CN113457260A

CN113457260A - Sewage treatment filter

Info

Publication number: CN113457260A
Application number: CN202111024371.XA
Authority: CN
Inventors: 刘猛
Original assignee: Jiangsu Dapeng Environmental Protection Technology Co ltd
Current assignee: Jiangsu Dapeng Environmental Protection Technology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2021-10-01
Anticipated expiration: 2041-09-02
Also published as: CN113457260B

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment filter, which comprises a fixed base, supporting rods and a filtering device, wherein the supporting rods are symmetrically arranged at the front side and the rear side of the upper end surface of the fixed base; the domestic sewage filtering device can solve the problems that solid garbage is easy to accumulate on the filtering device and is difficult to clean in time after domestic sewage is filtered for a period of time, the traditional domestic sewage filtering device is simple in structure, domestic sewage generally passes through the filtering device directly to be filtered, garbage with different volumes cannot be separated and recycled, and the like; the invention designs the filter for filtering sewage by using centrifugal force, which can be cleaned in time while filtering, ensures the filtering efficiency of the filtering device, and reduces the burden of the filtering device by carrying out grading treatment and separate discharging on the cleaned garbage.

Description

Sewage treatment filter

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment filter.

Background

Sewage is effluent from life and production which is polluted to a certain extent, and can be classified into four types according to the sewage source: industrial wastewater, domestic sewage, commercial sewage and surface runoff, wherein the domestic sewage is the most common wastewater discharged in daily life of residents, and the domestic sewage mainly comes from residential buildings and public buildings, such as houses, institutions, schools, public places, toilets of industrial enterprises and the like; the pollutants contained in the domestic sewage are mainly organic matters and a large number of pathogenic microorganisms, which are easy to decay to generate foul smell, and bacteria and pathogens propagate in large quantities by taking the organic matters in the domestic sewage as nutrients, so that infectious diseases can spread and spread, therefore, the domestic sewage needs to be treated before being discharged.

At present, the following defects are generally existed in the treatment of domestic sewage: 1. when domestic sewage is filtered, filtering devices such as a filter screen and the like are usually directly adopted for filtering, solid garbage is easy to accumulate on the filtering devices after filtering for a period of time and is difficult to clean in time, and the filtering effect of the filtering devices is reduced in the working process; 2. traditional domestic sewage filter equipment structure is comparatively simple, all directly passes filter equipment with domestic sewage usually and filters, and domestic sewage contains the rubbish of various sizes, and direct filtration can aggravate filtration equipment's burden and can't carry out recycle to the rubbish separation of different volumes.

Disclosure of Invention

The technical scheme is as follows: in order to solve the problems, the invention specifically adopts the following technical scheme that the sewage treatment filter comprises a fixed base, supporting rods and a filtering device, wherein the supporting rods are symmetrically arranged on the front side and the rear side of the upper end face of the fixed base, and the filtering device is connected between the upper ends of the supporting rods.

Filter equipment include a fixed cylinder, the end cover, actuating mechanism, the slide bar, filter equipment, discharge mechanism, discharging pipe and dead lever, even there is a fixed cylinder between the upper end of bracing piece, the upper end of a fixed cylinder is provided with the end cover, the top of end cover is provided with actuating mechanism by the right side, the left and right sides symmetry of a fixed cylinder inner wall is provided with the slide bar, filter equipment slides and sets up the opposite side at the slide bar, discharge mechanism is installed to filter equipment's downside, the left end downside intercommunication of a fixed cylinder has the discharging pipe, the left side of discharging pipe is passed through the dead lever and is installed on unable adjustment base.

Filtering mechanism include the cartridge filter No. one, the annular chute, No. two cartridge filters, the turning block, the ring channel, No. one filter pores and No. two filter pores, the inboard of solid fixed cylinder is provided with the cartridge filter No. one, the annular chute has been seted up on the outer wall of a cartridge filter, the looks remote site slidable mounting of slide bar is in the annular chute, the inboard of a cartridge filter is provided with the cartridge filter No. two, the turning block is installed to the up end of No. two cartridge filters, the ring channel has been seted up to the lower extreme of end cover, the turning block slides and sets up in the ring channel, the lateral wall from the top down of a cartridge filter is equipped with a plurality of No. one filter pores along its circumference distribution, the lateral wall from the top down of No. two cartridge filters the pores of being equipped with a plurality of No. two along its circumference distribution.

Preferably, the first filtering hole and the second filtering hole are both horn-shaped, the opening at one end, close to the central shaft of the fixed cylinder, of the first filtering hole and the second filtering hole is smaller, the first filtering hole and the second filtering hole are the same in shape, and the size of the first filtering hole is smaller than that of the second filtering hole.

Preferably, the middle part of the upper end face of the fixed base is provided with a collecting cabinet in a sliding manner, and the collecting cabinet is positioned below the discharging mechanism.

Preferably, the left and right sides symmetry of end cover be provided with the inserted bar, the inserted bar slides and runs through the end cover and inserts and establish on the outer wall of fixed section of thick bamboo, the one side that the inserted bar is located fixed section of thick bamboo is installed elastic telescopic rod perpendicularly, trapezoidal screens piece is installed to elastic telescopic rod's expansion end, trapezoidal screens piece joint is on the outer wall of fixed section of thick bamboo.

Preferably, the driving mechanism comprises an inner gear ring, an outer gear ring, a gear and a rotating motor, location axle, the annular, No. two annuluses, gag lever post and clearance branch chains, the ring gear is installed to the upper end of cartridge filter, the upper end of No. two cartridge filters even has outer ring gear, the meshing has the gear between ring gear and the outer ring gear, the upper end middle part of gear and rotating electrical machines's output shaft, rotating electrical machines's output shaft passes through the bearing and rotates with the end cover to be connected, rotating electrical machines passes through the rack-mount in the end cover upper end, the lower extreme middle part of gear is fixed with the location axle, the annular has been seted up to the upside of cartridge filter inside wall No. one, No. two annuluses have been seted up to the upside of cartridge filter lateral wall No. two, slidable mounting has the gag lever post between an annular and No. two annuluses the bearing to rotate and installs the upper end at the gag lever post, the clearance branch chain is all installed to the lower extreme right side of gag lever post and the upper end of end cover.

Preferably, discharge mechanism include circular ejection of compact board, the connecting rod, supporting spring, annular ejection of compact board, compression spring, the holding tank, taut rope and pneumatic cylinder, the below of cartridge filter is provided with circular ejection of compact board No. one, the connecting rod is installed to circular ejection of compact board front and back bilateral symmetry, the connecting rod passes through supporting spring and is connected with unable adjustment base's upper end, circular ejection of compact board is connected through sliding fit's mode with annular ejection of compact board, and the connecting rod is located the below of annular ejection of compact board, both ends are connected with the bottom of solid fixed cylinder through compression spring about the annular ejection of compact board, the holding tank has been seted up to the left and right sides symmetry of annular ejection of compact board inside wall, and the holding tank passes through taut rope and the outer wall connection of circular ejection of compact board, the pneumatic cylinder is installed to both sides symmetry around the solid fixed cylinder outer wall downside, the ejecting end and the connecting rod upper end of pneumatic cylinder are connected.

Preferably, the up end of circular ejection of compact board and annular ejection of compact board hug closely respectively at the lower extreme of No. two cartridge filters and a cartridge filter, the up end of circular ejection of compact board is provided with the sealing washer No. one, a sealing washer inboard is provided with the arc bulge shell, the party that the up end of annular ejection of compact board is close to a cartridge filter inside wall is provided with the sealing washer No. two, the inclined ring board is installed to the up end of annular ejection of compact board.

Preferably, the cleaning branch chain comprises a cleaning rod, a groove, a material pushing block and a reset spring, the cleaning rod is installed on the right side of the lower end of the limiting rod and on the lower end of the end cover, the groove is evenly formed in the right end face of the cleaning rod from top to bottom, the material pushing block is installed in the groove in a sliding mode, and the material pushing block is connected with the groove through the reset spring.

Compared with the prior art, the invention has the beneficial effects that: 1. the invention designs a filter for filtering sewage by using centrifugal force, which adopts cylindrical equipment to filter domestic sewage, can clean garbage attached to the inner wall of a filter cylinder in time while filtering, ensures the filtering efficiency of a filtering device, reduces the burden of the filtering device by carrying out classification treatment and respective discharging on the cleaned garbage, and is beneficial to carrying out respective recovery treatment on the garbage with different volumes.

2. According to the invention, domestic sewage in the filter cylinder I and the filter cylinder II is filtered by rotating the filter cylinder I and the filter cylinder II through centrifugal force, the inner walls of the filter cylinder I and the filter cylinder II in the rotation are cleaned in time through the cleaning branched chain, and garbage can not block the filter holes I and the filter holes II, so that the working efficiency during filtering is ensured.

3. The domestic sewage treatment device filters domestic sewage through the holes with different sizes arranged on the first filter cylinder and the second filter cylinder, distinguishes domestic garbage with different volumes, filters domestic garbage with larger volume through the second filter cylinder, filters domestic garbage with smaller volume through the first filter cylinder, and respectively transports the domestic garbage out through the discharging mechanism for recycling treatment.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of a first three-dimensional structure of the present invention.

Fig. 2 is a second perspective view of the present invention.

Fig. 3 is a third perspective view of the present invention.

Fig. 4 is a cross-sectional view of the present invention.

Fig. 5 is an enlarged view of a portion of the invention at X of fig. 4.

Fig. 6 is a partial enlarged view of the invention at Y of fig. 4.

Fig. 7 is an enlarged view of the invention at Z of fig. 4.

In the figure: 1. a fixed base; 11. a collection cabinet; 2. a support bar; 3. a filtration device; 31. a fixed cylinder; 32. an end cap; 321. inserting a rod; 322. an elastic telescopic rod; 323. a trapezoidal clipping block; 33. a drive mechanism; 331. an inner gear ring; 332. an outer ring gear; 333. a gear; 334. a rotating electric machine; 335. positioning the shaft; 336. a first ring groove; 337. a second ring groove; 338. a limiting rod; 339. cleaning the branched chain; 391. cleaning the rod; 392. a groove; 393. a material pushing block; 394. a return spring; 34. a slide bar; 35. a filtering mechanism; 351. a first filter cartridge; 352. an annular chute; 353. a second filter cartridge; 354. rotating the block; 355. an annular groove; 356. a first filtering hole; 357. a second filtering hole; 36. a discharging mechanism; 361. a circular discharging plate; 362. a connecting rod; 363. a support spring; 364. an annular discharge plate; 365. a compression spring; 366. accommodating grooves; 367. tensioning the rope; 37. a discharge pipe; 38. and (5) fixing the rod.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1 and 2, a sewage treatment filter comprises a fixed base 1, support rods 2 and a filtering device 3, wherein the support rods 2 are symmetrically arranged on the front side and the rear side of the upper end face of the fixed base 1, and the filtering device 3 is connected between the upper ends of the support rods 2.

Referring to fig. 2, 3 and 4, the filtering apparatus 3 includes a fixed cylinder 31, an end cover 32, a driving mechanism 33, a sliding rod 34, a filtering mechanism 35, a discharging mechanism 36, a discharging pipe 37 and a fixing rod 38, the fixed cylinder 31 is connected between the upper ends of the supporting rods 2, the end cover 32 is arranged at the upper end of the fixed cylinder 31, the driving mechanism 33 is arranged on the right side of the top of the end cover 32, the sliding rod 34 is symmetrically arranged on the left and right sides of the inner wall of the fixed cylinder 31, the filtering mechanism 35 is slidably arranged on the opposite side of the sliding rod 34, the discharging mechanism 36 is arranged on the lower side of the filtering mechanism 35, the discharging pipe 37 is communicated with the lower side of the left end of the fixed cylinder 31, the left side of the discharging pipe 37 is arranged on the fixed base 1 through the fixing rod 38, a feeding port is arranged in the middle part of the end cover 32, when the filtering apparatus works, domestic sewage is poured from the feeding port to flow into the filtering mechanism 35, the filtering mechanism 35 is driven by the driving mechanism 33 to work, so that the filtering mechanism 35 performs stage filtering on the domestic sewage, the filtered sewage flows into the fixed cylinder 31 and flows out from the discharge pipe 37, the filtered domestic garbage is left in the filtering mechanism 35, and after working for a period of time, the domestic garbage is respectively transported out and collected through the discharge mechanism 36.

Referring to fig. 3, the insertion rods 321 are symmetrically arranged on the left side and the right side of the end cover 32, the insertion rods 321 penetrate through the end cover 32 in a sliding manner and are inserted into the outer wall of the fixed cylinder 31, the elastic expansion rod 322 is vertically installed on one side of the insertion rods 321 located in the fixed cylinder 31, the trapezoidal clamping block 323 is installed at the movable end of the elastic expansion rod 322, the trapezoidal clamping block 323 is clamped on the outer wall of the fixed cylinder 31, during specific work, the insertion rods 321 are clamped on the outer wall of the fixed cylinder 31 to fix the position of the end cover 32, so that the fixed cylinder 31 and the end cover 32 are prevented from sliding relatively when the driving mechanism 33 works, and when the end cover 32 needs to be moved out, the insertion rods 321 are pulled out, so that the trapezoidal clamping block 323 leaves the fixed cylinder 31, and then the end cover 32 is moved out.

Referring to fig. 2 and 4, the filtering mechanism 35 includes a first filter cylinder 351, an annular chute 352, a second filter cylinder 353, a rotating block 354, an annular groove 355, a first filter hole 356 and a second filter hole 357, the first filter cylinder 351 is disposed inside the fixed cylinder 31, the annular chute 352 is disposed on the outer wall of the first filter cylinder 351, the opposite end of the sliding rod 34 is slidably mounted in the annular chute 352, the second filter cylinder 353 is disposed inside the first filter cylinder 351, the rotating block 354 is mounted on the upper end surface of the second filter cylinder 353, the annular groove 355 is disposed at the lower end of the end cap 32, the rotating block 354 is slidably disposed in the annular groove 355, a plurality of first filter holes 356 distributed along the circumferential direction of the first filter cylinder 351 are disposed on the side wall of the first filter cylinder 351 from top to bottom, a plurality of second filter holes 357 distributed along the circumferential direction of the second filter cylinder 353 are disposed on the side wall of the second filter cylinder from top to bottom, and the first filter holes 356 and the second filter holes 357 are both in a horn shape, the openings of the first filtering hole 356 and the second filtering hole 357 near the central axis of the fixed cylinder 31 are smaller; the first filtering holes 356 and the second filtering holes 357 are identical in shape, the first filtering holes 356 are smaller than the second filtering holes 357, and domestic waste with different volumes can be filtered respectively, when the domestic waste filtering device works specifically, domestic sewage is poured into the first filtering cylinder 351 through the feeding hole, the first filtering cylinder 351 and the second filtering cylinder 353 are driven to rotate in opposite directions through the driving mechanism 33, the filtering effect is improved through rotation in opposite directions, in the process, the first filtering cylinder 351 drives the annular chute 352 to rotate, the movement of the first filtering cylinder 351 is limited and supported through the sliding rod 34, the second filtering cylinder 353 drives the rotating block 354 to rotate in the annular groove 355, the second filtering cylinder 353 is limited and supported through the rotating block 354, in the process that the first filtering cylinder 351 and the second filtering cylinder 353 rotate, the domestic sewage is in contact with the first filtering holes 356 and the second filtering holes 357, and carry out filtration treatment to domestic sewage through filtering hole 356 and No. two filtering hole 357, the great domestic waste of volume stops in No. two cartridge filter 353 after being filtered, and the less domestic waste of volume stops in No. one cartridge filter 351 after being filtered.

Referring to fig. 3, 4 and 5, the driving mechanism 33 includes an inner gear ring 331, an outer gear ring 332, a gear 333, a rotating electrical machine 334, a positioning shaft 335, a first ring groove 336, a second ring groove 337, a limiting rod 338 and a cleaning branched chain 339, the inner gear ring 331 is installed at the upper end of the first filter cylinder 351, the outer gear ring 332 is connected to the upper end of the second filter cylinder 353, the gear 333 is engaged with the inner gear ring 331 and the outer gear ring 332, the middle part of the upper end of the gear 333 is connected with an output shaft of the rotating electrical machine 334, the output shaft of the rotating electrical machine 334 is rotatably connected with the end cover 32 through a bearing, the rotating electrical machine 334 is installed at the upper end of the end cover 32 through a frame, the positioning shaft 335 is fixed to the middle part of the lower end of the gear 333, the first ring groove 336 is formed on the upper side of the inner side wall of the first filter cylinder 351, the second ring groove 337 is formed on the upper side of the outer side wall of the second filter cylinder 353, the limiting rod 338 is slidably installed between the first ring groove 336 and the second ring groove 337, the lower end of the positioning shaft 335 is rotatably mounted at the upper end of a limiting rod 338 through a bearing, cleaning branched chains 339 are mounted on the inner side wall of a first filter cylinder 351 at the lower end of the limiting rod 338 and the inner side wall of a second filter cylinder 353 at the lower end of an end cover 32, the sections of a first annular groove 336 and a second annular groove 337 are both arc-shaped, the two ends of the limiting rod 338 are also arc-shaped, the axial distance of the limiting rod 338 is fixed, the two ends of the limiting rod 338 cannot slide out of the first annular groove 336 and the second annular groove 337, in specific work, the gear 333 is driven to rotate by the rotating motor 334, the inner gear ring 331 and the outer gear ring 332 are driven to rotate in opposite directions while the gear 333 rotates, so that the first filter cylinder 351 and the second filter cylinder rotate in opposite directions, at the moment, the first filter cylinder 351 and the second filter cylinder 353 rotate to drive the first annular groove 336 and the second annular groove 337 to rotate, under the limiting action of the positioning shaft 335, the position of the limiting rod 338 is kept unchanged, so that the cleaning branched chain 339 on the limiting rod 338 can clean the inner wall of the first filter cylinder 351, and meanwhile, the second filter cylinder 353 is cleaned through the cleaning branched chain 339 on the end cover 32.

Referring to fig. 4 and 7, the cleaning branched chain 339 includes a cleaning rod 391, a groove 392, a pushing block 393 and a return spring 394, the cleaning rod 391 is installed on the right side of the lower end of the limiting rod 338 and the lower end of the end cover 32, the groove 392 is evenly opened on the right end surface of the cleaning rod 391 from top to bottom, the pushing block 393 is installed in the groove 392 in a sliding manner, the pushing block 393 is connected with the groove 392 through the return spring 394, in the specific work, when the first filter cylinder 351 and the second filter cylinder 353 are used for filtering, the household garbage on the first filter cylinder 351 and the second filter cylinder 353 is scraped through the cleaning rod 391, the household garbage is prevented from blocking the first filter hole 356 and the second filter hole 357, meanwhile, the scraped household garbage falls into the bottoms of the first filter cylinder 351 and the second filter cylinder 353 again, and moves upwards again to contact with the first filter hole 356 and the second filter hole 357 when centrifugal filtration is performed, the centrifugal filtering effect is improved, and under the elastic extrusion action of the return spring 394, when the pushing block 393 is in contact with the first filtering hole 356 or the second filtering hole 357, garbage in the first filtering hole 356 or the second filtering hole 357 is pushed out in an extruding mode, so that blockage is further prevented.

Referring to fig. 3, 4 and 6, the discharging mechanism 36 includes a circular discharging plate 361, a connecting rod 362, a supporting spring 363, an annular discharging plate 364, a compression spring 365, a holding groove 366, a tensioning rope 367 and hydraulic cylinders, the circular discharging plate 361 is disposed below the first filter cylinder 351, the connecting rods 362 are symmetrically installed at the front and rear sides of the circular discharging plate 361, the connecting rods 362 are connected with the upper end of the fixing base 1 through the supporting spring 363, the circular discharging plate 361 and the annular discharging plate 364 are connected in a sliding fit manner, the connecting rods 362 are located below the annular discharging plate 364, the left and right ends of the annular discharging plate 364 are connected with the bottom end of the fixing cylinder 31 through the compression spring 365, the holding grooves 366 are symmetrically installed at the left and right sides of the inner side wall of the annular discharging plate 364, the holding grooves 366 are connected with the outer wall of the circular discharging plate 361 through the tensioning rope 367, the hydraulic cylinders are symmetrically installed at the front and rear sides of the lower side of the outer wall of the fixing cylinder 31, the ejection end of the hydraulic cylinder is connected with the upper end of the connecting rod 362, and the initial state of the tensioning rope 367 is a loose state; the upper end surfaces of the circular discharging plate 361 and the annular discharging plate 364 are respectively clung to the lower ends of the second filter cylinder 353 and the first filter cylinder 351, the upper end surface of the circular discharging plate 361 is provided with a first sealing ring, the inner side of the first sealing ring is provided with an arc convex shell, one end surface of the annular discharging plate 364, which is close to the inner side wall of the first filter cylinder 351, is provided with a second sealing ring, the upper end surface of the annular discharging plate 364 is provided with an inclined ring plate, the sealing effect of the circular discharging plate 361 and the annular discharging plate 364 is improved through the first sealing ring and the second sealing ring, the arc convex shell and the inclined ring plate are designed to facilitate the sliding-out of the domestic garbage, when the filter mechanism 35 works for a period of time, the first filter cylinder 351 and the second filter cylinder 353 are both provided with a proper amount of domestic garbage, the connecting rod 362 is pushed by the hydraulic cylinder to move downwards and compress the supporting spring 363, so that the circular discharging plate moves downwards to a proper position and is far away from the second filter cylinder 353, thereby make the great domestic waste of volume follow No. two cartridge filter 353 internal-flow and flow in collection cabinet 11, after collection cabinet 11 collects and accomplish the back domestic waste in with collection cabinet 11 and pour out and collect, again with collection cabinet 11 place again in discharge mechanism 36 below, continue to promote connecting rod 362 downstream through the pneumatic cylinder this moment, thereby make circular discharge plate 361 continue downstream and take up taut rope 367 thereupon, circular discharge plate 361 continues downstream after taut rope 367 is taut, make taut rope 367 drive annular discharge plate 364 downstream and leave cartridge filter 351, the rubbish in cartridge filter 351 falls into and collects in collection cabinet 11.

The middle part of the upper end face of the fixed base 1 is provided with a collection cabinet 11 in a sliding mode, the collection cabinet 11 is located below the discharging mechanism 36, the large-size domestic garbage sliding out of the discharging mechanism 36 is collected through the collection cabinet 11, the collection cabinet 11 is moved out and the garbage in the collection cabinet is poured out and collected, then the collection cabinet 11 is placed below the discharging mechanism 36, the small-size domestic garbage is collected and processed respectively.

The working steps of the invention are as follows: s1: domestic sewage is poured into the first filter cylinder 351 through the feeding hole.

S2: drive a filter cylinder 351 and a filter cylinder 353 through actuating mechanism 33 and carry out the rotation of opposite direction, at this in-process, a filter cylinder 351 drives annular spout 352 rotatory, carries out spacing and support through slide bar 34 to a filter cylinder 351's motion, and No. two filter cylinders 353 drives turning block 354 at ring channel 355 internal rotation, carries out spacing and support to No. two filter cylinders 353 through turning block 354.

S3: in the process of a cartridge filter 351 and No. two cartridge filters 353 rotations, domestic sewage filters the hole 356 with No. one with No. two and filters the hole 357 contact to filter domestic sewage through filtering hole 356 with No. two and filter hole 357, the great domestic waste of volume is filtered the back and is stayed in No. two cartridge filters 353, the less domestic waste of volume is filtered the back and is stayed in cartridge filter 351.

S4: the household garbage with large volume sliding out from the discharging mechanism 36 is collected through the collecting cabinet 11, then the collecting cabinet 11 is moved out, the garbage in the collecting cabinet 11 is poured out and collected, then the collecting cabinet 11 is placed below the discharging mechanism 36, and then the household garbage with small volume is collected and respectively treated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a sewage treatment filter, includes unable adjustment base (1), bracing piece (2) and filter equipment (3), its characterized in that: the front and back sides of the upper end surface of the fixed base (1) are symmetrically provided with support rods (2), and a filtering device (3) is connected between the upper ends of the support rods (2);

the filtering device (3) comprises a fixed barrel (31), an end cover (32), a driving mechanism (33), a sliding rod (34), a filtering mechanism (35), a discharging mechanism (36), a discharging pipe (37) and a fixed rod (38), wherein the fixed barrel (31) is connected between the upper ends of the supporting rods (2), the end cover (32) is arranged at the upper end of the fixed barrel (31), the driving mechanism (33) is arranged on the top of the end cover (32) close to the right side, the sliding rods (34) are symmetrically arranged on the left side and the right side of the inner wall of the fixed barrel (31), the filtering mechanism (35) is arranged on the opposite side of the sliding rods (34) in a sliding mode, the discharging mechanism (36) is arranged on the lower side of the filtering mechanism (35), the discharging pipe (37) is communicated with the lower side of the left end of the fixed barrel (31), and the left side of the discharging pipe (37) is arranged on the fixed base (1) through the fixed rod (38);

filter mechanism (35) include a cartridge filter (351), annular spout (352), No. two cartridge filters (353), turning block (354), ring channel (355), No. one filter hole (356) and No. two filter hole (357), the inboard of fixed cylinder (31) is provided with a cartridge filter (351), annular spout (352) have been seted up on the outer wall of a cartridge filter (351), the opposite end slidable mounting of slide bar (34) is in annular spout (352), the inboard of a cartridge filter (351) is provided with No. two (353), turning block (354) are installed to the up end of No. two cartridge filters (353), ring channel (355) have been seted up to the lower extreme of end cover (32), turning block (354) slide setting is in ring channel (355), the lateral wall from the top down of a cartridge filter (351) is equipped with a plurality of No. one filter hole (356) along its circumference distribution, the lateral wall of a cartridge filter (353) is equipped with a plurality of No. two filter hole (357) along its circumference distribution from the top down to the bottom down ).

2. The sewage treatment filter of claim 1, wherein: no. one filter hole (356) and No. two filter hole (357) be loudspeaker forms, and No. one filter hole (356) and No. two filter hole (357) are close to the one end opening of fixed cylinder (31) center pin and are littleer, No. one filter hole (356) and No. two filter hole (357) the same and No. one filter hole (356) the size of size less than No. two filter hole (357) of shape.

3. The sewage treatment filter of claim 1, wherein: the middle part of the upper end face of the fixed base (1) is provided with a collection cabinet (11) in a sliding manner, and the collection cabinet (11) is positioned below the discharging mechanism (36).

4. The sewage treatment filter of claim 1, wherein: the left side and the right side of the end cover (32) are symmetrically provided with inserting rods (321), the inserting rods (321) penetrate through the end cover (32) in a sliding mode and are inserted into the outer wall of the fixed cylinder (31), one side, located in the fixed cylinder (31), of each inserting rod (321) is vertically provided with an elastic telescopic rod (322), the movable end of each elastic telescopic rod (322) is provided with a trapezoidal clamping block (323), and each trapezoidal clamping block (323) is clamped on the outer wall of the fixed cylinder (31).

5. The sewage treatment filter of claim 4, wherein: the driving mechanism (33) comprises an inner gear ring (331), an outer gear ring (332), a gear (333), a rotating motor (334), a positioning shaft (335), a first annular groove (336), a second annular groove (337), a limiting rod (338) and a cleaning branched chain (339), the inner gear ring (331) is installed at the upper end of the first filter cylinder (351), the outer gear ring (332) is connected to the upper end of the second filter cylinder (353), the gear (333) is meshed between the inner gear ring (331) and the outer gear ring (332), the middle part of the upper end of the gear (333) is connected with an output shaft of the rotating motor (334), the output shaft of the rotating motor (334) is rotatably connected with the end cover (32) through a bearing, the rotating motor (334) is installed at the upper end of the end cover (32) through a rack, the middle part of the lower end of the gear (333) is fixedly provided with the positioning shaft (335), the upper side of the inner side wall of the first filter cylinder (351) is provided with the first annular groove (336), no. two annular (337) have been seted up to the upside of No. two cartridge filter (353) lateral wall, and slidable mounting has gag lever post (338) between a annular (336) and No. two annular (337), and the lower extreme of location axle (335) passes through the bearing and rotates the upper end of installing at gag lever post (338), and clearance branch chain (339) are all installed to the lower extreme right side of gag lever post (338) and the upper end of end cover (32).

6. The sewage treatment filter of claim 1, wherein: the discharging mechanism (36) comprises a circular discharging plate (361), a connecting rod (362), a supporting spring (363), an annular discharging plate (364), a compression spring (365), a containing groove (366), a tensioning rope (367) and a hydraulic cylinder, wherein the circular discharging plate (361) is arranged below a first filter cylinder (351), the connecting rod (362) is symmetrically arranged at the front side and the rear side of the circular discharging plate (361), the connecting rod (362) is connected with the upper end of the fixed base (1) through the supporting spring (363), the circular discharging plate (361) is connected with the annular discharging plate (364) in a sliding fit manner, the connecting rod (362) is positioned below the annular discharging plate (364), the left end and the right end of the annular discharging plate (364) are connected with the bottom end of the fixed cylinder (31) through the compression spring (365), the containing grooves (366) are symmetrically arranged at the left side and the right side of the inner side wall of the annular discharging plate (364), and the accommodating groove (366) is connected with the outer wall of the circular discharging plate (361) through a tensioning rope (367), hydraulic cylinders are symmetrically arranged on the front side and the rear side of the lower side of the outer wall of the fixed cylinder (31), and the ejection ends of the hydraulic cylinders are connected with the upper end of the connecting rod (362).

7. The sewage treatment filter of claim 6, wherein: the upper end face of circular ejection of compact board (361) and annular ejection of compact board (364) hug closely respectively at the lower extreme of No. two cartridge filters (353) and cartridge filter (351), the up end of circular ejection of compact board (361) is provided with the sealing washer No. one, the sealing washer inboard is provided with the arc convex shell, the up end of annular ejection of compact board (364) is close to the party of a cartridge filter (351) inside wall and is provided with the sealing washer No. two, the inclined ring board is installed to the up end of annular ejection of compact board (364).

8. The sewage treatment filter of claim 5, wherein: cleaning branch chain (339) including cleaning rod (391), recess (392), ejector pad (393) and reset spring (394), cleaning rod (391) are all installed to the lower extreme right side of gag lever post (338) and the lower extreme of end cover (32), evenly set up recess (392) from the top down on the right-hand member face of cleaning rod (391), slidable mounting has ejector pad (393) in recess (392), ejector pad (393) are connected with recess (392) through reset spring (394).