CN112237167A

CN112237167A - Shrimp culture pond for aquaculture and shrimp shell collecting and discharging method

Info

Publication number: CN112237167A
Application number: CN202011247377.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhao Yahua
Current assignee: Guangxi Yingxia Technology Co., Ltd.
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-01-19
Anticipated expiration: 2040-11-10
Also published as: CN112237167B

Abstract

The invention discloses a shrimp breeding pond for aquaculture and a method for collecting and discharging shrimp shells, comprising a shrimp breeding pond and a water partition wall. There are gaps between the inner side walls, and movable water blocking components are installed on the two gaps. The bottom surface of the shrimp shell discharge area is provided with an arc-shaped concave waste settlement area. The water outlet and the sewage outlet are installed on the tank body above the shrimp shell discharge area, and a plurality of hoisting devices are installed on the upper cover plate. This device takes advantage of the characteristics of live shrimp chasing high oxygen content waters, and creatively establishes a waste settlement area on both sides of the shrimp pond with relatively deep water depth and low oxygen content, so that the live shrimp will actively leave the waste settlement area, so as to solve the problem perfectly. It solves the problem of distinguishing and collecting shrimp and shrimp shells in different growth periods.

Description

Shrimp culture pond for aquaculture and shrimp shell collecting and discharging method

Technical Field

The invention relates to the technical field of aquaculture, in particular to a shrimp culture pond for aquaculture and a shrimp shell collecting and discharging method.

Background

In the process of shrimp culture, when a large amount of pollutants such as residual baits, feces, shells of the sloughed shrimps and the like are accumulated and cannot be transferred in time, harmful environmental factors such as ammonia nitrogen, nitrite and the like in a water body are increased, conditioned pathogenic bacteria such as vibrios and the like are bred in a large amount, harmful algae are bred, and the outbreak of scale diseases is caused.

At present, the common runway-type shrimp culture pond in the shrimp culture pond adds a water-stop wall in the middle of the pond, and a gap is reserved between the water-stop wall and the pond wall, so that when water is fed and oxygenated, water in the shrimp pond can rotate along the water-stop wall, still water becomes flowing water, but the unshelling of residual baits, excrement and shrimps can be driven by water flow to be gathered together at the bottom of the pond, so that the water pollution is easily caused due to inconvenient pollution discharge.

At present, a track type shrimp breeding method uses a ridge type sewage system, but the method can only remove the sewage in water such as residual bait, excrement and the like, and can not help shells which are sloughed off in the growth process of the shrimps, the shrimps are bred in high density, and if a large amount of shrimp shells generated cannot be discharged in time, the water quality in a shrimp pond is influenced, so that the shrimps are poisoned and killed. Therefore, a shrimp culture pond for aquaculture and a shrimp shell collecting and discharging method are provided for solving the problems.

Disclosure of Invention

The invention aims to provide a shrimp culture pond for aquaculture and a shrimp shell collecting and discharging method, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a shrimp culture pond for aquaculture comprises a shrimp culture pond with a rectangular pond body and water separation walls vertically distributed in the pond body, wherein water inlets are arranged at two ends of the pond body,

gaps are formed between the end parts of the water-stop walls and the two inner side walls of the pool body, movable water-stop assemblies are movably mounted on the two gaps, each movable water-stop assembly comprises a water-stop plate capable of sliding along the length direction of the water-stop wall, and the water-stop plates can movably cover the gaps;

a shrimp shell discharge area is arranged at two diagonal positions on the pool body, an arc-shaped concave waste settling area is arranged on the bottom surface of the shrimp shell discharge area, a sewage discharge water inlet and a sewage discharge outlet are respectively formed in two ends of the waste settling area, and a filter plate capable of being opened movably is arranged on the sewage discharge outlet;

be located install the upper cover plate on the cell body of shrimp shell exhaust area top, install a plurality of hoisting accessory on the upper cover plate, hoisting accessory includes the wire rope that receive and releases through the capstan winch, fixed connection baffle on the wire rope, the baffle sets up with the upper cover plate is perpendicular, and distributes in the outside of shrimp shell exhaust area, when the baffle puts down, keeps the parallel and level between the lateral wall of baffle and cell body.

Preferably, four corners of the tank body are designed to be rounded, and the water inlets are distributed on the inner walls of the tank body at two opposite corners.

Preferably, the activity water-stop assembly still includes a C shape slide rail of fixed mounting at the water-stop wall top, C shape slide rail is along the length direction of water-stop wall and outwards extend, and the slip joint has a plurality of pulleys in the C shape slide rail, pulley fixed mounting be in the top of water-stop sheet, the one end of water-stop sheet is the push rod of an upwards extension of fixed connection still.

Preferably, the bottom surface of the shrimp shell discharge area is provided with a slope, the slope inclines towards the direction of the waste settling area, and the depth in the waste settling area is greater than that of the pool body.

Preferably, a filter mounting bracket of sewage draining port department fixed mounting, the activity is pegged graft on the filter mounting bracket the filter, even filtration pore has been seted up with the part of sewage draining port coincidence on the filter, an action bars of top rigid coupling of filter, the action bars passes the operation mouth of seting up on the upper cover plate and upwards extends, the shape and the size of operation mouth cooperate with the cross-sectional shape and the size of filter.

Preferably, the bottom of the upper cover plate is provided with a plurality of reinforcing ribs which are arranged in a staggered manner, and the top of the side wall of the tank body is provided with rib grooves which are matched with the reinforcing ribs.

Preferably, the baffle is composed of a plurality of independent small baffles, the two adjacent small baffles are connected through a sliding chute and a sliding block structure, each small baffle is connected with a lifting device, the lifting device further comprises a support frame fixedly installed on the upper cover plate, the winch is fixedly installed on the support frame, and the steel wire rope is connected with the small baffles after bypassing the winch and extending downwards.

Preferably, the small baffles are respectively a flat baffle, a first arc-shaped plate, a second arc-shaped plate and a third arc-shaped plate which are sequentially connected, a first sliding block is vertically arranged at the outer end of the flat baffle, a second sliding block is vertically arranged at the outer end of the third arc-shaped plate, and the first sliding block and the second sliding block are respectively clamped in a baffle slide way arranged on the side wall of the tank body in a sliding manner;

the flat baffle, the first arc-shaped plate, the second arc-shaped plate and the third arc-shaped plate form an arc-shaped structure, and the arc-shaped structure is respectively in transitional connection with the side walls of the tank body on two sides of the shrimp shell discharge area.

The utility model provides a method for collecting and discharging shrimp shells in a shrimp pond for aquaculture, which adopts the shrimp shell collecting and discharging device and comprises the following steps:

s1: when the shrimp culture pond normally works, the baffle is put down to the bottom of the pond, the movable water-stop plate assembly is opened to the maximum, the gap is in an open state, the drain outlets on two sides are in a closed state, the oxygen increasing system in the shrimp culture pond continuously works, and the shrimp culture pond is in a normal runway type shrimp culture state at the moment;

s2: when the shrimp shell waste in the pond needs to be cleaned, firstly, the filter plates on the upper cover plates on the two sides are placed in the filter plate mounting frame and are overlapped with the sewage discharge port;

s3: lifting the baffles on the two sides upwards through a lifting device, opening the shrimp shell discharge area, and then closing the movable water-stop plate assembly to enable the gap to be in a closed state;

s4: opening water inlets and drain outlets on two sides of the pond body to enable water in the pond to form a linear flowing state on two sides of the water-stop wall respectively, adjusting the water quantity of the water inlets and the drain outlets to enable the water flow speed to be just capable of driving shrimp shells and dead shrimps in the pond to flow, and keeping for a period of time;

s5: when all the shrimp shells and dead shrimps in the pond enter the waste settling area, closing the water inlet and the sewage outlet, and opening the movable water-stop plate assemblies on the two sides, the live shrimps leave the waste settling area and return to the inside of the pond body because the oxygen content in the pond is obviously higher than that in the waste settling area;

s6: after confirming that all live shrimps return to the pond, putting down the baffle plate to enable the pond to recover to a normal breeding state, then lifting the filter plate, opening the drain outlets on the two sides and the sewage inlet, discharging the shrimp shells and dead shrimps out of the shrimp pond by utilizing water flow, adjusting the water level in the shrimp pond to a proper height, closing the drain outlets and the sewage inlet 105a, and completing the whole process of collection and discharge.

Compared with the prior art, the invention has the beneficial effects that:

the invention creatively establishes a waste settling area with relatively deeper water depth and lower oxygen content at two sides of the shrimp pond under the conditions of low investment and simple structure by utilizing the physiological characteristics that the live shrimps chase into a high oxygen-containing water area, climb to the bottom and have certain requirements on water depth, so that the live shrimps can leave actively, thereby perfectly solving the difficult problems of continuously enlarged areas and collection of the shrimps and shrimp shells of the shrimps in different growth periods.

Utilize the circulating water that high density shrimp culture used, carry out the collection and the discharge work of shrimp shell and dead shrimp for the discharge of shrimp shell becomes simple and convenient, can compromise the cleaning work in a plurality of shrimp culture ponds simultaneously, the cost of labor of shrimp culture can be fine reduction.

The design that the slideway on the upper cover plate and the pool wall is suspended in the air is utilized, so that the pool bottom is kept wide and flat, the generation of dead angles caused by waste retention can be avoided, the pool is cleaner, and the improvement of the water quality in the pool is facilitated.

The invention can well reduce the cost of high-density shrimp culture and improve the survival rate of the shrimps, thereby improving the economic benefit of farmers.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of an explosive structure according to the present invention;

FIG. 3 is a schematic view of the structure of the upper cover plate and the baffle plate of the present invention;

FIG. 4 is a schematic view of the structure of a tank body in the present invention;

FIG. 5 is an enlarged view taken at A of FIG. 4 in accordance with the present invention;

FIG. 6 is a schematic structural view of a movable riser assembly according to the present invention;

FIG. 7 is a schematic view of the structure of the baffle of the present invention;

FIG. 8 is a schematic diagram of a filter plate structure according to the present invention.

In the figure: 1, a shrimp culture pond, a 101 pond body, a 101a water inlet, a 102 water-stop wall, a 103 gap, a 104 shrimp shell discharge area, a 105 waste settling area, a 105a sewage discharge water inlet, a 105b sewage discharge outlet, a 106 slope, a 107 rib groove, a 108 baffle slideway and a 109 filter plate mounting rack;

2, a movable water stop plate assembly, a 21C-shaped sliding rail, a 22 water stop plate, 2201 pulleys and 2202 push rods;

3, an upper cover plate, 301 reinforcing ribs, 302 operation ports, 303 filter plates, 303a filter holes and 303b operation rods;

a 4 baffle plate, a 41 flat baffle plate, a 4101 first slide block, a 42 first arc-shaped plate, a 43 second arc-shaped plate, a 44 third arc-shaped plate and a 4401 second slide block;

5 hoisting device, 51 support frame, 52 winch and 53 steel wire rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a shrimp culture pond for aquaculture, is including the shrimp culture pond 1 that has rectangle structure cell body 101 and the vertical division wall 102 of distributing in cell body 101, and the both ends of cell body 101 are provided with water inlet 101a, and the fillet design is adopted in the four corners of cell body 101, and water inlet 101a distributes on the cell body 101 inner wall of wherein two diagonal angles.

Referring to fig. 1-4 and fig. 6, a gap 103 is formed between an end of the diaphragm wall 102 and two inner sidewalls of the tank 101, a movable diaphragm assembly 2 is movably mounted on each of the two gaps 103, the movable diaphragm assembly 2 includes a diaphragm 22 capable of sliding along a length direction of the diaphragm wall 102, and the diaphragm 22 is movably covered on the gap 103.

Further, activity water-stop assembly 2 still includes a C shape slide rail 21 of fixed mounting at water-stop wall 102 top, and C shape slide rail 21 outwards extends along water-stop wall 102's length direction, and the slip joint has a plurality of pulleys 2201 in C shape slide rail 21, and pulley 2201 fixed mounting is at the top of water-stop sheet 22, and the one end of water-stop sheet 22 still fixed connection is the push rod 2202 of an upwards extension.

As shown in fig. 5, two diagonal positions on the tank body 101 are provided with a shrimp shell discharging area 104, the bottom surface of the shrimp shell discharging area 104 is provided with an arc-shaped concave waste settling area 105, two ends of the waste settling area 105 are respectively provided with a sewage inlet 105a and a sewage outlet 105b, the bottom surface of the shrimp shell discharging area 104 is provided with a slope 106, the slope 106 inclines towards the waste settling area 105, so that the depth in the waste settling area 105 is greater than that of the tank body 101, and an oxygen increasing system is not arranged in the shrimp shell discharging area 104, thereby ensuring that the oxygen content in the shrimp shell discharging area 104 is obviously lower than that in the tank body 101.

As shown in fig. 1-3 and fig. 8, a filter plate 303 capable of being opened movably is arranged on the sewage draining exit 105b, a filter plate mounting frame 109 is fixedly arranged at the sewage draining exit 105b, a filter plate 303 is movably inserted on the filter plate mounting frame 109, an even filter hole 303a is formed in the part, coinciding with the sewage draining exit 105b, of the filter plate 303, an operating rod 303b is fixedly connected to the top of the filter plate 303, the operating rod 303b penetrates through an operating opening 302 formed in the upper cover plate 3 and extends upwards, and the shape and size of the operating opening 302 are matched with the cross-sectional shape and size of the filter plate 303.

An upper cover plate 3 is arranged on the pool body 101 above the shrimp shell discharge area 104, a plurality of reinforcing ribs 301 which are arranged in a staggered mode are arranged at the bottom of the upper cover plate 3, rib grooves 107 which are matched with the reinforcing ribs 301 are formed in the top of the side wall of the pool body 101, the upper cover plate 3 is of a frame type structure which is formed by welding reinforcing ribs which are made of metal square tubes, and plates are arranged on the upper cover plate to facilitate walking of people and installation of other equipment.

The upper cover plate 3 is provided with a plurality of hoisting devices 5, each hoisting device 5 comprises a steel wire rope 53 which is wound and unwound through a winch 52, the steel wire rope 53 is fixedly connected with a baffle 4, the baffle 4 and the upper cover plate 3 are vertically arranged and distributed on the outer side of the shrimp shell discharge area 104, when the baffle 4 is put down, the baffle 4 and the side wall of the pool body 101 are kept flush, and the winch 52 adopts a common self-locking winch in the field, so that the length of the steel wire rope 53 can be conveniently adjusted.

The hoisting device 5 further comprises a support frame 51 fixedly mounted on the upper cover plate 3, a winch 52 is fixedly mounted on the support frame 51, and a steel wire rope 53 bypasses the winch 52 and extends downwards to be connected with the small baffle.

As shown in fig. 7, the baffle 4 is composed of a plurality of independent small baffles, two adjacent small baffles are connected through a sliding chute and a sliding block structure, each small baffle is connected with a lifting device 5,

further, the small baffles are respectively a flat baffle 41, a first arc-shaped plate 42, a second arc-shaped plate 43 and a third arc-shaped plate 44 which are connected in sequence, a first slider 4101 is vertically arranged at the outer end of the flat baffle 41, a second slider 4401 is vertically arranged at the outer end of the third arc-shaped plate 44, and the first slider 4101 and the second slider 4401 are respectively clamped in a baffle slide 108 arranged on the side wall of the tank body 101 in a sliding manner;

the flat baffle 41, the first arc-shaped plate 42, the second arc-shaped plate 43 and the third arc-shaped plate 44 form an arc-shaped structure, and the arc-shaped structure is respectively in transitional connection with the side walls of the tank body 101 at two sides of the shrimp shell discharge area 104.

s1: when the shrimp pond 1 normally works, the baffle 4 is put down to the bottom of the pond, the movable water-stop sheet component 2 is opened to the maximum, the gap 103 is in an open state, the drain outlets 105b on the two sides are in a closed state, the oxygen increasing system in the shrimp pond 1 continuously works, and at the moment, the shrimp pond 1 is in a normal runway type shrimp culturing state;

s2: when the shrimp shell waste in the pond needs to be cleaned, firstly, the filter plates 303 on the upper cover plates 3 on the two sides are placed in the filter plate mounting frame 109 and are overlapped with the sewage discharge outlet 105 b;

s3: the baffles 4 on the two sides are lifted upwards by the lifting device 5, the shrimp shell discharge area 104 is opened, and then the movable water-stop sheet assembly 2 is closed, so that the gap 103 is in a closed state;

s4: opening the water inlets 101a and the sewage outlets 105b on the two sides of the pond body 101 to enable water in the pond to form a linear flowing state on the two sides of the water-stop wall 102 respectively, adjusting the water amount of the water inlets 101a and the sewage outlets 105b to enable the water flow speed to be just capable of driving shrimp shells and dead shrimps in the pond to flow, and keeping for a period of time;

s5: when all the shrimp shells and dead shrimps in the pond enter the waste settling area 105, the water inlet 101a and the sewage outlet 105b are closed, the movable water-stop plate assemblies 2 on the two sides are opened, and the live shrimps leave the waste settling area 105 and return to the inside of the pond body 101 because the oxygen content in the pond is obviously higher than that in the waste settling area 105;

s6: after confirming that all live shrimps return to the pond, the baffle 4 is put down to restore the normal breeding state in the pond, then the filter plate 303 is lifted, the drain outlets 105b and the sewage inlet 105a on the two sides are opened, after the shrimp shells and the dead shrimps are discharged out of the shrimp pond by water flow, the water level in the shrimp pond is adjusted to a proper height, the drain outlets 105b and the sewage inlet 105a are closed, and the whole process of collection and discharge is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A shrimp pond for aquaculture, comprising a shrimp pond (1) with a rectangular structure pond body (101) and a water barrier (102) vertically distributed in the pond body (101), the pond body Both ends of (101) are provided with water inlets (101a), characterized in that:

There is a gap (103) between the end of the water blocking wall (102) and the two inner side walls of the pool body (101), and a movable water blocking component (2) is movably installed on the two gaps (103). , the movable water blocking assembly (2) comprises a water blocking board (22) that can slide along the length direction of the water blocking wall (102), and the water blocking board (22) can movably cover the gap (103) ;

A shrimp shell discharge area (104) is provided at two diagonal positions on the tank body (101), and the bottom surface of the shrimp shell discharge area (104) is provided with an arc-shaped concave waste settling area (104). 105), the two ends of the waste settlement area (105) are respectively provided with a sewage water inlet (105a) and a sewage outlet (105b), and a movably open filter plate (303) is arranged on the sewage outlet (105b) ;

An upper cover plate (3) is installed on the tank body (101) above the shrimp shell discharge area (104), and a plurality of hoisting devices (5) are installed on the upper cover plate (3), and the hoisting devices (5) comprising a wire rope (53) retracted by a winch (52), a baffle plate (4) is fixedly connected to the wire rope (53), the baffle plate (4) is perpendicular to the upper cover plate (3), and Distributed on the outer side of the shrimp shell discharge area (104), when the baffle plate (4) is lowered, the baffle plate (4) and the side wall of the tank body (101) remain flush.

2. The shrimp pond for aquaculture according to claim 1, characterized in that: the four corners of the pond body (101) are designed with rounded corners, and the water inlet (101a) is distributed in two diagonal corners of the pond body (101). on the inner wall of the pool body (101).

3. a kind of shrimp pond for aquaculture according to claim 1, is characterized in that: described movable water barrier assembly (2) also comprises a C-shaped slide rail ( 21), the C-shaped slide rail (21) extends outward along the length direction of the water barrier (102), and a plurality of pulleys (2201) are slidably clamped in the C-shaped slide rail (21). (2201) is fixedly installed on the top of the water baffle plate (22), and one end of the water baffle plate (22) is also fixedly connected with a push rod (2202) extending upward.

4. The shrimp pond for aquaculture according to claim 1, wherein a slope (106) is arranged on the bottom surface of the shrimp shell discharge area (104), and the slope (106) is directed toward the waste settlement area. The direction of (105) is inclined, and the depth in the waste settling zone (105) is greater than the depth of the tank body (101).

5. The shrimp pond for aquaculture according to claim 1, wherein a filter plate mounting frame (109) is fixedly installed at the sewage outlet (105b), and the filter plate mounting frame (109) The filter plate (303) is movably inserted on the upper part, the part of the filter plate (303) that overlaps with the sewage outlet (105b) is provided with uniform filter holes (303a), and the top of the filter plate (303) is fixedly connected for an operation A rod (303b), the operating rod (303b) passes through the operating port (302) opened on the upper cover plate (3) and extends upward, and the shape and size of the operating port (302) are the same as those of the filter plate (303). Cross-sectional shape and size match.

6. A shrimp pond for aquaculture according to claim 1, characterized in that: the bottom of the upper cover plate (3) is provided with a plurality of staggered ribs (301), and the pond body (101) ) The top of the side wall is provided with a rib groove (107) matched with the reinforcing rib (301).

7. The shrimp pond for aquaculture according to claim 1, wherein the baffle plate (4) is composed of a plurality of independent small baffle plates and is located between two adjacent small baffle plates. Through the connection between the chute and the slider structure, each small baffle is connected with a hoisting device (5), and the hoisting device (5) further comprises a support frame (51) fixedly installed on the upper cover plate (3), The winch (52) is fixedly installed on the support frame (51), and the steel wire rope (53) extends downward around the winch (52) and is connected to the small baffle plate.

8. A shrimp pond for aquaculture according to claim 7, wherein the small baffles are respectively a flat baffle (41), a first arc-shaped plate (42), a second An arc-shaped plate (43) and a third arc-shaped plate (44), the outer end of the flat baffle plate (41) is vertically arranged with a first sliding block (4101), and the outer end of the third arc-shaped plate (44) is vertically disposed A second sliding block (4401) is set in the direction of the direction, and the first sliding block (4101) and the second sliding block (4401) are respectively slidably clamped in the baffle slideway (108) provided on the side wall of the pool body (101). ;

The flat baffle plate (41), the first arc-shaped plate (42), the second arc-shaped plate (43) and the third arc-shaped plate (44) constitute an arc-shaped structure, and the arc-shaped structure is respectively connected to the shrimp shell. The side walls of the pool body (101) on both sides of the discharge area (104) are connected by transition.

9. A method for collecting and discharging shrimp shells in a shrimp breeding pond for aquaculture, characterized in that, adopting the shrimp shell collecting and discharging device as described in any one of claims 1-8, specifically comprising the following steps:

S1: When the shrimp pond (1) is working normally, the baffle plate (4) is lowered to the bottom of the pond, the movable baffle plate assembly (2) is opened to the maximum, the gap (103) is in an open state, and the sewage outlets (105b) on both sides are opened. In the closed state, the oxygenation system in the shrimp farming pond (1) works continuously, and the shrimp farming pond (1) is in a normal runway shrimp farming state at this time;

S2: When it is necessary to clean the shrimp shell waste in the tank, first put the filter plates (303) on the upper cover plates (3) on both sides into the filter plate mounting frame (109), and connect them with the sewage outlet (105b) coincide;

S3: Lift up the baffles (4) on both sides by the hoisting device (5), open the shrimp shell discharge area (104), and then close the movable baffle assembly (2), so that the gap (103) is in a closed state;

S4: Open the water inlet (101a) and the sewage outlet (105b) on both sides of the pool body (101), so that the water in the pool forms a linear flow state on both sides of the water partition wall (102), and adjust the water inlet (101a) ) and the amount of water in the sewage outlet (105b), so that the speed of the water flow is just enough to drive the shrimp shells and dead shrimp in the pool to flow, and keep it for a period of time;

S5: When the shrimp shells and dead shrimp in the tank all enter the waste settlement area (105), close the water inlet (101a) and the sewage outlet (105b), open the movable baffle plates (2) on both sides, and open the oxygen in the tank system, because the oxygen content in the pond is significantly higher than that of the waste settling zone (105), the live shrimp will leave the waste settling zone (105) and return to the interior of the pond body (101);

S6: After confirming that all the live shrimp have returned to the pond, lower the baffle plate (4) to restore the pond to the normal breeding state, then lift the filter plate (303), and open the sewage outlets (105b) and sewage inlets (105a) on both sides. , after the shrimp shells and dead shrimp are discharged from the shrimp pond by using the water flow, the water level in the shrimp pond is adjusted to a suitable height, and the sewage outlet (105b) and the sewage inlet (105a) are closed to complete the whole process of collection and discharge.