Environment-friendly wastewater treatment device

Abstract

The invention discloses an environment-friendly wastewater treatment device, and relates to the technical field of wastewater treatment.The environment-friendly wastewater treatment device comprises a treatment box, an upper cover plate is fixedly mounted at the upper end of the treatment box, a lower cover plate is fixedly mounted at the lower end of the treatment box, and positioning bearings are mounted in the middles of the lower cover plate and the upper cover plate in an embedded mode; and the inner ring of the positioning bearing is fixedly connected with a transmission rod. According to the sewage treatment device, a transmission rod, a connecting rod and a stirring rod can be driven to rotate through a servo motor, so that the mixing efficiency of wastewater and a flocculating agent can be improved, and the wastewater treatment efficiency can be improved; and the lifting cleaning mechanism can drive the piston pumping mechanism to continuously pump and convey an external flocculating agent in the operation process, so that the overall structure linkage and the environmental protection performance of the environment-friendly wastewater treatment device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to an environmentally friendly wastewater treatment device. Background Art

[0002] The water discharged during residents' activities and runoff rainwater are collectively referred to as wastewater, which includes domestic wastewater, industrial wastewater, and other unused water such as initial rain runoff into drainage pipes. In order to make rational use of water resources, wastewater needs to be treated before use to achieve the purpose of environmental protection. The commonly used wastewater treatment method is to add flocculants to the wastewater, so that the suspended particles in the wastewater are aggregated into clumps, so as to realize the sewage treatment process in the subsequent sedimentation process. When flocculating the wastewater, a wastewater treatment device is required.

[0003] However, the existing wastewater treatment devices still have certain defects when in use; For example, a wastewater treatment device proposed in application number CN202322900370.8 includes a flocculant storage tank fixed above a reaction tank; a second regulating valve is installed on a liquid outlet pipe; under the action of a lifting pump, the sewage in the water inlet tank can be transported to multiple branch pipes, and under the action of a liquid pump, the flocculant can be transported to multiple elbows, and the flocculant can simultaneously enter the sewage in multiple branch pipes through the elbows. This design can make the flocculant and the flowing sewage merge quickly, which is conducive to the rapid reaction of the flocculant and the sewage, and improves the efficiency of sewage treatment; at the same time, the first regulating valve, the first flowmeter, the second regulating valve and the second flowmeter are set to facilitate the control and clarification of the flow speed and flow rate of the sewage and the flocculant, so as to facilitate the addition of a suitable flocculant according to the inlet flow rate of the sewage. This design facilitates the addition of a suitable flocculant to the sewage to ensure the treatment effect of the sewage. In actual use, the following problems still exist: The wastewater treatment device utilizes flowing wastewater to mix with flocculants dispersed in multiple channels to achieve rapid wastewater treatment. However, the rapid mixing of flocculants and wastewater cannot be guaranteed by simply discharging flocculants at multiple locations, and thus the uniformity and efficiency of wastewater treatment cannot be improved. At the same time, when the flocculant is added, it needs to be transported through a liquid pump, which cannot be linked with its own transmission structure, thereby reducing the utilization effect and environmental protection of driving resources, and the flocculated sediment is easy to adhere to the inner wall, thereby affecting the subsequent discharge effect.

[0004] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0005] In response to the above problems, an innovative design was carried out based on the original environmentally friendly wastewater treatment device. Summary of the invention

[0006] The object of the present invention is to provide an environmentally friendly wastewater treatment device to solve the problems in the above background technology that it is difficult to improve the mixing efficiency of wastewater and flocculants, the structural linkage is reduced, and the flocculation sediment is easy to stick together.

[0007] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly wastewater treatment device, comprising a treatment box, An upper cover plate is fixedly installed on the upper end of the processing box body, a lower cover plate is fixedly installed on the lower end of the processing box body, a positioning bearing is inlaid and installed in the middle of the lower cover plate and the upper cover plate, a transmission rod is fixedly connected to the inner ring of the positioning bearing, a servo motor is fixedly connected to the top of the transmission rod, a support frame is fixedly installed on both sides of the servo motor, the bottom end of the support frame is fixedly connected to the upper cover plate, connecting rods are installed at equal angles at the upper and lower ends of the transmission rod located inside the processing box body, and a stirring rod is fixedly installed at one end of the connecting rod away from the transmission rod; A piston pumping mechanism is installed on the front side of the processing box; The piston pumping mechanism is connected to a lifting and cleaning mechanism at the upper and lower ends; A transmission mechanism is connected between the upper and lower ends of the lifting and cleaning mechanism and the transmission rod; The outer ring of the lifting and cleaning mechanism at the bottom is connected with a pneumatic mixing mechanism; A water inlet pipe is installed inside the rear side of the upper cover plate, and a drainage pipe is installed inside the rear side of the lower cover plate.

[0008] Preferably, the piston pumping mechanism includes a mounting seat symmetrically installed on the front side of the processing box body, the inner side of the mounting seat is fixedly connected to the sealing box body, the upper and lower ends of the sealing box body are inlaid with connecting bearings, the inner ring of the connecting bearing is fixedly installed with an inner reciprocating screw rod, the outer ring of the inner reciprocating screw rod is provided with a piston plate, and when the inner reciprocating screw rod rotates, it drives the piston plate and the sealing box body to reciprocate and slide in connection.

[0009] Preferably, the piston pumping mechanism also includes a one-way liquid inlet valve symmetrically installed on the front sides of the upper and lower ends of the sealed box body, the liquid inlet end of the one-way liquid inlet valve is fixedly connected to the liquid inlet pipe, and a one-way liquid outlet valve is installed in the middle of the upper and lower ends of the sealed box body, the liquid outlet end of the one-way liquid outlet valve is fixedly connected to the liquid outlet pipe, the liquid outlet end of the liquid outlet pipe is fixedly connected to a dispersion seat, and the inner ring of the dispersion seat is installed with a first nozzle.

[0010] Preferably, the dispersion seats are symmetrically distributed inside the processing box, and the first nozzles are distributed at equal angles on the inner circle of the dispersion seats.

[0011] The above technical solution facilitates the continuous extraction of external flocculant through the piston movement of the piston pumping mechanism, and can input the extracted flocculant in a dispersed manner into the interior of the treatment box for uniform mixing with the wastewater, thereby improving the flocculant dispersion uniformity of the environmentally friendly wastewater treatment device and improving the wastewater treatment efficiency.

[0012] Preferably, the lifting and cleaning mechanism includes an outer reciprocating screw fixedly mounted at both ends of the inner reciprocating screw, the outer ring of the outer reciprocating screw is provided with a transmission seat, the end of the transmission seat away from the outer reciprocating screw is fixedly mounted with a lifting rod, the lifting rod is slidably connected with the upper cover plate and the lower cover plate, the end of the lifting rod close to the processing box is fixedly connected with a movable scraper seat, the cross-section of the movable scraper seat is arranged in a triangular structure, and the outer ring of the movable scraper seat is slidably connected with the inner wall of the processing box.

[0013] Preferably, the lifting and cleaning mechanism also includes a limiting rod symmetrically installed on the top surface of the movable scraper seat at the upper end and the bottom surface of the movable scraper seat at the lower end, and a through groove is opened inside the upper cover plate and the lower cover plate, and the through groove is slidably connected with the limiting rod and the lifting rod.

[0014] By adopting the above technical solution, it is convenient to utilize the lifting and lowering of the lifting and cleaning mechanism to effectively scrape off the sediment adhered to the inner wall of the treatment box, thereby preventing the sediment from sticking when the wastewater is discharged after treatment, thereby improving the cleaning convenience of the environmentally friendly wastewater treatment device.

[0015] Preferably, the transmission mechanism includes a driven pulley fixedly mounted on the upper and lower ends of the outer reciprocating screw away from one end of the inner reciprocating screw, and a driving pulley is fixedly mounted on the upper and lower ends of the transmission rod, and the outer rings of the driving pulley and the driven pulley are provided with a transmission belt.

[0016] The above technical solution makes it easy to link the transmission rod with the lifting cleaning mechanism and the piston pumping mechanism through the transmission mechanism, which is beneficial to the linkage of the stirring process, the flocculant pumping process and the inner wall cleaning process, thereby improving the overall structural linkage, kinetic energy utilization effect and environmental protection performance of the environmentally friendly wastewater treatment device.

[0017] Preferably, the pneumatic mixing mechanism includes a lifting plate fixedly mounted on the bottom end of the limiting rod away from the movable scraper seat, the outer ring of the lifting plate is provided with an outer sleeve, the top of the outer sleeve is fixedly connected to the bottom surface of the lower cover plate, and the lifting plate is slidably connected to the inner wall of the outer sleeve.

[0018] Preferably, the pneumatic mixing mechanism also includes a one-way air inlet valve fixedly embedded in the bottom of the outer sleeve, and a one-way air outlet valve is also installed at the bottom of the outer sleeve. The air outlet end of the one-way air outlet valve is fixedly connected to a connecting pipe, and the air outlet end of the connecting pipe is rotatably connected to the bottom end of the transmission rod.

[0019] Preferably, the pneumatic mixing mechanism further comprises a connecting groove provided inside the transmission rod, and diverter grooves are provided inside the connecting rod and the stirring rod, the diverter grooves are connected to the connecting grooves, and second nozzles are inlaid and installed at equal intervals on the outer side of the stirring rod.

[0020] The above technical solution is adopted to facilitate the lifting and cleaning mechanism to drive the pneumatic mixing mechanism to perform reciprocating piston movement during the lifting process, so that the transmission rod, connecting rod and stirring rod can cooperate with the transmission rod, connecting rod and stirring rod to pneumatically stir the wastewater inside the treatment box when the piston moves. The rotary stirring of the stirring rod can effectively improve the mixing uniformity and efficiency of the wastewater and flocculant, thereby improving the uniformity and efficiency of wastewater treatment of the environmentally friendly wastewater treatment device.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the environmentally friendly wastewater treatment device can drive the transmission rod, the connecting rod and the stirring rod to rotate through the servo motor, thereby improving the mixing efficiency of the wastewater and the flocculant and improving the wastewater treatment efficiency, and the transmission rod can also cooperate with the transmission mechanism to drive the lifting and cleaning mechanism to lift and slide when rotating, so as to facilitate the scraping of the bonded flocculated sediment, and the lifting and cleaning mechanism can drive the piston pumping mechanism to continuously extract and transport the external flocculant during operation, thereby improving the overall structural linkage and environmental protection performance of the environmentally friendly wastewater treatment device, and the specific contents are as follows: When the transmission rod rotates, it can cooperate with the transmission mechanism to drive the lifting and cleaning mechanism to perform lifting and reciprocating movements. In the process of reciprocating lifting and lowering, the lifting and cleaning mechanism can effectively scrape off the adhered flocculants by closely fitting with the inner wall of the treatment box, thereby preventing the adhesion of flocculants from affecting the thoroughness and effect of the discharge after the wastewater treatment, thereby improving the automatic cleaning effect of the environmentally friendly wastewater treatment device. The lifting and cleaning mechanism can also drive the piston pumping mechanism to perform reciprocating piston motion during operation, so that the piston pumping mechanism can continuously extract the external flocculant and disperse it into the treatment box to effectively mix it with the wastewater, thereby improving the structural linkage between the piston pumping mechanism, the lifting and cleaning mechanism and the transmission rod, and improving the driving resource utilization effect and environmental protection performance; During the lifting process, the piston pumping mechanism can also drive the pneumatic mixing mechanism to continuously convey airflow to the inside of the treatment box, and then cooperate with the rotation of the stirring rod to realize the rotational and pneumatic dual mixing of the sewage and flocculant inside the treatment box, thereby improving the mixing uniformity and efficiency of the wastewater and flocculant in this environmentally friendly wastewater treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the side cross-section structure of the processing box body, the upper cover plate and the lower cover plate of the present invention; Figure 3 It is a schematic diagram of the connection structure of the transmission rod, the connecting rod and the stirring rod of the present invention; Figure 4 It is a schematic diagram of the connection structure of the upper cover plate and the lifting and cleaning mechanism of the present invention; Figure 5 It is a schematic diagram of the distribution structure of the piston pumping mechanism, the lifting and cleaning mechanism and the transmission mechanism of the present invention; Figure 6 It is a schematic diagram of the connection structure between the piston pumping mechanism and the lifting and cleaning mechanism of the present invention; Figure 7 It is a side view structural diagram of the piston pumping mechanism of the present invention; Figure 8 It is a schematic diagram of the side section structure of the piston pumping mechanism of the present invention; Fig. 9 It is a schematic diagram of the connection structure between the inner reciprocating screw rod and the outer reciprocating screw rod of the present invention; Fig.10 It is a schematic diagram of the connection structure between the dispersion seat and the first nozzle of the present invention; Fig.11 It is a schematic diagram of the side sectional structure of the pneumatic mixing mechanism of the present invention.

[0023] In the figure: 1. Processing box; 2. Upper cover; 3. Lower cover; 4. Positioning bearing; 5. Transmission rod; 6. Servo motor; 7. Support frame; 8. Connecting rod; 9. Stirring rod; 10. Mounting seat; 11. Sealing box; 12. Connecting bearing; 13. Internal reciprocating screw rod; 14. Piston plate; 15. One-way liquid inlet valve; 16. Liquid inlet pipe; 17. One-way liquid outlet valve; 18. Liquid outlet pipe; 19. Dispersion seat; 20. First nozzle; 2 1. External reciprocating screw; 22. Transmission seat; 23. Lifting rod; 24. Movable scraper seat; 25. Limiting rod; 26. Through groove; 27. Driven pulley; 28. Driving pulley; 29. ​​Transmission belt; 30. Lifting plate; 31. Outer sleeve; 32. One-way air inlet valve; 33. One-way air outlet valve; 34. Connecting pipe; 35. Connecting groove; 36. Diverter groove; 37. Second nozzle; 38. Water inlet pipe; 39. Drainage pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-11 The present invention provides a technical solution: an environmentally friendly wastewater treatment device, comprising a treatment box 1, an upper cover plate 2 is fixedly installed on the upper end of the treatment box 1, a lower cover plate 3 is fixedly installed on the lower end of the treatment box 1, a positioning bearing 4 is inlaid and installed in the middle of the lower cover plate 3 and the upper cover plate 2, a transmission rod 5 is fixedly connected to the inner ring of the positioning bearing 4, a servo motor 6 is fixedly connected to the top of the transmission rod 5, a support frame 7 is fixedly installed on both sides of the servo motor 6, and the bottom end of the support frame 7 is fixedly connected to the upper cover plate 2, a connecting rod 8 is installed at equal angles at the upper and lower ends of the transmission rod 5 located inside the treatment box 1, and a stirring rod 9 is fixedly installed at one end of the connecting rod 8 away from the transmission rod 5, a water inlet pipe 38 is installed inside the rear side of the upper cover plate 2, and a drainage pipe 39 is installed inside the rear side of the lower cover plate 3; The design of the above structure enables the servo motor 6 to drive the transmission rod 5 to rotate, and then the transmission rod 5 can cooperate with the positioning bearings 4 at the upper and lower ends to rotate inside the upper cover plate 2 and the lower cover plate 3, and then the transmission rod 5 can drive the connecting rod 8 and the stirring rod 9 to rotate, so that the stirring rod 9 can effectively rotate and stir the wastewater and flocculant inside the treatment box 1 during the rotation process, thereby improving the mixing efficiency and uniformity of the wastewater and flocculant. The setting of the support frame 7 can stably position the servo motor 6, and the water inlet pipe 38 can input the wastewater into the interior of the treatment box 1, and the drainage pipe 39 can discharge the treated wastewater.

[0026] A transmission mechanism is connected between the upper and lower ends of the lifting cleaning mechanism and the transmission rod 5, and the transmission mechanism includes a driven pulley 27 fixedly installed on the upper and lower ends of the outer reciprocating screw 21 away from the end of the inner reciprocating screw 13, and a driving pulley 28 is fixedly installed on the upper and lower ends of the transmission rod 5. The outer rings of the driving pulley 28 and the driven pulley 27 are provided with a transmission belt 29; The design of the above structure enables the transmission rod 5 to drive the active pulley 28 installed thereon to rotate when it rotates, and then the active pulley 28 can cooperate with the transmission belt 29 to drive the driven pulley 27 to rotate, so that the driven pulley 27 can drive the lifting and cleaning mechanism and the piston pumping mechanism to operate.

[0027] The piston pumping mechanism is connected with a lifting and cleaning mechanism at the upper and lower ends, and the lifting and cleaning mechanism includes an outer reciprocating screw 21 fixedly installed at both ends of the inner reciprocating screw 13, and the outer ring of the outer reciprocating screw 21 is provided with a transmission seat 22, and the end of the transmission seat 22 away from the outer reciprocating screw 21 is fixedly installed with a lifting rod 23, and the lifting rod 23 is slidably connected with the upper cover plate 2 and the lower cover plate 3. The end of the lifting rod 23 close to the processing box 1 is fixedly connected with a movable scraper seat 24, and the cross-section of the movable scraper seat 24 is arranged in a triangular structure, and the outer ring of the movable scraper seat 24 is slidably connected with the inner wall of the processing box 1. The lifting and cleaning mechanism also includes a limiting rod 25 symmetrically installed on the top surface of the upper movable scraper seat 24 and the bottom surface of the lower movable scraper seat 24, and a through groove 26 is provided inside the upper cover plate 2 and the lower cover plate 3, and the through groove 26 is limitedly slidably connected with the limiting rod 25 and the lifting rod 23; The design of the above structure enables the driven pulley 27 to rotate when it is driven to drive the outer reciprocating screw 21 at the upper and lower ends to rotate, and then the outer reciprocating screw 21 can drive the transmission seat 22 on its surface to move back and forth when rotating, and then the transmission seat 22 will drive the lifting rods 23 at the upper and lower ends to cooperate with the corresponding through grooves 26 to slide within the upper cover plate 2 and the lower cover plate 3 when reciprocating, thereby driving the movable scraper seats 24 at the upper and lower ends to slide towards and in the opposite directions, and then the movable scraper seat 24 can effectively scrape the adhered sediment by fitting with the treatment box 1 during the sliding process, avoiding the uneven mixing of the flocculant and the wastewater, wherein the sliding connection between the limit rod 25 and the corresponding through groove 26 can limit the lifting and sliding of the movable scraper seat 24, thereby ensuring the sliding cleaning stability of the movable scraper seat 24.

[0028] A piston pumping mechanism is installed on the front side of the processing box 1. The piston pumping mechanism includes a mounting seat 10 symmetrically installed on the front side of the processing box 1. A sealed box 11 is fixedly connected to the inner side of the mounting seat 10. Connecting bearings 12 are embedded and installed inside the upper and lower ends of the sealed box 11. An inner reciprocating screw rod 13 is fixedly installed on the inner ring of the connecting bearing 12. The outer ring of the inner reciprocating screw rod 13 is provided with a piston plate 14. When the inner reciprocating screw rod 13 rotates, it drives the piston plate 14 to reciprocate and fit the sealed box 11 in a sliding connection. The piston pumping mechanism also includes A one-way liquid inlet valve 15 is symmetrically installed on the front sides of the upper and lower ends of the sealed box body 11, and the liquid inlet end of the one-way liquid inlet valve 15 is fixedly connected to the liquid inlet pipe 16. A one-way liquid outlet valve 17 is installed in the middle of the upper and lower ends of the sealed box body 11, and the liquid outlet end of the one-way liquid outlet valve 17 is fixedly connected to the liquid outlet pipe 18, and the liquid outlet end of the liquid outlet pipe 18 is fixedly connected to a dispersion seat 19, and the dispersion seat 19 is symmetrically distributed inside the processing box body 1, and the inner circle of the dispersion seat 19 is installed with a first nozzle 20, and the first nozzle 20 is distributed at equal angles on the inner circle of the dispersion seat 19; The design of the above structure enables the outer reciprocating screw 21 at the upper and lower ends to drive the inner reciprocating screw 13 to rotate when rotating, and then the inner reciprocating screw 13 will cooperate with the connecting bearing 12 to rotate inside the sealed box 11, and then the rotation of the inner reciprocating screw 13 can drive the piston plate 14 to perform a lifting and reciprocating sliding inside the sealed box 11, and then it can cooperate with the one-way liquid inlet valve 15 and the liquid inlet pipe 16 to continuously extract the external flocculant during the reciprocating lifting and lowering, and can cooperate with the one-way liquid outlet valve 17 and the liquid outlet pipe 18 to disperse the extracted flocculant into the inside of the dispersion seat 19, and spray it into the wastewater inside the treatment box 1 through the first nozzles 20 distributed at equal angles in the inner circle to achieve uniform addition of flocculant, wherein the mounting seat 10 can stably install the sealed box 11.

[0029] The outer ring of the bottom lifting cleaning mechanism is connected with a pneumatic mixing mechanism, which includes a lifting plate 30 fixedly installed on the end of the bottom limiting rod 25 away from the movable scraper seat 24, the outer ring of the lifting plate 30 is sleeved with an outer sleeve 31, the top of the outer sleeve 31 is fixedly connected to the bottom surface of the lower cover plate 3, and the lifting plate 30 is slidingly connected with the inner wall of the outer sleeve 31, the pneumatic mixing mechanism also includes a one-way air inlet valve 32 fixedly embedded in the bottom of the outer sleeve 31, and a one-way air outlet valve 33 is also installed at the bottom of the outer sleeve 31, and the air outlet end of the one-way air outlet valve 33 is fixedly connected with a connecting pipe 34, and the air outlet end of the connecting pipe 34 is rotatably connected to the bottom end of the transmission rod 5, the pneumatic mixing mechanism also includes a connecting groove 35 opened in the transmission rod 5, and a diverter groove 36 is opened in the connecting rod 8 and the stirring rod 9, and the diverter groove 36 is connected to the connecting groove 35, and a second nozzle 37 is inlaid and installed at equal intervals on the outside of the stirring rod 9; The design of the above structure enables the bottom limit rod 25 to drive the lifting plate 30 at the bottom to slide back and forth inside the outer sleeve 31 as the corresponding movable scraper seat 24 is lifted and lowered, so that it can cooperate with the one-way air inlet valve 32 to take in air during the reciprocating sliding process, and can transport the extracted gas to the connecting groove 35 inside the transmission rod 5 through the one-way air outlet valve 33 and the connecting pipe 34, and then spray it out through the diverter groove 36 and the second nozzle 37. In the process of spraying, it can generate power to pneumatically mix the flocculant and wastewater inside the treatment box 1, thereby improving the mixing uniformity and efficiency of the flocculant and wastewater.

[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly wastewater treatment device, comprising a treatment box (1), characterized in that: An upper cover plate (2) is fixedly mounted on the upper end of the processing box (1), a lower cover plate (3) is fixedly mounted on the lower end of the processing box (1), a positioning bearing (4) is inlaid and mounted in the middle of the lower cover plate (3) and the upper cover plate (2), a transmission rod (5) is fixedly connected to the inner ring of the positioning bearing (4), a servo motor (6) is fixedly connected to the top end of the transmission rod (5), a support frame (7) is fixedly mounted on both sides of the servo motor (6), the bottom end of the support frame (7) is fixedly connected to the upper cover plate (2), connecting rods (8) are mounted at equal angles on the upper and lower ends of the transmission rod (5) located inside the processing box (1), and a stirring rod (9) is fixedly mounted on the end of the connecting rod (8) away from the transmission rod (5); A piston pumping mechanism is installed on the front side of the processing box (1); The piston pumping mechanism is connected to a lifting and cleaning mechanism at the upper and lower ends; A transmission mechanism is provided between the upper and lower ends of the lifting and cleaning mechanism and the transmission rod (5); The outer ring of the lifting and cleaning mechanism at the bottom is connected with a pneumatic mixing mechanism; A water inlet pipe (38) is installed inside the rear side of the upper cover plate (2), and a drainage pipe (39) is installed inside the rear side of the lower cover plate (3).

2. An environmentally friendly wastewater treatment device according to claim 1, characterized in that: The piston pumping mechanism comprises a mounting seat (10) symmetrically mounted on the front side of a processing box (1); a sealing box (11) is fixedly connected to the inner side of the mounting seat (10); connecting bearings (12) are embedded and mounted inside the upper and lower ends of the sealing box (11); an inner reciprocating screw (13) is fixedly mounted on the inner ring of the connecting bearing (12); a piston plate (14) is sleeved on the outer ring of the inner reciprocating screw (13); and when the inner reciprocating screw (13) rotates, the piston plate (14) is driven to slide and reciprocate with the sealing box (11).

3. An environmentally friendly wastewater treatment device according to claim 2, characterized in that: The piston pumping mechanism further comprises a one-way liquid inlet valve (15) symmetrically mounted on the front sides of the upper and lower ends of the sealed box body (11); the liquid inlet end of the one-way liquid inlet valve (15) is fixedly connected to a liquid inlet pipe (16); a one-way liquid outlet valve (17) is mounted in the middle of the upper and lower ends of the sealed box body (11); the liquid outlet end of the one-way liquid outlet valve (17) is fixedly connected to a liquid outlet pipe (18); the liquid outlet end of the liquid outlet pipe (18) is fixedly connected to a dispersion seat (19); and a first nozzle (20) is mounted on the inner ring of the dispersion seat (19).

4. An environmentally friendly wastewater treatment device according to claim 3, characterized in that: The dispersion seats (19) are symmetrically distributed inside the processing box (1), and the first nozzles (20) are distributed at equal angles on the inner circle of the dispersion seats (19).

5. An environmentally friendly wastewater treatment device according to claim 4, characterized in that: The lifting and cleaning mechanism comprises an outer reciprocating screw (21) fixedly mounted at both ends of an inner reciprocating screw (13); an outer ring of the outer reciprocating screw (21) is provided with a transmission seat (22); a lifting rod (23) is fixedly mounted on one end of the transmission seat (22) away from the outer reciprocating screw (21); the lifting rod (23) is slidably connected to an upper cover plate (2) and a lower cover plate (3); an end of the lifting rod (23) close to the processing box (1) is fixedly connected to a movable scraper seat (24); the cross-section of the movable scraper seat (24) is arranged in a triangular structure; the outer ring of the movable scraper seat (24) is slidably connected to the inner wall of the processing box (1).

6. An environmentally friendly wastewater treatment device according to claim 5, characterized in that: The lifting cleaning mechanism further comprises a limiting rod (25) symmetrically mounted on the top surface of the movable scraper seat (24) at the upper end and the bottom surface of the movable scraper seat (24) at the lower end; a through groove (26) is provided inside the upper cover plate (2) and the lower cover plate (3); and the through groove (26) is connected to the limiting rod (25) and the lifting rod (23) in a limiting sliding manner.

7. An environmentally friendly wastewater treatment device according to claim 6, characterized in that: The transmission mechanism comprises a driven pulley (27) fixedly mounted on the upper and lower ends of the outer reciprocating screw (21) away from one end of the inner reciprocating screw (13), and a driving pulley (28) fixedly mounted on the upper and lower ends of the transmission rod (5). The outer rings of the driving pulley (28) and the driven pulley (27) are provided with a transmission belt (29).

8. The environmentally friendly wastewater treatment device according to claim 6, characterized in that: The pneumatic mixing mechanism comprises a lifting plate (30) fixedly mounted on the end of the limiting rod (25) at the bottom away from the movable scraper seat (24); an outer sleeve (31) is provided on the outer ring of the lifting plate (30); the top end of the outer sleeve (31) is fixedly connected to the bottom surface of the lower cover plate (3); and the lifting plate (30) is slidably connected to the inner wall of the outer sleeve (31).

9. An environmentally friendly wastewater treatment device according to claim 8, characterized in that: The pneumatic mixing mechanism further comprises a one-way air inlet valve (32) fixedly embedded in the bottom of the outer sleeve (31); a one-way air outlet valve (33) is also installed at the bottom of the outer sleeve (31); the air outlet end of the one-way air outlet valve (33) is fixedly connected to a connecting pipe (34); the air outlet end of the connecting pipe (34) is rotatably connected to the bottom end of the transmission rod (5).

10. An environmentally friendly wastewater treatment device according to claim 9, characterized in that: The pneumatic mixing mechanism further comprises a connecting groove (35) provided inside the transmission rod (5), a diverter groove (36) provided inside the connecting rod (8) and the stirring rod (9), the diverter groove (36) being connected to the connecting groove (35), and a second nozzle (37) being inlaid and installed at equal intervals on the outer side of the stirring rod (9).

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