CN112023501B - Horizontal sewage filtering system and sewage filtering method thereof - Google Patents
Horizontal sewage filtering system and sewage filtering method thereof Download PDFInfo
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- CN112023501B CN112023501B CN202010932437.4A CN202010932437A CN112023501B CN 112023501 B CN112023501 B CN 112023501B CN 202010932437 A CN202010932437 A CN 202010932437A CN 112023501 B CN112023501 B CN 112023501B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/25—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow frames axially mounted on a hollow rotary shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/648—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
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Abstract
The invention discloses a horizontal sewage filtering system and a sewage filtering method thereof, and the system comprises a frame, a sewage filtering cylinder, a sewage input pipeline, a sewage output pipeline, a rotary sewage filtering bent frame and a solid impurity squeezing and water filtering device; the sewage input into the sewage filter cartridge through the sewage input pipeline is output from the sewage output pipeline after being filtered; the rotary sewage filtering bent frame is arranged in the sewage filtering cylinder, and rotates circumferentially relative to the sewage filtering cylinder to filter sewage and collect filtered solid impurities in the rotary sewage filtering bent frame; the sewage filter cylinder is provided with an impurity outlet, and the solid impurities collected by the rotary sewage filtering bent frame are discharged out of the sewage filter cylinder through the impurity outlet; the solid impurity squeezing and water filtering device is in butt joint with the impurity discharge port and is used for squeezing and water filtering the solid impurities. According to the horizontal sewage filtering system and the sewage filtering method thereof provided by the invention, solid impurities are thoroughly filtered out, the filtering effect is good, and the efficiency is high.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a horizontal sewage filtering system and a sewage filtering method thereof.
Background
In a sewage treatment system, a mechanical grating is used for filtering sewage in a first process, but the filtering effect on solid impurities is poor, so that the solid impurities are not filtered thoroughly, and the efficiency is low. In order to solve the problems, the invention designs a horizontal sewage filtering system and a sewage filtering method thereof based on the technology of improving the filtering thoroughness and high efficiency of solid impurities, and the horizontal sewage filtering system has the advantages of thorough filtering of the solid impurities, good filtering effect and high efficiency.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the horizontal sewage filtering system and the sewage filtering method thereof, which have the advantages of thorough solid impurity filtering, good filtering effect and high efficiency.
The technical scheme is as follows: in order to achieve the purpose, the horizontal sewage filtering system comprises a frame, a sewage filtering cylinder, a sewage input pipeline, a sewage output pipeline, a rotary sewage filtering bent frame and a solid impurity squeezing and water filtering device, wherein the frame is provided with a water inlet and a water outlet;
the sewage filter cartridge is supported by the frame to be in a horizontal posture, the sewage input pipeline is in butt joint with the front end of the sewage filter cartridge, the sewage output pipeline is in butt joint with the rear end of the sewage filter cartridge, and sewage input into the sewage filter cartridge through the sewage input pipeline is output from the sewage output pipeline after being filtered;
the rotary sewage filtering bent frame is arranged in the sewage filtering cylinder, the rotary sewage filtering bent frame is arranged along the axial direction of the sewage filtering cylinder in the length direction, and the rotary sewage filtering bent frame is arranged along the radial direction of the sewage filtering cylinder in the width direction; the rotary sewage filtering bent frame rotates relative to the sewage filtering cylinder in the circumferential direction to filter sewage and collect filtered solid impurities in the rotary sewage filtering bent frame;
the sewage filter cylinder is provided with an impurity outlet, and solid impurities collected by the rotary sewage filter bent frame are discharged out of the sewage filter cylinder through the impurity outlet; the solid impurity squeezing and water filtering device is in butt joint with the impurity discharge port and is used for squeezing and filtering water of solid impurities.
Further, the sewage filter cylinder comprises a cylinder body, a front cylinder cover, a rear cylinder cover, a front rubber sealing ring and a rear rubber sealing ring; the cylinder body is horizontally arranged on the rack; the front cylinder cover extrudes the front rubber sealing ring to cover the front cylinder opening of the cylinder body, the front cylinder cover is provided with a sewage inlet for communicating the cylinder body, and the sewage input pipeline is in butt joint with the sewage inlet; the rear cover extrudes the rear rubber sealing ring to cover the rear end opening of the barrel, the rear cover is provided with a sewage outlet which is communicated with the barrel, and the sewage output pipeline is in butt joint with the sewage outlet.
Furthermore, the rotary sewage filtering bent frame comprises a servo motor, a rotating shaft, a sewage filtering plate, a first spiral conveyor and a roll shaft; the front barrel cover is provided with a front hollow frame, the rear barrel cover is provided with a rear hollow frame, and the rotating shaft is rotatably arranged on the front hollow frame and the rear hollow frame; the servo motor is arranged on the front-end hollow frame or the rear-end hollow frame through a servo motor connecting part and is in driving connection with the rotating shaft; the sewage filter plate, the first spiral conveyor and the roll shafts are all two, the sewage filter plate, the first spiral conveyor and the roll shafts are sequentially connected to the side surface of the rotating shaft, and the rotating shaft, the two sewage filter plates, the two first spiral conveyors and the two roll shafts are positioned on the same plane; the sewage filter plate is of a hollow structure and is communicated with a first outer pipe of the first spiral conveyor; the surface of the sewage filter plate, which faces the sewage, is of a sewage inlet hollowed-out surface structure, the surface of the sewage filter plate, which is opposite to the sewage inlet hollowed-out surface structure, is of a sewage outlet hollowed-out surface structure, and the pipe surface of the first outer pipe of the first spiral conveyor, which is positioned on one side of the sewage outlet hollowed-out surface structure, is of a sewage outlet hollowed-out surface structure;
under servo motor drive pivot drove sewage filter, first screw conveyer and the synchronous circumferential direction of roller rotation state, the inner tube wall of roller roll extrusion sewage cartridge filter, sewage from sewage entering fretwork face structure entering in the sewage filter and from the discharge of sewage fretwork face structure, the solid impurity that filters out in the sewage filter carries under the circumferential direction centrifugation and realizes collecting in first screw conveyer, and the sewage in the first screw conveyer spills the fretwork face structure from sewage and spills.
Further, the sewage inlet hollowed-out surface structure is formed by uniformly arranging a plurality of water inlet holes on the surface of the sewage filter plate; the sewage discharge hollowed-out surface structure is formed by uniformly arranging a plurality of water outlet holes on the surface of the sewage filter plate; the sewage leaking hollow-out surface structure is formed by uniformly arranging a plurality of water leaking holes on the first outer pipe of the first spiral conveyor; the aperture of the water inlet hole is R1, the aperture of the water outlet hole is R2, the aperture of the water leakage hole is R3, and R1, R2 and R3 meet the following requirements: r1 > R2 > R3.
Furthermore, the first outer pipe of the first screw conveyer is provided with discharge ports, the two discharge ports of the two first screw conveyers are positioned on the same side, and each discharge port is provided with a discharge electric valve; the sewage filter cylinder is characterized in that the number of impurity discharge ports is two, and each impurity discharge port is provided with a discharge electric valve; the rotary sewage filtering bent frame rotates to be in a horizontal posture and under the state that the discharge port faces downwards, and the discharge port corresponds to the impurity discharge port in an up-and-down one-to-one mode.
Further, the solid impurity squeezing and water filtering device comprises a second screw conveyor, a water filtering tank and a water collecting tank; the two second screw conveyors are arranged in an inverted splayed shape, a feed inlet of each second screw conveyor is in butt joint with the discharging electric valve, and the tail ends of second outer tubes of the two second screw conveyors are respectively communicated with the water filtering box; the top of the water filtering box is provided with a box door, and the bottom of the water filtering box is provided with a water filtering supporting net; the water collecting tank cage cover water filtering supporting net is arranged at the bottom of the water filtering tank.
Further, the pore diameter of the water filtering support net is R4, and R3 and R4 satisfy the following conditions: r3 is more than or equal to R4.
A sewage filtering method of a horizontal sewage filtering system sequentially comprises a sewage filtering stage, a solid impurity discharging stage and a solid impurity squeezing and water filtering stage, and specifically comprises the following steps:
a) filtration stage of the waste water
Sewage is input into the sewage filter cylinder through a sewage input pipeline, a rotating shaft is driven to drive a sewage filter plate through a servo motor, a first screw conveyor and a roller shaft rotate synchronously and circumferentially, the sewage guided along the sewage filter cylinder is filtered by the sewage filter plate, the sewage of the sewage filter plate enters the hollow-face structure to attack the sewage, the sewage enters the sewage filter plate with a hollow structure from a water inlet hole, and then the sewage is discharged from a water outlet hole, because the aperture R1 of the water inlet hole is larger than the aperture R2 of the water outlet hole, solid impurities with the diameter between R2 and R1 in the sewage are filtered out in the sewage filter plate, and because the sewage filter plate is in a rotating state and has a centrifugal effect, the solid impurities in the sewage filter plate are conveyed into the first screw conveyor under the centrifugal effect of circumferential rotation, and because the aperture R3 of the water outlet hole is smaller than or equal to the aperture R2 of the water outlet hole, so that the solid impurities are collected in the first spiral conveyor, the sewage in the first spiral conveyor leaks out of the water leakage holes, and finally, the filtered sewage is output from the sewage output pipeline;
b) solid impurity discharge stage
Stopping inputting sewage into the sewage filter cylinder, driving the rotating shaft to drive the sewage filter plate, the first screw conveyor and the roller shaft to synchronously and circumferentially rotate through the servo motor, stopping when the sewage filter plate rotates to be in a horizontal posture and the discharge port faces downwards to the impurity discharge port, opening the discharge electric valve and the discharge electric valve, starting the first screw conveyor to discharge solid impurities in the first screw conveyor from the discharge port, and further enabling the solid impurities to fall down and be discharged out of the sewage filter cylinder from the impurity discharge port;
c) stage for squeezing and filtering solid impurities
Get into in the second screw conveyer from impurity discharge port exhaust solid impurity, start second screw conveyer and constantly carry solid impurity to the water strainer incasement, along with solid impurity's constantly increasing and second screw conveyer's continuous transport, form the extrusion to the solid impurity in the water strainer incasement to extrude the sewage that contains on solid impurity surface and inside and filter out to receiving the water tank in, artifical regular interval or look the solid impurity accumulation volume in the water strainer case and open the chamber door and take out solid impurity.
Has the advantages that: the horizontal sewage filtering system and the sewage filtering method thereof have the beneficial effects that:
1) in the process of guiding sewage along the sewage filter cartridge, the sewage is subjected to impact filtration in a rotating state of the rotary sewage filtering bent frame, the sewage is fully mixed and stirred in the filtering mode, and filtered solid impurities are immediately collected, so that the full, thorough and efficient filtration of the solid impurities contained in the sewage is realized;
2) the solid impurity squeezing and water filtering device carries out squeezing and water filtering treatment on the solid impurities, so that sewage (the surface and the part of the sewage immersed into the sewage) contained in the solid impurities is further and more thoroughly removed, the sewage is prevented from being carried out, and the subsequent treatment on the filtered solid impurities is facilitated;
3) the sewage treatment method disclosed by the invention is reasonable in layout, simple in operation process, easy to operate and suitable for large-scale popularization and application.
Drawings
FIG. 1 is a schematic view of the overall structure of the horizontal sewage filtration system of the present invention;
FIG. 2 is a schematic view of a half-section structure of the horizontal sewage filtration system of the present invention;
FIG. 3 is a schematic cross-sectional view of the horizontal sewage filtration system of the present invention;
FIG. 4 is a schematic cross-sectional structure diagram of the horizontal sewage filtering system in the solid impurity discharging stage and the solid impurity squeezing water filtering stage;
FIG. 5 is a schematic view of the overall structure of a rotary sewage filtering bent;
FIG. 6 is a schematic view of the overall structure of a rotary sewage filtering bent;
fig. 7 is a schematic cross-sectional structure view of a rotary sewage filtering bent.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and fig. 3, a horizontal sewage filtering system comprises a frame 1, a sewage filtering cylinder 2, a sewage input pipeline 3, a sewage output pipeline 4, a rotary sewage filtering bent frame 5 and a solid impurity squeezing and filtering device 6; the sewage filter cylinder 2 is supported by the frame 1 to be arranged in a horizontal posture, the sewage input pipeline 3 is butted with the front end of the sewage filter cylinder 2, the sewage output pipeline 4 is butted with the rear end of the sewage filter cylinder 2, and sewage input into the sewage filter cylinder 2 through the sewage input pipeline 3 is output from the sewage output pipeline 4 after being filtered; the rotary sewage filtering bent frame 5 is arranged in the sewage filtering cylinder 2, the rotary sewage filtering bent frame 5 is arranged along the axial direction of the sewage filtering cylinder 2 in the length direction, and the rotary sewage filtering bent frame 5 is arranged along the radial direction of the sewage filtering cylinder 2 in the width direction; rotatory sewage filters bent 5 relative sewage cartridge filter 2 circumference rotation and filters sewage to collect the solid impurity who filters in it. Carry out impact filter to sewage along 2 water conservancy diversion in-process of sewage cartridge filter at sewage, filter bent frame 5 rotation state through rotatory sewage under, this kind of filtration mode has carried out abundant mixing stirring to sewage, and the solid impurity who filters off is collected at once to the realization is filtered the sufficiency, the thoroughness, the high efficiency of the solid impurity that sewage contained.
The sewage filter cylinder 2 is provided with an impurity outlet 20, and the solid impurities collected by the rotary sewage filter bent frame 5 are discharged out of the sewage filter cylinder 2 through the impurity outlet 20; the solid impurity squeezing and water filtering device 6 is in butt joint with the impurity discharge port 20, and the solid impurity squeezing and water filtering device 6 performs squeezing and water filtering treatment on solid impurities, so that sewage contained in the solid impurities (surface and inside immersed in the solid impurities) is further and more thoroughly removed, the sewage is prevented from being carried out, and the subsequent treatment on the filtered solid impurities is facilitated.
As shown in fig. 2, the sewage filter cylinder 2 includes a cylinder body 21, a front cylinder cover 22, a rear cylinder cover 23, a front rubber seal ring 24 and a rear rubber seal ring 25; the cylinder 21 is horizontally arranged on the rack 1; the front cylinder cover 22 extrudes the front rubber sealing ring 24 to cover the front end cylinder opening of the cylinder body 21, the front cylinder cover 22 is provided with a sewage inlet 220 for communicating the cylinder body 21, and the sewage input pipeline 3 is in butt joint with the sewage inlet 220; the rear cylinder cover 23 extrudes the rear rubber sealing ring 25 to cover the rear end cylinder opening of the cylinder body 21, the rear cylinder cover 23 is provided with a sewage outlet 230 for communicating the cylinder body 21, and the sewage output pipeline 4 is in butt joint with the sewage outlet 230.
As shown in fig. 2, 5, 6 and 7, the rotary sewage filtering bent frame 5 includes a servo motor 50, a rotating shaft 51, a sewage filtering plate 52, a first screw conveyor 53 and a roller 54; the front barrel cover 22 is provided with a front-end hollow frame 22.1, the rear barrel cover 23 is provided with a rear-end hollow frame 23.1, and the rotating shaft 51 is rotatably arranged on the front-end hollow frame 22.1 and the rear-end hollow frame 23.1; the servo motor 50 is arranged on the front-end hollow frame 22.1 or the rear-end hollow frame 23.1 through a servo motor connecting part, and the servo motor 50 is in driving connection with the rotating shaft 51; the sewage filtering plate 52, the first spiral conveyer 53 and the roll shafts 54 are two, the sewage filtering plate 52, the first spiral conveyer 53 and the roll shafts 54 are sequentially connected to the side surface of the rotating shaft 51, and the rotating shaft 51, the two sewage filtering plates 52, the two first spiral conveyers 53 and the two roll shafts 54 are positioned on the same plane; the sewage filter plate 52 is a hollow structure and is communicated with the first outer pipe 530 of the first screw conveyor 53; the surface of the sewage filter plate 52, which faces the sewage, is the sewage inlet hollowed-out surface structure 521, the surface of the sewage filter plate 52, which is opposite to the sewage inlet hollowed-out surface structure 521, is the sewage outlet hollowed-out surface structure 522, and the pipe surface of the first outer pipe 530 of the first screw conveyor 53, which is located on one side of the sewage outlet hollowed-out surface structure 522, is the sewage leakage hollowed-out surface structure 5300; under servo motor 50 drive pivot 51 drove sewage filter 52, first screw conveyer 53 and the synchronous circumferential direction of roller 54 state, roller 54 roll extrusion sewage filter cylinder 2's inner tube wall to the realization supports whole rotatory sewage filtering bent 5's good nature, and sewage gets into fretwork face structure 521 from sewage and gets into in the sewage filter 52 and discharge from sewage discharge fretwork face structure 522, the solid impurity that filters out in the sewage filter 52 carries under the rotatory centrifugal action of circumference and realizes collecting in first screw conveyer 53, and the sewage in the first screw conveyer 53 spills face structure 5300 from sewage fretwork. The filtering technology of the invention is that the sewage filter plate 52 rotates to filter flowing sewage in the discharging process in an impacting manner, the filtering mode actually stirs the sewage, namely, solid impurities in the sewage can enter the sewage filter plate 52 to be filtered as much as possible, and the filtered impurities can be timely conveyed and collected, so that the phenomenon that the excessive solid impurities are accumulated in the sewage filter plate 52 to cause blockage is avoided, the sewage filter plate 52 is always in the optimal filtering state, and the filtering efficiency is improved.
More specifically, the hollow-out surface structure 521 for sewage inlet is formed by uniformly forming a plurality of water inlet holes 5210 on the surface of the sewage filter plate 52; the sewage discharge hollowed-out surface structure 522 is formed by uniformly forming a plurality of water outlet holes 5220 on the surface of the sewage filter plate 52; the sewage leaking hollow-out surface structure 5300 is formed by uniformly forming a plurality of water leaking holes 53000 on the first outer pipe 530 of the first screw conveyor 53; it should be noted that the aperture of the water inlet hole 5210 is R1, the aperture of the water outlet hole 5220 is R2, the aperture of the water outlet hole 53000 is R3, and the aperture of R1, R2, and R3 satisfy: r1 > R2 > R3.
As shown in fig. 4, the first outer tube 530 of the first screw conveyer 53 has discharge ports 531, two discharge ports 531 of the two first screw conveyers 53 are located at the same side, and each discharge port 531 is provided with a discharge electric valve 531 a; the number of the impurity outlets 20 of the sewage filter cylinder 2 is two, and each impurity outlet 20 is provided with an electric discharge valve 20 a; the rotary sewage filtering bent frame 5 rotates to be in a horizontal posture and under the state that the discharge port 531 faces downwards, the discharge port 531 is in one-to-one correspondence with the impurity discharge port 20 up and down.
The solid impurity squeezing and water filtering device 6 comprises a second screw conveyor 61, a water filtering tank 62 and a water collecting tank 63; the number of the second screw conveyors 61 is two, the two second screw conveyors 61 are arranged in an inverted-splayed shape, a feed inlet of the second screw conveyor 61 is butted with the discharge electric valve 20a, and the tail ends of second outer tubes 610 of the two second screw conveyors 61 are respectively communicated with the water filter tank 62; the top of the water filtering box 62 is provided with a box door 621, and the bottom is provided with a water filtering supporting net 622; the water receiving tank 63 is covered with a water filtering supporting net 622 and is arranged at the bottom of the water filtering tank 62.
It is noted that the pore diameter of the drainage support net 622 is R4, and R3 and R4 satisfy: r3 is more than or equal to R4, so that solid impurities are prevented from falling into the water receiving tank 63.
A sewage filtering method of a horizontal sewage filtering system sequentially comprises a sewage filtering stage, a solid impurity discharging stage and a solid impurity squeezing and water filtering stage, and specifically comprises the following steps:
a) filtration stage of the waste water
Sewage is input into the sewage filter cylinder 2 through the sewage input pipeline 3, the rotating shaft 51 is driven by the servo motor 50 to drive the sewage filter plate 52, the first spiral conveyor 53 and the roller shaft 54 to synchronously rotate in the circumferential direction, so that the sewage guided along the sewage filter cylinder 2 is filtered by the sewage filter plate 52, the sewage of the sewage filter plate 52 enters the hollow surface structure 521 to attack the sewage, the sewage enters the sewage filter plate 52 with a hollow structure from the water inlet 5210 and is then discharged from the water outlet 5220, as the aperture R1 of the water inlet 5210 is larger than the aperture R2 of the water outlet 5220, solid impurities with the diameter between R2 and R1 in the sewage are filtered out in the sewage filter plate 52, and as the sewage filter plate 52 is in a rotating state and has a centrifugal effect, the solid impurities in the sewage filter plate 52 are conveyed into the first spiral conveyor 53 under the circumferential rotating centrifugal effect, as the aperture R3 of the water outlet 53000 is smaller than or equal to the aperture R2 of the water outlet 5220, so that the solid impurities are collected in the first screw conveyor 53, and the sewage in the first screw conveyor 53 leaks out of the water leakage holes 53000, and finally, the filtered sewage is output from the sewage output pipe 4;
b) solid impurity discharge stage
Stopping inputting sewage into the sewage filter cylinder 2, then driving the rotating shaft 51 to drive the sewage filter plate 52, the first screw conveyor 53 and the roller shaft 54 to synchronously and circumferentially rotate through the servo motor 50, stopping when the sewage filter plate 52 rotates to be in a horizontal posture and the discharge port 531 faces downwards to the impurity discharge port 20, opening the discharge electric valve 531a and the discharge electric valve 20a, starting the first screw conveyor 53 to discharge solid impurities in the sewage filter plate from the discharge port 531, and further enabling the solid impurities to fall and be discharged out of the sewage filter cylinder 2 from the impurity discharge port 20;
c) stage for squeezing and filtering solid impurities
Solid impurities discharged from the impurity discharge port 20 enter the second screw conveyer 61, the second screw conveyer 61 is started to continuously convey the solid impurities to the water filtering tank 62, the solid impurities in the water filtering tank 62 are extruded and filtered out to the water collecting tank 63 along with the continuous increase of the solid impurities and the continuous conveying of the second screw conveyer 61, and the tank door 621 is opened to take out the solid impurities manually at regular intervals or according to the accumulation amount of the solid impurities in the water filtering tank 62.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a horizontal sewage filtration system which characterized in that: comprises a frame (1), a sewage filter cylinder (2), a sewage input pipeline (3), a sewage output pipeline (4), a rotary sewage filtering bent frame (5) and a solid impurity squeezing and water filtering device (6);
the sewage filter cylinder (2) is supported by the frame (1) to be arranged in a horizontal posture, the sewage input pipeline (3) is butted at the front end of the sewage filter cylinder (2), the sewage output pipeline (4) is butted at the rear end of the sewage filter cylinder (2), and sewage input into the sewage filter cylinder (2) through the sewage input pipeline (3) is output from the sewage output pipeline (4) after being filtered;
the rotary sewage filtering bent frame (5) is arranged in the sewage filtering cylinder (2), the rotary sewage filtering bent frame (5) is arranged along the axial direction of the sewage filtering cylinder (2) in the length direction, and the rotary sewage filtering bent frame (5) is arranged along the radial direction of the sewage filtering cylinder (2) in the width direction; the rotary sewage filtering bent frame (5) rotates circumferentially relative to the sewage filtering cylinder (2) to filter sewage and collect filtered solid impurities in the rotary sewage filtering bent frame;
the sewage filter cylinder (2) is provided with an impurity outlet (20), and solid impurities collected by the rotary sewage filtering bent frame (5) are discharged out of the sewage filter cylinder (2) through the impurity outlet (20); the solid impurity squeezing and water filtering device (6) is in butt joint with the impurity discharge port (20), and the solid impurity squeezing and water filtering device (6) performs squeezing and water filtering treatment on solid impurities;
the sewage filter cylinder (2) comprises a cylinder body (21), a front cylinder cover (22), a rear cylinder cover (23), a front rubber sealing ring (24) and a rear rubber sealing ring (25); the cylinder (21) is horizontally arranged on the rack (1); the front cylinder cover (22) extrudes the front rubber sealing ring (24) to cover the front end cylinder opening of the cylinder body (21), the front cylinder cover (22) is provided with a sewage inlet (220) communicated with the cylinder body (21), and the sewage input pipeline (3) is butted with the sewage inlet (220); the rear cylinder cover (23) extrudes the rear rubber sealing ring (25) to cover the rear cylinder opening of the cylinder body (21), the rear cylinder cover (23) is provided with a sewage outlet (230) communicated with the cylinder body (21), and the sewage output pipeline (4) is in butt joint with the sewage outlet (230);
the rotary sewage filtering bent frame (5) comprises a servo motor (50), a rotating shaft (51), a sewage filtering plate (52), a first spiral conveyor (53) and a roll shaft (54); a front hollow frame (22.1) is arranged on the front barrel cover (22), a rear hollow frame (23.1) is arranged on the rear barrel cover (23), and the rotating shaft (51) is rotatably arranged on the front hollow frame (22.1) and the rear hollow frame (23.1); the servo motor (50) is mounted on the front-end hollow frame (22.1) or the rear-end hollow frame (23.1) through a servo motor connecting part, and the servo motor (50) is in driving connection with the rotating shaft (51); the sewage filtering plates (52), the first spiral conveyors (53) and the roll shafts (54) are two, the sewage filtering plates (52), the first spiral conveyors (53) and the roll shafts (54) are sequentially connected to the side surfaces of the rotating shaft (51), and the rotating shaft (51), the two sewage filtering plates (52), the two first spiral conveyors (53) and the two roll shafts (54) are positioned on the same plane; the sewage filter plate (52) is of a hollow structure and is communicated with a first outer pipe (530) of the first spiral conveyor (53); the sewage filtering plate (52) is characterized in that the surface of the sewage filtering plate (52) which faces the sewage is a sewage inlet hollowed-out surface structure (521), the surface of the sewage filtering plate (52) opposite to the sewage inlet hollowed-out surface structure (521) is a sewage outlet hollowed-out surface structure (522), and the pipe surface of the first outer pipe (530) of the first spiral conveyor (53) positioned on one side of the sewage outlet hollowed-out surface structure (522) is a sewage leakage hollowed-out surface structure (5300);
under servo motor (50) drive pivot (51) drove sewage filter (52), first screw conveyer (53) and roller (54) synchronous circumferential direction rotation state, roller (54) roll extrusion sewage cartridge filter's (2) inner tube wall, sewage from sewage entering fretwork surface structure (521) get into in sewage filter (52) and discharge from sewage discharge fretwork surface structure (522), the solid impurity that filters out in sewage filter (52) carries under the rotatory centrifugal action of circumference to realize collecting in first screw conveyer (53), and the sewage that just leaks in first screw conveyer (53) leaks out from sewage fretwork surface structure (5300).
2. The horizontal sewage filtration system of claim 1, wherein: the sewage inlet hollow-out surface structure (521) is formed by uniformly arranging a plurality of water inlet holes (5210) on the surface of a sewage filter plate (52); the sewage discharge hollowed-out surface structure (522) is formed by uniformly arranging a plurality of water outlet holes (5220) on the surface of the sewage filter plate (52); the sewage leaking hollowed-out surface structure (5300) is formed by uniformly forming a plurality of water leaking holes (53000) in the first outer pipe (530) of the first spiral conveyor (53); the aperture of the water inlet hole (5210) is R1, the aperture of the water outlet hole (5220) is R2, the aperture of the water leakage hole (53000) is R3, and the R1, R2 and R3 satisfy the following conditions: r1 > R2 > R3.
3. The horizontal sewage filtration system of claim 2, wherein: the first outer pipe (530) of the first spiral conveyor (53) is provided with discharge ports (531), the two discharge ports (531) of the two first spiral conveyors (53) are positioned on the same side, and each discharge port (531) is provided with a discharge electric valve (531 a); the number of the impurity discharge ports (20) of the sewage filter cylinder (2) is two, and each impurity discharge port (20) is provided with an electric discharge valve (20 a); the rotary sewage filtering bent frame (5) rotates to be in a horizontal posture and under the state that the discharge port (531) faces downwards, the discharge port (531) is in one-to-one correspondence with the impurity discharge port (20) up and down.
4. The horizontal sewage filtration system of claim 3, wherein: the solid impurity squeezing and water filtering device (6) comprises a second screw conveyor (61), a water filtering tank (62) and a water collecting tank (63); the number of the second spiral conveyors (61) is two, the two second spiral conveyors (61) are arranged in an inverted splayed shape, a feed inlet of the second spiral conveyor (61) is butted with the discharging electric valve (20a), and the tail ends of second outer tubes (610) of the two second spiral conveyors (61) are respectively communicated with the water filtering box (62); the top of the water filtering box (62) is provided with a box door (621), and the bottom of the water filtering box is provided with a water filtering supporting net (622); the water collecting tank (63) is covered with a water filtering supporting net (622) and is arranged at the bottom of the water filtering tank (62).
5. The horizontal sewage filtration system of claim 4, wherein: the pore diameter of the water filtering support net (622) is R4, and R3 and R4 satisfy the following conditions: r3 is more than or equal to R4.
6. The sewage filtering method of the horizontal sewage filtering system according to claim 5, wherein: include sewage filtration stage, solid impurity discharge stage and solid impurity extrusion drainage stage in proper order, specifically as follows:
a) filtration stage of the waste water
Sewage is input into the sewage filter cylinder (2) through the sewage input pipeline (3), the rotating shaft (51) is driven by the servo motor (50) to drive the sewage filter plate (52), the first screw conveyor (53) and the roller shaft (54) to rotate in the circumferential direction synchronously, the sewage guided along the sewage filter cylinder (2) is filtered by the sewage filter plate (52), the sewage of the sewage filter plate (52) enters the hollow surface structure (521) to attack the sewage, the sewage enters the sewage filter plate (52) with the hollow structure from the water inlet hole (5210), and then the sewage is discharged from the water outlet hole (5220), because the aperture R1 of the water inlet hole (5210) is larger than the aperture R2 of the water outlet hole (5220), solid impurities with the diameter between R2 and R1 in the sewage are filtered out in the sewage filter plate (52), and because the sewage filter plate (52) is in a rotating state and has a centrifugal effect, therefore, solid impurities in the sewage filter plate (52) are conveyed into the first spiral conveyor (53) under the action of circumferential rotation and centrifugation, the aperture R3 of the water leakage hole (53000) is smaller than or equal to the aperture R2 of the water leakage hole (5220), so that the solid impurities are collected in the first spiral conveyor (53), the sewage in the first spiral conveyor (53) leaks out from the water leakage hole (53000), and finally, the filtered sewage is output from the sewage output pipeline (4);
b) solid impurity discharge stage
Stopping inputting sewage into the sewage filter cylinder (2), then driving a rotating shaft (51) to drive a sewage filter plate (52), a first screw conveyor (53) and a roller shaft (54) to synchronously and circumferentially rotate through a servo motor (50), stopping when the sewage filter plate (52) rotates to be in a horizontal posture and a discharge port (531) faces downwards to an impurity discharge port (20), opening a discharge electric valve (531a) and a discharge electric valve (20a), starting the first screw conveyor (53) to discharge solid impurities in the sewage filter plate from the discharge port (531), and further enabling the solid impurities to fall down and be discharged out of the sewage filter cylinder (2) from the impurity discharge port (20);
c) stage for squeezing and filtering solid impurities
Solid impurities discharged from the impurity discharge port (20) enter the second spiral conveyor (61), the second spiral conveyor (61) is started to continuously convey the solid impurities to the water filtering box (62), extrusion on the solid impurities in the water filtering box (62) is formed along with the continuous increase of the solid impurities and the continuous conveying of the second spiral conveyor (61), so that the surface of the solid impurities and sewage contained in the surface of the solid impurities are extruded and filtered into the water collecting box (63), and the box door (621) is opened manually at regular intervals or according to the accumulation amount of the solid impurities in the water filtering box (62) to take out the solid impurities.
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