Electric control pollution discharge system and method for lossless separation of dead shrimp shells and live shrimps

Abstract

The invention discloses an electric control blowdown system and method for lossless separation of dead shrimp shells and live shrimps. The electric control blowdown system comprises a culture pond, a bottom discharge device and a side discharge box. The bottom discharge device is provided with an inserting-pulling pipe, a plurality of sets of filtering water inlet holes are evenly formed in a pipe body of the inserting-pulling pipe, and an electric push-pull rod is arranged to achieve pollution discharge of the inserting-pulling pipe in an inserting-pulling pipe pollution discharge hole. The sewage discharging process is divided into a collecting stage and a washing stage, firstly, in the collecting stage, bottom drainage is conducted by controlling the inserting and pulling pipe, and pond bottom shrimp shells, excrement and other sundries are guided to enter a drainage pipeline and a side drainage box; and then the bottom drainage is closed in the washing stage, water flow is injected through a filtering water inlet hole of the pluggable pipe, and residual dirt in the drainage pipeline is flushed into the side drainage box. A filtering basket is adopted in the side discharging box for collection, and harmless separation is achieved by manually sorting live shrimps. The device is simple in structure and small in occupied breeding space, dead shrimps and shrimp shells can be effectively collected while full-automatic electric control of stable drainage and pollution discharge is achieved, live shrimps are prevented from escaping, and the breeding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a breeding electric control sewage system, in particular to an electric control sewage system and method for non-destructive separation of dead shrimps and live shrimps, and belongs to the technical field of shrimp recirculating aquaculture sewage treatment. BACKGROUND

[0002] In the process of factory recirculating aquaculture, if the dead shrimps and shrimp shells generated in the breeding tank are not cleaned and discharged from the breeding tank in time, the recirculating water system will be blocked, the dead shrimps and shrimp shells will decompose and pollute the water body if they stay in the breeding tank for a long time, which will make the water quality worse, and then affect the growth of shrimps, cause the death of live shrimps, and affect the breeding efficiency. The traditional shrimp shell cleaning method such as "shrimp toilet + sewage pipe" method will cause live shrimps and shrimp shells to be discharged into the sewage treatment system at the same time, which is easy to cause irreversible damage to live shrimps, thereby reducing the breeding yield, and this method usually needs manual pipe plugging, which is very inconvenient and increases the labor cost required for breeding.

[0003] Therefore, it is of great significance to develop a device that is electrically controlled, stably discharges water and sewage, collects dead shrimps and shrimp shells, and prevents live shrimps from escaping, to improve the breeding efficiency, reduce the labor cost, and promote the development of the recirculating aquaculture industry towards automation and modernization. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and designs an electric control sewage system for non-destructive separation of dead shrimps and live shrimps.

[0005] To achieve the above purpose, the following technical solutions are adopted: An electric control sewage system for non-destructive separation of dead shrimps and live shrimps, characterized in that it comprises a breeding tank, a bottom discharge device arranged in the middle of the breeding tank, and a side discharge box arranged on the side wall of the breeding tank. The breeding tank comprises a breeding tank body, a water inlet pipe, a shrimp toilet, a sewage pipe, and a circulating system outlet pipe; the water inlet pipe is connected to fresh water or recycled water of the breeding system; the shrimp toilet is arranged at the bottom of the breeding tank, and its outlet end is connected to the circulating system outlet pipe; the sewage pipe is arranged in the middle of the shrimp toilet. The bottom discharge device comprises an electric push-pull rod, a push-pull rod fixing disc, a fixing support, a connecting rod, a plug pipe filtering water inlet hole, a plug pipe, a plug pipe discharge hole, a bottom discharge device filtering base and a fixed stainless steel pipe. The bottom discharge device filtering base is fixed on the shrimp toilet of the breeding pond and is provided with a drainage hole in the middle. The push-pull rod fixing disc is connected to the bottom discharge device filtering base through three fixing supports. The electric push-pull rod is installed in the middle of the push-pull rod fixing disc and is connected to the connecting rod to control the up-down movement of the plug pipe. The plug pipe is provided with a plug pipe discharge hole at the bottom and is inserted into the drainage hole in the middle of the bottom discharge device filtering base. The connecting rod is fixed in the plug pipe mounting hole. The drainage hole and the discharge pipe are connected through the fixed stainless steel pipe to form a discharge system. The side discharge box comprises a side discharge box water inlet, a side discharge box water outlet, a filtering basket and a control valve. The side discharge box is welded on the side of the breeding pond. The side discharge box water inlet is connected to the discharge pipe and is located in the filtering basket. The side discharge box water outlet is connected to the circulating system water outlet pipe. The pipelines of the side discharge box water inlet and the side discharge box water outlet are provided with electric control pneumatic valves for controlling the opening and closing of the water pipes. The filtering basket has a size smaller than the side discharge box.

[0006] Further, the side wall of the breeding pond is further provided with an electric control terminal. The electric control terminal comprises an electric control device and a connecting cable. The electric control device is fixed on the side of the breeding pond. The electric control device is connected to the electric control pneumatic valve and the electric push-pull rod through the connecting cable and controls the electric control pneumatic valve and the electric push-pull rod to form a fully automatic electric control discharge system.

[0007] Further, the diameter of the plug pipe is determined according to the size of the discharge pipe, and the length is determined according to the water level in the breeding pond. A plurality of plug pipe filtering water inlet holes with a diameter of 3-10 mm are provided in the upper part of the plug pipe. The number of the holes is determined according to the water capacity calculated based on the size of the discharge pipe. A layer of filter gauze is bound to the area where the filtering water inlet holes are located. Two or three plug pipe discharge holes are cut at the bottom. The size of the discharge holes is determined according to the pushable distance of the electric push-pull rod. It is necessary to ensure that the plug pipe discharge holes are completely buried in the bottom discharge pipe when the electric push-pull rod is pushed to the maximum distance, and the plug pipe still has 1-2 cm in the bottom discharge pipe when it is pulled to the maximum distance.

[0008] Further, the bottom discharge device filtering base is covered with long strip-shaped filtering drainage holes with a length of 4-6 cm and a width of 3 mm. The size of the middle drainage hole matches the size of the discharge pipe.

[0009] Further, the bottom of the breeding pond body has a certain slope and is in a funnel shape to ensure that solid waste such as dead shrimps and shrimp shells is gathered on the bottom discharge device filtering base.

[0010] Further, the discharge pipe is directly connected to the side discharge box water inlet and extends out by 5 cm. The circulating system water outlet pipe is connected to the side discharge box water outlet through a tee structure.

[0011] Further, the filter basket body is made of a filter plate, the base is four small supports with a height of 2-3 cm to ensure that the water flow can be smoothly discharged from the side discharge box outlet, a hole matching the size of the sewage pipe is opened at the bottom of the filter basket for the sewage pipe to be inserted, and a circular baffle with a height of 3-5 cm is arranged around the opening to prevent solid waste such as dead shrimps and shrimp shells from falling from the opening when the filter basket is lifted.

[0012] Further, the electric push-pull rod and the electric control pneumatic valve can not only be controlled by the electric control device, but also be connected with mobile phones, computers and other devices through network signals, so that the automatic discharge and timed discharge of the starting device can be controlled on the mobile terminal.

[0013] The application also discloses a sewage discharge method of the electric control sewage discharge system for separating dead shrimps and shrimp shells from live shrimps, and the method is characterized in that the electric push-pull rod and the electric control pneumatic valve are started at the same time during sewage discharge, at this time, the electric push-pull rod lifts the plug-in pipe to the highest distance, the water flow at the bottom of the breeding pond carries solid waste such as dead shrimps and shrimp shells and live shrimps from the plug-in pipe sewage discharge hole to the filter basket through the sewage pipe and the side discharge box inlet, at this time, the water flows into the circulating system drain pipe from the side discharge box outlet, and the solid waste such as dead shrimps and shrimp shells and live shrimps are intercepted in the filter basket, after 20 seconds, the electric push-pull rod pushes the plug-in pipe to the lowest position, at this time, the plug-in pipe sewage discharge hole is completely hidden in the sewage pipe, and the sewage discharge is stopped, but the plug-in pipe filter hole still continuously discharges water into the sewage pipe, the water flow continuously flushes the inside of the sewage pipe, so that the solid waste such as dead shrimps and shrimp shells and live shrimps remaining in the sewage pipe are all flushed into the filter basket, after the process lasts for 20 minutes, the breeding personnel can fish the live shrimps in the filter basket back to the breeding pond, after the sewage discharge is completed, the electric control pneumatic valve is automatically closed according to the set time parameter, and the breeding personnel can regularly lift the filter basket to clean the solid waste such as dead shrimps and shrimp shells, and then put the filter basket back into the side discharge box.

[0014] The application has the following advantages: 1. The electric control push rod is used to replace the traditional plug-in pipe mode to realize automatic sewage discharge, and the intelligent management and control measures such as terminal control, timed switch and error alarm are included, so that the automatic operation is realized from the process, and the labor cost is saved.

[0015] 2. The water level difference between the breeding pond and the side discharge collection box is used to form water flow power to drive the solid waste such as shrimp shells and dead shrimps at the bottom of the pond to flow, the filter basket in the bottom discharge device and the side discharge collection box is used for shrimp discharge and collection, the live shrimps are manually sorted, and the solid waste such as shrimp shells and dead shrimps is deposited at the bottom of the basket to realize harmless separation, improve the breeding efficiency, and reduce the loss caused by the death of live shrimps due to the pollution of the water body in the breeding pond by dead shrimps; 3.The whole device of the present application has simple structure, low cost, small space occupation, and does not need to be removed during the breeding process, and does not affect the fishing and subsequent cleaning of the breeding pond after the shrimp matures. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of the electric control sewage system of the present application; Figure 2 is Figure 1 the filter base plate schematic diagram of the bottom discharge device; Figure 3 is Figure 1 the plug-in pipe structure schematic diagram; Figure 4 is Figure 1 the filter basket schematic diagram in the side discharge box; In the figure: 1, breeding pond; 2, bottom discharge device; 3, side discharge box; 4, electric control terminal; 11, water inlet pipe; 12, shrimp toilet; 13, sewage pipe; 14, circulating system outlet pipe; 21, push-pull rod fixed disc; 22, fixed support; 23, connecting rod; 24, plug-in pipe filter water inlet hole; 25, plug-in pipe; 26, plug-in pipe sewage hole; 27, bottom discharge device filter base plate; 28, fixed stainless steel pipe; 31, side discharge box water inlet; 32, side discharge box water outlet; 33, filter basket; 41, electric control device; 42, link cable; 43, electric control pneumatic valve; 44, electric push-pull rod. DETAILED DESCRIPTION

[0017] The embodiments of the present application will be described below in conjunction with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all.

[0018] Example 1 As Figure 1 shown, the electric control sewage system for non-destructive separation of dead shrimp shells and live shrimp of the present application includes a breeding pond 1, a bottom discharge device 2, a side discharge box 3, and an electric control terminal 4.

[0019] The breeding pond 1 includes a water inlet pipe 11, a shrimp toilet 12, a sewage pipe 13, and a circulating system outlet pipe 14. The bottom discharge device 2 includes a push-pull rod fixed disc 21, a fixed support 22, a connecting rod 23, a plug-in pipe 25, a bottom discharge device filter base plate 27, and a fixed stainless steel pipe 28. The side discharge box 3 includes a side discharge box water inlet 31, a side discharge box water outlet 32, and a filter basket 33. The electric control terminal 4 includes an electric control device 41, a link cable 42, an electric control pneumatic valve 43, and an electric push-pull rod 44.

[0020] The push-pull rod fixing disc 21 and the bottom discharge device filter base 27 are welded by three stainless steel pipe fixing supports 22; the plug-in pipe 25 is perforated at the top to connect with the connecting rod 23, the middle and upper part of the pipe wall is perforated with plug-in pipe filter water inlet holes 24, the diameter of the perforation is 8mm, the number of perforations is 200, and three plug-in pipe blowdown holes 26 are cut at the bottom, the radius of the blowdown hole is 9cm; the bottom discharge device filter base 27 is perforated with full-length filter water inlet holes, the width of the filter water inlet hole is 3mm, the length is 42mm, the number of perforations is 200, a drainage hole with a diameter matching the diameter of the bottom blowdown pipe 13 is formed in the middle, and a 10cm long stainless steel pipe 28 with the same diameter as the blowdown pipe 13 is welded below the drainage hole and connected with the blowdown pipe 13.

[0021] The bottom discharge device 2 is connected with the shrimp toilet 12 through the bottom discharge device filter base 27 and the shrimp toilet 12, and the stainless steel pipe 28 is inserted into the blowdown pipe 13 to serve as an auxiliary fixing function; the shrimp culture pond 1 forms a shrimp culture water circulation through the water inlet pipe 11 and the circulating system drain pipe 14.

[0022] The side discharge box 3 is welded on the side of the shrimp culture pond 1 and is connected through the blowdown pipe 13, the circulating system drain pipe 14, the side discharge box water inlet 31 and the side discharge box water outlet 32; the blowdown pipe 13 is inserted into the side discharge box water inlet hole 31 and extends upward by 5cm; the side discharge box water outlet 32 is connected with the circulating system drain pipe 14; the filter basket 33 is made of filter plates throughout, the bottom of which is a small support with a height of 3cm for placing in the side discharge box, which facilitates smooth water flow, and the bottom has a hole with a size matching the blowdown pipe for inserting the blowdown pipe 13, the diameter of the hole is 115mm, which ensures that shrimp shells, dead shrimps and live shrimps can be smoothly discharged into the filter basket 33, and a 4cm high stainless steel ring is welded around the hole to ensure that solid waste such as shrimp shells and dead shrimps will not fall from the hole when the filter basket 33 is lifted.

[0023] The electric control terminal 4 is installed near the side discharge box, and the electric control pneumatic valve 43 is installed on the connecting pipe of the side discharge box water inlet 31 and the connecting pipe of the water outlet 32, respectively; the electric push-pull rod 44 is installed on the push-pull rod fixing disc 21 and is connected with the plug-in pipe 25 through the connecting rod 23, and the up-down movement of the plug-in pipe 25 is controlled by the push-pull function; the electric control pneumatic valve 43 and the electric push-pull rod 44 are connected with the electric control device 41 through the cable 42; the electric control device 41 has a network signal and can be connected with mobile phones, tablets and other devices to control the electric control pneumatic valve 43 and the electric push-pull rod 44.

[0024] Example 2 The operation of the electric control blowdown system for non-destructive separation of dead shrimps, shrimp shells and live shrimps of the present application comprises the following steps: As Figure 1As shown, using mobile phone to connect electric control terminal, click "start pollution", electric push-pull rod 44 and electric control pneumatic valve 43 are started at the same time, at this time, electric push-pull rod 44 lifts plug-in pipe 25 to the highest distance, the water flow at the bottom of breeding pond 1 carries solid waste such as dead shrimps, shrimp shells and live shrimps from plug-in pipe pollution hole 26 along pollution pipe 13 into the water inlet 31 of side discharge box to filter basket 33, at this time, water from side discharge box water outlet 32 enters into circulating system drain pipe 14 to discharge, while dead shrimps, shrimp shells and live shrimps are intercepted in filter basket 33. After 20 seconds, electric control device 41 automatically controls electric push-pull rod 44 to push plug-in pipe 25 to the lowest position, at this time, plug-in pipe pollution hole 26 completely hides in pollution pipe 13, and no longer discharges, while plug-in pipe filter hole 24 still continuously discharges into pollution pipe 13, this part of water flow will continuously flush the inside of pollution pipe 13, so that the solid waste such as dead shrimps, shrimp shells and live shrimps remaining in pollution pipe 13 are all flushed into filter basket 33, because the pipeline is full of water flow, the live shrimps in the pipeline will not be damaged due to dehydration. After this process lasts for 20 minutes, the aquaculture personnel can fish the live shrimps in filter basket 33 back to breeding pond 1, then open the mobile phone and click "stop pollution", electric control terminal 41 will control the closing of electric control pneumatic valve 43, the aquaculture personnel can directly lift filter basket 33 to clean the solid waste such as dead shrimps and shrimp shells, then put filter basket 33 back to side discharge box 3, thus, the whole pollution process is completed.

Claims

1. An electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells from live shrimp, characterized in that: It includes a breeding pond (1), a bottom drain device (2) located in the middle of the breeding pond, and a side drain box (3) located on the side wall of the breeding pond. The aquaculture pond (1) includes a pond body, an inlet pipe (11), a shrimp toilet (12), a sewage pipe (13), and a circulating system outlet pipe (14); the inlet pipe (11) is connected to the fresh water or recycled water of the aquaculture system; the shrimp toilet (12) is located at the bottom of the aquaculture pond (1), and its outlet end is connected to the circulating system outlet pipe (14); the sewage pipe (13) is located in the middle of the shrimp toilet; The bottom drain device (2) includes an electric push-pull rod (44), a push-pull rod fixing disc (21), a fixing bracket (22), a connecting rod (23), a plug-in tube filter inlet (24), a plug-in tube (25), a plug-in tube drain hole (26), a bottom drain device filter base (27), and a fixing stainless steel pipe (28); the bottom drain device filter base (27) is fixed on the shrimp toilet (12) of the aquaculture pond (1) and a drain hole is provided in the middle; the push-pull rod fixing disc (21) is connected to the bottom drain device through three fixing brackets (22). The bottom drain device filter base (27) is connected; the electric push-pull rod (44) is installed in the middle of the push-pull rod fixing disc (21) and connected to the connecting rod (23) to control the up and down movement of the plug-in tube (25); the bottom of the plug-in tube (25) is provided with a plug-in tube drain hole (26), and the plug-in tube (25) is inserted into the drain hole in the middle of the bottom drain device filter base (27); the connecting rod (23) is fixed in the mounting hole of the plug-in tube (25); the drain hole and the drain pipe (13) are connected by a fixed stainless steel pipe (28) to form a drain system; The side drain box (3) includes a side drain box inlet (31), a side drain box outlet (32), a filter basket (33), and control valves; the side drain box (3) is welded to the side of the aquaculture pond (1); the side drain box inlet (31) is connected to the sewage pipe (13), and the side drain box inlet (31) is inside the filter basket (33); the side drain box outlet (32) is connected to the circulation system outlet pipe (14); both the side drain box inlet (31) and the side drain box outlet (32) are equipped with an electro-pneumatic valve (43) for controlling the opening and closing of the water pipes; the filter basket (33) is smaller than the side drain box.

2. The electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells and live shrimp according to claim 1, characterized in that: An electrical control terminal (4) is also provided on the side wall of the aquaculture pond. The electrical control terminal (4) includes an electrical control device (41) and a connecting cable (42). The electrical control device (41) is fixed to the side of the aquaculture pond (1). The electrical control device (41) is connected to the electrically controlled pneumatic valve (43) and the electric push-pull rod (44) through the connecting cable (42) and controls the electrically controlled pneumatic valve (43) and the electric push-pull rod (44) to form a fully automated electrically controlled sewage discharge system.

3. The electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells and live shrimp according to claim 1, characterized in that: The diameter of the plug-in tube (25) is determined according to the size of the sewage pipe (13), and the length is determined according to the water level in the breeding pond (1). Several plug-in tube filter inlet holes (24) with a diameter of 3-10mm are opened in the upper part of the plug-in tube (25). The number of holes is determined by calculating the water flow capacity after the size of the sewage pipe (13). A layer of filter mesh is tied in the area where the filter inlet hole (24) is located. Two to three plug-in tube sewage outlet holes (26) are cut out at the bottom. The size is determined according to the push-pull distance of the electric push-pull rod (44). It must be ensured that when the electric push-pull rod (44) is pushed to the maximum distance, the plug-in tube sewage outlet hole (26) is completely buried in the bottom sewage pipe (13). When pulled to the maximum distance, the plug-in tube (25) is still 1 to 2cm in the bottom sewage pipe (13).

4. The electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells and live shrimp according to claim 1, characterized in that: The bottom drain device filter base (27) is covered with long strip-shaped filter drain holes with a length of 4-6cm and a width of 3mm, and the size of the middle drain hole matches the size of the sewage pipe (13).

5. The electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells and live shrimp according to claim 1, characterized in that: The bottom of the aquaculture pond (1) has a certain slope and is funnel-shaped to ensure that solid waste such as dead shrimp and shrimp shells are collected on the bottom drain device filter plate (27).

6. The electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells and live shrimp according to claim 1, characterized in that: The sewage pipe (13) is directly connected to the water inlet (31) of the side drain box and extends out by 5cm; the water outlet pipe (14) of the circulation system is connected to the water outlet (32) of the side drain box through a three-way structure.

7. The electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells and live shrimp according to claim 1, characterized in that: The filter basket (33) is made entirely of filter plates. Its base consists of four small supports 2-3cm high to ensure that water can flow smoothly out of the side drain box outlet (32). The bottom of the filter basket (33) has holes of the same size as the drain pipe (13) for the drain pipe (13) to be inserted. A 3-5cm high circular baffle is added around the opening to prevent dead shrimp, shrimp shells and other solid waste from falling out of the opening when the filter basket (33) is lifted.

8. The electrically controlled sewage discharge system for non-destructive separation of dead shrimp shells and live shrimp according to claim 1, characterized in that: The electric push-pull rod (44) and the electric pneumatic valve (43) can be controlled not only by the electric control device (41), but also by connecting to mobile phones, computers and other devices via network signals, and control the automatic discharge and timed discharge of the starting device on the mobile terminal.

9. A method for discharging wastewater using an electronically controlled wastewater discharge system for non-destructive separation of dead shrimp shells and live shrimp as described in claims 1-8, characterized in that, When discharging sewage, the electric push-pull rod (44) and the electro-pneumatic valve (43) are activated simultaneously. At this time, the electric push-pull rod (44) lifts the insertion tube (25) to the highest distance. The water flow at the bottom of the breeding pond (1) carries dead shrimp, shrimp shells and other solid waste, as well as live shrimp, from the sewage discharge hole (26) of the insertion tube along the sewage pipe (13) into the inlet (31) of the side discharge box and into the filter basket (33). At this time, the water enters the circulation system drain pipe (14) from the outlet (32) of the side discharge box and is discharged. The dead shrimp, shrimp shells and other solid waste, as well as live shrimp, will be trapped in the filter basket (33). After 20 seconds, the electric push-pull rod (44) pushes the insertion tube (25) down to the lowest position. At this time, the sewage discharge hole of the insertion tube... (26) Completely hidden inside the drain pipe (13) and no longer draining, while the filter hole (24) of the plug-in tube continues to receive water into the drain pipe (13). This water flow will continuously flush the inside of the drain pipe (13), so that all the solid waste such as dead shrimp and shrimp shells and live shrimp left inside the drain pipe (13) are flushed into the filter basket (33). After this process lasts for 20 minutes, the aquaculture personnel can retrieve the live shrimp in the filter basket (33) and return them to the aquaculture pond (1). After the draining is completed, the electric pneumatic valve (43) is closed, and the aquaculture personnel can directly lift the filter basket (33) to clean up the solid waste such as dead shrimp and shrimp shells, and then put the filter basket (33) back into the side drain box (3).

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