CN119240827A

CN119240827A - An ultrafiltration membrane guided filtration device for urban sewage treatment

Info

Publication number: CN119240827A
Application number: CN202411581240.5A
Authority: CN
Inventors: 司秀荣; 王凯轩; 岳雯; 陈锋; 李民
Original assignee: North China Institute of Aerospace Engineering
Current assignee: North China Institute of Aerospace Engineering
Priority date: 2024-11-07
Filing date: 2024-11-07
Publication date: 2025-01-03

Abstract

The invention discloses an ultrafiltration membrane guided filtration device for urban sewage treatment, which belongs to the field of sewage treatment. An ultrafiltration membrane guided filtration device for urban sewage treatment includes a plurality of filter tanks, and also includes: a sealing cover, which is threadedly connected to the upper end of the filter tank; a bottom plate and a top plate are arranged in the filter tank, and a plurality of fixed barrels are fixedly connected between the bottom plate and the top plate; a filter membrane, which is arranged on the outside of the fixed barrel; a first cavity is arranged between the filter tank and the filter membrane, and a second cavity is arranged between the sealing cover and the top plate; a first water supply pipe connected to the first cavity; the invention effectively prevents excessive impurities from being attached to the filter membrane to affect its filtering effect and its later cleaning, and at the same time, the filter membrane can be cleaned without disassembly, which effectively improves the cleaning efficiency of the filter membrane.

Description

Ultrafiltration membrane guiding and filtering equipment for urban sewage treatment

Technical Field

The invention relates to the technical field of sewage treatment, in particular to ultrafiltration membrane guiding and filtering equipment for urban sewage treatment.

Background

Urban sewage, namely domestic sewage, industrial wastewater and runoff sewage in urban area range is generally collected by urban pipelines and discharged into water after being treated by urban sewage treatment plants, preliminary filtration, biological treatment and other steps are generally adopted in sewage treatment to carry out pretreatment, and finally fine treatment is carried out on the sewage, wherein the fine treatment generally needs to adopt ultrafiltration membrane guiding filtration equipment, and the ultrafiltration membrane water treatment utilizes the micropore screening function of the surface of the ultrafiltration membrane to intercept colloid, particles and substances with relatively high molecular weight in water, thereby realizing the function of purifying raw liquid.

The current milipore filter guide filtration equipment adopts and installs a plurality of fixed barrels that adopt the filter membrane in the filtration jar, and impurity and tiny particle can enter into in the micropore, when clearing up it, need unpack the filtration jar to the filter membrane washs, and is less to its meticulous efficiency.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide ultrafiltration membrane guiding and filtering equipment for urban sewage treatment, which can overcome the problems or at least partially solve the problems.

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

The ultrafiltration membrane guiding filter equipment for urban sewage treatment comprises a plurality of filter tanks, a sealing cover, a threaded sleeve, an annular cavity, a driving assembly, a plurality of nozzles, a hose, a water supply assembly and a controller, wherein the sealing cover is in threaded connection with the upper end of the filter tanks, the bottom plate and the top plate are arranged in the filter tanks, the fixed barrels are fixedly connected between the bottom plate and the top plate, the filter membrane is arranged on the outer side of the fixed barrels, a first cavity is arranged between the filter tanks and the filter membrane, a second cavity is arranged between the sealing cover and the top plate, a first water supply pipe communicated with the first cavity, a first water drain pipe communicated with the second cavity is arranged on the sealing cover, the sewage discharging assembly is arranged at the lower end of the filter tank, the threaded sleeve is arranged in the fixed barrels, the annular cavity is arranged in the threaded sleeve, the driving assembly is used for driving the threaded sleeve to reciprocate in the fixed barrels, the plurality of nozzles are arranged on the threaded sleeve, the hose is fixedly arranged on the threaded sleeve, the hose is communicated with the annular cavity, the water supply assembly is used for supplying water to the hose, and the controller is fixedly arranged on the filter tanks.

Preferably, the water supply device further comprises a water supply pump, a plurality of first water supply pipes are communicated through second water supply pipes, a water supply end of the water supply pump is communicated with one end of the second water supply pipes, and a plurality of first water discharge pipes are communicated through second water discharge pipes.

In order to be convenient for discharge abluent sewage, further, the blowdown subassembly is including the fixed first sealing ring that sets up in the filter tank lower extreme, be provided with a plurality of intercommunication mouths between first sealing ring and the first cavity, the first dirt pipe of taking out of fixedly connected with on the first sealing ring, a plurality of first dirt pipe of taking out is linked together through the second dirt pipe of taking out, the one end fixedly connected with of second dirt pipe takes out the sewage pump.

In order to facilitate driving of the threaded sleeve to reciprocate, further, the driving assembly comprises a screw rod which is hermetically rotated in the bottom plate, the screw rod is rotatably arranged in the fixed barrel, a first motor matched with the screw rod is fixedly connected to the bottom plate, limiting rods are symmetrically arranged in the fixed barrel, the threaded sleeve is hermetically slid on the limiting rods, the threaded sleeve is in threaded connection with the screw rod, and a connecting plate is fixedly connected between the two limiting rods.

In order to be convenient for supply water to the hose in, further, the water supply assembly is including sealing the second sealing ring of rotation in the filtration jar, one side fixedly connected with of filtration jar with the first wash pipe of second sealing ring intercommunication, a plurality of majority first wash pipes are linked together through the second wash pipe, the one end of second wash pipe is provided with the wash water pump, the one end of hose is linked together with the second sealing ring.

In order to be convenient for filtration membrane pressurized is even, further, fixedly connected with fixed pipe between bottom plate and the roof, just fixed pipe and the coaxial setting of bottom plate, a plurality of water permeable openings have been seted up on the fixed pipe, the water permeable opening is linked together with first cavity, first delivery pipe is linked together with fixed pipe.

Preferably, the first water supply pipe is fixedly connected with the sealing cover, and one end of the first water supply pipe is in threaded sealing connection with the fixing pipe.

In order to facilitate turbulent flow of sewage in the first cavity, further, the bottom of the filter tank is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a bottom plate, and the bottom plate and the top plate are in sealing rotation connection with the filter tank.

In order to facilitate the rotation of the fixed barrel, further, an inner gear is fixedly connected in the filtering tank, a plurality of outer gears are rotatably arranged on the top plate, the inner gear is meshed with the outer gears, and the outer gears are fixedly connected with the fixed barrel.

In order to be convenient for detect the water level in the first cavity, further, the downside of roof fixedly connected with water level sensor and manometer.

Compared with the prior art, the invention provides the ultrafiltration membrane guiding and filtering equipment for urban sewage treatment, which has the following beneficial effects:

1. This milipore filter guide filtration equipment for municipal sewage treatment, start through the first motor of controller control, first motor passes through lead screw drive thread bush reciprocating motion in fixed bucket, and through the wash water pump, first wash pipe and second wash pipe supply water to the second seal intra-annular, the annular intracavity is supplied with through the hose to the clear water in the second seal intra-annular, spout at last, carry out the circulation back flush to filtration membrane, thereby prevent effectively that too much impurity of adhesion from influencing its filter effect on the filtration membrane, prevent simultaneously that filtration membrane local pressurized is too big to lead to impurity to enter into the space of filtration membrane in influence later stage to it clean.

2. This milipore filter guide filtration equipment for municipal sewage treatment, after using a period, wash the filtration membrane in every filtration jar one by one, solenoid valve in the first delivery pipe and the solenoid valve in the first drain pipe on the filtration jar that needs abluent at present through controller control, and open through the intraductal solenoid valve of first dirt of taking out of controller control, sewage in the first cavity enters into in the filtration jar through the intercommunication mouth in the first seal ring, set up the pump machine according to setting for speed through second dirt pipe section port department and take out sewage, thereby discharge the higher sewage of impurity content in the filtration jar effectively, wash the filtration membrane once more through spout spun clear water simultaneously, impurity on the filtration membrane enters into the sewage in the first cavity, thereby need not to dismantle and can wash the filtration membrane, the cleaning efficiency to filtration membrane has been improved effectively.

3. This milipore filter guide filtration equipment for municipal sewage treatment drives the bottom plate through the second motor and rotates in the filtration jar, and a plurality of fixed barrels are rotated in the filtration jar this moment, makes the aquatic in the first cavity produce the turbulent flow to prevent effectively that impurity from excessively attaching on filtration membrane, simultaneously when the roof rotates, make fixed barrel drive filtration membrane rotation under the effect of internal gear and external gear, thereby make filtration membrane even with water inlet exhaust water contact, and then prevent filtration membrane local jam effectively.

4. The device has the advantages that the device does not relate to the parts which are the same as or can be realized by adopting the prior art, the filtering effect is effectively prevented from being influenced by excessive impurities attached to the filtering membrane, the filtering membrane is cleaned in the later period, the filtering membrane can be cleaned without disassembly, and the cleaning efficiency of the filtering membrane is effectively improved.

Drawings

FIG. 1 is a schematic diagram of an ultrafiltration membrane guiding and filtering device for urban sewage treatment;

FIG. 2 is a schematic cross-sectional view of a filtration tank in an ultrafiltration membrane-guided filtration apparatus for municipal wastewater treatment according to the invention;

FIG. 3 is an enlarged schematic view of the ultrafiltration membrane-guided filtration apparatus for municipal wastewater treatment of the invention at A in FIG. 2;

FIG. 4 is a schematic diagram of a partial structure of an ultrafiltration membrane guiding and filtering device for urban sewage treatment according to the present invention;

FIG. 5 is an enlarged schematic view of the ultrafiltration membrane-guided filtration apparatus for municipal wastewater treatment of the invention at B in FIG. 4;

FIG. 6 is a schematic view of a partial cross section of an ultrafiltration membrane-guided filtration apparatus for municipal wastewater treatment according to the invention;

fig. 7 is an enlarged schematic view of the ultrafiltration membrane-guided filtration apparatus for municipal wastewater treatment of fig. 6 at C.

In the figure, 1, a filter tank, 101, a sealing cover, 102, a first water supply pipe, 103, a second water supply pipe, 104, a water supply pump, 105, a first water drain pipe, 106, a second water drain pipe, 107, a communication port, 108, a first sealing ring, 109, a first sewage pumping pipe, 110, a second sewage pumping pipe, 111, a sewage pumping pump, 112, a second sealing ring, 113, a first cleaning pipe, 114, a second cleaning pipe, 115, a cleaning water pump, 2, a bottom plate, 201, a top plate, 202, a fixed barrel, 203, a filtering membrane, 204, a fixed pipe, 205, a water permeable port, 206, an internal gear, 207, an external gear, 208, a second motor, 3, a screw rod, 301, a first motor, 302, a limit rod, 303, a connecting plate, 304, a threaded sleeve, 305, an annular cavity, 306, a spout, 307, a hose, 4, a first cavity, 401, a second cavity, 402, a water level sensor, 403, a pressure gauge, 404 and a controller are shown.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Example 1:

Referring to fig. 1 to 7, an ultrafiltration membrane-guided filtration apparatus for municipal sewage treatment comprises a plurality of filtration tanks 1, a sealing cover 101 screwed to the upper end of the filtration tank 1, a plurality of fixed barrels 202 fixedly connected between the bottom plate 2 and the top plate 201, a filtration membrane 203 arranged outside the fixed barrels 202, a first cavity 4 arranged between the filtration tank 1 and the filtration membrane 203, a second cavity 401 arranged between the sealing cover 101 and the top plate 201, a first water supply pipe 102 communicated with the first cavity 4, a first drain pipe 105 communicated with the second cavity 401 and arranged on the sealing cover 101, a sewage disposal assembly arranged at the lower end of the filtration tank 1, a screw sleeve 304 arranged in the fixed barrels 202, an annular cavity 305 arranged in the screw sleeve 304, a driving assembly for driving the screw sleeve 304 to reciprocate in the fixed barrels 202, a plurality of nozzles 306 arranged on the screw sleeve 304, a hose 307 fixedly arranged on the screw sleeve 304, a hose 307 communicated with the annular cavity 305, a hose assembly 307 for controlling the hose and a hose assembly 404 arranged on the filtration tank 1.

The water supply pump 104 is further included, the plurality of first water supply pipes 102 are communicated through a second water supply pipe 103, the water supply end of the water supply pump 104 is communicated with one end of the second water supply pipe 103, and the plurality of first water discharge pipes 105 are communicated through a second water discharge pipe 106.

The blowdown subassembly is including fixed setting up the first sealing ring 108 at filter tank 1 lower extreme, is provided with a plurality of communication ports 107 between first sealing ring 108 and the first cavity 4, the first dirt pipe 109 of taking out of fixedly connected with on the first sealing ring 108, a plurality of first dirt pipes 109 are linked together through the second dirt pipe 110 of taking out, and the one end fixedly connected with of second dirt pipe 110 takes out sewage pump 111.

The driving assembly comprises a screw rod 3 which is hermetically rotated in a bottom plate 2, the screw rod 3 is rotationally arranged in a fixed barrel 202, a first motor 301 matched with the screw rod 3 is fixedly connected to the bottom plate 2, limiting rods 302 are symmetrically arranged in the fixed barrel 202, a thread bush 304 is hermetically slid on the limiting rods 302, the thread bush 304 is in threaded connection with the screw rod 3, and a connecting plate 303 is fixedly connected between the two limiting rods 302.

The water supply assembly comprises a second sealing ring 112 which is sealed and rotated in the filter tank 1, one side of the filter tank 1 is fixedly connected with a first cleaning pipe 113 communicated with the second sealing ring 112, a plurality of first cleaning pipes 113 are communicated through a second cleaning pipe 114, one end of the second cleaning pipe 114 is provided with a cleaning water pump 115, and one end of a hose 307 is communicated with the second sealing ring 112.

In the sewage treatment process, preliminary filtration, biological treatment and other pretreatment are carried out on sewage through a large-particle filtering mechanism, then the sewage after the preliminary treatment is supplied into the first cavity 4 through the water supply pump 104, the second water supply pipe 103 and the first water supply pipe 102, and the sewage is filtered again through the filtering membrane 203 under the action of water pressure.

In the filtering process, the first motor 301 is controlled to start by the controller 404, the first motor 301 drives the threaded sleeve 304 to reciprocate in the fixed barrel 202 through the screw rod 3, water is supplied to the second sealing ring 112 through the cleaning water pump 115, the first cleaning pipe 113 and the second cleaning pipe 114, clean water in the second sealing ring 112 is supplied to the annular cavity 305 through the hose 307, and finally sprayed out through the spray nozzle 306 to circularly back wash the filtering membrane 203, so that excessive impurities attached to the filtering membrane 203 are effectively prevented from affecting the filtering effect, and meanwhile, the impurities are effectively prevented from entering into a gap of the filtering membrane 203 to affect the cleaning of the filtering membrane in the later stage due to the fact that the local excessive pressure of the filtering membrane 203 is effectively prevented.

After a period of use, wash the filtration membrane 203 in every filtration jar 1 one by one, the solenoid valve in the first delivery pipe 102 and the solenoid valve in the first drain pipe 105 on the filtration jar 1 that needs to wash at present are controlled through controller 404, and the solenoid valve in the first dirt suction pipe 109 is opened through controller 404 control, sewage in the first cavity 4 in filtration jar 1 enters into in the first sealing ring 108 through the intercommunication mouth 107, set up the pump according to the settlement rate through second dirt suction pipe 110 section port department and take away sewage, thereby discharge the higher sewage of impurity content in the filtration jar 1 effectively, wash filtration membrane 203 again through the clear water of spout 306 blowout simultaneously, impurity on the filtration membrane 203 enters into the sewage in the first cavity 4, thereby need not to dismantle and can wash filtration membrane 203, the cleaning efficiency to filtration membrane 203 has been improved effectively.

Example 2:

referring to fig. 1 to 7, an ultrafiltration membrane guide filtration apparatus for treating municipal sewage is basically the same as that of embodiment 1, further, a fixed pipe 204 is fixedly connected between a bottom plate 2 and a top plate 201, and the fixed pipe 204 is coaxially arranged with the bottom plate 2, a plurality of water permeable openings 205 are formed in the fixed pipe 204, the water permeable openings 205 are communicated with a first cavity 4, and a first water supply pipe 102 is communicated with the fixed pipe 204.

The first water supply pipe 102 is fixedly connected with the sealing cover 101, and one end of the first water supply pipe 102 is in threaded sealing connection with the fixing pipe 204.

When the sewage to be filtered is supplied into the filter tank 1, the sewage in the first water supply pipe 102 enters the fixed pipe 204 and is subjected to flow equalization through the water permeable opening 205 on the fixed pipe 204, so that the filter membrane 203 is effectively prevented from being blocked in a high-pressure state for a long time, and the filter membrane 203 is further conveniently cleaned subsequently.

Example 3:

Referring to fig. 1 to 7, an ultrafiltration membrane guide filtration apparatus for municipal sewage treatment is basically the same as that of embodiment 1, further, a second motor 208 is fixedly connected to the bottom of the filtration tank 1, and the output end of the second motor 208 is fixedly connected to the bottom plate 2, and both the bottom plate 2 and the top plate 201 are hermetically and rotatably connected to the filtration tank 1.

An inner gear 206 is fixedly connected in the filter tank 1, a plurality of outer gears 207 are rotatably arranged on the top plate 201, the inner gear 206 is meshed with the outer gears 207, and the outer gears 207 are fixedly connected with the fixed barrel 202.

The bottom plate 2 is driven to rotate in the filter tank 1 by the second motor 208, and at the moment, the fixed barrels 202 rotate in the filter tank 1 to enable water in the first cavity 4 to generate turbulence, so that impurities are effectively prevented from being excessively attached to the filter membrane 203, and meanwhile, when the top plate 201 rotates, the fixed barrels 202 drive the filter membrane 203 to rotate under the action of the inner gear 206 and the outer gear 207, so that the filter membrane 203 is enabled to be uniformly contacted with water discharged from the water permeable port 205, and further local blockage of the filter membrane 203 is effectively prevented.

Example 4:

Referring to fig. 1 to 7, an ultrafiltration membrane-guided filtration apparatus for municipal sewage treatment is basically the same as that of embodiment 1, and further, a water level sensor 402 and a pressure gauge 403 are fixedly connected to the lower side of a top plate 201.

The water level in the first cavity 4 is judged in real time through the water level sensor 402, and when the sewage in the first cavity is completely discharged, the controller 404 controls the relevant electromagnetic valve to be opened and closed, so that the cleaned filter tank 1 is continuously put into use.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. An ultrafiltration membrane guided filtration apparatus for municipal sewage treatment, comprising, a plurality of filtration tanks (1), characterized by further comprising:

The sealing cover (101) is connected to the upper end of the filtering tank (1) in a threaded manner;

A bottom plate (2) and a top plate (201) are arranged in the filter tank (1), and a plurality of fixed barrels (202) are fixedly connected between the bottom plate (2) and the top plate (201);

a filter membrane (203) arranged outside the fixed barrel (202);

a first cavity (4) is arranged between the filter tank (1) and the filter membrane (203), and a second cavity (401) is arranged between the sealing cover (101) and the top plate (201);

a first water supply pipe (102) communicating with the first cavity (4);

a first drain pipe (105) communicating with the second cavity (401) and provided on the seal cover (101);

The sewage discharging assembly is arranged at the lower end of the filtering tank (1);

the thread sleeve (304) is arranged in the fixed barrel (202);

an annular cavity (305) disposed within the threaded sleeve (304);

a drive assembly for driving the threaded sleeve (304) to reciprocate within the stationary barrel (202);

a plurality of nozzles (306) arranged on the thread sleeve (304);

a hose (307) fixedly arranged on the threaded sleeve (304), and the hose (307) is communicated with the annular cavity (305);

a water supply assembly for supplying water into the hose (307);

And the controller (404) is fixedly arranged on the filter tank (1).

2. The ultrafiltration membrane guiding and filtering apparatus for treating municipal sewage according to claim 1, further comprising a water supply pump (104), wherein a plurality of the first water supply pipes (102) are connected to each other via a second water supply pipe (103), a water supply end of the water supply pump (104) is connected to one end of the second water supply pipe (103), and a plurality of the first water discharge pipes (105) are connected to each other via a second water discharge pipe (106).

3. The ultrafiltration membrane guiding and filtering device for urban sewage treatment according to claim 1, wherein the sewage draining assembly comprises a first sealing ring (108) fixedly arranged at the lower end of the filtering tank (1), a plurality of communication ports (107) are formed between the first sealing ring (108) and the first cavity (4), a first sewage pumping pipe (109) is fixedly connected to the first sealing ring (108), a plurality of the first sewage pumping pipes (109) are communicated through a second sewage pumping pipe (110), and one end of the second sewage pumping pipe (110) is fixedly connected with a sewage pumping pump (111).

4. The ultrafiltration membrane guiding and filtering device for urban sewage treatment according to claim 1, wherein the driving assembly comprises a screw rod (3) which is hermetically rotated in a bottom plate (2), the screw rod (3) is rotatably arranged in a fixed barrel (202), a first motor (301) matched with the screw rod (3) is fixedly connected on the bottom plate (2), limit rods (302) are symmetrically arranged in the fixed barrel (202), a thread sleeve (304) is hermetically slid on the limit rods (302), the thread sleeve (304) is in threaded connection with the screw rod (3), and a connecting plate (303) is fixedly connected between the two limit rods (302).

5. The ultrafiltration membrane guiding and filtering device for municipal sewage treatment according to claim 1, wherein the water supply assembly comprises a second sealing ring (112) which is sealed and rotated in the filtering tank (1), a first cleaning pipe (113) communicated with the second sealing ring (112) is fixedly connected to one side of the filtering tank (1), a plurality of first cleaning pipes (113) are communicated with each other through the second cleaning pipe (114), a cleaning water pump (115) is arranged at one end of the second cleaning pipe (114), and one end of the hose (307) is communicated with the second sealing ring (112).

6. The ultrafiltration membrane guiding and filtering device for urban sewage treatment according to claim 1, wherein a fixed pipe (204) is fixedly connected between the bottom plate (2) and the top plate (201), the fixed pipe (204) is coaxially arranged with the bottom plate (2), a plurality of water permeable openings (205) are formed in the fixed pipe (204), the water permeable openings (205) are communicated with the first cavity (4), and the first water supply pipe (102) is communicated with the fixed pipe (204).

7. The ultrafiltration membrane guided filtration apparatus for municipal sewage treatment according to claim 6, wherein the first water supply pipe (102) is fixedly connected to the sealing cap (101), and one end of the first water supply pipe (102) is screw-tightly connected to the fixing tube (204).

8. The ultrafiltration membrane guiding and filtering device for urban sewage treatment according to claim 6, wherein the bottom of the filtering tank (1) is fixedly connected with a second motor (208), the output end of the second motor (208) is fixedly connected with the bottom plate (2), and the bottom plate (2) and the top plate (201) are both in sealing and rotating connection with the filtering tank (1).

9. The ultrafiltration membrane guided filtration apparatus for municipal sewage treatment according to claim 8, wherein an inner gear (206) is fixedly connected in the filtration tank (1), a plurality of outer gears (207) are rotatably provided on the top plate (201), the inner gear (206) is meshed with the outer gear (207), and the outer gear (207) is fixedly connected with the fixed barrel (202).

10. The ultrafiltration membrane guided filtration apparatus for municipal sewage treatment according to claim 4, wherein a water level sensor (402) and a pressure gauge (403) are fixedly connected to the lower side of the top plate (201).