CN113368551A

CN113368551A - Sludge treatment pool

Info

Publication number: CN113368551A
Application number: CN202110756174.0A
Authority: CN
Inventors: 刘凌晓
Original assignee: Individual
Current assignee: Wuhan Design and Research Institute of China Coal Technology and Engineering Group
Priority date: 2019-07-13
Filing date: 2019-07-13
Publication date: 2021-09-10
Anticipated expiration: 2039-07-13
Also published as: CN110215762B; CN113368551B; CN110215762A; CN113457228A; CN113457228B

Abstract

The invention discloses a sludge treatment tank, which comprises a sewage tank, wherein a plurality of mud scraping plates are arranged at the bottom end of the sewage tank, a sedimentation tank is arranged on the right side of the bottom end of the sewage tank, a sludge extraction mechanism is arranged in the sedimentation tank, the sludge extraction mechanism comprises an auger group, an auger driving motor and an auger fixing frame, the auger group comprises a horizontal auger in the sedimentation tank and a vertical auger positioned in a sludge discharge pipe at the side end of the sewage tank, and the auger group is respectively fixed on the side wall of the sedimentation tank and the inner wall of the sludge discharge pipe through the auger fixing frame. The packing auger fixing frame comprises a bearing sleeve and a plurality of supports fixed on the outer wall of the bearing sleeve. The packing auger driving motor is arranged at the right side of the rear end of the sewage tank and is connected with a rotating shaft of the horizontal packing auger through a belt and a belt wheel. The sewage tank is also provided with a sludge baffle mechanism, a baffle sealing mechanism, a sludge sensing device and a sludge coarse filtering device. The invention has the characteristics of sludge extraction, blocking and induction.

Description

Sludge treatment pool

Technical Field

The invention relates to a sludge treatment tank.

Background

Along with people to the more and more high of the degree of importance of environment, sewage treatment device has obtained quick development, and traditional sewage treatment method carries out preliminary sedimentation through the sewage treatment pond to sludge after will deposiing is extracted out, but because sludge is located the below of sewage, consequently leads to sludge and sewage to mix easily in the extraction is overshot, need carry out secondary treatment to the sludge of taking out, and is with high costs, if do not carry out secondary treatment, causes the waste of water resource. Therefore, the sludge treatment tank with the functions of sludge extraction, separation and induction is designed, and the sludge treatment tank has wide market prospect.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, the present invention provides a sludge treatment basin having sludge extraction, baffling and sensing.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the sludge treatment tank comprises a sewage tank, wherein a plurality of mud scraping plates are arranged at the bottom end of the sewage tank, a sedimentation tank is arranged on the right side of the bottom end of the sewage tank, a sludge extraction mechanism is arranged in the sedimentation tank, the sludge extraction mechanism comprises an auger group, an auger driving motor and an auger fixing frame, the auger group comprises a horizontal auger in the sedimentation tank and a vertical auger positioned in a sludge discharge pipe at the side end of the sewage tank, the horizontal auger and the vertical auger are connected through a universal joint, and the two ends of the horizontal auger and the vertical auger are respectively fixed on the side wall of the sedimentation tank and the inner wall of the sludge discharge pipe through the auger fixing frame; the packing auger fixing frame comprises a bearing sleeve and a plurality of supports fixed on the outer wall of the bearing sleeve; the auger driving motor is arranged on the right side of the rear end of the sewage tank and is connected with a rotating shaft of the horizontal auger through a belt and a belt wheel;

a sludge baffle mechanism is arranged on the upper side of the sludge extraction mechanism and comprises a baffle plate and a baffle plate driving mechanism, the baffle plate is a horizontal square plate, and a chamfer angle is arranged on the right side of the baffle plate; the screw baffle driving mechanism is positioned in a cavity arranged at the bottom of the sewage pool and comprises a screw and a screw driving motor, an output shaft of the screw driving motor is connected with the screw through a belt and a belt wheel, and a nut matched with the screw is fixed at the bottom of the left side of the baffle; the baffle plate can slide in a baffle groove arranged at the bottom of the sewage pool, and an opening is formed in the right end of the baffle groove;

a baffle plate sealing mechanism is arranged on the right side wall of the sedimentation tank and comprises a horizontal sliding block and a vertical sliding block, the horizontal sliding block can slide in a horizontal sliding groove arranged at the side end of the sedimentation tank, and the horizontal sliding groove is opposite to the opening of the baffle groove; the vertical sliding groove is positioned on the left side of the horizontal sliding groove, the left end of the horizontal sliding block is propped against the vertical sliding block, a return spring is respectively arranged in the horizontal sliding groove and the vertical sliding groove, and the end part of each return spring is propped against the corresponding horizontal sliding block and the corresponding vertical sliding block respectively; scrapers are respectively arranged on the upper side and the lower side of the opening of the blocking groove and the upper side of the opening of the horizontal sliding groove, an extending part is arranged at the upper end of the left side of the vertical sliding block, and a chamfer is arranged at the left end of the extending part; a plurality of sealing rubber strips are arranged on the baffle plate, the horizontal sliding block and the vertical sliding block;

two square rods are symmetrically arranged on the front side and the rear side of the sewage pool, two ends of the plurality of mud scrapers are respectively hinged with the square rods, sliding grooves are formed in the inner sides of the two ends of the square rods, convex blocks are correspondingly arranged on the side wall of the sewage pool, and the square rods can horizontally slide on the side wall of the sewage pool through the convex blocks; the upper end of the square rod is provided with a plurality of driving teeth, the corresponding side walls of the sewage pool are respectively hinged with a swinging rod, the lower end of the swinging rod is provided with an arc-shaped fluted disc meshed with the driving teeth, and the upper end of the swinging rod is connected with an eccentric wheel mechanism in a sliding manner;

a sludge sensing device is further arranged in the sedimentation tank and comprises a round rod, a pressure sensor and a pushing cylinder, and the pressure sensor is arranged at the connecting end of the round rod and a piston rod of the pushing cylinder;

a sewage inlet and a water outlet are arranged on the side wall of the sludge pond, and valves are respectively arranged at the sewage inlet and the water outlet; the sewage pool is characterized in that a controller is arranged on the rear side wall of the sewage pool, the controller is connected with the pressure sensor, an alarm device is arranged on the controller, and a plurality of control buttons are further arranged on the controller.

Further, the symmetry sets up many pairs of otic placodes around the bottom of square pole, the otic placode with the end hinge of mud scraping plate connects, the right side of otic placode is provided with mud scraping plate stop gear, mud scraping plate stop gear includes gag lever post and compression spring, the gag lever post slidable is in the backup pad that the otic placode side set up, compression spring's both ends are pushed up respectively on the terminal baffle of backup pad and gag lever post.

Furthermore, the bottom end of the mud scraper is provided with a chamfer.

Furthermore, a plurality of sludge shaking mechanisms are respectively arranged on two side walls of the sedimentation tank in a staggered manner, each sludge shaking mechanism comprises a shaking upper rod, a shaking lower rod and a tension spring, the shaking upper rods and the shaking lower rods are fixedly connected through round rods, the round rods are rotatably fixed on the side walls of the sedimentation tank through fixing seats, compression springs are sleeved on the round rods, and two ends of each compression spring are respectively propped against the fixing seats and the shaking lower rods; the lower end of the shaking lower rod is tightly attached to the packing auger; the shaking upper rod is positioned on the lower side of the horizontal sliding groove and is obliquely arranged.

Further, a sludge coarse filtering device is arranged on the left side of the sewage pool and comprises a filtering tank, a filtering plate and a push plate, and the filtering tank is connected with the sewage inlet through a water pipe; the filter plate is a mesh plate, the filter plate is arranged obliquely, and two sides of the filter plate are fixed on the side wall of the filter tank; the push plate can slide on the filter plate, and the side end of the push plate is connected with an inclined cylinder.

The invention has the beneficial effects that:

the invention senses that the sludge in the sedimentation tank is fully settled through the sludge sensing device, separates the sludge and the sewage in the sedimentation tank through the sludge separating mechanism and the separating baffle sludge sealing mechanism, and extracts the sludge in the sedimentation tank through the sludge extracting mechanism.

The sludge in the sedimentation tank is extracted out by arranging the auger group. The sewage and the sludge in the sedimentation tank can be isolated by arranging the isolating baffle. The right side of the baffle is provided with a chamfer, so that the baffle can conveniently slide into the horizontal chute. Through setting up horizontal slider, can in time push out mud. Through setting up vertical slider, can conveniently scrape the mud in separating the baffle chamfer. The reciprocating motion of the square rod can be realized by arranging the swinging rod and the eccentric wheel mechanism. By arranging the pressure sensor, whether the sludge in the sedimentation tank is full or not can be detected. Through setting up the mud scraper stop gear, can exert elasticity to the bottom of mud scraper when spacing to the mud scraper. Through setting up mud shake mechanism, can avoid the mud in the sedimentation tank to form the cavity after extracting to a certain extent. Through the thick filter equipment of mud, can carry out the coarse filtration to sewage, conveniently carry out sewage sedimentation and handle.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic side sectional perspective view of the present invention;

FIG. 4 is a side sectional view of the present invention;

FIG. 5 is a schematic illustration of the scraping motion of the scraper bar of the present invention;

FIG. 6 is a schematic view showing the reciprocating movement of the scraper to an initial position according to the present invention;

FIG. 7 is a schematic perspective view of a square pole of the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 4 in accordance with the present invention;

FIG. 9 is an enlarged view of a portion B of FIG. 5 in accordance with the present invention;

FIG. 10 is a diagram illustrating the motion of the baffle of the present invention;

FIG. 11 is a diagram illustrating the motion of the baffle of the present invention;

FIG. 12 is a schematic perspective view of the baffle of the present invention;

FIG. 13 is a schematic view of a three-dimensional structure of a sludge shaking mechanism according to the present invention;

FIG. 14 is a schematic sectional view of the auger assembly of the present invention;

FIG. 15 is an enlarged view of a portion C of FIG. 14 of the present invention;

FIG. 16 is a schematic view of the packing auger fixing frame of the present invention;

FIG. 17 is a schematic view of a partial cross-sectional structure of the sludge sensing apparatus of the present invention;

FIG. 18 is a side view of the eccentric wheel mechanism of the present invention;

in the figure, a sewage tank 1, a mud scraping plate 11, a mud discharging pipe 12, a square rod 13, an ear plate 131, a limit rod 131a, a compression spring 131b, a support plate 131c, a baffle 131d, a driving tooth 132, a swinging rod 14, an arc-shaped fluted disc 141, a strip-shaped groove 142, a sewage inlet 15, a water outlet 16, a controller 17, an alarm device 171, a control button 172, a sedimentation tank 2, a sludge extraction mechanism 21, an auger set 211, a horizontal auger 211a, a vertical auger 211b, a universal joint 211c, an auger driving motor 212, an auger fixing frame 213, a bearing sleeve 213a, a bracket 213b, a sludge blocking mechanism 22, a blocking plate 221, a blocking groove 221a, a blocking plate driving mechanism 222, a lead screw driving motor 222b, a blocking plate sealing mechanism 23, a horizontal sliding block 231, a horizontal sliding groove 231a, a vertical sliding block 232, a vertical sliding groove 232a, a return spring 232b, an extension 232c, a scraping plate 233, a, The device comprises a sealing rubber strip 234, a sludge sensing device 24, a round rod 241, a pressure sensor 242, a pushing cylinder 243, an open groove 243a, a sludge shaking mechanism 25, a shaking upper rod 251, a shaking lower rod 252, a tension spring 253, a fixed seat 254, a compression spring 255, an eccentric wheel mechanism 3, an eccentric wheel driving motor 31, an eccentric wheel 32, a cylinder 321, a sludge coarse filtering device 4, a filtering tank 41, a filtering plate 42, a push plate 43, an inclined cylinder 431, a carrying vehicle platform 44, an antiskid convex strip 441, a square hopper 45 and an anti-splash plate 46.

Detailed Description

For a better understanding of the present invention, embodiments thereof are explained in detail below with reference to the accompanying drawings.

The sludge treatment tank shown in the attached figures 1 to 18 comprises a sewage tank 1, wherein a plurality of mud scrapers 11 are arranged at the bottom end of the sewage tank 1, a sedimentation tank 2 is arranged at the right side of the bottom end of the sewage tank 1, sludge is scraped into the sedimentation tank 2 through the mud scrapers 11, the sedimentation tank 2 is V-shaped, and the bottom of the sedimentation tank 2 is arc-shaped. The sedimentation tank 2 is internally provided with a sludge extraction mechanism 21, the sludge extraction mechanism 21 comprises an auger group 211, an auger driving motor 212 and an auger fixing frame 213, the auger group 211 comprises a horizontal auger 211a in the sedimentation tank 2 and a vertical auger 211b positioned in a sludge discharge pipe 12 at the side end of the sewage tank 1, the horizontal auger 211a and the vertical auger 211b are connected through a universal joint 211c, the two ends of the horizontal auger 211a and the two ends of the vertical auger 211b are respectively and fixedly connected through the auger fixing frame 213, the auger fixing frame 213 comprises a bearing sleeve 213a and a plurality of supports 213b fixed on the outer wall of the bearing sleeve 213a, the tail ends of the plurality of supports 213b are firstly fixed, then two ends of the horizontal auger 211a and the two ends of the vertical auger 211b are respectively sleeved with a bearing, and the bearings are fixed in the bearing sleeve 213 a. The packing auger driving motor 212 is arranged at the right side of the rear end of the sewage tank 1, and the packing auger driving motor 213b is connected with a rotating shaft of the horizontal packing auger 211a through a belt and a belt wheel. When collecting sludge, the packing auger group 211 is driven to rotate by the packing auger driving motor 213b, and the sludge is discharged from the sludge discharge pipe 12.

The upper side of the sludge extraction mechanism 21 is provided with a sludge blocking mechanism 22, the sludge blocking mechanism 22 comprises a blocking plate 221 and a blocking plate driving mechanism 222, and the blocking plate 221 is a horizontal square plate. Through removing square board to the right side, separate mud and sewage and keep off. The baffle driving mechanism 222 is located in a chamber arranged at the bottom of the sewage tank 1, the baffle driving mechanism 222 comprises a screw rod 222a and a screw rod driving motor 222b, an output shaft of the screw rod driving motor 222b is connected with the screw rod 222a through a belt and a belt wheel, and a nut matched with the screw rod 222a is fixed at the bottom of the left side of the baffle 221. The partition 221 is driven to move left and right by the lead screw driving motor 222 b. In order to ensure stable movement of the barrier ribs 221, the barrier rib driving mechanism 222 is provided in plurality. The baffle 221 is slidably disposed in a baffle groove 221a formed in the bottom of the wastewater tank 1, and an opening is formed at the right end of the baffle groove 221 a. When the device is used, the screw rod 222a is driven to rotate by the screw rod driving motor 222b, the screw rod 222a drives the baffle 221 to slide out of the baffle groove 221a while rotating, and the baffle 221 separates sludge and sewage in the sedimentation tank 2, so that the sewage can be prevented from being discharged from the sludge discharge pipe 12.

The right side wall of the sedimentation tank 2 is provided with a baffle plate sealing mechanism 23, the baffle plate sealing mechanism 23 comprises a horizontal sliding block 231 and a vertical sliding block 232, the horizontal sliding block 231 can slide in a horizontal sliding groove 231a, and the horizontal sliding groove 231a is opposite to the opening of the baffle groove 221 a. A vertical sliding groove 232a is arranged on the left side of the horizontal sliding groove 231a, the left end of the horizontal sliding block 231 abuts against the vertical sliding block 232, a return spring 232b is respectively arranged in the horizontal sliding groove 231 and the vertical sliding groove 232a, and the end of each return spring 232b abuts against the corresponding horizontal sliding block 231 and the corresponding vertical sliding block 232. The right side of the baffle plate 221 is provided with a chamfer, the upper and lower sides of the opening of the baffle groove 221a and the upper side of the opening of the horizontal sliding groove 231b are respectively provided with a scraper 233, and sludge on the surface of the baffle plate 221 is cleaned by the scrapers 233. The upper end of the left side of the vertical sliding block 232 is provided with an extension part, the left end of the extension part is provided with a chamfer, and sludge at the chamfer of the baffle 221 is cleaned through the extension part 232 c. When the device is used, the baffle driving mechanism 222 drives the baffle 221 to move rightwards, the baffle 221 moving rightwards pushes the horizontal sliding block 231 to move rightwards, and meanwhile, the vertical sliding block 232 moves downwards until the right side of the baffle 221 slides into the horizontal sliding groove 231a, so that separation of sludge and sewage can be ensured. After the sludge is extracted, the baffle 221 is driven by the lead screw driving motor 222b to move to the left to the initial position, and simultaneously the horizontal slider 231 and the vertical slider 232 are restored to the initial position under the action of the return spring 232 b.

In order to maintain the sealing performance of the barrier rib 221, a plurality of sealing rubber strips 234 are provided on the barrier rib 221, the horizontal slider 231, and the vertical slider 232. Two square rods 13 are symmetrically arranged on the front side and the rear side of the sewage tank 1, the square rods 13 can horizontally slide on the convex blocks on the side walls of the sewage tank, in the concrete embodiment, sliding grooves are formed in the inner sides of the square rods 13, and the square rods 13 slide on the convex blocks through the sliding grooves. The two ends of the plurality of mud scrapers 11 are hinged to the square rod 13 respectively, in a specific embodiment, the bottom end of the square rod 13 is symmetrically provided with the plurality of lug plates 131, the lug plates 131 are hinged to the end of the mud scrapers 11 through pins, the right sides of the lug plates 131 are provided with mud scraper limiting mechanisms, each mud scraper limiting mechanism comprises a limiting rod 131a and a compression spring 131b, the limiting rods 131a can slide on supporting plates 131c arranged at the side ends of the lug plates 131, and the two ends of each compression spring 131b are respectively supported against the supporting plates 131c and baffle plates 131d at the tail ends of the limiting rods 131 a. In order to prevent the mud scraper 11 from carrying sludge when it is returned, the bottom end of the mud scraper 11 is provided with a chamfer.

The upper end of the square rod 13 is provided with a plurality of driving teeth 132, the corresponding side walls of the sewage pool 1 are respectively hinged with a swing rod 14, the lower end of the swing rod 14 is provided with an arc-shaped fluted disc 141 meshed with the driving teeth 132, and the upper end of the swing rod 14 is connected with an eccentric wheel mechanism 3. The eccentric wheel mechanism 3 comprises an eccentric wheel driving motor 31 and an eccentric wheel 32, the eccentric wheel driving motor 31 is fixed on the side wall of the sewage pool 1, an output shaft of the eccentric wheel driving motor 31 penetrates through the side wall of the sewage pool 1 to be connected with the eccentric wheel 32, a cylinder 321 is fixed on the edge of the eccentric wheel 32, and the cylinder 321 can slide in a strip-shaped groove 142 above the oscillating rod 14. In this way, the swing of the swing lever 14 and thus the reciprocating motion of the square lever 13 is achieved by the rotation of the eccentric 32.

The sedimentation tank 2 is also internally provided with a sludge sensing device 24, the sludge sensing device 24 comprises a round rod 241, a pressure sensor 242 and a pushing cylinder 243, and the resistance force applied to the top end of the round rod 241 is different due to different densities of sewage and sludge, so that whether the sludge in the sedimentation tank 2 is full or not can be sensed according to the pressure sensor 242. The pressure sensor 242 is arranged at the connecting end of the round rod 241 and the piston rod of the pushing cylinder 243, and the specific implementation mode is as follows: an open groove 243a is provided at the top end of the piston rod of the push cylinder 243, the rear end of the round bar 241 is slidable in the open groove 243a, and the pressure sensor 242 is located in the open groove 243 a. And a pressure sensor 242 is fixed to the rear end of the round bar 241.

The left side of the sewage pool 1 is provided with a sludge coarse filtering device 4, the sludge coarse filtering device 4 comprises a filtering tank 41, a filtering plate 42 and a push plate 43, and the filtering tank 41 is connected with the sewage inlet 15 through a water pipe. The filter plate is a 41-mesh plate, the filter plate 41 is obliquely arranged, and two sides of the filter plate 41 are fixed on the side wall of the filter tank 42; the push plate 43 is slidable on the filter plate 42, and an inclined cylinder 431 is connected to a side end of the push plate 43. The inclined cylinder 431 pushes the push plate 43 to reciprocate, so that large-particle sludge is filtered. A carrier loader platform 44 is arranged on one side of the filter tank 41, the bottom end of the filter tank 41 and the bottom of the carrier loader platform 44 are supported by a plurality of support columns, and a square material leaking hopper 45 is fixed at the outlet end of the filter plate 42. Set up arc splash guard 46 at the export bottom of filter 42, carrier loader platform 44 includes horizontal plane and inclined plane, sets up a plurality of anti-skidding sand grips 441 at the upper surface on inclined plane equidistant.

The side wall of the sludge tank 1 is provided with a sewage inlet 15 and a water outlet 16, and the sewage inlet 15 and the water outlet 16 are respectively provided with a valve 151. The rear side wall of the sewage pool 1 is provided with a controller 17, the controller 17 is in control connection with a pressure sensor 242, the controller 17 is provided with an alarm device 171, the controller 17 is also provided with a plurality of control buttons 172, the control buttons 172 comprise an inclined cylinder extension button and a tilt cylinder contraction button, a start button and a stop button of the eccentric wheel driving motor 31 and a start button and a stop button of the auger driving motor 212. A timer is further disposed in the controller 17, and the extension and retraction of the piston rod of the pushing cylinder 243 are sequentially controlled according to a time interval set by the timer. When the pressure sensor 242 reaches a set value, the pressure sensor 242 sends a signal to the controller 17, the controller 17 controls the alarm device to alarm, and the auger driving motor 212 is manually or automatically controlled to start and stop the control button to extract sludge.

After the sludge is extracted for a period of time, the baffle 221 and the sludge in the inner wall cavity of the sedimentation tank 2 are continuously extracted to form a cavity, and the extraction efficiency is reduced. In order to solve the problem, a plurality of sludge shaking mechanisms 25 are respectively arranged on two side walls of the sedimentation tank 2 in a staggered mode, each sludge shaking mechanism 25 comprises a shaking upper rod 251, a shaking lower rod 252 and a tension spring 253, the shaking upper rods 251 and the shaking lower rods 253 are fixedly connected through round rods, the round rods are rotatably fixed on the side walls of the sedimentation tank 2 through fixing seats 254, the lower ends of the shaking lower rods 252 are tightly attached to the edges of the horizontal packing auger 211a, the shaking lower rods 252 swing up and down through the rotating collision of the horizontal packing auger 211a, in order to prevent the shaking lower rods 252 from horizontally sliding, compression springs 255 are sleeved on the round rods, and two ends of each compression spring 255 are respectively abutted against the fixing seats 254 and the shaking lower rods 252. The shaking upper rod 251 is positioned at the lower side of the baffle 221, the upper end of the shaking upper rod 251 is obliquely arranged at the upper right side, and sludge at the lower side of the baffle 221 is shaken off by intermittent shaking of the shaking upper rod 251, so that a cavity is prevented from being formed during sludge extraction.

While the preferred embodiments and examples of the present invention have been described in detail, it will be apparent to those skilled in the art that the invention is not limited thereto, and that various other modifications and variations can be made without departing from the spirit of the invention.

Claims

1. Sludge treatment pond, it includes the effluent water sump, the bottom of effluent water sump is provided with a plurality of mud scrapers, the bottom right side of effluent water sump is provided with sedimentation tank, its characterized in that: the sludge extraction device comprises a sedimentation tank, a sludge extraction mechanism, a sludge storage tank, a sludge discharge pipe and a sludge discharge pipe, wherein the sedimentation tank is internally provided with the sludge extraction mechanism, the sludge extraction mechanism comprises an auger group, an auger driving motor and an auger fixing frame, the auger group comprises a horizontal auger and a vertical auger which are positioned in the sedimentation tank, the sludge discharge pipe is arranged at the side end of the sewage tank, the horizontal auger and the vertical auger are connected through a universal joint, and the two ends of the horizontal auger and the vertical auger are respectively fixed on the side wall of the sedimentation tank and the inner wall of the sludge discharge pipe through the auger fixing frame; the packing auger fixing frame comprises a bearing sleeve and a plurality of supports fixed on the outer wall of the bearing sleeve; the auger driving motor is arranged on the right side of the rear end of the sewage tank and is connected with a rotating shaft of the horizontal auger through a belt and a belt wheel;

a sewage inlet and a water outlet are arranged on the side wall of the sludge pond, and valves are respectively arranged at the sewage inlet and the water outlet; a controller is arranged on the rear side wall of the sewage pool, the controller is connected with the pressure sensor, an alarm device is arranged on the controller, and a plurality of control buttons are further arranged on the controller;

the sludge shaking mechanisms comprise shaking upper rods, shaking lower rods and tension springs, the shaking upper rods and the shaking lower rods are fixedly connected through round rods, the round rods are rotatably fixed on the side walls of the sedimentation tank through fixing seats, compression springs are sleeved on the round rods, and two ends of each compression spring are respectively propped against the fixing seats and the shaking lower rods; the lower end of the shaking lower rod is tightly attached to the packing auger; the shaking upper rod is positioned at the lower side of the horizontal sliding groove and is obliquely arranged;

a sludge coarse filtering device is arranged on the left side of the sewage pool and comprises a filtering tank, a filtering plate and a push plate, and the filtering tank is connected with the sewage inlet through a water pipe; the filter plate is a mesh plate, the filter plate is arranged obliquely, and two sides of the filter plate are fixed on the side wall of the filter tank; the push plate can slide on the filter plate, and the side end of the push plate is connected with an inclined cylinder.

2. The sludge treatment tank of claim 1, wherein: the bottom front and back symmetry of square pole sets up many pairs of otic placodes, the otic placode with the end hinged of mud scraper is connected, the right side of otic placode is provided with mud scraper stop gear, mud scraper stop gear includes gag lever post and compression spring, the gag lever post slidable is in the backup pad that the otic placode side set up, compression spring's both ends are pushed up respectively on the terminal baffle of backup pad and gag lever post.

3. The sludge treatment tank of claim 1, wherein: and a chamfer is arranged at the bottom end of the mud scraper.