CN112707455A - Sewage coarse filtering device - Google Patents

Sewage coarse filtering device Download PDF

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Publication number
CN112707455A
CN112707455A CN202110094161.1A CN202110094161A CN112707455A CN 112707455 A CN112707455 A CN 112707455A CN 202110094161 A CN202110094161 A CN 202110094161A CN 112707455 A CN112707455 A CN 112707455A
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CN
China
Prior art keywords
water tank
pipe
sewage
inner shaft
wall
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Withdrawn
Application number
CN202110094161.1A
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Chinese (zh)
Inventor
冯加明
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to CN202110094161.1A priority Critical patent/CN112707455A/en
Publication of CN112707455A publication Critical patent/CN112707455A/en
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
    • B01D29/6415—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6438—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles
    • B01D29/6446—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/004—Seals, connections
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/005—Valves
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention discloses a sewage coarse filtering device, which comprises a water tank, wherein a plurality of stand columns are arranged at the bottom of the water tank, and a water outlet pipe is arranged at the bottom of the water tank; a through hole which vertically penetrates is formed in the middle of the bottom of the water tank, a filter pipe is arranged at the position, opposite to the through hole, of the bottom of the water tank, a discharge pipe is arranged at the position, opposite to the through hole, of the outer bottom of the water tank, and bolts are assembled among the filter pipe, the water tank and the discharge pipe; the inner diameter of the discharge pipe is larger than that of the filter pipe, a sewage discharge pipe is arranged at the position, close to the bottom, of the outer wall of the discharge pipe, a rotatable inner shaft is arranged at the axis of the filter pipe, and a base is assembled at the lower end of the inner shaft; this device can realize sewage particulate matter's simple filtration, can also realize self-cleaning simultaneously.

Description

Sewage coarse filtering device
Technical Field
The invention relates to a sewage coarse filtering device.
Background
The sewage treatment is generally classified into production sewage treatment and domestic sewage treatment according to the classification of sewage sources. The production sewage comprises industrial sewage, agricultural sewage, medical sewage and the like, and the domestic sewage is sewage generated in daily life and is a complex mixture of various forms of inorganic matters and organic matters, including floating and suspended solid particles, colloidal and gelatinous diffusions and pure solution.
According to the nature of water pollution, the water pollution is classified into two types, one is natural pollution, the other is artificial pollution, and the current water body is greatly damaged by artificial pollution. Water pollution can be mainly classified into chemical pollution, physical pollution and biological pollution according to different pollution impurities. The pollutants mainly comprise industrial wastewater discharged without treatment, domestic sewage discharged without treatment, farmland sewage using a large amount of chemical fertilizers, pesticides and herbicides, industrial wastes and domestic garbage stacked beside rivers, water and soil loss and sixty mine sewage.
The methods for treating sewage are various, and can be generally classified into physical methods, chemical methods, biological methods and the like.
Wherein the physics method filters, mainly utilizes the filter screen to carry out filterable operation mode to sewage, among the conventional art, adopts the action of gravity infiltration filter screen, passes the sewage of filter screen and accomplishes the coarse filtration, and this kind of operation form, when the surface of filter screen has accumulated more particulate matter, the unable effectual filter screen that passes through of sewage of new entering for subsequent sewage infiltration's efficiency is gradual reduction, and clear mode, then need artifical clearance, comparatively wastes time and energy.
Based on the problems, the sewage coarse filtering device capable of realizing simple filtering of sewage particles and automatic cleaning is designed.
Disclosure of Invention
The invention aims to provide a sewage coarse filtering device which can realize simple filtering of sewage particles and can realize automatic cleaning.
In order to solve the problems, the invention adopts the following technical scheme:
a sewage coarse filtering device comprises a water tank, wherein a plurality of upright posts are arranged at the bottom of the water tank, and a water outlet pipe is arranged at the bottom of the water tank; a through hole which vertically penetrates is formed in the middle of the bottom of the water tank, a filter pipe is arranged at the position, opposite to the through hole, of the bottom of the water tank, a discharge pipe is arranged at the position, opposite to the through hole, of the outer bottom of the water tank, and bolts are assembled among the filter pipe, the water tank and the discharge pipe; the inner diameter of the discharge pipe is larger than that of the filter pipe, a sewage discharge pipe is arranged at a position, close to the bottom, of the outer wall of the discharge pipe, a rotatable inner shaft is arranged at the axis of the filter pipe, a base is assembled at the lower end of the inner shaft, a sealing ring is clamped at the outer wall of the base and is in contact with the inner wall of the filter pipe to form sealing, a bearing and a shaft seal are matched between the inner shaft and the base, and the shaft seal is sealed at the upper part of the bearing; a convex ring part is arranged outside the inner shaft, an inner hole is arranged at the axis of the inner shaft, and a water outlet groove connected with the inner hole is arranged at the outer wall of the convex ring part; a stepped groove is formed in the outer wall surface of the filter pipe, and a metal filter screen is arranged in the stepped groove; a driven pulley fitted outside the inner shaft; vertical guide rods are welded on the front end face and the rear end face of the water tank, a platform capable of moving up and down is assembled among the guide rods, a motor is installed on the outer side of the platform, a driving belt wheel is installed at the output end of the motor, a transmission belt is matched between the driving belt wheel and the driven belt wheel, the inner shaft penetrates through the platform, and a second bearing is matched between the inner shaft and the platform; a cover plate is connected to the upper end of the filter pipe in a flange mode, the inner shaft penetrates through the cover plate, a first sealing ring is arranged at the axis of the cover plate, and the first sealing ring is in contact with the inner shaft and then forms sealing with the inner shaft; and a servo motor is arranged on the outer side of the water tank, and a ball screw transmission mechanism is matched between the servo motor and the platform.
Preferably, a plurality of T-shaped grooves are annularly arranged on the outer wall of the convex ring part, a rubber seat is clamped in each T-shaped groove, and bristles are uniformly distributed at one end, far away from the T-shaped grooves, of each rubber seat; the bristles contact the metal screen; when the inner shaft rotates under the action of the motor, the bristles rotate along with the inner shaft, the bristles contact with the metal filter screen and clean the metal filter screen, so that the metal filter screen keeps passability at the position where the bristles touch, and sewage sprayed from the water outlet groove can be thrown out of the metal filter screen all the time. Similarly, when the platform is lowered, the rotating brush hair is matched with the washing of clean water, so that the metal filter screen can be better cleaned.
Preferably, the lower end of the cover plate is inserted into the filter pipe, a second sealing ring is arranged on the outer wall of the cover plate, and the second sealing ring is in contact with the inner wall of the filter pipe and then forms a seal with the inner wall; in the structure, the arrangement of the second sealing ring can better improve the sealing property.
Preferably, the upper end of the base is provided with a conical flow distribution surface; the shunting surface facilitates the downward discharge of the washed particles into the discharge pipe.
Preferably, when the inner shaft moves downwards to the limit position, the bottom of the base is more than 5cm away from the inner bottom surface of the discharge pipe.
Preferably, the transmission belt is a flat belt or a V-belt.
Preferably, a water tank is arranged at the upper end of the inner shaft, a sewage inlet pipe is arranged at the upper end of the water tank, the upper end of the inner shaft is inserted into the water tank, and the inner shaft and the water tank are arranged between each other; a first bearing and a first shaft seal are matched between the inner shaft and the water tank, and the first shaft seal is sealed at the upper part of the first bearing; a guide sleeve is arranged on the outer side of the water tank, and the guide rod penetrates through the guide sleeve; in the structure, sewage can enter the inner shaft smoothly through the water tank and the seal of the shaft seal.
Preferably, the upper end of the water tank is also provided with a clean water pipe, the sewage inlet pipe and the clean water pipe are respectively provided with a ball valve, and the sewage inlet pipe and the upper end of the clean water pipe are respectively provided with a rubber folding pipe. Above-mentioned structure advances the pipe through sewage and can get into sewage, can get into the clear water through the clear water pipe, can erode the metal filter screen through the clear water, and above-mentioned structure has realized the switching of sewage and clear water, and is more convenient to the clean operation of metal filter screen, under the conditional basis, can adopt the solenoid valve to replace the ball valve, and PLC realizes logic control, lets sewage treatment simpler.
The sewage filtering operation mode of the device is as follows:
firstly, a servo motor drives a ball screw transmission mechanism to enable a platform to ascend, an ascending base enters a filter pipe and is positioned at the bottom of the filter pipe, and at the moment, a metal filter screen is positioned at the upper part of the base; sewage is input into the inner shaft in a pumping mode, the inner shaft is driven to rotate by the motor, the inner shaft rotates, the upper part of the metal filter screen is washed by the ejected sewage in a mode that the sewage is ejected from the water outlet groove, and then the sewage is deposited at the lower part of the filter pipe and permeates the metal filter screen outwards; under the action of centrifugal force, part of sewage is directly thrown out of the metal filter screen, and particles adhered to the upper part of the metal filter screen are washed away by subsequent sewage, so that the upper part of the metal filter screen is always kept in a relatively clean state; when the permeability of the metal filter screen is insufficient, the inner surface of the metal filter screen is dirty; at the moment, clear water is pumped to the inner shaft, the ball screw transmission mechanism is driven to operate through the servo motor to drive the platform to sink, after the platform sinks, the base is separated from the filter pipe and enters the discharge pipe, at the moment, the filter pipe and the discharge pipe are conducted, the inner wall of the metal filter screen is cleaned through the clear water along with the rotary washing of water flow, the washed dirt is discharged into the discharge pipe downwards, the platform is lifted until the metal filter screen is cleaned, the base returns to the original position, and then the water is filtered again.
The invention has the beneficial effects that:
1) the device enters sewage through the inner shaft, the sewage enters the filter pipe through the inner shaft and then permeates the metal filter screen to be filtered to remove particles, the filtering mode is simple and convenient, the product structural design is simple, and the manufacturing cost is low;
2) the metal filter screen is always washed by the rotating sewage water flow, so that the metal filter screen at the upper part can keep higher passing rate compared with the metal filter screen at the lower part, when sewage is accumulated in the filter pipe, the surface filtering efficiency is insufficient, the lower end of the filter pipe can be opened by downwards moving the platform, the metal filter screen is cleaned by pumping clean water, the platform is reset after cleaning is completed, filtering can be restarted, the whole operation mode is very simple, manual cleaning is not needed, and the cleaning efficiency is higher;
3) the device has more efficient processing capacity and is suitable for popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is a top view of the sink;
FIG. 5 is an assembled view of the platform;
FIG. 6 is a top view of the bead portion;
fig. 7 is a top view of the water tank.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 7.
Example 1
A sewage coarse filtering device comprises a water tank 1, wherein a plurality of upright posts 2 are arranged at the bottom of the water tank 1, and a water outlet pipe 101 is arranged at the bottom of the water tank 1; a through hole which vertically penetrates is formed in the middle of the bottom of the water tank 1, a filter pipe 3 is arranged at the position, opposite to the through hole, of the bottom of the water tank 1, a discharge pipe 4 is arranged at the position, opposite to the through hole, of the outer bottom of the water tank 1, and a bolt 5 is arranged among the filter pipe 3, the water tank 1 and the discharge pipe 4; the inner diameter of the discharge pipe 4 is greater than that of the filter pipe 3, a sewage discharge pipe 401 is arranged at a position, close to the bottom, of the outer wall of the discharge pipe 4, a rotatable inner shaft 6 is arranged at the axis of the filter pipe 3, a base 601 is assembled at the lower end of the inner shaft 6, a sealing ring 602 is clamped at the outer wall of the base 601, the sealing ring 602 is in contact with the inner wall of the filter pipe 3 and then forms sealing with the inner wall, a bearing 611 and a shaft seal 612 are matched between the inner shaft 6 and the base 601, and the shaft seal 612 is sealed at the upper part of the bearing 611; a convex ring part 603 is arranged outside the inner shaft 6, an inner hole 604 is arranged at the axis of the inner shaft 6, and a water outlet groove 605 connected with the inner hole 604 is arranged at the outer wall of the convex ring part 603; a stepped groove 301 is formed in the outer wall surface of the filtering pipe 3, and a metal filter screen 302 is arranged in the stepped groove 301; a driven pulley 615 is fitted outside the inner shaft 6; vertical guide rods 102 are welded on the front end face and the rear end face of the water tank 1, a platform 103 capable of moving up and down is assembled among the guide rods 102, a motor 104 is installed on the outer side of the platform 103, a driving pulley 105 is installed at the output end of the motor 104, a transmission belt 106 is matched between the driving pulley 105 and a driven pulley 615, the inner shaft 6 penetrates through the platform 103, and a second bearing 107 is matched between the inner shaft 6 and the platform 103; a cover plate 331 is flanged to the upper end of the filter tube 3, the inner shaft 6 penetrates through the cover plate 331, a first sealing ring 332 is arranged at the axis of the cover plate 331, and the first sealing ring 332 is in contact with the inner shaft 6 and then forms a seal therewith; a servo motor 8 is installed on the outer side of the water tank 1, and a ball screw transmission mechanism 9 is matched between the servo motor 8 and the platform 103.
Example 2
A plurality of T-shaped grooves 606 are annularly arranged on the outer wall of the convex ring part 603, a rubber seat 607 is clamped in the T-shaped grooves 606, and bristles 608 are uniformly distributed at one end of the rubber seat 607 far away from the T-shaped grooves 606; the bristles 608 contact the metal screen 302; when the inner shaft 6 rotates under the action of the motor, the bristles 608 rotate along with the inner shaft, the bristles 608 contact the metal screen 302 and clean the metal screen 302, so that the metal screen 302 is kept passing at the position where the bristles 608 contact, and sewage sprayed from the water outlet groove 605 can be thrown out of the metal screen 302 all the time. Also, when the platform 103 is lowered, the rotating bristles 608 cooperate with the water wash to better clean the metal screen 302.
Example 3
The lower end of the cover plate 331 is inserted into the filter pipe 3, a second sealing ring 333 is arranged on the outer wall of the cover plate 331, and the second sealing ring 333 is in contact with the inner wall of the filter pipe 3 to form a seal therewith; in the above configuration, the second seal 333 is provided to improve the sealing performance.
Example 4
The upper end of the base 601 is provided with a conical flow distribution surface 666; the diverter surface 666 facilitates the downward discharge of the washed-off particles into the discharge tube 4.
Example 5
The belt 106 is a flat belt or a V-belt.
Example 6
A water tank 7 is arranged at the upper end of the inner shaft 6, a sewage inlet pipe 701 is arranged at the upper end of the water tank 7, the upper end of the inner shaft 6 is inserted into the water tank 7, and a space is reserved between the inner shaft 6 and the water tank 7; a first bearing 613 and a first shaft seal 614 are fitted between the inner shaft 6 and the water tank 7, and the first shaft seal 614 is sealed at the upper part of the first bearing 613; a guide sleeve 711 is arranged on the outer side of the water tank 7, and the guide rod 102 penetrates through the guide sleeve 711; in the structure, sewage can enter through the water tank 7, and the sewage entering the water tank 7 can smoothly enter the inner shaft 6 through the sealing of the shaft seal.
Example 7
The upper end of the water tank 7 is also provided with a clear water pipe 771, the sewage inlet pipe 701 and the clear water pipe 771 are both provided with ball valves 772, and the upper ends of the sewage inlet pipe 701 and the clear water pipe 771 are both provided with rubber folding pipes 773. Above-mentioned structure advances pipe 701 through sewage and can get into sewage, can get into the clear water through clear water pipe 771, can erode metal filter screen 302 through the clear water, and above-mentioned structure has realized the switching of sewage and clear water, and is more convenient to metal filter screen 302's clean operation, under the basis of conditional, can adopt the solenoid valve to replace ball valve 772, and the logical control is realized to the PLC of deuterogamying, lets sewage treatment simpler.
The sewage filtering operation mode of the device is as follows:
firstly, a ball screw transmission mechanism is driven by a servo motor, so that the platform 103 is lifted, the lifting base 601 enters the filter pipe 3 and is positioned at the bottom of the filter pipe 3, and at the moment, the metal filter screen 302 is positioned at the upper part of the base 601; sewage is input into the inner shaft 6 in a pumping mode, the inner shaft 6 is driven to rotate by a motor, the inner shaft 6 rotates, the upper part of the metal filter screen 302 is washed by the ejected sewage in a mode that the sewage is ejected from the water outlet groove 605, and then the sewage is deposited at the lower part of the filter pipe 3 and permeates the metal filter screen 302 outwards; under the action of centrifugal force, part of the sewage is directly thrown out of the metal filter screen 302, and particles adhered to the upper part of the metal filter screen 302 are washed away by subsequent sewage, so that the upper part of the metal filter screen 302 is always kept in a relatively clean state; when the permeability of the metal screen 302 is insufficient, i.e., the inner surface of the metal screen 302 is soiled; at the moment, clear water is pumped into the inner shaft 6, the ball screw transmission mechanism is driven to operate through the servo motor, the platform 103 is driven to sink, after the platform 103 sinks, the base 601 is separated from the filter pipe 3 and enters the discharge pipe 4, the filter pipe 3 and the discharge pipe 4 are conducted at the moment, the inner wall of the metal filter screen 302 is cleaned by the clear water along with the rotary scouring of water flow, the scoured dirt is discharged downwards into the discharge pipe 4 until the metal filter screen 302 is cleaned, the platform 103 is lifted again to enable the base 601 to return to the original position, and then the water is filtered again.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. A sewage coarse filtering device comprises a water tank (1), wherein a plurality of upright posts (2) are arranged at the bottom of the water tank (1), and a water outlet pipe (101) is arranged at the bottom of the water tank (1); the method is characterized in that: a through hole which penetrates through the water tank (1) vertically is formed in the middle of the bottom of the water tank (1), a filter pipe (3) is arranged at the position, opposite to the through hole, of the bottom of the water tank (1), a discharge pipe (4) is arranged at the position, opposite to the through hole, of the outer bottom of the water tank (1), and a bolt (5) is arranged among the filter pipe (3), the water tank (1) and the discharge pipe (4); the inner diameter of the discharge pipe (4) is larger than that of the filter pipe (3), a sewage discharge pipe (401) is arranged at the position, close to the bottom, of the outer wall of the discharge pipe (4), a rotatable inner shaft (6) is arranged at the axis of the filter pipe (3), a base (601) is assembled at the lower end of the inner shaft (6), a sealing ring (602) is clamped at the outer wall of the base (601), the sealing ring (602) is in contact with the inner wall of the filter pipe (3) and then forms sealing with the inner wall, a bearing (611) and a shaft seal (612) are matched between the inner shaft (6) and the base (601), and the shaft seal (612) is sealed at the upper part of the bearing (611); a convex ring part (603) is arranged outside the inner shaft (6), an inner hole (604) is arranged at the axis of the inner shaft (6), and a water outlet groove (605) connected with the inner hole (604) is arranged at the outer wall of the convex ring part (603); a stepped groove (301) is formed in the outer wall surface of the filtering pipe (3), and a metal filter screen (302) is arranged in the stepped groove (301); a driven pulley (615) is fitted outside the inner shaft (6); vertical guide rods (102) are welded on the front end face and the rear end face of the water tank (1), a platform (103) capable of moving up and down is assembled among the guide rods (102), a motor (104) is installed on the outer side of the platform (103), a driving pulley (105) is installed at the output end of the motor (104), a transmission belt (106) is matched between the driving pulley (105) and the driven pulley (615), the inner shaft (6) penetrates through the platform (103), and a second bearing (107) is matched between the inner shaft (66) and the platform (103); a cover plate (331) is connected to the upper end of the filter pipe (3) in a flange mode, the inner shaft (6) penetrates through the cover plate (331), a first sealing ring (332) is arranged at the axis of the cover plate (331), and the first sealing ring (332) is in contact with the inner shaft (6) and then forms a seal with the inner shaft; a servo motor (8) is installed on the outer side of the water tank (1), and a ball screw transmission mechanism (9) is matched between the servo motor (8) and the platform (103).
2. The sewage roughing filter apparatus of claim 1, characterized in that: a plurality of T-shaped grooves (606) are annularly arranged on the outer wall of the convex ring part (603), rubber seats (607) are clamped in the T-shaped grooves (606), and bristles (608) are uniformly distributed at the ends, far away from the T-shaped grooves (606), of the rubber seats (607); the bristles (608) contact the metal screen (302).
3. The sewage roughing filter apparatus of claim 1, characterized in that: the lower end of the cover plate (331) is inserted into the filter pipe (3), a second sealing ring (333) is arranged on the outer wall of the cover plate (331), and the second sealing ring (333) is in contact with the inner wall of the filter pipe (3) and then forms sealing with the filter pipe.
4. The sewage roughing filter apparatus of claim 1, characterized in that: the upper end of the base (601) is provided with a conical flow distribution surface (666).
5. The sewage roughing filter apparatus of claim 1, characterized in that: when the inner shaft (6) moves downwards to the limit position, the bottom of the base (601) is more than 5cm away from the inner bottom surface of the discharge pipe (4).
6. The sewage roughing filter apparatus of claim 1, characterized in that: the transmission belt (106) is a flat belt or a V-belt.
7. The sewage roughing filter apparatus of claim 1, characterized in that: a water tank (7) is arranged at the upper end of the inner shaft (6), a sewage inlet pipe (701) is arranged at the upper end of the water tank (7), the upper end of the inner shaft (6) is inserted into the water tank (7), and a space is reserved between the inner shaft (6) and the water tank (7); a first bearing (613) and a first shaft seal (614) are matched between the inner shaft (6) and the water tank (7), and the first shaft seal (614) is sealed at the upper part of the first bearing (613); a guide sleeve (711) is arranged on the outer side of the water tank (7), and the guide rod (102) penetrates through the guide sleeve (711).
8. The sewage roughing filter apparatus of claim 7, characterized in that: the upper end of the water tank (7) is also provided with a clear water pipe (771), the sewage inlet pipe (701) and the clear water pipe (771) are respectively provided with a ball valve (772), and the upper ends of the sewage inlet pipe (701) and the clear water pipe (771) are respectively provided with a rubber folding pipe (773).
CN202110094161.1A 2021-01-25 2021-01-25 Sewage coarse filtering device Withdrawn CN112707455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110094161.1A CN112707455A (en) 2021-01-25 2021-01-25 Sewage coarse filtering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110094161.1A CN112707455A (en) 2021-01-25 2021-01-25 Sewage coarse filtering device

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Publication Number Publication Date
CN112707455A true CN112707455A (en) 2021-04-27

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CN202110094161.1A Withdrawn CN112707455A (en) 2021-01-25 2021-01-25 Sewage coarse filtering device

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Country Link
CN (1) CN112707455A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114917679A (en) * 2022-06-06 2022-08-19 福建大丰收灌溉科技有限公司 Filter for agricultural irrigation pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114917679A (en) * 2022-06-06 2022-08-19 福建大丰收灌溉科技有限公司 Filter for agricultural irrigation pipeline
CN114917679B (en) * 2022-06-06 2023-05-26 福建大丰收灌溉科技有限公司 Filter for agricultural irrigation pipeline

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Application publication date: 20210427