following steps: S1, Coarse interception of wastewater. Use the interception mechanism to intercept larger debris in the wastewater. S2, Fine filtration of wastewater. The intercepted wastewater passes through the connecting pipe into the filtering box, and use the filtering mechanism to conduct fine filtration treatment on the wastewater. S3. Biodegradation treatment: The filtered wastewater enters the interior of the treatment tank through the first connecting pipe, and the wastewater is subjected to biodegradation treatment by the biodegradation treatment mechanism.

[0016] Advantages of the present invention: By setting up an interception mechanism, the interception grille can intercept larger debris in the wastewater, thereby preventing larger debris from entering the interior of the equipment and avoiding blockage and failure inside the equipment.

[0017] By setting up a filtering mechanism, through the three filter plates in the filter box, the wastewater can be filtered at multiple levels, thereby reducing the filtering pressure on each filter plate, avoiding blockage, and using a commutation differential linkage structure. Moreover, the rotation speeds of the three filter plates increase sequentially from top to bottom, and the rotation directions of adjacent filter plates are opposite. Therefore, reverse differential rotation can occur between adjacent filter plates, making the movement state of the wastewater better during filtration, and thus improving the filtration efficiency of the wastewater.

[0018] By setting up a biodegradation treatment mechanism, the hollow fiber membrane bundle is used to carry out biodegradation treatment on the wastewater in the treatment tank. By driving the hollow fiber membrane bundle to rotate forward and backward, the turbulent flow effect of the wastewater can be improved, and thus the treatment effect of the hollow fiber membrane bundle on the wastewater can be enhanced.

[0019] By setting up a pressure accumulation and backwashing structure, when the rotation of the hollow fiber membrane bundle switches between forward and backward, high-pressure backwashing can be carried out by the pressure accumulation and backwashing structure, making it difficult for sludge to adhere to the membrane filaments of the hollow fiber membrane bundle, improving the anti-fouling and blockage resistance, and further maintaining the good treatment ability of the hollow fiber membrane bundle.

[0020] The present invention can realize the integrated treatment of interception, filtration, and purification of wastewater, effectively improving the treatment efficiency and treatment effect of the wastewater by the garbage truck. Description of the drawings

[0021] Figure 1 It is a schematic structural diagram of a wastewater treatment device for a garbage truck proposed by the present invention; Figure 2 It is a schematic structural diagram of the collection box, box cover, impurity collection box, filter box, filtering mechanism, fixed rod, electric telescopic rod, and first connecting block of a wastewater treatment device for a garbage truck proposed by the present invention; Figure 3 For Figure 2 The enlarged view at A in Figure 4 It is a schematic structural diagram of the biodegradation treatment mechanism of a wastewater treatment device for a garbage truck proposed by the present invention; Figure 5 It is a schematic structural diagram of the crank, connecting rod, and piston of a wastewater treatment device for a garbage truck proposed by the present invention; Figure 6 Schematic cross-sectional structure diagram of a water collecting pipe, mounting plate, and pressure accumulation and back-blowing structure of a wastewater treatment device for a garbage truck proposed by the present invention.

[0022] In the figure: 1 treatment tank, 2 fixed rod, 3 collection box, 4 box cover, 5 connecting pipe, 6 water collecting hopper, 7 intercepting grille, 8 electric telescopic rod, 9 first connecting pipe, 10 water pump, 11 water outlet pipe, 12 sewage discharge pipe, 13 air outlet pipe, 14 air suction pipe, 15 impurity collection box, 16 filter box, 17 water guiding insertion pipe, 18 cover plate, 19 hollow column, 20 first motor, 21 filter screen plate, 22 first limiting ring, 23 second limiting ring, 24 rotating ring, 25 magnetic attraction rotating block, 26 first gear, 27 second gear, 28 third gear, 29 fixing plate, 30 hollow fiber membrane bundle, 31 aeration disc, 32 first rotary joint, 33 water collecting pipe, 34 mounting plate, 35 second rotary joint, 36 fourth gear, 37 second motor, 38 fifth gear, 39 crank, 40 connecting rod, 41 piston cylinder, 42 second connecting pipe, 43 piston, 44 device cavity, 45 magnetic ring, 46 sliding plug, 47 tension spring, 48 ventilation pipe. Specific implementation manner

[0023] 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.

[0024] Referring to Figures 1-6 , a wastewater treatment device for a garbage truck includes a treatment tank 1, and further includes: a filter box 16, a fixed rod 2 is fixed to the bottom of the filter box 16, the lower end of the fixed rod 2 is fixed to the upper end of the treatment tank 1, a collection box 3 is fixedly sleeved outside the filter box 16, a sewage discharge pipe 12 is connected to the lower part of the side wall of the treatment tank 1, an exhaust pipe (not shown in the figure) is further provided at the upper part of the side wall of the treatment tank 1, an impurity collection box 15 is arranged inside the collection box 3, the impurity collection box 15 is located outside the filter box 16, and the impurity collection box 15 can be taken out from the inside of the collection box 3 to facilitate the cleaning of the impurity collection box 15. The upper end of the collection box 3 is connected with a box cover 4, one side of the box cover 4 is hinged to the collection box 3 through a hinge, a snap lock is installed on the other side of the box cover 4, and a water guiding insertion pipe 17 fixedly connected to the box cover 4 penetrates through the box cover 4; Filter mechanism, which is arranged inside the filter box 16 and used to filter wastewater. The filter mechanism includes a hollow column 19 arranged inside the filter box 16. An electric telescopic rod 8 is installed at the bottom of the filter box 16. The telescopic end of the electric telescopic rod 8 penetrates through the filter box 16 and is fixed to the lower end of the hollow column 19. A cover plate 18 that cooperates with the filter box 16 is fixedly sleeved on the side wall of the hollow column 19 near the upper end. A water guiding insertion tube 17 is inserted into the cover plate 18. The cover plate 18 is provided with a jack that cooperates with the water guiding insertion tube 17. Three rotating rings 24 arranged vertically are rotatably sleeved on the outer side wall of the hollow column 19. A filter screen plate 21 is fixedly sleeved on the outer side wall of each rotating ring 24. Three magnetic attraction rotating blocks 25 that cooperate with the rotating rings 24 are arranged vertically inside the hollow column 19. There is a magnetic attraction force between the magnetic attraction rotating blocks 25 and the rotating rings 24. Thus, by the action of the magnetic attraction force, the magnetic attraction rotating blocks 25 can drive the rotating rings 24 to rotate. Adjacent magnetic attraction rotating blocks 25 are connected by a commutation differential linkage structure. A first motor 20 is installed on the inner top wall of the hollow column 19. The output shaft of the first motor 20 is fixedly connected to the upper end of the uppermost magnetic attraction rotating block 25. By extending the electric telescopic rod 8, the hollow column 19 can be driven to move upward, driving the filter screen plate 21 to move above the filter box 16, and then driving the filter screen plate 21 to rotate. By the action of centrifugal force, the impurities on the filter screen plate 21 can be thrown off the filter screen plate 21, and the thrown-off impurities are thrown into the interior of the impurity collection box 15, realizing self-cleaning of the filter screen plate 21; Interception mechanism, which is connected to the box cover 4. The interception mechanism includes a water collecting hopper 6. An interception grid 7 is arranged inside the water collecting hopper 6. The interception grid 7 can be taken out from the interior of the water collecting hopper 6, facilitating cleaning of the interception grid 7. A communication pipe 5 is connected to the side wall of the water collecting hopper 6. One end of the communication pipe 5 away from the water collecting hopper 6 is connected to the water guiding insertion tube 17; Biodegradation treatment mechanism, which is arranged inside the treatment tank 1 and used to perform biodegradation treatment on the filtered wastewater. A first connecting pipe 9 is connected to the bottom of the filter box 16. One end of the first connecting pipe 9 away from the filter box 16 penetrates through the top of the treatment tank 1 and is connected to the biodegradation treatment mechanism.

[0025] The biodegradation treatment mechanism includes a fixing plate 29 fixedly connected inside the treatment tank 1. A hollow fiber membrane bundle 30 is provided through the fixing plate 29. The hollow fiber membrane bundle 30 is a mature existing technology and is usually composed of thousands of slender hollow fiber filaments. The hollow fiber filaments are arranged in a curtain or bundle shape, providing a high specific surface area and greatly improving the filtration efficiency. Various fillers are added to the hollow fiber filaments for microorganisms to attach and grow, so that a membrane-like structure composed of organisms is formed on the fillers, enhancing the pollutant degradation ability. The hollow fiber membrane bundle 30 is rotatably connected to the fixing plate 29. A water collecting pipe 33 fixedly connected thereto is provided through the middle of the hollow fiber membrane bundle 30. A pressure storage and backwashing structure is provided on the side wall of the water collecting pipe 33 near the upper end. An aeration disc 31 is fixed at the lower end of the water collecting pipe 33. A gas supply driving structure connected to the hollow fiber membrane bundle 30 and the aeration disc 31 is provided at the upper end of the fixing plate 29. A second connecting pipe 42 is connected to the side wall of the water collecting pipe 33 through a second rotary joint 35. One end of the second connecting pipe 42 away from the second rotary joint 35 penetrates out of the treatment tank 1 and is connected to a water pump 10. The output end of the water pump 10 is connected to a water outlet pipe 11.

[0026] The commutation differential linkage structure includes a first gear 26 fixedly connected to the lower end of the magnetic attraction rotating block 25 above and a third gear 28 fixedly connected to the upper end of the magnetic attraction rotating block 25 below. A second gear 27 is meshed between the first gear 26 and the third gear 28. The second gear 27 is rotatably connected to the side wall of the hollow column 19. The diameter of the first gear 26 is larger than that of the third gear 28, so that the rotation speed of the lower magnetic attraction rotating block 25 is greater than that of the upper magnetic attraction rotating block 25, and the rotation speeds of the three filter plates 21 increase sequentially from top to bottom, realizing the differential effect of the filter plates 21.

[0027] Furthermore, first limiting rings 22 are provided on both the upper and lower sides of the rotating ring 24. The first limiting rings 22 are fixedly sleeved on the outer side wall of the hollow column 19. Second limiting rings 23 are provided on both the upper and lower sides of the magnetic attraction rotating block 25. The second limiting rings 23 are fixedly connected to the inner wall of the hollow column 19. The first limiting rings 22 can be used to limit and support the rotating ring 24, and the second limiting rings 23 can be used to limit and support the magnetic attraction rotating block 25.

[0028] The pressure storage and backwashing structure includes a mounting disc 34 fixedly sleeved on the side wall of the water collecting pipe 33. Two device cavities 44 are provided inside the mounting disc 34. The device cavities 44 are communicated with the inside of the water collecting pipe 33 through a ventilation pipe 48. A pressure storage and backwashing member is provided inside the device cavities 44. The pressure storage and backwashing member includes a sliding plug 46 slidably arranged inside the device cavity 44. A tension spring 47 is fixedly connected to the side wall of the sliding plug 46 close to the ventilation pipe 48. One end of the tension spring 47 away from the sliding plug 46 is fixedly connected to the inner wall of the device cavity 44. A magnetic ring 45 is fixed on the inner wall of the device cavity 44. The magnetic ring 45 is located on the side of the sliding plug 46 away from the tension spring 47.

[0029] The air supply driving structure includes a second motor 37 installed at the upper end of the fixed plate 29. The output shaft of the second motor 37 is fixedly connected with a crank 39. A fifth gear 38 is fixedly sleeved on the side wall of the crank 39. A fourth gear 36 meshing with the fifth gear 38 is fixedly sleeved on the side wall of the hollow fiber membrane bundle 30. One end of the crank 39 away from the second motor 37 is rotatably connected to the inner top wall of the processing tank 1. A connecting rod 40 is rotatably sleeved on the crank 39. A piston cylinder 41 is fixed on the inner top wall of the processing tank 1. A piston 43 is slidably arranged inside the piston cylinder 41. One end of the connecting rod 40 away from the crank 39 is rotatably connected to the piston 43. Air suction pipes 14 and air outlet pipes 13 are arranged on the side wall of the piston cylinder 41. Check valves are arranged inside the air suction pipes 14 and the air outlet pipes 13, so that air enters the inside of the piston cylinder 41 through the air suction pipes 14 and air exits the outside of the piston cylinder 41 through the air outlet pipes 13. The air outlet pipes 13 and the air suction pipes 14 penetrate through the processing tank 1. One end of the air outlet pipe 13 away from the piston cylinder 41 is connected to the lower end of the aeration disc 31 through a first rotary joint 32. When the piston cylinder 41 discharges air outward, the air is introduced into the aeration disc 31 through the air outlet pipe 13 and the first rotary joint 32 and then discharged.

[0030] When the present invention is in use, wastewater is added into the water collection hopper 6. The intercepting grille 7 can intercept larger sundries in the wastewater, thereby avoiding larger sundries from entering the equipment and preventing blockage and failure inside the equipment. Then the wastewater enters the water guiding insertion tube 17 through the connecting pipe 5. The wastewater is introduced into the filtering box 16 through the water guiding insertion tube 17. The first motor 20 is started to drive the magnetic attraction rotating block 25 to rotate. Due to the magnetic attraction between the magnetic attraction rotating block 25 and the rotating ring 24, the rotating ring 24 can be driven to rotate. The filter screen plate 21 is driven to rotate through the rotating ring 24. Adjacent magnetic attraction rotating blocks 25 are driven by the first gear 26, the second gear 27, and the third gear 28. Due to the direction-changing transmission of the second gear 27, the rotation directions of adjacent filter screen plates 21 are opposite. Moreover, the diameter of the first gear 26 is larger than that of the third gear 28, so that the rotation speeds of the three filter screen plates 21 increase sequentially from top to bottom, which can make the movement state of the wastewater better during filtration, thereby improving the filtration efficiency of the wastewater. Then the filtered wastewater enters the processing tank 1 through the first connecting pipe 9. The second motor 37 is started to drive the crank 39 to rotate, driving the fifth gear 38 to rotate. Since the fifth gear 38 meshes with the fourth gear 36, the hollow fiber membrane bundle 30 can be driven to rotate. When the crank 39 rotates, the piston 43 can be driven to reciprocate inside the piston cylinder 41. Then air is sucked into the piston cylinder 41 through the air suction pipe 14, and the air is pumped into the aeration disc 31 through the air outlet pipe 13. The wastewater is aerated through the aeration disc 31, and the hollow fiber membrane bundle 30 is used to purify the wastewater. The water pump 10 is started, and the purified water can be discharged through the water collection block 33, the second connecting pipe 42, and the water outlet pipe 11. When the hollow fiber membrane bundle 30 and the water collecting pipe 33 rotate, the water collecting pipe 33 can drive the mounting disc 34 to rotate. Under the action of centrifugal force, the sliding plug 46 moves outward, so that the sliding plug 46 adsorbs on the magnetic ring 45, and at the same time, the tension spring 47 is stretched; During the process of driving the hollow fiber membrane bundle 30 to rotate, the rotating turntable of the hollow fiber membrane bundle 30 rotates forward for a period of time and then switches to reverse for a period of time. By driving the hollow fiber membrane bundle 30 to rotate forward and backward, the turbulence effect of the wastewater can be improved, and then the treatment effect of the hollow fiber membrane bundle 30 on the wastewater can be improved. When the hollow fiber membrane bundle 30 switches between forward and reverse rotation, since the rotation speed of the hollow fiber membrane bundle 30 decreases, at the same time, the rotation speed of the mounting disc 34 decreases, and thus the centrifugal force received by the sliding plug 46 decreases. As the centrifugal force received by the sliding plug 46 gradually decreases, until the pulling force of the tension spring 47 breaks through the magnetic attraction force between the sliding plug 46 and the magnetic ring 45, the tension spring 47 pulls the sliding plug 46 away from the magnetic ring 45, and the sliding plug 46 moves at a high speed in the device cavity 44, and then presses the gas in the device cavity 44 into the water collecting pipe 33 to perform a high-pressure backwash on the hollow fiber membrane bundle 30, so that sludge is not easily attached to the membrane filaments of the hollow fiber membrane bundle 30, improving the anti-fouling ability and further maintaining the good treatment ability of the hollow fiber membrane bundle 30.

[0031] A method for treating wastewater of a garbage truck uses a wastewater treatment device for a garbage truck. The method includes the following steps: S1. Coarse interception of wastewater. Use the interception mechanism to intercept larger impurities in the wastewater; S2. Fine filtration of wastewater. The intercepted wastewater passes through the connecting pipe 5 into the filter box 16, and the filter mechanism is used to perform fine filtration treatment on the wastewater; S3. Biodegradation treatment. The filtered wastewater enters the treatment tank 1 through the first connecting pipe 9, and the biodegradation treatment mechanism is used to perform biodegradation treatment on the wastewater.

[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A waste collection vehicle waste water treatment device, comprising a treatment tank (1), characterized in that, Further included are: A filter box (16), a fixing rod (2) is fixed at the bottom of the filter box (16), the lower end of the fixing rod (2) is fixed at the upper end of the treatment box (1), a collection box (3) is fixedly sleeved outside the filter box (16), a box cover (4) is connected to the upper end of the collection box (3), and a water guiding insertion tube (17) fixedly connected to the box cover (4) is provided through the box cover (4); A filtering mechanism, which is arranged inside the filter box (16) and is used for filtering wastewater; An intercepting mechanism, which is connected to the box cover (4); A biodegradation treatment mechanism, which is arranged inside the treatment box (1) and is used for biodegrading the filtered wastewater. A first connecting pipe (9) is connected to the bottom of the filter box (16), and one end of the first connecting pipe (9) away from the filter box (16) penetrates through the top of the treatment box (1) and is connected to the biodegradation treatment mechanism.

2. The wastewater treatment device for a garbage truck according to claim 1, wherein, The intercepting mechanism includes a water collecting hopper (6), an intercepting grid (7) is arranged inside the water collecting hopper (6), a communicating pipe (5) is connected to the side wall of the water collecting hopper (6), and one end of the communicating pipe (5) away from the water collecting hopper (6) is connected to the water guiding insertion tube (17).

3. A wastewater treatment device for a garbage truck according to claim 1, characterized in that, The filtering mechanism includes a hollow column (19) arranged inside the filter box (16), an electric telescopic rod (8) is installed at the bottom of the filter box (16), the telescopic end of the electric telescopic rod (8) penetrates through the filter box (16) and is fixed at the lower end of the hollow column (19), a cover plate (18) matching with the filter box (16) is fixedly sleeved on the side wall of the hollow column (19) near the upper end, three rotating rings (24) arranged vertically are rotatably sleeved on the outer side wall of the hollow column (19), a filter screen plate (21) is fixedly sleeved on the outer side wall of each rotating ring (24), three magnetic attraction rotating blocks (25) matching with the rotating rings (24) are arranged vertically inside the hollow column (19), adjacent magnetic attraction rotating blocks (25) are connected through a commutation differential linkage structure, and a first motor (20) is installed on the inner top wall of the hollow column (19), and the output shaft of the first motor (20) is fixedly connected to the upper end of the uppermost magnetic attraction rotating block (25).

4. The wastewater treatment equipment for a garbage truck according to claim 1, characterized in that, The biodegradation treatment mechanism includes a fixing plate (29) fixedly connected inside the treatment tank (1). A hollow fiber membrane bundle (30) is arranged through the fixing plate (29). The hollow fiber membrane bundle (30) is rotatably connected to the fixing plate (29). A water collecting pipe (33) fixedly connected thereto is arranged through the middle of the hollow fiber membrane bundle (30). A pressure accumulation and back-blowing structure is arranged on the side wall of the water collecting pipe (33) near the upper end. An aeration disc (31) is fixed at the lower end of the water collecting pipe (33). A gas supply driving structure connected to the hollow fiber membrane bundle (30) and the aeration disc (31) is arranged at the upper end of the fixing plate (29). A second connecting pipe (42) is connected to the side wall of the water collecting pipe (33) through a second rotary joint (35). One end of the second connecting pipe (42) far from the second rotary joint (35) penetrates out of the treatment tank (1) and is connected to a water pump (10). The output end of the water pump (10) is connected to a water outlet pipe (11).

5. The wastewater treatment device for a garbage truck according to claim 3, wherein, The commutation differential linkage structure includes a first gear (26) fixedly connected to the lower end of the magnetic attraction rotating block (25) above and a third gear (28) fixedly connected to the upper end of the magnetic attraction rotating block (25) below. A second gear (27) is meshed between the first gear (26) and the third gear (28). The second gear (27) is rotatably connected to the side wall of the hollow column (19). The wheel diameter of the first gear (26) is larger than that of the third gear (28).

6. The wastewater treatment device for a garbage truck according to claim 3, characterized in that, First limiting rings (22) are arranged on both the upper and lower sides of the rotating ring (24). The first limiting rings (22) are fixedly sleeved on the outer side wall of the hollow column (19). Second limiting rings (23) are arranged on both the upper and lower sides of the magnetic attraction rotating block (25). The second limiting rings (23) are fixedly connected to the inner wall of the hollow column (19).

7. The wastewater treatment device for a garbage truck according to claim 4, characterized in that, The pressure accumulation and back-blowing structure includes a mounting disc (34) fixedly sleeved on the side wall of the water collecting pipe (33). Two device cavities (44) are arranged inside the mounting disc (34). The device cavities (44) are communicated with the inside of the water collecting pipe (33) through a ventilation pipe (48). A pressure accumulation and back-blowing component is arranged inside the device cavity (44). The pressure accumulation and back-blowing component includes a sliding plug (46) slidably arranged inside the device cavity (44). A tension spring (47) is fixedly connected to the side wall of the sliding plug (46) close to the ventilation pipe (48). One end of the tension spring (47) far from the sliding plug (46) is fixedly connected to the inner wall of the device cavity (44). A magnetic ring (45) is fixed on the inner wall of the device cavity (44). The magnetic ring (45) is located on the side of the sliding plug (46) far from the tension spring (47).

8. A wastewater treatment device for a garbage truck according to claim 4, characterized in that The air supply driving structure includes a second motor (37) installed at the upper end of the fixing plate (29). The output shaft of the second motor (37) is fixedly connected with a crank (39). A fifth gear (38) is fixedly sleeved on the side wall of the crank (39). A fourth gear (36) meshing with the fifth gear (38) is fixedly sleeved on the side wall of the hollow fiber membrane bundle (30). One end of the crank (39) away from the second motor (37) is rotatably connected to the inner top wall of the treatment tank (1). A connecting rod (40) is rotatably sleeved on the crank (39). A piston cylinder (41) is fixed on the inner top wall of the treatment tank (1). A piston (43) is slidably arranged inside the piston cylinder (41). One end of the connecting rod (40) away from the crank (39) is rotatably connected to the piston (43). An air suction pipe (14) and an air outlet pipe (13) are arranged on the side wall of the piston cylinder (41). The air outlet pipe (13) and the air suction pipe (14) penetrate through the treatment tank (1). One end of the air outlet pipe (13) away from the piston cylinder (41) is connected to the lower end of the aeration disc (31) through a first rotary joint (32).

9. The wastewater treatment equipment for a garbage truck according to claim 1, characterized in that, A sewage discharge pipe (12) is connected to the lower part of the side wall of the treatment tank (1). A debris collection box (15) is arranged inside the collection box (3). The debris collection box (15) is located outside the filter box (16).

10. A method for treating wastewater of a garbage truck, characterized in that, Using the waste water treatment equipment for garbage trucks according to any one of claims 1-9, the method includes the following steps: S1. Coarse interception of waste water. Use the interception mechanism to intercept larger debris in the waste water. S2. Fine filtration of waste water. The waste water after interception treatment passes through the connecting pipe (5) into the filter box (16), and use the filtering mechanism to conduct fine filtration treatment on the waste water. S3. Biodegradation treatment. The waste water after filtration enters the inside of the treatment tank (1) through the first connecting pipe (9), and use the biodegradation treatment mechanism to conduct biodegradation treatment on the waste water.

Images