CN113875687B - Shrimp culture pond tail water filtering device and using method - Google Patents
Shrimp culture pond tail water filtering device and using method Download PDFInfo
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- CN113875687B CN113875687B CN202111479429.XA CN202111479429A CN113875687B CN 113875687 B CN113875687 B CN 113875687B CN 202111479429 A CN202111479429 A CN 202111479429A CN 113875687 B CN113875687 B CN 113875687B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
Abstract
The invention relates to the technical field of marine organism breeding tail water treatment, in particular to a shrimp breeding pond tail water filtering device and a using method thereof. The shrimp collecting device comprises a water collecting pit and a shrimp collecting box, wherein the water collecting pit comprises a shell, an arc-shaped filter screen and a spherical plug, and the shell comprises a bottom vertical outlet and a side wall horizontal outlet and is connected with the shrimp collecting box; the shrimp collecting box comprises a shell and a plate-type filter screen, and is internally provided with three pipelines, wherein two water pipes are connected with the water collecting pit, and the other water pipe is communicated with the tail water pipeline and is used for collecting dead shrimps and shrimp shells flowing out of the water collecting pit and is responsible for the exchange of the culture water body; the spherical plug and the two plug-pull pipes in the shrimp collecting box jointly realize the water level control in the culture pond and the collection of the shrimp shells and dead shrimps. The invention realizes the primary separation of the shrimp shells, the dead shrimps and water in the culture pond through the water collecting pit, and realizes the secondary separation of the shrimp shells and the dead shrimps and the collection of the shrimp shells and the dead shrimps through the shrimp collecting box.
Description
Technical Field
The invention relates to the technical field of marine organism breeding tail water treatment, in particular to a shrimp breeding pond tail water filtering device and a using method thereof.
Background
During the process of prawn cultivation, algae and fungi used for regulating and controlling water quality are put into the cultivation pond, which is a necessary measure for ensuring good water quality, and further ensures the normal survival of the cultivated shrimps. The bottom of the feed in the shrimp pool is sunk, the excrement discharged by the shrimps, the shrimp shells and the dead shrimps which are generated by the growth and the sloughing of the shrimps can sink at the bottom of the culture pool, and pollutants which pollute the water quality of the culture pool are formed. Therefore, pollutants at the bottom of the culture pond need to be discharged in a water discharging mode. This action can cause pollution to the external natural environment and the water that is released is wasted.
In order to avoid waste of water resources and environmental pollution, the water circulation system is applied to shrimp culture, and water is pumped out, treated by physical filtration, biological filtration, disinfection, temperature regulation, heating and the like, and conveyed back to the culture pond again. Therefore, the water quality in the culture pond is ensured, and all water cannot be discharged, so that the waste of water and the pollution to the environment are avoided.
Therefore, a separation device for dead shrimps and shrimp shells needs to be added on the basis of a circulating water system. If set up filter screen or filter cage at the drain in breed pond, make it collect the dead shrimp and the shrimp shell that follow the tail water outflow at every turn trade water, blowdown in-process, need regularly the suction simultaneously and prevent to block up, but current separator still has following problem:
(1) when the traditional separation device filters the shrimp shells and the dead shrimps, the residual bait and excrement in the water body are also filtered, and after the traditional separation device is used for a long time, the filter screen or the filter holes are blocked by the residual bait and the excrement, so that the normal water exchange is influenced; (2) the device can be used in a culture pond with a wall oxygen water pushing device to enable shrimp shells and dead shrimps to flow to a shrimp shell filter for collection; (3) in the collecting process, although some residual baits and feces can be collected, the treatment load of a subsequent physical filtering device such as a drum filter is reduced, the effect is very limited, and the probability of dissolving the residual baits and the feces in water is increased, so that the work of a subsequent biological treatment module such as a protein separator and a biological filter is increased, and the whole situation is not compensated; (4) the separation device is easy to suck out the live shrimps in the pond, thereby causing loss.
Disclosure of Invention
The invention aims to provide a tail water filtering device of a shrimp culture pond and a using method thereof, which can realize water body exchange and shrimp shell and dead shrimp collection of the culture pond on the premise of not blocking a filter screen and not sucking live shrimps.
The tail water filtering device of the shrimp culture pond comprises a water collecting pit and a shrimp collecting box, wherein the water collecting pit and the shrimp collecting box are connected with a shrimp discharging pipe through a water changing pipe, and the shrimp collecting box is also connected with a water discharging pipe and communicated with a circulating water treatment system.
Shrimp culture pond tail water filter equipment, the sump pit includes sump pit shell, arc filter screen and spherical end cap, trades inside water pipe one end communicates the sump pit shell, row shrimp pipe one end and the row shrimp mouth intercommunication of sump pit shell bottom, arc filter screen bottom is equipped with opening I, just opening I is connected with row shrimp mouth, spherical end cap is stifled opening I is last.
Shrimp culture pond tail water filter equipment, receive the shrimp box including receiving shrimp box shell, the board filter screen, water level pipe and plug pipe length are adjustable, the inside draw-in groove that is equipped with of shell, the board filter screen inserts the draw-in groove, the board filter screen will receive shrimp box shell inside and divide into and receive the shrimp district and trade the water district, the shrimp drainage pipe other end communicates receives shrimp district bottom, trade water district bottom and drain pipe one end and trade the water pipe other end intercommunication, water level pipe and plug pipe are located and receive shrimp box shell, and correspond to install and trade water pipe and arrange the shrimp pipe and receive shrimp box shell intercommunication department.
Shrimp culture pond tail water filter equipment, the round platform type of arc filter screen for invering, the open-top II and the sump pit shell top edge of arc filter screen are connected.
The tail water filtering device of the shrimp culture pond is characterized in that the diameter of the spherical plug is larger than the opening I of the arc-shaped filter screen.
The tail water filtering device of the shrimp culture pond is provided with a pull ring on a spherical plug, and an operation rope is connected on the pull ring.
The tail water filtering device of the shrimp culture pond is characterized in that the clamping groove inclines towards the side of the water level pipe.
The tail water filtering device of the shrimp culture pond is characterized in that the water level pipe and the plug pipe are telescopic pipes.
The tail water filtering device of the shrimp culture pond is characterized in that the bottom in the water changing pipe is communicated with the bottom in the sump shell at the communication position of the water changing pipe and the sump shell.
The use method of the tail water filtering device for the shrimp culture pond comprises the following steps:
s1, installing the shrimp collecting box on the outer side wall of the shrimp culture pond, installing the water collecting pit in the center of the bottom of the shrimp culture pond, connecting the shrimp collecting box with the water collecting pit by using a water changing pipe and a shrimp discharging pipe, and communicating the water discharging pipe of the shrimp collecting box with a circulating water treatment system;
and step S2, adjusting the length of the water level pipe to enable the water level in the culture pond to be flush with the top of the water level pipe, and simultaneously controlling new water to enter the culture pond. In daily conditions, the shrimp discharge port is blocked by the spherical plug, and water flows into a water changing area of the shrimp collecting box through the arc-shaped filter screen and flows into a circulating water treatment system;
s3, when shrimp shells and dead shrimps in the pond need to be discharged, adjusting the length of the plug pipe or pulling the plug pipe off to enable the top of the plug pipe to be lower than the top of the water level pipe, controlling to remove the spherical plug, and under the influence of water level difference, the dead shrimps and the shrimp shells in the pond start to flow to a shrimp collecting area along with culture water, and are collected in the shrimp collecting area by the plate-type filter screen after flowing into the shrimp collecting area, and the culture water flows into a water exchange area through the plate-type filter screen and flows into a circulating water treatment system through a water discharge pipe;
and S4, after the shrimp shells and the dead shrimps in the culture pond are emptied, loosening the control of the spherical plug, blocking the opening I by the spherical plug along with water flow, lifting the plug pipe or installing the plug pipe back to enable the top height of the plug pipe to be higher than the top height of the water level pipe, and taking out the dead shrimps and the shrimp shells in the shrimp collecting area.
Compared with the prior art, the invention has the beneficial effects that:
compared with the prior art, the tail water filtering device for the shrimp culture pond and the using method thereof have the advantages that the water exchange of the culture pond is completed while the shrimp shells and dead shrimps in the culture pond are collected by utilizing the water level difference between the culture pond and the shrimp collecting box and the double filtering nets under the combined action of the water collecting pit and the shrimp collecting box, the inverted circular truncated cone-shaped arc-shaped filtering net can form a rotational flow after the spherical plug is removed, the rotational flow has high water discharging speed, the surrounding shrimp shells and dead shrimps can be gathered at the water collecting pit, most importantly, the rotational flow can clean the shrimp shells and the dead shrimps on the surface of the arc-shaped filtering net, the shrimp shells and the dead shrimps are prevented from blocking meshes, and the arc-shaped filtering net can be used for a long time without blocking. When the shrimp box is collected and dead shrimps and shrimp shells are not cleaned, water flowing out of the water level pipe can flow out of the water discharging pipe, the water can also penetrate through the plate type filter screen in the reverse filtering direction, the plate type filter screen is effectively prevented from being blocked, and the plate type filter screen can be used for a long time without being blocked. The cultivation personnel only need operate spherical end cap and regulation water level pipe and plug pipe can realize collecting work, consequently can be convenient for the breeder to manage a plurality of ponds of breeding. The method has the advantages of simple steps, time-saving and labor-saving operation, high efficiency of collecting the shrimp shells by the water collecting pit, light weight of the spherical plug and the plug pipe, and capability of finishing the operations of changing water and separating dead shrimps and shrimp shells by one person. The invention realizes the flexible collection of the shrimp shells and the dead shrimps in the culture pond.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of a sump according to the present invention;
FIG. 4 is a schematic view of the shrimp receiving box of the present invention;
FIG. 5 is a schematic diagram of the application of example 1 of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5;
FIG. 7 is an enlarged view of portion B of FIG. 5;
FIG. 8 is a schematic view of the distance h1 in example 1 of the present invention;
FIG. 9 is a schematic view showing the distances between h1 and h2 in example 1 of the present invention;
FIG. 10 is a schematic view of the h distance in example 1 of the present invention;
in the figure: 1. a sump; 2. a shrimp collecting box; 3. an arc-shaped filter screen; 4. a spherical plug; 5. a sump housing; 6. changing a water pipe; 7. a shrimp discharge pipe; 8. a shrimp collecting box shell; 9. a plate type filter screen; 10. a drain pipe; 11. a shrimp discharging port; 12. changing a water gap; 13. a card slot; 14. a shrimp collecting area; 15. a water exchange area; 16. inserting and pulling a pipe; 17. a water level pipe; 18. an opening I; 19. an opening II; 20. a pull ring; 21. operating a rope; 22. a culture pond; 23. a fresh water inlet pipe; 24. a fixed pulley; 25. a cantilever support.
Detailed Description
The following will be further explained with reference to the tail water filtering device of the prawn culture pond of the invention:
example 1: as shown in fig. 1-10, the shrimp culture pond tail water filtering device of the embodiment includes a water collecting pit 1 and a shrimp collecting box 2, the water collecting pit 1 and the shrimp collecting box 2 are connected with a shrimp discharging pipe 7 through a water changing pipe 6, a water discharging pipe 10 of the shrimp collecting box 2 is communicated with a circulating water treatment system, and the circulating water treatment system can be realized by adopting the prior art. The sump 1 is installed in the center of the bottom of the culture pond 22, the shrimp collecting box 2 is installed on the outer side of the wall of the culture pond 22, and the top of the shrimp collecting box 2 is flush with the top of the culture pond 22. In the culture pond 22, since the wall oxygen and the tangential water inlet can be arranged to make the water in the pond generate rotational flow, so as to ensure that the shrimp shells and dead shrimps in the pond are gathered at the center of the bottom of the pond, the water collecting pit 1 needs to be arranged at the central position inside the culture pond 22. The shrimp collecting box 2 and the water collecting pit 1 form a communicating vessel through the water changing pipe 6 and the shrimp discharging pipe 7, the shrimp collecting box has the functions of collecting shrimp shells and dead shrimps and controlling the water level of the culture pond 22 by adjusting the height of the upper edge of the water level pipe 17, and therefore the shrimp collecting box 2 needs to be installed at the upper edge of the side wall of the culture pond 22.
The culture pond 22 in the field is round or round-like, such as square rectangle, rounded rectangle, octagon, and the present embodiment adopts rounded rectangle, and the dog-ear department of the inner wall of the culture pond 22 main body is the fillet, and the bottom of the culture pond 22 main body is flat bottom or funnel-shaped. Wherein, the filth can be avoided dead angle department to pile up in the fillet design, and the circular shape is bred 22 main parts in pond and can be cooperated with the design of new water inlet tube 23, makes the direction of intaking present tangential direction, and then makes the rivers of breeding 22 main parts to the rotatory flow of same direction, and rivers impact force and gravity drive the dead shrimp, shrimp shell and the solid suspended solid of aquatic and locate the gathering to the bottom center of breeding 22 main parts in pond. The funnel-shaped bottom is also favorable for dead shrimps, shrimp shells and solid suspended matters to gather at the center of the bottom of the main body of the culture pond 22, and the efficiency of filtering and discharging sewage is improved.
Shrimp culture pond tail water filter equipment, sump pit 1 includes sump pit shell 5, arc filter screen 3 and spherical end cap 4, sump pit shell 5 is open-topped cylinder groove, trades 6 one end of water pipe and communicates inside sump pit shell 5, trades water pipe 6 and 5 intercommunication departments of sump pit shell, trades the interior bottom of water pipe 6 and is tangent with the interior bottom of sump pit shell 5. One end of the shrimp discharging pipe 7 is communicated with the shrimp discharging port 11 at the bottom of the water collecting pit shell 5, the arc-shaped filter screen 3 is in the shape of openings at the top and the bottom respectively, the large opening at the top is an opening II19, the small opening at the bottom is an opening I18, the opening I18 is connected with the shrimp discharging port 11, and the spherical plug 4 is plugged on the opening I18.
Shrimp culture pond tail water filter equipment, arc filter screen 3 is the round platform type of inversion, arc filter screen 3 detains at the top opening part of sump shell 5, opening II19 and the 5 top edge connections of sump shell of arc filter screen 3, the opening I18 and the row shrimp mouth 11 of arc filter screen 3 are connected. The spherical plug 4 blocks the opening I18, so that water can only enter the sump shell 5 through the arc-shaped filter screen 3 and then enter the water changing pipe 6 to form a water changing channel, and the changed water is treated in a centralized manner through the circulating water treatment system.
The power for the water to enter the water collecting pit shell 5 through the arc-shaped filter screen 3 and then enter the water changing pipe 6 comes from: the top of the water level pipe 17 is flush with the water level of the culture pond 22, when new water is injected into the culture pond 22 from the new water inlet pipe 23, the water surface of the culture pond 22 is slightly higher than the water level of the water level pipe 17 to form water pressure, and the water enters the water changing pipe 6 and then emerges from the top of the water level pipe 17.
After the spherical plug 4 is removed, the water in the culture pond 22 can enter the water changing pipe 6 from the water collecting pit shell 5, dead shrimps and shrimp shells can be carried to enter the shrimp discharging port 11, and the effect of cleaning the arc-shaped filter screen 3 is achieved. This application is different from prior art, and prior art's circulating water drinking-water pipe is two states, and one is the start-up and draws water, and another is the stop work. Unless need not change water, this application be remain always in the hydrologic cycle state that water got into curved filter screen 3, curved filter screen 3 department can keep appearing the state of absorbing water, can know according to the life habit of shrimp under this condition, healthy, the full active shrimp in the pond because stress and select the reverse flow thereby keep away from out the sump pit, so caused near the sump pit can not have the shrimp to exist, so can not have the shrimp to be inhaled after opening spherical end cap 4 yet.
The diameter of the spherical plug 4 in this embodiment is larger than the inner diameter of the opening I18 of the arc-shaped screen 3.
Shrimp culture pond tail water filter equipment, be equipped with pull ring 20 on the spherical end cap 4, be connected with the one end of operating rope 21 on the pull ring 20, after the fixed pulley 24 is walked around to the operating rope 21 other end, on the pool edge of breeding pond 22, be close to receipts shrimp box 2 department, the staff's operation of being convenient for, wherein the fixed pulley 24 sets up on the cantilever bracket 25 around breeding pond 22.
Shrimp culture pond tail water filter equipment, 4 densities of spherical end cap are greater than water, the diameter is greater than row shrimp mouth 11's bore, and whole spheroid outside is wrapped up by flexible material, makes it when the aquatic is stood still, can realize arranging shrimp mouth 11's complete shutoff. When the spherical plug 4 needs to be removed, a worker only needs to pull the operating rope 21 to drive the pull ring above the spherical plug 4 to move, so that the spherical plug 4 can move.
The tail water filtering device of the shrimp culture pond is divided into a young shrimp culture period and a mature shrimp culture period in the process of shrimp culture. When the shrimp grows to 5cm, the adult shrimp culture period is started, and the adult shrimp culture pond needs to be transferred. Therefore, for the young shrimp culture pond, a pipeline with the inner diameter of 160mm is selected as the shrimp discharge pipe 7, and the adult shrimps are 23 cm at most, but can be sold after growing to 20cm generally, so that the shrimp discharge pipe 7 of the adult shrimp culture pond can be selected as a pipeline with the length of 25 cm. Meanwhile, before the shrimp shells and dead shrimps are collected, the water level difference between the culture pond 22 and the shrimp collecting area 14 is controlled by workers to be more than 10cm, so that the water flow speed in the shrimp discharging pipe 7 is ensured to be high enough, and the problem of blockage is avoided.
Shrimp culture pond tail water filter equipment, receive shrimp box 2 including receiving shrimp box shell 8, board-shaped filter screen 9, water level pipe 17 and plug pipe 16 adjustable length, this embodiment adopts to insert plug pipe 16 and inserts the mode of arranging shrimp pipe 7 and receiving 2 intercommunication departments of shrimp box, receive 8 inside draw-in grooves 13 of shrimp box shell, board-shaped filter screen 9 inserts draw-in groove 13, board-shaped filter screen 9 will receive 8 inside receipts shrimp box shells and divide into and receive shrimp district 14 and trade water district 15, row shrimp pipe 7 other end intercommunication receives 14 bottoms in shrimp district, trade 15 bottoms in water district and drain pipe 10 one end and the 6 other ends of traded water pipe intercommunication, water level pipe 17 and plug pipe 16 are located receipts shrimp box shell 8, and correspond to install and trade water pipe 6 and arrange shrimp pipe 7 and receive 8 intercommunication departments of shrimp box shell. Water is changed and the shrimp shells and the dead shrimps are separated by adjusting the water level pipe 17, the plug-pull pipe 16 and the spherical plugs 4 in the culture pond 22.
The tail water filtering device of the shrimp culture pond is characterized in that the clamping groove 13 inclines towards the water level pipe 17.
The tail water filtering device of the shrimp culture pond, the water level pipe 17 and the plug pipe 16 are telescopic pipes.
The tail water filtering device for the shrimp culture pond comprises a water collecting pit 1 and a shrimp collecting box 2, wherein the diameters of a shrimp discharging port 11 and a shrimp discharging pipe 7 are consistent, the diameters of a water exchanging port 12 and a water exchanging pipe 6 are consistent, and the diameters of the shrimp discharging pipe 7 and the water exchanging pipe 6 are respectively related to the specifications of shrimps in the culture pond 22 and the volume of water in the pond.
Comparative example 1: the existing shrimp shell and dead shrimp separating device is used as a comparative example, and a circulating water intensified shrimp culture pond bottom shrimp shell discharging device with the publication number of CN210470703U is selected for comparison. The method comprises the following steps: locate the inboard double-cylinder sleeve in shrimp culture pond bottom, the double-cylinder sleeve includes cylinder portion and the stylobate part that distributes from top to bottom, the cylinder portion transversely is equipped with rivers and can gets into and communicates between the gap of cylinder portion and the gap, cylinder portion bottom is equipped with fixed interlayer, be equipped with the inner skleeve stylobate part with stylobate part adaptation in the stylobate part, fixed axis connecting rod extends to the cylinder portion outer end on the stylobate part of inner skleeve, fixed rotatable interlayer on the axis connecting rod, rotatable interlayer is located fixed interlayer top, stylobate part and the corresponding position of inner skleeve stylobate part all are equipped with the round hole, all be equipped with the fretwork on fixed interlayer and the rotatable interlayer.
Comparative example 2: the existing circulating water filtering device is used as a comparative example, and macrobrachium rosenbergii cultivation circulating water filtering equipment with the publication number of CN112174409A is selected for comparison. Including biological water filter tank, the rose box, the disinfect box, communicating pipe and drain pipe, communicate through communicating pipe between biological water filter tank and the rose box, communicate through the drain pipe between rose box and the disinfect box, the leading-in biological water filter tank of rivers in will breeding the pond is in, water is clear away a large amount of impurity in biological water filter tank, later rivers pass through communicating pipe and get into further filtration in the rose box, filter most impurity in the aquatic, the rivers pass through the drain pipe and discharge into the disinfect box at last, disinfect to water, avoid the macrobrachium rosenbergii to be infected, lead water back to breed pond formation hydrologic cycle so at last, handle the water in hydrologic cycle.
TABLE 1 comparison of the results of this example with those of the comparative example
Through the contrast, the advantage of this application lies in that the condition of jam can not appear in the long-time use to the loss that can not appear live shrimp, and can not make the decline of biofiltration device filter capacity lead to breeding the quality of water in the pond to worsen because of shrimp shell and dead shrimp get into biofiltration device.
The use method of the tail water filtering device for the prawn culture pond is further described in the following steps:
the use method of the tail water filtering device for the shrimp culture pond comprises the following steps:
s1, installing the shrimp collecting box 2 on the outer side wall of the shrimp culture pond, installing the water collecting pit 1 in the center of the bottom of the shrimp culture pond, connecting the shrimp collecting box 2 with the water collecting pit 1 by using a water changing pipe 6 and a shrimp discharging pipe 7, and communicating a water discharging pipe 10 of the shrimp collecting box 2 to a circulating water treatment system;
step S2, adjusting the length of the water level pipe 17 to enable the water level in the culture pond 22 to be flush with the top of the water level pipe 17, and simultaneously controlling new water to enter the culture pond 22; in daily conditions, the shrimp discharging opening 11 is blocked by the spherical plug 4, water flows into the water changing area 15 of the shrimp collecting box 2 through the water changing pipe 6 and the water level pipe 17 in sequence after passing through the arc-shaped filter screen 3 and flows into a circulating water treatment system through the water discharging pipe 10; the water level pipe 17 is communicated with the water changing pipe 6, the water changing pipe 6 is communicated with the culture pond 22 through the water collecting pit 1, so the water level pipe 17 and the culture pond 22 form a communicating vessel, and as the top of the water level pipe 17 is flush with the water level in the culture pond 22, as is well known, when the water level in the communicating vessel is flush, no water pressure is generated, so that the water in the culture pond 22 does not flow out when reaching the top of the water level pipe 17. At this time, new water is added into the culture pond 22, so that the water level in the culture pond 22 rises, the water level in the culture pond 22 is slightly higher than the top of the water level pipe 17, a height difference is generated between the water level in the culture pond 22 and the top of the water level pipe 17, water pressure is generated, and water flows out of the top of the water level pipe 17 and enters the water changing area 15.
Step S3, when shrimp shells and dead shrimps in the pond need to be discharged, the plug pipe 16 can be extended or pulled out, and the purpose is to form a water level difference, in this embodiment, the plug pipe 16 inserted at the joint of the shrimp discharging pipe 7 and the shrimp receiving box 2 is pulled out, so that the joint of the shrimp discharging pipe 7 and the shrimp receiving box 2 is exposed, and the height of the joint of the shrimp discharging pipe 7 and the shrimp receiving box 2 is lower than the top of the water level pipe 17, when the shrimp shells and the dead shrimps in the pond need to be discharged, the spherical plug 4 is controlled to be removed, at this time, the culture pond 22 and the shrimp receiving box 2 form a communicating vessel, which is influenced by the water level difference, the dead shrimps and the shrimp shells in the pond start to flow to the shrimp receiving area 14 along with the culture water, and the shrimp receiving area 14 is blocked by the plate-type filter screen 9, and the culture water flows into the water changing area 15 through the water discharge pipe 10 and flows into the circulating water treatment system through the plate-type filter screen 9;
when exchanging water daily and not collecting shrimp shells: the spherical plug 4 blocks the shrimp discharging pipe 7 to block a communication water path between the shrimp collecting box 2 and the culture pond 22, so that water in the culture pond 22 cannot flow into the shrimp collecting box 2 through the shrimp discharging pipe 7, namely the culture pond 22 and the shrimp collecting box 2 do not form a communication device. When new water is added into the culture pond 22 to enable the water level in the culture pond 22 to be higher than the upper edge of the water level pipe 17, the water overflows from the water level pipe 17 and flows into the shrimp receiving box 2, and then directly flows into the drain pipe 10, so that almost no water exists in the shrimp receiving box 2. At the moment, a water level pressure difference is formed between the culture pond and the shrimp receiving box 2, and the difference is the distance h between the water level in the water level pipe 17 and the bottom of the shrimp receiving box 2.
The spherical plug 4 is provided with a pull ring 20, one end of an operation rope 21 is tied on the pull ring 20, and the other end of the operation rope is tied on the edge of a culture pond 22 close to the shrimp collecting box 2 by bypassing the fixed pulley 24. When shrimp shells and dead shrimps begin to be collected, a worker pulls the operation rope 21 to be pulled downwards at one end of the pool edge of the culture pool 22, the force is turned to the force through the fixed pulley 24, the other end of the operation rope 21 pulls the spherical plug 4 to move upwards through the pull ring 20 and leave the arc-shaped filter screen 3, after the spherical plug 4 leaves the arc-shaped filter screen 3, a water path between the culture pool 22 and the plug pipe 16 is communicated, the culture pool 22 and the plug pipe 16 form a communicating device, but the top of the plug pipe 16 is level with the water level pipe 17, the water overflow speed is the same as that of the water level pipe 17, and the water pressure is not different due to the fact that the height difference is not different, so that the water pressure passing through the arc-shaped filter screen 3 and entering the shrimp discharge pipe 7 is the same, and the dead shrimps and the shrimp shells falling on the arc-shaped filter screen 3 are not moved.
At this time, the inserting and pulling tube 16 is pulled out from the connection part of the shrimp discharging tube 7 and the shrimp receiving box 2, and the culture pond 22 and the shrimp receiving box 2 form a communicating vessel. If the height difference between the connection position of the shrimp discharging pipe 7 and the shrimp receiving box 2 and the water level in the culture pond 22 is h2, and the difference between the height of the top of the water level pipe 17 and the water level of the culture pond 22 is h1, then h2 is obviously larger than h1, then a larger water pressure is formed between the connection position of the shrimp discharging pipe 7 and the shrimp receiving box 2 and the water level of the culture pond 22, at this time, a larger water pressure and a quicker water flow enter the shrimp discharging pipe 7, the water in the culture pond 22 is influenced by the water level pressure difference, the shrimp shells and the dead shrimps are entrained to flow into the shrimp receiving area 14 of the shrimp receiving box 2 through the shrimp discharging pipe 7, then the water flows into the water changing area 15 through the plate type filter screen 9 and then flows into the water discharging pipe 10 for the next water treatment, and the shrimp shells and the dead shrimps are trapped to the shrimp receiving area 14 by the filter screen type 9.
Step S4, after a period of time, after the shrimp shells and the dead shrimps in the culture pond are emptied, the worker loosens the operation rope 21, the spherical plug 4 falls on the arc-shaped filter screen 3 under the combined action of the self weight, the water flow and the arc-shaped filter screen 3, blocks the shrimp discharging pipe 7, blocks the water path, reinserts the plug-pull pipe 16 into the joint of the shrimp discharging pipe 7 and the shrimp collecting box 2, all water in the shrimp collecting box 2 flows into the drain pipe 10, and the operator can directly collect the shrimp shells and the dead shrimps in the shrimp collecting area 14.
In the step S1, in the cultivation pond 22, since the wall oxygen and the tangential water inlet can be provided to make the water in the pond generate a rotational flow, so as to ensure that the shrimp shells and dead shrimps in the pond are gathered at the center of the bottom of the pond, the sump 1 needs to be installed at the center inside the cultivation pond 22. The shrimp collecting box 2 and the water collecting pit 1 form a communicating vessel through the water changing pipe 6 and the shrimp discharging pipe 7, the shrimp collecting box has the functions of collecting shrimp shells and dead shrimps and controlling the water level of the culture pond 22 by adjusting the height of the upper edge of the water level pipe 17, so that the shrimp collecting box 2 needs to be installed at the upper edge of the side wall of the culture pond 22, and the upper edges of the shrimp collecting box 2 and the side wall of the culture pond 22 are flush.
And step S2, controlling the water level difference between the culture pond 22 and the shrimp collecting area 14 to be more than 10cm, ensuring that the water flow speed in the shrimp discharging pipe 7 is high enough, and avoiding the blockage problem.
In the step S3, when there are many shrimp shells and dead shrimps in the pond, the rope is operated to lift the spherical plug 4 to open the shrimp discharging port 11, and the height of the plug tube 16 is lower than that of the water level tube 17, i.e. the height of the plug tube 16 is shortened or the plug tube 16 is pulled off, so that a water level difference is generated between the culture pond 22 and the shrimp collecting area 14, and the shrimp shells and the dead shrimps flow into the shrimp discharging tube 7 and flow out from the plug tube 16 to enter the shrimp collecting area 14 of the shrimp collecting box 2; in the area, the shrimp shells and the dead shrimps are intercepted by the plate-type filter screen 9 in the shrimp collecting area 14, the culture water can pass through the plate-type filter screen 9 and enter the water exchange area 15, finally enters the water discharge pipe 10, and other small-particle dirt except the shrimp shells and the dead shrimps in the culture pond is further removed through other equipment such as a micro-filter.
According to the using method of the shrimp culture pond tail water filtering device, whether the shrimp collecting box 2 of the water collecting pit 1 works normally or not is checked in the step S1, serious consequences that filtering cannot be conducted and water leakage cannot be conducted due to the fact that a filter screen is blocked and a pipeline is broken are avoided, and a water level metering mode is adopted for checking. After the detection is correct, daily shrimp harvesting and water changing are carried out.
Claims (8)
1. The tail water filtering device for the shrimp culture pond is characterized by comprising a water collecting pit (1) and a shrimp collecting box (2), wherein the water collecting pit (1) and the shrimp collecting box (2) are connected with a shrimp discharging pipe (7) through a water changing pipe (6), and a water discharging pipe (10) of the shrimp collecting box (2) is communicated with a circulating water treatment system; the collecting pit (1) comprises a collecting pit shell (5), an arc-shaped filter screen (3) and a spherical plug (4), one end of a water changing pipe (6) is communicated with the inside of the collecting pit shell (5), one end of a shrimp discharging pipe (7) is communicated with a shrimp discharging port (11) at the bottom of the collecting pit shell (5), an opening I (18) is formed in the bottom of the arc-shaped filter screen (3), the opening I (18) is connected with the shrimp discharging port (11), and the spherical plug (4) is plugged on the opening I (18);
receive shrimp box (2) including receiving shrimp box shell (8), board-shaped filter screen (9), water level pipe (17) and plug pipe (16) length are adjustable, receive shrimp box shell (8) inside draw-in groove (13) that is equipped with, board-shaped filter screen (9) insert draw-in groove (13), board-shaped filter screen (9) will receive shrimp box shell (8) inside and divide into and receive shrimp district (14) and trade water district (15), arrange shrimp pipe (7) other end intercommunication and receive shrimp district (14) bottom, trade water district (15) bottom and drain pipe (10) one end and trade water pipe (6) other end intercommunication, water level pipe (17) and plug pipe (16) are located and receive shrimp box shell (8), and correspond to install and trade water pipe (6) and arrange shrimp pipe (7) and receive shrimp box shell (8) intercommunication department.
2. The shrimp culture pond tail water filter device of claim 1, characterized in that the curved filter screen (3) is of an inverted round table shape, and the opening II (19) at the top of the curved filter screen (3) is connected with the top edge of the sump housing (5).
3. The shrimp culture pond tail water filter device of claim 1 wherein the spherical plug (4) has a diameter larger than the opening I (18) of the arcuate screen (3).
4. The shrimp culture pond tail water filtering device as claimed in claim 1, characterized in that the spherical stopper (4) is provided with a pull ring (20), and the pull ring (20) is connected with an operating rope (21).
5. The shrimp aquaculture pond tail water filter device of claim 1, wherein the neck (13) is inclined toward the water level pipe (17) side.
6. The shrimp culture pond tail water filter device of claim 1 wherein the water level pipe (17) and the plug pipe (16) are telescopic pipes.
7. The shrimp culture pond tail water filtering device as claimed in claim 1, wherein the bottom inside the water changing pipe (6) is communicated with the bottom inside the sump housing (5) at the place where the water changing pipe (6) is communicated with the sump housing (5).
8. A method for using a shrimp culture pond tail water filtering device applied to the shrimp culture pond tail water filtering device of any one of claims 1-7, which is characterized by comprising the following steps: the method comprises the following steps:
s1, installing the shrimp collecting box (2) on the outer side wall of the culture pond (22), installing the water collecting pit (1) in the center of the bottom of the culture pond (22), connecting the shrimp collecting box (2) with the water collecting pit (1) by using a water changing pipe (6) and a shrimp discharging pipe (7), and communicating a water discharging pipe (10) of the shrimp collecting box (2) with a circulating water treatment system;
s2, adjusting the length of the water level pipe (17) to enable the water level in the culture pond (22) to be flush with the top of the water level pipe (17), and simultaneously controlling new water to enter the culture pond (22); under the daily condition, the shrimp discharge opening (11) is blocked by the spherical plug (4), and water flows into a water changing area (15) of the shrimp collecting box (2) through the arc-shaped filter screen (3) and flows into a circulating water treatment system;
s3, when shrimp shells and dead shrimps in the pond need to be discharged, the lengths of the plug pipes (16) are adjusted or the plug pipes are unplugged, the tops of the plug pipes (16) are lower than the top of the water level pipe (17), the spherical plugs (4) are controlled to be removed, the plug pipes are influenced by water level difference, the dead shrimps and the shrimp shells in the pond start to flow to a shrimp receiving area (14) along with culture water, the dead shrimps and the shrimp shells flow into the shrimp receiving area (14) and then are cut in the area by a plate-type filter screen (9), and the culture water flows into a water changing area (15) through the plate-type filter screen (9) and flows into a circulating water treatment system through a water discharge pipe (10);
and S4, after the shrimp shells and the dead shrimps in the pond (22) to be cultured are emptied, the control on the spherical plug (4) is released, the spherical plug (4) blocks the opening I (18) along with water flow, the plug-pull pipe (16) is lifted or the plug-pull pipe (16) is installed to enable the top height of the plug-pull pipe to be higher than the top height of the water level pipe (17), and the dead shrimps and the shrimp shells in the shrimp collecting area (14) are taken out.
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