A pond aquaculture enhanced denitrification and dealkalization water purification device

Abstract

The present application relates to the technical field of denitrification and alkali reduction water purification, and discloses a pond aquaculture intensified denitrification and alkali reduction water purification equipment, which comprises a fixed long column, a partition plate fixedly connected to the outer side of the fixed long column, a motor fixedly connected to the top of the fixed long column, an inner penetrating rod fixedly connected to the drive shaft of the motor, and a bottom circular plate fixedly connected to the bottom of the inner penetrating rod. The pond aquaculture intensified denitrification and alkali reduction water purification equipment is characterized in that the partition plate is arranged in the circular casing to divide the internal area for the step-by-step addition of different reaction agents, preventing the purification effect from being affected by the difficulty in sequentially adding different reaction agents when the water purification steps are too many. The second inclined plate with an inclined surface is arranged at the bottom of the bottom circular plate to push the anti-overflow mechanism back and move, preventing the anti-overflow mechanism from being difficult to move back and the bottom circular plate from being stuck and difficult to rotate to other areas after moving down into the arc-shaped hole.

Description

Technical Field

[0001] This invention relates to the field of denitrification and alkalinity reduction water purification technology, specifically to an enhanced denitrification and alkalinity reduction water purification device for pond aquaculture. Background Technology

[0002] Pond aquaculture is an important aquaculture method. Driven by market demand and comparative advantage, the scale and output of aquaculture have increased rapidly, becoming an important way for farmers in various regions to increase their income. Strengthening denitrification, alkalinity reduction, and water purification are important measures to improve water quality in pond aquaculture. This is achieved by adding microbial preparations containing nitrifying and denitrifying bacteria to the pond for denitrification treatment, and by using acidic substances to neutralize alkaline substances in the water to reduce the alkalinity of the water. Finally, oxidants such as hydrogen peroxide and potassium permanganate can be used to disinfect and oxidize the water, removing organic matter and reducing substances to make the water clear and thus purifying the water. When purifying water bodies by removing nitrogen and reducing alkali, it is necessary to add different reagents multiple times. Existing water purification equipment is difficult to store multiple reagents at the same time and add them one by one, which makes the purification process cumbersome. Therefore, we propose an enhanced nitrogen removal and alkali reduction water purification equipment for pond aquaculture. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides an enhanced denitrification and alkali reduction water purification device for pond aquaculture, including a circular shell, a drainage hole at the bottom of the circular shell, a feed pipe connected to the top of the circular shell, an arc-shaped bottom column fixedly connected to the outer side of the circular shell, and a partitioned feeding device fixedly connected to the inner wall of the circular shell. The partitioned feeding device includes a fixed long column, with a partition plate fixedly connected to the outside of the fixed long column. By setting the partition plate inside the circular shell, the internal area is partitioned to facilitate the separate feeding of different reactants. This prevents the difficulty in sequentially feeding different reactants when there are many water purification steps, which would affect the purification effect. A motor is fixedly connected to the top of the fixed long column, and an inner through rod is fixedly connected to the drive shaft of the motor. A bottom circular plate is fixedly connected to the bottom of the inner through rod. An arc-shaped hole is opened at the bottom of the bottom circular plate. When the bottom circular plate continues to rotate, it drives the arc-shaped hole to rotate to a position aligned with the center of the partition plate. When the bottom circular plate rotates to a position aligned with the center of the partition plate, the bottom circular plate covers and seals all the drainage holes at the bottom of the circular shell. This prevents the drainage holes from being difficult to completely seal when adjusting the feeding amount, which would cause the reactants to be continuously fed and affect the water purification effect. There are three feed pipes, and the three feed pipes are distributed on the top of the circular shell. There are three arc-shaped bottom pillars, and the three arc-shaped bottom pillars are distributed on the outside of the circular shell. The bottom of the fixed long column passes through the circular sleeve and is fixedly connected to the circular sleeve. There are three partition plates, and the three partition plates are distributed on the outside of the fixed long column. The bottom of the inner through rod passes through the fixed long column and is rotatably connected to the fixed long column. The partition plate is fixedly connected to the inner wall of the circular casing on the side away from the fixed column, and the output end of the motor is fixedly connected to the top of the circular casing. An overflow prevention mechanism is fixedly connected to one side of the partition plate. A stirring mechanism is rotatably connected to the bottom of the bottom circular plate via a rotating bolt. A first inclined plate is fixedly connected to the bottom of the bottom circular plate near the arc-shaped hole, and a second inclined plate is fixedly connected to the bottom of the bottom circular plate near the other side of the arc-shaped hole. By setting the second inclined plate with a sloping surface at the bottom of the bottom circular plate, the overflow prevention mechanism is pushed up and moved back, preventing the overflow prevention mechanism from moving back after it has moved down into the arc-shaped hole and jamming the bottom circular plate, making it difficult to rotate to other areas. The amount of reactant added is adjusted and controlled by pushing and moving the overflow prevention mechanism in different positions through the second inclined plate, preventing the amount of reactant added to the water from being difficult to control through the drain hole, which would affect the purification effect of the water. A top-opening inclined groove is opened at the top of the second inclined plate. There are three overflow prevention mechanisms, and the three overflow prevention mechanisms are respectively distributed between the three partition plates. The first inclined plate and the second inclined plate are symmetrically arranged at the bottom of the bottom circular plate with the arc-shaped hole as the center.

[0004] Furthermore, the anti-overflow mechanism includes an arc-shaped conical plate, with a downward pressure spring fixedly connected to the bottom of the arc-shaped conical plate. A bottom connecting plate is fixedly connected to the bottom of the downward pressure spring, and side blocks are fixedly connected to both sides of the bottom connecting plate. By setting side blocks on both sides of the bottom connecting plate, the bottom connecting plate maintains a certain distance from the bottom of the inner wall of the circular casing when it moves downward, preventing the bottom connecting plate from being pushed down by the downward pressure spring and causing it to contact the bottom surface of the inner wall of the circular casing, thus covering and sealing the drain hole and making it difficult for the reactant to drain. A rounded corner block is fixedly connected to the bottom of the bottom connecting plate. When the bottom circular plate covers and seals the drain hole, the rounded corner block is always located inside the drain hole and performs an insertion-type seal, preventing the reactant inside the circular casing from moving downward and overflowing outward due to rotational contact between the drain hole and the bottom circular plate, which is difficult to handle. The smooth rounded corner surface at the bottom of the rounded corner block allows for sliding contact with the first inclined plate, facilitating the movement of the rounded corner block when it is pushed. The block is moved upwards into the drain hole to prevent it from getting stuck and difficult to push back up when the bottom plate rotates and drives the second inclined plate to rotate. The top of the rounded corner block is provided with a discharge vertical groove. By opening multiple discharge vertical grooves on the outside of the rounded corner block without affecting its rounded corner radius, it is convenient to adjust the passage and sealing of the reactant. This prevents the maximum radius of the rounded corner surface from being above the drain hole when the rounded corner block moves upwards into the drain hole, which would cause a small amount of reactant to still enter the drain hole and overflow as the bottom plate rotates. One side of the arc-shaped cone plate is fixedly connected to one side of the partition plate. Multiple pressure springs are provided and distributed at the bottom of the arc-shaped cone plate. Multiple rounded corner blocks are provided and distributed at the bottom of the bottom connecting plate, which is aligned with the drain hole. Multiple discharge vertical grooves are provided and distributed circumferentially on the outside of the rounded corner block.

[0005] Furthermore, the stirring mechanism includes a bottom connecting rod, on the outside of which a square push plate is fixedly connected. As the bottom connecting rod rotates, the square push plate stirs the reactant added to the water, ensuring the reactant is fully mixed. This prevents reactant from falling into only a certain area during addition, making it difficult to diffuse and fully mix in the water, resulting in poor purification. Side connecting rods are fixedly connected to both sides of the square push plate. By setting side connecting rods between the square plastic pad and the square push plate, a distance is created, allowing fish that are bumped time to swim away. This prevents fish that are bumped by the square plastic pad from being unable to quickly escape the area covered by the rotating square push plate, thus preventing further harm. A square plastic pad is fixedly connected to the end of the side connecting rod away from the square push plate. This is achieved by setting elastic square... As the square pusher rotates, the plastic pad makes flexible contact with the fish, driving them away and preventing the pusher from making hard contact with the fish and causing injury or affecting their growth. An arc-shaped connecting rod is fixedly connected to the outside of the bottom connecting rod, and an arc-shaped baffle is fixedly connected to the top of the arc-shaped connecting rod. By setting an arc-shaped baffle that works in conjunction with the bottom circular plate and covering and sealing the arc-shaped hole, the rounded corner block is always difficult to move down, preventing the rounded corner block inside the bottom circular plate from moving down and causing the reactant to leak out when it rotates past the drainage hole. The top of the bottom connecting rod is rotatably connected to the bottom of the bottom circular plate by a rotating bolt. There are three square pushers, and the three square pushers are distributed on the outside of the bottom connecting rod. There are multiple side connecting rods, and the multiple side connecting rods are distributed on both sides of the square pusher.

[0006] This invention provides an enhanced denitrification and alkalinity reduction water purification device for pond aquaculture. It has the following beneficial effects: 1. This enhanced denitrification and alkali reduction water purification equipment for pond aquaculture uses a partition plate inside a circular casing to divide the internal area for separate treatment, facilitating the phased addition of different reactants. This prevents difficulties in sequentially adding different reactants when there are multiple purification steps, which could affect the purification effect. When the bottom circular plate covers and seals the drainage hole, the rounded corner block is always positioned inside the drainage hole and inserts to seal it, preventing the reactants inside the circular casing from shifting down to the drainage hole and overflowing due to rotational contact with the bottom circular plate. The square push plate, rotating with the bottom connecting rod, stirs the reactants added to the water, ensuring they are fully mixed. This prevents reactants from different areas from only falling into a certain area during addition, which would result in poor purification effect.

[0007] 2. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture is equipped with a zoned feeding device. A partition plate inside the circular casing divides the internal area for separate feeding of different reactants. This prevents difficulties in sequentially adding different reactants when multiple purification steps are involved, thus ensuring effective purification. A second inclined plate with a sloping surface at the bottom of the circular plate pushes the overflow prevention mechanism upwards and backwards, preventing it from being difficult to retract after falling into the arc-shaped hole and thus keeping the bottom circular plate in place. Rotating to other areas, the overflow prevention mechanism in different positions is pushed up and moved back by the second inclined plate to adjust and control the amount of reactant added. This prevents the difficulty in controlling the amount of reactant added through the drain holes when adding reactant to the water, which would affect the water purification effect. When the bottom circular plate continues to rotate, it drives the arc-shaped hole to rotate to a position aligned with the center of the partition plate. When the bottom circular plate covers and seals all the drain holes at the bottom of the circular casing, it prevents the difficulty in completely sealing the drain holes when adjusting the amount of reactant added, which would lead to continuous addition of reactant and affect the water purification effect.

[0008] 3. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture is equipped with an overflow prevention mechanism. When the bottom circular plate covers and seals the drainage hole, the rounded corner block is always positioned inside the drainage hole and performs an insertion-type seal. This prevents the reactant inside the circular casing from shifting downwards and overflowing outwards due to rotational contact between the drainage hole and the bottom circular plate, which is difficult to handle. The smooth rounded corner surface at the bottom of the rounded corner block allows it to slide in contact with the first inclined plate, facilitating its upward movement back into the drainage hole when pushed. This prevents the bottom circular plate from causing the second inclined plate to rotate and come into contact with the vertical surface of the block, thus preventing jamming and making it difficult to push the block. The bottom plate is reset upwards by setting side blocks on both sides to ensure that it always maintains a certain distance from the bottom of the inner wall of the circular casing when it moves downwards. This prevents the bottom plate from being covered and blocked by the bottom surface of the inner wall of the circular casing when it moves downwards due to the thrust of the downward spring, which would make it difficult for the reactant to be discharged. Multiple discharge vertical grooves that do not affect the radius of the rounded corner block are opened on the outside of the rounded corner block to facilitate the adjustment of the reactant passage and blockage. This prevents the maximum radius of the rounded corner surface from being located above the drain hole when the rounded corner block moves upwards into the drain hole, which would cause a small amount of reactant to still enter the drain hole and overflow as the bottom circular plate rotates.

[0009] 4. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture is equipped with a stirring mechanism. An arc-shaped baffle is installed on the bottom circular plate, and the arc-shaped holes are covered and sealed, preventing the rounded corner blocks from shifting downwards. This prevents the reactant from leaking out when the bottom circular plate rotates past the drainage holes. The square push plate, rotating with the bottom connecting rod, stirs the reactant in the water, ensuring thorough mixing. This prevents reactant from falling into only a limited area and failing to diffuse and mix properly, resulting in poor purification. Elastic square plastic pads on both sides of the square push plate gently contact the fish as it rotates, preventing hard contact and injury to the fish. A side connecting rod separates the square plastic pads from the square push plate, allowing fish that are bumped to swim away. This prevents fish that are bumped by the square plastic pads from being unable to quickly escape the area covered by the rotating push plate, thus preventing further injury. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the bottom structure of the enhanced denitrification and alkali reduction water purification equipment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the enhanced denitrification and alkali reduction water purification equipment of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the partitioned feeding device of the present invention; Figure 4 This is a schematic diagram of the bottom side section of the partitioned feeding device of the present invention; Figure 5 This is a partial structural diagram of the anti-overflow mechanism of the present invention; Figure 6 This is a schematic diagram of the side structure of the anti-overflow mechanism of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the stirring mechanism of the present invention; Figure 8 This is a schematic diagram of the stirring mechanism of the present invention.

[0011] In the diagram: 1. Circular casing; 2. Drainage hole; 3. Feed pipe; 4. Arc-shaped bottom column; 5. Zoned feeding device; 501. Fixed long column; 502. Zoned plate; 503. Motor; 504. Inner rod; 505. Bottom circular plate; 506. Arc-shaped hole; 507. Overflow prevention mechanism; 508. Stirring mechanism; 509. First inclined plate; 510. Second inclined plate; 511. Top-opening inclined groove; 5071. Arc-shaped cone plate; 5072. Downward pressure spring; 5073. Bottom connecting plate; 5074. Side stop block; 5075. Rounded corner block; 5076. Discharge vertical groove; 5081. Bottom connecting rod; 5082. Square push plate; 5083. Side connecting rod; 5084. Square plastic pad; 5085. Arc-shaped connecting rod; 5086. Arc-shaped baffle. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figures 1-4 The present invention provides a water purification device for enhanced denitrification and alkali reduction in pond aquaculture, including a circular shell 1, a drainage hole 2 at the bottom of the circular shell 1, a feed pipe 3 connected to the top of the circular shell 1, an arc-shaped bottom column 4 fixedly connected to the outer side of the circular shell 1, and a partitioned feeding device 5 fixedly connected to the inner wall of the circular shell 1. The partitioned feeding device 5 includes a fixed long column 501, a partition plate 502 fixedly connected to the outside of the fixed long column 501, a motor 503 fixedly connected to the top of the fixed long column 501, an inner through rod 504 fixedly connected to the drive shaft of the motor 503, a bottom circular plate 505 fixedly connected to the bottom of the inner through rod 504, and an arc-shaped hole 506 opened at the bottom of the bottom circular plate 505. There are three feed pipes 3, and the three feed pipes 3 are distributed on the top of the circular shell 1. There are three arc-shaped bottom pillars 4, and the three arc-shaped bottom pillars 4 are distributed on the outside of the circular shell 1. The bottom of the fixed long column 501 passes through the circular sleeve 1 and is fixedly connected to the circular sleeve 1. Three partition plates 502 are provided, and the three partition plates 502 are distributed on the outside of the fixed long column 501. The bottom of the inner through rod 504 passes through the fixed long column 501 and is rotatably connected to the fixed long column 501. The side of the partition plate 502 away from the fixed column 501 is fixedly connected to the inner wall of the circular housing 1, and the output end of the motor 503 is fixedly connected to the top of the circular housing 1. An overflow prevention mechanism 507 is fixedly connected to one side of the partition plate 502. A stirring mechanism 508 is rotatably connected to the bottom of the bottom circular plate 505 via a rotating bolt. A first inclined plate 509 is fixedly connected to the bottom of the bottom circular plate 505 near the arc-shaped hole 506. A second inclined plate 510 is fixedly connected to the bottom of the bottom circular plate 505 near the arc-shaped hole 506 on the other side. A top-opening inclined groove 511 is provided on the top of the second inclined plate 510. Three overflow prevention mechanisms 507 are provided, and the three overflow prevention mechanisms 507 are respectively distributed between the three partition plates 502. The first inclined plate 509 and the second inclined plate 510 are symmetrically arranged at the bottom of the bottom circular plate 505 with the arc-shaped hole 506 as the center. In use, different reactants are put into the partition feeding device 5 from different feed pipes 3. The partition feeding device 5 controls the amount of reactant added to different areas with the cooperation of the overflow prevention mechanisms 507. The reactants added to the water are stirred and fully mixed in the water by the stirring mechanism 508. Different reactants are placed in the three partition plates 502 respectively. The three regions separated by the partition plate 502 are divided into zones by the partition plate 502 inside the circular housing 1 to facilitate the phased addition of different reactants. When different steps of reactant addition are required for water purification, the motor 503 is started to drive the inner rod 504 to rotate. The rotation of the inner rod 504 drives the bottom circular plate 505 to rotate. When the bottom circular plate 505 rotates, it drives the arc-shaped hole 506 to rotate as well. When the corresponding reactant needs to be added, the arc-shaped hole 506 is rotated to the bottom of the drainage hole 2 of that zone. At this time, the overflow prevention mechanism 507 moves down and is released. The sealing of the drain hole 2 causes the reactant inside the circular casing 1 to be released downwards. The bottom circular plate 505 continues to rotate, causing the first inclined plate 509 and the second inclined plate 510 at the bottom to rotate together. When the bottom circular plate 505 rotates, the second inclined plate 510 contacts the anti-overflow mechanism 507 in the arc-shaped hole 506 and pushes the anti-overflow mechanism 507 upwards through the inclined surface to seal the drain hole 2. The anti-overflow mechanism 507 is pushed upwards and moved back by the second inclined plate 510 with an inclined surface at the bottom of the bottom circular plate 505. The second inclined plate 510 controls the anti-overflow mechanism 507 in different positions. The amount of reactant added is adjusted by pushing upwards and moving backwards. When the bottom circular plate 505 continues to rotate, it drives the arc-shaped hole 506 to rotate to the position aligned with the center of the partition plate 502. The bottom circular plate 505 covers and seals all the drainage holes 2 at the bottom of the circular shell 1. After the reactant is added, the bottom circular plate 505 is reversed by the motor 503. When the bottom circular plate 505 is reversed, it drives the bottom stirring mechanism 508 to rotate together and covers and seals the arc-shaped hole 506. When the stirring mechanism 508 rotates, it stirs and diffuses the reactant added to the water, so that the reactant reacts fully with the water.

[0014] Please see Figures 1-8This invention provides an enhanced denitrification and alkali reduction water purification device for pond aquaculture: an overflow prevention mechanism 507 includes an arc-shaped cone plate 5071, a downward pressure spring 5072 fixedly connected to the bottom of the arc-shaped cone plate 5071, a bottom connecting plate 5073 fixedly connected to the bottom of the downward pressure spring 5072, side blocks 5074 fixedly connected to both sides of the bottom connecting plate 5073, a rounded corner block 5075 fixedly connected to the bottom of the bottom connecting plate 5073, and a discharge vertical trough opened at the top of the rounded corner block 5075. 5076, one side of the arc-shaped cone plate 5071 is fixedly connected to one side of the partition plate 502, multiple pressure springs 5072 are provided, and multiple pressure springs 5072 are distributed at the bottom of the arc-shaped cone plate 5071, multiple rounded corner blocks 5075 are provided, and multiple rounded corner blocks 5075 are distributed at the bottom of the bottom connecting plate 5073 and aligned with the drain hole 2, and multiple discharge vertical channels 5076 are provided, and multiple discharge vertical channels 5076 are distributed in a circle on the outside of the rounded corner blocks 5075; The stirring mechanism 508 includes a bottom connecting rod 5081, a square push plate 5082 fixedly connected to the outer side of the bottom connecting rod 5081, side connecting rods 5083 fixedly connected to both sides of the square push plate 5082, a square plastic pad 5084 fixedly connected to the end of the side connecting rod 5083 away from the square push plate 5082, an arc-shaped connecting rod 5085 fixedly connected to the outer side of the bottom connecting rod 5081, an arc-shaped baffle 5086 fixedly connected to the top of the arc-shaped connecting rod 5085, and the top of the bottom connecting rod 5081 rotatably connected to the bottom of the bottom circular plate 505 via a rotating bolt. Three square push plates 5082 are provided, distributed on the outer side of the bottom connecting rod 5081. Multiple side connecting rods 5083 are provided, distributed on the square push plates. On both sides of 5082, during use, when the bottom circular plate 505 covers and seals the drain hole 2, the rounded corner block 5075 is always located inside the drain hole 2 and performs an insertion-type seal on the drain hole 2. When the arc-shaped hole 506 on the bottom circular plate 505 rotates to the bottom of the drain hole 2, the downward pressure spring 5072 pushes the bottom connecting plate 5073, the side stop block 5074 and the rounded corner block 5075 downward together through the extension force. The rounded corner block 5075 passes through the drain hole 2 and moves downward continuously, allowing the reactant to be discharged downward through the discharge vertical channel 5076 and the drain hole 2. The smooth rounded corner surface at the bottom of the rounded corner block 5075 is set to slide in contact with the first inclined plate 509, which facilitates the rounded corner block 5075 to move upward back into the drain hole 2 when it is pushed. The side baffle 5074 ensures that the bottom connecting plate 5073 maintains a certain distance from the bottom of the inner wall of the circular casing 1 when it moves downward. Multiple discharge vertical grooves 5076, which do not affect the radius of the rounded corners, are opened on the outside of the rounded corner block 5075 to facilitate the adjustment of the reactant's passage and sealing. After the reactant is added, the motor 503 drives the bottom circular plate 505 to reverse. When the bottom circular plate 505 reverses, it also drives the first inclined plate 509 and the second inclined plate 510 at the bottom to reverse as well. At this time, the stirring mechanism 508, which is rotatably connected to the bottom of the bottom circular plate 505, does not rotate with the rotation of the bottom circular plate 505. When the second inclined plate 510 rotates, it gradually approaches the arc-shaped baffle 5086, causing the arc-shaped baffle 5086 to pass through the top-opening inclined groove 511 and contact the first inclined plate 509. At this time, the arc-shaped baffle... The baffle 5086 continuously covers and seals the arc-shaped hole 506. By setting the arc-shaped baffle 5086 in conjunction with the bottom circular plate 505 and covering and sealing the arc-shaped hole 506, the rounded corner block 5075 is always difficult to move down. After the first inclined plate 509 contacts the arc-shaped baffle 5086, it pushes the arc-shaped baffle 5086 to rotate together at the bottom of the bottom circular plate 505. When the arc-shaped baffle 5086 rotates, it drives the bottom connecting rod 5081 and the square push plate 5082 to rotate together through the arc-shaped connecting rod 5085. When the square push plate 5082 rotates with the bottom connecting rod 5081, it stirs the reactant added to the water, so that the reactant is fully mixed in the water. When the square push plate 5082 rotates, it drives the side connecting rods 5083 on both sides and the square plastic pad 5084 to rotate together.By placing elastic square plastic pads 5084 on both sides of the square push plate 5082, the fish are driven away through flexible contact as the push plate 5082 rotates. A side connecting rod 5083 is placed between the square plastic pads 5084 and the square push plate 5082 to create a distance, allowing the impacted fish time to swim away.

[0015] In operation, different reactants are fed into the partitioned feeding device 5 through different feed pipes 3. The partitioned feeding device 5, in conjunction with the overflow prevention mechanism 507, controls the amount of reactant added to different areas. The reactants added to the water are thoroughly mixed by the stirring mechanism 508. Different reactants are placed in three areas separated by three partition plates 502. The partition plates 502 inside the circular casing 1 facilitate the phased addition of different reactants. When different steps of reactant addition are needed for water purification, the motor 503 is started to rotate the inner rod 504. The rotation of the inner rod 504 rotates the bottom circular plate 505. When the bottom circular plate 505 rotates, it drives the arc-shaped hole 506 to rotate as well. When the corresponding reactant needs to be added, the arc-shaped hole 506 is rotated to the bottom of the drain hole 2 in that area. At this time, the anti-overflow mechanism 507 moves down to release the blockage of the drain hole 2, allowing the reactant inside the circular casing 1 to be added downwards. The bottom circular plate 505 continues to rotate, driving the first inclined plate 509 and the second inclined plate 510 at the bottom to rotate together. When the bottom circular plate 505 rotates, the second inclined plate 510 contacts the anti-overflow mechanism 507 in the arc-shaped hole 506 and pushes the anti-overflow mechanism 507 upwards through the inclined surface to block the drain hole 2. By setting the second inclined plate 510 with an inclined surface at the bottom of the bottom circular plate 505, the anti-overflow mechanism 507 is pushed upwards and moved back. The inclined plate 510 pushes and moves the anti-overflow mechanism 507 at different positions to adjust and control the amount of reactant added. The bottom circular plate 505 continues to rotate, causing the arc-shaped hole 506 to rotate until it is aligned with the center of the partition plate 502. The bottom circular plate 505 then covers and seals all the drainage holes 2 at the bottom of the circular casing 1. After the reactant is added, the motor 503 drives the bottom circular plate 505 to reverse. When the bottom circular plate 505 reverses, it drives the bottom stirring mechanism 508 to rotate as well, covering and sealing the arc-shaped hole 506. As the stirring mechanism 508 rotates, it stirs and diffuses the reactant in the water, ensuring the reactant reacts fully with the water. When the bottom circular plate 505 covers and seals the drainage holes 2, the rounded corner block 5075 is always positioned... The drain hole 2 is plugged by insertion. When the arc-shaped hole 506 on the bottom circular plate 505 rotates to the bottom of the drain hole 2, the downward spring 5072 pushes the bottom connecting plate 5073, side stop block 5074 and rounded corner block 5075 downward together through the extension force. The rounded corner block 5075 passes through the drain hole 2 and moves downward, allowing the reactant to be discharged downward through the discharge vertical channel 5076 and the drain hole 2. The smooth rounded corner surface at the bottom of the rounded corner block 5075 is set to slide in contact with the first inclined plate 509, which facilitates the rounded corner block 5075 to move upward back into the drain hole 2 when it is pushed. The side stop blocks 5074 on both sides of the bottom connecting plate 5073 ensure that the bottom connecting plate 5073 always maintains a certain distance from the bottom of the inner wall of the circular shell 1 when it moves downward.Multiple discharge troughs 5076, which do not affect the radius of the rounded corner block 5075, are opened on the outside of the rounded corner block 5075 to facilitate the adjustment of the reactant passage and sealing. After the reactant is added, the bottom circular plate 505 is reversed by the motor 503. When the bottom circular plate 505 reverses, the first inclined plate 509 and the second inclined plate 510 at the bottom also reverse. At this time, the stirring mechanism 508 connected to the bottom of the bottom circular plate 505 does not rotate with the rotation of the bottom circular plate 505. When the second inclined plate 510 rotates, it gradually approaches the arc-shaped baffle 5086 and makes the arc-shaped baffle 5086 pass through the top opening inclined trough 511 and contact the first inclined plate 509. At this time, the arc-shaped baffle 5086 constantly covers and seals the arc-shaped hole 506. By setting the arc-shaped baffle 5086 that is linked to the bottom circular plate 505 and covering and sealing the arc-shaped hole 506, the rounded corner block 5075 is initially Unable to descend further, the first inclined plate 509 contacts the arc-shaped baffle 5086, pushing the arc-shaped baffle 5086 to rotate together with the bottom circular plate 505. As the arc-shaped baffle 5086 rotates, it drives the bottom connecting rod 5081 and the square push plate 5082 to rotate together via the arc-shaped connecting rod 5085. The square push plate 5082, rotating with the bottom connecting rod 5081, stirs the reactant in the water, ensuring thorough mixing. The rotation of the square push plate 5082 also drives the side connecting rods 5083 and the square plastic pads 5084 to rotate together. The elastic square plastic pads 5084 on both sides of the square push plate 5082, as they rotate, make soft contact with the fish, driving them away. The side connecting rods 5083 between the square plastic pads 5084 and the square push plate 5082 create a distance, allowing the impacted fish time to swim away.

[0016] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A water purification device for enhanced nitrogen removal and alkali reduction in pond aquaculture, comprising a circular casing (1), characterized in that: The bottom of the circular shell (1) is provided with a drain hole (2), the top of the circular shell (1) is connected to a feed pipe (3), the outer side of the circular shell (1) is fixedly connected with an arc-shaped bottom column (4), and the inner wall of the circular shell (1) is fixedly connected with a partitioned feeding device (5). The partitioned feeding device (5) includes a fixed long column (501), a partition plate (502) is fixedly connected to the outside of the fixed long column (501), a motor (503) is fixedly connected to the top of the fixed long column (501), an inner through rod (504) is fixedly connected to the drive shaft of the motor (503), a bottom circular plate (505) is fixedly connected to the bottom of the inner through rod (504), and an arc-shaped hole (506) is opened at the bottom of the bottom circular plate (505).

2. The enhanced denitrification and alkalinity reduction water purification equipment for pond aquaculture according to claim 1, characterized in that: There are three feed pipes (3), and the three feed pipes (3) are distributed on the top of the circular shell (1). There are three arc-shaped bottom pillars (4), and the three arc-shaped bottom pillars (4) are distributed on the outside of the circular shell (1).

3. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 1, characterized in that: The bottom of the fixed long column (501) passes through the circular sleeve (1) and is fixedly connected to the circular sleeve (1). There are three partition plates (502), and the three partition plates (502) are distributed on the outside of the fixed long column (501). The bottom of the inner through rod (504) passes through the fixed long column (501) and is rotatably connected to the fixed long column (501).

4. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 1, characterized in that: The partition plate (502) is fixedly connected to the inner wall of the circular casing (1) on the side away from the fixed column (501), and the output end of the motor (503) is fixedly connected to the top of the circular casing (1).

5. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 1, characterized in that: An overflow prevention mechanism (507) is fixedly connected to one side of the partition plate (502). A stirring mechanism (508) is rotatably connected to the bottom of the bottom circular plate (505) via a rotating bolt. A first inclined plate (509) is fixedly connected to the bottom of the bottom circular plate (505) near the arc-shaped hole (506). A second inclined plate (510) is fixedly connected to the bottom of the bottom circular plate (505) near the arc-shaped hole (506). A top-opening inclined groove (511) is provided on the top of the second inclined plate (510).

6. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 5, characterized in that: There are three overflow prevention mechanisms (507), and the three overflow prevention mechanisms (507) are respectively distributed between the three partition plates (502). The first inclined plate (509) and the second inclined plate (510) are symmetrically arranged at the bottom of the bottom circular plate (505) with the arc hole (506) as the center.

7. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 5, characterized in that: The overflow prevention mechanism (507) includes an arc-shaped cone plate (5071), a downward pressure spring (5072) is fixedly connected to the bottom of the arc-shaped cone plate (5071), a bottom connecting plate (5073) is fixedly connected to the bottom of the downward pressure spring (5072), a side stop block (5074) is fixedly connected to both sides of the bottom connecting plate (5073), a rounded corner block (5075) is fixedly connected to the bottom of the bottom connecting plate (5073), and a discharge vertical groove (5076) is opened on the top of the rounded corner block (5075).

8. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 7, characterized in that: One side of the arc-shaped cone plate (5071) is fixedly connected to one side of the partition plate (502). Multiple compression springs (5072) are provided, and multiple compression springs (5072) are distributed at the bottom of the arc-shaped cone plate (5071). Multiple rounded corner blocks (5075) are provided, and multiple rounded corner blocks (5075) are distributed at the bottom of the bottom connecting plate (5073) and aligned with the drain hole (2). Multiple discharge vertical channels (5076) are provided, and multiple discharge vertical channels (5076) are distributed circumferentially outside the rounded corner blocks (5075).

9. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 5, characterized in that: The stirring mechanism (508) includes a bottom connecting rod (5081), a square push plate (5082) is fixedly connected to the outer side of the bottom connecting rod (5081), side connecting rods (5083) are fixedly connected to both sides of the square push plate (5082), a square plastic pad (5084) is fixedly connected to the end of the side connecting rod (5083) away from the square push plate (5082), an arc-shaped connecting rod (5085) is fixedly connected to the outer side of the bottom connecting rod (5081), and an arc-shaped baffle (5086) is fixedly connected to the top of the arc-shaped connecting rod (5085).

10. The enhanced denitrification and alkali reduction water purification equipment for pond aquaculture according to claim 9, characterized in that: The top of the bottom connecting rod (5081) is rotatably connected to the bottom of the bottom circular plate (505) by a rotating bolt. There are three square push plates (5082), and the three square push plates (5082) are distributed on the outside of the bottom connecting rod (5081). There are multiple side connecting rods (5083), and the multiple side connecting rods (5083) are distributed on both sides of the square push plate (5082).

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