CN114436415B - Water treatment device for aquaculture - Google Patents
Water treatment device for aquaculture Download PDFInfo
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- CN114436415B CN114436415B CN202011217387.8A CN202011217387A CN114436415B CN 114436415 B CN114436415 B CN 114436415B CN 202011217387 A CN202011217387 A CN 202011217387A CN 114436415 B CN114436415 B CN 114436415B
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- roller
- pipe
- filter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 260
- 238000009360 aquaculture Methods 0.000 title claims abstract description 18
- 244000144974 aquaculture Species 0.000 title claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 59
- 239000012535 impurity Substances 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 238000005192 partition Methods 0.000 claims abstract description 30
- 239000010865 sewage Substances 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 4
- 239000013543 active substance Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
A water treatment device for aquaculture comprises a coarse filtration tank and a roller filtration device, wherein the coarse filtration tank is internally divided into a sewage disposal cavity, a separation cavity and a clear water cavity by a first partition plate and a second partition plate, a bubble generator is arranged in the separation cavity, a water inlet is formed in the surface of the front side of the separation cavity, and a clear water outlet is formed in the bottom of the clear water cavity; the roller filter device comprises a filter box body and a filter roller, wherein a water pipe and an impurity collecting pipe are respectively arranged in the filter roller in parallel along the axial direction; the water inlet end of the water pipe is communicated with the clear water outlet, and a water outlet opening is formed in the water pipe near the inclined lower side of the filtering roller; two ends of the impurity collecting pipe are movably connected with the side wall of the filtering box body, the impurity collecting pipe is arranged in the filtering roller and is close to the axis, and the impurity collecting pipe is arranged into a semicircular groove structure; the lower surface of the filtering box body is provided with a water outlet. The invention overcomes the defects of the prior art, saves energy, protects environment, does not need any other power, can continuously run around the clock, and saves electric power and manpower.
Description
Technical Field
The invention relates to the technical field of sewage treatment for aquaculture, in particular to a water treatment device for aquaculture.
Background
In recent years, aquaculture is developed towards intensive, high-density and high-yield aquaculture, and the density and yield of aquaculture are improved; however, at the same time, a large amount of wastewater generated by intensive culture also causes great pollution to the environment, and the natural ecological balance of the water environment is destroyed due to the large amount of residual baits, cultured biological metabolites, bacteria, organic pollutants and the like.
At present, a filter screen is generally adopted for filtering sewage generated by aquaculture, but in freshwater fish culture, partial residual baits and feces are dissolved in water to form protein, sugar and lipid colloid due to incomplete mechanical filtration, so that dissolved oxygen in water is consumed; and because the solid pollutant in the sewage after filtering can stay on the surface of the filter screen, the filter screen is blocked, so that the filter screen needs to be disassembled and cleaned after being used for a period of time, and when the filter screen is cleaned, a traditional flushing method is generally adopted, so that a large amount of water resources are wasted, the flushed sewage is not recycled, and the sewage is directly discharged to pollute the environment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the water treatment device for aquaculture, which overcomes the defects of the prior art, is energy-saving and environment-friendly, does not need any other power, can continuously operate in all weather, and saves electric power and manpower.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The utility model provides a water treatment facilities for aquaculture, includes straining case and cylinder filter equipment, straining case inner chamber fixed mounting has first division board and second division board, first division board and second division board divide into blowdown chamber, separation chamber and clear water chamber with straining case inner chamber, blowdown chamber and separation chamber are linked together through the upper end of first division board, clear water chamber is linked together through the second division board lower extreme with the separation chamber, the inner chamber bottom fixed mounting of separation chamber has bubble generator, the water inlet has been seted up to separation chamber front side surface, clear water chamber bottom is provided with clear water export;
the roller filtering device comprises a filtering box body and a filtering roller, the filtering roller is rotationally connected to the inner cavity of the filtering box body, and a water pipe and an impurity collecting pipe are respectively arranged in the filtering roller in parallel along the axial direction; the water inlet end of the water pipe penetrates through the side wall of the filtering box body and is communicated with the clear water outlet through a connecting water pipe, the water pipe is arranged above one side, deviating from the axis, of the filtering roller, and a water outlet opening is formed in the water pipe, close to the inclined lower side of the filtering roller; the two ends of the impurity collecting pipe respectively penetrate through the two side walls of the filtering box body and are movably connected with the side walls of the filtering box body, the impurity collecting pipe is arranged at the other side, close to the axis, in the filtering roller, and the impurity collecting pipe is in a semicircular groove structure; the lower surface of the filtering box body is provided with a water outlet.
Preferably, the upper end of the first partition plate is lower than the coarse filtration tank, the lower end of the second partition plate is provided with a communication port, and the clear water cavity is communicated with the separation cavity through the communication port.
Preferably, a baffle is fixedly installed in the clear water cavity, the baffle divides the clear water cavity into a sedimentation cavity and a water outlet cavity, the sedimentation cavity is communicated with the water outlet cavity through the upper part of the baffle, the clear water outlet is arranged at the bottom of the water outlet cavity, and the height of the baffle is the same as that of the first partition plate.
Preferably, a supporting bar is fixedly arranged on the side surface of the inner cavity of the separation cavity, a filter screen is placed on the supporting bar, and the water inlet is arranged above the filter screen.
Preferably, rolling bearings are installed on the surfaces of two sides of the inner cavity of the filter box body through bearing frames, the filter roller comprises a cylindrical filter screen and flange edges, the flange edges are fixedly installed at two ends of the cylindrical filter screen, and two groups of rolling bearings are respectively meshed with the side surfaces of the two flange edges.
Preferably, the water outlets are two, and the two water outlets are respectively communicated with the water inlet ends of the first water pumping pump and the second water pumping pump, the water outlet end of the second water pumping pump is communicated with one end of the connecting interface through a water pipe pipeline, the connecting interface is fixedly installed on the side surface of the coarse filtration tank, the other end of the connecting interface is connected with the water inlet end of the water spraying pipe, a plurality of water spraying guns are uniformly and fixedly installed on the outer surface of the water spraying pipe, the water spraying openings of the water spraying guns correspond to the inclined upper side surface of the filtering roller, and the water spraying opening direction of the water spraying guns is inclined downward direction.
Preferably, the outer surface of the filter roller is uniformly provided with a plurality of water receiving tanks along the outer circumferential direction, the water receiving tanks are of a semicircular tank structure, and two ends of each water receiving tank are respectively and fixedly arranged on the side surface between two flange edges.
Preferably, the water outlet opening is in a trapezoid opening structure, and the opening on one side of the water outlet opening, which is close to the water inlet end of the water pipe, is large, and the opening on one side of the water outlet opening, which is far away from the water inlet end of the water pipe, is small.
Preferably, a water pump is fixedly arranged on the connecting water pipe between the water pipe and the clear water outlet.
The invention provides a water treatment device for aquaculture. The beneficial effects are as follows: generating bubbles through a bubble generator at the bottom of the separation cavity, enabling surface active substances such as organic matters in sewage or hydrophobic micro-suspended matters to be adsorbed on the bubbles, floating up to the upper part of the separation cavity to form a foam layer, flowing into the sewage drainage cavity through the upper end of the first partition plate, discharging into the suspended matter collecting device through the sewage drainage outlet to perform centralized treatment, and enabling water below the separation cavity to enter the clear water cavity through the lower end of the second partition plate and be conveyed into the water pipe from the clear water outlet; the water flowing out from the strip-shaped opening on one side of the water pipe flows out and falls onto the cylindrical filter screen, the filter roller is driven to rotate on the longitudinal bearing by the impact of the return water fall, the water is driven to rotate by the water flow and simultaneously filtered out the clean water, the impurities which are not filtered out can be rotated to the position close to the round top point on the filter roller by the filter roller, and the impurities in the inner cavity of the filter roller fall off from the filter roller and fall into the impurity collecting pipe to be collected and then are discharged out of the system for centralized treatment under the action of gravity.
Drawings
In order to more clearly illustrate the invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the coarse filtration tank in the invention;
FIG. 3 is a schematic view of a drum filter device according to the present invention;
FIG. 4 is a schematic view of the structure of the filter cylinder of the present invention;
FIG. 5 is a schematic radial cross-section of a filter cylinder of the present invention;
FIG. 6 is a schematic view of the structure of the water pipe in the invention;
The reference numerals in the figures illustrate:
1. A coarse filtration tank; 2. a roller filter device; 3. a first partition plate; 4. a second partition plate; 5. a blow-down chamber; 6. a separation chamber; 7. a clear water cavity; 8. a water outlet opening; 9. a bubble generator; 10. a water inlet; 11. a clear water outlet; 12. connecting a water pipe; 13. a filter box; 14. a filter drum; 15. a water pipe; 16. an impurity collecting pipe; 17. a water outlet; 18. a communication port; 19. a baffle; 20. a support bar; 21. a filter screen; 22. a rolling bearing; 23. a cylindrical filter screen; 24. a flange edge; 25. a first water pump; 26. a second water pump; 27. a connection interface; 28. a water spray pipe; 29. a water spraying gun; 30. a water receiving tank; 31. and (3) a water pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
1-6, A water treatment device for aquaculture comprises a coarse filtration tank 1 and a roller filtration device 2, wherein a first partition plate 3 and a second partition plate 4 are fixedly arranged in the inner cavity of the coarse filtration tank 1, the first partition plate 3 and the second partition plate 4 divide the inner cavity of the coarse filtration tank 1 into a sewage disposal cavity 5, a separation cavity 6 and a clear water cavity 7, the sewage disposal cavity 5 is communicated with the separation cavity 6 through the upper end of the first partition plate 3, the clear water cavity 7 is communicated with the separation cavity 6 through a water outlet 8 at the lower end of the second partition plate 4, a bubble generator 9 is fixedly arranged at the bottom of the inner cavity of the separation cavity 6, a water inlet 10 is formed in the front side surface of the separation cavity 6, a clear water outlet 11 is formed in the bottom of the clear water cavity 7, in the embodiment, the upper end of the first partition plate 3 is lower than the height of the coarse filtration tank 1, a communication port 18 is formed in the lower end of the second partition plate 4, and the clear water cavity 7 is communicated with the separation cavity 6 through the communication port 18;
The roller filter device 2 comprises a filter box 13 and a filter roller 14, the filter roller 14 is rotatably connected to the inner cavity of the filter box 13, and a water pipe 15 and an impurity collecting pipe 16 are respectively arranged in the filter roller 14 in parallel along the axial direction; the water inlet end of the water pipe 15 passes through the side wall of the filter box body 13 and is communicated with the clear water outlet 11 through the connecting water pipe 12, the water pipe 15 is arranged above one side of the filter roller 14 deviating from the axis, and the water outlet opening 8 is formed on the obliquely lower side of the water pipe 15, which is close to the filter roller 14; the two ends of the impurity collecting pipe 16 respectively penetrate through the two side walls of the filtering box body 13 and are movably connected with the side walls of the filtering box body 13, the impurity collecting pipe 16 is arranged at the other side, close to the axis, of the filtering roller 14, and the impurity collecting pipe 16 is of a semicircular groove structure; the lower surface of the filter box 13 is provided with a water outlet 17.
Working principle: when the device is used, sewage generated by aquaculture enters the separation cavity 6 through the water inlet 10, bubbles are generated through the bubble generator 9 in the separation cavity 6, surface active substances such as organic matters in the sewage or hydrophobic micro-suspended matters are adsorbed on the bubbles and float upwards to the upper part of the separation cavity 6 to form a foam layer, then flow into the sewage drainage cavity 5 through the upper end of the first partition plate 3 and are led out for centralized treatment, and water after separating the organic matters below the separation cavity 6 enters the clear water cavity 7 through the communication port 18 at the lower end of the second partition plate 4 and is conveyed into the water through the clear water outlet 11 through the connecting water pipe 12; the impurity in the inner cavity of the filter drum 14 falls off from the filter drum 14 and falls into the impurity collecting pipe 16 to be collected through the gravity, when a certain amount of impurity is collected, the impurity collecting pipe 16 can be pulled out from the side wall of the filter box 13, the impurity collected in the impurity collecting pipe 16 is concentrated, and then the impurity collecting pipe 16 is inserted into the collecting pipe fixing hole.
In the second embodiment, as a further scheme of the first embodiment, a baffle 19 is fixedly installed in the clean water cavity 7, the baffle 19 divides the clean water cavity 7 into a precipitation cavity and a water outlet cavity, the precipitation cavity is communicated with the water outlet cavity through the upper part of the baffle 19, a clean water outlet 11 is arranged at the bottom of the water outlet cavity, and the height of the baffle 19 is the same as that of the first partition plate 3. After the water at the bottom of the separation chamber 6 enters the clear water chamber 7 through the communication port 18, sediment in the water can be further blocked in the sediment chamber through the baffle 19, and clear water enters the water outlet chamber from the upper end of the baffle 19 and is conveyed into the water pipe 15 from the clear water outlet 11.
In the third embodiment, as a further scheme of the first embodiment, a supporting bar 20 is fixedly installed on the side surface of the inner cavity of the separation cavity 6, a filter screen 21 is placed on the supporting bar 20, and the water inlet 10 is arranged above the filter screen 21. The filter screen 21 can be used for preliminarily filtering larger solid impurities in the sewage, so that the phenomenon that excessive solid impurities are deposited at the bottom of the separation cavity 6 to cause bottom blockage is avoided. And because the filter screen 21 is directly placed on the support bar 20, the filter screen 21 can be directly taken out for cleaning after being used, and the use is convenient and quick.
In the fourth embodiment, as a further solution of the first embodiment, rolling bearings 22 are installed on two side surfaces of the inner cavity of the filtering box 13 through bearing frames, the filtering roller 14 includes a cylindrical filtering net 23 and flange edges 24, the flange edges 24 are fixedly installed at two ends of the cylindrical filtering net 23, and two sets of rolling bearings 22 are respectively meshed with two side surfaces of the flange edges 24. In this embodiment, the rolling bearing 22 includes two sets of longitudinal bearings and a transverse bearing, the two sets of longitudinal bearings are respectively disposed under the symmetrical inclined positions of the flange 24, the rotation effect of the filter drum 14 can be ensured while the two sets of longitudinal bearings play a supporting role, and the transverse bearing and the two longitudinal bearings cooperate to limit the filter drum 14 so as to prevent the filter drum from shifting during use.
In a fifth embodiment, as a further solution of the first embodiment, two water outlets 17 are provided, and the two water outlets 17 are respectively connected with water inlet ends of the first water pump 25 and the second water pump 26, a water outlet end of the second water pump 26 is connected with one end of a connection interface 27 through a water pipe pipeline, the connection interface 27 is fixedly installed on a side surface of the coarse filtration tank 1, the other end of the connection interface 27 is connected with a water inlet end of a water spraying pipe 28, a plurality of water spraying guns 29 are uniformly and fixedly installed on an outer surface of the water spraying pipe 28, water spraying ports of the water spraying guns 29 correspond to an inclined upper side surface of the filtration drum 14, and a water spraying port direction of the water spraying gun 29 is an inclined lower direction.
In the use process, a part of filtered clean water can be conveyed into the water spraying pipe 28 through the water pipe through the second water pumping pump 26, water is sprayed and washed to the inclined upper side surface position outside the filter cylinder 14 through the plurality of water spraying guns 29 on the surface of the water spraying pipe 28, impurities adhered in the inner cavity of the filter cylinder 14 can be separated through the impact action of water flow, and meanwhile, the filter cylinder 14 can rotate faster through the action of the water spraying holes of the water spraying guns 29 on the inclined downward direction applied to the filter cylinder 14, so that the impurities on the inner side of the filter cylinder 14 can fall into the impurity collecting pipe 16. In this embodiment, through setting up the connection interface 27, both play the switching effect between spray pipe 28 and the water pipe pipeline, also can play the fixed action of support to spray pipe 28 simultaneously to the dismantlement maintenance clearance of spray pipe 28 is convenient.
In the sixth embodiment, as a further solution of the fifth embodiment, a plurality of water receiving grooves 30 are uniformly arranged on the outer surface of the filter cylinder 14 along the outer circumferential direction, the water receiving grooves 30 are in a semicircular groove structure, and two ends of each water receiving groove 30 are respectively and fixedly installed on the side surface between the two flange edges 24. The water receiving tank 30 is used for receiving the clean water sprayed from the water spraying gun 29, and the filter drum 14 can be driven to rotate better due to the gravity action of the clean water received in the water receiving tank 30.
In the seventh embodiment, as shown in fig. 6, as a further solution of the first embodiment, the water outlet opening 8 has a trapezoidal opening structure, and the opening of the water outlet opening 8 near the water inlet end of the water pipe 15 is large, and the opening of the water outlet opening far from the water inlet end of the water pipe 15 is small. Because the water flow of the water inlet end of the water pipe 15 is larger, the water flow is more balanced by arranging the trapezoid opening structure.
In the seventh embodiment, as a further aspect of the first embodiment, the water pump 31 is fixedly installed on the connecting water pipe 12 between the water pipe 15 and the clean water outlet 11. Clear water in the clear water cavity 7 is pumped into the water pipe 15 by the water pump 31.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. A water treatment device for aquaculture, characterized in that: the device comprises a coarse filtration tank (1) and a roller filtration device (2), wherein a first partition plate (3) and a second partition plate (4) are fixedly arranged in an inner cavity of the coarse filtration tank (1), the inner cavity of the coarse filtration tank (1) is divided into a sewage draining cavity (5), a separating cavity (6) and a clear water cavity (7) by the first partition plate (3), the sewage draining cavity (5) is communicated with the separating cavity (6) through the upper end of the first partition plate (3), the clear water cavity (7) is communicated with the separating cavity (6) through the lower end of the second partition plate (4), a bubble generator (9) is fixedly arranged at the bottom of the inner cavity of the separating cavity (6), a water inlet (10) is formed in the front surface of the separating cavity (6), and a clear water outlet (11) is formed in the bottom of the clear water cavity (7).
The roller filter device (2) comprises a filter box body (13) and a filter roller (14), wherein the filter roller (14) is rotationally connected to the inner cavity of the filter box body (13), and a water pipe (15) and an impurity collecting pipe (16) are respectively arranged in the filter roller (14) in parallel along the axial direction; the water inlet end of the water through pipe (15) passes through the side wall of the filtering box body (13) and is communicated with the clear water outlet (11) through the connecting water pipe (12), the water through pipe (15) is arranged above one side, deviating from the axis, of the filtering roller (14), and the water outlet opening (8) is formed in the inclined lower side, close to the filtering roller (14), of the water through pipe (15); the two ends of the impurity collecting pipe (16) respectively penetrate through the two side walls of the filtering box body (13) and are movably connected with the side walls of the filtering box body (13), the impurity collecting pipe (16) is arranged at the other side, close to the axis, in the filtering roller (14), and the impurity collecting pipe (16) is in a semicircular groove structure; a water outlet (17) is formed in the lower surface of the filtering box body (13);
The height of the upper end of the first partition plate (3) is lower than that of the coarse filtration tank (1), the lower end of the second partition plate (4) is provided with a communication port (18), and the clear water cavity (7) is communicated with the separation cavity (6) through the communication port (18);
A baffle plate (19) is fixedly arranged in the clear water cavity (7), the baffle plate (19) divides the clear water cavity (7) into a sedimentation cavity and a water outlet cavity, the sedimentation cavity is communicated with the water outlet cavity through the upper part of the baffle plate (19), the clear water outlet (11) is arranged at the bottom of the water outlet cavity, and the height of the baffle plate (19) is the same as that of the first partition plate (3);
The two side surfaces of the inner cavity of the filtering box body (13) are provided with rolling bearings (22) through bearing frames, the filtering roller (14) comprises a cylindrical filter screen (23) and flange edges (24), the flange edges (24) are fixedly arranged at two ends of the cylindrical filter screen (23), and two groups of the rolling bearings (22) are respectively meshed with the side surfaces of the two flange edges (24);
The two water outlets (17) are arranged, the two water outlets (17) are respectively communicated with the water inlet ends of the first water pumping pump (25) and the second water pumping pump (26), the water outlet end of the second water pumping pump (26) is communicated with one end of a connecting interface (27) through a water pipe pipeline, the connecting interface (27) is fixedly arranged on the side surface of the coarse filtration tank (1), the other end of the connecting interface (27) is connected with the water inlet end of a water spraying pipe (28), a plurality of water spraying guns (29) are uniformly and fixedly arranged on the outer surface of the water spraying pipe (28), water spraying openings of the water spraying guns (29) correspond to the inclined upper side surface of the filtering roller (14), and the water spraying opening direction of the water spraying guns (29) is in an inclined downward direction;
A plurality of water receiving tanks (30) are uniformly arranged on the outer surface of the filter drum (14) along the outer circumferential direction, the water receiving tanks (30) are of a semicircular tank structure, and two ends of each water receiving tank (30) are respectively and fixedly arranged on the side surface between two flange edges (24); the water receiving tank (30) is used for receiving clean water sprayed from the water spraying gun (29), and the filter roller (14) can be driven to rotate better due to the gravity action of the clean water received in the water receiving tank (30);
the water outlet opening (8) is of a trapezoid opening structure, the opening of one side of the water outlet opening (8) close to the water inlet end of the water pipe (15) is large, and the opening of one side of the water outlet opening far away from the water inlet end of the water pipe (15) is small;
When the device is used, sewage generated by aquaculture enters the separation cavity (6) through the water inlet (10), bubbles are generated through the bubble generator (9) in the separation cavity (6), surface active substances or hydrophobic micro-suspended substances in the sewage are adsorbed on the bubbles and float upwards to form a foam layer above the separation cavity (6), then flow into the sewage draining cavity (5) through the upper end of the first partition plate (3), are led out for centralized treatment, and water after organic substances are separated below the separation cavity (6) enters the clear water cavity (7) from the communication port (18) at the lower end of the second partition plate (4) and is conveyed into the water through the clear water outlet (11) to the water through the connecting water pipe (12); the water outlet opening (8) on one side of the water through pipe (15) flows out, falls onto the inner side surface of the filter roller (14) under the action of gravity, drives the filter roller (14) to rotate on the filter box (13) under the action of the impact of return water fall, drives the filter roller (14) to rotate and simultaneously filters clean water, impurities which cannot be filtered out can be rotated by the filter roller (14) to a position close to the circular vertex on the filter roller (14), impurities in the inner cavity of the filter roller (14) fall off from the filter roller (14) and fall into the impurity collecting pipe (16) under the action of gravity, and are collected.
2. A water treatment device for aquaculture according to claim 1, wherein: support bars (20) are fixedly arranged on the side surface of the inner cavity of the separation cavity (6), a filter screen (21) is placed on the support bars (20), and the water inlet (10) is arranged above the filter screen (21).
3. A water treatment device for aquaculture according to claim 1, wherein: a water pump (31) is fixedly arranged on the connecting water pipe (12) between the water pipe (15) and the clear water outlet (11).
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