CN112369360B - Automatic feeding device for prawn offspring cultivation and operation method - Google Patents

Automatic feeding device for prawn offspring cultivation and operation method Download PDF

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Publication number
CN112369360B
CN112369360B CN202011369195.9A CN202011369195A CN112369360B CN 112369360 B CN112369360 B CN 112369360B CN 202011369195 A CN202011369195 A CN 202011369195A CN 112369360 B CN112369360 B CN 112369360B
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bait
control system
central control
shrimp
valve
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CN112369360A (en
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冀德伟
张敏
胡利华
闫茂仓
黄贤克
张炯明
陈琛
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Zhejiang Mariculture Research Institute
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Zhejiang Mariculture Research Institute
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/80Feeding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/20Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/20Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
    • B05B15/25Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

Abstract

The invention discloses an automatic feeding device for prawn offspring seed cultivation and an operation method, which are characterized by comprising a central control system, a bait bin, a wash trough, a temporary discharging trough and a cultivation pool, wherein the bait bin, the wash trough, the temporary discharging trough and the cultivation pool are sequentially arranged; compared with the prior art, the automatic feeding device for the shrimp seed cultivation pond is accelerated by adopting an ultrasonic oscillator, a circulating water pump and a mechanical action to roll the bait, improves the material washing effect, and can feed the shrimp seed in a timing and quantitative manner by controlling a central control system and designing a valve, thereby saving manpower and being particularly suitable for being used in shrimp factory-like shrimp seed cultivation workshops.

Description

Automatic feeding device for prawn offspring cultivation and operation method
Technical Field
The invention belongs to the technical field of aquaculture, and relates to an automatic feeding device for prawn fingerling cultivation, and an operation method of the automatic feeding device for prawn fingerling cultivation.
Background
The feeder is an indispensable small mechanical device in industrial cultivation, in the shrimp industry, but the existing feeder is mainly applied to shrimp cultivation period, and is mainly fed in a manual one-to-one feeding mode, the intelligent automation degree is low, the manpower occupation of the semi-automatic feeder is large, the existing feeder is provided with a certain automation type feeder, but the feeder is mainly provided with a function of feeding in a timed and quantitative manner, and in the shrimp seed cultivation period, automatic feeding devices for baits of shrimp seeds are rarely reported; the applicant considers that the same large-scale shrimp seed cultivation field can have shrimp seed ponds with different development periods and different seed amounts and needs to put different amounts of baits, so the automatic feeding device for shrimp seed cultivation with multiple control is designed.
Disclosure of Invention
The invention aims to provide an automatic feeding device for prawn offspring seed cultivation and an operation method thereof, wherein the automatic feeding device is operated by a central control system preset value parameter, a vibration device is arranged to be matched with a washing tank to wash pre-prepared baits, and the automatic feeding device is applicable to cultivation ponds with various feeding quantity by flow control.
The invention provides an automatic feeding device for breeding prawn fries, which is characterized in that: the bait bin is connected with the central control system, the outlet of the bait bin is provided with a flow valve, and the bait bin is controlled by the central control system to open and close the flow valve so as to quantitatively throw the shrimp larvae; the automatic bait feeding device is characterized in that a net frame of a fine net mesh is arranged in the bait washing tank, an opening of the net frame is opposite to a flow valve outlet of a bait bin, the net frame is used for receiving shrimp bait put in the bait bin, the shock device, a water inlet pipe and a water outlet pipe are further arranged in the bait washing tank, the shrimp bait in the net frame is quickly and uniformly mixed in the bait washing tank through shock after the shock device is started, a circulating water pump used for driving liquid in the bait washing tank to continuously flow so as to promote the uniform mixing of the shrimp bait is arranged between the water inlet pipe and the water outlet pipe, a valve controlled by a central control system is further arranged on the water outlet pipe and the water inlet pipe, the valve is used for controlling initial water inlet of the bait washing tank and guiding the bait mixed liquid after the bait washing is finished into a temporary discharging tank, the temporary discharging tank is arranged between the bait washing tank and the cultivating tank, the temporary discharging tank is further provided with a pressurizing pump valve used for spraying the bait through a feeding pipeline, and a sprinkler head used for spraying the bait is further arranged at the tail end of the feeding pipeline.
As a further arrangement of the scheme, the oscillating device is an ultrasonic oscillator which is fixedly arranged at the bottom of the washing trough right below the screen frame and is electrically connected with the central control system.
As a further arrangement of the scheme, the automatic feeding device is made of PVC anti-corrosion materials.
As a further arrangement of the scheme, the pressurizing pump valve is controlled by the central control system to be started after receiving a command of spraying the bait, and the bait mixed liquid in the temporary discharging groove is sucked and conveyed to the sprinkler head end to be sprayed.
Through the arrangement, the automatic feeding device is controlled by the central control system to be opened at regular time before feeding, quantitative mixed shrimp larva baits are put into the net frame of the fine net in the trough through the flow valve controlled by the central control system, after initial water inflow of corresponding quantity is injected, the valves of the water inlet pipe and the water outlet pipe are closed to keep the water quantity in the trough, the circulating water pump with the ultrasonic vibrator and the trough is restarted, the water body in the trough is continuously circulated between the water inlet pipe, the water outlet pipe and the trough through the circulating water pump, the net frame is washed through the water inlet pipe outlet, the mixed baits are fully and uniformly washed through the combined vibration device, the mixed liquid is conveyed into the temporary discharging trough through the control system after the material washing is completed, the stirring device in the temporary discharging trough is started to enable the mixed liquid to be continuously stirred, the mixed liquid is prevented from being condensed and precipitated to be unfavorable for the next step of spraying baits, and when the timing of the feeding of the central control system is completed, the pressurized pump valve is controlled to be opened to pump the mixed liquid of baits in the trough, and the mixed liquid of the mixed baits in the temporary discharging trough is sprayed to the cultivation pond through the shower nozzle.
As a further setting of above-mentioned scheme, the net frame is drum form and divide into three-layer structure, and the outermost is the framework and is used for propping up the whole profile of net frame, inlayer be the pocket and be used for holding the bait that the bait storehouse was put in, be provided with between framework and the pocket and wash material mechanism, be provided with annular slide rail on its framework inner wall, it includes washes material subassembly body and drive unit to wash material mechanism, it is protruding that the side of material mechanism is provided with the slider, the slider is protruding to correspond the setting with the slide rail.
As the further setting of above-mentioned scheme, wash the servo motor that the material mechanism's drive unit was fixed to set up for relative framework, its main shaft tooth is connected and is washed the material subassembly body, and the drive is washed the material subassembly body and is rotated along slide rail relative framework and pocket circumference, wash the material subassembly body still including being disc type rotating assembly, fixed setting set up relative material subassembly body circumferential rotation's rolling stick on rotating assembly, rotating assembly articulates in washing the material subassembly body and the end has tooth form structure, the framework on still set up the tooth form recess of round, be provided with drive gear group on the material subassembly body, drive gear group is used for gear engagement transmission drive all rotating assembly circumferential rotation when washing material subassembly body circumferential rotation.
Through above-mentioned setting, utilize mechanical structure to simulate the manual work and wash the operation of material stage at mixed bait, this device is through its triple effect of washing the material design of combining ultrasonic oscillator and circulating water pump, let bait flash mixed and make it mix more thoroughly fully even, the mechanical structure of the artifical material of washing of simulation of this device design can be servo motor through the drive unit, independent drive combines gear engagement transmission, its contact surface with the interior pocket of net frame is the design that has the chamfer, and design interval between relatively, the pocket blocks when having avoided stirring.
As a further arrangement of the scheme, the valves are all arranged as one-way circulation electromagnetic valves.
Through the arrangement, the unidirectional flow battery valve is controlled by the central control system to be opened and closed, so that fluid can conveniently pass through the unidirectional flow battery valve according to a certain direction, and backflow of the fluid is prevented.
As a further arrangement of the scheme, the feeding pipeline is also provided with a flow control valve which is electrically connected with the central control system.
As a further arrangement of the scheme, the pressurizing pump valve can reversely pump the bait mixed liquid in the feeding pipeline.
Through the arrangement, the flow control valve arranged on the feeding pipeline is used for controlling metering of the central control system to convey the quantity of the bait mixed liquid to the corresponding cultivation pool, the cultivation pool is closed after the quantity reaches a set value, other cultivation pools continue to spray, and the pressurizing pump valve works reversely to reversely extract the bait mixed liquid retained in the feeding pipeline to the temporary discharging tank.
The operation method of the automatic feeding device for the young prawn culture is characterized by comprising the following steps:
s1: pre-preparing shrimp larva bait in flake or powder form, and placing the shrimp larva bait into a bait bin;
s2: starting an automatic feeding device, and presetting automatic feeding parameters including timing and quantitative parameters in a central control system by staff;
s3: after the automatic feeding is started, the central control system sends a command to the flow valve and opens the outlet of the bait bin, and the shrimp larvae bait is quantitatively fed towards the net frame of the wash trough;
s4: when bait is put in, the central control system controls the valve of the water inlet pipe to be opened, mixed water is injected into the trough for mixing, and the quantity of the mixed water correspondingly changes with the bait quantity of the shrimp larvae;
s5: after the water and the shrimp larva baits are completely put in, the central control system controls the material washing mechanism and the oscillating device of the material washing groove net frame to start, and the shrimp larva baits in the net frame are uniformly mixed with the water by combining mechanical rolling baits with the oscillating device based on an ultrasonic oscillator, so that powdery or flaky shrimp larva baits are better dissolved in the water; the method comprises the steps of carrying out a first treatment on the surface of the
S6: valves of the water inlet pipe and the water outlet pipe are kept closed in the material washing process, and the circulating water pump is started, so that water mixed with shrimp larvae bait in the material washing tank is continuously circulated in the material washing tank, and better mixing is achieved;
s7: the central control system controls the oscillating device to stop working at regular time, opens a valve at the end of the water outlet pipe, guides the bait mixed liquid in the trough into the temporary discharge trough, and opens a stirring device in the temporary discharge trough;
s8: after all the bait mixed liquid in the washing tank is led out, the central control system starts washing or spraying again according to the setting selection;
s9: the central control system opens the pressurizing pump valve for sprinkling at regular time, the flow control valve opens the bait mixed liquid to flow out along the feeding pipeline of the temporary discharging tank, and the sprinkling is uniformly carried out through the sprinkling heads arranged in each cultivating pool.
Compared with the prior art, the scheme of the invention has the beneficial effects that: compared with the existing method, the automatic feeding device for shrimp seed cultivation is mainly used for washing pre-prepared powdery or flaky shrimp seed baits, and compared with the existing method, the automatic feeding device for shrimp seed cultivation is used for washing the pre-prepared powdery or flaky shrimp seed baits, and a mechanical structure is further added for simulating manual actions during mixing the baits for washing the baits, so that the baits are mixed thoroughly, fully and uniformly, the automatic feeding device can feed the baits at regular time and quantity through the control of a central control system and the valve design, labor is saved, and the automatic feeding device is particularly suitable for being used in large-area shrimp seed cultivation fields with different production periods.
Drawings
Fig. 1 is a schematic structural diagram of an automatic feeding device according to the scheme;
FIG. 2 is a schematic diagram of the structure of the frame in this embodiment;
fig. 3 is an enlarged schematic diagram of a structure at a position a of the frame of fig. 2 according to this embodiment.
Description of the drawings: 11. a valve; 12. a feeding pipeline; 2. bait bin; 21. a flow valve; 3. a washing tank; 31. a screen frame; 311. a material washing mechanism; 3111. a material washing assembly body; 3112. a driving unit; 3116. a drive gear set; 3117. rolling the rod; 3118. a rotating assembly; 312. a mesh bag; 313. a frame; 3131. a slide rail; 3138. tooth-shaped grooves; 32. an oscillating device; 33. a water inlet pipe; 34. a water outlet pipe; 35. a circulating water pump; 4. a temporary discharge chute; 41. a pressurization pump valve; 42. a stirring device; 5. a cultivation pool; 51. shower nozzle.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. In addition, the embodiments of the present application and the features in the embodiments may be combined with each other without conflicting with each other.
An automatic feeding device for culturing prawn seeds as shown in fig. 1-3, which is characterized in that: the bait bin 2 is connected with the central control system, the outlet of the bait bin 2 is provided with a flow valve 21, and the central control system controls the flow valve 21 to be opened and closed so as to quantitatively throw the shrimp larvae bait; the bait tank is characterized in that a net frame 31 of a fine net mesh is arranged in the bait tank 3, an opening of the net frame 31 is opposite to an outlet of a flow valve 21 of the bait bin 2, the net frame 31 is used for receiving shrimp bait put in the bait bin 2, the net tank 3 is further provided with a vibration device 32, a water inlet pipe 33 and a water outlet pipe 34, the shrimp bait in the net frame 31 is quickly and uniformly mixed in the net tank 3 through vibration after the vibration device 32 is started, a circulating water pump 35 used for driving liquid in the net tank 3 to continuously flow so as to promote the uniform mixing of the shrimp bait is arranged between the water inlet pipe 33 and the water outlet pipe 34, a valve 11 controlled by a central control system is further arranged on the water outlet pipe 33 and the water inlet pipe 34, the valve 11 is used for controlling initial water inlet of the net tank 3 and the bait mixed liquid after the completion of the bait tank is led into a temporary discharging tank 4, the temporary discharging tank 4 is arranged between the net tank 3 and the cultivating pool 5, the temporary discharging tank 4 is internally provided with a stirring device 42 for continuously stirring the bait mixed liquid, the temporary discharging tank 4 is connected with the cultivating pool 12 through a feeding pipeline 5, and the feeding pipeline 5 is further provided with a spraying nozzle 51 positioned at the tail end of the spraying pipeline 41.
As a further arrangement of the above scheme, the oscillating device 32 is an ultrasonic oscillator, and is fixedly installed at the bottom of the trough 3 directly below the screen frame 31 and electrically connected with the central control system.
As a further arrangement of the scheme, the automatic feeding device is made of PVC anti-corrosion materials.
As a further arrangement of the scheme, the pressurizing pump valve 41 is controlled by the central control system to be started after receiving a command of spraying the bait, and the bait mixed liquid in the temporary discharging chute 4 is sucked and conveyed to the sprinkler head 51 for spraying.
Through the arrangement, the automatic feeding device is controlled by the central control system to be opened before timing feeding, quantitative shrimp larva baits are put in the net frame of the fine net in the trough through the flow valve control, after corresponding amount of water is injected, the oscillating device and the circulating water pump of the ultrasonic oscillator are started, the ground bait mixed liquid in the trough is continuously enabled to be circularly flushed through the circulating water pump, the net frame is combined with the oscillating device to carry out fully and uniformly material washing, the bait mixed liquid is conveyed into the temporary discharging trough through the control of the central control system after material washing is completed, the stirring device is started to continuously stir the bait mixed liquid, the shrimp larva baits in the bait mixed liquid are prevented from being precipitated and condensed, and when timing countdown of feeding of the central control system is completed, the pressurizing pump valve is started to pump the bait mixed liquid in the temporary discharging trough to convey the bait mixed liquid to the cultivation pond through the shower nozzle.
As a further arrangement of the above scheme, the net frame 31 is in a barrel shape and is divided into three layers, the outermost layer is a frame body 313 for supporting the whole outline of the net frame 31, the inner layer is a net bag 312 for containing bait put in the bait bin 2, a material washing mechanism 311 is arranged between the frame body 313 and the net bag 312, an annular sliding rail 3131 is arranged on the inner wall of the frame body 313, the material washing mechanism 311 comprises a material washing assembly body 3111 and a driving unit 3112, a sliding block protrusion 3113 is arranged on the side face of the material washing mechanism 311, and the sliding block protrusion 3113 is arranged corresponding to the sliding rail 3131.
As a further arrangement of the above solution, the driving unit 3112 of the material washing mechanism 311 is a servo motor fixedly disposed relative to the frame 313, the spindle teeth of the servo motor are connected to the material washing assembly body 3111, and the material washing assembly body 3111 is driven to rotate circumferentially relative to the frame 313 and the mesh bag 312 along the sliding rail 3131, the material washing assembly body 3111 further includes a disc-shaped rotating assembly 3118, a rolling bar 3117 fixedly disposed on the rotating assembly 3118 and rotating circumferentially relative to the material washing assembly body 3111, the rotating assembly 3118 is hinged in the material washing assembly body 3111, the end of the rotating assembly body is provided with a toothed structure, the frame 313 is further provided with a circle of toothed grooves 3138, the material washing assembly body 3111 is provided with a driving gear set 3116, and the driving gear set 3116 is used for driving all the rotating assemblies 3118 to rotate circumferentially in a gear engagement manner when the material washing assembly body 3111 rotates circumferentially.
Through the arrangement, after the material washing is started, the circulating water pump continuously washes the water in the material washing tank 3 out of the mesh bag 312 in the mesh frame 31, the driving unit servo motor is started, the material washing mechanism is driven to circumferentially rotate relative to the mesh frame through the cooperation of the main shaft and the tooth patterns on the upper end surface of the material washing mechanism, meanwhile, the transmission gear set 3116 embedded in the material washing assembly body 3111 is meshed with the tooth-shaped grooves 3138 arranged on the inner wall of the fixed mesh frame 31 in a hinged manner, the rotating assembly 3118 on the other side is driven to rotate along the hinged position of the rotating assembly 3118 and the material washing assembly body as the center of a circle, so that the rolling rod 3117 extending towards the direction of the mesh bag 312 is propped against the mesh bag 312 and rotates in two opposite directions to extrude the bait in the mesh bag 312, the process of material washing is accelerated more thoroughly and completely, and the material washing process is avoided, and the material washing is not thoroughly condensed in the material feeding device for a long time.
As a further arrangement of the above solution, the valves 11 are all provided as one-way flow solenoid valves.
Through the arrangement, the unidirectional flow battery valve is controlled by the central control system to be opened and closed, so that fluid can conveniently pass through the unidirectional flow battery valve according to a certain direction, and backflow of the fluid is prevented.
As a further arrangement of the above scheme, the feeding pipeline 12 is also provided with a flow control valve 13 which is electrically connected with the central control system.
As a further arrangement of the above, the pump valve 41 may be operable to draw the bait mix in the dosing line in a reverse direction.
Through the arrangement, the flow control valve arranged on the feeding pipeline is used for controlling metering of the central control system to convey the quantity of the bait mixed liquid to the corresponding cultivation pool, the cultivation pool is closed after the quantity reaches a set value, other cultivation pools continue to spray, and the pressurizing pump valve works reversely to pump the bait mixed liquid retained in the feeding pipeline to the temporary discharging groove for collecting and uniformly discharging.
Working principle: an operation method of an automatic feeding device for prawn fingerling cultivation is characterized by comprising the following steps:
s1: the pre-preparation comprises the steps of mixing the shrimp larvae bait in a flake shape, placing the shrimp larvae bait into a bait bin 2, and automatically preparing the bait by adopting special mixed powder or flake bait according to nutrition requirements;
s2: starting an automatic feeding device, and presetting automatic feeding parameters in a central control system by a worker, wherein the automatic feeding parameters comprise timing material washing, material washing quantity, material washing parameters, timing feeding, quantitative parameters and the like;
s3: after automatic feeding starts, the central control system sends a command to the flow valve 21 and opens the outlet of the bait bin 2, shrimp larva bait is quantitatively fed towards the net frame 31 of the washing trough 3, the flow valve 21 is changed according to the actual bait condition, if the bait is unsuitable to adopt the flow valve 21, the bait can be adjusted to an electronic counter with an electronic weight sensing device according to the actual condition, the electronic counter is similar to an electronic balance with a power device, after the set quality is reached, the flow valve 21 is started for feeding, and the setting of metering the bait is met;
s4: when bait is put in, the central control system controls the valve 11 of the water inlet pipe 33 to be opened, mixed water is injected into the trough 3 for mixing, the quantity of the mixed water correspondingly changes with the bait quantity of the shrimp larvae, and the mixed water is quantitatively injected by a calculation formula preset in the central control system according to the metering of the flow valve 21 in the last step;
s5: after the water and the shrimp larva baits are completely put in, the central control system controls the material washing mechanism 311 and the oscillating device 32 of the net frame 31 of the material washing groove 3 to start, the shrimp larva baits in the net frame 31 are uniformly mixed with the water through combining the mechanical rolling baits with the oscillating device 32 based on an ultrasonic oscillator, and the powdery or flaky shrimp larva baits are better dissolved in the water, the oscillating device 32 and the material washing mechanism 311 have the significance of replacing the traditional manual material washing, and workers need to knead the shrimp larva baits filled in fine meshes continuously, so that the baits are mixed in the water through the fine meshes to form a bait mixture;
s6: the valves 11 of the water inlet pipe 33 and the water outlet pipe 34 are kept closed in the material washing process, the circulating water pump 35 is opened, so that water mixed with shrimp larvae and baits in the material washing tank 3 is continuously circulated in the material washing tank to be better mixed, and in the previous step, the liquid in the material washing tank 3 is continuously circulated through the circulating water pump 35 by combining the water inlet pipe 33 and the water outlet pipe 34, so that the mixing is more uniform;
s7: the central control system controls the oscillating device 32 to stop working at regular time, opens a valve 11 at the end of a water outlet pipe 34, guides the bait mixed liquid in the washing tank 3 into the temporary discharging tank 4, opens a stirring device 42 in the temporary discharging tank 4, calculates the time setting of washing materials at regular time through the central control system to stop the oscillating device 32, then opens the valve 11 of the water outlet pipe 34, guides the bait mixed liquid in the washing tank 3 out, temporarily stores the bait mixed liquid in the temporary discharging tank 4, and avoids precipitation and condensation through continuous stirring of the stirring device 42;
s8: after all the bait mixed liquid in the washing tank 3 is led out, the central control system starts washing or sprinkling again according to the setting selection, and if the further command of the central control system is to wash the bait again, the left washing tank 3 repeats the steps to continue adding the bait mixed liquid into the temporary discharging tank 4;
s9: the central control system starts the pressurizing pump valve 41 for sprinkling material at regular time, the flow control valve 13 starts the bait mixed liquid to flow out along the feeding pipeline 12 of the temporary discharging tank 4, the shower nozzle 51 arranged in each cultivating tank 5 is used for uniformly feeding material, after the counting down of the feeding set in the step S2 is finished, the central control system starts the pressurizing pump valve 41 to pump the bait mixed liquid obtained by washing the temporary discharging tank 4 in the step through the pressurizing pump valve 41, the bait mixed liquid is pumped into the feeding pipeline 12 and applied with certain pressure, the flow control valve 13 of the corresponding cultivating tank 5 is controlled to open a flow channel through the feeding quantity set in the step 2 and the corresponding cultivating tank 5 by the central control system, the bait mixed liquid is fed back in real time to be uniformly sprinkled on the seedling water of the cultivating tank 5 through the shower nozzle 51 with the characteristics, when the corresponding baits reach the preset quantity, the central control system sends out commands to control the closing of the flow control valves 13, stopping feeding the baits to the corresponding cultivation tanks 5 until all the flow control valves 13 are closed, starting the operation again after the closing of the pressurizing pump valve 42, reversely pumping the retained mixed solution of the baits in the pipeline to the temporary discharging tank 4 to collect and wait for uniform discharging, when all the flow control valves 13 are closed, indicating that the feeding in the tanks reaches the standard quantity, restarting the automatic feeding device, re-feeding the water by the control valve of the water inlet pipe 33, wherein the opening is used for flushing the inside of the automatic feeding device, discharging the residual baits in the pipeline and the device including the baits pumped back to the temporary discharging tank 4 into the cultivation tanks 5 through the shower nozzle, automatically cleaning the inside of the automatic feeding device through flushing, then the automatic feeding device enters a silent state and waits for the next countdown to be started again.
The bait bin 2 of the invention can be provided with a plurality of baits with various nutrition formulas through pre-adjustment and is counted in a control program, and the baits are thrown in through the program control flow valve 21, so that the shrimps in different development periods can be mixed or better subjected to nutrition collocation, the water outlet of the water inlet pipe 33 can face into the net frame 31 of the washing trough 3, and can also be flushed towards the outer side of the net frame 31 of the washing trough 3, an operator can adjust according to actual conditions of the baits, and the problem that the baits overflow from the upper part of the net frame 31 without cover is avoided when facing the inside of the net frame 31 is considered.
Compared with the existing method, the automatic feeding device for shrimp seed cultivation is mainly used for washing pre-prepared powdery or flaky shrimp seed baits, and is especially suitable for large-area shrimp seed cultivation fields by adopting an ultrasonic oscillator and a circulating water pump to wash the baits and adding a mechanical structure to simulate manual actions during mixed bait washing, so that the baits are thoroughly, fully and uniformly mixed, and the automatic feeding device can be used for feeding the baits in a timing and quantitative mode through the control of a central control system and the valve design, and labor is saved.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (2)

1. An automatic feeding device for prawn offspring cultivation, which is characterized in that: the bait bin (2) is connected with the central control system, a flow valve (21) is arranged at the outlet of the bait bin (2), and the bait bin (2) is controlled by the central control system to open and close the flow valve (21) so as to quantitatively throw the shrimp larvae; the utility model discloses a bait mixing device, which is characterized in that a net frame (31) of a fine net mesh is arranged in a wash trough (3), an opening of the net frame (31) is opposite to an outlet of a flow valve (21) of a bait bin (2), the net frame (31) is used for receiving shrimp bait put in the bait bin (2), the wash trough (3) is also provided with an oscillating device (32), a water inlet pipe (33) and a water outlet pipe (34), the shrimp bait in the net frame (31) is quickly and uniformly mixed in the wash trough (3) through oscillation after the oscillating device (32) is started, a circulating water pump (35) used for driving liquid in the wash trough (3) to continuously flow so as to promote the uniform mixing of the shrimp bait, a valve (11) controlled by a central control system is also arranged on the water outlet pipe (34) and the water inlet pipe (33), the valve (11) is used for controlling initial water inlet of the wash trough (3) and bait mixed liquid after the completion of the wash trough (4), the temporary discharge trough (4) is arranged in the wash trough (3) through oscillation, the temporary discharge trough (4) is arranged between the temporary discharge trough (3) and the temporary discharge trough (4) is connected with the stirring device (42) through the stirring device (42), and the feeding pipeline (12) is also provided with a pressurizing pump valve (41) for spraying baits and a shower nozzle (51) positioned at the tail end of the feeding pipeline (12), the net frame (31) is in a barrel shape and is divided into three layers, the outermost layer is a frame body (313) for supporting the whole outline of the net frame (31), the inner layer is a net bag (312) for containing baits thrown by a storage bin (2), a material washing mechanism (311) is arranged between the frame body (313) and the net bag (312), an annular sliding rail (3131) is arranged on the inner wall of the frame body (313), the material washing mechanism (311) comprises a material washing assembly body (3111) and a driving unit (3112), the side surface of the material washing mechanism (311) is provided with a sliding block protrusion (3113), the sliding block protrusion (3113) is correspondingly arranged with the sliding rail (3131), the driving unit (3112) of the material washing mechanism (311) is a servo motor fixedly arranged relative to the frame body (313), a main shaft tooth of the material washing mechanism is connected with the material washing assembly body (3111), the material washing mechanism (311) is arranged on the rotary shaft of the material washing mechanism (3111) along the rotary shaft (3117) of the rotary shaft (3117) relative to the rotary shaft (3117) of the rotary shaft (3117), the automatic feeding device is made of PVC anti-corrosion materials, the valves (11) are all arranged to be unidirectional circulation electromagnetic valves, the oscillation devices (32) are ultrasonic oscillators, the bottoms of the washing tanks (3) which are fixedly arranged under the net frame (31) are electrically connected with a central control system, the pressurizing pump valves (41) are controlled by the central control system to be started after receiving commands of the baits, the mixed liquid in the temporary discharging tanks (4) is sucked and is conveyed to the ends of the shower nozzles (51) to be sprayed out, and the feeding pipelines (12) are also provided with the mixed liquid in the reverse direction of the pressurizing pump valves (41) which are connected with the central control system.
2. The method for operating an automatic feeding device for prawn fingerling cultivation according to claim 1, comprising the steps of:
s1: pre-preparing shrimp larva bait mixed into slices, and placing the shrimp larva bait into a bait bin (2);
s2: starting an automatic feeding device, and presetting automatic feeding parameters including timing and quantitative parameters in a central control system by staff;
s3: after the automatic feeding is started, the central control system sends a command to the flow valve (21) and opens the outlet of the bait bin (2), and quantitatively feeds the shrimp larvae bait to the net frame (31) of the trough (3);
s4: when bait is put in, the central control system controls the valve (11) of the water inlet pipe (33) to be opened, mixed water is injected into the trough (3), and the quantity of the mixed water correspondingly changes with the bait quantity of the shrimp larvae;
s5: after the water and the shrimp larva baits are completely put in, a central control system controls a material washing mechanism (311) and an oscillating device (32) of a net frame (31) of a material washing groove (3), and the shrimp larva baits in the net frame (31) are uniformly mixed with the water by combining mechanically rolling baits and the oscillating device (32) based on an ultrasonic oscillator, so that powdery or flaky shrimp larva baits are better dissolved in the water;
s6: in the material washing process, the valves (11) of the water inlet pipe (33) and the water outlet pipe (34) are kept closed, and the circulating water pump (35) is opened, so that water mixed with shrimp larvae baits in the material washing tank (3) is continuously circulated in the material washing tank, and the water is better mixed;
s7: the central control system controls the oscillating device (32) to stop working at regular time, and opens a valve (11) at the end of the water outlet pipe (34), the bait mixed liquid in the washing tank (3) is led into the temporary discharging tank (4), and a stirring device (42) in the temporary discharging tank (4) is opened;
s8: after all the bait mixed liquid in the washing tank (3) is led out, the central control system starts washing or sprinkling again according to the setting selection;
s9: the central control system opens the pressurizing pump valve (41) for sprinkling at regular time, the flow control valve (13) opens the bait mixed liquid to flow out along the feeding pipeline (12) of the temporary discharging groove (4), and the sprinkling is uniformly carried out through the sprinkling heads (51) arranged in each cultivating pond (5).
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