CN112354234A

CN112354234A - Filtration equipment for sewage treatment

Info

Publication number: CN112354234A
Application number: CN202011138302.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Mei Boshou
Current assignee: Jiangmen Xinhui Renke Environmental Protection Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-02-12
Anticipated expiration: 2040-10-22
Also published as: CN112354234B

Abstract

The invention provides a filtering device for sewage treatment, which comprises a treatment tank for containing sewage and a filter plate arranged in the treatment tank, wherein a water inlet pipeline is arranged at the top of the treatment tank, a valve is arranged on the water inlet pipeline, the treatment tank is supported and fixed on the ground through a bracket, the top end of an upper chamber is vertically connected with an overflow pipe, the outlet end of the top of the overflow pipe is horizontally connected with a transition pipe, the outlet end of the transition pipe is connected with a water falling pipe which is vertically arranged downwards, the outlet end of the water falling pipe is connected with a horizontally arranged cylinder body, the cylinder body is fixedly arranged on the ground, a piston is arranged in the cylinder body, a through hole for the lower end of a sliding rod to pass through is arranged on a sliding slat and a bearing platform, and the height of the sliding plate for supporting the filter plate in the lower chamber is required. The invention is convenient for cleaning the filter plate and simple and convenient for use.

Description

Filtration equipment for sewage treatment

Technical Field

The invention relates to sewage treatment equipment, in particular to filtering equipment for sewage treatment.

Background

In the processing to sewage, often need filter it many times to obtain comparatively limpid liquid, and in actual engineering, during later stage filtration purification, the aquatic still has partly flocculent suspended solid can be filtered on the filter plate, because the flocculent can not the layering exist usually, but in whole liquid, consequently, can progressively cover on the filter plate when filtering, lead to the filter plate to block up, if the manual work takes out the filter plate or stretch out to go into in the processing tank and clear away flocculent deposit thing, all very inconvenient, and in case block up, the liquid in the processing tank just can spill over in all directions, the polluted environment. Therefore, a more automatic and convenient apparatus is currently required for the filtration and purification of liquids under such circumstances.

Disclosure of Invention

The invention aims to solve the problems that the filtering equipment for sewage treatment is provided aiming at the defects in the prior art, and a series of problems of inconvenient use caused by the fact that floccules block a filter plate during the later-stage treatment of sewage in the prior art are solved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sewage treatment filter device comprises a treatment tank for containing sewage and a filter plate arranged in the treatment tank, wherein a water inlet pipeline is arranged at the top of the treatment tank, a valve is arranged on the water inlet pipeline, the treatment tank is supported and fixed on the ground through a support, the filter plate can be arranged in the treatment tank in a vertically sliding manner, the treatment tank is divided into an upper bin and a lower bin by the filter plate, the lower bin is vertically arranged and is in a cuboid shape, the initial position of the filter plate is arranged at the top of the lower bin, and a slag discharge pipeline is connected to the side wall of the lower bin below the filter plate; the central part of the filter plate is of a solid structure, the rest parts of the filter plate are of hollow structures, a sliding rod is vertically and fixedly connected to the bottom of the solid structure, and the lower end of the sliding rod penetrates through the lower bin and is propped against a sliding strip plate below the treatment tank;

the top end of the upper bin is vertically connected with an overflow pipe, the outlet end of the top of the overflow pipe is horizontally connected with a transition pipe, the outlet end of the transition pipe is connected with a downpipe which is vertically arranged downwards, the outlet end of the downpipe is connected with a horizontally arranged cylinder body, the cylinder body is fixedly arranged on the ground, a piston is arranged in the cylinder body, one end of the piston, which is far away from the downpipe, is fixedly connected with a horizontally arranged piston rod, the piston rod is connected with a sliding slat which is horizontally and slidably arranged on a bearing platform, the bearing platform is fixedly arranged, a reset spring is sleeved on the piston rod, the position of the piston rod, which is close to the;

the sliding slat and the bearing platform are respectively provided with a through hole for the lower end of the sliding rod to pass through, the through hole on the bearing platform is arranged right opposite to the bottom end of the sliding rod, when the piston is at the initial position limited by the return spring, the two through holes are completely staggered without being communicated with each other,

when water overflowing from the overflow pipe enters the cylinder body and generates enough pressure, the piston is pushed to move, so that the two through holes are overlapped;

the bottom of the filter plate is also provided with a sliding plate closely attached to the inner wall of the lower chamber, and the sliding plate is in sliding fit with the inner wall of the lower chamber and seals the inlet of the slag discharge pipeline at the initial position; meanwhile, the length of the sliding plate in the vertical direction meets the following requirements: after the sliding rod passes through the two overlapped through holes, the sliding plate supports the filter plate in the lower chamber by the height that the output side of the filter plate close to one side of the slag discharge pipeline is connected with the inlet end of the slag discharge pipeline. And a sensor is arranged on the rear side below the through hole of the bearing platform, so that when the sensor detects that the sliding rod penetrates out of the through hole, the sensor sends an instruction to a corresponding controller to control the valve to be closed.

Compared with the prior art, the invention has the following beneficial effects: after the filter plate is blocked, the water level continuously rises until the water level rises to the top of the overflow pipe, then the water enters the cylinder body along the downpipe, the great pressure is generated, the piston rod in the cylinder body is pushed to move, then the sliding strip plate slides, the two through holes are overlapped to enable the sliding rod to instantly fall down, the filter plate is driven to move down to the position where the filter plate is connected with the inlet end of the slag discharge pipeline, the valve of the water inlet pipeline is closed at the same time, water inlet is stopped, therefore, after a small part of residual water flows out, an operator can conveniently extend into the treatment tank from the slag discharge pipeline through a shovel and the like to remove deposited floccules on the filter plate, the permeability of the filter plate is recovered, the problems that the filter plate is inconvenient to clean and the removed floccules are inconvenient to take out from the treatment tank when the filter plate is manually moved into the tank body to clean the filter plate are solved, the, is very simple and ingenious.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

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

FIG. 2 is a schematic view of a sliding wedge-shaped rib provided on a filter plate;

FIG. 3 is a schematic view of a lower chamber provided with another slag discharge duct;

FIG. 4 is a top view at the filter plate;

FIG. 5 is a schematic cross-sectional view of a wedge rib;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic view of a wedge-shaped rib provided with a fender;

FIG. 8 is a schematic structural view of the material receiving groove;

FIG. 9 is a schematic structural view of the buffer cavity at the end of the receiving groove;

FIG. 10 is a partial structural view of the through hole in the side wall of the bearing platform.

The device comprises a treatment tank 1, a water inlet pipeline 2, a filter plate 3, wedge-shaped ribs 4, rolling balls 5, an overflow pipe 6, a downpipe 7, a cylinder body 8, a support 9, a sliding rod 10, a solid structure 11, a water outlet pipe 12, a slag discharge pipeline 13, a sliding plate 14, an electromagnet 15, a piston 16, a sliding strip plate 17, a return spring 18, a limiting block 19, a feeler lever 20, a telescopic rod 21, a reel 22, a towing line 23, a metal rod 24, a cylindrical spring 25, an insulating block 26, a metal block 27, a rope 28, a pipeline door panel 29, a bulge 30, a mud guard 31, a material receiving groove 32, a spiral shaft 33, a buffer cavity 34, a sliding pressure plate 35, a hydraulic rod 36, a cutting plate 37, an extrusion pipeline 38, a water draining plate 39, a water receiving groove 40, a pressure bearing spring 41, a limiting rod 42, a sliding shaft.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:

as shown in fig. 1, the embodiment discloses a filtering apparatus for sewage treatment, which includes a treatment tank 1 for containing sewage and a filter plate 3 installed in the treatment tank 1, wherein a water inlet pipe 2 is installed at the top of the treatment tank 1, a valve is installed on the water inlet pipe 2, the treatment tank 1 is supported and fixed on the ground through a support 9, the filter plate 3 can be installed in the treatment tank 1 in a vertically sliding manner, the treatment tank 1 is divided into an upper bin and a lower bin by the filter plate 3, the lower bin is vertically arranged in a rectangular shape, the initial position of the filter plate 3 is installed at the top of the lower bin, and a slag discharge pipe 13 is connected to the side wall of the lower bin below the filter plate 3; the central part of the filter plate 3 is a solid structure, the rest parts are hollow structures, a sliding rod 10 is vertically and fixedly connected to the bottom of the solid structure, and the lower end of the sliding rod 10 penetrates through the lower chamber and is propped against a sliding strip plate 17 below the treatment tank 1 so as to support the whole filter plate 3 to be stable at the initial position.

Meanwhile, with reference to fig. 1, the overflow pipe 6 is vertically connected to the top end of the upper chamber of the present embodiment, the specific height of the overflow pipe 6 is set as required, and the higher the overflow, the greater the pressure generated. 6 top exit end horizontally connected of overflow pipe has the transition pipe, and the exit end of transition pipe is connected with the pipe in the water 7 of vertical setting down, and the exit end of pipe in the water 7 is connected on the cylinder body 8 that the level set up, and 8 fixed mounting of cylinder body are subaerial, and the inside piston that is equipped with of this cylinder body 8, the piston deviate from the one end rigid coupling of pipe in the water 7 have the piston rod that the level set up, and the piston rod is connected with horizontal sliding mounting and is in the cushion cap slip slat 17, cushion cap fixed mounting, the piston rod leans on piston department cover to have reset

spring

18, and 18 one end of this reset spring is connected on 8 inside. In addition, a through hole for the lower end of the sliding rod 10 to pass through is arranged on the sliding strip plate 17 and on the bearing platform, the through hole on the bearing platform is arranged opposite to the bottom end of the sliding rod 10, and when the piston is in the initial position limited by the return spring 18, the two through holes are completely staggered and are not communicated with each other.

When the water overflowed from the overflow pipe 6 enters the cylinder 8 to generate enough pressure, the piston is pushed to move, so that the two through holes are overlapped, and the sliding rod 10 can smoothly pass through the through holes. Meanwhile, the bottom of the filter plate 3 is also provided with a rectangular sliding plate 14 closely attached to the inner wall of the lower chamber, the sliding plate 14 is in sliding fit with the inner wall of the lower chamber and seals the inlet of the slag discharge pipeline 13 at the initial position, namely, during normal filtration, the sliding plate 14 blocks the inlet end of the slag discharge pipeline 13 to prevent the water after the lower filtration from flowing out of the pipeline. On the other hand, it is particularly important that the length of the present slide plate 14 in the vertical direction satisfies: after the sliding rod 10 passes through the two overlapped through holes, the sliding plate 14 supports the filter plate 3 in the lower chamber at such a height that the output side of the filter plate 3 close to the side of the slag discharge pipe 13 is connected with the inlet end of the slag discharge pipe 13, thereby facilitating an operator to smoothly shave the deposit on the filter plate 3. In addition, in this embodiment, a sensor 45 is disposed at the rear side below the through hole of the platform, so that when the sensor 45 detects that the sliding rod 10 penetrates through the through hole, the sensor 45 sends a command to a corresponding controller to control the valve to close, and the sensor 45 may be an automatic control element directly available in the market, such as an infrared sensor 45.

When the filtering equipment for sewage treatment is used, the water level of an upper chamber of a treatment tank 1 rises along with the blockage of a filter plate 3 by floccules or other impurity garbage, the overflow pipe 6 overflows into the overflow pipe 6, the overflow pipe 6 is vertically arranged, the overflow pipe 6 and the cylinder body 8 are filled with water along with the surge of the water level, a piston rod is pushed to move and compress a reset spring 18 under the action of high water pressure, a sliding slat 17 moves towards one side of a sliding rod 10, two through holes are overlapped, and the sliding rod 10 instantly falls into the through holes, meanwhile, when a sensor 45 detects that the sliding rod 10 passes through the front of the sliding rod, a signal is immediately transmitted to a corresponding controller to control a water inlet pipeline 2 to close and stop water, after residual water flows out, an operator cleans the filter plate 3 connected with a residue discharge pipeline 13 at the moment, and after precipitates on the filter plate 3 are scraped, the filter plate is carried out from the residue discharge pipeline, especially for a large treatment tank 1, workers do not need to enter the treatment tank 1 to dredge and clean.

In specific implementation, as shown in fig. 1, the side wall of the upper end of the treatment tank 1 is connected with the water inlet pipeline 2 for injecting water, so that water flows from top to bottom. A limiting block 19 can be further fixed on the bearing platform, the sliding strip plate 17 slides to the limiting block 19 to be prevented from sliding, and the two through holes are overlapped at the moment, so that the sliding rod 10 is prevented from falling into the through holes due to the fact that the sliding speed of the sliding strip plate 17 is too high due to too high pressure. In addition, the solid structure 11 is a cone, and the large end face of the solid structure faces downwards and is fixedly connected with the sliding rod 10 so as to enlarge the filtering area as much as possible. And the slag discharge pipeline 13 is a rectangular pipeline, so that the deposited matters can be better conveyed and the rolling of the rolling balls 5 is facilitated. More specifically, the support 9 includes three golf club-shaped support rods, and the three support rods are annularly arranged around the treatment tank 1, so that the support performance of the treatment tank 1 is improved. And the exit end of pipe in the water 7 is connected at the upper surface that cylinder body 8 deviates from slide slat 17 one end, the injected water of being convenient for, and be equipped with the access cover on the cylinder body 8 deviates from slide slat 17 one end terminal surface in order to seal cylinder body 8, the while is convenient for overhaul inside the clearance cylinder body 8.

Referring to fig. 2 to 4, specifically, the upper surface of the filter plate 3 is an inclined surface inclined downward toward the side of the residue discharge pipe 13, and the upper surface of the filter plate 3 is smooth. Still include the wedge rib 4 that a banding transversal personally submits triangle-shaped, wedge rib 4 deviate from the one side of inclined plane bottom with bin inside wall laminating down, the smooth inclined plane of wedge rib 4 is towards a side surface of inclined plane bottom, wedge rib 4 bottom surface with 3 sliding fit of filter plate, the bottom on the smooth inclined plane of wedge rib 4 is connected with a rope 28, a spin 5 that is located on 3 inclined plane bottoms of filter plate and leans on bin inside wall down is connected to the free end of rope 28. When the filter plate 3 slides downwards to a position connected with the inlet end of the slag discharging pipeline 13, the rolling balls 5 roll into the slag discharging pipeline 13 and drag the wedge-shaped ribs 4 to slide downwards along the inclination direction of the filter plate 3, and deposit on the filter plate 3 is scraped in the sliding process. Above-mentioned structure can make rubbish deposits such as floccule after the deposit can be struck off by automation fast, need not artifical adoption shovel etc. and strike off, and is very simple and convenient, utilizes spin 5's dead weight to drive wedge rib 4 and strikes off the deposit when steadily gliding on filter plate 3, avoids installing external drive equipment drive wedge rib 4 and slides, and simple structure is practical, and especially to floccule deposit effect on small-size processing jar 1 best, the most stable.

Based on the structure, in order to ensure that the wedge-shaped edge strips 4 can move upwards and reset after sliding downwards, the functions are perfected, and furthermore, as shown in fig. 10, a feeler lever 20 can be slidably extended from the side wall of the through hole of the bearing platform, one end of the feeler lever 20 is hemispherical and can extend into the through hole, the other end is positioned in the mounting cavity in the bearing platform and is fixedly connected with the metal rod 24, the metal rod 24 is connected with a power supply through a lead and is sleeved with a cylindrical spring 25 outside, one end of the metal rod 24 is fixedly connected on the metal rod 24, the other end of the metal rod 24 extends into the guide hole of the insulating block 26 in a sliding fit manner, a metal block 27 is embedded in the guide hole of the insulating block 26, the metal block 27 is connected with the motor through a lead, the motor can drive the reel 22 to rotate, and the drag line 23 on the reel 22 penetrates through the side wall of the lower chamber and is connected to the surface of the wedge-shaped rib 4 attached to the inner side wall of the lower chamber. Specifically, the cylinder spring 25 naturally restrains the hemispherical head end of the feeler lever 20 in the through hole, and the metal rod 24 is separated from the metal block 27, so that when the slide lever 10 enters the through hole to press the feeler lever 20, the metal rod 24 contacts the metal block 27, and the motor drives the reel 22 to release the drag wire 23, and the metal rod 24 is separated from the metal block 27, and the motor drives the reel 22 to receive the drag wire 23. The cylindrical spring 25 is in a natural state, and on the other hand, the water inlet valve of the water inlet pipe is closed, so that the sensor 45 can be avoided, and the sensor and the water inlet pipe can be used simultaneously, thereby realizing double-control double-safety closing of the water inlet pipe 2.

Under the above-mentioned structure, when using, slide bar 10 slides down and extrudees, when promoting feeler lever 20, feeler lever 20 drives 24 endwise slip of metal rod, thereby metal rod 24 compression cylinder spring 25, and make metal rod 24 and metal block 27 contact, the motor rotates when the circuit switches on, reel 22 releases drags line 23, spin 5 can drive wedge rib 4 and slide this moment, and inlet channel 2 closes, rolling spin 5 drags the deposit on wedge rib 4 with smooth filter plate 3 to scrape off and take the downward movement, realize automatic clearance.

Based on the above structure, preferably, a telescopic rod 21 is further provided below the through hole of the bearing platform to extend into the through hole to push the hemisphere at the bottom end of the sliding rod 10 into the through hole of the sliding slat 17, so that the telescopic rod 21 is manually driven to push the sliding rod 10 upward when necessary. More preferably, as shown in fig. 1, an electromagnet 15 is further disposed at the bottom of the lower chamber opposite to the sliding plate 14, and the electromagnet 15 is energized when the sliding rod 10 enters the through hole to press the contact rod 20 and holds and fixes the sliding plate 14 in contact therewith, so as to prevent the filter plate 3 from bumping due to collision of the sliding plate 14 when moving down to the right position. During specific manufacturing, as shown in fig. 7, a splash guard 31 which is bent towards one side of the bottom end of the inclined surface can be processed at the top of the inclined surface of the wedge-shaped rib 4, so that deposited matters are pushed to move forwards when being scraped, the deposited matters are prevented from being left behind after passing over the wedge-shaped rib 4, and the wedge-shaped rib 4 provided with the splash guard 31 can be processed to be smaller in size and can be taken away by the splash guard 31. In addition, as shown in fig. 5-6, the bottom of the wedge-shaped rib 4 is provided with a protruding part 30 which is in sliding fit with a dovetail groove on the filter plate 3, and the dovetail groove is formed along the inclined direction of the smooth inclined surface of the filter plate 3, so that the wedge-shaped rib 4 is ensured to slide stably and never turn over, and is suitable for scraping large garbage. In order to discharge the deposit and prevent the rolling ball 5 from rolling out too far, and save the length of the rope 28, the bottom of the slag discharging pipeline 13 near the inlet end is provided with a section of fence plate for the deposit to fall, and the outlet end of the slag discharging pipeline 13 is covered with a pipeline door plate 29 in a normally closed manner. After the filter plate 3 moves downwards, the rolling ball 5 rolls to the pipeline door plate 29 to stop, and the deposit rushing into the slag discharge pipeline 13 can leak and be discharged from the fence plate. Of course, in order to avoid the rolling ball 5 rolling out of the slag discharge pipe with the unclosed outlet, the inlet end and the outlet end of the slag discharge pipe 13 are both opened, and the width of the inlet end is smaller than the length of the wedge-shaped rib 4, so that the wedge-shaped rib 4 cannot slide into the slag discharge pipe 13, and therefore the rolling ball 5 is rolled to the end and stops because the wedge-shaped rib 4 is fixed.

Specifically, in this embodiment, an extrusion device for extruding the deposit is further included, so that after the deposit is dried to some extent and water is squeezed out, the knot/lump is uniformly discharged. Referring to fig. 8, the extruding apparatus includes a receiving trough 32 disposed obliquely downward, an inlet at the top of the receiving trough 32 is connected to a position of the residue discharge pipe 13 for discharging the deposit, and a screw shaft 33, which is a conventional screw conveying shaft, is disposed in the receiving trough 32 along an oblique direction thereof, and is generally transported with a fluid in the pipe. The spiral shaft 33 is used for pushing and extruding the deposit to the bottom end of the receiving groove 32, a spiral extruding pipeline 38 is connected to the upper side wall of the bottom end of the receiving groove 32, and a plurality of draining holes are formed in the bottom of the receiving groove 32 close to the input end of the receiving groove, so that a part of water can be drained in advance when the deposit leaks into the receiving groove 32. Meanwhile, a buffer cavity 34 is further provided in the end plate at the bottom end of the material receiving groove 32 in a protruding manner outwards for the extruded deposit to flow in, as shown in fig. 9, a sliding pressure plate 35 connected by a pressure bearing spring 41 is slidably fitted in the buffer cavity 34, a sliding shaft 43 with conductivity is fixedly connected to one side of the sliding pressure plate 35 away from the material receiving groove 32, the sliding shaft 43 extends out of the buffer cavity 34 and faces a conductive seat 44, the conductive seat 44 and the sliding shaft 43 are respectively connected with a conducting wire, the two conducting wires are respectively connected to a controller for driving the hydraulic rod 36 and a power supply, and the hydraulic rod 36 is connected with a cut-in plate 37 for plugging the inlet end of the extrusion pipeline 38. The pressure-bearing spring 41 limits the sliding pressure plate 35 to be flush with the end plate under the natural state to close the cavity opening of the buffer cavity 34, namely the extrusion pipeline 38 is a normally closed pipeline at first and is opened only when enough sediments are accumulated at the bottom end of the material receiving groove 32 and the pressure is increased; that is: when enough deposits are in the receiving groove 32, the deposits push the sliding pressure plate 35 to move, so that the sliding shaft 43 is in contact with the electric conduction seat 44, the hydraulic rod 36 pushes the cutting plate 37 to open the inlet end of the extrusion pipeline 38, and the sliding shaft 43 and the electric conduction seat 44 are similar to a knife switch in function and are connected with a control circuit such as a controller for controlling the hydraulic rod 36.

When the structure is used, the deposit is discharged from the slag discharging pipeline 13 and falls on the water draining hole of the material receiving groove 32 for preliminary water draining, and then is conveyed downwards to the bottom end of the material receiving groove 32, as the deposit is more and more accumulated, the deposit at the bottom end expands and moves the sliding pressure plate 35 as the door plate of the cavity opening of the buffer cavity 34, the pressure-bearing spring 41 is compressed, when the sliding pressure plate is compressed to a sufficient position, the sliding shaft 43 is in conductive connection with the conductive seat 44, so that the circuit of the control hydraulic rod 36 is conducted, the hydraulic rod 36 performs contraction action, the cutting plate 37 is taken away from the inlet end of the basic pipeline, the extrusion pipeline 38 is opened, the deposit compacted to a certain degree enters the extrusion pipeline 38, then as the deposit is continuously accumulated, the deposit which is continuously compressed is filled in the extrusion pipeline 38, and is finally extruded from the outlet end of the basic pipeline, and naturally breaks into sections due to the dead weight of the deposit, especially for floccules or other garbage with uniform and stable types, the lengths of the sections are stable and consistent, and the subsequent recycling treatment is convenient.

Based on the above structure, preferably, the buffer chamber 34 is cylindrical, the sliding pressure plate 35 is a disk-shaped structure, and as shown in fig. 9, a pair of limiting rods 42 parallel to the sliding shaft 43 is further fixed to the end surface of the sliding pressure plate 35 where the sliding shaft 43 is provided, and the limiting rods 42 are used for contacting with the inner side wall of the buffer chamber 34 to limit the sliding limit position of the sliding pressure plate 35, so as to protect the pressure spring 41 and limit the compression limit amount of the deposit. And the electric conduction seat 44 is arranged in a T-shaped sliding groove on one guide rail in a sliding fit mode and is connected with the guide rail through a T-shaped bolt, so that the position of the electric conduction seat 44 is adjusted, the movement limit position of the sliding shaft 43 is adjusted, and the limit compression amount of the deposit is adjusted. More preferably, a water receiving groove 40 is arranged below the draining holes, and the water receiving groove 40 and the material receiving groove 32 are inclined in the same direction so as to receive the drained water. It is also possible to arrange the draining holes on a draining deck, which is hingedly mounted at the bottom of the receiving trough 32 and is part of the bottom of the receiving trough 32, so that the draining deck 39 is opened for separate flushing.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a filtration equipment for sewage treatment, is including the treatment tank that is used for splendid attire sewage and install the filter plate in the treatment tank, and the inlet channel is installed at treatment tank deck portion, installs valve, its characterized in that on the inlet channel: the treatment tank is supported and fixed on the ground through a support, the filter plate can be installed in the treatment tank in a vertically sliding mode, the treatment tank is divided into an upper bin and a lower bin by the filter plate, the lower bin is vertically arranged and is in a cuboid shape, the initial position of the filter plate is installed at the top of the lower bin, and a slag discharge pipeline is connected to the side wall of the lower bin below the filter plate; the central part of the filter plate is of a solid structure, the rest parts of the filter plate are of hollow structures, a sliding rod is vertically and fixedly connected to the bottom of the solid structure, and the lower end of the sliding rod penetrates through the lower bin and is propped against a sliding strip plate below the treatment tank;

the sliding bar plate and the bearing platform are respectively provided with a through hole for the lower end of the sliding rod to pass through, the through hole on the bearing platform is arranged right opposite to the bottom end of the sliding rod, when the piston is positioned at the initial position limited by the return spring, the two through holes are completely staggered without being communicated with each other, and when water overflowing from the overflow pipe enters the cylinder body and generates enough pressure, the piston is pushed to move so as to cause the two through holes to be overlapped;

the bottom of the filter plate is also provided with a sliding plate closely attached to the inner wall of the lower chamber, and the sliding plate is in sliding fit with the inner wall of the lower chamber and seals the inlet of the slag discharge pipeline at the initial position; meanwhile, the length of the sliding plate in the vertical direction meets the following requirements: after the sliding rod passes through the two overlapped through holes, the sliding plate supports the filter plate in the lower chamber by the height that the output side of the filter plate close to one side of the slag discharge pipeline is connected with the inlet end of the slag discharge pipeline; and a sensor is arranged on the rear side below the through hole of the bearing platform, so that when the sensor detects that the sliding rod penetrates out of the through hole, the sensor sends an instruction to a corresponding controller to control the valve to be closed.

2. The filtering apparatus for sewage treatment as claimed in claim 1, wherein: the side wall of the upper end of the treatment tank is connected with the water inlet pipeline for injecting water.

3. The filtering apparatus for sewage treatment as claimed in claim 1, wherein: and a limiting block is also fixed on the bearing platform, the sliding strip plate slides to the limiting block and is prevented from sliding, and the two through holes are overlapped at the moment.

4. The filtering apparatus for sewage treatment as claimed in claim 1, wherein: the solid structure is a cone, the large end face of the solid structure faces downwards, and the sliding rod is fixedly connected with the solid structure.

5. The filtering apparatus for sewage treatment as claimed in claim 1, wherein: the slag discharge pipeline is a rectangular pipeline.

6. The filtering apparatus for sewage treatment as claimed in claim 1, wherein: the support comprises three golf club-shaped support rods which are annularly arranged around the treatment tank.

7. The filtering apparatus for sewage treatment as claimed in claim 1, wherein: the outlet end of the downpipe is connected to the upper surface of one end, away from the sliding strip plate, of the cylinder body, and an access cover is arranged on the end face, away from the sliding strip plate, of the cylinder body to seal the cylinder body.