CN116621243B - Nanofiltration membrane organic pollutant filtering device with hierarchical filtering function - Google Patents
Nanofiltration membrane organic pollutant filtering device with hierarchical filtering function Download PDFInfo
- Publication number
- CN116621243B CN116621243B CN202310653760.1A CN202310653760A CN116621243B CN 116621243 B CN116621243 B CN 116621243B CN 202310653760 A CN202310653760 A CN 202310653760A CN 116621243 B CN116621243 B CN 116621243B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- nanofiltration membrane
- filter
- shell
- filtering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 91
- 238000001914 filtration Methods 0.000 title claims abstract description 88
- 238000001728 nano-filtration Methods 0.000 title claims abstract description 87
- 239000002957 persistent organic pollutant Substances 0.000 title claims abstract description 25
- 239000010865 sewage Substances 0.000 claims abstract description 50
- 238000004140 cleaning Methods 0.000 claims abstract description 34
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 238000011010 flushing procedure Methods 0.000 claims description 28
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 4
- 230000010405 clearance mechanism Effects 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000005374 membrane filtration Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000011001 backwashing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
- C02F2303/14—Maintenance of water treatment installations
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention relates to the technical field of nanofiltration membrane filtration, in particular to a nanofiltration membrane organic pollutant filtering device with a graded filtering function. The technical problems of the invention are as follows: after the nanofiltration membrane is used for too long, impurities are accumulated on the surface of the nanofiltration membrane, so that the filtration efficiency of the nanofiltration membrane is affected, and the nanofiltration membrane is easily damaged by manual removal and cleaning. The utility model provides a nanofiltration membrane organic pollutant filter equipment with hierarchical filtration function, includes fixed frame, fixed frame fixedly connected with filter housing, filter housing sliding connection has the second dead lever, and second dead lever fixedly connected with first piston, fixed frame sliding connection has the third dead lever, third dead lever fixedly connected with second piston. According to the invention, the nanofiltration membrane and the filter screen are continuously switched and backwashed through the first piston and the second piston, and finally the sewage after cleaning is discharged, so that the nanofiltration membrane does not need to be disassembled and assembled back and forth during cleaning, and the nanofiltration membrane cleaning process is simpler and more convenient.
Description
Technical Field
The invention relates to the technical field of nanofiltration membrane filtration, in particular to a nanofiltration membrane organic pollutant filtering device with a graded filtering function.
Background
The nanofiltration membrane is a membrane for selectively separating substances according to molecular size, when the nanofiltration membrane is utilized to filter organic wastewater, small molecules such as water in organic pollutants pass through the nanofiltration membrane, and macromolecules such as organic matters and microorganisms in the organic wastewater are intercepted by the nanofiltration membrane.
After nanofiltration membrane live time overlength, impurity can produce and pile up on nanofiltration membrane surface to influence nanofiltration membrane's filtration efficiency, current washing nanofiltration membrane is mostly manual removal hand washing, wastes time and energy, and can damage nanofiltration membrane when manual washing, causes the waste.
Aiming at the problems, a nanofiltration membrane organic pollutant filtering device with a grading filtering function, which is free of disassembly and cleaning, is developed.
Disclosure of Invention
In order to overcome the defects that the nanofiltration membrane is easy to damage due to manual dismantling and cleaning of the nanofiltration membrane due to the fact that impurities are accumulated on the surface of the nanofiltration membrane after the nanofiltration membrane is used for too long, the filtration efficiency of the nanofiltration membrane is affected, and the nanofiltration membrane organic pollutant filtering device with the grading filtration function is free from disassembly and cleaning.
The utility model provides a nanofiltration membrane organic pollutant filter equipment with hierarchical filtration function, including the fixed frame, fixed frame fixedly connected with filters the casing, filter the first unloading pipe of casing fixedly connected with, filter casing fixedly connected with and intercommunication have the second unloading pipe, second unloading pipe and first unloading pipe intercommunication, fixed frame fixedly connected with backwash shell, backwash shell sliding connection has the sliding plate, fixed frame fixedly connected with electric putter, electric putter's flexible end fixedly connected with first fixed plate, first fixed plate and sliding plate fixed connection, fixed frame fixedly connected with first dead lever, sliding plate and first dead lever sliding connection, filter casing fixedly connected with inlet pipe, filter casing fixedly connected with discharging pipe, first unloading pipe, inlet pipe and discharging pipe all are provided with the solenoid valve, discharging pipe fixedly connected with filter tube, filter tube fixedly connected with nanofiltration membrane, filter tube fixedly connected with backwash pipeline, backwash pipeline is provided with the check valve, filter casing sliding connection has first piston, backwash shell sliding connection has the second piston, fixed frame is provided with power component, the backwash pipeline is provided with filter mechanism, filter tube is provided with protection mechanism.
Preferably, the power component comprises a first motor, the first motor is fixedly connected to a fixed frame, an output shaft of the first motor is fixedly connected with a first gear, the fixed frame is rotationally connected with a first rotating rod, an output shaft of the first motor is connected with the first rotating rod through a belt wheel and a belt, a filter shell is slidably connected with a second fixing rod, the second fixing rod is fixedly connected with a first piston, the fixed frame is slidably connected with a third fixing rod, the third fixing rod is fixedly connected with a second piston, the third fixing rod is slidably connected with a back flushing shell, racks are arranged on the second fixing rod and the third fixing rod, and the racks of the second fixing rod and the third fixing rod are meshed with the first gear.
Preferably, the face of the sliding plate facing the backwash pipe is conical for preventing accumulation of impurities.
Preferably, the second piston is fixedly connected with a limiting ring, the back flushing pipeline is provided with an elastic soft ring, the limiting ring is in sliding connection with the back flushing pipeline, and the limiting ring is in limiting fit with the elastic soft ring.
Preferably, the filter mechanism comprises a filter plate, the filter plate is fixedly connected with a back flushing pipeline through a mounting frame, the back flushing pipeline is rotationally connected with a second rotating rod through the mounting frame, the second rotating rod is rotationally connected with the filter plate, the second rotating rod is fixedly connected with a blade, the second rotating rod is fixedly connected with a scraping plate, and the scraping plate is attached to the filter plate.
Preferably, the protection mechanism comprises a first flow blocking shell, the first flow blocking shell is rotationally connected to the filter pipe, the filter pipe is rotationally connected with a second flow blocking shell, the first flow blocking shell is attached to the second flow blocking shell, holes which are uniformly distributed circumferentially are formed in the first flow blocking shell and the second flow blocking shell, the first flow blocking shell is fixedly connected with a first toothed ring, the first toothed ring is rotationally connected with the discharge pipe, the feed pipe is fixedly connected with a second fixing plate, the second fixing plate is slidably connected with a sliding rod, the sliding rod is fixedly connected with a driving rack, the driving rack is meshed with the first toothed ring, the second fixing plate is fixedly connected with a spring, the sliding rod is fixedly connected with a sliding block, the sliding block is fixedly connected with the spring, and the first flow blocking shell is fixedly connected with a fixing ring.
Preferably, the first choke housing is provided with a filter screen for prefiltering the sewage.
Preferably, the filter screen aperture that the first choked flow casing set up is greater than the nanofiltration membrane aperture of nanofiltration membrane filter spare for carry out the classified filtration to sewage.
Preferably, the filter comprises a filter shell, a filter tube and a backwash pipeline, and is characterized by further comprising a cleaning mechanism, wherein the cleaning mechanism is arranged on the filter shell and comprises a second motor, the second motor is fixedly connected with the filter shell, a rotating shaft of the second motor is fixedly connected with a second gear, the filter shell is rotationally connected with a rotating shell, the filter tube and the backwash pipeline are rotationally connected with the rotating shell, the rotating shell is fixedly connected with a second toothed ring, the rotating shell is fixedly connected with a spoiler uniformly distributed circumferentially, the spoiler uniformly distributed circumferentially is fixedly connected with a rotating ring, and the rotating ring is rotationally connected with the filter tube.
Preferably, the spoiler is fixedly connected with evenly distributed cleaning nozzles, and the spray heads of the cleaning nozzles face the nanofiltration membrane filtering piece.
The beneficial effects of the invention are as follows: according to the invention, the nanofiltration membrane and the filter screen are continuously switched and backwashed through the first piston and the second piston, and finally the cleaned sewage is discharged, so that the nanofiltration membrane is not required to be disassembled and assembled back and forth in the cleaning process, the nanofiltration membrane cleaning process is simpler and more convenient, impurities generated by the backwashed are cleaned through the cooperation of the elastic soft ring and the limiting ring, the backwashed water of the nanofiltration membrane is filtered through the filtering mechanism, the impurities in the sewage are gathered and cleaned, the flow area of the sewage is reduced through the dislocation cooperation of the first choked flow shell and the second choked flow shell, the pressure of the sewage is buffered, the sewage with higher impact force is reduced between the sewage and the nanofiltration membrane filter, the nanofiltration membrane filter is protected, the water flow direction near the nanofiltration membrane filter is changed through the cleaning nozzle rotation, the impurities attached to the surface of the nanofiltration membrane filter is reduced and cleaned when the nanofiltration membrane filter is cleaned, the service time of the nanofiltration membrane filter is prolonged, and the practicability of the device is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a perspective sectional view of the filter housing, backwash housing and other components of the present invention.
FIG. 3 is a perspective cross-sectional view of a filter tube, nanofiltration membrane filter and other parts of the present invention.
Fig. 4 is an enlarged view of the present invention at drawing a.
FIG. 5 is a perspective view of the expanded state of the elastic soft ring and other parts of the present invention.
Fig. 6 is a perspective cross-sectional view of the filter mechanism of the present invention.
Fig. 7 is a perspective sectional view of the protection mechanism of the present invention.
Fig. 8 is a perspective cross-sectional view of a cleaning mechanism of the present invention.
The reference symbols in the drawings: 1: fixed frame, 2: filter housing, 201: first blanking pipe, 202: second unloading pipe, 3: backwash shell, 31: slide plate, 32: electric putter, 33: first fixed plate, 34: first dead lever, 4: feeding pipe, 5: discharging pipe, 6: filter tube, 7: nanofiltration membrane filter, 8: backwash pipeline, 9: check valve, 10: elastic soft ring, 11: limit ring, 12: first motor, 13: first gear, 14: first rotation lever, 15: second dead lever, 16: first piston, 17: third dead lever, 18: second piston, 19: filtration mechanism, 1901: filter board, 1902: second turning lever, 1903: paddles 1904: scraper blade, 20: protection mechanism, 2001: first choke housing, 2002: second choke housing, 2003: first ring gear, 2004: second fixed plate, 2005: slide bar, 2006: rack, 2007: spring, 2008: sliding block, 2009: fixing ring, 21: cleaning mechanism, 2101: second motor, 2102: second gear, 2103: rotating housing, 2104: second toothed ring, 2105: spoiler, 2106: cleaning nozzle, 2107: and rotating the ring.
Detailed Description
The invention will be further described with reference to specific examples, illustrative examples and illustrations of which are provided herein to illustrate the invention, but are not to be construed as limiting the invention.
Example 1: the nanofiltration membrane organic pollutant filtering device with the graded filtering function comprises a fixed frame 1, wherein the fixed frame 1 is fixedly connected with a filtering shell 2, the lower side of the filtering shell 2 is fixedly connected with a first blanking pipe 201 for transporting sewage after filtering large-particle-size impurities, the lower side of the filtering shell 2 is fixedly connected with and communicated with a second blanking pipe 202, the second blanking pipe 202 is communicated with the first blanking pipe 201, the fixed frame 1 is fixedly connected with a backwashing shell 3, the lower side of the backwashing shell 3 is slidingly connected with a sliding plate 31, the upper side surface of the sliding plate 31 is conical and used for preventing impurities from accumulating, the fixed frame 1 is fixedly connected with an electric push rod 32, the telescopic end of the electric push rod 32 is fixedly connected with a first fixed plate 33, the first fixed plate 33 is fixedly connected with the lower side of the sliding plate 31, the fixed frame 1 is fixedly connected with a first fixed rod 34, the sliding plate 31 is in sliding connection with the first fixed rod 34, the left side of the filter shell 2 is fixedly connected and communicated with the feed pipe 4, the upper side of the filter shell 2 is fixedly connected with the discharge pipe 5, the first discharge pipe 201, the feed pipe 4 and the discharge pipe 5 are all provided with electromagnetic valves for controlling sewage to enter and exit, the position where the second discharge pipe 202 is communicated with the first discharge pipe 201 is positioned at the upper side of the electromagnetic valve of the first discharge pipe 201, the lower end of the discharge pipe 5 is fixedly connected and communicated with the filter pipe 6, the outer side of the filter pipe 6 is fixedly connected with the nanofiltration membrane filter 7 for filtering small-particle-size impurities, the lower side of the filter pipe 6 is fixedly connected with the back flushing pipeline 8, the back flushing pipeline 8 is provided with an elastic soft ring 10, the back flushing pipeline 8 is provided with a one-way valve 9, the circulation direction of the one-way valve 9 is from bottom to top, the filter shell 2 is in sliding connection with the first piston 16, the back flushing shell 3 is slidably connected with the second piston 18, the upper side of the fixed frame 1 is fixedly connected with the first motor 12, the output shaft of the first motor 12 is fixedly connected with the first gear 13, the fixed frame 1 is rotatably connected with the first rotating rod 14 through a fixing frame, the output shaft of the first motor 12 is connected with the first rotating rod 14 through a belt wheel and a belt, the filtering shell 2 is slidably connected with the second fixing rod 15, the second fixing rod 15 is fixedly connected with the first piston 16, the fixed frame 1 is slidably connected with the third fixing rod 17, the third fixing rod 17 is fixedly connected with the second piston 18, the third fixing rod 17 is slidably connected with the back flushing shell 3, the upper side of the second piston 18 is fixedly connected with the limiting ring 11, the limiting ring 11 is slidably connected with the back flushing pipeline 8, the limiting ring 11 is in limiting fit with the elastic soft ring 10, the second fixing rod 15 and the third fixing rod 17 are both provided with racks, the racks of the second fixing rod 15 and the third fixing rod 17 are both meshed with the first gear 13, the back flushing pipeline 8 is provided with the filtering mechanism 19, and the filtering pipe 6 is provided with the protection mechanism 20.
When the device is used for filtering sewage, a user firstly opens the electromagnetic valve of the feed pipe 4 and the discharge pipe 5 at the same time, the sewage is introduced into the filtering shell 2, the protection mechanism 20 firstly filters impurities with larger particle sizes in the sewage, then the sewage passes through the nanofiltration membrane filtering piece 7 and is filtered, when the sewage is filtered, the user controls the cleaning mechanism 21 to simultaneously clean the impurities attached to the nanofiltration membrane filtering piece 7, the filtered sewage is output outwards through the filtering pipe 6 and the discharge pipe 5, if the water hammer effect is generated in the feed pipe 4, the water pressure in the feed pipe 4 is instantaneously increased, then the sewage with increased pressure triggers the protection mechanism 20, the instantaneously increased water pressure is buffered, the nanofiltration membrane is protected, after the water hammer effect is finished, the protection mechanism 20 is reset, when the sewage is filtered, the user starts the cleaning mechanism 21 to clean the outer side of the nanofiltration membrane filtering piece 7, the user opens the electromagnetic valve on the first discharge pipe 201, the sewage in the filtering shell 2 simultaneously enters the backwash shell 3 through the first discharge pipe 201 and the second discharge pipe 202 until the sewage is fully filled in the second discharge pipe 18, and then the user stops pouring the sewage into the electromagnetic valve 3 when the electromagnetic valve is fully filled in the shell 201.
When the device is used for a long time, a nanofiltration membrane and a filter screen in the device are required to be cleaned, when the device is cleaned, a user simultaneously closes an electromagnetic valve of a feed pipe 4 and a discharge pipe 5, sewage is stopped to be fed into the device, then the user starts a first motor 12, the first motor 12 drives a first gear 13 to rotate through a rotating shaft, rack meshing of the first gear 13 and a second fixing rod 15 drives a first piston 16 to move upwards, rack meshing of the first gear 13 and a third fixing rod 17 drives a second piston 18 to move downwards, when the second piston 18 moves downwards, the second piston 18 presses sewage in a backwashing shell 3 downwards, after filtering the sewage by a filtering mechanism 19, the sewage enters a backwashing pipeline 8, and meanwhile, the second piston 18 drives a limiting ring 11 to move downwards, in the process of the downward movement of the limiting ring 11, the limiting ring 11 gradually loses the limit of an elastic soft ring 10, because the filtered water is continuously pressed upwards, the conical surface of the elastic soft ring 10 gradually expands outwards along with the expansion, and slowly absorbs the filtered water, when the elastic soft ring 10 makes the filtered water enter the filter pipe 4 and the filter pipe 2 when the filtered water enters the filter pipe 2, and the filter pipe enters the sealing shell 2, and the filter membrane is formed by the closed after the sewage enters the filter pipe 2, and the filter pipe is formed by the filter pipe, and the filter pipe is closed, and the filter membrane is filled into the filter pipe 2.
In the back flushing cleaning process, after the first piston 16 and the second piston 18 move to the limit distance, a user opens the electromagnetic valve of the first blanking pipe 201, meanwhile, the first motor 12 is controlled to drive the first gear 13 to rotate reversely, the first gear 13 drives the first piston 16 to move downwards through the second fixing rod 15, the first gear 13 drives the second piston 18 to move upwards through the third fixing rod 17, sewage in the filtering shell 2 is input into the back flushing shell 3 through the first blanking pipe 201 and the second blanking pipe 202 due to pressure difference until the first piston 16 and the second piston 18 are reset, the user closes the electromagnetic valve of the first blanking pipe 201, and the steps are repeated to clean the nanofiltration membrane until the cleaning is completed.
After the back flushing is finished, the user controls the telescopic end of the electric push rod 32 to extend and drive the sliding plate 31 to move downwards, simultaneously opens the electromagnetic valve of the first discharging pipe 201, and controls the first motor 12 to reversely rotate to drive the first piston 16 and the second piston 18 to reset, when the second piston 18 resets, the second piston 18 drives the limiting ring 11 to move upwards, the limiting ring 11 moves upwards to limit the elastic soft ring 10 again because the elastic soft ring 10 is in an expanded state, water stored in the elastic soft ring 10 is extruded outwards, the filtering mechanism 19 is backwashed, at the moment, the sliding plate 31 is opened in the space below the back flushing shell 3, then sewage is discharged through a gap between the sliding plate 31 and the back flushing shell 3, and meanwhile, because the upper side surface of the sliding plate 31 is a conical surface, the sewage is not remained on the sliding plate 31 after being discharged, after the sewage is discharged, the user controls the telescopic end of the electric push rod 32 to retract, and drives the sliding plate 31 to move upwards to reset, at the moment, the electromagnetic valve of the feeding pipe 4 and the discharging pipe 5 is opened, the step is carried out again, the sewage is filtered by the user, the filter piston 16 is continuously, the filter is replaced by the second piston 18, and the filter membrane is continuously cleaned, and the filter membrane is cleaned conveniently and washed and replaced.
Example 2: on the basis of embodiment 1, as shown in fig. 3, 5 and 6, the filtering mechanism 19 comprises a filter plate 1901, the filter plate 1901 is fixedly connected to the inner side of the back flushing pipeline 8 through a mounting frame, the back flushing pipeline 8 is rotatably connected with a second rotating rod 1902 through the mounting frame, the second rotating rod 1902 is rotatably connected with the filter plate 1901, the upper end of the second rotating rod 1902 is fixedly connected with a blade 1903, the lower end of the second rotating rod 1902 is fixedly connected with a scraper 1904, the scraper 1904 is attached to the filter plate 1901, and the cross section of the scraper 1904 is a right triangle.
As shown in fig. 2-4 and 7, the protection mechanism 20 includes a first choke housing 2001, the first choke housing 2001 is rotatably connected to the outside of the filter pipe 6, a second choke housing 2002 is rotatably connected to the outside of the filter pipe 6, the inside of the first choke housing 2001 is attached to the outside of the second choke housing 2002, holes uniformly distributed circumferentially are provided in both the first choke housing 2001 and the second choke housing 2002, a filter screen is provided in the holes uniformly distributed circumferentially of the first choke housing 2001, the filter screen aperture of the first choke housing 2001 is larger than the nanofiltration membrane aperture of the nanofiltration membrane filter 7, the filter screen of the first choke housing 2001 is used for prefiltering sewage, a first toothed ring 2003 is fixedly connected to the upper side of the first choke housing 2001, the first toothed ring 2003 is rotatably connected to the outside of the discharge pipe 5, a second fixed plate 2004 is fixedly connected to the inside of the feed pipe 4, a sliding rod 2005 is slidably connected to the second fixed plate 2004, the right end of the sliding rod 2005 is fixedly connected to a driving rack 2006 is meshed with the first toothed ring 2003, the left side of the second fixed plate 2004 is fixedly connected to the left side of the sliding rod 2005, and the left end of the sliding rod 2007 is fixedly connected to the left toothed bar 2007 of the sliding block 2007 is fixedly connected to the left fixed to the left toothed bar 2007.
When the device is used for filtering sewage, after the sewage enters the filtering shell 2 through the feeding pipe 4, the filter screen of the first choked flow shell 2001 filters impurities with large particle size in the sewage to obtain the sewage, and then the sewage enters a space between the second choked flow shell 2002 and the nanofiltration membrane filter 7, is filtered by the nanofiltration membrane filter 7, enters the discharging pipe 5 through the filtering pipe 6, and is discharged.
When the water hammer effect happens suddenly to the feed pipe 4, the water pressure in the feed pipe 4 is instantaneously increased, the sewage extrudes the sliding block 2008 to move rightwards and extrudes the spring 2007, the sliding block 2008 drives the driving rack 2006 to move rightwards through the sliding rod 2005, the driving rack 2006 drives the first choke housing 2001 to rotate through the first toothed ring 2003, the first choke housing 2001 and the second choke housing 2002 are dislocated, the flow area of sewage is reduced, the temporarily increased pressure is buffered, the impact force of the sewage is reduced to a safe range before the impact force contacts the nanofiltration membrane filter 7, the nanofiltration membrane filter 7 is protected, after the water hammer effect is finished, the spring 2007 drives the sliding block 2008 to move leftwards to reset, the sliding block 2008 drives the driving rack 2006 to move leftwards through the sliding rod 2005, the driving rack 2006 drives the first choke housing 2001 to rotate and reset through the first toothed ring 2003, and then the sewage is filtered continuously.
Example 3: on the basis of embodiment 2, as shown in fig. 4 and 8, the device further comprises a cleaning mechanism 21 for cleaning the nanofiltration membrane filter element 7, the cleaning mechanism 21 is arranged on the filtering shell 2, the cleaning mechanism 21 comprises a second motor 2101, the second motor 2101 is fixedly connected to the lower side of the filtering shell 2, a rotating shaft of the second motor 2101 is fixedly connected with a second gear 2102, the filtering shell 2 is rotationally connected with a rotating shell 2103, the filtering pipe 6 and the backwashing pipeline 8 are both rotationally connected with the rotating shell 2103, the outer side of the rotating shell 2103 is fixedly connected with a second toothed ring 2104, the upper side of the rotating shell 2103 is fixedly connected with a spoiler 2105 which is circumferentially and uniformly distributed, the spoiler 2105 is fixedly connected with a cleaning nozzle 2106 which is axially and uniformly distributed, a nozzle of the cleaning nozzle 2106 faces the nanofiltration membrane filter element 7, the upper side of the spoiler 2105 is fixedly connected with a rotating ring 2107 which is circumferentially and uniformly distributed, and the rotating ring 2107 is rotationally connected with the filtering pipe 6.
When the device is used for filtering sewage, a user starts the second motor 2101, the rotating shaft of the second motor 2101 drives the second toothed ring 2104 to rotate through the second gear 2102, the second toothed ring 2104 drives the spoiler 2105 which is circumferentially distributed to synchronously rotate through the rotating shell 2103, the spoiler 2105 drives the cleaning nozzle 2106 to rotate, water in the filtering shell 2 enters the cleaning nozzle 2106 when the cleaning nozzle 2106 rotates, and is sprayed out to the nanofiltration membrane filter 7 through the cleaning nozzle 2106 and cleans the nanofiltration membrane filter 7, the water flow direction near the nanofiltration membrane filter 7 is changed through the rotation of the cleaning nozzle 2106, so that the nozzle 2106 reduces and cleans impurities attached to the surface of the nanofiltration membrane filter 7 when the sewage is filtered, the service life of the nanofiltration membrane filter 7 is prolonged, and the practicability of the device is improved.
When sewage in the back flushing shell 3 passes through the back flushing pipeline 8 and back flushing is carried out on the nanofiltration membrane filtering piece 7, the sewage is filtered by the filter plate 1901 and then continues to move upwards, the upward sewage drives the blade 1903 to rotate, the blade 1903 drives the scraper 1904 to synchronously rotate through the second rotating rod 1902, and the scraper 1904 simultaneously cleans and scrapes impurities attached to the lower part of the filter plate 1901 when rotating, so that the filter plate 1901 always has a good filtering effect.
It is to be understood that the above description is intended to be illustrative only and is not intended to be limiting. Those skilled in the art will appreciate variations of the present invention that are intended to be included within the scope of the claims herein.
Claims (8)
1. Nanofiltration membrane organic pollutant filtering device with hierarchical filtering function is characterized in that: including fixed frame (1), fixed frame (1) fixedly connected with filters casing (2), filter casing (2) fixedly connected with first unloading pipe (201), filter casing (2) fixedly connected with and intercommunication have second unloading pipe (202), second unloading pipe (202) and first unloading pipe (201) intercommunication, fixed frame (1) fixedly connected with back flush casing (3), back flush casing (3) inside downside sliding connection has sliding plate (31), fixed frame (1) fixedly connected with electric putter (32), electric putter (32)'s telescopic end fixedly connected with first fixed plate (33), first fixed plate (33) and sliding plate (31) fixedly connected with, fixed frame (1) fixedly connected with first dead lever (34), sliding plate (31) and first dead lever (34) sliding connection, filter casing (2) fixedly connected with inlet pipe (4), filter casing (2) fixedly connected with outlet pipe (5), first unloading pipe (201), first outlet pipe (4) and outlet pipe (5) all are provided with solenoid valve, outlet pipe (5) fixedly connected with electric putter (33), filter pipe (6) are connected with filter membrane (8) fixedly connected with filter tube (6), the back flush pipeline (8) is provided with a one-way valve (9), the filter shell (2) is connected with a first piston (16) in a sliding way, the first piston (16) is positioned above the nanofiltration membrane filter piece (7), the back flush shell (3) is connected with a second piston (18) in a sliding way, the fixed frame (1) is provided with a power assembly, the back flush pipeline (8) is provided with a filter mechanism (19), the filter pipe (6) is provided with a protection mechanism (20), and sewage in the filter shell (2) enters the back flush shell (3) through a first blanking pipe (201) and a second blanking pipe (202) at the same time;
the power assembly comprises a first motor (12), the first motor (12) is fixedly connected to a fixed frame (1), an output shaft of the first motor (12) is fixedly connected with a first gear (13), the fixed frame (1) is rotationally connected with a first rotating rod (14), an output shaft of the first motor (12) is connected with the first rotating rod (14) through a belt wheel and a belt, a filter shell (2) is slidably connected with a second fixing rod (15), the second fixing rod (15) is fixedly connected with a first piston (16), the fixed frame (1) is slidably connected with a third fixing rod (17), the third fixing rod (17) is fixedly connected with a second piston (18), the third fixing rod (17) is slidably connected with a back flushing shell (3), racks are respectively arranged on the second fixing rod (15) and the third fixing rod (17), and the racks of the second fixing rod (15) and the third fixing rod (17) are meshed with the first gear (13);
the second piston (18) is fixedly connected with a limiting ring (11), the back flushing pipeline (8) is provided with an elastic soft ring (10), the limiting ring (11) is in sliding connection with the back flushing pipeline (8), and the limiting ring (11) is in limiting fit with the elastic soft ring (10).
2. The nanofiltration membrane organic pollutant filtering device with the hierarchical filtering function according to claim 1, wherein the nanofiltration membrane organic pollutant filtering device is characterized in that: the surface of the sliding plate (31) facing the back flushing pipeline (8) is conical and is used for preventing impurities from accumulating.
3. The nanofiltration membrane organic pollutant filtering device with the hierarchical filtering function according to claim 1, wherein the nanofiltration membrane organic pollutant filtering device is characterized in that: the filtering mechanism (19) comprises a filtering plate (1901), the filtering plate (1901) is fixedly connected with a back flushing pipeline (8) through a mounting frame, the back flushing pipeline (8) is rotatably connected with a second rotating rod (1902) through the mounting frame, the second rotating rod (1902) is rotatably connected with the filtering plate (1901), the second rotating rod (1902) is fixedly connected with a blade (1903), the second rotating rod (1902) is fixedly connected with a scraping plate (1904), and the scraping plate (1904) is attached to the filtering plate (1901).
4. The nanofiltration membrane organic pollutant filtering device with the hierarchical filtering function according to claim 1, wherein the nanofiltration membrane organic pollutant filtering device is characterized in that: the protection mechanism (20) comprises a first flow blocking shell (2001), the first flow blocking shell (2001) is rotationally connected to a filter pipe (6), the filter pipe (6) is rotationally connected with a second flow blocking shell (2002), the first flow blocking shell (2001) is attached to the second flow blocking shell (2002), holes which are uniformly distributed in the circumferential direction are formed in the first flow blocking shell (2001) and the second flow blocking shell (2002), the first flow blocking shell (2001) is fixedly connected with a first toothed ring (2003), the first toothed ring (2003) is rotationally connected with a discharging pipe (5), a feeding pipe (4) is fixedly connected with a second fixed plate (2004), the second fixed plate (2004) is slidingly connected with a sliding rod (2005), the sliding rod (2005) is fixedly connected with a driving rack (2006), the driving rack (2006) is meshed with the first toothed ring (2003), the second fixed plate (2004) is fixedly connected with a spring (2007), the sliding rod (2005) is fixedly connected with a sliding block (2008), the sliding block (2008) is fixedly connected with the spring (2007), and the first flow blocking shell (2009) is fixedly connected with a fixed ring (2009).
5. The nanofiltration membrane organic pollutant filtering device with the graded filtering function according to claim 4, wherein the nanofiltration membrane organic pollutant filtering device is characterized in that: the first choke housing (2001) is provided with a filter screen for prefiltering the sewage.
6. The nanofiltration membrane organic pollutant filtering device with the graded filtering function according to claim 4, wherein the nanofiltration membrane organic pollutant filtering device is characterized in that: the aperture of the filter screen arranged on the first choke shell (2001) is larger than that of the nanofiltration membrane filter piece (7), and the filter screen is used for carrying out graded filtration on sewage.
7. The nanofiltration membrane organic pollutant filtering device with the hierarchical filtering function according to claim 1, wherein the nanofiltration membrane organic pollutant filtering device is characterized in that: still including clearance mechanism (21), clearance mechanism (21) set up in filtering shell (2), clearance mechanism (21) are including second motor (2101), second motor (2101) fixedly connected with is in filtering shell (2), rotation axis fixedly connected with second gear (2102) of second motor (2101), filtering shell (2) rotate and are connected with rotation casing (2103), filter tube (6) and back flush pipeline (8) all rotate with rotation casing (2103) and are connected, rotation casing (2103) fixedly connected with second toothed ring (2104), rotation casing (2103) fixedly connected with circumference evenly distributed's spoiler (2105), circumference evenly distributed's spoiler (2105) fixedly connected with rotation ring (2107), rotation ring (2107) rotate with filter tube (6).
8. The nanofiltration membrane organic pollutant filtering device with the hierarchical filtering function according to claim 7, wherein the nanofiltration membrane organic pollutant filtering device is characterized in that: the spoiler (2105) is fixedly connected with a cleaning nozzle (2106) which is uniformly distributed, and a nozzle of the cleaning nozzle (2106) faces the nanofiltration membrane filtering piece (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310653760.1A CN116621243B (en) | 2023-06-05 | 2023-06-05 | Nanofiltration membrane organic pollutant filtering device with hierarchical filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310653760.1A CN116621243B (en) | 2023-06-05 | 2023-06-05 | Nanofiltration membrane organic pollutant filtering device with hierarchical filtering function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116621243A CN116621243A (en) | 2023-08-22 |
| CN116621243B true CN116621243B (en) | 2024-01-30 |
Family
ID=87621110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310653760.1A Active CN116621243B (en) | 2023-06-05 | 2023-06-05 | Nanofiltration membrane organic pollutant filtering device with hierarchical filtering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116621243B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117326660A (en) * | 2023-11-24 | 2024-01-02 | 爱德士制鞋(枣庄)有限责任公司 | Shoe factory sewage treatment equipment with pretreatment |
| CN117282713B (en) * | 2023-11-24 | 2024-02-09 | 滨州市骏达再生源环保纤维有限公司 | Impurity removal cleaning device for cellulose production |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1186774A (en) * | 1966-05-25 | 1970-04-02 | Hydromation Engineering Compan | Improvements in and relating to Filters and Filtering |
| GB1328675A (en) * | 1970-10-03 | 1973-08-30 | Rostock Dieselmotoren | Switch assembly for filters especially for alternating filters |
| GB8414769D0 (en) * | 1984-06-09 | 1984-07-11 | Klimatank Holdings Ltd | Filter apparatus |
| US5013461A (en) * | 1987-09-18 | 1991-05-07 | Mordeki Drori | Regeneration method of filter device having filter aid material and piston apparatus |
| CN106237683A (en) * | 2016-08-23 | 2016-12-21 | 张萍 | A kind of defecator with efficient backwashing function for air water machine |
| CN206126991U (en) * | 2016-08-29 | 2017-04-26 | 山东胜伟园林科技有限公司 | Saline alkali land drainage filtration purification filter core |
| CN207468602U (en) * | 2016-08-24 | 2018-06-08 | 宁波乐惠国际工程装备股份有限公司 | A kind of filtration system with recoiling device |
| CN208553319U (en) * | 2018-06-20 | 2019-03-01 | 天津志和博容环保科技有限公司 | A kind of waste water filter device |
| CN109999668A (en) * | 2019-04-04 | 2019-07-12 | 北京朗新明环保科技有限公司 | A kind of ultrafiltration control system |
| CN115400597A (en) * | 2022-09-30 | 2022-11-29 | 江苏诺莱智慧水务装备有限公司 | Ultrafiltration membrane filtering device for drinking water treatment |
| CN115417474A (en) * | 2022-11-07 | 2022-12-02 | 泰州禾益新材料科技有限公司 | Wastewater treatment device with function of reducing deformation amount of filter membrane |
| CN218653888U (en) * | 2022-09-06 | 2023-03-21 | 江苏洁瑞特膜技术有限公司 | External pressure tubular micro-filtration membrane |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130026111A1 (en) * | 2011-05-23 | 2013-01-31 | Odis Irrigation Equipment Ltd. | Filtering system with backwash capabilities |
| US20220212129A1 (en) * | 2019-05-15 | 2022-07-07 | Nordson Corporation | Fluid Filtering System With Backflush Valve And Methods Of Operating The Same |
-
2023
- 2023-06-05 CN CN202310653760.1A patent/CN116621243B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1186774A (en) * | 1966-05-25 | 1970-04-02 | Hydromation Engineering Compan | Improvements in and relating to Filters and Filtering |
| GB1328675A (en) * | 1970-10-03 | 1973-08-30 | Rostock Dieselmotoren | Switch assembly for filters especially for alternating filters |
| GB8414769D0 (en) * | 1984-06-09 | 1984-07-11 | Klimatank Holdings Ltd | Filter apparatus |
| US5013461A (en) * | 1987-09-18 | 1991-05-07 | Mordeki Drori | Regeneration method of filter device having filter aid material and piston apparatus |
| CN106237683A (en) * | 2016-08-23 | 2016-12-21 | 张萍 | A kind of defecator with efficient backwashing function for air water machine |
| CN207468602U (en) * | 2016-08-24 | 2018-06-08 | 宁波乐惠国际工程装备股份有限公司 | A kind of filtration system with recoiling device |
| CN206126991U (en) * | 2016-08-29 | 2017-04-26 | 山东胜伟园林科技有限公司 | Saline alkali land drainage filtration purification filter core |
| CN208553319U (en) * | 2018-06-20 | 2019-03-01 | 天津志和博容环保科技有限公司 | A kind of waste water filter device |
| CN109999668A (en) * | 2019-04-04 | 2019-07-12 | 北京朗新明环保科技有限公司 | A kind of ultrafiltration control system |
| CN218653888U (en) * | 2022-09-06 | 2023-03-21 | 江苏洁瑞特膜技术有限公司 | External pressure tubular micro-filtration membrane |
| CN115400597A (en) * | 2022-09-30 | 2022-11-29 | 江苏诺莱智慧水务装备有限公司 | Ultrafiltration membrane filtering device for drinking water treatment |
| CN115417474A (en) * | 2022-11-07 | 2022-12-02 | 泰州禾益新材料科技有限公司 | Wastewater treatment device with function of reducing deformation amount of filter membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116621243A (en) | 2023-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116621243B (en) | Nanofiltration membrane organic pollutant filtering device with hierarchical filtering function | |
| EP1110591B1 (en) | Self-cleaning filter | |
| CN114984640B (en) | Mining back-washing anti-blocking filtering equipment | |
| US20160310876A1 (en) | Filtration system and filter assembly associated therewith | |
| CN110559721B (en) | Coal gasification black water filter and filtering method | |
| CN102940986A (en) | Vertical self-cleaning filter and self-cleaning method | |
| CN1843558B (en) | Backwash filter | |
| JP2012157799A (en) | Backwashing strainer | |
| CN115738475A (en) | Grinding fluid filtering and purifying device, three-phase separation system and cleaning structure | |
| CN112807791A (en) | Sewage treatment is with integrative equipment of filtration, dehydration | |
| CN112156539A (en) | Filter material layer capable of elastically stretching and retracting and filter device thereof | |
| CN116966661A (en) | Environment-friendly filter equipment for hydraulic engineering | |
| CN116943305A (en) | Filter-pressing self-cleaning filtering method, device and storage medium | |
| CN116510371A (en) | High-efficient filter equipment of waste water sewage debris | |
| JP4521222B2 (en) | Classification device, method | |
| CN215387965U (en) | A abandon a class filter equipment for rainwater is collected | |
| CN113877268B (en) | Sewage treatment filtering component | |
| CN114307307B (en) | Water purification filter and cleaning auxiliary device for water purification filter | |
| CN113304534B (en) | Industrial sewage filters discharging equipment for intelligent manufacturing | |
| CN211585525U (en) | Belt type mud-water filter press | |
| CN115300971A (en) | Filter device for preparing breath freshener | |
| CN114604985A (en) | Self-cleaning water purification equipment and intelligent cleaning method thereof | |
| CN107720847B (en) | Sewage treatment equipment | |
| CN108144347B (en) | Method for rapidly treating sewage | |
| US5893973A (en) | High efficiency backflush system for a filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |