CN112707620B

CN112707620B - Sludge treatment system

Info

Publication number: CN112707620B
Application number: CN202110058527.XA
Authority: CN
Inventors: 何春江
Original assignee: Ningbo Mingzhou Thermal Power Co ltd
Current assignee: Ningbo Mingzhou Thermal Power Co ltd
Priority date: 2021-01-16
Filing date: 2021-01-16
Publication date: 2022-12-27
Anticipated expiration: 2041-01-16
Also published as: CN112707620A

Abstract

The application relates to a sludge treatment system, and belongs to the technical field of waste treatment. It includes drainage mechanism, mud storehouse and sets up in the feed mechanism of mud storehouse one side, the mud storehouse is provided with the feed inlet, feed mechanism includes that filtration fill and drive filter the upset of fighting and carry the drive assembly that mud got into the mud storehouse, drainage mechanism includes drainage box, mud conveying pipe and backward flow box, mud conveying pipe one end with drainage box lower part intercommunication, the mud conveying pipe other end is located backward flow box upside, the filtration fill is located when the below is located mud conveying pipe keeps away from drainage box one end with between the backward flow box. This application has can tentatively reduce the effect of water content in the mud before burning.

Description

Sludge treatment system

Technical Field

The application relates to the field of waste treatment, in particular to a sludge treatment system.

Background

With the development of industrialization and the acceleration of urbanization, the sludge production capacity of sewage treatment equipment is rapidly increased, and with the rise of environmental protection concepts, sludge needs to be treated by a sludge treatment system to reduce pollution.

Because the sludge is mainly separated from the sewage, the water content of the sludge is often higher, the heat value is low, if the sludge with higher water content is directly incinerated, the time is often longer, and more energy is consumed.

In view of the above-mentioned related art, the inventors considered that the existing sludge treatment system has a poor effect on treating sludge having a high water content.

Disclosure of Invention

In order to improve the treatment effect of sludge treatment system to the higher mud of water content, this application provides a sludge treatment system.

The application provides a sludge treatment system adopts following technical scheme:

the utility model provides a sludge treatment system, includes drainage mechanism, mud storehouse and sets up in the feed mechanism of mud storehouse one side, the mud storehouse is provided with the feed inlet, feed mechanism includes that filtration fill and drive filter the upset of fighting and carry the drive assembly that mud got into the mud storehouse, drainage mechanism is including straining water box, defeated mud pipe and backward flow box, defeated mud pipe one end with drainage box lower part intercommunication, the defeated mud pipe other end is located backward flow box upside, the filtration fill is located when the below is located defeated mud pipe is kept away from drainage box one end with between the backward flow box.

Through adopting above-mentioned technical scheme, carry out preliminary sediment through water filtering mechanism to mud and filter, through defeated mud pipe in the mud input that the drainage box sediment got off falls the filter hopper, through drive assembly to filter the hopper and carry the feed inlet department in mud storehouse, through the upset filter hopper, send mud into the mud storehouse, at the in-process that feed mechanism sent mud into the mud storehouse, receive the mud of this in-process defeated mud pipe output through the reflux box.

Optionally, the drive assembly includes the frame, moves up actuating cylinder, moves up the platform, upset rocking arm and upset actuating cylinder, it move up the vertical sliding of platform install in the frame, it drives to move up actuating cylinder move up the platform and be in vertical reciprocal sliding in the frame, it is provided with the erection column to move up on the platform, upset rocking arm one end with the erection column rotates to be connected, the filter hopper is fixed in the upset rocking arm is kept away from the one end of erection column, the upset actuating cylinder be located the filter hopper with between the erection column and the piston with the upset rocking arm rotates to be connected.

Through adopting above-mentioned technical scheme, shift up the platform through shifting up drive cylinder drive and shift up, filter the fill at this in-process and move along with the platform that shifts up, filter the fill upset through the upset drive cylinder drive, send mud into the sludge warehouse, the height in elevating system adaptation sludge warehouse falls into two processes lifting and upset for the in-process that mud was sent into the sludge warehouse is steady more and is difficult to reveal.

Optionally, the side wall of the filter hopper facing the reflux box is a cambered surface and is provided with water absorption sponge, and the side wall of the filter hopper provided with the water absorption sponge is provided with a water discharge gap.

Through adopting above-mentioned technical scheme, through drainage gap discharge sewage, through better suction sewage in the sponge follow gap that absorbs water, hinder mud simultaneously and flow out from the gap, the cooperation rises the process that the mechanism drove the filter hopper and rises for mud has sufficient time in filtering the fill and filters, further filters out the sewage in the mud, reduces the moisture content of mud.

Optionally, a butt column is vertically arranged in the backflow box, the side wall of the butt column, which faces the filter hopper, is an arc surface, and a circle of water guide channel for receiving sewage is arranged on the side wall of the butt column.

Through adopting above-mentioned technical scheme, through set up the butt post in the backward flow box, on the one hand, fight to filter and support, mud flows in more and more in the filter fill, filter when fighting weight when more and more high, better stability that keeps the filter fill, on the other hand, filter and fight when returning the bottom position, extrude the sponge that absorbs water through the butt post, thereby extrude the sewage in the sponge that absorbs water, be favorable to the sponge that absorbs water at the ascending in-process of filter fill every time, can both be better fight to filter and inhale sewage operation, before filter and fight and rise, the sponge that absorbs water is in compression state under the butt of butt post, when filter and fight and rise, the sponge recovery state that absorbs water, a ripples sewage absorbs water that is faster at this in-process.

Optionally, the upper part of the water-absorbing sponge is positioned in the filter hopper.

Through adopting above-mentioned technical scheme, the sponge part that absorbs water is located the filter hopper, and the better mud to the filter hopper carries out the suction of sewage, simultaneously because the siphon effect of sewage in the sponge that absorbs water, the sponge absorbing moisture that absorbs water shifts under the action of gravity, is favorable to the water content of better reduction mud.

Optionally, the drainage subassembly still includes sewage and receives box, transport link joint, initiative running roller, driven running roller, extrusion running roller and the rotatory motor of drive initiative running roller, carry the link joint suit in initiative running roller with driven running roller, the initiative running roller drives carry the link joint around initiative running roller with driven running roller motion, be provided with the sponge on the transport link joint, sewage is received the box and is located drainage box one side, carry the link joint part to be located in the drainage box, carry the link joint part to be located sewage is received the box upside and is set up the extrusion running roller, the extrusion running roller extrusion the sponge.

Through adopting above-mentioned technical scheme, drive through the initiative running roller and carry the link joint motion, carry the link joint to drive the sponge and move together, the sponge passes through in the time of in the drainage box from mud, through the moisture suction of sponge in to mud, because drainage box itself has the settlement function to mud, moisture mainly concentrates on the upper strata, make the sponge can effectually absorb sewage from mud, when carrying the link joint to drive the sponge and receive the box through sewage, extrude the sponge through the squeeze roll wheel, extrude the sewage in the sponge, the sewage of extruding is instiled into sewage and is received the box, on the one hand, accomplish the precipitation of mud in the drainage box, on the other hand, collect the sewage of suction, the convenience is further handled sewage, and pollution is reduced.

Optionally, there are two driven rollers, two driven rollers are separately arranged up and down, and one driven roller is located in the water filtering box, the conveying chain plate is driven by the driving roller to pass through the driven rollers, then pass through the driving roller and then return to the water filtering box.

By adopting the technical scheme, the sponge needs to go through a section of ascending process after absorbing sewage, and in the process, the sludge on the conveying chain plate and the sponge can better flow back into the water filtering box, so that the amount of the sludge brought out is reduced.

Optionally, a rubber protecting sleeve is arranged on the conveying chain plate, the rubber protecting sleeves are arranged on two sides of the sponge, and a limiting flanging for limiting the sponge to fall off is arranged on the rubber protecting sleeves.

Through adopting above-mentioned technical scheme, on the one hand, through the fixed sponge that rubber lag can be better, on the other hand, the extrusion running roller is when extrudeing the sponge, and the extrusion running roller can be even rubber lag and extrude together, and the condition that extrusion running roller and rubber lag interfere is difficult to appear, reduces the required precision of equipment.

Optionally, eccentric wheels are arranged at two ends of the driven roller wheel.

Through adopting above-mentioned technical scheme, drive through two eccentric wheels and carry chain joint both sides shake in turn, better shake off the mud on carrying chain joint and the sponge.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sludge is subjected to preliminary precipitation filtration by the filtering water mechanism, the sludge precipitated by the filtering water box is input into the filtering hopper through the sludge conveying pipe, the filtering hopper is conveyed to the feed inlet of the sludge bin through the driving component, the sludge is conveyed into the sludge bin by turning over the filtering hopper, and the sludge output by the sludge conveying pipe in the process is received by the backflow box in the process of conveying the sludge into the sludge bin by the feeding mechanism;

2. sewage is discharged through the drainage gap, the sewage is better sucked out of the gap through the water-absorbing sponge, meanwhile, the sludge is prevented from flowing out of the gap, and the process that the filter hopper is driven to ascend by the aid of the ascending mechanism is matched, so that the sludge has sufficient time in the filter hopper to be filtered, the sewage in the sludge is further filtered, and the moisture content of the sludge is reduced;

3. through set up the butt post in the backward flow box, on the one hand, support filtering hopper, mud flows into more and more in filtering hopper, when filtering hopper weight is higher and higher, better stability that keeps filtering hopper, on the other hand, filtering hopper when returning the bottom position, extrude the sponge that absorbs water through the butt post, thereby extrude the sewage in the sponge that absorbs water, be favorable to the sponge that absorbs water at the ascending in-process of filtering hopper at every turn, can both be better to filtering hopper carry out the sewage absorption operation, before filtering hopper rises, the sponge that absorbs water is in compression state under the butt of butt post, when filtering hopper rises, the sponge recovery state that absorbs water, the quick ripples sewage that absorbs water of this in-process.

Drawings

FIG. 1 is a system diagram of an embodiment of the present application;

FIG. 2 is a schematic view of the structure of a sludge input device and a sludge bin;

FIG. 3 is a schematic structural view of a feeding mechanism and a sludge silo;

FIG. 4 is a schematic structural view of the filter funnel in a sponge-removed state;

FIG. 5 is a cross-sectional view of the filter bowl;

FIG. 6 is a schematic view of the mounting arrangement of the components on the upper moving platform;

FIG. 7 is a schematic diagram of the input device;

FIG. 8 is a schematic structural view of a circulating water absorbing assembly;

FIG. 9 is a schematic structural view of the circulating water absorption assembly after the conveying chain plate is removed;

fig. 10 is a schematic structural view of a conveying chain plate;

FIG. 11 is a schematic structural view of a feeding mechanism, a sludge bin and a return box;

fig. 12 is a schematic structural view of the reflow box.

Description of the reference numerals: 11. an input device; 12. a sludge bin; 121. a feed inlet; 13. a drying machine; 14. an exhaust gas pipeline; 141. a tail gas fan; 142. a dust remover; 143. a condenser; 15. a ventilation duct; 151. a ventilation fan; 16. a sludge incinerator; 161. an inlet of a primary air fan; 162. an inlet of a secondary fan; 17. a scraper machine; 2. a filter hopper; 21. a water discharge gap; 22. a water-absorbing sponge; 23. a water absorption notch; 24. a protective shell; 241. a fixing hole; 25. fixing the column; 26. a guide housing; 31. a frame; 311. a base plate; 312. a vertical guide rod; 313. a connecting rod; 32. an upward moving driving oil cylinder; 33. moving the platform upwards; 34. turning over the rocker arm; 341. a kidney-shaped hole; 342. a yoke; 35. turning over the driving oil cylinder; 351. a rotating shaft; 36. mounting a column; 41. a water filtering box; 42. a mud conveying pipe; 43. a return flow box; 431. a butting post; 432. a water guide channel; 44. a return pipe; 45. a sewage receiving box; 51. a mounting frame; 52. conveying chain plates; 521. a chain; 53. a driving roller; 531. a gear; 54. a driven roller; 541. an eccentric wheel; 55. extruding a roller; 56. a motor; 57. a sponge; 58. a rubber protective sleeve; 581. limiting and flanging; 6. sludge screw pump.

Detailed Description

The present application is described in further detail below with reference to figures 1-12.

The embodiment of the application discloses a sludge treatment system. Referring to fig. 1, a sludge treatment system comprises a sludge input device 11, a sludge bin 12, a dryer 13, a scraper 17, a dust remover 142, a condenser 143, a tail gas pipeline 14, a tail gas fan 141, a ventilation pipeline 15, a ventilation fan 151 and a sludge incinerator 16, wherein sludge is stored in the sludge bin 12, the sludge in the sludge bin 12 is divided into two paths and respectively flows into the dryer 13 for dehydration or directly enters the sludge incinerator 16 for incineration, and the sludge dehydrated by the dryer 13 is transported by the scraper 17 and finally sent into the sludge incinerator 16.

Wherein, the path that the sludge bin 12 is directly sent into the sludge incinerator 16 to be processed is used as an additional path, when the sludge amount output by the drier 13 is less than the incineration treatment amount of the sludge incinerator 16, the path is started, although the energy consumption of the sludge incinerator 16 is improved, the processing speed of the sludge can be accelerated.

Referring to fig. 1, the sludge incinerator 16 is provided with a primary fan inlet 161 and a secondary fan inlet 162, the ventilation duct 15 communicates the scraper 17 and the primary fan inlet 161, and the ventilation fan 151 is installed on the ventilation duct 15 to ventilate the scraper 17 on the one hand, and to introduce air into the sludge incinerator 16 to incinerate and take away pollutant gas emitted from sludge in the scraper 17, thereby further drying the sludge.

Referring to fig. 1, the tail gas pipeline 14 is communicated with the secondary fan inlet 162 of the drier 13 and the sludge incinerator 16, the tail gas fan 141 is installed on the tail gas pipeline 14 and used for sending organic gas volatilized when the drier 13 dries sludge into the sludge incinerator 16 for treatment, the dust remover 142 and the condenser 143 are installed on the tail gas pipeline 14 and used for filtering and treating dust and water vapor in tail gas generated when the drier 13 dries sludge, in the process, the dust is removed by the dust remover 142, then steam is condensed by the condenser 143, and the possibility that the dust is taken away by condensed water is reduced.

Referring to fig. 2, the input device 11 includes a water filtering mechanism for preliminarily filtering water and a feeding mechanism disposed on one side of the sludge bin 12, one side of the sludge bin 12 close to the feeding mechanism is provided with a feeding port 121, and the feeding port 121 is inclined toward the feeding mechanism to facilitate feeding.

Referring to fig. 3 and 4, feed mechanism includes filter hopper 2 and the upset of drive filter hopper 2 and carries the drive assembly that mud got into sludge warehouse 12, filter hopper 2's appearance is half root circle column, filter hopper 2's plane lateral wall opening holds mud, a plurality of drainage gaps 21 have been seted up on filter hopper 2's the arc surface, drainage gaps 21 can also be slot hole for the pore, the last fixed one deck sponge 22 that absorbs water of fixed layer covers drainage gaps 21, absorb the sewage in the mud from drainage gaps 21, reduce the water content of mud, filter hopper 2 upper portion width direction's both sides set up the breach 23 that absorbs water that supplies the sponge 22 that absorbs water to get into filter hopper 2, the sponge 22 that absorbs water gets into in filter hopper 2 and the upset setting through the breach 23 that absorbs water.

Referring to fig. 4 and 5, a protective shell 24 is integrally arranged on the arc side walls on two sides of the upper portion of the filter hopper 2, the water-absorbing sponge 22 is partially positioned between the protective shell 24 and the filter hopper 2, the water-absorbing sponge 22 is clamped and fixed by the protective shell 24, a fixing hole 241 is formed in the side wall of the protective shell 24, which is far away from the filter hopper 2, a fixing column 25 is clamped in a hole bottom, one end of the fixing column 25 is inserted into the water-absorbing sponge 22 to further fix the water-absorbing sponge 22, a guide shell 26 is arranged above the filter hopper 2, one end of the guide shell 26 is fixed to the upper portion of the filter hopper 2 and the protective shell 24, the water-absorbing sponge 22 in the water-absorbing gap 23 is extruded by the guide shell 26, the water-absorbing sponge 22 is further fixed, and when the filter hopper 2 is turned over, sludge is prevented from leaking from a gap between the water-absorbing sponge 22 and the protective shell 24.

Referring to fig. 3 and 4, one end of the guide shell 26 far away from the filter hopper 2 is obliquely arranged towards the direction of the sludge bin 12, the middle of the guide shell 26 in the width direction is convexly arranged towards the direction of the sludge bin 12, so that the sludge is gathered, and the sludge is not easy to leak from two sides of the guide shell 26.

Referring to fig. 3, the driving assembly includes a frame 31, an upward moving driving oil cylinder 32, an upward moving platform 33, a turnover rocker arm 34 and a turnover driving oil cylinder 35, the frame 31 includes a bottom plate 311 and two vertical guide rods 312 vertically arranged on the bottom plate 311, one ends of the two vertical guide rods 312 far away from the bottom plate 311 are fixed through a connecting rod 313, the upward moving platform 33 is horizontally arranged, the upward moving platform 33 is located between the two vertical guide rods 312, and the two sides of the upward moving platform 33 and the two vertical guide rods 312 are installed in a sliding manner through the matching of a sliding rail and a sliding groove, and the upward moving platform 33 is limited to slide along the vertical direction.

Referring to fig. 3, the upward moving driving cylinder 32 is installed on the bottom plate 311 and located below the upward moving platform 33, and a piston of the upward moving driving cylinder 32 is fixed to the upward moving platform 33 and drives the upward moving platform 33 to vertically slide back and forth.

Referring to fig. 3 and 6, the mounting column 36 is vertically fixed on the upper moving platform 33, one end of the turning rocker arm 34 is hinged to the mounting column 36, the other end of the turning rocker arm 34 is provided with two fork arms 342, the two fork arms 342 are fixed to two end faces of the filter hopper 2, the turning driving oil cylinder 35 is located between the filter hopper 2 and the mounting column 36 and fixed on the upper moving platform 33, the piston of the turning driving oil cylinder 35 is hinged to the turning rocker arm 34 through a rotating shaft 351, and the turning rocker arm 34 is provided with a kidney-shaped hole 341 along the length direction for installation of the rotating shaft 351, so that the rotating shaft 351 can slide in the kidney-shaped hole 341, and turning of the filter hopper 2 is realized.

Referring to fig. 2 and 7, the water filtering mechanism includes a water filtering box 41, a sludge conveying pipe 42, a return box 43, a return pipe 44, a sewage receiving box 45 and a circulating water absorbing assembly, wherein the water filtering box 41 receives sludge with high water content treated in sewage.

Referring to fig. 8 and 9, the circulating water absorption assembly includes an installation frame 51, a conveying chain plate 52, a driving roller 53, a driven roller 54, a squeezing roller 55 and a motor 56 for driving the driving roller 53 to rotate, the driving roller 53 is positioned outside the water filtering box 41 and rotatably installed on the installation frame 51 to be rotatable, the motor 56 drives the driving roller 53 to rotate through a belt, two driven rollers 54 are provided, the two driven rollers 54 are respectively arranged up and down, the driven roller 54 positioned at the lower part is positioned in the water filtering box 41 and rotatably installed in the water filtering box 41 to be rotatable, and the driven roller 54 positioned at the upper part is installed on the installation frame 51 to be rotatable.

Referring to fig. 8 and 9, the conveying chain plate 52 is sleeved outside the driving roller 53 and the two driven rollers 54, chains 521 are arranged on two sides of the conveying chain plate 52, gears 531 meshed with the chains 521 are arranged at two ends of the driving roller 53, the conveying chain plate 52 passes through the driven roller 54 on the upper side under the driving of the driving roller 53, passes through the driving roller 53 and then returns to the inside of the water filtering box 41, so that the part of the conveying chain plate 52 is always positioned in the water filtering box 41, meanwhile, two eccentric wheels 541 are arranged at two ends of the driven roller 54, and eccentric parts of the eccentric wheels 541 at two ends of the driven roller 54 are arranged at an interval of 180 degrees along the circumferential direction of the driven roller 54, so as to drive the conveying chain plate 52 to continuously shake while running.

Referring to fig. 10, a circle of sponge 57 is disposed on both the inner and outer surfaces of the conveying chain plate 52, rubber protecting covers 58 are further fixed on both sides of the inner and outer surfaces of the conveying chain plate 52, the sponge 57 is clamped between the two rubber protecting covers 58, and the opposite side walls of the rubber protecting covers 58 are provided with limiting flanges 581, so as to coat the edges of the sponge 57 and fix the sponge 57, the rubber protecting covers 58 on both sides of the inward side wall of the conveying chain plate 52 coat the sponge 57 on the inward side wall of the conveying chain plate 52, and the rubber protecting covers 58 on both sides of the outward side wall of the conveying chain plate 52 coat the sponge 57 on the outward side wall of the conveying chain plate 52.

Referring to fig. 8 and 9, the number of the squeeze rollers 55 may be two, the conveying chain plate 52 is clamped between the two squeeze rollers 55, the squeeze rollers 55 are also mounted on the mounting frame 51 and can rotate, the diameter of the middle portion of the squeeze roller 55 is larger than the diameters of the two ends, the part of the squeeze roller 55 with the larger diameter squeezes the exposed part of the sponge 57, and the position of the squeeze roller 55 is located between the driving roller 53 and the driven roller 54 located in the filter water box 41 and is located on the upper side outside the filter water box 41.

Referring to fig. 8, the sewage receiving box 45 is located at one side of the filter box 41 and under the pressing roller 55 to receive the pressed sewage.

Referring to fig. 2 and 11, the water filtering box 41 is located on one side of the filter hopper 2 far from the sludge bin 12, when the filter hopper 2 is located at the lowest position, the backflow box 43 is located right below the filter hopper 2, one end of the sludge conveying pipe 42 is communicated with the lower portion of the water filtering box 41, the other end of the sludge conveying pipe 42 is erected on the upper side of the filter hopper 2, one end of the backflow pipe 44 is communicated with the backflow box 43, the other end of the backflow pipe is communicated with the water filtering box 41, the sludge screw pump 6 is arranged on the backflow pipe 44, sludge falling into the backflow box 43 is conveyed back to the water filtering box 41, the size of the sludge conveying pipe 42 is far smaller than that of the water filtering box 41, the sludge output speed is reduced, the amount of sludge falling into the backflow box 43 is reduced, the retention time of the sludge in the water filtering box 41 is longer, and the water filtering effect is better.

Referring to fig. 2 and 12, the vertically be provided with butt post 431 in the backward flow box 43, butt post 431 is the arc surface towards the lateral wall of filter hopper 2, butt post 431 lateral wall is around being provided with the water guide channel 432 that the round is used for receiving sewage, butt post 431 when filter hopper 2 is located the below, through butt post 431 extrusion sponge 22 that absorbs water, sewage flows into water guide channel 432, and water guide channel 432 outwards extends and communicates with sewage receiving box 45, sewage in sewage receiving box 45 can send into sewage treatment system and handle.

The implementation principle of the sludge treatment system in the embodiment of the application is as follows: the sludge is sent into the water filtering box 41 for precipitation, the driving roller 53 drives the conveying chain plate 52 to operate, the conveying chain plate 52 drives the sponge 57 to absorb moisture from the water filtering box 41, the extruding roller 55 extrudes the sponge 57 to extrude the sewage which is sent into the sewage receiving box 45, the sludge at the bottom of the water filtering box 41 is sent into the filtering hopper 2 through the sludge conveying pipe 42, the filtering hopper 2 ascends and overturns under the action of the driving component to send the sludge into the sludge bin 12, in the process, the moisture in the sludge is further discharged through the drainage gap 21 and the water absorbing sponge 22, when the filtering hopper 2 returns to the lowest position, the abutting column 431 extrudes the water absorbing sponge 22, the water in the water absorbing sponge 22 is extruded, the water guide channel 432 receives the sewage and sends the sewage into the sewage receiving box 45, in the ascending and descending processes of the filtering hopper 2, the sludge output by the sludge conveying pipe 42 falls into the backflow box 43, and the backflow box 43 sends the received sludge and partial sewage back to the water filtering box 41.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sludge treatment system is characterized in that: the sludge treatment device comprises a water filtering mechanism, a sludge bin (12) and a feeding mechanism arranged on one side of the sludge bin (12), wherein the sludge bin (12) is provided with a feeding hole (121), the feeding mechanism comprises a filtering hopper (2) and a driving assembly for driving the filtering hopper (2) to overturn and convey sludge into the sludge bin (12), the water filtering mechanism comprises a water filtering box (41), a sludge conveying pipe (42) and a backflow box (43), one end of the sludge conveying pipe (42) is communicated with the lower part of the water filtering box (41), the other end of the sludge conveying pipe (42) is positioned on the upper side of the backflow box (43), and the filtering hopper (2) is positioned between one end, far away from the water filtering box (41), of the sludge conveying pipe (42) and the backflow box (43) when positioned at the lowest part;

the driving assembly comprises a rack (31), an upward moving driving oil cylinder (32), an upward moving platform (33), a turnover rocker arm (34) and a turnover driving oil cylinder (35), wherein the upward moving platform (33) is vertically slidably mounted on the rack (31), the upward moving driving oil cylinder (32) drives the upward moving platform (33) to vertically and reciprocally slide on the rack (31), a mounting column (36) is arranged on the upward moving platform (33), one end of the turnover rocker arm (34) is rotatably connected with the mounting column (36), the filter hopper (2) is fixed at one end, far away from the mounting column (36), of the turnover rocker arm (34), the turnover driving oil cylinder (35) is positioned between the filter hopper (2) and the mounting column (36), and a piston is rotatably connected with the turnover rocker arm (34);

the filter hopper (2) is in a semi-cylindrical shape, sludge is contained in an opening of a side wall of a plane of the filter hopper (2), a plurality of drainage gaps (21) are formed in an arc surface of the filter hopper (2), the drainage gaps (21) are fine holes or long narrow holes, a layer of water absorption sponge (22) is fixed on the arc surface to cover the drainage gaps (21), sewage in the sludge is absorbed from the drainage gaps (21), the water content of the sludge is reduced, water absorption notches (23) for the water absorption sponge (22) to enter the filter hopper (2) are formed in two sides of the width direction of the upper portion of the filter hopper (2), and the water absorption sponge (22) enters the filter hopper (2) through the water absorption notches (23) and is arranged in an overturning manner;

the filter hopper is characterized in that protective cases (24) are integrally arranged on arc side walls on two sides of the upper portion of the filter hopper (2), the water-absorbing sponge (22) is partially arranged between the protective cases (24) and the filter hopper (2), the water-absorbing sponge (22) is clamped and fixed through the protective cases (24), fixing holes (241) are formed in the side walls, away from the filter hopper (2), of the protective cases (24), fixing columns (25) are clamped in bottom holes of the holes, one ends of the fixing columns (25) are inserted into the water-absorbing sponge (22) to further fix the water-absorbing sponge (22), guide cases (26) are arranged above the filter hopper (2), one ends of the guide cases (26) are fixed with the upper portion of the filter hopper (2) and the protective cases (24) and extrude the water-absorbing sponge (22) in the water-absorbing gap (23) through the guide cases (26), the water-absorbing sponge (22) is further fixed, and when the filter hopper (2) is turned over, sludge is prevented from leaking from gaps between the water-absorbing sponge (22) and the protective cases (24);

vertical butt post (431) that is provided with in the return flow box (43), butt post (431) orientation the lateral wall of filter bucket (2) is the arc surface, butt post (431) lateral wall is provided with water guide channel (432) that the round is used for receiving sewage.

2. The sludge treatment system of claim 1, wherein: the water filtering mechanism further comprises a sewage receiving box (45), a conveying chain plate (52), a driving roller (53), a driven roller (54), an extruding roller (55) and a motor (56) for driving the driving roller (53) to rotate, the conveying chain plate (52) is sleeved on the driving roller (53) and the driven roller (54), the driving roller (53) drives the conveying chain plate (52) to wind the driving roller (53) and the driven roller (54) to move, a sponge (57) is arranged on the conveying chain plate (52), the sewage receiving box (45) is located on one side of the filtering box (41), the conveying chain plate (52) is partially located in the filtering box (41), the conveying chain plate (52) is partially located on the upper side of the sewage receiving box (45) and provided with the extruding roller (55), and the extruding roller (55) extrudes the sponge (57).

3. A sludge treatment system as claimed in claim 2, wherein: the two driven rollers (54) are arranged up and down, one driven roller (54) is located in the water filtering box (41), and the conveying chain plate (52) is driven by the driving roller (53) to pass through the driven rollers (54), the driving roller (53) and then return to the water filtering box (41).

4. A sludge treatment system as claimed in claim 3, wherein: the conveying chain plate (52) is provided with a rubber protecting sleeve (58), the two sides of the sponge (57) are provided with the rubber protecting sleeves (58), and the rubber protecting sleeves (58) are provided with limiting flanges (581) for limiting the sponge (57) to fall off.

5. The sludge treatment system of claim 4, wherein: eccentric wheels (541) are arranged at two ends of the driven roller (54).