Rail transit sewage comprehensive treatment and recycling system

Abstract

The invention belongs to the technical field of sewage treatment, and particularly discloses a rail transit sewage comprehensive treatment and recycling system which comprises a filtering tank, a tank cover is arranged at the top of the filtering tank, a sewage pipe is arranged on one side of the top of the tank cover, a water inlet pipe is connected to one side of the sewage pipe and located on the top of the tank cover, and a drainage pipe is arranged at the bottom of the filtering tank. A backwashing structure is arranged between the water inlet pipe and the sewage pipe and located on one side of the filtering tank; one end of the water inlet pipe penetrates through the tank cover, extends to the top of the filtering tank and is fixedly provided with a water distributor. A mounting block and a stirring rod rotate in opposite directions, so that a walnut shell filter material in the mounting block can be fully stirred, the walnut shell filter material can be uniformly overturned under the action of a flow guide block, impurities and oil stains are prevented from being condensed on the surface of the walnut shell filter material, and the cleaning effect is improved along with discharge of cleaning water. The phenomena of material leakage and blockage of a circulation loop are not easy to cause, so that the overall filtering speed and filtering effect of the sewage are convenient to improve.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and in particular relates to a rail transit sewage comprehensive treatment and reuse system. Background Art

[0002] The wastewater generated by the rail transit industry is mainly domestic sewage and wastewater containing oil and detergent, which has caused the diversity and complexity of sewage pollutants to continue to increase. A single sewage treatment process technology can no longer remove pollutants in a broad spectrum and efficiently. Through the use of biological treatment, physical filtration and chemical enhancement technologies in comprehensive sewage treatment equipment, suspended solids, heavy metals and harmful substances in wastewater can be effectively removed to ensure that the water quality meets the discharge standards. The reuse system is a system used to treat and reuse sewage generated in rail transit. The system mainly includes the following parts: domestic sewage regulating tank, aeration tank, oily wastewater regulating tank, air flotation machine, walnut shell filter, sludge concentration filter press integrated machine. The system also uses programmable controllers and intelligent instruments to realize automatic control of electrical equipment to ensure the continuous safe and stable operation of the entire sewage treatment system.

[0003] However, during its use, the walnut shells in the walnut shell filter absorb impurities and oil in the sewage, and then the walnut shells are rinsed clean by backwashing and filtered again. As the cleaning water is discharged, it is easy to cause material leakage and blockage of the circulation loop. Moreover, when the filter material inside the walnut filter is not turned over and stirred loosely and evenly enough, impurities and oil condense on the surface of the walnut shell filter material, thereby affecting the overall filtration speed and filtration effect of the sewage. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions: A rail transit sewage comprehensive treatment and reuse system comprises a filter tank, a tank cover is arranged on the top of the filter tank, a sewage pipe is arranged on one side of the top of the tank cover, a water inlet pipe is connected to one side of the sewage pipe and located at the top of the tank cover, a drain pipe is arranged at the bottom of the filter tank, a backwash structure is arranged between the water inlet pipe and the sewage pipe and located at one side of the filter tank, one end of the water inlet pipe passes through the tank cover and extends to the top of the filter tank where a water distributor is fixedly installed, a mounting block is arranged inside the filter tank, an air inlet hole is opened at the bottom of the mounting block, a distribution pipe is arranged inside the air inlet hole, the distribution pipe is made of elastic and telescopic material, an air inlet pipe is arranged at the bottom of the distribution pipe, one end of the air inlet pipe passes through one side of the filter tank, a backwash water distribution sieve plate is arranged at the bottom of the air inlet pipe, a connection is fixedly installed at the top of the distribution pipe and located at the bottom of the mounting block A plate, grooves are provided inside both sides of the filter tank, a movable structure is provided inside the groove, one end of the movable structure is connected to the connecting plate, a filter plate is fixedly installed on the top of the mounting block, a first rotating rod is fixedly installed on one side of the mounting block, a first motor is fixedly installed on one end of the first rotating rod, a second rotating rod is fixedly installed on the other side of the mounting block, a first movable groove is provided on one side of the second rotating rod and located on the inner wall of the filter tank, one side of the second rotating rod is rotatably connected to the first movable groove, a mounting groove is provided in the middle of the second rotating rod, a second motor is fixedly installed inside the mounting groove, a rotating shaft is transmission-connected at the output end of the second motor, one end of the rotating shaft passes through one side of the mounting block and extends to the inside of the mounting block, and is rotatably connected to the inner wall of the mounting block, and a stirring rod is fixedly installed on the outside of the rotating shaft.

[0005] As a preferred embodiment of the above technical solution, a viewing mirror is provided at one end of the filter tank near the air inlet pipe, a support leg is fixedly installed at the bottom of the filter tank, a second movable groove is opened on the side of the filter tank near the first rotating rod, the second movable groove runs through one side of the filter tank, one end of the first rotating rod passes through the second movable groove and extends to the outside of the filter tank, a support plate is fixedly installed at the bottom of the second movable groove and on the outer wall of the filter tank, and the first motor is fixedly installed on the support plate.

[0006] As a preferred embodiment of the above technical solution, two fixed grooves are opened at the top of the first movable groove and the second movable groove and located on the inner wall of the filter tank. The two ends of the two fixed grooves pass through one side of the mounting block and one side of the filter tank respectively. A storage box is fixedly installed on one side of the two fixed grooves and located on the outer wall of the filter tank. The storage box is symmetrically arranged around the center of the filter tank.

[0007] As a preferred embodiment of the above technical solution, a collecting chamber is provided on the top of the storage box, and a cleaning liquid chamber is provided on the bottom thereof, a collecting tube is fixedly installed on one side of the collecting chamber, a collecting pump is fixedly installed on one side of the collecting tube, a fixed tube is fixedly installed on one side of the cleaning liquid tank, a control valve is provided at one end of the fixed tube, the collecting tube and the fixed tube are respectively provided corresponding to the two fixed grooves, one end of the collecting tube is located at the top of the filter plate, and the other end of the collecting tube is located at the bottom of the filter plate.

[0008] As a preferred embodiment of the above technical solution, the side of the stirring rod away from the rotating axis is arc-shaped, and a compression spring is fixedly installed on the arc-shaped side of the stirring rod, and a pushing block is fixedly installed on one end of the compression spring, and the fixed block, compression spring and pushing block are distributed in a linear array on the arc-shaped side of the stirring rod.

[0009] As a preferred embodiment of the above technical solution, two guide blocks are provided on the inner wall at the bottom of the mounting block. One side of the two guide blocks is arc-shaped. The two guide blocks are symmetrically arranged around the center of the mounting block. Walnut shell filter material is arranged inside the mounting block. Water inlet holes are opened on the outer wall of the mounting block. The diameter of the water inlet holes is smaller than the diameter of the walnut shell filter material.

[0010] As a preferred embodiment of the above technical solution, the movable structure includes a movable plate, one side of the movable plate is fixedly installed with the connecting plate, an electric push rod is fixedly installed at the bottom of the connecting plate, first racks are fixedly installed on both sides of the electric push rod, a gear is meshed on one side of the bottom end of the first rack, one end of the movable rod is rotatably connected to the inner wall of the groove, a movable rod is fixedly installed in the middle of the gear, a second rack is meshed on one side of the gear, a connecting block is fixedly installed on the top of the second rack, and an electric telescopic plate is fixedly installed on the top of the connecting block.

[0011] As a preferred embodiment of the above technical solution, a movable groove is provided at the top of the groove, a telescopic plate is fixedly installed on the side of the groove close to the air intake pipe, the bottom of the telescopic plate is fixedly installed on the inner wall of the bottom of the groove, a movable opening is provided at the top of the telescopic plate, one end of the connecting block extends through the movable opening to the side of the telescopic plate away from the groove, the air intake pipe passes through the right telescopic plate, and the electric push rod is located on one side of the air intake pipe.

[0012] As a preferred embodiment of the above technical solution, two movable blocks are fixedly installed on one side of the telescopic end of the telescopic plate, a sealing plate is fixedly installed on the top of the movable block, a movable opening is opened on one side of the movable groove and on the inner wall of the filter tank, and the sealing plate is located at the movable opening.

[0013] The beneficial effects of the present invention are: (1) The present invention rotates the mounting block in the opposite direction to the stirring rod, so that the walnut shell filter material inside the mounting block can be fully stirred, and the walnut shell filter material can be evenly turned under the action of the guide block, thereby preventing impurities and oil from condensing on the surface of the walnut shell filter material. With the discharge of the cleaning water, it is not easy to cause the material to escape and the circulation loop to be blocked, thereby facilitating the improvement of the overall filtration speed and filtration effect of the sewage; (2) After the gas is introduced into the interior of the mounting block through the air inlet pipe and the distribution pipe, the present invention drives the distribution pipe to move downward through the movable structure inside the mounting block, and at the same time, separates the distribution pipe from the mounting block, so that it is convenient for the mounting block to drive the internal walnut shell filter material to rotate, and the walnut shell is backwashed by water to improve the cleaning effect of the walnut shell filter material. At the same time, the electric telescopic plate moves to the bottom of the mounting block, and the electric telescopic plate is extended to support the rotating mounting block, thereby improving the stability of the mounting block after rotation, thereby facilitating improving the effect of the cleaned walnut shell filter material on sewage treatment, and further improving the effect of subsequent sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment; Figure 2 Shown is a cross-sectional view of an embodiment filter tank; Figure 3 What is shown is the internal structure diagram of the filter tank of the embodiment; Figure 4 Shown is a structural diagram of the mounting block, the air intake pipe and the moving structure of the embodiment; Figure 5 Shown is a cross-sectional view of an embodiment mounting block; Figure 6 Shown is a diagram of the internal structure of the mounting block of the embodiment; Figure 7 The embodiment shown is Figure 6 A magnified image of point A; Figure 8 Shown is a structural diagram of an intake pipe, a distribution pipe and a moving structure of an embodiment; Fig. 9 Shown is a front view of an embodiment moving structure.

[0015] In the figure: 1. filter tank; 2. sewage pipe; 3. water inlet pipe; 4. drainage pipe; 5. water distributor; 6. mounting block; 7. distribution pipe; 8. air inlet pipe; 9. backwash water distribution screen plate; 10. connecting plate; 11. moving structure; 111. moving plate; 112. electric push rod; 113. first rack; 114. gear; 115. second rack; 116. connecting block; 117. electric telescopic plate; 12. filter plate; 13. first rotating rod; 14. first motor; 15. second rotating rod; 16. second motor; 17. rotating shaft; 18. stirring rod; 19. backwash structure; 23. storage box; 24. collecting pipe; 25. fixed pipe; 26. fixed block; 27. compression spring; 28. pushing block; 29. ​​guide block; 30. telescopic plate; 31. movable block; 32. sealing plate. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0017] The present invention provides a rail transit sewage comprehensive treatment and reuse system, such as Figures 1 to 6 As shown, it includes a filter tank 1, a tank cover is provided on the top of the filter tank 1, a sewage pipe 2 is provided on one side of the top of the tank cover, a water inlet pipe 3 is connected to one side of the sewage pipe 2 and located at the top of the tank cover, a drain pipe 4 is provided at the bottom of the filter tank 1, a backwash structure 19 is provided between the water inlet pipe 3 and the sewage pipe 2 and located on one side of the filter tank 1, one end of the water inlet pipe 3 passes through the tank cover and extends to the top of the filter tank 1 where a water distributor 5 is fixedly installed, a mounting block 6 is provided inside the filter tank 1, an air inlet hole is provided at the bottom of the mounting block 6, a distribution pipe 7 is provided inside the air inlet hole, the distribution pipe 7 is made of elastic and telescopic material, an air inlet pipe 8 is provided at the bottom of the distribution pipe 7, one end of the air inlet pipe 8 passes through one side of the filter tank 1, a backwash water distribution sieve plate 9 is provided at the bottom of the air inlet pipe 8, a connecting plate 10 is fixedly installed at the top of the distribution pipe 7 and located at the bottom of the mounting block 6, grooves are provided inside both sides of the filter tank 1, and the grooves are provided inside A movable structure 11 is provided in the part, one end of the movable structure 11 is connected to the connecting plate 10, a filter plate 12 is fixedly installed on the top of the mounting block 6, a filter hole is provided at the bottom of the mounting block 6, a first rotating rod 13 is fixedly installed on one side of the mounting block 6, a first motor 14 is fixedly installed on one end of the first rotating rod 13, a second rotating rod 15 is fixedly installed on the other side of the mounting block 6, a first movable groove is provided on one side of the second rotating rod 15 and located on the inner wall of the filter tank 1, one side of the second rotating rod 15 is rotatably connected to the first movable groove, a mounting groove is provided in the middle of the second rotating rod 15, a second motor 16 is fixedly installed inside the mounting groove, and a rotating shaft 17 is transmission-connected at the output end of the second motor 16, one end of the rotating shaft 17 passes through one side of the mounting block 6 and extends to the inside of the mounting block 6, and it is rotatably connected to the inner wall of the mounting block 6, and a stirring rod 18 is fixedly installed on the outer side of the rotating shaft 17.

[0018] The sewage is transported into the interior of the filter tank 1 through the sewage pipe 2, and the large particles of impurities in the sewage are first filtered out through the filter plate 12 on the top of the mounting block 6, and then enters the interior of the mounting block 6, and is filtered through the walnut shell filter material, and then the filtered water is transported to the bottom of the filter tank 1 through the filter hole at the bottom of the mounting block 6, and the purified water is discharged through the drain pipe 4. When the sewage treatment is completed, when the walnut shell filter material needs to be cleaned, gas is first introduced into the interior of the mounting block 6 through the air intake pipe 8 and the distribution pipe 7. The gas is introduced into the interior of the walnut shell filter material, and small bubbles are formed on the surface of the walnut shell filter material, which adheres to oil and impurities and is easier to separate from the surface of the walnut shell filter material, and the walnut shell filter material is thoroughly cleaned. Then the moving structure 11 is started to drive the connecting plate 10 to move downward. Since the distribution pipe 7 is made of elastic and telescopic material, when the connecting plate 10 moves downward, it drives the distribution pipe 7 to move downward and contract, so that the distribution pipe 7 is separated from the air intake pipe 8 at the bottom of the mounting block 6, and then the first electric The machine 14 drives the first rotating rod 13 to rotate, so that the first rotating rod 13 drives the mounting block 6 and the second rotating rod 15 to rotate, and the second rotating rod 15 rotates along the inner wall of the first movable groove, and at the same time starts the second motor 16 to drive the rotating shaft 17 and the stirring rod 18 to rotate, so that the mounting block 6 and the stirring rod 18 rotate in opposite directions at the same time, so that the walnut shell filter material inside the mounting block 6 is fully contacted, to prevent the walnut shell filter material from being unevenly stirred, to prevent impurities and oil from condensing on the surface of the walnut shell filter material, and then through the backwashing mechanism, water is introduced into the interior of the filter tank 1 from the drain pipe 4, and the backwashing water is filtered through the backwashing water distribution sieve plate 9 to improve the walnut shell filtering effect, and the backwashing water rinses the walnut shell filter material inside the rotating mounting block 6, and with the discharge of the cleaning water, the walnut shell filter material inside the mounting block 6 will not run away and the circulation loop will not be blocked, thereby facilitating the improvement of the overall filtration speed and filtration effect of the sewage.

[0019] like Figures 1 to 4 As shown, a viewing mirror is provided at one end of the filter tank 1 near the air inlet pipe 8, a supporting leg is fixedly installed at the bottom of the filter tank 1, a second movable groove is opened on the side of the filter tank 1 near the first rotating rod 13, the second movable groove runs through one side of the filter tank 1, one end of the first rotating rod 13 passes through the second movable groove and extends to the outside of the filter tank 1, a support plate is fixedly installed at the bottom of the second movable groove and on the outer wall of the filter tank 1, and the first motor 14 is fixedly installed with the support plate.

[0020] The sight glass on one side of the filter tank 1 is convenient for observing the situation inside the filter tank 1, and the support legs are convenient for supporting and fixing the filter tank 1, so as to improve the stability of the filter tank 1. The first rotating rod 13 is connected to the first motor 14 through the second movable groove, and the first motor 14 is conveniently installed and fixed through the support plate, so that the first motor 14 rotates to drive the first rotating rod 13 and the mounting block 6 to rotate, and the mounting block 6 drives the second rotating rod 15 to rotate along the first movable groove, so that the mounting block 6 remains stable when rotating, so that the walnut shell filter material inside the mounting block 6 can be turned over, so as to make the walnut shell filter material more comprehensive when flushing, and improve the effect of the walnut shell filter material being filtered again.

[0021] like Figure 2 As shown, two fixed grooves are provided on the top of the first movable groove and the second movable groove and located on the inner wall of the filter tank 1, and the two ends of the two fixed grooves pass through one side of the mounting block 6 and one side of the filter tank 1 respectively, and a storage box 23 is fixedly installed on one side of the two fixed grooves and located on the outer wall of the filter tank 1, and the storage box 23 is symmetrically arranged with the center of the filter tank 1, a collecting chamber is provided on the top of the storage box 23, and a cleaning liquid chamber is provided at the bottom thereof, a collecting pipe 24 is fixedly installed on one side of the collecting chamber, a collecting pump is fixedly installed on one side of the collecting pipe 24, a fixed pipe 25 is fixedly installed on one side of the cleaning liquid tank, a control valve is provided at one end of the fixed pipe 25, the collecting pipe 24 and the fixed pipe 25 are respectively arranged corresponding to the two fixed grooves, one end of the collecting pipe 24 is located at the top of the filter plate 12, and one end of the collecting pipe 24 is located at the bottom of the filter plate 12.

[0022] The collecting pipe 24 is conveniently connected to the fixing pipe 25 and the mounting block 6 through the fixing groove. By starting the collecting pump, the impurities filtered on the filter plate 12 are collected by the collecting pipe 24 to the collecting chamber inside the storage box 23 for collection, so as to prevent the impurities from accumulating on the filter plate 12 and affecting the sewage treatment effect, thereby facilitating the reduction of impurities inside the filter tank 1. By starting the control valve, the cleaning liquid inside the cleaning liquid chamber is conveniently transported from the fixing pipe 25 to the inside of the mounting block 6, thereby facilitating the improvement of the cleaning effect of the walnut shell filter material and further improving the sewage treatment effect.

[0023] like Figures 5 to 7 As shown, the side of the stirring rod 18 away from the rotating shaft 17 is arc-shaped, and a fixed block 26 is fixedly installed on the arc-shaped side of the stirring rod 18, a compression spring 27 is fixedly installed on one side of the fixed block 26, and a pushing block 28 is fixedly installed on one end of the compression spring 27. The fixed block 26, the compression spring 27 and the pushing block 28 are distributed in a linear array on the arc-shaped side of the stirring rod 18.

[0024] The stirring rod 18 on one side of the arc is used to flip and stir the walnut shell filter material. When the stirring rod 18 rotates, it drives the fixed block 26, the compression spring 27 and the pushing block 28 to rotate. When the stirring rod 18 rotates to the bottom of the filter plate 12, the filter plate 12 pushes the block 28 to squeeze, and the compression spring 27 pushes the pushing block 28 to move upward, vibrating the filter plate 12, so that impurities on the filter plate 12 fall off. The fixed block 26, the compression spring 27 and the pushing block 28 distributed in a linear array are convenient to increase the speed of impurities falling on the filter plate 12, reduce the accumulation of impurities inside the filter tank 1, and improve the effect of sewage treatment.

[0025] like Figure 5 to Figure 6 As shown, two guide blocks 29 are provided on the inner wall at the bottom of the mounting block 6. One side of the two guide blocks 29 is arc-shaped. The two guide blocks 29 are symmetrically arranged around the center of the mounting block 6. Walnut shell filter material is arranged inside the mounting block 6. A water inlet hole is opened on the outer wall of the mounting block 6. The diameter of the water inlet hole is smaller than the diameter of the walnut shell filter material.

[0026] The arc surface on one side of the guide block 29 makes it easy for the walnut shell filter material to flip quickly when the mounting block 6 rotates, making the flipping more uniform. The backwash structure 19 can flush water into the interior of the mounting block 6 through the water inlet hole to flush the walnut shell filter material. Since the diameter of the water inlet hole is smaller than the diameter of the walnut shell filter material, the walnut shell filter material is prevented from running away during flushing, thereby blocking the water pipe and affecting the flushing effect of the backwash structure 19.

[0027] like Figures 8 to 9 As shown, the movable structure 11 includes a movable plate 111, one side of the movable plate 111 is fixedly installed with the connecting plate 10, an electric push rod 112 is fixedly installed at the bottom of the connecting plate 10, first racks 113 are fixedly installed on both sides of the electric push rod 112, a gear 114 is meshed on one side of the bottom end of the first rack 113, a movable rod is fixedly installed in the middle of the gear 114, one end of the movable rod is rotatably connected to the inner wall of the groove, a second rack 115 is meshed on one side of the gear 114, a connecting block 116 is fixedly installed on the top of the second rack 115, and an electric telescopic plate 117 is fixedly installed on the top of the connecting block 116.

[0028] The electric push rod 112 drives the movable plate 111 to move downward, so that the movable plate 111 drives the connecting plate 10 to move downward, and when the movable plate 111 moves downward, the first rack 113 moves downward, and the gear 114 drives the movable rod to rotate along the inner wall of the groove, so that the second rack 115 drives the connecting block 116 and the electric telescopic plate 117 to move upward. When the movable plate 111 drives the connecting plate 10 to move downward, the connecting plate 10 and the distribution pipe 7 move downward and shrink, thereby separating the mounting block 6 from the distribution pipe 7, thereby facilitating the rotation of the mounting block 6, facilitating the walnut shell filter material inside the mounting block 6 to be fully turned over, facilitating a cleaner flushing, and preventing impurities and oil stains from condensing on the surface of the walnut shell filter material, thereby affecting the effect of subsequent sewage treatment.

[0029] like Figure 2 , Figure 4 , Figure 8 , Fig. 9 As shown, a movable groove is opened at the top of the groove, a telescopic plate 30 is fixedly installed on the side of the groove close to the air inlet pipe 8, the bottom of the telescopic plate 30 is fixedly installed to the inner wall of the bottom of the groove, the top of the telescopic plate 30 and the bottom of the movable plate 111 are fixedly installed, the air inlet pipe 8 passes through the right telescopic plate 30, the electric push rod 112 is located on one side of the air inlet pipe 8, two movable blocks 31 are fixedly installed on one side of the telescopic end of the telescopic plate 30, a sealing plate 32 is fixedly installed on the top of the movable block 31, a movable opening is opened on one side of the movable groove and on one side of the inner wall of the filter tank 1, and the sealing plate 32 is located at the movable opening.

[0030] The telescopic plate 30 is used to keep the interior of the groove sealed, and the sealing plate 32 is used to seal the movable opening to prevent impurities from falling into the groove and the movable groove during sewage treatment. The long-term accumulation is difficult to clean and affects the movement of the internal structure. When the electric push rod 112 drives the movable plate 111 to move downward, the movable plate 111 drives the telescopic plate 30 to retract, and the telescopic plate 30 drives the movable block 31 and the sealing plate 32 to move downward, so that the movable opening is exposed. The electric push rod 112 drives the movable plate 111 downward and the first rack 113 moves downward. At the same time, the gear 114 drives the movable rod to rotate along the inner wall of the groove, so that the second rack 115 drives the connecting block 116 and the electric telescopic plate 117 to move upward, and the electric telescopic plate 117 moves to the movable opening. When the mounting block 6 stops rotating, the electric telescopic plate 117 is started to extend from the movable opening to the two ends of the bottom of the mounting block 6 to support and fix the mounting block 6, so that the rotating mounting block 6 remains stable, thereby facilitating use.

[0031] Working principle: When in use, the sewage is transported into the filter tank 1 through the sewage pipe 2, and the large particles of impurities in the sewage are first filtered out through the filter plate 12 on the top of the mounting block 6, and then enters the mounting block 6, and is filtered through the walnut shell filter material, and then the filtered water is transported to the bottom of the filter tank 1 through the filter hole at the bottom of the mounting block 6, and the purified water is discharged through the drain pipe 4. When the sewage treatment is completed, when the walnut shell filter material needs to be cleaned, the impurities filtered on the filter plate 12 are collected by the collection pipe 24 into the storage box 23 by starting the collection pump. The collecting chamber of the part is used for collecting, and the gas is introduced into the interior of the mounting block 6 by using the air inlet pipe 8 and the distribution pipe 7. The gas is introduced into the interior of the walnut shell filter material, and small bubbles are formed on the surface of the walnut shell filter material, which adheres to oil and impurities. Then, the control valve is started to facilitate the cleaning liquid in the cleaning liquid chamber to be transported from the fixed pipe 25 to the interior of the mounting block 6, and the electric push rod 112 is started to drive the moving plate 111 to move downward, so that the moving plate 111 drives the connecting plate 10 to move downward, and when the moving plate 111 moves downward, the first rack 113 moves downward, and the gear 114 drives the movable rod along The inner wall of the groove rotates, so that the second rack 115 drives the connecting block 116 and the electric telescopic plate 30 to move upward. When the movable plate 111 drives the connecting plate 10 to move downward, the connecting plate 10 and the distribution pipe 7 move downward and shrink, thereby separating the mounting block 6 from the distribution pipe 7, thereby facilitating the rotation of the mounting block 6. Then, the first motor 14 is started to drive the first rotating rod 13 to rotate, so that the first rotating rod 13 drives the mounting block 6 and the second rotating rod 15 to rotate, and the second rotating rod 15 rotates along the inner wall of the first movable groove, and at the same time, the second motor 16 is started to drive the rotating shaft 1 7 rotates with the stirring rod 18, so that the mounting block 6 and the stirring rod 18 rotate in opposite directions at the same time. The arc surface on one side of the guide block 29 makes it easy for the walnut shell filter material to be quickly turned over when the mounting block 6 rotates, so that the walnut shell filter material inside the mounting block 6 is fully contacted to prevent impurities and oil from condensing on the surface of the walnut shell filter material. Then, water is introduced into the interior of the filter tank 1 from the drain pipe 4 through the backwashing mechanism, and the flushing water is filtered through the backwashing water distribution screen plate 9, and the backwashing water can flush the walnut shell filter material inside the rotating mounting block 6.

[0032] When the rotating shaft 17 drives the stirring rod 18 to rotate, it also drives the fixed block 26, the compression spring 27 and the pushing block 28 to rotate. When the stirring rod 18 rotates to the bottom of the filter plate 12, the filter plate 12 pushes the block 28 to squeeze, and the compression spring 27 pushes the pushing block 28 to move upward, vibrating the filter plate 12, so that impurities on the filter plate 12 fall off. The fixed block 26, the compression spring 27 and the pushing block 28 distributed in a linear array facilitate the impurity falling speed on the filter plate 12 to increase the accumulation of impurities inside the filter tank 1, thereby reducing the accumulation of impurities inside the filter tank 1, thereby improving the sewage treatment effect.

[0033] When the electric push rod 112 drives the moving plate 111 to move downward, the moving plate 111 drives the telescopic plate 30 to shrink, and the telescopic plate 30 drives the movable block 31 and the sealing plate 32 to move downward, so that the movable opening is exposed, and the electric push rod 112 drives the moving plate 111 downward and the first rack 113 to move downward. At the same time, the gear 114 drives the movable rod to rotate along the inner wall of the groove, so that the second rack 115 drives the connecting block 116 and the electric telescopic plate 117 to move upward, and the electric telescopic plate 117 moves to the movable opening. When the mounting block 6 stops rotating, the electric telescopic plate 117 is started to extend from the movable opening to the two ends of the bottom of the mounting block 6 to support and fix the mounting block 6, so that the rotating mounting block 6 remains stable, thereby facilitating use.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A rail transit wastewater comprehensive treatment and reuse system, comprising a filter tank (1), characterized in that: The filter tank (1) is provided with a tank cover on the top, a sewage pipe (2) is provided on one side of the tank cover, a water inlet pipe (3) is connected to one side of the sewage pipe (2) and located at the top of the tank cover, a drainage pipe (4) is provided at the bottom of the filter tank (1), a backwashing structure (19) is provided between the water inlet pipe (3) and the sewage pipe (2) and located on one side of the filter tank (1), one end of the water inlet pipe (3) passes through the tank cover and extends to the top of the filter tank (1) where a water distributor (5) is fixedly installed, and a water distributor (5) is provided inside the filter tank (1). A mounting block (6) is provided, an air inlet hole is provided at the bottom of the mounting block (6), a distribution pipe (7) is provided inside the air inlet hole, the distribution pipe (7) is made of elastic and telescopic material, an air inlet pipe (8) is provided at the bottom of the distribution pipe (7), one end of the air inlet pipe (8) passes through one side of the filter tank (1), a backwash water distribution screen plate (9) is provided at the bottom of the air inlet pipe (8), a connecting plate (10) is fixedly installed at the top of the distribution pipe (7) and located at the bottom of the mounting block (6), and both sides of the filter tank (1) are provided with a connecting plate (10) fixedly installed at the top of the distribution pipe (7) and located at the bottom of the mounting block (6). A groove is provided, wherein a movable structure (11) is provided inside the groove, one end of the movable structure (11) is connected to the connecting plate (10), a filter plate (12) is fixedly mounted on the top of the mounting block (6), a first rotating rod (13) is fixedly mounted on one side of the mounting block (6), a first motor (14) is fixedly mounted on one end of the first rotating rod (13), a second rotating rod (15) is fixedly mounted on the other side of the mounting block (6), a first movable groove is provided on one side of the second rotating rod (15) and located on the inner wall of the filter tank (1), one side of the second rotating rod (15) is rotatably connected to the first movable groove, a mounting groove is provided in the middle of the second rotating rod (15), a second motor (16) is fixedly mounted inside the mounting groove, an output end of the second motor (16) is transmission-connected to a rotating shaft (17), one end of the rotating shaft (17) passes through one side of the mounting block (6) and extends to the inside of the mounting block (6), and is rotatably connected to the inner wall of the mounting block (6), and a stirring rod (18) is fixedly mounted on the outside of the rotating shaft (17).

2. The rail transit sewage comprehensive treatment and reuse system according to claim 1 is characterized in that: The filter tank (1) is provided with a sight glass at one end close to the air inlet pipe (8), a support leg is fixedly mounted at the bottom of the filter tank (1), a second movable groove is opened at one side of the filter tank (1) close to the first rotating rod (13), the second movable groove penetrates one side of the filter tank (1), one end of the first rotating rod (13) passes through the second movable groove and extends to the outside of the filter tank (1), a support plate is fixedly mounted at the bottom of the second movable groove and located on the outer wall of the filter tank (1), and the first motor (14) is fixedly mounted to the support plate.

3. The rail transit sewage comprehensive treatment and reuse system according to claim 2 is characterized in that: Two fixed grooves are provided at the top of the first movable groove and the second movable groove and are located on the inner wall of the filter tank (1). The two ends of the two fixed grooves pass through one side of the mounting block (6) and one side of the filter tank (1) respectively. A storage box (23) is fixedly installed on one side of the two fixed grooves and located on the outer wall of the filter tank (1). The storage box (23) is symmetrically arranged with respect to the center of the filter tank (1).

4. The rail transit sewage comprehensive treatment and reuse system according to claim 3 is characterized in that: The storage box (23) has a collecting chamber at the top and a cleaning liquid chamber at the bottom. A collecting pipe (24) is fixedly mounted on one side of the collecting chamber. A collecting pump is fixedly mounted on one side of the collecting pipe (24). A fixing pipe (25) is fixedly mounted on one side of the cleaning liquid tank. A control valve is disposed at one end of the fixing pipe (25). The collecting pipe (24) and the fixing pipe (25) are disposed corresponding to two fixing grooves respectively. One end of the collecting pipe (24) is located at the top of the filter plate (12), and one end of the collecting pipe (24) is located at the bottom of the filter plate (12).

5. The rail transit sewage comprehensive treatment and reuse system according to claim 1 is characterized in that: The side of the stirring rod (18) away from the rotating shaft (17) is arc-shaped, and a fixed block (26) is fixedly mounted on the side of the arc of the stirring rod (18), a compression spring (27) is fixedly mounted on one side of the fixed block (26), and a push block (28) is fixedly mounted on one end of the compression spring (27), and the fixed block (26), the compression spring (27) and the push block (28) are distributed in a linear array on the arc-shaped side of the stirring rod (18).

6. The rail transit sewage comprehensive treatment and reuse system according to claim 1 is characterized in that: Two guide blocks (29) are arranged on the inner wall at the bottom of the mounting block (6), one side of the two guide blocks (29) is arc-shaped, and the two guide blocks (29) are symmetrically arranged around the center of the mounting block (6). Walnut shell filter material is arranged inside the mounting block (6), and water inlet holes are opened on the outer wall of the mounting block (6), and the diameter of the water inlet holes is smaller than the diameter of the walnut shell filter material.

7. The rail transit sewage comprehensive treatment and reuse system according to claim 1 is characterized in that: The movable structure (11) comprises a movable plate (111), one side of the movable plate (111) is fixedly mounted to the connecting plate (10), an electric push rod (112) is fixedly mounted on the bottom of the connecting plate (10), first racks (113) are fixedly mounted on both sides of the electric push rod (112), one side of the bottom end of the first rack (113) is meshed with a gear (114), one end of the movable rod is rotatably connected to the inner wall of the groove, a movable rod is fixedly mounted in the middle of the gear (114), one side of the gear (114) is meshed with a second rack (115), a connecting block (116) is fixedly mounted on the top of the second rack (115), and an electric telescopic plate (117) is fixedly mounted on the top of the connecting block (116).

8. The rail transit sewage comprehensive treatment and reuse system according to claim 7 is characterized in that: A movable groove is provided at the top of the groove, a telescopic plate (30) is fixedly mounted on the side of the groove close to the air intake pipe (8), the bottom of the telescopic plate (30) is fixedly mounted to the inner wall of the bottom of the groove, a movable opening is provided at the top of the telescopic plate (30), one end of the connecting block (116) passes through the movable opening and extends to the side of the telescopic plate (30) away from the groove, the air intake pipe (8) passes through the right telescopic plate (30), and the electric push rod (112) is located on one side of the air intake pipe (8).

9. The rail transit sewage comprehensive treatment and reuse system according to claim 8 is characterized in that: Two movable blocks (31) are fixedly mounted on one side of the telescopic end of the telescopic plate (30), a sealing plate (32) is fixedly mounted on the top of the movable block (31), a movable opening is provided on one side of the movable groove and on one side of the inner wall of the filter tank (1), and the sealing plate (32) is located at the movable opening.

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