A pretreatment device and a breeding water circulating treatment system

Abstract

The utility model discloses a kind of pretreatment device and aquaculture water circulation treatment system, pretreatment device is configured to be connected in aquaculture pond and microfilter, it include: shell, stirring subassembly, salvage subassembly and sterilization subassembly, shell inside hollow, and can be respectively communicated with aquaculture pond and microfilter, stirring subassembly includes at least one stirring paddle, stirring paddle rotates and is built into shell, for stirring the temporary storage liquid in shell, salvage subassembly includes at least one salvage piece, built into shell, and connect in shell, and salvage piece can rotate relative to shell, for salvaging the floating object in the temporary storage liquid in shell, sterilization subassembly is relatively set to temporary storage liquid, and connect in the inner wall of shell.The utility model can effectively solve when feeding, pool cleaning etc. Operation will instantaneously discharge high concentration, contain a large amount of solid waste wastewater to make to microfilter filter screen cause instantaneous impact load, resulting in poor wastewater treatment effect technical problem.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture water treatment technology, specifically to a pretreatment device and an aquaculture water circulation treatment system. Background Technology

[0002] In aquaculture systems, biological filters can effectively reduce harmful wastes such as ammonia nitrogen and nitrite in circulating water.

[0003] For example, Chinese utility model patent publication number CN221104509U, entitled "A Recirculating Aquaculture Water Treatment Device," describes a device comprising an aquaculture pond. The bottom of the pond is connected to a microfilter via a pipe. The microfilter is also connected to a protein skimmer via a pipe. The protein skimmer is further connected to an autotrophic nitrification device via a pipe. The bottom of the autotrophic nitrification device is connected to an autotrophic denitrification device via a pipe. The autotrophic denitrification device is also connected to the top of the aquaculture pond via a pipe. This device utilizes specific nitrifying and denitrifying bacteria to achieve efficient nitrogen removal and prevent nitrite accumulation. Simultaneously, the aquaculture water can be recycled, improving water resource utilization efficiency.

[0004] Because the microfilter is directly connected to the aquaculture pond, it will discharge high-concentration wastewater containing a large amount of solid waste instantaneously during operations such as feeding and pond cleaning. This will cause an instantaneous impact load on the microfilter screen, resulting in poor wastewater treatment effect. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a pretreatment device and an aquaculture water circulation treatment system to solve the technical problem in the prior art that high-concentration wastewater containing a large amount of solid waste is discharged instantaneously during feeding, pond cleaning and other operations, which causes instantaneous impact load on the microfilter screen and results in poor wastewater treatment effect.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a pretreatment device configured to be connected to an aquaculture pond and a microfilter, comprising: The shell is hollow inside and can be connected to both the aquaculture pond and the microfilter. A stirring assembly includes at least one stirring blade, which is rotatably built into the housing for stirring a temporary liquid within the housing; A salvage assembly, including at least one salvage component, is built into and connected to the housing, and the salvage component is rotatable relative to the housing for salvaging floating objects in a temporary storage fluid within the housing; and The sterilization component is positioned relative to the temporary storage liquid and is connected to the inner wall of the housing.

[0007] In some embodiments, the stirring assembly further includes a drive motor and a rotating spindle. The fixed end of the drive motor is connected to the housing, and the rotating spindle is rotatably connected to the housing. One end of the rotating spindle is connected to the stirring paddle, and the other end is connected to the output shaft of the drive motor.

[0008] In some embodiments, the retrieval component includes a retrieval rod, which is spiral-shaped, with one end connected to the rotating main shaft and the other end extending in a direction away from the rotating main shaft.

[0009] In some embodiments, the salvage assembly further includes at least one rotating bracket, the rotating bracket being T-shaped and including a first connecting rod and a second connecting rod, one end of the first connecting rod being connected to the rotating main shaft and the other end being slidably connected to the circumferential inner wall of the housing, one end of the second connecting rod being connected to the first connecting rod and the other end extending axially along the rotating main shaft, and the salvage rod being connected to the second connecting rod.

[0010] In some embodiments, the retrieval rod is detachably connected to the second connecting rod.

[0011] In some embodiments, the second connecting rod has a plurality of slots along its length, and the retrieval component further includes a locking block, one end of which is connected to the retrieval rod and the other end of which can engage with the slots.

[0012] In some embodiments, the second connecting rod has a threaded hole communicating with the slot. The retrieval component also includes a movable block and a screw. The movable block is slidably built into the slot and can abut against the slot. One end of the screw is threaded to the threaded hole and rotatably connected to the movable block. The screw rotates around its axis to drive the movable block to slide relative to the slot and clamp or release the slot.

[0013] In some embodiments, the salvage assembly further includes a rolling part connected to the first connecting rod and movably abutting against the circumferential inner wall of the housing.

[0014] In some embodiments, the salvage assembly further includes an elastic portion disposed between the rolling portion and the second connecting rod, and connected to both the rolling portion and the second connecting rod.

[0015] Secondly, this utility model also provides an aquaculture water circulation treatment system, including an aquaculture pond, a microfilter, a pretreatment device as described in any one of the above, a protein separator, an autotrophic nitrification device, and an autotrophic denitrification device. The shell is disposed between the aquaculture pond and the microfilter and is connected to both the aquaculture pond and the microfilter. The protein separator is connected to the microfilter, the autotrophic nitrification device is connected to the protein separator, and the autotrophic denitrification device is connected to the autotrophic nitrification device.

[0016] Compared with the prior art, the beneficial effects of the pretreatment device and aquaculture water circulation treatment system provided by this utility model include: a shell is provided between the aquaculture pond and the microfilter, the shell is hollow inside and can be connected to the aquaculture pond and the microfilter respectively for storing temporary liquid; at least one stirring paddle is rotatably built into the shell for stirring the temporary liquid inside the shell; at least one retrieval component can rotate relative to the shell for retrieving floating objects in the temporary liquid inside the shell; and a sterilization component is arranged relative to the temporary liquid and connected to the inner wall of the shell for improving the sterilization effect. Compared to existing technologies, by installing a shell between the aquaculture pond and the microfilter to store the temporary liquid, the wastewater in the aquaculture pond can enter the microfilter smoothly, avoiding instantaneous impact load on the microfilter screen. At the same time, the shell is equipped with a stirring paddle and at least one scooping component to prevent the accumulation or blockage of sediment. The temporary liquid is sterilized using a sterilization component, which can improve the wastewater treatment effect of aquaculture water. This can solve the technical problem in existing technologies where high-concentration wastewater containing a large amount of solid waste is discharged instantaneously during feeding, pond cleaning and other operations, causing instantaneous impact load on the microfilter screen and resulting in poor wastewater treatment effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a pretreatment device provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the first connecting rod, the elastic part, and the rolling part connected according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the second connecting rod connected to the salvage assembly according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the sterilization component connected to the housing according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a pretreatment device and an aquaculture water circulation treatment system provided in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: Aquaculture pond 100; microfilter 200; shell 300; stirring assembly 400; stirring paddle 410; drive motor 420; rotating main shaft 430; retrieval assembly 500; retrieval part 510; retrieval rod 511; locking block 512; movable block 513; screw 514; rotating bracket 520; first connecting rod 521; second connecting rod 522; rolling part 530; elastic part 540; protein separator 600; autotrophic nitrification device 700; autotrophic denitrification device 800; sterilization assembly 900. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To address the technical problem of poor wastewater treatment caused by the instantaneous discharge of high-concentration wastewater containing large amounts of solid waste during feeding and pond cleaning operations, which creates a momentary impact load on the microfilter 200 screen, this invention provides a pretreatment device and an aquaculture water circulation treatment system. This system utilizes a housing 300 between the aquaculture pond 100 and the microfilter 200 to store temporary liquid, allowing wastewater from the pond 100 to flow smoothly into the microfilter 200, avoiding a momentary impact load on the screen. The housing 300 is equipped with a stirring paddle 410 and at least one scooping component 510 to prevent sediment accumulation or blockage. Furthermore, a sterilization component 900 sterilizes the temporary liquid, improving the overall wastewater treatment efficiency.

[0021] Please see Figures 1 to 3 , Figure 1 , 4 This is a schematic diagram of a pretreatment device and an aquaculture water circulation treatment system according to an embodiment of the present invention. The pretreatment device is configured to be connected to an aquaculture pond 100 and a microfilter 200, and includes: a shell 300, a stirring component 400, a scooping component 500, and a sterilization component 900. The shell 300 is hollow inside and can be connected to the aquaculture pond 100 and the microfilter 200 respectively. The stirring component 400 includes at least one stirring paddle 410, which is rotatably built into the shell 300 and used to stir the temporary liquid inside the shell 300. The scooping component 500 includes at least one scooping member 510, which is built into the shell 300 and connected to the shell 300. The scooping member 510 can rotate relative to the shell 300 and is used to scoop floating objects in the temporary liquid inside the shell 300. The sterilization component 900 is disposed relative to the temporary liquid and connected to the inner wall of the shell 300.

[0022] Compared to existing technologies, this device, by setting up a housing 300 for storing temporary liquid between the aquaculture pond 100 and the microfilter 200, allows wastewater from the aquaculture pond 100 to enter the microfilter 200 smoothly, avoiding instantaneous impact load on the microfilter 200's filter screen. Simultaneously, the housing 300 is equipped with a stirring paddle 410 and at least one scooping component 510 to prevent the accumulation or clogging of sediment. Furthermore, the sterilization component 900 sterilizes the temporary liquid, improving the wastewater treatment effect. This solves the technical problem in existing technologies where high-concentration wastewater containing large amounts of solid waste is instantaneously discharged during feeding, pond cleaning, and other operations, causing instantaneous impact load on the microfilter 200's filter screen and resulting in poor wastewater treatment.

[0023] Furthermore, the housing 300 is connected to the aquaculture pond 100 and the microfilter 200 through a connecting valve, and the suction force generated by the pump body is used to make the aquaculture wastewater enter the housing 300 and the microfilter 200 sequentially along a designated route. The microfilter 200 is a common and readily available device on the market and is a conventional setting known to those skilled in the art, so it will not be described in detail here.

[0024] In some embodiments, the sterilization component 900 is a commercially available and readily procurable ultraviolet germicidal lamp. The ultraviolet germicidal lamp is positioned relative to the temporary storage liquid and connected to the top inner wall of the housing 300. This ultraviolet germicidal lamp is a conventional configuration known to those skilled in the art and will not be described in detail here.

[0025] In this embodiment, as Figure 1 As shown, the stirring assembly 400 also includes a drive motor 420 and a rotating main shaft 430. The fixed end of the drive motor 420 is connected to the housing 300, and the rotating main shaft 430 is rotatably connected to the housing 300. One end of the rotating main shaft 430 is connected to the stirring paddle 410, and the other end is connected to the output shaft of the drive motor 420.

[0026] By setting a drive motor 420, at least one stirring paddle 410 can be driven to rotate relative to the housing 300. Here, the main shaft 430 is used to connect the output shaft of the drive motor 420 with the stirring paddle 410.

[0027] Furthermore, the agitator 410 here is a multi-blade structure that is common in the market and easy to purchase, and there are two agitators 410, which are spaced apart along the length of the rotating main shaft 430.

[0028] In one embodiment, such as Figure 1 As shown, the salvage component 510 includes a salvage rod 511, which is spiral in shape. One end of the salvage rod 511 is connected to the rotating main shaft 430, and the other end extends in a direction away from the rotating main shaft 430.

[0029] By setting a spiral-shaped retrieval rod 511, the contact area between the retrieval structure and the temporary storage liquid can be increased, thereby improving the retrieval efficiency of the retrieval structure for floating objects and avoiding blockage caused by large particles of dirt in the temporary storage liquid.

[0030] Furthermore, the retrieval rod 511 here is made of a hard, corrosion-resistant plastic material that is common and readily available on the market. It is not only lightweight but also low in cost. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0031] In one embodiment, such as Figures 1 to 3 As shown, the salvage assembly 500 also includes at least one rotating bracket 520. The rotating bracket 520 is T-shaped and includes a first connecting rod 521 and a second connecting rod 522. One end of the first connecting rod 521 is connected to the rotating main shaft 430 and the other end is slidably connected to the circumferential inner wall of the housing 300. One end of the second connecting rod 522 is connected to the first connecting rod 521 and the other end extends axially along the rotating main shaft 430. The salvage rod 511 is connected to the second connecting rod 522.

[0032] By setting a T-shaped rotating bracket 520 to connect the retrieval component 510 to the mixing assembly 400, and using the drive motor 420 to synchronously drive the retrieval rod 511 to rotate relative to the housing 300, the design cost is reduced.

[0033] Furthermore, the first connecting rod 521 of the rotating bracket 520 is connected to the rotating main shaft 430 and is slidably connected to the housing 300 to achieve a stable connection between the retrieval rod 511 and the housing 300.

[0034] In one embodiment, such as Figure 1 , Figure 2 As shown, the salvage assembly 500 also includes a rolling part 530, which is connected to the first connecting rod 521 and moves against the circumferential inner wall of the housing 300.

[0035] By providing a rolling part 530, the sliding friction between the second connecting rod 522 and the inner wall of the housing 300 is reduced by utilizing the rotation of the rolling part 530 relative to the second connecting rod 522 and its movable contact with the inner wall of the housing 300.

[0036] Furthermore, the rolling part 530 here is a pulley that is common and readily available on the market. The fixed end of the pulley is connected to the second connecting rod 522, and the rolling end abuts against the circumferential inner wall of the housing 300. This will not be described in detail here.

[0037] In one embodiment, such as Figure 2As shown, the salvage assembly 500 also includes an elastic part 540, which is disposed between the rolling part 530 and the second connecting rod 522, and is connected to both the rolling part 530 and the second connecting rod 522.

[0038] By providing the elastic part 540, an elastic restoring force can be generated, so that the rolling part 530 is always in contact with the circumferential inner wall of the housing 300, thereby improving the stability of the device operation.

[0039] Furthermore, the elastic part 540 here is a spring that is common and readily available on the market, and will not be described in detail here.

[0040] In addition, in some embodiments, the rotating spindle 430, rotating bracket 520, rolling part 530 and elastic part 540 are all made of corrosion-resistant materials. This is a conventional arrangement known to those skilled in the art and will not be described in detail here.

[0041] In one embodiment, the retrieval rod 511 is detachably connected to the second connecting rod 522.

[0042] By providing a retrieval rod 511 that can be detachably connected to the second link 522, users can easily clean or replace the retrieval rod 511.

[0043] In one embodiment, such as Figure 1 , Figure 3 As shown, the second connecting rod 522 has multiple slots along its length, and the retrieval component 510 also includes a locking block 512. One end of the locking block 512 is connected to the retrieval rod 511, and the other end can be engaged with the slots.

[0044] By utilizing the cooperation between the locking block 512 and the locking slot, a detachable connection can be achieved between the retrieval rod 511 and the second connecting rod 522.

[0045] In one embodiment, such as Figure 3 As shown, the second connecting rod 522 has a threaded hole that communicates with the slot. The retrieval component 510 also includes a movable block 513 and a screw 514. The movable block 513 is slidably built into the slot and can abut against the slot block 512. One end of the screw 514 is threaded to the threaded hole and is rotatably connected to the movable block 513. The screw 514 rotates around its axis to drive the movable block 513 to slide relative to the slot and to clamp or release the slot block 512.

[0046] By adjusting the depth to which the screw 514 is screwed into the threaded hole, the movable block 513 can be pushed to slide relative to the inner wall of the slot, thereby clamping or releasing the block 512.

[0047] Furthermore, the movable block 513 here can increase the contact area between the screw 514 and the locking block 512, thereby improving the stability of the locking block 512 connected to the slot.

[0048] In some implementations, the screw 514 can also slide axially relative to the threaded hole through an elastic snap-fit ​​structure, thereby fixing the snap-fit ​​block 512. This will not be elaborated further here.

[0049] like Figure 5 As shown, this embodiment also provides an aquaculture water circulation treatment system, characterized in that it includes an aquaculture pond 100, a microfilter 200, a pretreatment device, a protein separator 600, an autotrophic nitrification device 700, and an autotrophic denitrification device 800. The shell 300 is disposed between the aquaculture pond 100 and the microfilter 200 and is connected to both the aquaculture pond 100 and the microfilter 200. The protein separator 600 is connected to the microfilter 200, the autotrophic nitrification device 700 is connected to the protein separator 600, and the autotrophic denitrification device 800 is connected to the autotrophic nitrification device 700.

[0050] By setting up a housing 300 for storing temporary liquid between the aquaculture tank 100 and the microfilter 200, the wastewater in the aquaculture tank 100 can enter the microfilter 200 smoothly, avoiding instantaneous impact load on the filter screen of the microfilter 200. At the same time, the housing 300 is equipped with a stirring paddle 410 and at least one scooping component 510 to prevent the accumulation or blockage of sediment. The temporary liquid is sterilized by the sterilization component 900, which can improve the effect of aquaculture wastewater treatment.

[0051] Furthermore, the autotrophic nitrification device 700 is also equipped with a nitrification carrier, and the autotrophic denitrification device 800 is also equipped with denitrification filter media, thus forming a system of aquaculture pond 100 + microfilter 200 + protein separator 600 + autotrophic nitrification device 700 (nitrification carrier + aeration disc) + autotrophic denitrification device 800 (denitrification filter media + water distributor) + return pipe. For reference, please refer to Chinese utility model patent with publication number CN221104509U, entitled "Aquaculture Water Circulation Treatment Device", which will not be elaborated here.

[0052] To better understand this utility model, the following is combined with... Figures 1 to 5 The technical solution of this utility model is described in detail below: A housing 300 is provided between the aquaculture pond 100 and the microfilter 200. The housing 300 is hollow and can be connected to both the aquaculture pond 100 and the microfilter 200 to store temporary liquid. At least one stirring paddle 410 is rotatably built into the housing 300 to stir the temporary liquid inside the housing 300. At least one retrieval component 510 can rotate relative to the housing 300 to retrieve floating objects in the temporary liquid inside the housing 300. A sterilization component 900 is positioned relative to the temporary liquid and connected to the inner wall of the housing 300 to improve the sterilization effect. Compared to existing technologies, by setting up a housing 300 for storing temporary liquid between the aquaculture pond 100 and the microfilter 200, the wastewater in the aquaculture pond 100 can enter the microfilter 200 smoothly, avoiding instantaneous impact load on the filter screen of the microfilter 200. At the same time, the housing 300 is equipped with a stirring paddle 410 and at least one scooping component 510 to prevent the accumulation or blockage of sediments. The temporary liquid is sterilized by the sterilization component 900, which can improve the effect of aquaculture wastewater treatment.

[0053] Furthermore, the aquaculture wastewater in the aquaculture pond 100 first enters the shell 300 for temporary storage. Then, under the rotation of the agitator 410, the formation of large particles of sediment is prevented. The scooping component 510, which rotates along with the agitator 410, can scoop up floating objects in the temporary storage liquid to prevent clogging. Finally, under the action of the ultraviolet sterilization lamp, the growth of bacteria is prevented. The shell 300 can act as a buffer container to receive the peak water flow that is discharged instantaneously during feeding, pond cleaning and other operations, so that it enters the microfilter 200 smoothly and evenly, avoiding instantaneous impact load on the filter screen of the microfilter 200, which helps to protect the equipment and stabilize the water quality of the subsequent treatment units.

[0054] Furthermore, by adjusting the depth to which the screw 514 is screwed into the threaded hole, the user can adjust the mating structure between the locking block 512 and the slot, thereby facilitating the cleaning or replacement of the salvage arm. This design is not only simple in structure but also low in cost.

[0055] This application, through the aforementioned structure, can solve the technical problem in the prior art where high-concentration wastewater containing a large amount of solid waste is instantaneously discharged during operations such as feeding and pond cleaning, causing instantaneous impact load on the microfilter 200 filter screen and resulting in poor wastewater treatment effect.

[0056] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A pretreatment device configured to be connected to an aquaculture pond and a microfilter, characterized in that, include: The shell is hollow inside and can be connected to both the aquaculture pond and the microfilter. A stirring assembly includes at least one stirring blade, which is rotatably built into the housing for stirring a temporary liquid within the housing; A salvage assembly, including at least one salvage component, is built into and connected to the housing, and the salvage component is rotatable relative to the housing for salvaging floating objects in a temporary storage fluid within the housing; and The sterilization component is positioned relative to the temporary storage liquid and is connected to the inner wall of the housing.

2. The pretreatment apparatus according to claim 1, characterized in that, The stirring assembly also includes a drive motor and a rotating main shaft. The fixed end of the drive motor is connected to the housing, and the rotating main shaft is rotatably connected to the housing. One end of the rotating main shaft is connected to the stirring paddle, and the other end is connected to the output shaft of the drive motor.

3. The pretreatment apparatus according to claim 2, characterized in that, The salvage component includes a salvage rod, which is spiral-shaped. One end of the salvage rod is connected to the rotating main shaft, and the other end extends in a direction away from the rotating main shaft.

4. The pretreatment apparatus according to claim 3, characterized in that, The salvage assembly further includes at least one rotating bracket, which is T-shaped and includes a first connecting rod and a second connecting rod. One end of the first connecting rod is connected to the rotating main shaft, and the other end is slidably connected to the circumferential inner wall of the housing. One end of the second connecting rod is connected to the first connecting rod, and the other end extends axially along the rotating main shaft. The salvage rod is connected to the second connecting rod.

5. The pretreatment apparatus according to claim 4, characterized in that, The salvage rod is detachably connected to the second connecting rod.

6. The pretreatment apparatus according to claim 4, characterized in that, The second connecting rod has multiple slots along its length, and the retrieval component also includes a locking block, one end of which is connected to the retrieval rod and the other end of which can engage with the slots.

7. The pretreatment apparatus according to claim 6, characterized in that, The second connecting rod has a threaded hole that communicates with the slot. The retrieval component also includes a movable block and a screw. The movable block is slidably built into the slot and can abut against the slot. One end of the screw is threaded to the threaded hole and rotatably connected to the movable block. The screw rotates around its axis to drive the movable block to slide relative to the slot and clamp or release the slot.

8. The pretreatment apparatus according to claim 4, characterized in that, The salvage assembly also includes a rolling part, which is connected to the first connecting rod and movably abuts against the circumferential inner wall of the housing.

9. The pretreatment apparatus according to claim 8, characterized in that, The salvage assembly also includes an elastic part, which is disposed between the rolling part and the second connecting rod, and is connected to both the rolling part and the second connecting rod.

10. A water recycling system for aquaculture, characterized in that, The device includes an aquaculture pond, a microfilter, a pretreatment device as described in any one of claims 1-9, a protein separator, an autotrophic nitrification device, and an autotrophic denitrification device. The shell is disposed between the aquaculture pond and the microfilter and is connected to both the aquaculture pond and the microfilter. The protein separator is connected to the microfilter. The autotrophic nitrification device is connected to the protein separator. The autotrophic denitrification device is connected to the autotrophic nitrification device.

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