CN112661294A

CN112661294A - Urban sewage recovery processing system

Info

Publication number: CN112661294A
Application number: CN202011206494.0A
Authority: CN
Inventors: 朱文卫
Original assignee: Shaoxing Zhongwei Environmental Construction Co ltd
Current assignee: Shaoxing Zhongwei Environmental Construction Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-04-16

Abstract

The invention discloses an urban sewage recovery treatment system which comprises a sewage collection pool, wherein the sewage collection pool is connected with a plurality of sewage pipes, and the urban sewage recovery treatment system is characterized in that a layering device is arranged in the sewage collection pool, the sewage collection pool is connected with a first water pump, the water pump is connected with a water pumping pipe, the water pumping pipe is connected with a particle separation pool, a solid-liquid separation device is arranged in the particle separation pool, the solid-liquid separation device is provided with a metal recovery device, the solid-liquid separation device is connected with a particle size separation box, the particle separation device is connected with a sedimentation tank, the sedimentation tank is connected with a drug treatment box, a stirring device is arranged in the drug treatment box, a drug quantitative feeding device is arranged in the drug treatment box, the drug treatment box is connected with. The system can separate various impurities in the municipal sewage and recycle the impurities.

Description

Urban sewage recovery processing system

Technical Field

The invention relates to the technical field of sewage treatment, in particular to an urban sewage recovery treatment system.

Background

With the continuous development of economy and the continuous construction of basic buildings, the urban area is larger and larger, and the contradiction between the environmental pollution and the economic development is larger and larger. The sewage that a city produced is very huge, directly discharges into the river and can produce a large amount of pollutions to natural environment, simultaneously along with the constantly enhancement of people's environmental protection consciousness, people more and more pay attention to the problem of discharging of the daily sewage in city, also have the resource that has the value of utilization in the municipal sewage, consequently need a device for municipal sewage purification, come to carry out purification treatment to municipal sewage.

Disclosure of Invention

The invention aims to provide a municipal sewage recovery and treatment system, which can separate and recycle various impurities in municipal sewage.

The technical purpose of the invention is realized by the following technical scheme:

a municipal sewage recovery treatment system comprises a sewage collecting tank which is connected with a plurality of sewage pipes, it is characterized in that a layering device is arranged in the sewage collecting tank, the sewage collecting tank is connected with a water pump, the water pump is connected with a water pumping pipe, the water pumping pipe is connected with a particle separation tank, a solid-liquid separation device is arranged in the particle separation tank, the solid-liquid separation device is provided with a metal recovery device and is connected with a particle size separation box, the particle separation tank is connected with a sedimentation tank, the sedimentation tank is connected with a drug treatment box, a stirring device is arranged in the drug treatment box, a medicine quantitative feeding device is arranged in the medicine processing box, the medicine processing box is connected with a chamber type filter press, the box-type filter press is connected with a water outlet pipe, and the box-type filter press is connected with a filter cake conveying device.

By adopting the technical scheme, a sewage pipe in a city is communicated with a sewage collecting tank, a large amount of sewage is collected by the sewage collecting tank, the sewage in the sewage collecting tank is divided into an upper layer and a lower layer by a layering device, impurities floating on the water surface are separated out, a water pump is started, the sewage in the sewage collecting tank enters a solid-liquid separation device in a particle separation tank through a water pumping pipe to separate solid particles in the sewage, the separated solid particles are further separated by a metal recovery device, metal in the solid particles is separated out, the separated solid particles pass through a particle size separation box to be separated into two parts with different sizes and particles, the particles are conveniently recycled after the sewage is kept still by a sedimentation tank for a period of time, the supernatant is introduced into a drug treatment box, and a certain amount of drug is put into the drug treatment box by a drug putting quantitative device, and starting the stirring device to accelerate the reaction efficiency of the medicine, harmonizing the pH of the solution, coagulating and precipitating the suspended matters, introducing into a chamber filter press, performing solid-liquid separation on the solution, pressing the solid into a filter cake by the chamber filter press, collecting separated clear water through a water outlet pipe, and conveying the filter cake to a specified position through a filter cake conveying device for treatment.

As preferred, the decker includes the rotation axis, two rotation axis difference swivelling joint is on the both sides of sewage collecting pit, rotation axis both ends fixedly connected with backup pad, fixedly connected with filter screen between the bracing piece, and the filter screen on both sides can level be even become a parting surface, divide into sewage collecting pit upper and lower two-layer, sewage collecting pit outer wall fixedly connected with rotating electrical machines, rotating electrical machines's output shaft and rotation axis fixed connection.

Adopt above-mentioned technical scheme, the rotating electrical machines can drive the rotation axis rotatory, and pass through the rotation that the bracing piece drove the filter screen by the rotation axis, the filter screen is when sewage is added to the sewer toward the sewage collecting pit, the rotating electrical machines drives the filter screen and is a vertical decurrent position, after the sewage of sewage collecting pit is filled with, a period of time stews, the plastics that the quality is light and wooden article will float on the surface of water, restart rotating electrical machines drives the filter screen and is a horizontally state, at this moment, the filter screen on both sides is on same water flat line, and there is not the gap, make the filter screen on both sides come out with showy impurity separation.

Preferably, the solid-liquid separation device comprises a net barrel, the inner wall of the particle separation pool is fixed to one end of the net barrel, the other end of the net barrel penetrates through the particle separation pool, a rotating shaft is arranged in the net barrel, spiral blades are fixedly connected to the outer peripheral wall of the rotating shaft, bristles are fixedly connected to the outer peripheral wall of each spiral blade, a first motor is fixedly connected to the side wall of the particle separation pool, an output shaft of the first motor is fixedly connected with the rotating shaft, a feed inlet is formed in one end, close to the motor, of the net barrel, the feed inlet is connected with a water pumping pipe, and a discharge outlet is formed in one end.

Adopt above-mentioned technical scheme, in sewage entered into the net section of thick bamboo through the feed inlet, the net section of thick bamboo was lived the solid interception of large granule, and remaining hole through the net section of thick bamboo gets into the below, starter motor one, and the motor drives the rotation of spiral shaft and helical blade, and helical blade is with the forward promotion of the large granule solid in the net section of thick bamboo, shifts out the particle separation pond and come out through the discharge gate to the brush hair is incessantly scrubbed the net section of thick bamboo under helical blade's drive, prevents that the through-hole on the net section of thick bamboo from being plugged.

As preferred, be equipped with sieve plate frame, colating sieve plate, essence filtering sieve plate and vibrating motor in the particle size separator box, particle size separator box upper end is equipped with the import, the import is connected with the discharge gate of a net section of thick bamboo, vibrating motor is fixed in sieve plate frame's upper end, colating sieve plate and essence filtering sieve plate are fixed in sieve plate frame's centre, and colating sieve plate is located essence filtering sieve plate top, and vibrating motor enables sieve plate frame and vibrates in particle size separator box, colating sieve plate and essence filtering sieve plate slope sets up, and keeps away from one side slope of import downwards, the both sides fixedly connected with slag trap of colating sieve plate and essence filtering sieve plate, particle size separator box's both sides inner wall is provided with a plurality of mount pads, and the upper end of mount pad is provided with the spring, the outside of sieve plate frame is provided with a plurality of mount pads, and the mount pad is fixed, the particle size separation box is characterized in that a flexible connecting pipe is arranged outside the spring, the upper end and the lower end of the flexible connecting pipe are respectively fixed on the mounting seat and the mounting block, the particle size separation box is provided with two channels, the channels are respectively aligned to the coarse filtration sieve plate and the fine filtration sieve plate, and the lower ends of the channels are respectively provided with a collection box.

By adopting the technical scheme, the solid-liquid separation device enters the inlet of the particle size separation box through the discharge port, the solid which is separated out firstly falls on the rough filter sieve plate, the solid with large particle size is blocked, the solid with small particle size is blocked by the fine filter sieve plate below, finally the sewage attached to the solid falls to the bottom of the particle size separation box and is transported back to the pipeline connection particle separation tank again from the pipeline, the vibrating motor drives the sieve plate frame to vibrate, the rough filter sieve plate and the fine filter sieve plate can respectively screen and filter large particle impurities and small particle impurities contained in the urban sewage, the slag blocking plate can prevent the impurities in the sewage from falling into the waste liquid collecting box below from the two sides of the rough filter sieve plate and the fine filter sieve plate, the sieve plate frame can expand and contract together with the flexible connecting pipe when vibrating, meanwhile, the flexible connecting pipe can play a role in protecting the spring, and prevent the spring from directly contacting with the sewage to corrode the spring, simultaneously also prevent impurity card in the sewage in the spring and influence the elasticity of spring, spring shrinkage deformation when receiving external load stores the deformability, and the spring can release the deformability of storing when the reconversion to make the installation piece can carry out the vibration of law better on the mount pad under vibrating motor's drive.

Preferably, the metal recovery device comprises a plurality of electromagnets embedded in the spiral blade.

By adopting the technical scheme, the electromagnet is electrified to adsorb metal in the mesh drum, after solid particles in the mesh drum are moved out, the electromagnet is powered off, metal impurities fall off, and the spiral blade pushes the metal out of the discharge hole to collect the metal in a classified manner.

Preferably, the medicine quantitative feeding device comprises a medicine storage cavity, a medicine outlet is formed below the medicine storage cavity, a through hole is formed below the medicine outlet, a cylinder is arranged in the through hole, a storage groove is formed in the cylinder middle part, the storage groove is communicated with the upper portion and the lower portion, an electric telescopic rod is fixedly connected to the side wall of the medicine processing box, and the electric telescopic rod is fixedly connected with the cylinder.

Adopt above-mentioned technical scheme, the medicine that the chamber was deposited to the medicine placed needs to be put in, the cylinder plugs up out the medicine mouth at ordinary times, electric telescopic handle drives the cylinder and retreats when needing to put in the medicine, aim at out the medicine mouth with the storage tank in the cylinder, the medicine gets into the storage tank through going out the medicine mouth and fills up it, fill up the extension of back electric telescopic handle, stretch into the medicine with cylindrical storage tank and handle the case, make in the medicine of storage tank fall into the sewage of medicine processing case, this is that the cylinder still plugs up out the medicine mouth, put in quantitative medicine.

Preferably, the stirring device comprises a stirring motor, an output shaft of the stirring motor is fixedly connected with a stirring rod, one end of the stirring rod, which is far away from the stirring motor, is fixedly connected with a mounting ring, the mounting ring is provided with a plurality of flap stirring pieces, the flap stirring pieces are arranged around the mounting ring at intervals, and one ends of the flap stirring pieces are hinged to the mounting ring.

Adopt above-mentioned technical scheme, sewage is at the medicine treatment incasement with the liquid medicine reaction, agitator motor makes through the installation zone move the flap stirring piece and stir the liquid wherein at the medicine treatment incasement rotatoryly, makes it carry out more abundant reaction, flap stirring piece enables the material and handles pond circulation flow in the waste liquid when stirring liquid, and flap stirring piece has the shearing action less, turns over the effectual characteristics of rising from top to bottom.

Preferably, the filter cake conveyer includes the belt, the belt both ends are equipped with the band pulley, the band pulley is connected with driving motor, a plurality of dogs of fixedly connected with on the belt.

Adopt above-mentioned technical scheme, driving motor drives the band pulley rotation, and the band pulley drives the belt motion, and the filter cake of filter press extrusion is transported the assigned position to the belt, and the dog prevents that the filter cake from skidding in the transportation, improves conveying efficiency.

Drawings

FIG. 1 is a block diagram of one embodiment of the invention;

FIG. 2 is a top view of the inventive effluent collection sump;

FIG. 3 is a sectional view of the structure of the particle separation tank of the invention;

FIG. 4 is a sectional view of the structure of the particle size separation chamber of the present invention;

FIG. 5 is a side cross-sectional view of the inventive medication processing case;

FIG. 6 is a cross-sectional structural view of the inventive cake transport device.

Reference numerals: 1. a sewage collection tank; 2. a sewage pipe; 3. a layering device; 4. a water pump; 5. a water pumping pipe; 6. a particle separation tank; 7. a particle size separation box; 8. a sedimentation tank; 9. a drug treatment tank; 10. a chamber filter press; 11. a filter cake transport device; 12. a rotating shaft; 13. a support plate; 14. a filter screen; 15. a rotating electric machine; 16. a solid-liquid separation device; 17. a net drum; 18. rotating the shaft; 19. a helical blade; 20. brushing; 21. a first motor; 22. a feed inlet; 23. a discharge port; 24. an inlet; 25. a vibration motor; 26. a sieve plate frame; 27. coarse filtering the sieve plate; 28. fine filtering sieve plate; 29. a slag trap; 30. mounting blocks; 31. a mounting seat; 32. a spring; 33. a flexible connection pipe; 34. a channel; 35. a collection box; 36. a metal recovery device; 37. an electromagnet; 38. a drug dosing device; 39. a medication holding chamber; 40. a medicine outlet; 41. a through hole; 42. a cylinder; 43. a storage tank; 44. an electric telescopic rod; 45. a stirring device; 46. a stirring motor; 47. a stirring rod; 48. a mounting ring; 49. a flap stirring blade; 50. a pulley; 51. a belt; 52. a stopper; 53. the motor is driven.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.

Referring to fig. 1 to 6, a municipal sewage recycling system comprises a sewage collecting tank 1, the sewage collecting tank 1 is connected with a plurality of sewage pipes 2, a layering device 3 is arranged in the sewage collecting tank 1, the layering device 3 comprises a rotating shaft 12, two rotating shafts 12 are respectively and rotatably connected with two sides of the sewage collecting tank 1, supporting plates 13 are fixedly connected with two ends of the rotating shaft 12, a filter screen 14 is fixedly connected between the supporting plates, the filter screens 14 at two sides can be horizontally connected into a separating surface, the sewage collecting tank 1 is divided into an upper layer and a lower layer, a rotating motor 15 is fixedly connected with the outer wall of the sewage collecting tank 1, an output shaft of the rotating motor 15 is fixedly connected with the rotating shaft 12, the rotating motor 15 can drive the rotating shaft 12 to rotate, the rotating shaft 12 drives the filter screen 14 to rotate through the supporting rods, the filter screen 14 adds sewage into the sewage collecting tank, rotating electrical machines 15 drives filter screen 14 and is a vertical decurrent position, and after the sewage of sewage collecting pit 1 was filled up, a period of time of stewing, the light plastics of quality and wooden article will float on the surface of water, and restart rotating electrical machines 15 drives filter screen 14 and is a horizontally state, and at this moment the filter screen 14 on both sides is on same water flat line to there is not the gap, makes the filter screen 14 on both sides come out with showy impurity separation.

The sewage collecting tank 1 is connected with a water pump 4, the water pump 4 is connected with a water pumping pipe 5, the water pumping pipe 5 is connected with a particle separating tank 6, a solid-liquid separating device 16 is arranged in the particle separating tank 6, the solid-liquid separating device 16 comprises a net barrel 17, one end of the net barrel 17 is fixed on the inner wall of the particle separating tank 6, the other end of the net barrel passes through the particle separating tank 6, a rotary shaft 18 is arranged in the net barrel 17, the peripheral wall of the rotary shaft 18 is fixedly connected with a helical blade 19, the peripheral wall of the helical blade 19 is fixedly connected with bristles 20, the side wall of the particle separating tank 6 is fixedly connected with a motor 21, the output shaft of the motor 21 is fixedly connected with the rotary shaft 18, one end of the net barrel 17 close to the motor is provided with a feed inlet 22, the feed inlet 22 is connected with the water pumping pipe 5, one end of the net barrel, the rest holes passing through the net barrel 17 enter the lower part, a first motor 21 is started, the first motor 21 drives the rotary shaft 18 and the spiral blade 19 to rotate, the spiral blade 19 pushes large granular solids in the net barrel 17 forwards, the large granular solids are moved out of the particle separation tank 6 and come out through the discharge hole 23, the brush bristles 20 are driven by the spiral blade 19 to brush the net barrel 17 ceaselessly, the through holes 41 in the net barrel 17 are prevented from being blocked, a metal recovery device 36 is arranged in the spiral blade 19, the metal recovery device 36 comprises a plurality of electromagnets 37, the electromagnets 37 are embedded in the spiral blade 19, the electromagnets 37 are electrified to adsorb the metals in the net barrel, after the solid granules in the net barrel 17 are moved out, the electromagnets 37 are powered off, metal impurities fall off, and the spiral blade 19 pushes the metals out of the discharge hole 23 to collect the metals in a classified mode.

A discharge port 23 of the solid-liquid separation device 16 is connected with a particle size separation box 7, a sieve plate frame 26, a rough filter sieve plate 27, a fine filter sieve plate 28 and a vibration motor 25 are arranged in the particle size separation box 7, an inlet 24 is arranged at the upper end of the particle size separation box 7, the inlet 24 is connected with the discharge port 23 of the screen cylinder 17, the vibration motor 25 is fixed at the upper end of the sieve plate frame 26, the rough filter sieve plate 27 and the fine filter sieve plate 28 are fixed in the middle of the sieve plate frame 26, the rough filter sieve plate 27 is positioned above the fine filter sieve plate 28, the vibration motor 25 can make the sieve plate frame 26 vibrate in the particle size separation box 7 to promote the filtering efficiency of the rough filter sieve plate 27 and the fine filter sieve plate 28, the rough filter sieve plate 27 and the fine filter sieve plate 28 are obliquely arranged, one side far away from the inlet 24 is obliquely downward, two sides of the rough filter sieve plate 27 and the fine filter sieve plate 28 are fixedly connected with slag baffles 29, the slag baffles 29 can prevent impurities in sewage from falling into a, the inner walls of two sides of the particle size separation box 7 are provided with a plurality of mounting seats 31, the upper ends of the mounting seats 31 are provided with springs 32, the outer side of the sieve plate frame 26 is provided with a plurality of mounting blocks 30, the mounting blocks 30 are fixed at the upper ends of the springs 32, the outer parts of the springs 32 are provided with flexible connecting pipes 33, the upper ends and the lower ends of the flexible connecting pipes 33 are respectively fixed on the mounting seats 31 and the mounting blocks 30, when the sieve plate frame 26 vibrates, the springs 32 and the flexible connecting pipes 33 extend and retract together, meanwhile, the flexible connecting pipes 33 can protect the springs 32, the springs 32 and sewage are prevented from being directly contacted to corrode the springs 32, impurities in the sewage are prevented from being blocked in the springs 32 to influence the elasticity of the springs 32, the particle size separation box 7 is provided with two channels 34, the channels 34 are respectively aligned with the coarse filter sieve plate 27 and the fine filter sieve plate 28, the lower ends of the channels 34 are respectively provided with collecting boxes 35, solids on, then enters different collecting boxes 35 through a channel 34 for collection, the solid-liquid separation device 16 enables the separated solid to enter an inlet 24 of the particle size separation box 7 through a discharge port 23, the solid firstly falls on a rough filter sieve plate 27, the solid with large particle size is blocked, the solid with small particle size is blocked by a fine filter sieve plate 28 below, and finally the sewage attached to the solid falls to the bottom of the particle size separation box 7.

The particle separation device is connected with a sedimentation tank 8, the sedimentation tank 8 is connected with a drug treatment box 9, a stirring device 45 is arranged in the drug treatment box 9, the stirring device 45 comprises a stirring motor 46, an output shaft of the stirring motor 46 is fixedly connected with a stirring rod 47, one end of the stirring rod 47, which is far away from the stirring motor 46, is fixedly connected with a mounting ring 48, the mounting ring 48 is provided with a flap stirring sheet 49, a plurality of flap stirring sheets 49 are arranged around the mounting ring 48 at intervals, one end of the flap stirring sheet 49 is hinged on the mounting ring 48, when sewage reacts with liquid medicine in the drug treatment box 9, the stirring motor 46 drives the flap stirring sheet 49 to rotate in the drug treatment box 9 through the mounting ring 48 to stir the liquid in the drug treatment box 9, so that the flap stirring sheet can perform more sufficient reaction, when stirring the flap stirring sheet 49 is used for stirring the liquid, the material can circularly flow in the waste liquid treatment box, and the flap stirring sheet 49 has, the upper and lower churning effect is good.

A medicine quantitative feeding device 38 is arranged in the medicine processing box 9, the medicine quantitative feeding device 38 comprises a medicine storage cavity 39, a medicine outlet 40 is arranged below the medicine storage cavity 39, a through hole 41 is arranged below the medicine outlet 40, a cylinder 42 is arranged in the through hole 41, a storage groove 43 is arranged in the cylinder 42, the storage groove 43 is communicated up and down, an electric telescopic rod 44 is fixedly connected with the side wall of the medicine processing box 9, the electric telescopic rod 44 is fixedly connected with the cylinder 42, the medicine to be fed is placed in the medicine storage cavity 39, the cylinder 42 normally plugs the medicine outlet 40, the electric telescopic rod 44 drives the cylinder 42 to retreat when the medicine is needed to be fed, the storage groove 43 in the cylinder 42 is aligned with the medicine outlet 40, the medicine enters the storage groove 43 through the medicine outlet 40 to be filled, the electric telescopic rod 44 extends after the medicine is filled, the storage groove 43 of the cylinder 42 extends into the medicine processing box 9, so that the medicine in the storage groove 43 falls into the sewage, this means that the column 42 still blocks the outlet 40 and a predetermined amount of medicine is dispensed.

The medicine treatment box 9 is connected with the box-type filter press 10, the box-type filter press 10 is connected with the outlet pipe, the box-type filter press 10 is connected with the filter cake conveyer 11, the filter cake conveyer 11 includes belt 51, belt 51 both ends are equipped with band pulley 50, band pulley 50 is connected with driving motor, a plurality of dogs 52 of fixedly connected with on the belt 51, driving motor drives band pulley 50 rotatory, band pulley 50 drives belt 51 motion, belt 51 transports the assigned position with the filter cake of filter press extrusion, dog 52 prevents that the filter cake from skidding in the transportation, and the transportation efficiency is improved.

The working principle of the invention is as follows: the urban sewage pipe 2 is communicated with the sewage collecting tank 1, a large amount of sewage is collected by the sewage collecting tank 1, a rotating motor 15 is started to drive filter screens 14 at two sides, the sewage in the sewage collecting tank 1 is divided into an upper layer and a lower layer, impurities floating on the water surface are separated, a water pump 4 is started, the sewage in the sewage collecting tank 1 enters a feed inlet 22 of a solid-liquid separation device 16 in a particle separation tank 6 through a water pumping pipe 5, solid particles in the sewage are separated through a net cylinder 17, a first motor 21 is started to drive a helical blade 19 to convey the solids to a particle size separation tank 7, an electromagnet 37 in the helical blade 19 is electrified when the helical blade 19 moves, metal in the solids is adsorbed, after other solids are conveyed, the electromagnet 37 is powered off, the metal is conveyed out, the separated solids pass through the particle size separation tank 7 to divide the particles into two parts with different sizes, recycle after convenient, standing sewage for a period of time through sedimentation tank 8, let in the clear solution on upper strata the medicine processing case 9, start electric telescopic handle 44 and drive cylinder 42 and put a certain amount of medicine into medicine processing case 9, restart agitator motor 46 and accelerate the reaction efficiency of medicine, harmonize the PH of solution, and condense the suspended solid and deposit, rethread chamber filter press 10, with its solid-liquid separation, chamber filter press 10 presses the solid into the filter cake, the clear water of isolating passes through the outlet pipe and collects, the filter cake is transported to the assigned position through filter cake conveyer 11 and is handled.

Claims

1. The urban sewage recycling and treating system comprises a sewage collecting tank (1), wherein the sewage collecting tank (1) is connected with a plurality of sewage pipes (2), and is characterized in that a layering device (3) is arranged in the sewage collecting tank (1), the sewage collecting tank (1) is connected with a water pump (4), the water pump (4) is connected with a water pumping pipe (5), the water pumping pipe (5) is connected with a particle separating tank (6), a solid-liquid separating device (16) is arranged in the particle separating tank (6), the solid-liquid separating device (16) is provided with a metal recycling device (36), the solid-liquid separating device (16) is connected with a particle size separating box (7), the particle separating tank (6) is connected with a sedimentation tank (8), the sedimentation tank (8) is connected with a drug treatment box (9), and a stirring device (45) is arranged in the drug treatment box (9), the device is characterized in that a quantitative drug feeding device (38) is arranged in the drug treatment box (9), the drug treatment box (9) is connected with a chamber filter press (10), the chamber filter press (10) is connected with a water outlet pipe, and the chamber filter press (10) is connected with a filter cake conveying device (11).

2. The municipal sewage recovery and treatment system according to claim 1, wherein the layering device (3) comprises two rotating shafts (12), the two rotating shafts (12) are respectively and rotatably connected to two sides of the sewage collection tank (1), supporting plates (13) are fixedly connected to two ends of each rotating shaft (12), filter screens (14) are fixedly connected between the supporting rods, the filter screens (14) on the two sides can be horizontally connected to form a separating surface, the sewage collection tank (1) is divided into an upper layer and a lower layer, a rotating motor (15) is fixedly connected to the outer wall of the sewage collection tank (1), and an output shaft of the rotating motor (15) is fixedly connected with the rotating shafts (18) (12).

3. The municipal sewage recovery processing system according to claim 2, the solid-liquid separation device (16) comprises a mesh cylinder (17), one end of the mesh cylinder (17) is fixed on the inner wall of the particle separation tank (6), the other end of the net cylinder (17) penetrates through the particle separation tank (6), a rotating shaft (18) is arranged in the net cylinder (17), the peripheral wall of the rotating shaft (18) is fixedly connected with a helical blade (19), the peripheral wall of the helical blade (19) is fixedly connected with bristles (20), the side wall of the particle separation tank (6) is fixedly connected with a motor I (21), the output shaft of the motor I (21) is fixedly connected with a rotating shaft (18), one end of the net cylinder (17) close to the motor is provided with a feed inlet (22), the feed inlet (22) is connected with a water pumping pipe (5), and a discharge outlet (23) is arranged at one end of the net cylinder (17) penetrating out of the particle separation tank (6).

4. The municipal sewage recovery and treatment system according to claim 3, wherein a sieve plate frame (26), a coarse filter sieve plate (27), a fine filter sieve plate (28) and a vibration motor (25) are provided in the particle size separation tank (7), an inlet (24) is provided at the upper end of the particle size separation tank (7), the inlet (24) is connected with a discharge port (23) of a mesh cylinder (17), the vibration motor (25) is fixed at the upper end of the sieve plate frame (26), the coarse filter sieve plate (27) and the fine filter sieve plate (28) are fixed in the middle of the sieve plate frame (26), the coarse filter sieve plate (27) is located above the fine filter sieve plate (28), the vibration motor (25) can vibrate the sieve plate frame (26) in the particle size separation tank (7), the coarse filter sieve plate (27) and the fine filter sieve plate (28) are obliquely arranged, and one side far away from the inlet (24) is obliquely downward, both sides fixedly connected with skimming plate (29) of sieve board (28) are strained to coarse filtration sieve board (27) and essence, the both sides inner wall of granule size separator box (7) is provided with a plurality of mount pads (31), and the upper end of mount pad (31) is provided with spring (32), the outside of sieve board frame (26) is provided with a plurality of installation pieces (30), and installation piece (30) are fixed in the upper end of spring (32), be provided with flexible coupling pipe (33) outside spring (32), the upper and lower both ends of flexible coupling pipe (33) are fixed in respectively on mount pad (31) and installation piece (30), granule size separator box (7) are equipped with two passageways (34), coarse filtration sieve board (27) and essence sieve board (28) are aimed at respectively in passageway (34), passageway (34) lower extreme is equipped with collecting box (35) respectively.

5. A municipal sewage treatment system according to claim 4, wherein said metal recovery device (36) comprises a plurality of electromagnets (37), said electromagnets (37) being embedded in the helical blades (19).

6. The municipal sewage recovery and treatment system according to claim 5, wherein the quantitative drug feeding device (38) comprises a drug storage cavity (39), a drug outlet (40) is arranged below the drug storage cavity (39), a through hole (41) is arranged below the drug outlet (40), a cylinder (42) is arranged in the through hole (41), a storage groove (43) is formed in the middle part of the cylinder (42), the storage groove (43) is communicated with each other up and down, an electric telescopic rod (44) is fixedly connected to the side wall of the drug treatment tank (9), and the electric telescopic rod (44) is fixedly connected with the cylinder (42).

7. The municipal sewage recovery and treatment system according to claim 6, wherein the stirring device (45) comprises a stirring motor (46), an output shaft of the stirring motor (46) is fixedly connected with a stirring rod (47), one end of the stirring rod (47) far away from the stirring motor (46) is fixedly connected with a mounting ring (48), the mounting ring (48) is provided with a plurality of flap stirring blades (49), a plurality of flap stirring blades (49) are arranged around the mounting ring (48) at intervals, and one end of each flap stirring blade (49) is hinged to the mounting ring (48).

8. The municipal sewage recovery and treatment system according to claim 7, wherein the filter cake conveying device (11) comprises a belt (51), belt pulleys (50) are disposed at two ends of the belt (51), the belt pulleys (50) are connected with a driving motor (53), and a plurality of blocks (52) are fixedly connected to the belt (51).