CN116196763A - Tubular dynamic membrane and sewage treatment system - Google Patents
Tubular dynamic membrane and sewage treatment system Download PDFInfo
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- CN116196763A CN116196763A CN202310328825.5A CN202310328825A CN116196763A CN 116196763 A CN116196763 A CN 116196763A CN 202310328825 A CN202310328825 A CN 202310328825A CN 116196763 A CN116196763 A CN 116196763A
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- 239000010865 sewage Substances 0.000 title claims abstract description 165
- 239000012528 membrane Substances 0.000 title claims abstract description 127
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000007667 floating Methods 0.000 claims abstract description 43
- 238000002347 injection Methods 0.000 claims abstract description 40
- 239000007924 injection Substances 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 18
- 238000010009 beating Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 24
- 230000008569 process Effects 0.000 abstract description 24
- 238000000746 purification Methods 0.000 abstract description 11
- 230000001174 ascending effect Effects 0.000 abstract 3
- 239000010408 film Substances 0.000 description 31
- 239000010409 thin film Substances 0.000 description 30
- 230000000630 rising effect Effects 0.000 description 7
- 108010066057 cabin-1 Proteins 0.000 description 5
- 239000010802 sludge Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention belongs to the technical field of sewage treatment, and particularly provides a tubular dynamic membrane and a sewage treatment system. The tubular dynamic membrane comprises a treatment cabin, a top plate, a bottom plate, a membrane component and a floating body component, wherein the top plate is fixed at the top of an inner cavity of the treatment cabin, a sewage discharge cavity is formed between the top plate and the top of the inner cavity of the treatment cabin, the bottom plate is fixed at the bottom of the inner cavity of the treatment cabin, a sewage inlet injection cavity is formed between the bottom plate and the bottom of the inner cavity of the treatment cabin, the floating body component descends and resets due to the descending of the clean water level in a clean water chamber, at the moment, a steel wire can be dragged upwards due to the descending of the floating body component, the lifting pipe can ascend reversely, and in the ascending process, the chamfer at the top end is used for ascending along the inner wall of the pipe cavity of the thin-wall membrane pipe, and impurities attached to the inner wall of the thin-wall membrane pipe are cleaned again in the ascending process, so that the pipe cavity of the thin-wall membrane pipe can be cleaned before and after sewage purification.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a tubular dynamic membrane and a sewage treatment system.
Background
Dynamic membranes, which may also be referred to as secondary membranes, refer to new membranes formed by precoating or activated sludge on the surface of microfiltration, ultrafiltration or large pore support. The dynamic membrane can slow down the blocking of the micro-filtration membrane and the ultra-filtration membrane surface and the membrane pollution, or improve the interception capability of the macroporous support. The Chinese patent with application number 201010123810.8 discloses a multi-pipe internal pressure type mechanical circulation forced cross-flow solid-liquid separation dynamic membrane device, which discloses a plurality of pipe-shaped internal pressure type supporting bodies, wherein each branch pipe-shaped internal pressure type supporting body at least comprises a porous thin-wall pipe which is used for forming a dynamic membrane on the inner wall of the supporting body and treating water supply or sewage, and the porous thin-wall pipe is a large-aperture net; the upper and lower hole plates are used for fixing the plurality of tubular internal pressure type supporting bodies. After the dynamic membrane is applied to a shell (equivalent to the purification cabin of the invention), gas is required to be reversely blown into the dynamic membrane device from the water inlets in a back blowing mode, and a plurality of dynamic membranes are required to be arranged in practice, so that a large number of water inlets are required to be arranged on the shell, and a plurality of back blowing pipes are required to be connected to each water inlet in back blowing, so that more pipelines are caused and the connection is complicated. Secondly, only through the blowback mode, gas is difficult to comprehensively act on each region in each porous thin-wall tube of dynamic membrane device, and the impurity clearance of adhering to on the pipe wall is incomplete during the filtration, and cleaning efficiency is lower.
Disclosure of Invention
The invention aims to solve the technical problems that impurities intercepted on the inner wall of the porous thin-wall pipe are thoroughly cleaned by arranging a hanging pipe in the porous thin-wall pipe and adopting a floating body movement mode, so that the cleaning efficiency is improved.
The technical scheme of the invention is that the tubular dynamic membrane comprises a processing cabin, a top plate, a bottom plate, a membrane component and a floating body component, wherein the top plate is fixed at the top of an inner cavity of the processing cabin, a sewage discharge cavity is formed between the top plate and the top of the inner cavity of the processing cabin, and the bottom plate is fixed at the bottom of the inner cavity of the processing cabin, and a sewage inlet injection cavity is formed between the bottom plate and the bottom of the inner cavity of the processing cabin;
the membrane assembly comprises a membrane thin-wall pipe, a supporting body and a cleaning assembly, wherein the top end of the membrane thin-wall pipe upwards penetrates through a top plate and enters a sewage discharge cavity, the bottom end of the membrane thin-wall pipe downwards penetrates through a bottom plate and enters a sewage injection cavity, the supporting body is in a plurality of positions, the supporting body is sequentially fixed on the inner wall of the membrane thin-wall pipe from top to bottom, the cleaning assembly is sleeved in the membrane thin-wall pipe, a water purifying chamber in the treatment cabin is formed between the top plate and the bottom plate, the floating body assembly is positioned in the water purifying chamber, the top end of the floating body assembly is connected with a steel wire, the steel wire upwards penetrates into the sewage discharge cavity and penetrates into the top end of the cleaning assembly from the top end of the membrane thin-wall pipe, and when the floating body assembly moves in a fluctuation mode in the water purifying chamber, the floating body assembly can lift along the inner cavity of the membrane thin-wall pipe through the steel wire;
the cleaning assembly comprises a hanging pipe and a beating structure, wherein the hanging pipe is in sliding fit with the wall surface of the inner cavity of the thin-wall film pipe, the beating structure is connected to the bottom end of the hanging pipe, and when the cleaning assembly ascends and descends along the inner cavity of the thin-wall film pipe, synchronous beating action is carried out on the thin-wall film pipe through the beating structure.
In one embodiment, the thin-walled tube is made of a fine-meshed nylon mesh, a polyethylene mesh, a polypropylene mesh or a non-woven fabric.
In one embodiment, a sewage discharge pipe communicated with the sewage discharge cavity is arranged at the side part of the top end of the treatment cabin, a sewage injection pipe communicated with the sewage inlet cavity is arranged at the side part of the bottom end of the treatment cabin, the bottom end of the thin-wall membrane pipe is sequentially communicated with the sewage inlet cavity and the sewage injection pipe, a cover plate is arranged at the top end of the thin-wall membrane pipe, a water discharge hole with the diameter smaller than the diameter of the pipe cavity of the thin-wall membrane pipe is formed in the middle of the cover plate, and the water discharge hole is communicated with the sewage discharge cavity.
In one embodiment, the hammering structure comprises a spring and a falling block, wherein the top end of the spring is connected to the bottom of the hanging pipe, the bottom end of the spring vertically extends downwards into the thin-wall film pipe, the falling block is fixed at the bottom end of the spring and contacts with the wall surface of the pipe cavity of the thin-wall film pipe, the supporting body is a rubber ring, and the supporting body protrudes on the wall surface of the pipe cavity of the thin-wall film pipe and corresponds to the path of displacement of the falling block when the falling block ascends and descends along with the hanging pipe.
In one embodiment, the top end of the hanging tube is provided with a chamfer so that a slope is formed between the top end of the hanging tube and the thin-walled tube.
In one embodiment, the top plate is provided with a plurality of top plug connectors, the bottom plate is provided with a plurality of bottom plug connectors opposite to the top plug connectors, rubber rings are connected in the top plug connectors and in the bottom plug connectors, the top ends of the thin-wall membrane tubes penetrate into the sewage discharge cavity through the rubber rings at the top, and the bottom ends of the thin-wall membrane tubes penetrate into the sewage injection cavity through the rubber rings at the bottom.
In one embodiment, a pressure relief pipe is connected to the bottom plate, one end of the pressure relief pipe is connected to the middle of the bottom plate and is communicated with the water purifying chamber, the other end of the pressure relief pipe penetrates out of the treatment cabin along the sewage inlet cavity, and a valve positioned outside the treatment cabin is arranged on a pipeline of the pressure relief pipe.
In one embodiment, the top surface of the top plate is fixed with a guide sleeve extending into the sewage discharge cavity, the floating body assembly comprises a metal cover and a floating body, the opening of the metal cover faces downwards, the floating body is fixed in the metal cover, the top surface of the metal cover faces the guide sleeve, a steel wire penetrates into the guide sleeve, one end of the steel wire is connected with the metal cover, and the other end of the steel wire upwards enters the sewage discharge cavity and downwards bends, then enters the thin-wall film tube through the water discharge hole and is connected with the hanging tube.
The invention also provides a sewage treatment system, which comprises the tubular dynamic membrane, a water pump, a water tank and an aerator, wherein the water pump is positioned near the treatment cabin and connected with the sewage injection pipe through a pipeline, the water tank is positioned near the treatment cabin and connected with the sewage discharge pipe through a pipeline, the aerator is fixed in the sewage inlet injection cavity, and the water inlet end of the water pump is connected with the water tank.
The beneficial effects are that: a hanging pipe is arranged in the membrane thin-wall pipe, a floating body is arranged in the purification cabin, sewage can continuously rise in the sewage inlet injection cavity when entering the sewage inlet injection cavity, the membrane thin-wall pipe of each membrane component is filled in the rising process, the cover plate at the top end of the membrane thin-wall pipe can slow down the speed of the sewage entering the sewage discharge cavity, the dead time of the sewage in the membrane thin-wall pipe is prolonged, the purification efficiency is improved, the steel wire is enabled to release downwards in the membrane thin-wall pipe when rising, the hanging pipe descends, the chamfer at the bottom end is used for adhering to the inner wall of the pipe cavity of the membrane thin-wall pipe in the descending process of the hanging pipe, and the impurities which are attached to the inner wall of the membrane thin-wall pipe and remain in the last purification use are cleaned downwards in the descending process, the hanging pipe is used for beating the falling block and the supporting body to shake the membrane thin-wall pipe in the descending process, impurities are vibrated to fall into the sewage injection cavity in the shaking process, when sewage is injected into the membrane thin-wall pipe from the sewage injection cavity again, the impurities falling into the sewage during cleaning are sent into the membrane thin-wall pipe again, the impurities are basically diluted in the sewage again, the impurities are sludge, the diluted impurities are purified again through the membrane thin-wall pipe, purified clear water enters the water purifying chamber again, the sewage enters the sewage discharging cavity, meanwhile, continuously-input sewage is attached to the pipe cavity wall of the membrane thin-wall pipe, dynamic membranes are gradually formed on the inner wall, and the sewage is finally purified through the circulation mode. After a period of time, the valve is opened, clean water in the clean water chamber can be thoroughly drained, the floating body component is rapidly lowered due to the lowering of the water level of the clean water, the floating body component is lowered and reset due to the lowering of the water level of the clean water in the clean water chamber, the steel wire is pulled upwards due to the lowering of the floating body component, the lifting pipe is reversely lifted, the chamfer at the top is utilized to be attached to the inner wall of the pipe cavity of the thin-wall film pipe in the lifting process, impurities attached to the inner wall of the thin-wall film pipe are cleaned again in the lifting process, and therefore the pipe cavity of the thin-wall film pipe can be cleaned before and after sewage purification.
Drawings
FIG. 1 is a schematic view of a tubular dynamic membrane module according to an embodiment of the present invention in use in a process chamber;
FIG. 2 is a schematic view of a tubular dynamic membrane according to an embodiment of the present invention, which is drawn from FIG. 1 and is cut away;
FIG. 3 is a schematic illustration of a tubular dynamic membrane provided in an embodiment of the present invention after removal from a process chamber while only the process chamber remains;
FIG. 4 is a schematic view showing a tubular dynamic membrane provided in an embodiment of the present invention in an enlarged partial view with only the membrane module remaining after removal from the process chamber;
fig. 5 is a schematic diagram of a tubular dynamic membrane according to an embodiment of the present invention applied to a sewage treatment system.
In the figure: 1. a process chamber; 2. a top plate; 21. a top plug-in port; 22. guide sleeve; 3. a bottom plate; 31. a bottom plug-in port; 32. a pressure relief tube; 4. a membrane module; 41. a thin-walled tube of film; 412. a cover plate; 413. a drain hole; 42. a support body; 43. cleaning the assembly; 431. a hanging pipe; 432. beating structure; 433. a spring; 434. a falling block; 435. chamfering; 5. a float assembly; 51. a metal cover; 52. a floating body; 6. a sewage discharge chamber; 61. a sewage discharge pipe; 7. sewage is filled into the injection cavity; 71. a sewage injection pipe; 8. a water purifying chamber; 9. a rubber ring; 10. a valve; 11. a steel wire; 12. a water pump; 13. a water tank; 14. an aerator.
Detailed Description
The foregoing and other embodiments and advantages of the invention will be apparent from the following, more complete, description of the invention, taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention.
In one embodiment, as shown in fig. 1-5, a tubular dynamic membrane and sewage treatment system provided in this embodiment includes a treatment chamber 1, a top plate 2, a bottom plate 3, a membrane assembly 4 and a floating body assembly 5, wherein the top plate 2 is fixed on the top of the inner cavity of the treatment chamber 1, a sewage discharge chamber 6 is formed between the top plate and the top of the inner cavity of the treatment chamber 1, and the bottom plate 3 is fixed on the bottom of the inner cavity of the treatment chamber 1, and a sewage inlet injection chamber 7 is formed between the bottom plate and the bottom of the inner cavity of the treatment chamber 1;
the membrane component 4 comprises a membrane thin-wall pipe 41, a supporting body 42 and a cleaning component 43, wherein the top end of the membrane thin-wall pipe 41 upwards penetrates through the top plate 2 and enters the sewage discharge cavity 6, the bottom end of the membrane thin-wall pipe 41 downwards penetrates through the bottom plate 3 and enters the sewage injection cavity 7, the supporting body 42 is a plurality of parts, the supporting bodies 42 are sequentially fixed on the inner wall of the membrane thin-wall pipe 41 from top to bottom, the cleaning component 43 is sleeved in the membrane thin-wall pipe 41, a water purifying chamber 8 positioned in the treatment cabin 1 is formed between the top plate 2 and the bottom plate 3, the floating body component 5 is positioned in the water purifying chamber 8, the top end of the floating body component 5 is connected with a steel wire 11, the steel wire 11 upwards penetrates into the sewage discharge cavity 6 and penetrates into the top end of the cleaning component 43 from the top end, and when the floating body component 5 moves up and down in the water purifying chamber 8, the floating body component 5 can lift along the inner cavity of the membrane thin-wall pipe 41 through the steel wire 11; the thin-wall film tube 41 can be made of nylon net, polyethylene net, polypropylene net or non-woven fabric.
The cleaning component 43 comprises a hanging pipe 431 which is in sliding fit with the wall surface of the inner cavity of the thin-wall film pipe 41 and a hammering structure 432 which is connected to the bottom end of the hanging pipe 431, and when the cleaning component 43 ascends and descends along the inner cavity of the thin-wall film pipe 41, synchronous hammering action is carried out on the thin-wall film pipe 41 through the hammering structure 432;
the beating structure 432 comprises a spring 433 and a falling block 434, wherein the top end of the spring 433 is connected to the bottom of the hanging pipe 431, the bottom end of the spring 433 vertically extends downwards into the thin-wall membrane pipe 41, the falling block 434 is fixed at the bottom end of the spring 433 and contacts with the wall surface of the pipe cavity of the thin-wall membrane pipe 41, the supporting body 42 is a rubber ring, and the supporting body 42 protrudes on the wall surface of the pipe cavity of the thin-wall membrane pipe 41 and corresponds to a displacement path when the falling block 434 ascends and descends along with the hanging pipe 431.
In this embodiment, when sewage is filled into the sewage filling cavity 7, the water level will rise continuously and will rise along all the thin film wall pipes 41, sewage and fine particulate matters will adhere to the pipe walls of the thin film wall pipes 41, dynamic films will be formed gradually, sewage is filtered by the dynamic films and then discharged into the clean water chamber 8 through the pipe walls of the thin film wall pipes 41, and as the inner cavity of the clean water chamber 8 rises gradually, when rising to a higher water level, the clean water is discharged outwards through the clean water discharge pipe (the pipe opposite to the sewage discharge pipe 61 in the figure), the clean water will provide buoyancy to the floating body assembly 5 while rising in the clean water chamber 8, so that the floating body assembly 5 rises, the steel wire 11 connected to the top end of the floating body assembly 5 will be released downwards in the thin film wall pipes 41, and accordingly the hanging pipe 431 connected to the bottom end of the steel wire 11 falls downwards, and as the hanging pipe 431 is in sliding fit in the pipe cavity of the thin film wall pipes 41, impurities adhered to the inner wall of the thin film wall pipes 41 will be cleaned downwards in the descending process. Since sewage is continuously provided to the thin-walled membrane tube 41, and clean water is continuously provided to the clean water chamber 8 after the sewage is purified by the thin-walled membrane tube 41, the clean water in the clean water chamber 8 is always kept at the same water level, so that the hanging tube 431 is always positioned at the bottom of the tube cavity of the thin-walled membrane tube 41, that is, the hanging tube 431 stops moving after scraping the inner wall of the tube cavity of the thin-walled membrane tube 41 once. When the clean water in the clean water chamber 8 is completely discharged, the water level gradually drops, the floating body assembly 5 gradually drops along with the gradual drop of the water level, the hanging pipe 431 is pulled upwards along the thin film wall pipe 41 through the steel wire 11 when the floating body assembly 5 drops, and the hanging pipe 431 can clean impurities intercepted on the pipe cavity wall of the thin film wall pipe 41 after being purified in the process of pulling upwards. Namely, the inner wall of the tube cavity of the thin-wall membrane tube 41 can be cleaned once during and after sewage purification.
In this embodiment, when the hanging pipe 431 descends along the thin film pipe 41 to clean the impurities adhering to the wall of the pipe cavity, the hanging pipe 431 descends along the spring 433, and when the hanging pipe 433 descends along the falling block 434 to contact each support 42, the falling block 434 sequentially contacts the supports 42 to bend the spring 433, and at the same time, the falling block 434 frequently beats the thin film pipe 41 along with the bending of the spring 433 to vibrate the thin film pipe 41, so that the scraped impurities fall into the sewage inlet injection cavity 7 through the pipe cavity of the hanging pipe 431, and the falling block 434 has a ball head structure, not only the beating function, but also the dead weight of the hanging pipe 431 can be increased, and when the floating body assembly 5 ascends, the dead weight of the hanging pipe 431 can be satisfied, and the impurities on the inner wall of the thin film pipe 41 can be cleaned along the descending side of the inner wall of the pipe cavity of the thin film pipe 41 smoothly.
In this embodiment, since the hanging pipe 431 has a lumen structure, impurities are cleaned from the lumen inner wall of the thin film tube 41, and then fall into the sewage inlet chamber 7 at the bottom to be mixed with sewage again, and since sewage is continuously supplied to the sewage inlet chamber 7 from the outside, the impurities mixed again into the sewage are sent again into the thin film tube 41, so that the impurities are substantially diluted again in the sewage by sewage, the impurities are mostly sludge, the diluted impurities are purified again through the thin film tube 41, the purified clean water enters the clean water chamber 8 again, and the sewage enters the sewage discharge chamber 6.
The side of the top end of the treatment chamber 1 is provided with a sewage discharge pipe 61 communicated with the sewage discharge cavity 6, sewage is discharged outwards through the sewage discharge pipe 61 and enters a third party sewage pool or a sewage tank, then the third party water pump is used for injecting the sewage into the sewage injection cavity 7 through a sewage injection pipe 71, and the above-mentioned purification process is repeated by using a thin-wall film pipe 41 until the sewage is thoroughly purified. Therefore, a sewage discharge pipe 61 communicating with the sewage discharge chamber 6 is provided at the top side of the treatment chamber 1, a sewage injection pipe 71 communicating with the sewage inlet chamber 7 is provided at the bottom side of the treatment chamber 1, and the bottom end of the thin-walled membrane pipe 41 is in turn communicating with the sewage inlet chamber 7 and the sewage injection pipe 71.
The top end of the thin-wall film tube 41 is provided with a cover plate 412, the middle part of the cover plate 412 is provided with a drain hole 413 with the diameter smaller than the diameter of the tube cavity of the thin-wall film tube 41, the drain hole 413 is communicated with the sewage discharge cavity 6, and when part of sewage entering the thin-wall film tube 41 is purified by the thin-wall film tube 41 and then permeates into the water purification chamber 8, part of sewage still passes through the drain hole 413 upwards to enter the sewage discharge cavity 6 and is finally discharged into a water tank or a sewage pool of a third party through the sewage discharge tube 61. The setting of apron 412 for the top of membrane thin wall pipe 41 has formed a structure that blocks, and when sewage got into in the membrane thin wall pipe 41, the apron 412 at top can slow down the direct discharge speed of sewage to sewage discharge chamber 6 in, can make the settling time of sewage in membrane thin wall pipe 41 become long from this, just can make the purifying time of sewage in membrane thin wall pipe 41 become long, simultaneously along with the time that the tiny particulate matter in the sewage gets into the membrane thin wall pipe 41 gradually forms dynamic membrane on the lumen wall of membrane thin wall pipe 41 becomes long, so the purifying structure of membrane thin wall pipe 41 is more reasonable.
In one embodiment, the top end of the hanging pipe 431 is provided with a chamfer 435, and the bottom end of the top end of the hanging pipe 431 is also provided with a chamfer 435, so that a slope is formed between the top end and the bottom end of the hanging pipe 431 and the thin-wall film pipe 41, when the hanging pipe 431 ascends, impurities on the inner wall of the pipe cavity of the thin-wall film pipe 41 are cleaned downwards by the chamfer 435 on the top end, and when the hanging pipe 431 descends, impurities on the inner wall of the pipe cavity of the thin-wall film pipe 41 are cleaned downwards by the chamfer 435 on the bottom end.
In another embodiment, a plurality of top plug-in connectors 21 are formed on the top plate 2, a plurality of bottom plug-in connectors 31 opposite to the top plug-in connectors 21 are formed on the bottom plate 3, rubber rings 9 are connected in the top plug-in connectors 21 and the bottom plug-in connectors 31, the top ends of the thin film tubes 41 penetrate into the sewage discharge cavity 6 through the rubber rings 9 at the top, and the bottom ends of the thin film tubes 41 penetrate into the sewage inlet cavity 7 through the rubber rings 9 at the bottom.
In the present embodiment, since the rubber rings 9 are provided on the top plate 2 and the bottom plate 3, and the two rubber rings 9 are provided at the two ends of the thin film tube 41, it is known that the two ends of the thin film tube 41 can elastically move, and when the hanging tube 431 moves up and down along the lumen of the thin film tube 41, the thin film tube 41 vibrates by the beating action of the falling block 434 and the supporting body 42, and the vibration effect of the thin film tube 41 can be greatly improved by the elastic and flexible action of the rubber rings 9, and the downward vibration effect of the scraped impurity is more obvious.
In one embodiment, a pressure relief pipe 32 is connected to the bottom plate 3, one end of the pressure relief pipe 32 is connected to the middle part of the bottom plate 3 and is communicated with the clean water chamber 8, the other end of the pressure relief pipe 32 penetrates out of the treatment cabin 1 along the sewage inlet injection cavity 7, a valve 10 positioned outside the treatment cabin 1 is arranged on a pipeline of the pressure relief pipe 32, clean water in the clean water chamber 8 can be thoroughly drained when the valve 10 is opened, and the floating body assembly 5 gradually descends due to the descending of the water level of the clean water.
The top surface of the top plate 2 is fixedly provided with a guide sleeve 22 extending into the sewage discharge cavity 6, the floating body assembly 5 comprises a metal cover 51 and a floating body 52, the metal cover 51 is downwards opened, the floating body 52 is fixed in the metal cover 51, the top surface of the metal cover 51 faces the guide sleeve 22, the steel wire 11 penetrates into the guide sleeve 22, one end of the steel wire 11 is connected with the metal cover 51, and the other end of the steel wire 11 upwards enters the sewage discharge cavity 6 and downwards bends, then enters the membrane thin-wall tube 41 through the drain hole 413 and is connected with the hanging tube 431. For example, the tubular dynamic membrane is a tubular dynamic membrane module.
The invention also provides a sewage treatment system, which comprises the tubular dynamic membrane, a water pump 12 positioned near the treatment cabin 1 and connected with a sewage injection pipe 71 through a pipeline, a water tank 13 positioned near the treatment cabin 1 and connected with a sewage discharge pipe 61 through a pipeline, and an aerator 14 fixed in the sewage injection cavity 7, wherein the water inlet end of the water pump 12 is connected with the water tank 13.
Working principle: the water pump 12 pumps the sewage in the water tank 13 into the sewage injection pipe 71, the sewage injection pipe 71 sends the sewage into the sewage injection cavity 7, the top plate 2 is provided with a plurality of top insertion ports 21, the bottom plate 3 is provided with a plurality of bottom insertion ports 31, thus a plurality of membrane modules 4 with the same structure are arranged between the top plate 2 and the bottom plate 3 in the same installation mode, when the sewage enters the sewage injection cavity 7, the sewage is continuously lifted up in the sewage injection cavity 7, the membrane thin-wall pipes 41 of each membrane module 4 are filled in the lifting process, the cover plate 412 at the top end of the membrane thin-wall pipe 41 can slow down the speed of the sewage entering the sewage discharge cavity 6, the stagnation time of the sewage in the membrane thin-wall pipe 41 is prolonged, simultaneously the particle substances added together with the sewage can be attached to the cavity wall of the membrane thin-wall pipe 41, dynamic membranes are gradually formed on the inner wall, because the meshes of the membrane thin-wall pipe 41 are tiny, thus, sewage can permeate into the water purifying chamber 8 through the thin film tube 41 due to the action of water pressure, and is filtered by the mesh holes and dynamic film at the same time in the process of permeating into the water purifying chamber 8 to finish purifying, in the invention, besides the prior purifying principle, the water level in the water purifying chamber 8 is continuously raised, the floating body 52 is pushed to rise by the rising water level, the metal cover 51 is pushed to rise by the rising water level, the steel wire 11 releases the length downwards in the thin film tube 41 by rising the metal cover 51, the hanging tube 431 is lowered, the chamfer 435 at the bottom end is used for being adhered to the inner wall of the thin film tube 41 in the process of lowering the hanging tube 431, the impurities remained on the inner wall of the thin film tube 41 due to the last purifying use are cleaned downwards in the process of lowering, the hanging tube 431 is vibrated by beating action generated by the falling block 434 and the supporting body 42 in the process of lowering, and the impurities are vibrated and fall into the sewage inlet injection cavity 7 in the shaking process, the water level of the clean water obtained after the purification is kept stable in the clean water chamber 8, the redundant clean water is discharged outwards through a clean water discharge pipe with the top opposite to the sewage discharge pipe 61, the sewage which is not purified enters the sewage discharge cavity 6, the sewage is discharged again into the third-party water tank 13 through the sewage discharge pipe 61, and is pumped into the sewage inlet injection cavity 7 by the water pump 12 to be circularly purified, when the sewage is injected into the film thin-wall pipe 41 again through the sewage inlet injection cavity 7, the impurities falling into the sewage during the cleaning are sent into the film thin-wall pipe 41 again, so that the impurities are substantially secondarily diluted in the sewage, the impurities are mostly sludge, the diluted impurities are purified again through the film thin-wall pipe 41, the purified clean water enters the clean water chamber 8 again, the sewage enters the sewage discharge cavity 6, meanwhile, the continuously-supplied granular substances are adhered to the pipe cavity wall of the film thin-wall pipe 41, and dynamic film sewage is formed on the inner wall, and finally the sewage is purified in a gradual circulation mode. After a period of time, the valve 10 is opened, so that the clean water in the clean water chamber 8 can be thoroughly drained, the floating body component 5 is rapidly lowered due to the lowering of the water level of the clean water, the floating body component 5 is lowered and reset due to the lowering of the water level of the clean water chamber 8, the steel wire 11 is pulled upwards due to the lowering of the floating body component 5, the lifting pipe 431 is reversely lifted, the chamfer 435 on the top is used for being attached to the inner wall of the pipe cavity of the thin film pipe 41 in the lifting process, impurities attached to the inner wall of the thin film pipe 41 are cleaned again in the lifting process, and therefore the pipe cavity of the thin film pipe 41 can be cleaned before and after sewage purification.
The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present invention in detail. It should be understood that the foregoing is only illustrative of the present invention and is not intended to limit the scope of the present invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The tubular dynamic membrane is characterized by comprising a processing cabin (1), a top plate (2), a bottom plate (3), a membrane component (4) and a floating body component (5), wherein the top plate (2) is fixed at the top of an inner cavity of the processing cabin (1) and a sewage discharge cavity (6) is formed between the top plate and the top of the inner cavity of the processing cabin (1), and the bottom plate (3) is fixed at the bottom of the inner cavity of the processing cabin (1) and a sewage injection cavity (7) is formed between the bottom plate and the bottom of the inner cavity of the processing cabin (1); the membrane assembly (4) comprises a membrane thin-wall pipe (41), a supporting body (42) and a cleaning assembly (43), wherein the top end of the membrane thin-wall pipe (41) upwards penetrates through the top plate (2) and enters the sewage discharge cavity (6), the bottom end of the membrane thin-wall pipe (41) downwards penetrates through the bottom plate (3) and enters the sewage inlet cavity (7), the supporting body (42) is a plurality of parts, the supporting bodies (42) are sequentially fixed on the inner wall of the membrane thin-wall pipe (41) from top to bottom, the cleaning assembly (43) is sleeved in the membrane thin-wall pipe (41), a water purifying chamber (8) positioned in the treatment cabin (1) is formed between the top plate (2) and the bottom plate (3), the floating body assembly (5) is positioned in the water purifying chamber (8), the top end of the floating body assembly (5) is connected with a steel wire (11), the steel wire (11) upwards penetrates into the sewage discharge cavity (6) and penetrates into the top end of the membrane thin-wall pipe (41) from top end, and when the floating body assembly (5) in the water purifying chamber (8) is in a water purifying chamber (8), the water can be cleaned along the membrane thin-wall pipe (41) through the steel wire assembly (43); the cleaning component (43) comprises a hanging pipe (431) which is in sliding fit with the inner cavity wall surface of the thin-wall film pipe (41) and a beating structure (432) which is connected to the bottom end of the hanging pipe (431), and when the cleaning component (43) ascends and descends along the inner cavity of the thin-wall film pipe (41), synchronous beating action is carried out on the thin-wall film pipe (41) through the beating structure (432).
2. A tubular dynamic membrane according to claim 1, characterized in that the membrane thin-walled tube (41) is made of a fine-meshed nylon net, a polyethylene net, a polypropylene net or a non-woven fabric.
3. The tubular dynamic membrane according to claim 2, wherein a sewage discharge pipe (61) communicated with the sewage discharge cavity (6) is arranged at the side part of the top end of the treatment cabin (1), a sewage injection pipe (71) communicated with the sewage inlet injection cavity (7) is arranged at the side part of the bottom end of the treatment cabin (1), the bottom end of the membrane thin-wall pipe (41) is sequentially communicated with the sewage inlet injection cavity (7) and the sewage injection pipe (71), a cover plate (412) is arranged at the top end of the membrane thin-wall pipe (41), a drain hole (413) with the diameter smaller than the pipe cavity diameter of the membrane thin-wall pipe (41) is formed in the middle of the cover plate (412), and the drain hole (413) is communicated with the sewage discharge cavity (6).
4. A tubular dynamic membrane according to claim 3, characterized in that the hammering structure (432) comprises a spring (433) and a weight (434), the top end of the spring (433) is connected to the bottom of the hanging pipe (431), the bottom end of the spring (433) extends vertically downwards into the membrane thin-wall pipe (41), the weight (434) is fixed at the bottom end of the spring (433) and contacts on the wall surface of the membrane thin-wall pipe (41), the supporting body (42) is a rubber ring, and the supporting body (42) protrudes on the wall surface of the membrane thin-wall pipe (41) and corresponds to the displacement path of the weight (434) when the hanging pipe (431) is lifted.
5. The tubular dynamic membrane of claim 4, wherein a chamfer (435) is provided at the top end of the hanging tube (431) so that a slope is formed between the top end of the hanging tube (431) and the membrane thin-walled tube (41), and a chamfer (435) is provided at the bottom end of the hanging tube (431) so that a slope is formed between the bottom end of the hanging tube (431) and the membrane thin-walled tube (41).
6. The tubular dynamic membrane according to claim 5, wherein a plurality of top plug-in connectors (21) are formed in the top plate (2), a plurality of bottom plug-in connectors (31) opposite to the top plug-in connectors (21) are formed in the bottom plate (3), rubber rings (9) are connected in the top plug-in connectors (21) and in the bottom plug-in connectors (31), the top end of the membrane thin-wall tube (41) penetrates into the sewage discharge cavity (6) through the rubber ring (9) at the top, and the bottom end of the membrane thin-wall tube (41) penetrates into the sewage injection cavity (7) through the rubber ring (9) at the bottom.
7. The tubular dynamic membrane according to claim 6, wherein a pressure relief pipe (32) is connected to the bottom plate (3), one end of the pressure relief pipe (32) is connected to the middle part of the bottom plate (3) and is communicated with the water purifying chamber (8), the other end of the pressure relief pipe (32) penetrates out of the treatment chamber (1) along the sewage inlet cavity (7), and a valve (10) positioned outside the treatment chamber (1) is arranged on a pipeline of the pressure relief pipe (32).
8. The tubular dynamic membrane according to claim 7, wherein the top surface of the top plate (2) is fixed with a guide sleeve (22) extending into the sewage discharge cavity (6), the floating body assembly (5) comprises a metal cover (51) and a floating body (52), the metal cover (51) is downward opened, the floating body (52) is fixed in the metal cover (51), the top surface of the metal cover (51) faces the guide sleeve (22), the steel wire (11) penetrates into the guide sleeve (22), one end of the steel wire (11) is connected with the metal cover (51), and the other end of the steel wire (11) upwards enters the sewage discharge cavity (6) and downwards bends to enter the membrane thin-wall tube (41) through the drain hole (413) and is connected with the hanging tube (431).
9. A sewage treatment system comprising a tubular dynamic membrane according to any one of claims 1-8, characterized in that: the sewage treatment device further comprises a water pump (12) which is positioned near the treatment cabin (1) and is connected with the sewage injection pipe (71) through a pipeline, a water tank (13) which is positioned near the treatment cabin (1) and is connected with the sewage discharge pipe (61) through a pipeline, and an aerator (14) which is fixed in the sewage injection cavity (7), wherein the water inlet end of the water pump (12) is connected with the water tank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310328825.5A CN116196763B (en) | 2023-03-30 | Tubular dynamic membrane and sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310328825.5A CN116196763B (en) | 2023-03-30 | Tubular dynamic membrane and sewage treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116196763A true CN116196763A (en) | 2023-06-02 |
| CN116196763B CN116196763B (en) | 2024-05-14 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200338049Y1 (en) * | 2003-10-11 | 2004-01-13 | 김종대 | The Apparatus for processing at surface the textile |
| KR100667271B1 (en) * | 2006-03-03 | 2007-01-10 | 주식회사 포스코 | A cleaning system moving on electrode for an electric precipitator |
| CN101757854A (en) * | 2010-02-11 | 2010-06-30 | 曹达文 | Multi-pipe internal pressure mechanical circulation forced cross current solid-liquid separation dynamic membrane system and device thereof |
| JP2012242059A (en) * | 2011-05-24 | 2012-12-10 | Nippon Winton Kk | Method of cleaning air conditioning duct in vehicle |
| CN106766764A (en) * | 2016-12-27 | 2017-05-31 | 重庆市益丰生物肥有限公司 | A kind of compound fertilizer drying |
| CN211941693U (en) * | 2020-04-07 | 2020-11-17 | 泰华锦业建筑工程有限公司 | Epoxy resin water bath heating device |
| CN215559727U (en) * | 2021-08-17 | 2022-01-18 | 南京浦信环保科技有限公司 | MBR integration sewage treatment device with nitrogen and phosphorus removal function |
| US20220055930A1 (en) * | 2020-08-20 | 2022-02-24 | Chongqing University | Split type continuous operation micro-grid dynamic membrane bioreactor |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200338049Y1 (en) * | 2003-10-11 | 2004-01-13 | 김종대 | The Apparatus for processing at surface the textile |
| KR100667271B1 (en) * | 2006-03-03 | 2007-01-10 | 주식회사 포스코 | A cleaning system moving on electrode for an electric precipitator |
| CN101757854A (en) * | 2010-02-11 | 2010-06-30 | 曹达文 | Multi-pipe internal pressure mechanical circulation forced cross current solid-liquid separation dynamic membrane system and device thereof |
| JP2012242059A (en) * | 2011-05-24 | 2012-12-10 | Nippon Winton Kk | Method of cleaning air conditioning duct in vehicle |
| CN106766764A (en) * | 2016-12-27 | 2017-05-31 | 重庆市益丰生物肥有限公司 | A kind of compound fertilizer drying |
| CN211941693U (en) * | 2020-04-07 | 2020-11-17 | 泰华锦业建筑工程有限公司 | Epoxy resin water bath heating device |
| US20220055930A1 (en) * | 2020-08-20 | 2022-02-24 | Chongqing University | Split type continuous operation micro-grid dynamic membrane bioreactor |
| CN215559727U (en) * | 2021-08-17 | 2022-01-18 | 南京浦信环保科技有限公司 | MBR integration sewage treatment device with nitrogen and phosphorus removal function |
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