Circulating water filtering device for fish culture

Abstract

The invention relates to the technical field of tail water treatment, and discloses a circulating water filtering device for fish culture, comprising: a filtering and sterilizing assembly comprising a box body, a water inlet pipe fixedly connected to the box body, a pollution discharge mechanism arranged in the box body and used for collecting and discharging tail water precipitates, a filtering mechanism arranged at the top of the pollution discharge mechanism and used for filtering tail water, a stirring and scraping mechanism rotationally connected with the box body is arranged between the filtering mechanism and the sewage discharging mechanism. According to the invention, the filtering operation of the fish culture tail water is rapidly realized, the tail water is treated by adopting aeration, flocculant addition, ozone and ultraviolet sterilization before filtering, the centralized rapid treatment of the fish culture tail water is realized, the traditional tail water treatment process is simplified, and the tail water purification treatment efficiency is improved; meanwhile, the water quality and the oxygen content of the water are improved by adopting aeration and adsorption modes, so that the fish farming tail water is convenient to recycle; replacement without shutdown is achieved, and the continuous purification requirement of tail water is met.

Description

Technical Field

[0001] The invention relates to the technical field of tail water treatment, in particular to a circulating water filtering device for fish farming. Background Art

[0002] In the process of aquaculture, it is usually necessary to put in artificial synthetic bait or fresh bait such as small fish, while the leftover bait, excrement and dead animals and plants are the main sources of pollution in the aquaculture pond. The main manifestations of pollution are: the leftover bait, excrement and dead animals and plants will consume the dissolved oxygen in the water during the microbial decomposition process, and release products such as nitrite nitrogen, nitrate nitrogen, ammonia nitrogen, sulfide, etc., thereby increasing the content of COD, total nitrogen, total phosphorus, ammonia nitrogen, etc. in the water, which is easy to cause eutrophication of the water body, increase the oxygen consumption of the bottom sediment of the water body, reduce the redox capacity of the bottom sediment, and cause changes in the composition and quantity of benthic organisms, thereby affecting the ecological environment of the aquaculture waters. Even if a recirculating aquaculture system is used, there is still a lot of tail water discharged from the foam separation and microfiltration machine, and feces and leftover bait are easily decomposed into smaller particles or organic and inorganic solubles during the movement of the pipeline, during treatment and under the impact of the microfiltration machine's rotation filtration; if these solid wastes and solubles enter the aquaculture system again, it will inevitably lead to changes in the water environment of the aquaculture system, causing the death of aquaculture organisms and even leading to aquaculture failure. Therefore, most of the tail water after the current flow-through and recycling use cannot be recycled;

[0003] Existing aquaculture tail water is generally transported to a sewage treatment plant for purification, which cannot achieve rapid filtering and circulating operation of the tail water. Therefore, a circulating water filtration device for fish aquaculture is proposed. Summary of the invention

[0004] In order to solve the technical problem that the rapid filtering and circulating operation of tail water cannot be realized, the present invention provides a circulating water filtering device for fish farming.

[0005] The present invention is implemented by the following technical scheme: a circulating water filtration device for fish farming, comprising:

[0006] A filtration and sterilization assembly, comprising a box body, a water inlet pipe is fixedly connected to the box body, a sewage discharge mechanism for collecting and discharging tail water sediment is arranged inside the box body, a filtering mechanism for filtering tail water is arranged on the top of the sewage discharge mechanism, a stirring and scraping mechanism rotatably connected to the box body is arranged between the filtering mechanism and the sewage discharge mechanism, the stirring and scraping mechanism is used to aerate, sterilize, mix and scrape the tail water, an air pipe 1 for supplying air to the stirring and scraping mechanism and a liquid supply pipe for providing flocculant are arranged on the top of the box body, an air pipe 2 for supplying air to the stirring and scraping mechanism is arranged on the top of the box body, and the filtering mechanism is coaxially arranged with the sewage discharge mechanism and the stirring and scraping mechanism;

[0007] The stirring and scraping mechanism includes a driving tube movably sleeved with the bottom of the box body, an isolation tube rotatably connected to the top of the driving tube is fixedly connected to the inner side wall of the top of the box body, a cross bar located at the top of the filtering mechanism is fixedly connected to the outer ring of the isolation tube, a scraper 1 for the top of the filtering mechanism and a scraper 2 located at the bottom of the scraper 1 are fixedly connected to the cross bar, a brush plate with a circular arc structure at the top is fixedly connected to the top of the cross bar, an isolation box is fixedly connected to the top of the driving tube, an extension tube connected to the top of the isolation box is fixedly connected, and the top of the extension tube is rotatably sleeved with the liquid supply tube, an isolation sleeve connected to the inner ring of the driving tube is fixedly sleeved at the bottom of the isolation box, a nozzle 1 connected to the isolation sleeve is fixedly connected, and the nozzle 1 is fixedly sleeved with the isolation box and the isolation tube, the isolation box is fixedly connected to a nozzle 2 fixedly sleeved with the isolation tube, the isolation tube is fixedly sleeved with a nozzle 3, and one end of the driving tube extending out of the bottom of the box body is connected to a power mechanism driving it to rotate;

[0008] The deodorizing assembly comprises a deodorizing box, the deodorizing box is connected with a conveying pipe connected with the box body, a bearing mechanism is fixedly connected inside the deodorizing box, the top of the bearing mechanism is detachably connected with the deodorizing mechanism, and one side of the deodorizing mechanism abuts against a discharge groove fixedly connected with the deodorizing box.

[0009] As a further improvement of the above scheme, the power mechanism includes a gear ring fixedly connected to the outer ring of the bottom of the driving tube, a gear is meshed on one side of the gear ring, a rotating shaft is fixedly connected to the gear, a motor fixed to the top of the rotating shaft is fixedly connected to the box body, air pipe 1 is distributed between the inner ring of the isolation tube and the outer ring of the extension tube, a liquid storage tank is fixedly connected to the side of the liquid supply tube away from the box body, and air pipe 2 rotates with the inner ring of the bottom of the driving tube.

[0010] As a further improvement of the above scheme, the sewage discharge mechanism includes a collecting hopper arranged at the bottom of the water inlet pipe and fixedly connected to the box body, a sedimentation tube fixedly connected to the bottom of the collecting hopper and the bottom of the box body, a movable plate slidably connected to the inner ring of the sedimentation tube and the outer ring of the driving tube, an air bag fixedly connected to the bottom of the movable plate and the box body, and a mud discharge pipe fixedly connected to the sedimentation tube.

[0011] As a further improvement of the above scheme, the filtering mechanism includes a concentrating plate arranged on the top of the water inlet pipe and fixedly connected to the box body, a riser pipe fixedly connected to the top of the concentrating plate, a filter plate with an annular structure fixedly connected to the outer circle of the riser pipe, a guide plate fixedly connected to the outer circle of the filter plate fixedly connected to the box body, and a slag discharge trough fixedly connected to the box body is fixedly connected to the guide plate.

[0012] As a further improvement of the above scheme, one end of the conveying pipe extending into the box is located at the top of the concentrating plate, the bottom of scraper one is in conflict with the top of the riser pipe, the top of scraper two is in conflict with the filter plate and the top of the guide plate, the bottom of the guide plate is fixedly connected to a sterilization lamp one with an annular structure, the top of the box is fixedly connected to a sterilization lamp two with an annular structure, and the bottom of sterilization lamp two is in conflict with the top of the brush plate.

[0013] As a further improvement of the above scheme, the supporting mechanism includes a partition fixedly connected to the deodorizing box, the top of the partition is provided with drainage channels distributed in sequence along its length direction, one side of the top opening of the drainage channel is provided with an inwardly recessed slide groove, a closing plate 1 is slidably connected inside the slide groove, one end of the closing plate 1 extending into the slide groove is fixedly connected to a spring fixedly connected to the inner side wall of the end of the slide groove, and the top of the closing plate 1 is fixedly connected to a block docking with the deodorizing mechanism.

[0014] As a further improvement of the above scheme, the deodorization mechanism includes a storage box, a partition plate arranged in a vertical direction is fixedly connected inside the storage box, an adsorption unit is arranged on one side of the partition plate, an overflow pipe located on the storage box is arranged between the adsorption unit and the adjacent discharge groove, a water inlet located at the bottom of the storage box is opened below the side of the adsorption unit away from the adjacent discharge groove, the adsorption unit is slidably connected to a closing unit 1 connected to the partition plate, and a closing unit 2 for the water inlet and sealing is fixedly connected to the bottom of the closing unit 1.

[0015] As a further improvement of the above scheme, the adsorption unit includes two groups of material storage plates fixedly connected to the storage box, a material storage space is formed between the two groups of material storage plates, activated carbon is filled between the two groups of material storage plates, a discharge port is opened on the top of the storage box and is located between the two groups of material storage plates, a cover plate is installed at the opening of the discharge port, and the material storage plate is provided with a liquid inlet channel arranged in sequence along its length direction.

[0016] As a further improvement of the above scheme, the closed unit 1 includes a deflection tube rotatably sleeved with the storage box, and the deflection tube is located on the side of the partition plate away from the adsorption unit, the end of the deflection tube extending out of the storage box is fixedly connected to an L-shaped lap plate, the end of the deflection tube extending into the interior of the storage box is threadedly sleeved with a movable rod, the other end of the movable rod is fixedly connected to a U-shaped push-pull frame slidably sleeved with the partition plate, two groups of adjustment plates distributed on both sides of the adsorption unit are provided on the side of the partition plate away from the deflection tube, the adsorption unit is slidably connected to the adjustment plate, the adjustment plate is fixedly connected to the push-pull frame, and the adjustment plate is provided with two liquid inlet channels distributed sequentially along its length direction.

[0017] As a further improvement of the above scheme, the closed unit 2 includes a pull rod fixed to the closed unit 1, and the bottom of the pull rod is slidably connected to a driven plate slidably connected to the bottom of the storage box. The driven plate slides along the width direction of the storage box, and the top of the driven plate is provided with an extrusion groove which is inclined and slidably connected to the bottom of the pull rod. The bottom of the driven plate is provided with an extension channel which passes through the bottom of the storage box, and the extension channel is slidably connected to a connecting plate fixed to the driven plate. An installation groove located at the bottom of the storage box is provided on one side of the bottom of the extension channel, and the installation groove is slidably connected to a closed plate 2 for sealing the water inlet, and the closed plate 2 is fixed to the connecting plate, and a card slot for docking with the supporting mechanism is provided at the bottom of the closed plate 2.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention adopts the tail water overflow filtration and sludge sedimentation separation method to quickly realize the filtration operation of fish farming tail water. Before filtration, the tail water is treated by aeration, addition of flocculants, ozone and ultraviolet sterilization, thereby realizing centralized and rapid treatment of fish farming tail water, simplifying the traditional tail water treatment process, and improving the tail water purification treatment efficiency.

[0020] 2. The present invention uses activated carbon adsorption to deodorize the initially purified tail water, and the purified water is continued to be used for aquaculture, thereby realizing the recycling of fish tail water. At the same time, aeration and adsorption are used to improve the water quality and oxygen content of the water, which is convenient for recycling.

[0021] 3. The present invention adopts a multi-group combined design during the deodorization process. During the replacement of activated carbon, the normal use of adjacent deodorization components is not affected, and the replacement is achieved without stopping the machine, thus meeting the continuous purification requirements of tail water. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a circulating water filtration device for fish farming provided by the present invention;

[0023] Figure 2 A schematic diagram of the structure of the filtration and sterilization assembly provided by the present invention;

[0024] Figure 3 A schematic diagram of the structure of the stirring and scraping mechanism provided by the present invention;

[0025] Figure 4 A partial enlarged view of the stirring and scraping mechanism provided by the present invention;

[0026] Figure 5 A schematic diagram of the structure of the deodorizing assembly provided by the present invention;

[0027] Figure 6 A schematic diagram of the structure of the deodorizing mechanism provided by the present invention;

[0028] Figure 7 The figure is a side view of the deodorizing mechanism provided by the present invention.

[0029] Description of main symbols:

[0030] 1. Box; 2. Water inlet pipe; 3. Drainage mechanism; 4. Filter mechanism; 5. Stirring and scraping mechanism; 6. Deodorization box; 7. Carrying mechanism; 8. Deodorization mechanism; 9. Discharge trough; 10. Liquid supply pipe; 11. Air pipe 1; 12. Air pipe 2; 13. Delivery pipe; 31. Collection hopper; 32. Sedimentation pipe; 33. Mud discharge pipe; 34. Movable plate; 35. Air bag; 41. Concentration plate; 42. Rising flow pipe; 43. Filter plate; 44. Guide plate; 45. Slag discharge trough; 46. Sterilization lamp 1; 51. Drive pipe; 52. Isolation pipe; 53 , cross bar; 54, scraper one; 55, scraper two; 56, brush plate; 57, isolation box; 58, extension pipe; 59, nozzle three; 510, isolation sleeve; 511, nozzle one; 512, nozzle two; 81, storage box; 82, partition plate; 83, push-pull rack; 84, overflow pipe; 85, water inlet; 86, closing plate two; 87, adjustment plate; 88, adsorption unit; 89, movable rod; 810, deflection tube; 811, lap plate; 812, pull rod; 813, driven plate; 814, extrusion groove; 815, installation groove. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0032] Embodiment 1:

[0033] Please combine Figure 1-Figure 4 A circulating water filtration device for fish farming in this embodiment includes:

[0034] A filtration and sterilization assembly, comprising a housing 1, a water inlet pipe 2 being fixedly connected to the housing 1, a sewage discharge mechanism 3 for collecting and discharging tailwater sediment being arranged inside the housing 1, a filtering mechanism 4 for filtering tailwater being arranged on the top of the sewage discharge mechanism 3, a stirring and scraping mechanism 5 rotatably connected to the housing 1 being arranged between the filtering mechanism 4 and the sewage discharge mechanism 3, the stirring and scraping mechanism 5 being used for aerating, sterilizing, mixing and scraping the tailwater, an air pipe 11 for supplying air to the stirring and scraping mechanism 5 and a liquid supply pipe 10 for providing flocculant being arranged on the top of the housing 1, an air pipe 2 12 for supplying air to the stirring and scraping mechanism 5 being arranged on the top of the housing 1, and the filtering mechanism 4 being arranged coaxially with the sewage discharge mechanism 3 and the stirring and scraping mechanism 5;

[0035] The stirring and scraping mechanism 5 includes a driving tube 51 movably sleeved with the bottom of the box body 1, an isolation tube 52 rotatably connected to the inner side wall of the top of the box body 1 is fixedly connected to the top of the driving tube 51, a cross bar 53 located at the top of the filtering mechanism 4 is fixedly connected to the outer ring of the isolation tube 52, a scraper 1 54 for the top of the filtering mechanism 4 and a scraper 2 55 located at the bottom of the scraper 1 54 are fixedly connected to the cross bar 53, a brush plate 56 with a circular arc structure at the top is fixedly connected to the top of the driving tube 51, and a brush plate 56 with a circular arc structure at the top is fixedly connected to the top of the driving tube 51. There is an isolation box 57, the top of the isolation box 57 is fixedly connected to an extension pipe 58 connected thereto, and the top of the extension pipe 58 is rotatably sleeved with the liquid supply pipe 10, the bottom of the isolation box 57 is fixedly sleeved with an isolation sleeve 510 connected to the inner circle of the driving pipe 51, the isolation sleeve 510 is fixedly connected to a nozzle 1 511 connected thereto, and the nozzle 1 511 is fixedly sleeved with the isolation box 57 and the isolation pipe 52, the isolation box 57 is fixedly connected to a nozzle 2 512 fixedly sleeved with the isolation pipe 52, and the isolation pipe 5 2 is fixedly sleeved with a nozzle three 59, and one end of the driving pipe 51 extending out of the bottom of the box body 1 is connected to a power mechanism that drives it to rotate. When the stirring and scraping mechanism 5 is running, the ozone transported from the air pipe two 12 is transported to the isolation sleeve 51 along the driving pipe 51, and then sprayed from the nozzle one 511 into the tail water to oxidize the tail water. At the same time, the air enters the isolation pipe 52 along the air pipe one 11 and then sprayed from the nozzle two 512 into the tail water to aerate the tail water, thereby increasing The oxygen content of the tail water is determined by the flocculant entering the extension pipe 58 and the isolation box 57 along the liquid supply pipe 10 and finally being sprayed out from the nozzle 1 511 into the tail water to perform a flocculant operation on the tail water. At the same time, when the driving pipe 51 rotates, the cross bar 53 is driven to rotate. The scraper 1 54 on the cross bar 53 scrapes off the foam and suspended matter gathered at the top of the riser pipe 42, and the scraper 2 55 scrapes off the impurities remaining on the filter plate 43. The scraped impurities enter the slag discharge tank 45 for discharge.

[0036] The power mechanism includes a gear ring fixedly sleeved with the outer ring at the bottom of the driving tube 51, a gear meshing with one side of the gear ring, a rotating shaft fixedly sleeved with the gear, a motor fixedly connected to the box body 1 is fixedly connected to the top of the rotating shaft, an air pipe 11 is distributed between the inner ring of the isolation tube 52 and the outer ring of the extension tube 58, and a liquid storage tank is fixedly connected to the side of the liquid supply tube 10 away from the box body 1. The air pipe 2 12 rotates with the inner ring at the bottom of the driving tube 51, and the motor starts, driving the gear and the gear ring to rotate, thereby rotating the driving tube 51 and rotating the stirring and scraping mechanism 5 as a whole, thereby achieving stirring and mixing of the tail water and scraping off the impurities, foam and suspended matter after filtration.

[0037] Embodiment 2:

[0038] On the basis of Example 1, this embodiment is further improved in that: the sewage discharge mechanism 3 includes a collecting hopper 31 arranged at the bottom of the water inlet pipe 2 and fixedly sleeved with the box body 1, a sedimentation tube 32 fixedly connected to the bottom of the collecting hopper 31 and fixedly connected to the bottom of the box body 1, a movable plate 34 slidably sleeved on the inner circle of the sedimentation tube 32 and slidably sleeved with the outer circle of the driving tube 51, an air bag 35 fixedly connected to the bottom of the movable plate 34 and fixedly connected to the box body 1, and a mud discharge pipe 33 fixedly connected to the sedimentation pipe 32. The sinking materials such as sand and gravel sludge with larger particles in the tail water flow downward along the collecting hopper 31 into the sedimentation tube 32, squeezing the movable plate 34 to move downward. When the mud discharge pipe 33 is not blocked by the movable plate 34, the sludge can be discharged along the mud discharge pipe 33, and the sludge deposited in the box body 1 is cleaned in time.

[0039] The filtering mechanism 4 includes a concentrating plate 41 disposed on the top of the water inlet pipe 2 and fixedly connected to the box body 1, a riser pipe 42 fixedly connected to the top of the concentrating plate 41, a filter plate 43 of an annular structure fixedly connected to the outer ring of the riser pipe 42, a guide plate 44 fixedly connected to the outer ring of the filter plate 43 fixedly connected to the box body 1, a slag discharge trough 45 fixedly connected to the box body 1 fixedly connected to the guide plate 44, the tail water enters the box body 1 and overflows upward under the guidance of the concentrating plate 41 and the riser pipe 42, and then is discharged from the top of the riser pipe 42, and then is filtered at the filter plate 43, and ultraviolet sterilization is performed at the filter plate 43 and the top of the concentrating plate 41;

[0040] One end of the delivery pipe 13 extending into the box body 1 is located at the top of the concentrating plate 41, the bottom of the scraper 1 54 is in conflict with the top of the riser 42, the top of the scraper 2 55 is in conflict with the top of the filter plate 43 and the guide plate 44, the bottom of the guide plate 44 is fixedly connected with a sterilization lamp 1 46 with an annular structure, and the top of the box body 1 is fixedly connected with a sterilization lamp 2 with an annular structure, and the bottom of the sterilization lamp 2 is in conflict with the top of the brush plate 56.

[0041] Embodiment 3:

[0042] Combination Figure 1 , Figure 5-Figure 7 , based on the embodiment 1, the present embodiment is further improved in that: the deodorizing assembly comprises a deodorizing box 6, the deodorizing box 6 is connected to a conveying pipe 13 connected to the box body 1, a bearing mechanism 7 is fixedly connected inside the deodorizing box 6, a deodorizing mechanism 8 is detachably connected to the top of the bearing mechanism 7, one side of the deodorizing mechanism 8 abuts against a discharge trough 9 fixedly connected to the deodorizing box 6, a pressing plate of an L-shaped structure for pressing the deodorizing mechanism 8 is arranged on one side of the top of the deodorizing mechanism 8, a push-pull rod slidably sleeved with the deodorizing box 6 is fixedly connected to the side of the pressing plate away from the deodorizing mechanism 8, a fixing plate is installed on one end of the push-pull rod extending out of the deodorizing box 6, and the fixing plate is fixedly connected to the deodorizing box 6 by bolts;

[0043] The carrying mechanism 7 includes a partition fixedly connected to the deodorizing box 6, and drainage channels are sequentially distributed along the length direction of the partition on the top, and a slide groove concave inward is provided on one side of the top opening of the drainage channel. A closing plate 1 is slidably connected inside the slide groove, and a spring fixedly connected to the inner side wall of the end of the slide groove is fixedly connected to the end of the closing plate 1. A block that docks with the deodorizing mechanism 8 is fixedly connected to the top of the closing plate 1;

[0044] The deodorizing mechanism 8 includes a storage box 81, a partition plate 82 arranged in the vertical direction is fixedly connected inside the storage box 81, an adsorption unit 88 is arranged on one side of the partition plate 82, an overflow pipe 84 located on the storage box 81 is arranged between the adsorption unit 88 and the adjacent discharge tank 9, a water inlet 85 located at the bottom of the storage box 81 is opened below the side of the adsorption unit 88 away from the adjacent discharge tank 9, the adsorption unit 88 is slidably connected to a closing unit 1 connected to the partition plate 82, and a closing unit 2 for the water inlet 85 and sealing is fixedly connected to the bottom of the closing unit 1;

[0045] The adsorption unit 88 includes two groups of material storage plates fixedly connected to the storage box 81, a material storage space is formed between the two groups of material storage plates, and the space between the two groups of material storage plates is filled with activated carbon. The top of the storage box 81 is provided with a discharge port located between the two groups of material storage plates, and a cover plate is installed at the opening of the discharge port. The material storage plate is provided with a liquid inlet channel 1 arranged in sequence along its length direction;

[0046] The closed unit 1 includes a deflection tube 810 rotatably sleeved with the storage box 81, and the deflection tube 810 is located on the side of the partition plate 82 away from the adsorption unit 88, and one end of the deflection tube 810 extending out of the storage box 81 is fixedly connected with an L-shaped lap plate 811, and one end of the deflection tube 810 extending into the storage box 81 is threadedly sleeved with a movable rod 89, and the other end of the movable rod 89 is fixedly connected with a U-shaped push-pull frame 83 slidably sleeved with the partition plate 82, and two groups of adjustment plates 87 distributed on both sides of the adsorption unit 88 are arranged on the side of the partition plate 82 away from the deflection tube 810, and the adsorption unit 88 is slidably connected with the adjustment plate 87, and the adjustment plate 87 is fixedly connected with the push-pull frame 83, and the adjustment plate 87 is provided with a second liquid inlet channel distributed in sequence along its length direction;

[0047] The second closed unit includes a pull rod 812 fixedly connected to the push-pull frame 83 of the first closed unit, and a follower plate 813 slidably connected to the bottom of the storage box 81 is slidably connected to the bottom of the pull rod 812. The follower plate 813 slides along the width direction of the storage box 81. An extrusion groove 814 which is inclined and slidably connected to the bottom of the pull rod 812 is provided on the top of the follower plate 813. An extension channel which passes through the bottom of the storage box 81 is provided at the bottom of the follower plate 813. The extension channel is slidably connected to a connecting plate fixed to the follower plate 813. An installation groove 815 located at the bottom of the storage box 81 is provided on one side of the bottom of the extension channel. The installation groove 815 is slidably connected to a second closed plate 86 for closing the water inlet 85, and the second closed plate 86 is fixedly connected to the connecting plate. A card slot for docking with the bearing mechanism 7 is provided at the bottom of the second closed plate 86.

[0048] The preliminarily purified tail water is transported along the transport pipe 13 to the bottom of the supporting mechanism 7 inside the deodorizing box 6, and then the supporting mechanism 7 transports the tail water to the deodorizing mechanism 8, which further deodorizes the tail water by adsorption, and finally discharges it along the discharge tank 9;

[0049] When the activated carbon inside the deodorizing mechanism 8 needs to be replaced, first remove the bolts on the fixing plate, then pull the fixing plate to move the push-pull rod and the pressure plate to the side away from the deodorizing mechanism 8, the pressure plate presses the deodorizing mechanism 8, and then remove the bolts used to fix the lap plate 811 to the adjacent discharge slot 9, and then rotate the lap plate 811 to make the lap plate 811 rotate to one side of the discharge slot 9, driving the deflection tube 810 to rotate, and under the action of the thread, the movable rod 89 moves to the side of the partition plate 82, driving the push-pull frame 83 to move, and at this time, the two sets of adjustment plates 87 and the pull rod 812 all move with the push-pull frame 83;

[0050] When the adjustment plate 87 moves, the liquid inlet channel 2 on the adjustment plate 87 is offset from the liquid inlet channel 1 on the material storage plate of the adsorption unit 88, so that the water flow cannot enter the liquid inlet channel 1 along the liquid inlet channel 2. The two groups of adjustment plates 87 block the two groups of material storage plates, which is convenient for replacing the activated carbon between the two groups of material storage plates. At the same time, when the pull rod 812 moves, the extrusion groove 814 on the driven plate 813 is squeezed to make the driven plate 813 slide along the width direction of the storage box 81, thereby driving the connecting plate and the closing plate 2 86 to move. The closing plate 2 86 blocks the water inlet 85. The closing plate 2 86 is connected to the closing plate 1 on the supporting mechanism 7 by a slot and block method. When the closing plate 2 86 moves, it can also drive the closing plate 1 to block the drainage channel. When the deodorizing mechanism 8 is taken out from the supporting mechanism 7, the closing plate 1 keeps blocking the drainage channel under the action of the spring.

[0051] Embodiment 4:

[0052] A control box is installed on one side of the box body 1, and a controller is installed inside the control box. A display screen, a power interface, a data interface and a switch are installed on one side of the control box. A delivery pump is installed on the liquid supply pipe 10 and the delivery pipe 13. The controller is connected to the motor, the delivery pump, the display screen, the power interface, the data interface and the switch.

[0053] The present invention adopts the tail water upward overflow filtration and sludge sedimentation separation mode to quickly realize the filtering operation of fish farming tail water, and adopts aeration, flocculant addition, ozone and ultraviolet sterilization to treat the tail water before filtration, thereby realizing the centralized and rapid treatment of fish farming tail water, simplifying the traditional tail water treatment process, and improving the tail water purification treatment efficiency; the preliminarily purified tail water is deodorized by activated carbon adsorption, and the purified water is continuously used for aquaculture, thereby realizing the recycling of fish farming tail water, and at the same time, aeration and adsorption are adopted to improve the water quality and oxygen content of the water, so as to facilitate recycling; a multi-group combined design is adopted in the deodorization process, and the normal use of adjacent deodorization components is not affected during the replacement of activated carbon, and the replacement is realized without stopping the machine, thereby realizing the continuous purification demand of tail water.

[0054] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A circulating water filtration device for fish farming, characterized in that: include: A filtration and sterilization assembly, comprising a box body, a water inlet pipe is fixedly connected to the box body, a sewage discharge mechanism for collecting and discharging tail water sediment is arranged inside the box body, a filtering mechanism for filtering tail water is arranged on the top of the sewage discharge mechanism, a stirring and scraping mechanism rotatably connected to the box body is arranged between the filtering mechanism and the sewage discharge mechanism, the stirring and scraping mechanism is used to aerate, sterilize, mix and scrape the tail water, an air pipe 1 for supplying air to the stirring and scraping mechanism and a liquid supply pipe for providing flocculant are arranged on the top of the box body, an air pipe 2 for supplying air to the stirring and scraping mechanism is arranged on the top of the box body, and the filtering mechanism is coaxially arranged with the sewage discharge mechanism and the stirring and scraping mechanism; The stirring and scraping mechanism includes a driving tube movably sleeved with the bottom of the box body, an isolation tube rotatably connected to the top of the driving tube is fixedly connected to the inner side wall of the top of the box body, a cross bar located at the top of the filtering mechanism is fixedly connected to the outer ring of the isolation tube, a scraper 1 for the top of the filtering mechanism and a scraper 2 located at the bottom of the scraper 1 are fixedly connected to the cross bar, a brush plate with a circular arc structure at the top is fixedly connected to the top of the cross bar, an isolation box is fixedly connected to the top of the driving tube, an extension tube connected to the top of the isolation box is fixedly connected, and the top of the extension tube is rotatably sleeved with the liquid supply tube, an isolation sleeve connected to the inner ring of the driving tube is fixedly sleeved at the bottom of the isolation box, a nozzle 1 connected to the isolation sleeve is fixedly connected, and the nozzle 1 is fixedly sleeved with the isolation box and the isolation tube, the isolation box is fixedly connected to a nozzle 2 fixedly sleeved with the isolation tube, the isolation tube is fixedly sleeved with a nozzle 3, and one end of the driving tube extending out of the bottom of the box body is connected to a power mechanism driving it to rotate; The deodorizing assembly comprises a deodorizing box, the deodorizing box is connected with a conveying pipe connected with the box body, a bearing mechanism is fixedly connected inside the deodorizing box, the top of the bearing mechanism is detachably connected with the deodorizing mechanism, and one side of the deodorizing mechanism abuts against a discharge groove fixedly connected with the deodorizing box.

2. A circulating water filtration device for fish farming as claimed in claim 1, characterized in that: The power mechanism includes a gear ring fixedly sleeved with the outer ring at the bottom of the driving tube, a gear meshing with one side of the gear ring, a rotating shaft fixedly sleeved with the gear, a motor fixedly connected to the box body is fixedly connected to the top of the rotating shaft, air pipe 1 is distributed between the inner ring of the isolation tube and the outer ring of the extension tube, a liquid storage tank is fixedly connected to the side of the liquid supply tube away from the box body, and air pipe 2 rotates with the inner ring at the bottom of the driving tube.

3. A circulating water filtration device for fish farming as claimed in claim 1, characterized in that: The sewage discharge mechanism includes a collecting hopper arranged at the bottom of the water inlet pipe and fixedly connected to the box body, a sedimentation pipe fixedly connected to the bottom of the collecting hopper and the bottom of the box body, a movable plate slidably connected to the inner circle of the sedimentation pipe and the outer circle of the driving pipe, an air bag fixedly connected to the bottom of the movable plate and the box body, and a mud discharge pipe fixedly connected to the sedimentation pipe.

4. A circulating water filtration device for fish farming as claimed in claim 1, characterized in that: The filtering mechanism includes a concentrating plate arranged on the top of the water inlet pipe and fixedly connected to the box body, a riser pipe fixedly connected to the top of the concentrating plate, a filter plate with an annular structure fixedly connected to the outer circle of the riser pipe, a guide plate fixedly connected to the outer circle of the filter plate fixedly connected to the box body, and a slag discharge trough fixedly connected to the box body.

5. A circulating water filtration device for fish farming as claimed in claim 4, characterized in that: The end of the conveying pipe extending into the box body is located at the top of the concentrating plate, the bottom of the scraper plate 1 conflicts with the top of the riser pipe, the top of the scraper plate 2 conflicts with the top of the filter plate and the guide plate, the bottom of the guide plate is fixedly connected to a sterilization lamp 1 with an annular structure, the top of the box body is fixedly connected to a sterilization lamp 2 with an annular structure, and the bottom of the sterilization lamp 2 conflicts with the top of the brush plate.

6. A circulating water filtration device for fish farming as claimed in claim 1, characterized in that: The supporting mechanism includes a partition fixedly connected to the deodorizing box, a drainage channel distributed in sequence along the length direction is opened on the top of the partition, an inwardly recessed slide groove is opened on one side of the top opening of the drainage channel, a closing plate 1 is slidably connected inside the slide groove, one end of the closing plate 1 extending into the slide groove is fixedly connected to a spring fixedly connected to the inner side wall of the end of the slide groove, and a block docking with the deodorizing mechanism is fixedly connected to the top of the closing plate 1.

7. A circulating water filtration device for fish farming as claimed in claim 1, characterized in that: The deodorizing mechanism comprises a storage box, a partition plate arranged in a vertical direction is fixedly connected inside the storage box, an adsorption unit is arranged on one side of the partition plate, an overflow pipe located on the storage box is arranged between the adsorption unit and an adjacent discharge trough, a water inlet located at the bottom of the storage box is opened below the side of the adsorption unit away from the adjacent discharge trough, the adsorption unit is slidably connected to a closing unit 1 connected to the partition plate, and a closing unit 2 for the water inlet and sealing is fixedly connected to the bottom of the closing unit 1.

8. A circulating water filtration device for fish farming as claimed in claim 7, characterized in that: The adsorption unit includes two groups of material storage plates fixedly connected to the storage box, a material storage space is formed between the two groups of material storage plates, the space between the two groups of material storage plates is filled with activated carbon, a material discharge port located between the two groups of material storage plates is opened on the top of the storage box, a cover plate is installed at the opening of the material discharge port, and the material storage plate is provided with a liquid inlet channel arranged in sequence along its length direction.

9. A circulating water filtration device for fish farming as claimed in claim 7, characterized in that: The closed unit 1 includes a deflection tube rotatably sleeved with the storage box, and the deflection tube is located on the side of the partition plate away from the adsorption unit, one end of the deflection tube extending out of the storage box is fixedly connected to an L-shaped lap plate, one end of the deflection tube extending into the interior of the storage box is threadedly sleeved with a movable rod, and the other end of the movable rod is fixedly connected to a U-shaped push-pull frame slidably sleeved with the partition plate, two groups of adjustment plates distributed on both sides of the adsorption unit are arranged on the side of the partition plate away from the deflection tube, and the adsorption unit is slidably connected to the adjustment plate, the adjustment plate is fixedly connected to the push-pull frame, and the adjustment plate is provided with two liquid inlet channels distributed sequentially along its length direction.

10. A circulating water filtration device for fish farming as claimed in claim 7, characterized in that: The second closed unit includes a pull rod fixed to the first closed unit, and the bottom of the pull rod is slidably connected to a driven plate slidably connected to the bottom of the storage box. The driven plate slides along the width direction of the storage box, and the top of the driven plate is provided with an extrusion groove which is inclined and slidably connected to the bottom of the pull rod. The bottom of the driven plate is provided with an extension channel which passes through the bottom of the storage box, and the extension channel is slidably connected to a connecting plate fixed to the driven plate. An installation groove located at the bottom of the storage box is provided on one side of the bottom of the extension channel, and the installation groove is slidably connected to a second closed plate for sealing the water inlet, and the second closed plate is fixed to the connecting plate, and a card slot for docking with the supporting mechanism is provided at the bottom of the second closed plate.

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