CN215208980U

CN215208980U - Integrated water purifying equipment for recirculating aquaculture

Info

Publication number: CN215208980U
Application number: CN202023203546.7U
Authority: CN
Inventors: 李占勤; 刘湘安
Original assignee: Guangzhou Qili Environmental Equipment Co ltd
Current assignee: Guangzhou Qili Environmental Equipment Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-17
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses an integrated water purifying device for recirculating aquaculture, which comprises a box body, wherein a primary filter box, a secondary filter box and a tertiary filter box are arranged in the box body; the first-stage filter tank is internally provided with a water inlet cabin and a filter cabin, the water inlet cabin is communicated with a water outlet pipe of the aquaculture pond, and the filter cabin is internally provided with a drum-type micro-filter; the top of the secondary filter tank is communicated with the bottom of the filter cabin, and water filtered by the drum-type micro-filter enters the secondary filter tank; the secondary filter is internally provided with a filter brush and a sterilization cabin, the sterilization cabin is internally provided with a sterilization device, the secondary filter is communicated with the tertiary filter, the secondary filter enters the tertiary filter after being filtered by the secondary filter, the tertiary filter is a biological filter, the biological filter is used for removing harmful substances of nitrogen ammonia and nitrite in water, the biological filter is internally provided with an aeration device which provides oxygen for microorganisms in water, the biological filter is also provided with a filter outlet pipe, and the filter outlet pipe is communicated with an inlet pipe of an aquaculture pond, so that the aquaculture sewage is purified integrally.

Description

Integrated water purifying equipment for recirculating aquaculture

Technical Field

The utility model relates to a sewage treatment field especially relates to an integration recirculating aquaculture water purification unit.

Background

The water is the living environment of aquatic animals, and water quality plays an important role in aquaculture, and in a recirculating aquaculture system, the concentration of nitrogen-containing pollutants such as ammonia nitrogen, nitrite and the like in the aquaculture circulating water body is increased due to the accumulation of a large amount of excrement, secretion and residual bait of fishes in the aquaculture process, so that the cultured fishes are easy to attack or even die, namely, factors influencing the water quality in the aquaculture system mainly comprise ammonia nitrogen, nitrite and fine particulate matters, and therefore, the efficient removal of various water-soluble harmful pollutants is of great importance.

In the existing culture system, a filter tank, a biological purification tank and an ultraviolet sterilizer are arranged outside a culture tank and are sequentially communicated through pipelines, culture water sequentially passes through the filter tank, the biological purification tank and the ultraviolet sterilizer, and water subjected to sterilization treatment in the ultraviolet sterilizer returns to the culture tank through the pipelines. The treatment pools are relatively independent, the occupied area is large, the integrated centralized treatment cannot be realized, and the effect of treating harmful pollutants in water is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art not enough, the utility model is to provide an integration recirculating water aquaculture water purification unit, it can get rid of harmful pollutants such as large granular substance, tiny granular substance, ammonia nitrogen and nitrite in the breed sewage integratedly for breed sewage obtains better purifying effect.

The purpose of the utility model is realized by adopting the following technical scheme:

an integrated water purifying device for recirculating aquaculture comprises a box body, wherein a primary filter box, a secondary filter box and a tertiary filter box are arranged in the box body;

the primary filter tank is internally provided with a water inlet cabin and a filter cabin, the water inlet cabin is communicated with a water outlet pipe of the aquaculture pond, so that aquaculture sewage enters the water inlet cabin, and the filter cabin is internally provided with a drum-type micro-filter;

the drum-type micro-filter is provided with a drum and a driving device, the drum is rotatably arranged in the filtering cabin and is driven by the driving device, and the inner cavity of the drum is communicated with the water inlet cabin, so that sewage in the water inlet cabin can enter the inner cavity of the drum;

the roller is provided with a filter screen, so that sewage in the inner cavity of the roller can enter the bottom of the primary filter tank after being filtered by the filter screen;

the top of the secondary filter tank is communicated with the bottom of the filter cabin, so that water filtered by the primary filter tank can enter the secondary filter tank;

the secondary filter tank is internally provided with a first sedimentation tank and a second sedimentation tank, water filtered by the primary filter tank enters the first sedimentation tank for sedimentation, and the first sedimentation tank is internally provided with a filtering brush;

the top of the second sedimentation tank is communicated with the first sedimentation tank, so that water in the first sedimentation tank enters the second sedimentation tank after being filtered and precipitated by the filtering hairbrush;

a sterilization cabin is arranged in the second sedimentation tank, a sterilization device is arranged in the sterilization cabin, the top of the sterilization cabin is communicated with the second sedimentation tank, and the bottom of the sterilization cabin is communicated with the first sedimentation tank, so that the sterilization device can sterilize the water in the first sedimentation tank and the water in the second sedimentation tank;

the second sedimentation tank is also internally provided with a water pumping device which is communicated with the three-stage filter box by a water pipe and pumps water in the second sedimentation tank into the three-stage filter box by the water pumping device;

the three-stage filter box is a biological filter and is used for removing harmful substances such as nitrogen ammonia and nitrite in water, an aeration device for providing oxygen for microorganisms in the water is arranged in the biological filter, the biological filter is also provided with a filter water outlet pipe, and the filter water outlet pipe is communicated with a water inlet pipe of the aquaculture pond.

Further, the biofilter comprises a reaction zone and a drainage zone, the drainage zone is separated from the reaction zone by a partition plate, biological fillers are arranged in the reaction zone, and the aeration device is arranged at the bottom of the reaction zone;

the partition plate is provided with a plurality of fine gaps for communicating the drainage area with the reaction area, so that water in the reaction area can enter the drainage area from the gaps, but the biological filler cannot enter the drainage area;

the filter outlet pipe is arranged in the drainage area and is provided with a plurality of water through holes, so that water in the drainage area can enter the filter outlet pipe through the water through holes and flow back to the aquaculture pond.

Furthermore, the reaction zone is also provided with a water spray pipe communicated with the water pipe, and the water spray pipe is provided with a plurality of water inlet holes, so that water entering the water spray pipe can be uniformly sprayed in the reaction zone.

Furthermore, the aeration device comprises a plurality of aeration discs and an air pump, the aeration discs are arranged in the reaction zone, the air pump is arranged outside the box body, the aeration discs are communicated with one another through a pipeline, and the pipeline extends from the inside to the outside of the reaction zone and is connected with the air pump.

Further, the broken filaments of the filtering hairbrush are made of an optical fiber tube, the optical fiber is connected with an optical fiber generator, and the surface of the optical fiber is coated with a photocatalyst coating capable of decomposing ammonia nitrogen and nitrite.

Furthermore, a reverse flushing device is arranged in the filtering cabin and used for cleaning impurities attached to the filter screen.

Furthermore, the reverse flushing device comprises a high-pressure cleaning water pump, a water inlet cleaning pipe, a water outlet cleaning pipe, a plurality of cleaning nozzles, a nozzle fixing pipe and a sewage collecting pipe groove;

the nozzle fixing pipe is fixed in the filtering cabin and positioned outside the roller, and the cleaning nozzle is arranged on the nozzle fixing pipe opposite to the filter screen and communicated with the nozzle fixing pipe;

the high-pressure cleaning water pump is arranged outside the box body, the output end of the high-pressure cleaning water pump is communicated with the nozzle fixing pipe through the water inlet cleaning pipe, and the input end of the high-pressure cleaning water pump is communicated with the second sedimentation tank through the water inlet cleaning pipe;

the dirty tub of collection is located the inner chamber of cylinder, and the play water end of dirty tub of collection extends to the outside of box, makes the backwash the sewage of filter screen can pass through the dirty tub of collection is discharged.

Furthermore, the integrated water purification equipment for recirculating aquaculture further comprises a main sewage discharge pipe arranged outside the tank body;

the first sedimentation tank blow-off pipe is used for communicating the first sedimentation tank with the main blow-off pipe;

the second sedimentation tank blow-off pipe is used for communicating the second sedimentation tank with the main blow-off pipe;

the bioreactor sewage discharge pipe is used for communicating the bioreactor and the main sewage discharge pipe;

and the water outlet end of the sewage collecting pipe groove is communicated with the main sewage discharge pipe.

Further, the sterilizing device is a waterproof ultraviolet lamp.

Further, the water pumping device is a water pump.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses filter the large granule impurity of aquatic earlier through the drum-type microstrainer in the level-filtering case, utilize the filtration brush in the first sedimentation tank in the second grade filter case to filter the tiny particle impurity of aquatic, still utilize the sterilizing equipment in the second sedimentation tank to disinfect to the water in first sedimentation tank and the second sedimentation tank simultaneously, utilize tertiary filter case (biofilter) and aeration equipment to provide oxygen for the microorganism of aquatic at last, strengthen the purpose that organic matter and microorganism and dissolved oxygen contact in the tertiary filter case, guarantee the microorganism in the tertiary filter case under the condition that has sufficient dissolved oxygen, to the oxidative decomposition of organic matter in the sewage, thereby can get rid of organic nitrogen pollution harmful substance such as nitrogen ammonia and nitrite in the aquatic fast, and then can get rid of the large granule material in the breed sewage integratedly, tiny particle material, Harmful pollutants such as ammonia nitrogen, nitrite and the like, so that the culture sewage can obtain a better purification effect.

Drawings

FIG. 1 is a schematic structural view of the integrated water purifying apparatus for recirculating aquaculture of the present invention;

FIG. 2 is another schematic view of the integrated water purifying apparatus for recirculating aquaculture of the present invention;

FIG. 3 is a sectional view of the integrated water purifying apparatus for recirculating aquaculture of the present invention;

FIG. 4 is a schematic structural view of the integrated water purification device for recirculating aquaculture of the present invention in a state of being covered with a cover plate;

FIG. 5 is a schematic structural view of a disc support member according to an embodiment of the present invention;

FIG. 6 is a schematic view of another angular configuration of a disc support member according to an embodiment of the present invention;

FIG. 7 is a schematic view of a spray pipe according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a partition board in an embodiment of the present invention.

In the figure: 1. a box body; 10. a primary filter tank; 100. a water inlet cabin; 1001. a water inlet pipe; 1002. a first baffle plate; 101. a filtration compartment; 1010. a drum; 10101. filtering with a screen; 11. a secondary filter tank; 110. a first sedimentation tank; 1101. a second baffle; 11010. an overflow hole; 1102. a first sedimentation tank blow-off pipe; 111. a second sedimentation tank; 1110. a sterilization cabin; 1111. a blow-off pipe of the second sedimentation tank; 12. a third stage filter box; 120. a partition plate; 1200. a reaction zone; 1201. a drainage area; 12010. a water outlet pipe of the filter; 12011. a bioreactor blow-off pipe; 1202. a water spray pipe; 12020. a water inlet hole; 1203. a gap; 2. an aeration device; 20. an air pump; 21. a pipeline; 22. an aeration disc; 3. a water pipe; 4. a disc support; 40. a fixed part; 400. a semicircular notch; 41. an installation part; 5. a back flushing device; 50. cleaning a water pump at high pressure; 51. a water outlet cleaning pipe; 52. a water inlet cleaning pipe; 53. a nozzle fixing tube; 530. cleaning the nozzle; 54. a sewage collecting pipe groove; 6. an electric cabinet; 7. and a main sewage discharge pipe.

Detailed Description

In the following, the present invention is described with priority in conjunction with the accompanying drawings and the detailed description, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below may be arbitrarily combined to form a new embodiment.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The implementation mode is as follows:

referring to fig. 1-8, the utility model discloses an integrated water purifying device for recirculating aquaculture. As shown in figure 1, the embodiment of the utility model provides an integration recirculating water aquaculture water purification unit is including box 1, one-level filter box 10 has in the box 1, inlet chamber 100 and filter cabin 101 have in one-level filter box 10, can understand, inlet chamber 100 and filter cabin 101 are separated by first baffle 1002, inlet chamber 100 communicates the outlet pipe in aquaculture pond for breed sewage gets into in the inlet chamber 100. A drum-type microfilter is arranged in the filtering cabin 101, the drum-type microfilter is provided with a drum 1010 and a driving device, the drum 1010 is rotatably arranged in the filtering cabin 101 and is driven by the driving device, and the inner cavity of the drum 1010 is communicated with the water inlet cabin 100, so that sewage in the water inlet cabin 100 can enter the inner cavity of the drum 1010; the cover is equipped with filter screen 10101 on the cylinder 1010 for the sewage of cylinder 1010 inner chamber can pass through filter screen 10101 gets into after filtering the bottom of one-level rose box 10. In this embodiment, the drum 1010 is disposed in the filtering chamber 101 along the length direction of the filtering chamber 101, one end of the drum 1010 is closed, the other end of the drum 1010 is open, and the middle portion connecting the two ends of the drum 1010 is the filter screen 10101.

The disc support member 4 is arranged on the first baffle 1002, as shown in fig. 5, the disc support member 4 has a fixing portion 40 and a cylindrical mounting portion 41, the fixing portion 40 is arranged on the first baffle 1002 and is located in the water inlet chamber 100, and the cylindrical mounting portion 41 penetrates through the first baffle 1002 to enter the filtering chamber 101 and is connected with the roller 1010; that is, it can be understood that the closed end of the drum 1010 is rotatably mounted on the inner wall of the filtering chamber 101 by means of the rotating shaft, the open end of the drum 1010 is rotatably mounted on the mounting portion 41 of the cylindrical structure, and the fixing portion 40 is provided with a semicircular notch 400 communicated with the inner cavity of the mounting portion 41, so that the water in the water inlet chamber 100 enters the inner cavity of the mounting portion 41 of the cylindrical structure from the position of the circular notch and then enters the inner cavity of the drum 1010. The semicircular notch 400 is arranged to allow water in the water inlet compartment 100 to slowly flow into the inner cavity of the roller 1010, thereby providing a better filtering effect.

Of course, the driving device is in driving connection with one end of the roller 1010, so that the roller 1010 is driven to rotate by the driving device. Specifically, the driving device includes a driving motor, a driving gear and a driven gear, the driving motor is fixed on the first baffle 1002, an output end of the driving motor is in driving connection with the driving gear, the driven gear is fixedly arranged at one end of the opening of the drum 1010 and is in meshing transmission with the driving gear, and the drum 1010 can rotate in the filtering cabin 101 under the driving of the driving motor and through the meshing transmission of the driving gear and the driven gear. That is, it can be understood that the driving motor drives the driving gear to rotate, and the rotation of the driving gear drives the driven gear to rotate, so as to drive the rotation of the drum 1010. In addition, a speed reducer is further arranged between the driving motor and the driving gear, and the driving gear is made to rotate slowly by the speed reducer, so that the roller 1010 rotates slowly in the filtering cabin 101, and the filtering effect of the filter screen 10101 on the roller 1010 is better.

The drum 1010 type micro-filter in the primary filter tank 10 can filter large granular substances in sewage, in order to further filter substances in sewage, a secondary filter tank 11 is further arranged in the tank body 1, the secondary filter tank 11 is positioned at the bottom of the primary filter tank 10, and the top of the secondary filter tank 11 is communicated with the bottom of the filter cabin 101, so that water filtered by the primary filter tank 10 can enter the secondary filter tank 11.

Specifically, the second-stage filter tank 11 is provided with a first sedimentation tank 110 and a second sedimentation tank 111, the first sedimentation tank 110 and the second sedimentation tank 111 are separated by a second baffle 1101, the first sedimentation tank 110 is located below the filter cabin 101, the second sedimentation tank 111 is located at the side of the first sedimentation tank 110, water filtered by the first-stage filter tank 10 enters the first sedimentation tank 110 for sedimentation, that is, liquid filtered by the drum 1010 type microfilter enters the first sedimentation tank 110, the first sedimentation tank 110 is provided with a filter brush, and small particle impurities in the liquid in the first sedimentation tank 110 adhere to the filter brush, that is, the small particle impurities in the liquid are filtered by the filter brush. In order to ensure that the liquid entering the first sedimentation tank 110 from the filtering cabin 101 is fully sedimented in the first sedimentation tank 110, the top of the second sedimentation tank 111 is communicated with the first sedimentation tank 110, that is, a plurality of overflow holes 11010 are formed in the top of the second baffle 1101, so that the water in the first sedimentation tank 110 enters the second sedimentation tank 111 after being filtered and sedimented by the filtering brushes.

In order to sterilize the water in the first sedimentation tank 110 and the second sedimentation tank 110, a sterilization cabin 1110 is arranged in the second sedimentation tank 111, a sterilization device is arranged in the sterilization cabin 1110, the top of the sterilization cabin 1110 is communicated with the second sedimentation tank 111, and the bottom of the sterilization cabin 1110 is communicated with the first sedimentation tank 110, so that the sterilization device can sterilize the water in the first sedimentation tank 110 and the second sedimentation tank 111. In this embodiment, the sterilization device is preferably a waterproof ultraviolet lamp, and the water in the two-stage sedimentation tank is sterilized by the ultraviolet lamp.

The utility model discloses a box 1 still has tertiary filter case 12, for communicating secondary filter case 11 with tertiary filter case 12, in this embodiment, pumping device still has in the second sedimentation tank 111, pumping device communicates with the help of water pipe 3 tertiary filter case 12, with the help of pumping device takes into with the water in the second sedimentation tank 111 in the tertiary filter case 12. The water pumping device is preferably a water pump, and the water pipe 3 connects the third-stage filter tank 12 with the output end of the water pump, so that the water pump pumps the water in the second sedimentation tank 111 into the third-stage filter tank 12. The three-stage filter box 12 is a biological filter, and harmful substances such as nitrogen, ammonia and nitrite in water are removed by the biological filter; the biological filter is internally provided with an aeration device 2 for providing oxygen for microorganisms in water, the aeration device 2 not only enables the liquid in the three-stage filter box 12 to be in contact with air for oxygenation, but also accelerates the transfer of the oxygen in the air to the liquid due to the stirring of the liquid, thereby achieving the purpose of oxygenation; in addition, the aeration can also prevent the suspension in the tertiary filter tank 12 from sinking, and the purpose of contacting organic matters, microorganisms and dissolved oxygen in the tertiary filter tank 12 is enhanced, so that the microorganisms in the tertiary filter tank 12 are ensured to carry out oxidative decomposition on the organic matters in the sewage under the condition of sufficient dissolved oxygen, and further organic nitrogen pollution harmful substances such as nitrogen ammonia, nitrite and the like in the water can be rapidly removed through the biological filter. Of course, biofilter still has filter outlet pipe 12010, filter outlet pipe 12010 and aquaculture pond's inlet tube 1001 intercommunication, make the warp the utility model discloses a rivers return water after integration recirculating aquaculture water purifying plant purifies breeds in the pond, and recycle realizes the circulation that constantly flows of water.

The utility model discloses an integration recirculating aquaculture water purification unit is in the use, filter the large granule impurity of aquatic through the cylinder 1010 formula microstrainer in the primary filter case 10 earlier, utilize the filtration brush in the first sedimentation tank 110 in the secondary filter case 11 to filter the tiny particle impurity of aquatic, still utilize simultaneously sterilizing equipment in the second sedimentation tank 111 to disinfect to the water in first sedimentation tank 110 and the second sedimentation tank 111, utilize tertiary filter case 12 (biofilter) and aeration equipment 2 to provide oxygen for the microorganism in aquatic at last, strengthen the purpose that organic matter and microorganism and dissolved oxygen contact in tertiary filter case 12, guarantee that the microorganism in tertiary filter case 12 is under the condition that has sufficient dissolved oxygen, to the oxidative decomposition of organic matter in the sewage, thereby can get rid of organic nitrogen pollution harmful substance such as nitrogen ammonia and nitrite in the aquatic fast, and then harmful pollutants such as large granular substances, fine granular substances, ammonia nitrogen, nitrite and the like in the aquaculture sewage can be removed integrally, so that the aquaculture sewage can obtain a good purification effect.

As a preferred embodiment, as shown in fig. 4, the biofilter includes a reaction region 1200 and a drainage region 1201, the drainage region 1201 is separated from the reaction region 1200 by a partition 120, the reaction region 1200 has a biological filler (biochemical filter material) therein, the biological filler is used as a bacteria dock, a volcanic plant or medical stone of a microorganism growth carrier, and the biological filler (biochemical filter material) is used for removing harmful substances such as nitrogen and nitrite in water. The aeration device 2 is disposed at the bottom of the reaction zone 1200, specifically, the aeration device 2 includes a plurality of aeration discs 22 and an air pump 20, the aeration discs 22 are disposed in the reaction zone 1200, the air pump 20 is disposed outside the box body 1, the aeration discs 22 are communicated with each other by a pipeline 21, and the pipeline 21 extends from the inside to the outside of the reaction zone 1200 and is connected to the air pump 20, that is, the air pump 20 is used as an air source of the aeration discs 22, the aeration discs 22 provide oxygen in the reaction zone 1200, and bubbles flow upward from the bottom, so that a suspension in the reaction zone 1200 is prevented from sinking, contact of organic matters in the reaction zone 1200 with microorganisms and dissolved oxygen is enhanced, and the microorganisms in the liquid in the reaction zone 1200 are ensured to have sufficient dissolved oxygen to perform oxidative decomposition on the organic matters in the sewage. That is, the reaction zone 1200 effectively eliminates and rapidly degrades the harmful substances in water or water-soluble amonia and nitrite through the biochemical filter material and reasonably and uniformly flowing water without bubbles, thereby rapidly removing the organic nitrogen pollution harmful substances such as nitrogen ammonia and nitrite in water.

Of course, as shown in fig. 8, the partition plate 120 has a plurality of small gaps 1203 for communicating the drainage area 1201 with the reaction area 1200, so that water in the reaction area 1200 can enter the drainage area 1201 from the gaps 1203, but the biological filler cannot enter the drainage area 1201, that is, the partition plate 120 is used for carrying the biological filler. As shown in fig. 4, the filter outlet pipe 12010 is disposed in the drainage area 1201, and the filter outlet pipe 12010 has a plurality of water holes, so that water in the drainage area 1201 can enter the filter outlet pipe 12010 through the water holes and flow back to the aquaculture pond, and the water in the aquaculture system is always in a circulation state.

In a preferred embodiment, the reaction region 1200 further has a water spraying pipe 1202 connected to the water pipe 3, and the water spraying pipe 1202 has a plurality of water inlet holes 12020, so that water entering the water spraying pipe 1202 can be uniformly sprayed in the reaction region 1200, thereby achieving a better biological filtration effect in the reaction region 1200.

As preferred embodiment, the broken filament of filtering the brush adopts the fiber tube preparation, and optic fibre links to each other with optical fiber generator, and the coating of optical fiber surface has the photocatalyst coating that can decompose ammonia nitrogen and nitrite to improve the filtration and the decomposition effect of filtering the brush, make the utility model discloses an integration recirculating aquaculture water purification unit has the effect that reduces organic nitrogen such as ammonia nitrogen and nitrite in the sewage and pollute harmful substance in second grade rose box 11, thereby makes sewage get into and filters in the biofilter and be convenient for get rid of organic nitrogen such as the ammonia nitrogen of aquatic and nitrite and pollute harmful substance fast, and then makes sewage purification effect preferred.

As a preferred embodiment, a back flushing device 5 is disposed in the filtering chamber 101, and is used for cleaning impurities attached to the filtering net 10101, that is, the back flushing device 5 is used for flushing the impurities on the filtering net 10101. Of course, the utility model discloses an integration recirculating water aquaculture water purification unit has electric cabinet 6, is provided with liquid level controller in the middle part position in the cabin 100 of intaking, and this liquid level controller is controlled by electric cabinet 6. When the filter screen 10101 on the cylinder 1010 appears blockking up, the velocity of flow that the water in the cylinder 1010 inner chamber got into first sedimentation tank 110 from the position in filter screen 10101 hole is slower, and the velocity of flow of intaking in the cabin 100 is unchangeable, leads to intaking the water level in the cabin 100 and rises, rises to the position that sets up liquid level controller when the water level, and liquid level controller gives electric cabinet 6 with signal feedback, and electric cabinet 6 control back flushing device 5 starts to filter screen 10101's impurity washs on the cylinder 1010.

The back flushing device 5 comprises a high-pressure cleaning water pump 50, a water inlet cleaning pipe 52, a water outlet cleaning pipe 51, a plurality of cleaning nozzles 530, a nozzle fixing pipe 53 and a sewage collecting pipe tank 54; the nozzle fixing pipe 53 is fixed in the filtering cabin 101 and positioned outside the roller 1010, and the cleaning nozzle 530 is arranged on the nozzle fixing pipe 53 opposite to the filter screen 10101 and communicated with the nozzle fixing pipe 53; the high-pressure cleaning water pump 50 is arranged outside the box body 1, the output end of the high-pressure cleaning water pump 50 is communicated with the nozzle fixing pipe 53 through the water inlet cleaning pipe 52, and the input end of the high-pressure cleaning water pump 50 is communicated with the second sedimentation tank 111 through the water inlet cleaning pipe 52; the dirt collecting pipe groove 54 is formed in the inner cavity of the drum 1010, and the water outlet end of the dirt collecting pipe groove 54 extends to the outside of the box body 1, so that the dirt reversely washed by the filter screen 10101 can be discharged through the dirt collecting pipe groove 54. In the using process, the high-pressure cleaning water pump 50 is used for pumping the water in the second sedimentation tank 111 to the cleaning nozzle 530, the cleaning nozzle 530 sprays the filter screen 10101 on the roller 1010, impurities on the filter screen 10101 are washed to the sewage collecting pipe groove 54 arranged in the inner cavity of the roller 1010, and the sewage collecting pipe groove 54 discharges the washed sewage (containing the impurities) out of the box body 1, so that the reverse washing of the filter screen 10101 is completed, and the filtering efficiency of the filter screen 10101 is improved.

As a preferred embodiment, the integrated water purification equipment for recirculating aquaculture further comprises a main sewage discharge pipe 7, a first sedimentation tank sewage discharge pipe 1102, a second sedimentation tank sewage discharge pipe 1111 and a bioreactor sewage discharge pipe 12011, wherein the main sewage discharge pipe 7 is arranged outside the tank body 1, and the first sedimentation tank sewage discharge pipe 1102 is used for communicating the first sedimentation tank 110 and the main sewage discharge pipe 7; the second sedimentation tank blow-off pipe 1111 is used for communicating the second sedimentation tank 111 with the main blow-off pipe 7; the bioreactor sewage discharge pipe 12011 is used for communicating the bioreactor with the main sewage discharge pipe 7; that is, it can be understood that when the sludge of the first settling tank 110, the second settling tank 111, and the bottom of the bioreactor reaches a certain amount or accumulates for a certain time, the sludge discharge can be performed by opening the main sludge discharge pipe 7. Of course, the water outlet end of the dirt collecting pipe 54 is communicated with the main dirt discharging pipe 7, that is, the dirt on the filter screen 10101 on the cleaning roller 1010 is discharged through the main dirt discharging pipe 7.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. An integration recirculating aquaculture water purification unit which characterized in that: the device comprises a box body, wherein a primary filter box, a secondary filter box and a tertiary filter box are arranged in the box body;

the roller is provided with a filter screen, and sewage in the inner cavity of the roller can enter the bottom of the primary filter box after being filtered by the filter screen;

2. The integrated recirculating aquaculture water purifying plant of claim 1, characterized in that: the biological filter comprises a reaction zone and a drainage zone, the drainage zone is separated from the reaction zone by a partition plate, biological filler is arranged in the reaction zone, and the aeration device is arranged at the bottom of the reaction zone;

3. The integrated recirculating aquaculture water purifying plant of claim 2, characterized in that: the reaction zone is also provided with a water spray pipe communicated with the water pipe, and the water spray pipe is provided with a plurality of water inlet holes, so that water entering the water spray pipe can be uniformly sprayed in the reaction zone.

4. The integrated recirculating aquaculture water purifying plant of claim 2, characterized in that: the aeration device comprises a plurality of aeration discs and an air pump, the aeration discs are arranged in the reaction zone, the air pump is arranged outside the box body, and the aeration discs are communicated with each other by virtue of a pipeline, and the pipeline extends from the inside of the reaction zone to the outside and is connected with the air pump.

5. The integrated recirculating aquaculture water purifying plant of claim 1, characterized in that: the broken filament of filtering the brush adopts the fiber tube preparation, and optic fibre links to each other with the optical fiber generator, and the coating of optic fibre surface has the photocatalyst coating that can decompose ammonia nitrogen and nitrite.

6. The integrated recirculating aquaculture water purifying plant of claim 1, characterized in that: and a reverse flushing device is arranged in the filtering cabin and used for cleaning impurities attached to the filter screen.

7. The integrated water purification equipment for recirculating aquaculture of claim 6, wherein: the reverse flushing device comprises a high-pressure cleaning water pump, a water inlet cleaning pipe, a water outlet cleaning pipe, a plurality of cleaning nozzles, a nozzle fixing pipe and a sewage collecting pipe groove;

8. The integrated recirculating aquaculture water purifying plant of claim 7, characterized in that: also comprises

The main sewage discharge pipe is arranged outside the box body;

9. The integrated recirculating aquaculture water purifying plant of claim 1, characterized in that: the sterilizing device is a waterproof ultraviolet lamp.

10. The integrated recirculating aquaculture water purifying plant of claim 1, characterized in that: the water pumping device is a water pump.