Device and method for sewage treatment

Abstract

The invention relates to the technical field of sewage treatment, in particular to a device and method for sewage treatment.The device comprises a box, a dry-wet separation mechanism, a rotating disc, a driving assembly, a transmission mechanism and a fixing frame, and the box is provided with a filtering cavity, a flow guide groove and a circular groove; the dry-wet separation mechanism is arranged in the filtering cavity, the dry material output end is located outside the box body, and the dry-wet separation mechanism communicates with a feeding hopper with a crushing mechanism; the turntable is rotationally arranged in the circular groove; a plurality of push plates are arranged on the turntable; the driving assembly is arranged on the box body and assists in driving the rotating disc to rotate in an accelerated mode. The transmission mechanism is in transmission connection with the turntable, the crushing mechanism and the dry-wet separation mechanism; the fixing frame is located in the filtering cavity, and a fine filtering assembly is arranged on the fixing frame. Flowing sewage is matched with the driving assembly to drive the crushing mechanism and the dry-wet separation mechanism to operate, the energy consumption of equipment is reduced, meanwhile, large-size impurities in the sewage are crushed and removed, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device and method. Background Art

[0002] Sewage treatment is an important part of protecting the environment. Although larger impurities are intercepted before sewage enters the urban sewage network, sewage is still mixed with various impurities, such as dead branches and leaves, foam, plastic bags, etc. These impurities often increase the burden on sewage treatment equipment, causing the sewage treatment equipment to be shut down for cleaning very frequently.

[0003] A Chinese patent with announcement number CN118320497B discloses a sewage treatment device for sewage treatment. The device solves the problem that existing sewage treatment devices crush plastic film products during use, generating many small plastic film fragments, and simultaneously crushing solid debris inside the plastic film products, which increases the difficulty of sewage treatment.

[0004] However, the device still has some shortcomings: the device has low efficiency in cleaning solid impurities, impurities can easily block the holes of the filter unit, causing the processing speed to slow down, and the device requires multiple sets of power equipment to work together, resulting in high energy consumption. Summary of the Invention

[0005] The purpose of the present invention is to address the problems existing in the background technology and to provide a device and method for sewage treatment.

[0006] The technical solution of the present invention is as follows: On the one hand, the present invention provides a sewage treatment device, comprising a box body, a filter chamber, a guide groove and a circular groove provided on the box body, the circular groove being connected to the guide groove, a water inlet pipe connected to the circular groove being provided on the box body, and a water outlet pipe connected to the filter chamber being provided on the box body;

[0007] The dry-wet separation mechanism is arranged on the box body, the wet material output end of the dry-wet separation mechanism is located in the filter cavity, the dry material output end of the dry-wet separation mechanism is located outside the box body, the input end of the dry-wet separation mechanism is arranged with the guide trough feed hopper, and the crushing mechanism is arranged in the feed hopper;

[0008] A turntable is coaxially arranged in the circular groove, and a plurality of push plates are arranged in a circular array around the axis of the turntable and are slidably connected to the inner wall of the circular groove;

[0009] The driving assembly is arranged on the box body, and the driving assembly assists in driving the turntable to rotate faster when the sewage pushes the turntable to rotate slowly;

[0010] Transmission mechanism, the transmission mechanism transmits and connects the turntable, the crushing mechanism and the dry-wet separation mechanism;

[0011] and a fixing frame, which is arranged in the filter cavity and below the dry-wet separation mechanism; a sliding frame is arranged on the fixing frame; and a fine filter assembly is arranged on the sliding frame.

[0012] Preferably, the driving assembly includes a rotating shaft A, a ratchet, ratchet teeth, a motor, a speed sensor and a controller. The rotating shaft A is rotatably connected to the housing, the ratchet is coaxially connected to the rotating shaft A, a groove is coaxially arranged on the turntable, and a receiving groove connected to the groove is arranged on the turntable, the ratchet is inserted into the groove and slidably connected to the arc-shaped side wall of the groove, a spring rod is arranged in the receiving groove, the ratchet teeth are slidably arranged in the receiving groove and connected to the movable end of the spring rod, and the ratchet teeth are unidirectionally engaged with the ratchet wheel; the body of the speed sensor is arranged on the rotating shaft A, and the speed sensor detects the rotation speed of the turntable in the working state, the body of the motor is connected to the housing, the output end of the motor is connected to the rotating shaft A, the controller is arranged on the housing, and the controller is electrically connected to the motor and the speed sensor.

[0013] Preferably, the transmission mechanism includes a transmission component A and a transmission component B, the transmission component A is connected to the turntable and the dry-wet separation mechanism, and the transmission component B is connected to the turntable and the crushing mechanism.

[0014] Preferably, the dry-wet separation mechanism includes a separation filter cartridge, an auger, a slide rod, an extrusion plate, a permanent magnet and an electromagnet. A feed hole and a slag discharge hole are respectively provided on the separation filter cartridge at both ends thereof. A plurality of water seepage holes are provided on the separation filter cartridge between the feed hole and the slag discharge hole. The feed hopper is connected to the feed hole. A discharge pipe is provided on the outside of the slag discharge hole. The auger is provided in the separation filter cartridge and is coaxially rotatably connected thereto. The auger is in sliding contact with the inner wall of the separation filter cartridge. The slide rod is inserted into the separation filter cartridge along the end away from the feed hopper and is slidably connected thereto. The extrusion plate is connected to one end of the slide rod inserted into the separation filter cartridge. The permanent magnet is provided at the end of the extrusion plate away from the feed hopper. The electromagnet is provided on the separation filter cartridge and corresponds to the permanent magnet. The magnetic poles of the electromagnet and the end close to the permanent magnet are the same.

[0015] Preferably, the transmission assembly A includes a rotating shaft B, a gear B, a bevel gear and an inner gear ring. One end of the rotating shaft B is inserted into the circular groove and is rotatably connected to the box. The gear B is coaxially connected to the end of the rotating shaft B inserted into the circular groove. The two bevel gears are coaxially connected to the center axis of the auger and the rotating shaft B respectively. The two bevel gears are meshed, and the inner gear ring is coaxially arranged at the bottom of the turntable and meshes with the gear B.

[0016] Preferably, the crushing mechanism includes two crushing rollers, both of which are arranged in the feed hopper. A guide plate is arranged obliquely above the crushing rollers in the feed hopper. A gear A is coaxially arranged at one end of the roller shafts of the two crushing rollers extending out of the feed hopper, and the two gears A are meshed and connected.

[0017] Preferably, the transmission assembly B includes a coaxial connection, and the transmission assembly B includes a positioning shaft, a pulley A, a pulley B, a toothed belt, a rotating shaft C, a helical gear and a helical toothed disk; the positioning shaft is coaxially arranged at the bottom of the turntable and is rotatably connected to the box body, the pulley A is coaxially connected to the positioning shaft, the rotating shaft C is rotatably connected to the box body, the pulley B is coaxially connected to the rotating shaft C, the pulley B is connected to the pulley C through a toothed belt transmission, the helical gear is coaxially connected to the rotating shaft C, the helical toothed disk is coaxially connected to the roller shaft of one of the crushing rollers, and the helical gear is meshed with the helical toothed disk.

[0018] In another aspect, the present invention provides a sewage treatment method, which uses the above-mentioned sewage treatment device, comprising the following steps:

[0019] S1. Sewage enters the circular trough through the sewage pipe and the water inlet pipe and enters the feed hopper through the diversion trough;

[0020] S2. The flowing sewage pushes the push plate and the turntable to rotate, which in turn drives the crushing mechanism and the dry-wet separation mechanism to operate. If the sewage flow is large and the turntable speed is high, the drive component will not intervene. If the sewage flow is small and the turntable speed is low, the drive component will intervene and drive the turntable to rotate at high speed.

[0021] S3: The crushing mechanism first crushes the large impurities mixed in the sewage, and then the sewage and small impurities enter the dry-wet separation mechanism, which squeezes out the small impurities and discharges them outside the box;

[0022] S4. The sewage with larger volume of impurities is filtered through the filter and discharged through the outlet pipe.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] By setting a crushing mechanism and a dry-wet separation mechanism, the crushing mechanism first crushes large impurities in the sewage into small pieces, and then uses the dry-wet separation mechanism to separate the crushed impurities from the sewage, and then directly discharges the impurities after squeezing them dry for subsequent separate treatment, thereby reducing the storage and operation load of the device and avoiding high-frequency clogging of the filtering structure; by setting a turntable and a push plate structure, the flow of sewage is used to drive the turntable to rotate, and the crushing mechanism and the dry-wet separation mechanism are linked to the turntable through a transmission mechanism, that is, the rotating turntable drives the dry-wet separation mechanism and the crushing mechanism to operate synchronously, and no external power is required when the sewage flow is large and the turntable speed is high; by setting a drive component to assist in driving the turntable, when the turntable speed is low, the drive component intervenes in real time through the turntable speed value obtained by the speed sensor to ensure that the turntable speed remains within a certain range, thereby ensuring sufficient power for subsequent crushing and dry-wet separation. At the same time, the present invention uses permanent magnets and electromagnets as tensioning structures in the dry-wet separation mechanism, and the tension adjustment is simpler and more convenient, and has good elasticity and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of an embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the internal structure of the box;

[0027] Figure 3 It is a structural diagram of the dry-wet separation mechanism;

[0028] Figure 4 Schematic diagram of the connection structure between the drive assembly, the dry-wet separation mechanism and the crushing mechanism;

[0029] Figure 5 It is a structural diagram of the drive component;

[0030] Figure 6 It is a structural diagram of the filtering mechanism;

[0031] Figure 7 Schematic diagram of the layered structure of the filter.

[0032] Reference numerals: 1, housing; 101, filter chamber; 102, guide groove; 103, circular groove; 104, water inlet pipe; 2, water outlet pipe; 3, separation filter cartridge; 301, feed hole; 302, slag discharge hole; 303, water seepage hole; 4, feed hopper; 5, discharge pipe; 6, auger; 7, slide rod; 8, extrusion plate; 9, permanent magnet; 10, electromagnet; 11, crushing roller; 111, gear A; 112, bevel gear plate; 12, turntable; 13, push plate; 14, drive assembly; 141, shaft A; 142, Ratchet; 143. Spring rod; 144. Ratchet; 145. Motor; 15. Transmission assembly A; 151. Rotating shaft B; 152. Gear B; 153. Bevel gear; 154. Internal gear ring; 16. Rotating shaft C; 17. Helical gear; 18. Transmission assembly B; 19. Fixed frame; 191. Material guide cone; 192. Diversion hole; 193. Slide; 20. Slide; 2001. Cover plate; 21. Filter; 211. Filter A; 212. Ultrafiltration membrane; 213. Activated carbon bag; 214. Filter B. DETAILED DESCRIPTION

[0033] Example 1

[0034] like Figure 1-Figure 7As shown, a sewage treatment device proposed by the present invention includes a housing 1, a dry-wet separation mechanism, a turntable 12, a drive assembly 14, a transmission mechanism, and a fixing frame 19. The housing 1 is provided with a filter chamber 101, a guide groove 102, and a circular groove 103. The circular groove 103 is connected to the guide groove 102. The housing 1 is provided with a water inlet pipe 104 connected to the circular groove 103. The water inlet pipe 104 is obliquely inserted into the circular groove 103. The housing 1 is provided with a water outlet pipe 2 connected to the filter chamber 101. The dry-wet separation mechanism is provided on the housing 1. The wet material output end of the dry-wet separation mechanism is located in the filter chamber 101. The dry material output end of the dry-wet separation mechanism is located outside the housing 1. The input end of the dry-wet separation mechanism is provided with a feed hopper 4 connected to the guide groove 102. The feed hopper 4 is provided with a crushing mechanism. The crushing mechanism includes two crushing rollers 11, both of which are arranged in the feed hopper 4. A guide plate is obliquely arranged above the crushing rollers 11 in the feed hopper 4. A gear A111 is coaxially arranged at one end of the roller shafts of the two crushing rollers 11 extending out of the feed hopper 4, and the two gears A111 are meshed and connected. The dry-wet separation mechanism includes a separation filter cartridge 3, an auger 6, a slide rod 7, an extrusion plate 8, a permanent magnet 9 and an electromagnet 10. A feed hole 301 and a slag discharge hole 302 are respectively provided on the separation filter cartridge 3 at both ends thereof. A number of water seepage holes 303 are provided on the separation filter cartridge 3 between the feed hole 301 and the slag discharge hole 302. The feed hopper 4 is connected to the feed hole 301, and a discharge pipe 5 is provided on the outside of the slag discharge hole 302. The auger 6 is provided in the separation filter cartridge 3 and is coaxially rotatably connected thereto. The auger 6 is in sliding contact with the inner wall of the separation filter cartridge 3. The slide rod 7 is inserted into the separation filter cartridge 3 along the end away from the feed hopper 4 and is slidably connected thereto. The extrusion plate 8 is connected to one end of the slide rod 7 inserted into the separation filter cartridge 3. The permanent magnet 9 is provided at the end of the extrusion plate 8 away from the feed hopper 4. The electromagnet 10 is provided on the separation filter cartridge 3 and corresponds to the permanent magnet 9. The magnetic poles of the electromagnet 10 and the end close to the permanent magnet 9 are the same. The turntable 12 is coaxially rotatable within the circular groove 103. A plurality of push plates 13 are arranged in a circular array around the axis of the turntable 12, slidably connected to the inner wall of the circular groove 103. The drive assembly 14 includes a rotating shaft A141, a ratchet 142, ratchet teeth 144, a motor 145, a speed sensor, and a controller. The rotating shaft A141 is rotatably connected to the housing 1, and the ratchet 142 is coaxially connected to the rotating shaft A141. A groove is coaxially provided on the turntable 12, and a receiving groove is provided on the turntable 12 that communicates with the groove. The ratchet 142 is inserted into the groove and slidably connected to the curved sidewall of the groove. A spring rod 143 is provided in the receiving groove. The ratchet teeth 144 are slidably provided in the receiving groove and connected to the movable end of the spring rod 143. The ratchet teeth 144 are unidirectionally meshed with the ratchet 142.The body of the speed sensor is set on the rotating shaft A141. The speed sensor detects the rotation speed of the turntable 12 in the working state. The body of the motor 145 is connected to the box body 1, and the output end of the motor 145 is connected to the rotating shaft A141. The controller is set on the box body 1. The controller is electrically connected to the motor 145 and the speed sensor. The driving component 14 assists in driving the turntable 12 to accelerate its rotation when the sewage pushes the turntable 12 to rotate slowly. The transmission mechanism includes a transmission component A15 and a transmission component B18. The transmission component A15 transmits and connects the turntable 12 and the dry-wet separation mechanism, and the transmission component B18 transmits and connects the turntable 12 and the crushing mechanism. The transmission component A15 includes a rotating shaft B151, a gear B152, a bevel gear 153 and an inner gear ring 154. One end of the rotating shaft B151 is inserted into the circular groove 103 and is rotatably connected to the box body 1. The gear B152 is coaxially connected to the end of the rotating shaft B151 inserted into the circular groove 103. The two bevel gears 153 are coaxially connected to the center axis of the auger 6 and the rotating shaft B151 respectively. The two bevel gears 153 are meshed. The inner gear ring 154 is coaxially arranged at the bottom of the turntable 12 and meshes with the gear B152. Transmission assembly B includes a coaxial connection. Transmission assembly B18 includes a positioning shaft, pulley A, pulley B, toothed belt, rotating shaft C16, bevel gear 17, and bevel gear plate 112. The positioning shaft is coaxially arranged at the bottom of the rotating disk 12 and is rotationally connected to the housing 1. Pulley A is coaxially connected to the positioning shaft. Rotating shaft C16 is rotationally connected to the housing 1. Pulley B is coaxially connected to rotating shaft C16. Pulley B and pulley C are connected via a toothed belt transmission. Bevel gear 17 is coaxially connected to rotating shaft C16. Bevel gear plate 112 is coaxially connected to the roller shaft of one of the crushing rollers 11, and bevel gear 17 meshes with bevel gear plate 112. The transmission mechanism transmits and connects the rotating disk 12, the crushing mechanism, and the dry-wet separation mechanism. The fixed frame 19 is arranged in the filter chamber 101 and is located below the dry-wet separation mechanism. The water outlet pipe 2 is located below the fixed frame 19. A slide 20 is arranged on the fixed frame 19. A mounting hole is arranged on the slide 20. A fine filtration component is arranged in the mounting hole. The fine filtration component includes a filter 21. The filter 21 includes a filter screen A211, an ultrafiltration membrane 212, an activated carbon bag 193 and a filter screen B214 distributed in layers from bottom to top.

[0035] In this embodiment, the sewage enters the circular groove 103 and pushes the push plate 13, and then the sewage enters the feed hopper 4 through the guide groove 102. The flowing sewage drives the turntable 12 to rotate, thereby driving the pulley A to rotate through the positioning shaft. The pulley A drives the pulley B and the rotating shaft C16 to rotate through the toothed belt. The rotation of the rotating shaft C16 drives the helical gear 17 to rotate. The helical gear 17 drives the helical gear plate 112 and the crushing roller 11 to rotate. The two crushing rollers 11 rotate relative to each other under the transmission action of the two meshing gears A111 and crush the large impurities in the sewage. The crushed impurities and sewage enter the separation filter cartridge 3. While the turntable 12 rotates, the turntable 12 drives the inner gear ring 154 to rotate, and the inner gear ring 154 drives the gear B152 The gear B152 drives the rotating shaft B151 and the bevel gear 153 to rotate, and then drives the auger 6 to rotate. The rotating auger 6 pushes the mixture in the separation filter cartridge 3 toward the slag discharge hole 302. In this process, due to the obstruction of the extrusion plate 8 and the tension of the permanent magnet 9 and the electromagnet 10, the water and fine impurities in the mixture seep out along the seepage hole 303. The large-volume impurities are gradually squeezed out and discharged from the slag discharge hole 302 to the outside of the box body 1 in the process of pushing the extrusion plate 8. Then the wet material reaches the top of the filter 21. The fine impurities in the wet material pass through the filter screen B214, the activated carbon bag 213, the ultrafiltration membrane 212 and the filter screen A211 in turn and complete the fine filtration. The water after fine filtration is discharged from the outlet pipe 2. If the speed sensor detects that the speed of the turntable 12 does not reach the preset value, the motor 145 starts and drives the shaft A141 to rotate, and the shaft A141 drives the ratchet 142 to rotate. The ratchet 142 cooperates with the ratchet teeth 144 to push the turntable 12 to accelerate, ensuring that the crushing and dry-wet separation steps have sufficient power.

[0036] Example 2

[0037] like Figure 2 and Figure 6 As shown, a sewage treatment device proposed by the present invention, compared with the first embodiment, is provided with one on each side of a guide cone 191 centrally provided on the fixed frame 19, a guide hole 192 is provided on each side of the guide cone 191 on the fixed frame 19, and two slide grooves 193 connected to the guide holes 192 on the corresponding sides are provided on the fixed frame 19, the number of slides 20 is two, a cover plate 2001 is provided on the slide 20, the cover plate 2001 is inserted into the slide groove 193 on the corresponding side, and the end of the slide 20 away from the cover plate 2001 extends out of the outside of the box body 1 and is slidably connected thereto, and a handle is provided on the end of the slide 20 extending out of the box body 1.

[0038] In this embodiment, when the filter 21 needs to be cleaned or replaced, the handle is pulled to pull the slide 20 on one side out to the cover plate 2001 to close the guide hole 192, and the filter 21 on the slide 20 is cleaned or replaced. During this process, the fine filtration function of the other side is retained, and then the side slide 20 is pushed into the box body 1 and reset, and then the filter 21 on the other side can be processed. This structure does not require shutdown processing and is easy to disassemble and clean.

[0039] Example 3

[0040] The present invention proposes a sewage treatment method, which uses the sewage treatment device described in any one of the first and second embodiments, and specifically includes the following steps:

[0041] S1. Sewage enters the circular trough 103 through the sewage pipe and the water inlet pipe 104 and enters the feed hopper 4 through the guide groove 102.

[0042] S2. The flowing sewage pushes the push plate 13 and the turntable 12 to rotate, thereby driving the crushing mechanism and the dry-wet separation mechanism to operate. If the sewage flow is large and the turntable 12 rotates at a high speed, the drive component 14 will not intervene. If the sewage flow is small and the turntable 12 rotates at a low speed, the drive component 14 will intervene and drive the turntable 12 to rotate at high speed.

[0043] S3. The crushing mechanism first crushes the large-volume impurities mixed in the sewage, and then the sewage and small-volume impurities enter the dry-wet separation mechanism, which squeezes the small-volume impurities and discharges them outside the box 1.

[0044] S4. The sewage with larger volume impurities removed is finely filtered through the filter 21 and discharged through the outlet pipe 2.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A sewage treatment device, characterized in that: include: A box body (1), wherein a filter chamber (101), a guide groove (102) and a circular groove (103) are provided on the box body (1), the circular groove (103) is communicated with the guide groove (102), a water inlet pipe (104) communicated with the circular groove (103) is provided on the box body (1), and a water outlet pipe (2) communicated with the filter chamber (101) is provided on the box body (1); A dry-wet separation mechanism is provided on the box body (1), a wet material output end of the dry-wet separation mechanism is located in the filter cavity (101), a dry material output end of the dry-wet separation mechanism is located outside the box body (1), an input end of the dry-wet separation mechanism is provided with a feed hopper (4) of the guide groove (102), and a crushing mechanism is provided in the feed hopper (4); A turntable (12) is coaxially rotatably arranged in the circular groove (103), and a plurality of push plates (13) are arranged on the turntable (12) in a circular array around its axis and are slidably connected to the inner wall of the circular groove (103); A driving assembly (14), the driving assembly (14) is arranged on the housing (1), and the driving assembly (14) assists in driving the rotating disc (12) to accelerate its rotation when the sewage pushes the rotating disc (12) to rotate slowly; A transmission mechanism, the transmission mechanism transmission-connects the turntable (12), the crushing mechanism and the dry-wet separation mechanism; and a fixed frame (19), the fixed frame (19) being arranged in the filter cavity (101) and located below the dry-wet separation mechanism, a slide frame (20) being arranged on the fixed frame (19), and a fine filter assembly being arranged on the slide frame (20).

2. A sewage treatment device according to claim 1, characterized in that: The driving assembly (14) includes a rotating shaft A (141), a ratchet (142), ratchet teeth (144), a motor (145), a speed sensor and a controller. The rotating shaft A (141) is rotatably connected to the box (1). The ratchet (142) is coaxially connected to the rotating shaft A (141). A groove is coaxially provided on the turntable (12), and a receiving groove communicating with the groove is provided on the turntable (12). The ratchet (142) is inserted into the groove and slidably connected to the arc-shaped side wall of the groove. A spring rod (143) is provided in the receiving groove. The ratchet teeth (144) are coaxially connected to the turntable (12). 144) is slidably arranged in the receiving groove and connected to the movable end of the spring rod (143), and the ratchet (144) is unidirectionally meshed with the ratchet (142); the body of the speed sensor is arranged on the rotating shaft A (141), and the speed sensor detects the rotation speed of the turntable (12) in the working state; the body of the motor (145) is connected to the box (1), and the output end of the motor (145) is connected to the rotating shaft A (141); the controller is arranged on the box (1), and the controller is electrically connected to the motor (145) and the speed sensor.

3. The sewage treatment device according to claim 1, characterized in that: The transmission mechanism comprises a transmission component A (15) and a transmission component B (18), wherein the transmission component A (15) is connected to the rotary disc (12) and the dry-wet separation mechanism, and the transmission component B (18) is connected to the rotary disc (12) and the crushing mechanism.

4. A sewage treatment device according to claim 3, characterized in that: The dry-wet separation mechanism comprises a separation filter cartridge (3), an auger (6), a slide rod (7), an extrusion plate (8), a permanent magnet (9) and an electromagnet (10); a feed hole (301) and a slag discharge hole (302) are respectively provided on both ends of the separation filter cartridge (3); a plurality of water seepage holes (303) are provided between the feed hole (301) and the slag discharge hole (302) on the separation filter cartridge (3); a feed hopper (4) is communicated with the feed hole (301); a discharge pipe (5) is provided on the outside of the slag discharge hole (302); and the auger (6) is provided on the separation filter cartridge. (3) and is coaxially rotatably connected thereto, the auger (6) is in sliding contact with the inner wall of the separation filter cartridge (3), the slide bar (7) is inserted into the separation filter cartridge (3) along the end away from the feed hopper (4) and is slidably connected thereto, the extrusion plate (8) is connected to the end of the slide bar (7) inserted into the separation filter cartridge (3), the permanent magnet (9) is arranged on the end of the extrusion plate (8) away from the feed hopper (4), the electromagnet (10) is arranged on the separation filter cartridge (3) and corresponds to the permanent magnet (9), and the magnetic poles of the end of the electromagnet (10) and the permanent magnet (9) are the same.

5. The sewage treatment device according to claim 4, characterized in that: The transmission assembly A (15) includes a rotating shaft B (151), a gear B (152), a bevel gear (153) and an inner gear ring (154). One end of the rotating shaft B (151) is inserted into the circular groove (103) and is rotatably connected to the housing (1). The gear B (152) is coaxially connected to the end of the rotating shaft B (151) inserted into the circular groove (103). The two bevel gears (153) are coaxially connected to the central axis of the auger (6) and the rotating shaft B (151), respectively. The two bevel gears (153) are meshed. The inner gear ring (154) is coaxially arranged at the bottom of the turntable (12) and meshed with the gear B (152).

6. The sewage treatment device according to claim 3, characterized in that: The crushing mechanism comprises two crushing rollers (11), both crushing rollers (11) are arranged in a feed hopper (4), a guide plate is obliquely arranged above the crushing rollers (11) in the feed hopper (4), and a gear A (111) is coaxially arranged at one end of the roller shafts of the two crushing rollers (11) extending out of the feed hopper (4), and the two gears A (111) are meshed and connected.

7. The sewage treatment device according to claim 6, characterized in that: The transmission assembly B (18) includes a coaxial connection, and the transmission assembly B (18) includes a positioning shaft, a pulley A, a pulley B, a toothed belt, a rotating shaft C (16), a bevel gear (17) and a bevel gear disc (112); the positioning shaft is coaxially arranged at the bottom of the rotating disc (12) and is rotationally connected to the box (1), the pulley A is coaxially connected to the positioning shaft, the rotating shaft C (16) is rotationally connected to the box (1), the pulley B is coaxially connected to the rotating shaft C (16), the pulley B is connected to the pulley C through a toothed belt transmission, the bevel gear (17) is coaxially connected to the rotating shaft C (16), the bevel gear disc (112) is coaxially connected to the roller shaft of one of the crushing rollers (11), and the bevel gear (17) is meshed with the bevel gear disc (112).

8. A sewage treatment method, using the sewage treatment equipment according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, sewage enters the circular trough (103) through the sewage pipe and the water inlet pipe (104) and enters the feed hopper (4) through the guide groove (102); S2. The flowing sewage pushes the push plate (13) and the turntable (12) to rotate, thereby driving the crushing mechanism and the dry-wet separation mechanism to operate. If the sewage flow is large, the turntable (12) rotates at a high speed, and the drive component (14) does not intervene. If the sewage flow is small, the turntable (12) rotates at a low speed, and the drive component (14) intervenes and drives the turntable (12) to rotate at a high speed. S3, the crushing mechanism first crushes the large-volume impurities mixed in the sewage, and then the sewage and small-volume impurities enter the dry-wet separation mechanism, which squeezes out the small-volume impurities and discharges them outside the box (1); S4. The sewage with larger volume of impurities removed is finely filtered through the filter (21) and discharged through the outlet pipe (2).

Images