An integrated wastewater treatment equipment for aquaculture

Abstract

This invention belongs to the field of aquaculture wastewater treatment technology, specifically providing an integrated aquaculture wastewater treatment device, including a pretreatment unit and multiple biochemical treatment tanks. The pretreatment unit includes a first pretreatment box and a filter box coaxially connected. The communication chamber between the filter box and the first pretreatment box is the first chamber, and a grid is installed between the first chamber and the first pretreatment box. The filter box also has a second chamber, which communicates with the first chamber. One side of the bottom of the filter box is connected to a drainage pipe, which is connected to multiple biochemical treatment tanks through a water injection valve assembly. This invention can remove relatively large suspended solids and other debris from wastewater. The pretreatment unit, in conjunction with the water injection valve assembly, can automatically inject wastewater into different biochemical treatment tanks. Once the wastewater in the currently active biochemical treatment tank is full, the pretreatment unit automatically switches the water injection valve assembly to add the pretreated wastewater to other biochemical treatment tanks.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and in particular relates to an integrated treatment device for aquaculture wastewater. Background Technology

[0002] Wastewater generated during livestock and poultry farming is unavoidable, so its treatment is particularly important to prevent environmental pollution.

[0003] The core of existing livestock and poultry breeding wastewater treatment is biochemical treatment, which is generally an anaerobic-aerobic combined treatment process. However, a large amount of breeding wastewater contains other non-degradable pollutants that are suspended or floating in the water body. Natural sedimentation cannot remove these pollutants, which will have a certain impact on the subsequent anaerobic and aerobic treatment processes. Therefore, it is unreasonable to directly treat breeding wastewater with biochemical methods.

[0004] Currently, the process units for livestock and poultry breeding wastewater before entering the biochemical treatment are collectively referred to as pretreatment. The main pretreatment process is filtration to remove larger suspended solids in the wastewater so as not to affect the treatment effect of subsequent treatment units and the normal operation of equipment. Solid-liquid separation usually uses physical methods to separate the solid part from the liquid part.

[0005] For example, patent document 1 with announcement number CN214422460U discloses an integrated wastewater treatment facility for livestock and poultry farms, including an anoxic tank, an anaerobic tank, and a ring-shaped aerobic tank. The anoxic tank and the anaerobic tank are arranged side by side in the middle of the ring-shaped aerobic tank. The outlet of the anoxic tank is connected to the inlet of the anaerobic tank, and the outlet of the anaerobic tank is connected to the ring-shaped aerobic tank. An aeration rotating brush is installed in the ring-shaped aerobic tank, and a solid-liquid separation zone is set on the side wall of the ring-shaped aerobic tank. The solid-liquid separation zone includes a solid-liquid separation inlet, unit plates, a slow flow zone, a solid-liquid separation channel, and a water collection tank.

[0006] For example, patent document 2 with announcement number CN214735047U discloses an integrated wastewater treatment equipment for livestock and poultry farming, which includes a treatment frame, a treatment box, a fixed top plate, a water injection cylinder, a processing component, a disinfection component, a discharge pipe, and a load-bearing base frame. The treatment box is fixedly installed on the center of the top end face of the treatment frame by bolts. The fixed top plate is fixedly installed on the center of the top end face of the treatment box by bolts. The water injection cylinder is fixedly installed on the center of the top end face of the fixed top plate by bolts. The processing component is arranged inside the treatment box. The disinfection component is fixedly installed on one side of the outer wall of the treatment box. The discharge pipe is arranged on the center of the bottom end face of the treatment box and is connected to the processing component.

[0007] Analysis reveals that the integrated treatment facility disclosed in Patent Document 1 has a solid-liquid separation zone on the side wall of the annular aerobic tank, which is prone to clogging, requiring frequent cleaning of blockages during wastewater treatment. While Patent Document 2, based on solid-liquid separation, can break down suspended solids such as feces in wastewater through processing components, thus avoiding feces clogging the drainage pipes to some extent, the drainage pipes are normally closed during the operation of the processing components, making it impossible to deliver filtered wastewater to the biochemical treatment device in a timely manner, thus affecting the overall efficiency of wastewater treatment. Summary of the Invention

[0008] The purpose of this invention is to provide an integrated treatment device for aquaculture wastewater, which aims to solve the technical problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution.

[0010] An integrated wastewater treatment device for aquaculture includes a pretreatment unit and multiple biochemical treatment tanks;

[0011] The pretreatment device includes a first pretreatment box and a filter box that are coaxially connected.

[0012] The first pretreatment box is equipped with a crushing mechanism, which includes a drive spindle that is coaxially rotatably disposed in the first pretreatment box, and a set of crushing long blades is fixedly installed on the drive spindle.

[0013] The communication chamber between the filter box and the first pretreatment box is the first chamber. A grid is provided between the first chamber and the first pretreatment box, and a speed reducer is installed on the grid.

[0014] A linkage shaft is coaxially rotatably installed in the first chamber. One end of the linkage shaft is connected to the output shaft of the reducer, and the other end of the drive shaft is connected to the input shaft of the reducer.

[0015] The filter box also has a second chamber, which is connected to the first chamber, and the inner diameter of the second chamber is larger than that of the first chamber.

[0016] The bottom side of the filter box is connected to a drainage pipe, which is connected to multiple biochemical treatment tanks through a water injection valve group.

[0017] A driven shaft is also coaxially rotatably disposed in the second chamber, with one end of the driven shaft rotatably connected to the other end of the linkage shaft;

[0018] The other end of the driven shaft extends outside the filter box, and a drive gear is coaxially fixedly installed on the other end of the driven shaft. The drive gear is linked with the water injection valve group.

[0019] Furthermore, a guide rod is also installed on the linkage shaft located in the second chamber. A float is slidably sleeved on the guide rod, and a rotating gear is rotatably installed on one side of the float. A driven gear is rotatably supported at the top of the guide rod, and a first transmission sprocket is coaxially fixedly installed on the driven gear. When the driven gear rotates, it synchronously drives the first transmission sprocket to rotate.

[0020] A second transmission sprocket is coaxially fixed on the driven shaft. The second transmission sprocket is connected to the first transmission sprocket by a transmission chain belt. In other words, when the driven gear rotates, it can drive the driven shaft to rotate.

[0021] Furthermore, an arc-shaped plate is fixedly installed on the inner wall of the first cavity. The arc-shaped plate is fixedly installed on the inner wall of the first cavity through a connecting side plate. An external tooth surface is provided on the arc-shaped plate, and an arc-shaped channel is formed between the arc-shaped plate and the inner wall of the first cavity. Correspondingly, when the rotating gear is in the arc-shaped channel, the rotating gear meshes with the external tooth surface.

[0022] Furthermore, the top of the arc-shaped plate is also provided with a guide block with an adjustable tilt angle. Since the guide block is used to guide the rotating gear, it can smoothly cut into the arc-shaped channel. Therefore, according to the liquid level requirements of the water injection valve assembly to generate action, the present invention can adaptively adjust the height of the end of the guide block. For example, when the liquid level in the second chamber is at the M level, the moving guide rod will cause the rotating gear to cut into the arc-shaped channel, thereby driving the driven shaft to rotate. When it is necessary to make the rotating gear cut into the arc-shaped channel when the liquid level in the second chamber is lower than the M level, the tilt angle of the guide block can be adjusted so that the end of the guide block moves down a certain distance. The rotating gear can cut into the arc-shaped channel earlier so that the water injection valve assembly can perform switching action.

[0023] Furthermore, the guide block is fixedly mounted on the hinge shaft, which is rotatably supported at the top of the arc-shaped plate. A driven gear ring is coaxially fixed on the hinge shaft. The first pretreatment box is height-adjustable and equipped with an adjusting column. The adjusting column is equipped with a rack that meshes with the driven gear ring. Therefore, adjusting the height of the adjusting column will cause the rack to move relative to the driven gear ring, thereby causing the hinge shaft to rotate at a certain angle, and thus adjusting the tilt angle of the guide block.

[0024] An adjusting ring is fixedly installed on the first pretreatment box, and an adjusting column is slidably installed on the adjusting ring. An adjusting bolt is installed on the adjusting ring to fix the adjusting column. When in use, the adjusting bolt is removed first, the height of the adjusting column is manually adjusted to the required position, and then the adjusting bolt is used to fix the adjusting column.

[0025] Furthermore, the water injection valve assembly includes a rotating ring, which is coaxially and rotatably sealed at the end of the drainage pipe, and a water inlet is provided on the rotating ring; the water injection valve assembly also includes an outer casing, on which multiple purification inlet pipes are arranged in a circumferential array at equal intervals, and each purification inlet pipe is connected to a corresponding biochemical treatment tank.

[0026] A driven gear is coaxially fixed on the outer ring of the rotating ring. The driven gear meshes with the drive gear at the end of the driven shaft. When the drive gear rotates, it drives the driven gear to rotate by a certain angle, which in turn drives the rotating ring to rotate by a certain angle, so that the water inlet on the rotating ring is aligned with the corresponding purification inlet pipe. At this time, the drain pipe is connected to the currently aligned purification inlet pipe, so that the wastewater in the second chamber can enter the corresponding biochemical treatment tank through the drain pipe and purification inlet pipe.

[0027] Furthermore, a filter screen is provided in the second chamber. The filter screen has a funnel-shaped structure, with the funnel opening facing the first chamber.

[0028] Understandably, after the larger suspended solids in the wastewater of the first pretreatment tank are crushed, the wastewater containing fine debris passes through the screen and enters the first chamber and the second chamber.

[0029] A cleaning brush rod that mates with the filter screen is fixedly installed on the driven shaft located in the second chamber. When the driven shaft rotates, it also drives the cleaning brush rod to clean the deposits on the filter screen. In this way, when the driven shaft rotates and drives the water injection valve group to connect the drainage pipe to the new biological treatment tank, the filter screen is cleaned first. This allows the sewage in the second chamber to pass smoothly through the filter screen and further enter the new biological treatment tank through the drainage pipe.

[0030] Furthermore, a second pretreatment box is provided on both sides of the first pretreatment box;

[0031] The second pretreatment box is equipped with a rotatable shredder assembly, and the drive spindle is linked to the mounting shaft of the shredder assembly via gear transmission.

[0032] The first pretreatment box, the filter box, the second pretreatment box, and multiple biochemical treatment tanks are all fixedly installed on the frame;

[0033] The frame is also equipped with a drive motor for driving the drive spindle to rotate. The output shaft of the drive motor is connected to one end of the drive spindle by a sprocket transmission.

[0034] Compared with existing technologies, the beneficial effects of the integrated wastewater treatment equipment for aquaculture of the present invention are:

[0035] First, when the first pretreatment tank and the filter tank are in a water storage state, the water level in the second chamber is low. During the water storage process, the crushing mechanism crushes the suspended solids and garbage in the wastewater in the first pretreatment tank and the second pretreatment tank.

[0036] Secondly, when the water level in the second chamber reaches a certain height, the rotating gear, external tooth surface, and driven gear will mesh together. The continuously rotating linkage shaft, under the meshing action of the rotating gear, external tooth surface, and driven gear, will cause the driven shaft to rotate. At this time, the water injection valve group will activate. When the rotating gear disengages from the arc-shaped channel, the water injection valve group will complete the action of connecting to the new biological treatment tank. At this time, the wastewater in the second chamber will enter the currently connected biological treatment tank through the drainage pipe. After the water level in the second chamber drops, the second chamber will switch to a water storage state. At this time, the second chamber will maintain the connection with the current biological treatment tank.

[0037] In summary, when this invention is implemented, aquaculture wastewater is injected into a pretreatment device for pretreatment to remove larger suspended solids and other debris. The pretreatment device, in conjunction with a water injection valve assembly, can automatically inject wastewater into different biological treatment tanks. Once the biological treatment tank currently in the flow path is full, the pretreatment device automatically switches the flow path of the water injection valve assembly to inject the pretreated wastewater into other biological treatment tanks, greatly improving the treatment efficiency of aquaculture wastewater. Attached Figure Description

[0038] Figure 1 This is a first-view perspective perspective view of an integrated wastewater treatment device for aquaculture according to the present invention;

[0039] Figure 2 for Figure 1 A top view of the integrated wastewater treatment equipment for aquaculture provided;

[0040] Figure 3 for Figure 1 Left view of the integrated wastewater treatment equipment for aquaculture provided;

[0041] Figure 4 This is a cross-sectional view of an integrated wastewater treatment device for aquaculture according to the present invention;

[0042] Figure 5 This is a partial three-dimensional schematic diagram of an integrated treatment device for aquaculture wastewater according to the present invention;

[0043] Figure 6 for Figure 4 A partial structural schematic diagram of the integrated wastewater treatment equipment for aquaculture provided;

[0044] Figure 7 for Figure 6 An enlarged schematic diagram of part A in the middle;

[0045] Figure 8 This is a schematic diagram of the internal structure of the filter box in the integrated wastewater treatment equipment for aquaculture of the present invention;

[0046] Figure 9 This is a schematic diagram showing the interaction of the guide rod, floating block, rotating gear, and driven gear in the filter box of the present invention;

[0047] Figure 10 This is a schematic diagram of the mating structure of the arc-shaped plate and the guide block in the filter box of the present invention;

[0048] Figure 11 This is a schematic diagram of the pulverizing mechanism in the pretreatment box of the present invention;

[0049] Figure 12 This is a schematic diagram of the water injection valve group in the integrated wastewater treatment equipment for aquaculture of the present invention.

[0050] The attached figures are labeled as follows:

[0051] 100. Frame; 101. Drive motor; 102. Electrical control box;

[0052] 200. Pretreatment device;

[0053] 201. First pretreatment tank; 2011. Wastewater inlet pipe; 2012. First sewage discharge pipe; 2013. Crushing long blade assembly; 2014. Drive spindle; 2015. Bar screen; 2016. Reducer;

[0054] 202. Filter box; 2021. Driven shaft; 2022. Filter screen; 2023. Observation window; 2024. Drive gear; 2025. Cleaning brush rod;

[0055] 203. Second pretreatment box; 2031. Crushing short blade assembly;

[0056] 204. Second sewage pipe;

[0057] 205. First chamber; 206. Second chamber;

[0058] 300. Biochemical treatment tank; 301. Purification inlet pipe; 302. Outer casing; 303. Driven gear; 304. Rotating ring; 305. Drainage pipe; 306. Water inlet; 307. Purification outlet pipe;

[0059] 400. Linkage shaft; 401. Guide rod; 402. Float; 403. Rotating gear; 404. Driven gear; 405. First transmission sprocket; 406. Second transmission sprocket; 407. Transmission chain belt;

[0060] 500. Arc-shaped plate; 501. External toothed surface; 502. Guide block; 503. Hinge shaft; 504. Connecting side plate; 505. Arc-shaped channel; 506. Driven gear ring; 507. Rack; 508. Adjusting column; 509. Adjusting ring sleeve; 510. Adjusting bolt. Detailed Implementation

[0061] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0062] like Figure 1 As shown, in one embodiment of the present invention, an integrated treatment device for aquaculture wastewater includes a pretreatment device 200 for pretreating aquaculture wastewater and a biochemical treatment tank 300 for biochemically treating the pretreated wastewater.

[0063] In implementation of this invention, aquaculture wastewater is injected into a pretreatment device 200 for pretreatment to remove larger suspended solids and other debris. The invention comprises multiple biochemical treatment tanks 300. The pretreatment device 200 can automatically switch between channels for injecting wastewater into different biochemical treatment tanks 300. Once the wastewater in the currently active biochemical treatment tank 300 is filled to the required level, the pretreatment device 200 automatically switches channels to inject the pretreated wastewater into other biochemical treatment tanks 300.

[0064] Specifically, such as Figures 1-4 As shown, the pretreatment device 200 includes a first pretreatment box 201 and a filter box 202 coaxially connected. The inner diameter of the filter box 202 is larger than the inner diameter of the first pretreatment box 201. A second pretreatment box 203 is provided on both sides of the first pretreatment box 201. The second pretreatment box 203 is used to increase the amount of wastewater that the pretreatment device 200 can hold. In specific implementation, the second pretreatment box 203 may not be provided.

[0065] The first pretreatment box 201, the filter box 202, and the second pretreatment box 203 are all fixedly installed on the frame 100;

[0066] Multiple biochemical treatment pools 300 are also distributed and installed on rack 100.

[0067] The first pretreatment tank 201 is provided with a wastewater inlet pipe 2011 and a first sewage pipe 2012 on one side. A valve is provided on the first sewage pipe 2012 to control the opening and closing of the first sewage pipe 2012.

[0068] Specifically, a crushing mechanism is provided inside the first pretreatment box 201. The crushing mechanism includes a drive spindle 2014 coaxially rotatably disposed inside the first pretreatment box 201. A set of crushing long blades 2013 is fixedly installed on the drive spindle 2014, which is used to effectively crush the suspended solids and garbage in the wastewater in the first pretreatment box 201 when the drive spindle 2014 rotates at high speed.

[0069] Optional, such as Figure 4 and Figure 11 As shown, since the present invention also includes a second pretreatment box 203 that communicates with the first pretreatment box 201, a short crushing blade assembly 2031 is rotatably arranged inside the second pretreatment box 203. The drive spindle 2014 and the mounting shaft of the short crushing blade assembly 2031 are linked by gear transmission. When the drive spindle 2014 rotates and drives the long crushing blade assembly 2013 to rotate at high speed, the short crushing blade assembly 2031 is simultaneously rotated at high speed inside the second pretreatment box 203 to ensure that suspended solids and other garbage in the wastewater in the first pretreatment box 201 and the second pretreatment box 203 are effectively crushed.

[0070] Please continue reading. Figures 1-4 In this embodiment of the invention, a drive motor 101 for driving the drive spindle 2014 to rotate is also installed on the frame 100. The output shaft of the drive motor 101 is connected to one end of the drive spindle 2014 by a sprocket transmission.

[0071] Optionally, the drive motor 101 can be a forward and reverse reversible motor to improve the crushing effect of the crushing mechanism on suspended solids and garbage in the wastewater in the first pretreatment box 201 and the second pretreatment box 203.

[0072] Preferably, the frame 100 is also provided with an electrical control box 102, which is used to control the start-up or shutdown of the integrated treatment equipment for aquaculture wastewater of the present invention. The specific electrical configuration of the electrical control box 102 is known in the art and will not be described in detail here.

[0073] For further information, please refer to [link / reference]. Figure 4 and Figure 6 In this embodiment of the invention, the communicating chamber between the filter box 202 and the first pretreatment box 201 is the first chamber 205, and a grid 2015 is provided between the first chamber 205 and the first pretreatment box 201, and a reducer 2016 is installed on the grid 2015.

[0074] A linkage shaft 400 is coaxially rotatably arranged in the first chamber 205. One end of the linkage shaft 400 is connected to the output shaft of the reducer 2016, and the other end of the drive main shaft 2014 is connected to the input shaft of the reducer 2016. Under the action of the reducer 2016, the high-speed rotating drive main shaft 2014 can drive the linkage shaft 400 to rotate at a low speed.

[0075] Correspondingly, the filter box 202 also has a second chamber 206, which communicates with the first chamber 205, and the inner diameter of the second chamber 206 is larger than the inner diameter of the first chamber 205.

[0076] Preferably, a filter screen 2022 is provided in the second chamber 206. The filter screen 2022 has a funnel-shaped structure, and the funnel opening of the filter screen 2022 faces the first chamber 205.

[0077] It is understandable that after the larger suspended solids in the wastewater of the first pretreatment tank 201 are crushed, the wastewater containing fine debris passes through the screen 2015 and enters the first chamber 205 and the second chamber 206.

[0078] The bottom side of the filter box 202 is connected to the drainage pipe 305. The drainage pipe 305 is connected to multiple biochemical treatment tanks 300 through a water injection valve group. The water injection valve group is used to distribute the wastewater filtered by the filter screen 2022 in the filter box 202 to different biochemical treatment tanks 300.

[0079] Furthermore, a driven shaft 2021 is coaxially rotatably disposed in the second chamber 206. One end of the driven shaft 2021 is rotatably connected to the other end of the linkage shaft 400, that is, the driven shaft 2021 will not rotate with the rotation of the linkage shaft 400.

[0080] Furthermore, such as Figures 4-6 As shown, the other end of the driven shaft 2021 extends to the outside of the filter box 202, and a drive gear 2024 is coaxially fixedly installed on the other end of the driven shaft 2021. The drive gear 2024 is linked with the water injection valve group. When the driven shaft 2021 rotates, it is used to activate the water injection valve group, so as to realize the connection between the second chamber 206 and different biochemical treatment tanks 300. The second chamber 206 and the biochemical treatment tanks 300 that are connected to each other form a communicating vessel principle. When the biochemical treatment tank 300 with the wastewater discharged is connected to the second chamber 206, the wastewater in the second chamber 206 will enter the corresponding biochemical treatment tank 300 through the drainage pipe 305.

[0081] Please continue reading. Figure 6The bottom of the filter box 202 is provided with a second drain pipe 204 that communicates with the second chamber 206. It is understood that the second drain pipe 204 is equipped with a corresponding valve to control the opening and closing of the second drain pipe 204. When it is necessary to clean the garbage trapped in the second chamber 206, the garbage in the second chamber 206 can be discharged from the second drain pipe 204 by opening the valve on the second drain pipe 204.

[0082] Furthermore, a cleaning brush rod 2025 that mates with the filter surface of the filter screen 2022 is fixedly installed on the driven shaft 2021 located in the second chamber 206. When the driven shaft 2021 rotates, it will also drive the cleaning brush rod 2025 to clean the deposits on the filter surface of the filter screen 2022. In this way, when the driven shaft 2021 rotates and drives the water injection valve group to connect the drain pipe 305 with the new biological treatment tank 300, the filter surface of the filter screen 2022 is cleaned first. When the connection is established, the sewage in the second chamber 206 can pass smoothly through the filter screen 2022 and further enter the new biological treatment tank 300 through the drain pipe 305.

[0083] Furthermore, the top of the filter box 202 is provided with an observation window 2023. On the one hand, the observation window 2023 facilitates observation of the state inside the filter box 202. On the other hand, it facilitates the balance of air pressure inside the first pretreatment box 201 and the filter box 202 when wastewater is injected into the first pretreatment box 201. Specifically, when wastewater is injected into the first pretreatment box 201, the air inside the box can be discharged.

[0084] To achieve rotation of the driven shaft 2021, as follows: Figure 4 , Figure 6 , Figures 8-10 As shown, a guide rod 401 is also installed on the linkage shaft 400 located in the second chamber 206. A float 402 is slidably sleeved on the guide rod 401, and a rotating gear 403 is rotatably installed on one side of the float 402. A driven gear 404 is rotatably supported at the top of the guide rod 401. A first transmission sprocket 405 is coaxially fixedly installed on the driven gear 404. When the driven gear 404 rotates, it synchronously drives the first transmission sprocket 405 to rotate.

[0085] Furthermore, a second transmission sprocket 406 is coaxially fixedly sleeved on the driven shaft 2021. The second transmission sprocket 406 and the first transmission sprocket 405 are connected by a transmission chain belt 407. That is to say, when the driven gear 404 rotates, it can drive the driven shaft 2021 to rotate.

[0086] The rotating gear 403 of the present invention can mesh with the driven gear 404. However, the meshing of the rotating gear 403 and the driven gear 404 can only be achieved after the water level in the second chamber 206 rises to a specified height. That is, the present invention uses the float 402 to make the water level in the second chamber 206 rise to a certain height so that the rotating gear 403 can mesh with the driven gear 404.

[0087] Furthermore, such as Figure 8 and Figure 10 As shown, an arc-shaped plate 500 is fixedly installed on the inner wall of the first chamber 205. The arc-shaped plate 500 is fixedly installed on the inner wall of the first chamber 205 through a connecting side plate 504. An external tooth surface 501 is provided on the arc-shaped plate 500, and an arc-shaped channel 505 is formed between the arc-shaped plate 500 and the inner wall of the first chamber 205. Correspondingly, when the rotating gear 403 is in the arc-shaped channel 505, the rotating gear 403 meshes with the external tooth surface 501.

[0088] First, because the present invention is equipped with a speed reducer 2016, the rotational speed of the linkage shaft 400 is very low, and the displacement of the float 402 on the guide rod 401 caused by the centrifugal force generated by the rotation of the linkage shaft 400 on the float 402 can be ignored.

[0089] In specific implementation, such as Figure 8 and Figure 9 As shown, when the water level in the second chamber 206 is low, the rotation of the linkage shaft 400 causes the guide rod 401 to move in a circular motion around the central axis of the linkage shaft 400, which is in a state of... Figure 8 In the indicated state, the float 402 is positioned low on the guide rod 401, and the continued movement of the guide rod 401 prevents the rotating gear 403 from entering the arc-shaped channel 505. It can be understood that when the water level in the second chamber 206 reaches a certain height, the guide rod 401... Figure 8 At the indicated position, the height of float 402 on guide rod 401 will cause guide rod 401 to continue moving, moving rotating gear 403 into arc-shaped channel 505. This indicates that the water level in second chamber 206 has reached the expected height, allowing the water in second chamber 206 to be drained. At this time, because rotating gear 403 is within arc-shaped channel 505 and is meshed with driven gear 404, the guide rod 401, continuing its movement, will... The rotating gear 403 moves within the arc-shaped channel 505. As the rotating gear 403 meshes with the external tooth surface 501, the rotating gear 403, which continues to move within the arc-shaped channel 505, rotates. At this time, it synchronously drives the driven gear 404 to rotate. Under the linkage of the first transmission sprocket 405, the transmission belt 407, and the second transmission sprocket 406, the driven shaft 2021 rotates at a certain angle. When the rotating gear 403 disengages from the arc-shaped channel 505, the driven shaft 2021 also stops rotating.

[0090] As can be seen from the above description, when the first pretreatment tank 201 and the filter tank 202 are in a water storage state, the water level in the second chamber 206 is low. During the water storage process, the crushing mechanism crushes the suspended solids and garbage in the wastewater in the first pretreatment tank 201 and the second pretreatment tank 203.

[0091] When the water level in the second chamber 206 reaches a certain height, the rotating gear 403, the external tooth surface 501, and the driven gear 404 will mesh together. The continuously rotating linkage shaft 400, under the meshing linkage of the rotating gear 403, the external tooth surface 501, and the driven gear 404, will cause the driven shaft 2021 to rotate. At this time, the water injection valve group will be activated. When the rotating gear 403 disengages from the arc-shaped channel 505, the water injection valve group will complete the action of connecting to the new biological treatment tank 300. At this time, the wastewater in the second chamber 206 will enter the currently connected biological treatment tank 300 through the drainage pipe 305. After the water level in the second chamber 206 drops, the second chamber 206 will switch to a water storage state. At this time, the second chamber 206 will maintain a connection with the current biological treatment tank 300.

[0092] When the liquid level in the second chamber 206 reaches the specified height again, the switching action of the water injection valve group is repeated, and wastewater is injected into the new biological treatment tank 300. At this time, the previous biological treatment tank 300, which has been filled with wastewater, is simultaneously subjected to biological treatment. The wastewater that has been biologically treated is discharged through the corresponding purification outlet pipe 307.

[0093] Preferably, the top of the arc-shaped plate 500 is also provided with a guide block 502 with an adjustable tilt angle. Since the guide block 502 is used to guide the rotating gear 403, it can smoothly cut into the arc-shaped channel 505. Therefore, according to the liquid level requirements for the water injection valve assembly to generate action, the present invention can adaptively adjust the height of the end of the guide block 502. For example, when the liquid level in the second chamber 206 is at the M level, the moving guide rod 401 will cause the rotating gear 403 to cut into the arc-shaped channel 505, thereby driving the driven shaft 2021 to rotate. When it is necessary to make the rotating gear 403 cut into the arc-shaped channel 505 when the liquid level in the second chamber 206 is lower than the M level, the tilt angle of the guide block 502 can be adjusted so that the end of the guide block 502 moves down a certain distance, and the rotating gear 403 can cut into the arc-shaped channel 505 earlier so that the water injection valve assembly can perform switching action.

[0094] Specifically, such as Figure 6 , Figure 7 and Figure 10As shown, the guide block 502 is fixedly mounted on the hinge shaft 503, which is rotatably supported at the top of the arc plate 500. A driven gear ring 506 is coaxially fixed on the hinge shaft 503. The first pretreatment box 201 is height-adjustable and equipped with an adjusting column 508. A rack 507 that meshes with the driven gear ring 506 is provided on the adjusting column 508. Therefore, adjusting the height of the adjusting column 508 will cause the rack 507 to move relative to the driven gear ring 506, thereby causing the hinge shaft 503 to rotate at a certain angle, and thus adjusting the tilt angle of the guide block 502.

[0095] Furthermore, an adjusting ring 509 is fixedly installed on the first pretreatment box 201, and an adjusting column 508 is slidably disposed on the adjusting ring 509. An adjusting bolt 510 for fixing the adjusting column 508 is installed on the adjusting ring 509. In use, the adjusting bolt 510 is first removed, the height of the adjusting column 508 is manually adjusted to the required position, and then the adjusting bolt 510 is used to fix the adjusting column 508.

[0096] Furthermore, such as Figures 4-6 , Figure 12 As shown, the water injection valve assembly includes a rotating ring 304, which is coaxially and rotatably sealed on the end of the drainage pipe 305. A water inlet 306 is provided on the rotating ring 304. The water injection valve assembly also includes an outer cover 302, on which multiple purification inlet pipes 301 are arranged in a circumferential array at equal intervals. Each purification inlet pipe 301 is connected to a corresponding biochemical treatment tank 300.

[0097] Furthermore, a driven gear 303 is coaxially fixed on the outer ring of the rotating ring 304. The driven gear 303 meshes with the drive gear 2024 at the end of the driven shaft 2021. When the drive gear 2024 rotates, it drives the driven gear 303 to rotate by a certain angle, which in turn drives the rotating ring 304 to rotate by a certain angle, so that the water inlet 306 on the rotating ring 304 is aligned with the corresponding purification inlet pipe 301. At this time, the drain pipe 305 is connected to the currently aligned purification inlet pipe 301, so that the wastewater in the second chamber 206 can enter the corresponding biochemical treatment tank 300 through the drain pipe 305 and the purification inlet pipe 301.

[0098] As can be seen from the above description, when the liquid level in the second chamber 206 that can trigger the water injection valve group is adjusted, the liquid level in the biochemical treatment tank 300 is also controlled accordingly. In other words, the amount of wastewater injected into the biochemical treatment tank 300 can be controlled and is flexible in use.

[0099] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Other modifications can be readily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and examples shown and described herein.

Claims

1. An integrated treatment device for aquaculture wastewater, comprising a pretreatment unit (200) and multiple biochemical treatment tanks (300). The pretreatment device (200) includes a first pretreatment box (201) and a filter box (202) that are coaxially connected. The first pretreatment box (201) is equipped with a crushing mechanism, which includes a drive spindle (2014) that is coaxially rotatably disposed in the first pretreatment box (201), and a set of crushing long blades (2013) is fixedly installed on the drive spindle (2014). The communication chamber between the filter box (202) and the first pretreatment box (201) is the first chamber (205). A grid (2015) is provided between the first chamber (205) and the first pretreatment box (201), and a reducer (2016) is installed on the grid (2015). A linkage shaft (400) is coaxially rotatably arranged in the first chamber (205). One end of the linkage shaft (400) is connected to the output shaft of the reducer (2016), and the other end of the drive spindle (2014) is connected to the input shaft of the reducer (2016). Its features are: The filter box (202) also has a second chamber (206) which is connected to the first chamber (205). The inner diameter of the second chamber (206) is larger than that of the first chamber (205). The bottom side of the filter box (202) is connected to the drainage pipe (305), and the drainage pipe (305) is connected to multiple biochemical treatment tanks (300) through a water injection valve group; The second chamber (206) is also coaxially rotatably provided with a driven shaft (2021), one end of which is rotatably connected to the other end of the linkage shaft (400); The other end of the driven shaft (2021) extends to the outside of the filter box (202), and a drive gear (2024) is coaxially fixedly installed on the other end of the driven shaft (2021). The drive gear (2024) is linked with the water injection valve group. A guide rod (401) is also installed on the linkage shaft (400) located in the second chamber (206). A float (402) is slidably sleeved on the guide rod (401), and a rotating gear (403) is rotatably installed on one side of the float (402). The top end of the guide rod (401) is rotatably supported by a passive gear (404), and a first transmission sprocket (405) is coaxially fixedly mounted on the passive gear (404). A second transmission sprocket (406) is coaxially fixedly sleeved on the driven shaft (2021), and the second transmission sprocket (406) and the first transmission sprocket (405) are connected by a transmission chain belt (407). An arc-shaped plate (500) is fixedly installed on the inner wall of the first chamber (205) through a connecting side plate (504); An external toothed surface (501) is provided on the arc-shaped plate (500); An arc-shaped channel (505) is formed between the arc plate (500) and the inner wall of the first chamber (205); When the rotating gear (403) is inside the arc-shaped channel (505), the rotating gear (403) meshes with the outer tooth surface (501); The top of the arc plate (500) is also provided with a guide block (502) with an adjustable tilt angle.

2. The integrated wastewater treatment equipment for aquaculture as described in claim 1, characterized in that, The guide block (502) is fixedly installed on the hinge shaft (503), the hinge shaft (503) is rotatably supported at the top of the arc plate (500), and a driven gear ring (506) is coaxially fixed on the hinge shaft (503). The first pretreatment box (201) is height-adjustable and is provided with an adjusting column (508), and the adjusting column (508) is provided with a rack (507) that meshes with the driven gear ring (506). An adjusting ring (509) is fixedly installed on the first pretreatment box (201), and an adjusting column (508) is slidably installed on the adjusting ring (509). An adjusting bolt (510) for fixing the adjusting column (508) is installed on the adjusting ring (509).

3. The integrated wastewater treatment equipment for aquaculture as described in claim 2, characterized in that, The water injection valve assembly includes a rotating ring (304), which is coaxially rotated and sealed on the end of the drain pipe (305). A water inlet (306) is provided on the rotating ring (304). The water injection valve group also includes an outer casing (302), on which multiple purification inlet pipes (301) are arranged in a circumferential array at equal intervals, and each purification inlet pipe (301) is connected to the corresponding biochemical treatment tank (300); A driven gear (303) is coaxially fixed on the outer ring of the rotating ring (304), and the driven gear (303) meshes with the drive gear (2024) at the end of the driven shaft (2021).

4. The integrated wastewater treatment equipment for aquaculture as described in claim 2 or 3, characterized in that, The second chamber (206) is provided with a filter screen (2022), which has a funnel-shaped structure and the funnel opening of the filter screen (2022) faces the first chamber (205). A cleaning brush rod (2025) that mates with the filter surface of the filter screen (2022) is fixedly mounted on the driven shaft (2021) located in the second chamber (206).

5. The integrated wastewater treatment equipment for aquaculture as described in claim 4, characterized in that, The first pretreatment box (201) has a second pretreatment box (203) connected to both sides. The second pretreatment box (203) is rotatably equipped with a shredding blade assembly (2031), and the drive spindle (2014) and the mounting shaft of the shredding blade assembly (2031) are linked by gear transmission. The first pretreatment box (201), the filter box (202), the second pretreatment box (203), and multiple biochemical treatment tanks (300) are all fixedly installed on the frame (100); The frame (100) is also equipped with a drive motor (101) for driving the drive spindle (2014) to rotate. The output shaft of the drive motor (101) is connected to one end of the drive spindle (2014) by a sprocket transmission.

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