Advanced treatment integrated equipment for aquaculture wastewater

Abstract

The invention relates to the technical field of aquaculture wastewater treatment, in particular to advanced treatment integrated equipment for aquaculture wastewater. Comprising a vertically mounted pretreatment unit, the bottom of the pretreatment unit is a liquid inlet end, an anaerobic treatment unit is mounted at the top of the pretreatment unit, a plurality of pipelines are mounted on the anaerobic treatment unit, wastewater subjected to anaerobic treatment flows out of the pipelines, and a plurality of groups of modular treatment process chains are arranged on the side wall of the pretreatment unit. The modular treatment process chain comprises a plurality of treatment devices, the liquid inlet ends and the liquid outlet ends of the plurality of treatment devices are simultaneously connected with the corresponding pipelines, and flow guide mechanisms are arranged at the joints of the treatment devices and the pipelines and can adjust the flow direction of the wastewater. According to the equipment, each treatment unit is modularly designed, different treatment modules can be mounted according to different wastewater, and each treatment module can be overhauled or replaced under the condition of non-stop, so that the practicability of the equipment is improved.

Description

Technical Field

[0001] This invention patent relates to the technical field of aquaculture wastewater treatment. Specifically, it relates to an integrated device for advanced treatment of aquaculture wastewater. Background Art

[0002] Integrated treatment devices for aquaculture wastewater mostly adopt a fixed process chain integrated design, and their treatment units (such as grille filtration, anaerobic treatment, aerobic treatment, etc.) are rigidly connected by welding or bolts. For the treatment of different aquaculture wastewaters, different treatment units need to be specifically designed according to the ammonia nitrogen and high organic matter load of the aquaculture wastewater. For example, pig farm wastewater generally shows a high ammonia nitrogen (800 - 2200 mg / L) and high organic matter (CODcr 13000 - 17000 mg / L) load. When treating pig farm wastewater, in addition to anaerobic and aerobic treatment units, an enhanced anoxic unit is required to achieve nitrification and denitrification for nitrogen removal. For example, chicken farm wastewater contains high concentrations of suspended solids and pathogens, so an efficient solid-liquid separation and advanced disinfection module need to be set up. Another example is fish farm wastewater, where the organic matter concentration (CODcr 500 - 2000 mg / L) in the wastewater is relatively low, but the dissolved oxygen demand is high, and there are residual antibiotics and feed additives. Therefore, an oxidation unit needs to be set up to degrade antibiotics and additives, and at the same time, an ecological wetland unit needs to be constructed to use aquatic plants in the ecological wetland unit to absorb nitrogen and phosphorus.

[0003] The treatment devices of the prior art are all treatment processes designed for specific wastewater situations. For example, an integrated device for advanced treatment of pig farm wastewater disclosed in a Chinese invention patent (CN117185589B) has an anoxic treatment tank, an aerobic treatment tank, a flocculation sedimentation tank, an ultraviolet disinfection tank, a filtration adsorption tank, and an ecological wetland tank arranged in sequence along the water flow direction on the two liquid outlet pipes of the anaerobic treatment unit. It achieves the effects of short-cut nitrification and denitrification, simultaneous nitrification and denitrification, and new biological nitrogen removal for biological phosphorus removal, making the finally discharged sewage meet the standards. Another example is an integrated treatment device for livestock and poultry wastewater disclosed in a Chinese invention patent (CN206512062U). This device has a red mud adsorption device for wastewater with a high heavy metal content, and uses active components such as iron oxide and calcium oxide contained in it to treat heavy metals in the wastewater.

[0004] Among the above-disclosed advanced treatment devices for wastewater, although the finally discharged wastewater can meet the standards, each treatment device can only treat aquaculture wastewater under specific circumstances and cannot dynamically adjust the process chain according to the differences in aquaculture types. To solve this problem, the applicant has invented an integrated device for advanced treatment of aquaculture wastewater that can adjust the treatment process according to the specific situation of aquaculture wastewater. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated device for advanced treatment of aquaculture wastewater. The device has a modular design for each treatment unit, can install different treatment modules according to different wastewaters, and can repair or replace each treatment module without shutting down the operation, improving the practicability of the device.

[0006] The present invention is implemented as follows. An integrated device for advanced treatment of aquaculture wastewater includes a vertically installed pretreatment unit. The bottom of the pretreatment unit is the liquid inlet end, and an anaerobic treatment unit is installed at the top of the pretreatment unit. A plurality of pipelines are installed on the anaerobic treatment unit, and the wastewater after anaerobic treatment flows out from the pipelines. A plurality of groups of modular treatment process chains are provided on the side wall of the pretreatment unit. The modular treatment process chain includes a plurality of treatment devices. The liquid inlet ends and liquid outlet ends of the plurality of treatment devices are simultaneously connected to the corresponding pipelines, and a diversion mechanism is provided at the connection between the treatment device and the pipeline. The diversion mechanism can adjust the flow direction of the wastewater.

[0007] Further, the pipeline includes a main pipe one and a plurality of bypass pipelines. The bypass pipelines correspond to the treatment devices one by one. The liquid inlet end of the main pipe one is connected to the liquid outlet end of the anaerobic treatment unit, and the liquid outlet end of the main pipe one is connected to the bypass pipelines. A plurality of bypass pipelines are connected in series with the diversion mechanism;

[0008] The bypass pipeline includes an inlet pipe one, an outer connecting pipe, and an outlet pipe one; both ends of the outer connecting pipe are respectively connected to two diversion mechanisms, and the inlet pipe one and the outlet pipe one are respectively connected to two diversion mechanisms and kept in a communicating state; the liquid inlet end and the liquid outlet end of the treatment device are respectively connected to two diversion mechanisms;

[0009] The diversion mechanism includes a spherical shell and a sphere; the sphere is rotatably arranged in the spherical shell, and an L-shaped channel is opened in the sphere. One end of the L-shaped channel is a free end, which can be respectively communicated with the outer connecting pipe and the treatment device when the sphere rotates;

[0010] A driving unit is arranged between two diversion mechanisms. The driving unit can simultaneously drive the two diversion mechanisms to rotate and can adjust the communication state between the pipeline and the treatment device.

[0011] Further, the inlet pipe one and the outlet pipe one of two adjacent bypass pipelines are detachably connected, and the bypass pipeline close to the main pipe one is detachably connected to the main pipe one.

[0012] Further, an annular groove is formed on the outer wall of the connection between the first liquid outlet pipe and the first main pipe. A first spring and a limiting ring are sleeved in the annular groove. Two ends of the first spring of the flow-around pipeline are respectively fixedly connected with the end of the annular groove and the limiting ring. A plurality of through grooves are also formed on the side wall of the connection between the first main pipe and the first liquid outlet pipe, and limiting balls are arranged in the through grooves. The outer diameter of the connection of the first liquid inlet pipe matches the inner diameter of the connection of the first liquid outlet pipe. A limiting groove corresponding to the through groove is formed on the outer side wall of the first liquid inlet pipe. When the first liquid inlet pipe is connected to the first liquid outlet pipe, the limiting balls are simultaneously located in the through groove and the limiting groove, and the inner side wall of the limiting ring is in contact with the limiting balls.

[0013] Further, the liquid inlet end and the liquid outlet end of the treatment device are respectively detachably connected to the spherical shells of the two diversion mechanisms.

[0014] Further, the driving unit includes a servo motor, a transmission shaft, two transmission gears, two first bevel gears and two second bevel gears. The centers of the two first bevel gears are respectively fixedly connected with the end of the transmission shaft and the output end of the servo motor. The two first bevel gears are respectively meshed with the two second bevel gears. The two transmission gears are respectively fixedly sleeved on the transmission shaft and the output shaft of the servo motor, and the two transmission gears are meshed.

[0015] Further, the pipeline includes a second main pipe, a plurality of first connecting pipes and a plurality of second connecting pipes. One end of the second main pipe is connected to the water outlet end of the anaerobic treatment unit. The plurality of first connecting pipes and the plurality of second connecting pipes are both connected to the second main pipe and are alternately distributed.

[0016] A sealing unit is arranged at the connection between the second main pipe and the first connecting pipe and the second connecting pipe. The sealing unit includes a sealing plate and a second spring. One end of the second spring is fixedly connected with the inner side wall of the first connecting pipe, and the other end of the second spring is fixedly connected with the sealing plate. When the second spring is in a natural state, the sealing plate is in sealing contact with the end of the first connecting pipe.

[0017] A baffle is slidably arranged on the outer side wall of the bottom surface of the first connecting pipe. The baffle passes through the side wall of the second main pipe, and the top surface of the baffle is fixedly connected with the end of the sealing plate. When the sealing plate is attached to the inner side wall of the second main pipe, the baffle is horizontally placed in the second main pipe and blocks the second main pipe.

[0018] The treatment device includes a treatment unit, a second liquid inlet pipe and a second liquid outlet pipe. The liquid inlet end and the liquid outlet end of the treatment unit are respectively connected to the second liquid inlet pipe and the second liquid outlet pipe. The second liquid inlet pipe and the second liquid outlet pipe are respectively detachably connected to the first connecting pipe and the second connecting pipe. Thrust rods are arranged at the ends of the second liquid inlet pipe and the second liquid outlet pipe. When the second liquid inlet pipe is connected to the first connecting pipe, the thrust rod pushes the sealing plate to be attached to the inner side wall of the second main pipe.

[0019] Further, the pretreatment unit includes a pressurization cylinder, a wastewater pipe, a separation cylinder, a screw and a driving mechanism. The separation cylinder is vertically installed inside the pressurization cylinder. The bottom of the separation cylinder is connected to the wastewater pipe. A plurality of filter holes are formed in the side wall of the separation cylinder. The screw is fixedly installed on the outer side wall of the separation cylinder. The driving mechanism is installed on the pressurization cylinder and drives the separation cylinder to rotate. The top water outlet end of the pressurization cylinder is connected to the anaerobic treatment unit.

[0020] Further, the driving mechanism includes a driving motor, two rotating wheels and a power transmission belt. The driving motor is fixedly installed at the bottom of the pressurization cylinder. The two rotating wheels are respectively sleeved on the output end of the driving motor and the wastewater pipe. The power transmission belt is simultaneously sleeved on the two rotating wheels.

[0021] Further, the anaerobic treatment unit includes an anaerobic treatment tank, a reflux tank, a three-phase separator, a water outlet weir and a vent pipe. The bottom of the anaerobic treatment tank is connected to the top of the pressurization cylinder. The reflux tank is fixedly sleeved on the outer side wall of the anaerobic treatment tank. The bottom of the reflux tank is connected to the bottom of the anaerobic treatment tank through a pipeline. The tops of the reflux tank and the anaerobic treatment tank are open and flush. The water outlet weir is fixedly sleeved on the top of the reflux tank. The three-phase separator is a separator with an open bottom and an inverted conical shape. The bottom surface of the three-phase separator touches the water outlet weir and has a gap. The vent pipe is fixedly connected to the top of the three-phase separator.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The connection between the first liquid inlet pipe and the first liquid outlet pipe is set as a detachable connection. In this way, the staff can install different treatment devices according to the water quality of the aquaculture wastewater. At the same time, a diversion mechanism is arranged between the pipeline and the treatment device. One end of the L-shaped channel in the diversion mechanism is always connected to the pipeline, and the other end can be connected to the external connection pipe and the treatment device respectively when the sphere rotates. A driving unit is arranged between the two diversion mechanisms. This structure can drive the spheres of the two diversion mechanisms to rotate simultaneously through the driving unit, so as to adjust the connection state between the pipeline and the treatment device. In this way, the staff can repair each treatment device and replace the internal purification substances without stopping the operation of the equipment;

[0024] 2. The connection between the liquid inlet end and the liquid outlet end of the treatment device and the diversion mechanism is set to be detachable. In this way, the staff can directly replace and repair the entire treatment device without stopping the operation of the equipment. At the same time, different treatment units can also be installed on the pipeline;

[0025] 3. The pipeline is arranged to consist of a main pipe two and multiple connecting pipes. Elastic sealing units are provided at the positions where the connecting pipe one and the connecting pipe two are connected to the main pipe two. At the same time, a baffle is fixedly installed on the bottom surface of the sealing plate of the sealing unit at the connecting pipe one. When the sealing plate fits against the inner wall of the main pipe two, the baffle can block the main pipe two. In this way, when the treatment device is not connected at the connecting pipe, the sealing unit can block the side holes of the main pipe two, enabling the wastewater to flow along the main pipe two. When the treatment device is installed on the connecting pipe, it can push open the sealing mechanism, making the connecting pipe communicate with the main pipe two. At the same time, the baffle can also block the main pipe two, allowing the wastewater to enter the installed treatment device for treatment. This structure is not only convenient for disassembly but also does not require separate adjustment of the water flow direction.

[0026] 4. A separation cylinder is arranged inside the pressurizing cylinder. The separation cylinder is driven by a driving motor. Multiple filter holes are provided on the side wall of the separation cylinder. At the same time, a screw is fixedly installed on the outer side wall of the separation cylinder. When the driving motor drives the separation cylinder, it can not only filter the wastewater but also use this power to pressurize the pretreated wastewater and transport it to the anaerobic treatment tank. And the entire device only needs to use this part of the power to make the wastewater flow in the entire device and carry out purification treatment.

[0027] 5. Each treatment device is vertically arranged along the height direction of the pipeline, which can not only save floor space but also enable the wastewater to flow into each treatment device for treatment by relying on gravity after flowing out from the water outlet weir, reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of an integrated device for advanced treatment of aquaculture wastewater provided in Embodiment 1 of the present invention;

[0029] Figure 2 is Figure 1 the enlarged view of part A in

[0030] Figure 3 is the connection structural schematic diagram between the treatment device and the pipeline provided in Embodiment 1 of the present invention;

[0031] Figure 4 is the top view of an integrated device for advanced treatment of aquaculture wastewater at the position of the pressurizing cylinder provided in Embodiment 1 of the present invention;

[0032] Figure 5 is the overall structural schematic diagram of an integrated device for advanced treatment of aquaculture wastewater provided in Embodiment 3 of the present invention;

[0033] Figure 6 is Figure 5 the enlarged view of part A in

[0034] Figure 7 isFigure 5 Enlarged view at position B in

[0035] Figure 8 It is a schematic structural diagram of an integrated equipment for advanced treatment of aquaculture wastewater provided in Embodiment 3 of the present invention without the treatment device installed;

[0036] Figure 9 is Figure 8 Enlarged view at position A in

[0037] Figure 10 is Figure 8 Enlarged view at position B in

[0038] Figure 11 It is a schematic structural diagram of the treatment device provided in Embodiment 3 of the present invention.

[0039] Reference numerals involved in the above drawings:

[0040] 1, pressure cylinder; 2, reflux tank; 3, anaerobic treatment tank; 4, three-phase separator; 5, breather pipe; 6, effluent weir; 7, main pipe 1; 8, separation cylinder; 9, filter holes; 10, drive motor; 11, rotating wheel; 12, wastewater pipe; 13, power transmission belt; 14, ecological wetland unit; 15, filtration and adsorption unit; 16, ultraviolet disinfection unit; 17, flocculation and precipitation unit; 18, aerobic treatment unit; 19, anoxic treatment unit; 20, screw; 21, spring 1; 22, limit ring; 23, limit groove; 24, inlet pipe 1; 25, limit ball; 26, through groove; 27, annular groove; 28, spherical shell; 29, bevel gear 2; 30, external connecting pipe; 31, waterproof box; 32, outlet pipe 1; 33, sphere; 34, bevel gear 1; 35, servo motor; 36, slider; 37, transmission gear; 38, transmission shaft; 39, L-shaped channel; 40, main pipe 2; 41, outlet pipe 2; 42, inlet pipe 2; 43, connecting pipe 1; 44, fixing ring; 45, spring 2; 46, ejector rod; 47, baffle; 48, sealing plate; 49, connecting pipe 2; 50, fixing frame. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0043] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] Referring to Figure 1-11 shown, it is a preferred embodiment provided by the present invention.

[0045] Embodiment 1: An integrated device for advanced treatment of aquaculture wastewater, as Figures 1-4 shown, includes a pretreatment unit vertically installed. The function of the pretreatment unit is to filter large particulate impurities in the aquaculture wastewater. In this embodiment, the centrifugal method is used to achieve the filtering effect. As Figure 1 shown, the pretreatment unit mainly consists of a pressurizing cylinder 1, a separation cylinder 8, a screw 20 and a driving mechanism. The pressurizing cylinder 1 and the separation cylinder 8 are both vertically installed. The separation cylinder 8 is located inside the pressurizing cylinder 1. A plurality of filter holes 9 are opened on the side wall of the separation cylinder 8. The side wall of the separation cylinder 8 is in sealed rotational contact with the bottom surface of the pressurizing cylinder 1. The bottom of the separation cylinder 8 is connected to the wastewater pipe 12. In this embodiment, the wastewater pipe 12 is regarded as a part of this device. In order to enable the normal rotation of the separation cylinder 8, the wastewater pipe 12 and the initial pipeline are set to be rotatably connected in this embodiment. If there is no pressurizing device in the initial pipeline, impellers can also be provided in the wastewater pipe 12 or the separation cylinder 8, so that when the separation cylinder 8 rotates, the wastewater in the initial pipe can be pressurized into the separation cylinder 8. The screw 20 is fixedly installed on the separation cylinder 8, so that the screw 20 can pressurize the filtered aquaculture wastewater into the anaerobic treatment unit.

[0046] In this embodiment, the driving mechanism is as Figure 1 shown, and mainly consists of a driving motor 10, two rotating wheels 11 and a power transmission belt 13; the driving motor 10 is fixedly installed at the bottom of the pressurizing cylinder. The two rotating wheels 11 are respectively sleeved on the output end of the driving motor 10 and the wastewater pipe 12, and the power transmission belt 13 is simultaneously sleeved on the two rotating wheels 11.

[0047] The anaerobic treatment unit of this embodiment mainly consists of an anaerobic treatment tank 3, a reflux tank 2, a three-phase separator 4, an effluent weir 6, and a vent pipe 5. The bottom of the anaerobic treatment tank 3 is connected to the top of the pressurized cylinder 1. In this way, the pretreated wastewater enters from the bottom of the anaerobic treatment tank 3 under the action of the pressure of the screw 20 and reacts with the sludge bed area in the anaerobic treatment tank 3. In order to enable the wastewater to fully undergo anaerobic reaction, in this embodiment, the reflux tank 2 is fixedly sleeved on the outer side wall of the anaerobic treatment tank 3. The bottom of the reflux tank 2 is connected to the bottom of the anaerobic treatment tank 3 through a pipeline. The tops of the reflux tank 2 and the anaerobic treatment tank 3 are open and their top surfaces are flush. In this way, a part of the reacted wastewater will enter the reflux tank 2. In order to allow part of the wastewater to flow out of the anaerobic treatment unit, in this embodiment, the effluent weir 6 is fixedly sleeved on the top of the reflux tank 2. The three-phase separator 4 is a separator with an open bottom and an inverted conical shape. The bottom surface of the three-phase separator 4 is in contact with the effluent weir 6 and has a gap; the vent pipe 5 is fixedly connected to the top of the three-phase separator 4. In this way, the generated biogas is discharged through the vent pipe 5, and the anaerobically treated wastewater enters the pipeline through the effluent weir 6.

[0048] In order to improve the wastewater purification efficiency, modular treatment process chains are arranged around the pressurized cylinder 1. There are 4 groups in this embodiment, as Figure 4 shown in the distribution setting; the modular treatment process consists of multiple treatment devices. For example, Figure 1 shown, taking the breeding wastewater of a pig farm as an example, an anoxic treatment unit 19, an aerobic treatment unit 18, a flocculation and precipitation unit 17, an ultraviolet disinfection unit 16, a filtration and adsorption unit 15, and an ecological wetland unit 14 are respectively arranged. The six treatment units are installed in sequence from top to bottom. In this application, each treatment unit adopts the prior art, and the specific internal structure will not be elaborated. The staff only needs to select different treatment units according to the specific situation of the breeding wastewater. Combining Figure 3 shown, a diversion mechanism is connected to both the liquid inlet end (near its top) and the liquid outlet end (located at its bottom) of the treatment unit. The pipeline mainly consists of a main pipe 1 - 7, six inlet pipes 1 - 24, six external connecting pipes 30, and six outlet pipes 1 - 32. The top end of the main pipe 1 - 7 is connected to the effluent weir 6, and the bottom end of the main pipe 1 - 7 is detachably connected to the corresponding inlet pipe 1 - 24 of the aerobic treatment unit 18. The corresponding outlet pipe 1 - 32 of the aerobic treatment unit 18 is detachably connected to the corresponding inlet pipe 1 - 24 of the next-level treatment unit. In this way, each treatment unit can be connected in sequence. In order to enable the equipment to overhaul the treatment unit and replace the internal purification substances without stopping operation, in this embodiment, the external connecting pipe 30 is fixedly installed between the two diversion mechanisms.

[0049] Such as Figure 3As shown in the figure, the diversion mechanism mainly consists of a spherical shell 28 and a sphere 33. The sphere 33 is located inside the spherical shell 28, and an L-shaped channel 39 is opened in the sphere 33. For the diversion mechanism connected to the liquid inlet end of the processing unit, the other two ends of the spherical shell 28 are respectively connected to the first liquid inlet pipe 24 and the external connection pipe 30; one end of the L-shaped channel 39 is always in communication with the first liquid inlet pipe 24, and the other end can be respectively in communication with the liquid inlet end of the processing unit and the external connection pipe 30 when the sphere 33 rotates. For the diversion mechanism connected to the liquid outlet end of the processing unit, the other two ends of the spherical shell 28 are respectively connected to the first liquid outlet pipe 32 and the external connection pipe 30; one end of the L-shaped channel 39 is always in communication with the first liquid outlet pipe 32, and the other end can be respectively in communication with the liquid inlet end of the processing unit and the external connection pipe 30 when the sphere 33 rotates. When it is necessary to use the processing unit to purify wastewater, the L-shaped channels 39 of the two diversion mechanisms are respectively in communication with the liquid inlet end and the liquid outlet end of the processing unit ( Figure 3 the state shown). When it is necessary to repair the processing unit or replace the internal purification substances, only need to connect the L-shaped channels 39 of the two diversion mechanisms to the external connection pipe 30. In this way, the wastewater directly flows from the first liquid inlet pipe 24 through the external connection pipe 30 to the first liquid outlet pipe 32, and then directly enters the next-stage processing unit.

[0050] In order to reverse the L-shaped channels 39 of the two diversion mechanisms simultaneously, a driving unit is provided between the two diversion mechanisms in this embodiment. The driving unit mainly consists of a servo motor 35, a transmission shaft 38, two first bevel gears 34, two second bevel gears 29, and two transmission gears 37; the centers of the two first bevel gears 34 are respectively fixedly connected to the end of the transmission shaft 38 and the output end of the servo motor 35. The two first bevel gears 34 are respectively meshed with the two second bevel gears 29. The two transmission gears 37 are respectively fixedly sleeved on the transmission shaft 38 and the output shaft of the servo motor 35, and the two transmission gears 37 are meshed. In this way, when the servo motor 35 rotates, the directions of the L-shaped channels 39 of the two diversion mechanisms can be adjusted simultaneously. In order to protect the driving unit, a waterproof box 31 is fixedly installed on the outer side wall of each processing unit in this embodiment. The entire driving unit is arranged in the waterproof box 31, and the central shafts of the two second bevel gears 29 are in sealed contact with the waterproof box 31.

[0051] Regarding the driving unit, it should be emphasized that whether it is electrically adjusted or manually adjusted, as long as a driving unit can simultaneously rotate the spheres 33 of the two diversion mechanisms and achieve the effect that the L-shaped channels 39 are simultaneously in communication with the external connection pipe 30 or the processing unit, such a driving unit structure is within the protection scope of this application.

[0052] To enable each processing unit to be installed more stably, in this embodiment, a slider 36 with a convex end is further provided on the aerobic treatment unit 18. At the same time, a chute (not marked in the figure) matching the size of the slider 36 is opened on the outer side wall of the pressurized cylinder 1. There is a certain damping between the slider 36 and the chute. The bottom end of the chute allows the slider 36 to be inserted. When the slider 36 moves upward, the slider 36 will be restricted. Figure 1 as shown.

[0053] In this embodiment, when it is necessary to replace different processing units due to large changes in the quality of the aquaculture wastewater, the connection between the first liquid inlet pipe 24 and the first liquid outlet pipe 32 is directly removed, and the whole Figure 3 part can be replaced.

[0054] In this embodiment, the connection method of the first liquid inlet pipe 24 and the main pipe 7 / the first liquid outlet pipe 32 is specifically as follows: As Figure 2 shown, an annular groove 27 is opened on the outer wall of the connection between the first liquid outlet pipe 32 and the main pipe 7. A first spring 21 and a limiting ring 22 are sleeved in the annular groove 27. The two ends of the first spring 21 of the bypass pipeline are respectively fixedly connected to the end of the annular groove 27 and the limiting ring 22; a plurality of through grooves 26 are also opened on the side wall of the connection between the main pipe 7 and the first liquid outlet pipe 32, and limiting balls 25 are arranged in the through grooves 26; the outer diameter of the connection of the first liquid inlet pipe 24 matches the inner diameter of the connection of the first liquid outlet pipe 32, and a limiting groove 23 corresponding to the through groove 26 is opened on the outer side wall of the first liquid inlet pipe 24. When the first liquid inlet pipe 24 is connected to the first liquid outlet pipe 32, the limiting balls 25 are simultaneously located in the through groove 26 and the limiting groove 23, and the inner side wall of the limiting ring 22 is in contact with the limiting balls 25. When disassembly is required, the staff holds the limiting ring 22 and pulls it upward to expose the limiting balls 25, and then pulls the first liquid inlet pipe 24 downward. The limiting balls 25 leave the limiting groove 23, and the first liquid inlet pipe 24 can be taken out.

[0055] Working principle: When the device needs to be used, install the pressurized cylinder body 1 at an appropriate position, connect the wastewater pipe 12 to the initial pipe, and determine which treatment units to use according to the contents of ammonia nitrogen, CODcr, etc. in the aquaculture wastewater. After selection, install them in sequence, and connect the liquid inlet pipe 24 corresponding to each treatment unit to the liquid outlet pipe 32 of the previous treatment unit. The first-stage treatment unit is connected to the main pipe 7. During normal operation of the device, the driving motor 10 drives the rotating wheel 11 to rotate, drives the wastewater pipe 12 to rotate through the power transmission belt 13, and the wastewater pipe 12 drives the separation cylinder 8 to rotate. At this time, the wastewater entering the separation cylinder 8 is thrown out into the pressurized cylinder body 1 through the filter holes 9 under the action of centrifugal force. Since the screw 20 is also rotating at the same time, the screw 20 pressurizes the filtered wastewater into the anaerobic treatment unit. The treated wastewater enters the liquid inlet pipe 24 through the main pipe 7, and then enters the treatment unit through the L-shaped channel 39. After being treated by this treatment unit, it enters the liquid outlet pipe 32 through the L-shaped channel 39 of another diversion mechanism, and then enters the next-stage treatment unit. If maintenance is required or the purification substances in the treatment unit need to be replaced, the staff rotates the servo motor 35 for adjustment. The servo motor 35 drives the bevel gear 34 and the bevel gear 29 to rotate, thereby driving the sphere 33 to rotate. The spheres 33 of the two diversion mechanisms rotate synchronously, so that the free ends of the L-shaped channels 39 are simultaneously connected to the external connection pipe 30. In this way, the aquaculture wastewater directly flows into the liquid outlet pipe 32 through the external connection pipe 30 after flowing through the liquid inlet pipe 24, and thus enters the next-stage treatment unit.

[0056] Embodiment 2: An integrated device for advanced treatment of aquaculture wastewater. The main difference between this embodiment and Embodiment 1 lies in the different disassembly positions of the treatment device. In order to reduce the detachable components, in this embodiment, the liquid inlet pipe 24, the liquid outlet pipe 32, the main pipe 7 and the diversion mechanism form an integral pipeline. The liquid inlet end and the liquid outlet end of the treatment unit are detachably connected to the spherical shells 28 of the two diversion mechanisms. The specific connection method is the same as the connection method between the liquid inlet pipe 24 and the liquid outlet pipe 32 in Embodiment 1. At the same time, the waterproof box 31 is fixedly installed on the external connection pipe 30, and in addition, the slider 36 design is cancelled. In this way, when the staff disassembles, they only need to remove the treatment unit.

[0057] When designing the product, the internal structures and dimensions of each treatment unit are determined according to the actual situation. As long as the liquid inlet end and the liquid outlet end of the treatment unit match the port dimensions of the diversion mechanism, the installation can be carried out smoothly.

[0058] Embodiment 3: An integrated device for advanced treatment of aquaculture wastewater. The main difference between this embodiment and Embodiment 1 lies in the different connection methods between the treatment device and the pipeline. As Figures 8-10As shown in the figure, in this embodiment, the pipeline is composed of a main pipe two 40, multiple connecting pipes one 43 and multiple connecting pipes two 49. The connecting pipes one 43 and the connecting pipes two 49 are vertically connected to the main pipe two 40, and the connecting pipes one 43 and the connecting pipes two 49 are arranged alternately. The cross-section of the main pipe two 40 in this embodiment is rectangular. A sealing unit is installed at the connection of the connecting pipe one 43 and the connecting pipe two 49 with the main pipe two 40; the sealing unit is mainly composed of a spring two 45 and a sealing plate 48. One end of the spring two 45 is fixedly connected to the inner wall of the connecting pipe one 43 or the connecting pipe two 49, and the other end is fixedly connected to the sealing plate 48; when the treatment device is not installed, the sealing plate 48 is attached to the end of the connecting pipe one 43 or the connecting pipe two 49 under the action of the spring two 45 to achieve sealing.

[0059] In addition, as Figure 9 shown, a baffle 47 is also slidably arranged on the outer side wall of the connecting pipe one 43. The top surface of the baffle 47 matches the inner diameter of the main pipe two 40 and is fixedly connected to the bottom of the sealing plate 48. As Figure 6 shown, when the sealing plate 48 fits against the inner wall of the main pipe two 40, most of the area of the baffle 47 is located inside the main pipe two 40 and blocks the main pipe two 40.

[0060] The entire treatment device in this embodiment is also different from that in Embodiment 1. The treatment device in this embodiment is mainly composed of a treatment unit, a liquid inlet pipe two 42 and a liquid outlet pipe two 41. The liquid inlet pipe two 42 and the liquid outlet pipe two 41 are respectively fixedly connected to the liquid inlet end and the liquid outlet end of the treatment unit, and the connection of the liquid inlet pipe two 42 and the liquid outlet pipe two 41 matches the connection of the connecting pipe one 43 and the connecting pipe two 49. As Figure 6 shown, in order to make the installation of the treatment device stable, matching threads are provided on the connecting pipe one 43, the connecting pipe two 49, the liquid inlet pipe two 42 and the liquid outlet pipe two 41. A fixing ring 44 is arranged on the thread. The fixing ring 44 is sleeved on the threaded section of the connecting pipe one 43 and the connecting pipe two 49. When the liquid inlet pipe two 42 and the liquid outlet pipe two 41 are respectively connected to the connecting pipe one 43 and the connecting pipe two 49, only by rotating the fixing ring 44 to the position of the connection of the pipelines can the fixation be achieved. At the same time, a top rod 46 is fixedly installed at the ends of the liquid inlet pipe two 42 and the liquid outlet pipe two 41. When the liquid inlet pipe two 42 and the liquid outlet pipe two 41 are installed, the top rod 46 can just push the sealing plate 48 against the inner wall of the main pipe two 40 ( Figure 6 and Figure 7 shown), and at this time the baffle 47 also just blocks the main pipe two 40, so that the aquaculture wastewater can only flow into the installed treatment unit.

[0061] Since the distance between the first connecting pipe 43 and the second connecting pipe 49 in this embodiment is fixed, in order to enable different processing units to be installed on the first connecting pipe 43 and the second connecting pipe 49, the vertical section of the second liquid outlet pipe 41 in this embodiment is set as a telescopic pipe.

[0062] In order to make the second main pipe 40 more stable, in this embodiment, a fixing frame 50 is fixedly installed on the outer side wall of the pressurizing cylinder 1, and the fixing frame 50 is fixedly sleeved on the second main pipe 40 in a collar way.

[0063] Compared with the solution of Embodiment 1, in this embodiment, by installing the processing device, the wastewater can automatically enter the processing unit without separately designing a diversion mechanism. When the processing device is removed, the aquaculture wastewater can also normally flow into the next-level processing unit.

[0064] It should be emphasized that as long as the entire processing device can be detachably installed on the pipeline according to requirements, and when overhauling or replacing the internal purification substances, the equipment does not need to be shut down, such pipelines and processing devices are within the protection scope of this application.

[0065] Working principle: When installing the processing device on the first connecting pipe 43 and the second connecting pipe 49, after the second liquid inlet pipe 42 and the second liquid outlet pipe 41 are connected to the two connecting pipes, rotate the fixing ring 44 to make the fixing ring 44 simultaneously sleeved on the two threaded sections at both ends. At this time, the ejector rod 46 pushes the sealing plate 48 against the inner wall of the second main pipe 40, and at the same time, the baffle plate 47 blocks the second main pipe 40. At this time, the aquaculture wastewater will enter the processing unit and then flow out from the second liquid outlet pipe 41. When it is necessary to dynamically adjust the processing unit, only need to loosen the fixing ring 44 and then remove the processing device. The sealing plate 48 is blocked by the second spring 45 to block the connecting pipe. At this time, the baffle plate 47 also moves outside the second main pipe 40, and the aquaculture wastewater directly flows into the next-level processing unit.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated device for advanced treatment of aquaculture wastewater, characterized in that, It includes a vertically installed pretreatment unit. The bottom of the pretreatment unit is the liquid inlet end, and an anaerobic treatment unit is installed at the top of the pretreatment unit. A plurality of pipelines are installed on the anaerobic treatment unit, and the wastewater after anaerobic treatment flows out from the pipelines. On the side wall of the pretreatment unit, there are multiple groups of modular treatment process chains. The modular treatment process chain includes a plurality of treatment devices. The liquid inlet ends and the liquid outlet ends of the plurality of treatment devices are simultaneously connected to the corresponding pipelines, and a diversion mechanism is provided at the connection between the treatment device and the pipeline. The diversion mechanism can adjust the flow direction of the wastewater.

2. The integrated equipment for advanced treatment of aquaculture wastewater according to claim 1, characterized in that, The pipeline includes a main pipe one (7) and a plurality of bypass pipelines. The bypass pipelines correspond to the treatment devices one by one. The liquid inlet end of the main pipe one (7) is connected to the liquid outlet end of the anaerobic treatment unit, and the liquid outlet end of the main pipe one (7) is connected to the bypass pipelines. A plurality of bypass pipelines are connected in series between the diversion mechanisms; The bypass pipeline includes an inlet pipe one (24), an outer connection pipe (30), and an outlet pipe one (32); both ends of the outer connection pipe (30) are respectively connected to two diversion mechanisms, and the inlet pipe one (24) and the outlet pipe one (32) are respectively connected to two diversion mechanisms and kept in a connected state; the liquid inlet end and the liquid outlet end of the treatment device are respectively connected to two diversion mechanisms; The diversion mechanism includes a spherical shell (28) and a sphere (33); the sphere (33) is rotatably arranged in the spherical shell (28), and an L-shaped channel (39) is opened in the sphere (33). One end of the L-shaped channel (39) is a free end, which can be respectively communicated with the outer connection pipe (30) and the treatment device when the sphere (33) rotates; A driving unit is arranged between the two diversion mechanisms. The driving unit can simultaneously drive the two diversion mechanisms to rotate and can adjust the connection state between the pipeline and the treatment device.

3. The integrated device for advanced treatment of aquaculture wastewater according to claim 2, characterized in that, The inlet pipe one (24) and the outlet pipe one (32) of two adjacent bypass pipelines are detachably connected, and the bypass pipeline close to the main pipe one (7) is detachably connected to the main pipe one (7).

4. An integrated device for advanced treatment of aquaculture wastewater according to claim 3, wherein, An annular groove (27) is opened on the outer wall at the connection between the outlet pipe one (32) and the main pipe one (7). A first spring (21) and a limiting ring (22) are sleeved in the annular groove (27). Both ends of the first spring (21) of the bypass pipeline are respectively fixedly connected to the end of the annular groove (27) and the limiting ring (22); a plurality of through grooves (26) are also opened on the side wall at the connection between the main pipe one (7) and the outlet pipe one (32), and limiting balls (25) are arranged in the through grooves (26); the outer diameter at the connection of the inlet pipe one (24) matches the inner diameter at the connection of the outlet pipe one (32). A limiting groove (23) corresponding to the through groove (26) is opened on the outer side wall of the inlet pipe one (24). When the inlet pipe one (24) is connected to the outlet pipe one (32), the limiting balls (25) are simultaneously located in the through groove (26) and the limiting groove (23), and at the same time, the inner side wall of the limiting ring (22) is in contact with the limiting balls (25).

5. The integrated device for advanced treatment of aquaculture wastewater according to claim 3, wherein The liquid inlet end and the liquid outlet end of the treatment device are respectively detachably connected to the spherical shells (28) of the two diversion mechanisms.

6. An integrated device for advanced treatment of aquaculture wastewater according to any one of claims 2-5, characterized in that, The driving unit includes a servo motor (35), a transmission shaft (38), two transmission gears (37), two first bevel gears (34) and two second bevel gears (29); the centers of the two first bevel gears (34) are respectively fixedly connected to the end of the transmission shaft (38) and the output end of the servo motor (35), the two first bevel gears (34) are respectively meshed with the two second bevel gears (29), the two transmission gears (37) are respectively fixedly sleeved on the transmission shaft (38) and the output shaft of the servo motor (35), and the two transmission gears (37) are meshed with each other.

7. An integrated device for advanced treatment of aquaculture wastewater according to claim 1, characterized in that, The pipeline includes a second main pipe (40), multiple first connecting pipes (43) and multiple second connecting pipes (49); one end of the second main pipe (40) is connected to the water outlet end of the anaerobic treatment unit, the multiple first connecting pipes (43) and the multiple second connecting pipes (49) are both connected to the second main pipe (40) and are alternately distributed; A sealing unit is provided at the connection between the second main pipe (40) and the first connecting pipe (43) and the second connecting pipe (49). The sealing unit includes a sealing plate (48) and a second spring (45). One end of the second spring (45) is fixedly connected to the inner side wall of the first connecting pipe (43), and the other end of the second spring (45) is fixedly connected to the sealing plate (48). When the second spring (45) is in a natural state, the sealing plate (48) is in sealing contact with the end of the first connecting pipe (43); A baffle (47) is slidably provided on the outer side wall of the bottom surface of the first connecting pipe (43). The baffle (47) passes through the side wall of the second main pipe (40), and the top surface of the baffle (47) is fixedly connected to the end of the sealing plate (48); when the sealing plate (48) fits against the inner side wall of the second main pipe (40), the baffle (47) is horizontally placed in the second main pipe (40) and blocks the second main pipe (40); The treatment device includes a treatment unit, a second inlet pipe (42) and a second outlet pipe (41). The inlet end and the outlet end of the treatment unit are respectively connected to the second inlet pipe (42) and the second outlet pipe (41). The second inlet pipe (42) and the second outlet pipe (41) are respectively detachably connected to the first connecting pipe (43) and the second connecting pipe (49). Thrust rods (46) are provided at the ends of the second inlet pipe (42) and the second outlet pipe (41). When the second inlet pipe (42) is connected to the first connecting pipe (43), the thrust rod (46) pushes the sealing plate (48) to fit against the inner side wall of the second main pipe (40).

8. An integrated device for advanced treatment of aquaculture wastewater according to claim 1, characterized in that, The pretreatment unit includes a pressurizing cylinder body (1), a wastewater pipe (12), a separation cylinder (8), a screw conveyor (20) and a driving mechanism. The separation cylinder (8) is vertically installed in the pressurizing cylinder body (1). The bottom of the separation cylinder (8) is connected to the wastewater pipe (12). A plurality of filter holes (9) are formed in the side wall of the separation cylinder (8). The screw conveyor (20) is fixedly installed on the outer side wall of the separation cylinder (8); the driving mechanism is installed on the pressurizing cylinder body (1) and drives the separation cylinder (8) to rotate; the top water outlet end of the pressurizing cylinder body (1) is connected to the anaerobic treatment unit.

9. An integrated device for advanced treatment of aquaculture wastewater according to claim 8, characterized in that, The driving mechanism includes a driving motor (10), two rotating wheels (11) and a power transmission belt (13); the driving motor (10) is fixedly installed at the bottom of the pressurizing cylinder, the two rotating wheels (11) are respectively sleeved on the output end of the driving motor (10) and the wastewater pipe (12), and the power transmission belt (13) is simultaneously sleeved on the two rotating wheels (11).

10. An integrated device for advanced treatment of aquaculture wastewater according to claim 1, characterized in that, The anaerobic treatment unit includes an anaerobic treatment tank (3), a reflux tank (2), a three-phase separator (4), an effluent weir (6) and a vent pipe (5); the bottom of the anaerobic treatment tank (3) is connected to the top of the pressurizing cylinder body (1), the reflux tank (2) is fixedly sleeved on the outer side wall of the anaerobic treatment tank (3), the bottom of the reflux tank (2) is connected to the bottom of the anaerobic treatment tank (3) through a pipeline, the tops of the reflux tank (2) and the anaerobic treatment tank (3) are open and their top surfaces are flush; the effluent weir (6) is fixedly sleeved on the top of the reflux tank (2), the three-phase separator (4) is a separator with an open bottom and an inverted conical shape, the bottom surface of the three-phase separator (4) is in contact with the effluent weir (6) and has a gap; the vent pipe (5) is fixedly connected to the top of the three-phase separator (4).

Images