CN210595422U

CN210595422U - Biochemical treatment device for aquaculture wastewater

Info

Publication number: CN210595422U
Application number: CN201921101363.9U
Authority: CN
Inventors: 鞠佃强
Original assignee: Beijing Gold Harvest Water Engineering Co ltd
Current assignee: Beijing Gold Harvest Water Engineering Co ltd
Priority date: 2019-07-13
Filing date: 2019-07-13
Publication date: 2020-05-22
Anticipated expiration: 2029-07-13

Abstract

The utility model is suitable for a sewage treatment production technical field provides a biochemical treatment device of aquaculture wastewater, including rotary tank, intake pipe and strutting arrangement, the intake pipe passes rotary tank import, and one end is located rotary tank, and the intake pipe other end passes through strutting arrangement and connects rotary tank, is equipped with the valve in the intake pipe, valve housing, shutoff piece and the regulating part that is located the shutoff piece, be equipped with water inlet and delivery port on the casing, and the water inlet diameter is greater than the delivery port diameter; the adjusting piece is sleeved with a rotating piece. The supporting device comprises a base and a support, one end of the support is connected with the support through a rotating shaft, the other end of the support is provided with a lifting device, the lifting device comprises a driving part, a gear set, a threaded rod and a lifting rod sleeved with the threaded rod, the upper end of the lifting rod is connected with the support through a universal ball, and an auxiliary frame is sleeved on the lifting rod. Therefore, the utility model discloses can carry out effective control to ozone let in volume, improve work efficiency.

Description

Biochemical treatment device for aquaculture wastewater

Technical Field

The utility model relates to a sewage treatment production technical field especially relates to a biochemical treatment device of aquaculture wastewater.

Background

With the improvement of environmental protection requirements, the treatment standard of the wastewater of the farm is more and more strict.

Commonly used wastewater treatment processes generally include: natural settling, zeolite filtering, purifying, organic matter removing, oxygen increasing, sterilizing and the like. According to different waste water types and standard requirements, secondary precipitation can be properly added or certain procedures can be correspondingly reduced.

The process of wastewater treatment requires the use of settling ponds and associated equipment. For the farm, the construction and maintenance cost of the sedimentation tank is low, and the purchase and maintenance cost of various devices is high. The time for precipitation and purification in the wastewater treatment process is longer, and the time for treatment by adopting equipment is shorter, so that the utilization rate of the equipment is low, and the treatment cost is increased. This also causes that the willingness of many farms to treat the wastewater is not high, and even a single farm only carries out precipitation to remove large blocks of impurities and then discharges the wastewater, thus causing great damage to the environment.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

To foretell defect, the utility model aims to provide a biochemical treatment device of breed waste water, it can be when sewage treatment, guarantees ozone and lets in the volume, improves work efficiency.

In order to achieve the purpose, the utility model provides a biochemical treatment device of aquaculture wastewater, including rotary tank, intake pipe and strutting arrangement, the intake pipe passes rotary tank import, and one end is located rotary tank, the intake pipe other end passes through strutting arrangement and connects rotary tank, be equipped with the valve in the intake pipe, valve housing, shutoff piece and the regulating part that is located the shutoff piece, be equipped with water inlet and delivery port on the casing, and the water inlet diameter is greater than the delivery port diameter, the shutoff piece includes first shutoff piece and second shutoff piece, and the first shutoff piece passes through elastic component and connects the second shutoff piece, all be equipped with the hypotenuse on first shutoff piece and the second shutoff piece, the hypotenuse is the symmetry setting; the adjusting piece is sleeved with a rotating piece, a limiting groove is formed in the rotating piece, the diameter of the lower end of the adjusting piece is larger than that of the upper end of the adjusting piece, a limiting rod is arranged on the adjusting piece and slides in the limiting groove, and the diameter of the lower end of the adjusting piece is equal to or larger than that of an accommodating space formed by bevel edges; the supporting device comprises a base and a support, one end of the support is connected with the support through a rotating shaft, the other end of the support is provided with a lifting device, the lifting device comprises a driving part, a gear set, a threaded rod and a lifting rod sleeved with the threaded rod, the upper end of the lifting rod is connected with the support through a universal ball, an auxiliary frame is sleeved on the lifting rod, and the auxiliary frame is connected with the base through a shell.

According to the utility model discloses a biochemical treatment device of aquaculture wastewater, the baffle is installed to first shutoff piece and second shutoff piece junction, be equipped with the spout that holds first shutoff piece and second shutoff piece and remove on the baffle.

According to the utility model discloses a biochemical treatment device of aquaculture wastewater, install the ball on first shutoff piece and the second shutoff piece, just ball butt spout.

According to the utility model discloses a biochemical treatment device of aquaculture wastewater, be equipped with spacing hole on the first shutoff piece, just the elastic component is located spacing downthehole, the elastic component is the spring, just the spring equidistance is installed threely.

According to the utility model discloses a biochemical treatment device of waste water breeds, second shutoff piece one end is the arc setting, just the arc diameter is the shutoff piece height.

According to the utility model discloses a biochemical treatment device of waste water breeds, install the pulley on the gag lever post, just pulley butt spacing groove.

According to the utility model discloses a biochemical treatment device of aquaculture wastewater, regulating part lower extreme both sides have spacing arch, just spacing arch is the arc setting.

According to the utility model discloses a biochemical treatment device of waste water breeds, regulating part upper end fixedly connected with cylinder, just cylinder connection control device.

According to the utility model discloses a biochemical treatment device of waste water breeds, the intake pipe passes through mount linking bridge, just intake-tube connection ozone generator.

According to the utility model discloses a biochemical treatment device of breed waste water, the gear train includes straight-teeth gear and the bevel gear of perpendicular installation, the power part output is connected to bevel gear, straight-teeth gear fixed connection threaded rod, the bolster has still been cup jointed on the lifter, the bolster includes the movable plate of elastic component and connection elastic component.

The utility model provides a biochemical treatment device of aquaculture wastewater, including rotary tank, intake pipe and strutting arrangement, the intake pipe passes rotary tank import, and one end is located the rotary tank, the intake pipe other end passes through strutting arrangement and connects rotary tank, be equipped with the valve in the intake pipe, valve housing, shutoff piece and the regulating part that is located the shutoff piece, be equipped with water inlet and delivery port on the casing, just the water inlet diameter is greater than the delivery port diameter, utilizes water inlet and delivery port to lead rivers, makes its effect flow to carry out effective control through shutoff piece and regulating part convection velocity, improve work efficiency. The blocking piece comprises a first blocking piece and a second blocking piece, the first blocking piece is connected with the second blocking piece through an elastic piece, the first blocking piece and the second blocking piece are both provided with bevel edges, the bevel edges are symmetrically arranged, the elastic pieces are used for connecting the blocking pieces, so that the blocking pieces are effectively reset, and meanwhile, the blocking pieces with the bevel edges are used for forming an accommodating space, so that the adjusting piece can effectively move; cup joint a rotating member on the regulating part, be equipped with the spacing groove on the rotating member, regulating part lower extreme diameter is greater than the upper end diameter, just be equipped with the gag lever post on the regulating part, the gag lever post slides in the spacing inslot, regulating part lower extreme diameter equals or is greater than the accommodation space diameter that the hypotenuse formed, utilizes the rotating member to drive regulating part and shutoff piece realization rotatory, is convenient for adjust the velocity of flow, utilizes the regulating part of equidistance from top to bottom simultaneously to adjust the distance between first shutoff piece and the second shutoff piece, is convenient for control the velocity of flow, improves work efficiency. The utility model discloses a rotary tank, including support, elevating gear, universal ball linking bridge, elevating gear, drive part, gear train, threaded rod, universal ball linking bridge, elevating gear, universal ball linking bridge, elevating gear. The utility model has the advantages that: control the distance between the shutoff piece through the regulating part to can carry out accurate control and regulation to the gas flow rate, guarantee stability and accuracy in the working process, improve work efficiency, can adjust the angle of rotary tank simultaneously, make it realize the slope, the liquid outflow in the rotary tank of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the valve of the present invention;

fig. 3 is a schematic structural view of a first block piece and a second block piece according to the present invention;

FIG. 4 is a schematic structural view of the adjusting member of the present invention;

fig. 5 is a cross-sectional view of a rotating member in the present invention;

FIG. 6 is a schematic view of the valve closing structure of the present invention;

fig. 7 is a schematic view of the opening structure of the valve of the present invention;

fig. 8 is a partial cross-sectional view of the present invention;

fig. 9 is a schematic structural view of the lifting device of the present invention;

in the figure, 1-valve, 11-water inlet, 12-water outlet, 13-shell, 21-first plugging piece, 22-second plugging piece, 23-elastic piece, 3-adjusting piece, 31-limiting rod, 32-limiting bulge, 4-rotating piece, 41-limiting groove, 5-air inlet pipe, 6-rotating tank, 61-motor, 62-rack, 63-guide plate, 64-outlet, 71-base, 72-bracket, 73-rotating shaft, 8-lifting device, 81-power piece, 821-straight gear, 822-bevel gear, 83-threaded rod, 84-lifting rod, 85-auxiliary bracket, 861-elastic piece and 862-moving plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

Referring to fig. 1 ~ 5, the utility model provides a biochemical treatment device of aquaculture waste water, including rotatory jar 6, intake pipe 5 and strutting arrangement, intake pipe 5 passes rotatory jar 6 import, and one end is located rotatory jar 6, the intake pipe 5 other end passes through strutting arrangement and connects rotatory jar 6, be equipped with valve 1 in the intake pipe 5, valve 1 includes casing 1, shutoff piece and is located the regulating part 3 of shutoff piece, be equipped with water inlet 11 and delivery port 12 on the casing 1, just water inlet 11 diameter is greater than delivery port 12 diameter, utilizes water inlet 11 and delivery port 12 to lead rivers, makes its effect flow to carry out effective control through shutoff piece and regulating part 3 convection velocity, improve work efficiency. The blocking piece comprises a first blocking piece 21 and a second blocking piece 22, the first blocking piece 21 is connected with the second blocking piece 22 through an elastic piece 233, inclined edges are arranged on the first blocking piece 21 and the second blocking piece 22 and are symmetrically arranged, the blocking pieces are connected through the elastic piece 23, effective resetting is achieved, meanwhile, the blocking pieces with the inclined edges are used for forming an accommodating space, and effective movement of the adjusting piece is facilitated; cup joint a rotating member 4 on regulating part 3, be equipped with spacing groove 41 on the rotating

member

4, 3 lower extreme diameters of regulating part are greater than the upper end diameter, just be equipped with gag lever post 31 on the regulating part 3, gag lever post 31 slides in spacing groove 41, the 3 lower extreme diameters of regulating part equal to or are greater than the accommodation space diameter that the hypotenuse formed, utilize rotating member 4 to drive regulating part 3 and shutoff piece and realize rotatoryly, are convenient for adjust the velocity of flow, utilize the regulating part 3 of equidistance from top to bottom simultaneously to adjust the distance between first shutoff piece 21 and the second shutoff piece 22, are convenient for control the velocity of flow, improve work efficiency. Support arrangement includes base 71 and support 72, pivot 73 linking bridge 72 is passed through to support 72 one end, and the other end installs elevating gear 8, elevating gear 8 includes initiative 81, gear train, threaded rod 83 and the lifter 84 who cup joints threaded rod 83, universal ball linking bridge 72 is passed through to lifter 84 upper end, auxiliary frame 85 has cup jointed on the lifter 84, auxiliary frame 85 passes through shell connection base 71, utilizes elevating gear 8 to adjust the angle of spin tank 6, makes it realize the slope, is convenient for effectively discharge the liquid in the spin tank 6, improves work efficiency.

Preferably, the utility model discloses a baffle is installed to first shutoff piece 21 and second shutoff piece 22 junction, be equipped with the spout that holds first shutoff piece 21 and second shutoff piece 22 removal on the baffle, utilize the baffle to carry out the interval to the clearance between first shutoff piece 21 and the second shutoff piece 22, prevent that gas from flowing into the clearance between first shutoff piece 21 and the second shutoff piece 22, influence operating mass with rated load.

Additionally, the utility model discloses an install the ball on first shutoff piece 21 and the second shutoff piece 22, just ball butt spout utilizes the ball to make the friction between first shutoff piece 21 and second shutoff piece 22 and the spout, becomes rolling friction by sliding friction, and then reduces frictional force, when improving work efficiency, reduces wearing and tearing between the spare part, prolongs its life.

Further, the utility model discloses a be equipped with spacing hole on the first shutoff piece 21, just elastic component 23 is located spacing downthehole, elastic component 23 is the spring, just the spring equidistance is installed threely, utilizes the spring of three equidistance installation to effectively adjust the distance between the shutoff piece, and then makes the shutoff piece realize steady removal at the removal in-process, improves regulation stability, guarantees the effective distance in the accommodation process simultaneously, improves work efficiency.

Better, the utility model discloses a second shutoff piece 22 one end is the arc setting, just the arc diameter utilizes the second shutoff piece 22 that has the arc setting for the shutoff piece height, guarantees that gas can realize effectively flowing, and then improves work efficiency, realizes the control of gas flow rate.

The utility model discloses in the implementation: waste water flows in through an inlet of the rotary tank 6, and meanwhile, the rotary tank 6 is filled with air by utilizing an air inlet pipe 5 positioned at the inlet, the air inlet pipe 5 is connected with the bracket 72 through the lifting device 8, the air inlet pipe 5 is connected with the ozone generator, and the adopted gas is ozone. After gas is poured into the rotary tank 6, the motor 61 is started, the rack 62 meshed with the output end of the motor 61 is driven to rotate by the motor 61, the rack 62 is welded outside the rotary tank 6, guide plates 63 are installed on two sides of the rack 62, guide wheels are sleeved on the guide plates 63, so that the rotary tank 6 is driven to rotate by the rack 62, effective rotation is realized by the guide plates 63 and the guide wheels, and in the rotating process, wastewater in the rotary tank 6 is fully mixed with ozone, so that the decomposition reaction of waste gas substances in the wastewater is realized. After reacting a period of time, utilize the export 64 to discharge the quality of water after the reaction, for no impurity in guaranteeing discharged quality of water, can install filter equipment such as a filter screen in export 64 department, simultaneously in order to guarantee the sewage cleanliness factor after the purification, can pack different reaction gas toward the inner packing of rotary tank 6 simultaneously, for example chlorine etc. with this assurance waste water treatment effect, and in the course of treatment, need carry out the strict control to the air input of intake pipe 5, thereby can carry out the effective processing to the waste water in the rotary tank 6, improve treatment effeciency and treatment quality. In order to ensure the working stability of the rotary tank 6, the two ends of the rotary tank 6 are connected with the base through the bearing and the fixing frame, and the rotary stability of the rotary tank 6 is ensured.

As shown in fig. 8 to 9, when the angle of the rotary tank 6 needs to be inclined, one end of the rotary tank 6 is lifted and adjusted by the lifting device 8, and the other end of the rotary tank is rotated along the rotating shaft 73, so that the inclination angle of the rotary tank 6 is adjusted. When the lifting device 8 is used for adjusting the angle of the rotary tank 6, the power part 81 is used for driving the gear set to rotate, and the power part 81 can adopt a common motor. The gear train includes straight-tooth gear 821 and the bevel gear 822 of vertical installation, the bevel gear 822 is connected the power spare 81 output, straight-tooth gear 821 fixed connection threaded rod 83, still cup jointed the bolster on the lifter 84, the bolster includes elastic component 861 and the movable plate 862 of connecting elastic component 861, utilizes straight-tooth gear 821 and bevel gear 822 of mutually perpendicular installation, makes the direction of rotation change to make the rotation of straight-tooth gear 821 drive threaded rod 83 realize rotatoryly, threaded rod 83 is at rotatory in-process, because the inside helicitic texture that matches with threaded rod 83 that is equipped with of lifter 84, thereby lifter 84 can realize going up and down through the rotation of threaded rod 83. The lifting rod 84 pushes one end of the rotary tank 6 to lift in the lifting process, so that the rotary tank 6 can incline along the rotating shaft 73, the inclination angle is changed, and the liquid in the rotary tank 6 can flow out conveniently. The buffer member is used for providing buffer force for the lifting of the lifting rod 84, so that the stability of the lifting rod in the working process is ensured, and the service life of the lifting rod is prolonged.

When shutoff piece and regulating part 3 are in the closed condition, as shown in fig. 6, utilize oval shutoff piece to block up delivery port 12 position, prevent that gas from appearing the phenomenon of flowing, at this in-process, in order to guarantee gaseous seal, install sealed the pad between delivery port 12 and the shutoff piece, sealed the pad adoption rubber material, and sealed pad thickness is greater than the clearance between delivery port 12 and the shutoff piece, is convenient for when closing the shutoff piece, can utilize the shutoff piece to make sealed pad take place the deformation back, forms the airtight shutoff to shutoff piece and delivery port 12, guarantees to block up efficiency.

When the plugging piece and the adjusting piece 3 are in an open state, as shown in fig. 7, the rotating piece 4 is utilized to drive the adjusting piece 3 and the plugging piece to rotate, the rotating piece 4 adopts a rotating handle with a through hole in the middle, and because the inner side of the rotating piece 4 is provided with a limiting groove 41 matched with the limiting rod 31 of the adjusting piece 3, and the limiting rod 31 slides in the limiting groove 41, the adjusting piece 3 and the plugging piece can be driven to rotate when the rotating piece 4 rotates. The plugging piece is connected with the rotating piece 4 through the moving groove and the moving protrusion which are matched with each other, and the plugging piece can rotate along with the rotation of the rotating piece 4. In the gas flow process, if need adjust the gas velocity of flow, utilize the regulating part to adjust the distance between first shutoff piece 21 and the second shutoff piece 22, in order to realize automatic regulation, the fixedly connected with cylinder in regulating part 3 upper end, just cylinder connection control device utilizes the removal of control cylinder, makes it drive regulating part 3 and realize going up and down, at the lift in-process, because the hypotenuse on the shutoff piece forms isosceles trapezoid, and isosceles trapezoid is upper and lower narrow structure, consequently, can promote first shutoff piece 21 and second shutoff piece 22 and realize moving at regulating part 3 decline in-process, and then adjusts the clearance between shutoff piece and the casing 1 through the clearance between the shutoff piece to change the velocity of flow of gas. In order to reduce labor cost in the changing process, a flow velocity detector can be installed at the water outlet 12, the flow velocity detector is used for detecting the flow velocity, and then automatic control is performed according to the ratio of the flow velocity to the position of the air cylinder, the flow velocity detector adopts the prior art, and the working principle and the composition structure of the flow velocity detector are not described in detail herein. The wireless transmission is utilized to control the moving speed of the cylinder, and the method belongs to the prior art, such as a cylinder fixing clamp in a numerical control machine tool, and the like, and only the two are combined and used, and the working principle of the method is not described in detail herein.

The limiting rod 31 is provided with a pulley which is abutted against the limiting groove 41, and the friction between the limiting rod 31 and the limiting groove 41 is changed from sliding friction to rolling friction by the pulley, so that the friction is reduced, the service life of the limiting rod is prolonged, and the manufacturing and maintenance cost is reduced. 3 lower extreme both sides of regulating part have spacing arch 32, just spacing arch 32 is the arc setting, utilizes the spacing arch 32 of arc, can reduce the friction between spacing arch 32 and the shutoff piece, and the removal of regulating part 3 of can being convenient for simultaneously improves work efficiency.

To sum up, the utility model provides a biochemical treatment device of aquaculture waste water, including rotary tank, intake pipe and strutting arrangement, the intake pipe passes rotary tank import, and one end is located rotary tank, the intake pipe other end passes through strutting arrangement and connects rotary tank, be equipped with the valve in the intake pipe, valve housing, shutoff piece and the regulating part that is located the shutoff piece, be equipped with water inlet and delivery port on the casing, just the water inlet diameter is greater than the delivery port diameter, utilizes water inlet and delivery port to lead rivers, makes its effect flow to carry out effective control through shutoff piece and regulating part to the velocity of flow, improve work efficiency. The blocking piece comprises a first blocking piece and a second blocking piece, the first blocking piece is connected with the second blocking piece through an elastic piece, the first blocking piece and the second blocking piece are both provided with bevel edges, the bevel edges are symmetrically arranged, the elastic pieces are used for connecting the blocking pieces, so that the blocking pieces are effectively reset, and meanwhile, the blocking pieces with the bevel edges are used for forming an accommodating space, so that the adjusting piece can effectively move; cup joint a rotating member on the regulating part, be equipped with the spacing groove on the rotating member, regulating part lower extreme diameter is greater than the upper end diameter, just be equipped with the gag lever post on the regulating part, the gag lever post slides in the spacing inslot, regulating part lower extreme diameter equals or is greater than the accommodation space diameter that the hypotenuse formed, utilizes the rotating member to drive regulating part and shutoff piece realization rotatory, is convenient for adjust the velocity of flow, utilizes the regulating part of equidistance from top to bottom simultaneously to adjust the distance between first shutoff piece and the second shutoff piece, is convenient for control the velocity of flow, improves work efficiency. The utility model discloses a rotary tank, including support, elevating gear, universal ball linking bridge, elevating gear, drive part, gear train, threaded rod, universal ball linking bridge, elevating gear, universal ball linking bridge, elevating gear. The utility model has the advantages that: control the distance between the shutoff piece through the regulating part to can carry out accurate control and regulation to the gas flow rate, guarantee stability and accuracy in the working process, improve work efficiency, can adjust the angle of rotary tank simultaneously, make it realize the slope, the liquid outflow in the rotary tank of being convenient for.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. The biochemical treatment device for the aquaculture wastewater is characterized by comprising a rotary tank, an air inlet pipe and a supporting device, wherein the air inlet pipe penetrates through an inlet of the rotary tank, one end of the air inlet pipe is positioned in the rotary tank, the other end of the air inlet pipe is connected with the rotary tank through the supporting device, a valve is arranged on the air inlet pipe, the valve comprises a shell, a plugging piece and an adjusting piece positioned in the plugging piece, a water inlet and a water outlet are formed in the shell, the diameter of the water inlet is larger than that of the water outlet, the plugging piece comprises a first plugging piece and a second plugging piece, the first plugging piece is connected with the second plugging piece through an elastic piece, inclined edges are arranged on the first plugging piece and the second plugging piece, and the inclined edges are symmetrically arranged;

the adjusting piece is sleeved with a rotating piece, a limiting groove is formed in the rotating piece, the diameter of the lower end of the adjusting piece is larger than that of the upper end of the adjusting piece, a limiting rod is arranged on the adjusting piece and slides in the limiting groove, and the diameter of the lower end of the adjusting piece is equal to or larger than that of an accommodating space formed by bevel edges;

the supporting device comprises a base and a support, one end of the support is connected with the support through a rotating shaft, the other end of the support is provided with a lifting device, the lifting device comprises a driving part, a gear set, a threaded rod and a lifting rod sleeved with the threaded rod, the upper end of the lifting rod is connected with the support through a universal ball, an auxiliary frame is sleeved on the lifting rod, and the auxiliary frame is connected with the base through a shell.

2. The biochemical treatment device for aquaculture wastewater according to claim 1, wherein a baffle is installed at the joint of the first blocking piece and the second blocking piece, and a sliding groove for accommodating the movement of the first blocking piece and the second blocking piece is formed in the baffle.

3. The biochemical treatment device for aquaculture wastewater according to claim 2, wherein the first and second plugging members are provided with balls, and the balls abut against the sliding groove.

4. The biochemical treatment device for aquaculture wastewater as recited in claim 1, wherein the first blocking member is provided with a limiting hole, the elastic member is located in the limiting hole, the elastic member is a spring, and three springs are equidistantly installed.

5. The biochemical treatment device for aquaculture wastewater according to claim 1, wherein one end of the second plugging member is arc-shaped, and the diameter of the arc is the height of the plugging member.

6. The biochemical treatment device for aquaculture wastewater according to claim 1, wherein the limiting rod is provided with a pulley, and the pulley abuts against the limiting groove.

7. The biochemical treatment device for aquaculture wastewater as recited in claim 1, wherein the adjusting member has limiting protrusions at two sides of the lower end thereof, and the limiting protrusions are arranged in an arc shape.

8. The biochemical treatment device for aquaculture wastewater as recited in claim 1, wherein an air cylinder is fixedly connected to the upper end of the adjusting member, and the air cylinder is connected to the control device.

9. The biochemical treatment device for aquaculture wastewater according to claim 1, wherein the air inlet pipe is connected with the bracket through a fixing frame, and the air inlet pipe is connected with the ozone generator.

10. The biochemical treatment device for the aquaculture wastewater according to claim 1, wherein the gear set comprises a straight gear and a bevel gear which are vertically installed, the bevel gear is connected with the output end of the power part, the straight gear is fixedly connected with the threaded rod, the lifting rod is further sleeved with a buffer part, and the buffer part comprises an elastic part and a movable plate connected with the elastic part.