Pneumatic conveying type fish feed feeding device

Abstract

The invention discloses an air-assisted fish feed feeding device which comprises a variable-frequency vector fan, a supercritical conveying loop and a plurality of feeding units. The method is specially developed for modern factory-like circulating water culture working conditions; the device adopts a full-pneumatic topological design, a modularized non-mechanical transmission framework is innovatively realized, and the electromechanical fault chronic problem of traditional equipment is solved in a breakthrough manner; the device has a multi-mode spraying function, a dynamic water spray effect can be generated, the behavior induction requirements of visual feeding fishes such as micropterus salmoides can be accurately met, the feeding range can be adjusted according to the size of the pond body, and the phenomenon that the water spray is sprayed out of the pond cannot occur; the material storage cavity is of a bionic hyperboloid flow guide structure, and gravity self-flowing and pneumatic auxiliary discharging technologies are combined. A discharging pipe of the feeding device is provided with a multi-stage precise control scale valve system, and 0.5 mm level feeding amount fine adjustment is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture, and specifically relates to an air-supply type fish feed feeding device. Background Art

[0002] Traditional feeding equipment generally has an independent power system structure; whether it is mechanical or air-supply type, an independent motor needs to be equipped, and a vibrating disk or a scraper needs to be configured at the feeding port to reduce the problem of feed blockage caused by the arching effect. Due to the humid and harsh working environment, frequent electrical and mechanical failures affect production. In addition, the common feeding at present is mainly used for pond aquaculture, and the spraying range is difficult to adapt to the compact layout requirements of modern industrial aquaculture ponds.

[0003] Therefore, an air-supply type fish feed feeding device is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide an air-supply type fish feed feeding device to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: an air-supply type fish feed feeding device, including a variable frequency vector fan, a supercritical conveying loop, and a plurality of feeding units;

[0006] The feeding units are fixedly installed through a gantry truss. The feeding unit includes a storage cavity for storing and mixing materials. The bottom of the storage cavity is a lower conical shape. The bottom of the storage cavity is connected to the feeding end of the feeding device discharge pipe. The diameter of the feeding device discharge pipe is more than 6 times the maximum material diameter. The feeding device discharge pipe is provided with a pull-out gate valve. A scale line is provided on the valve pull rod of the pull-out gate valve. The minimum unit of the scale line is 0.5 mm. When the pull-out gate valve is partially opened, the discharge channel of the feeding device discharge pipe is in an elliptical state, and when it is fully opened, the discharge channel of the feeding device discharge pipe is in a circular shape;

[0007] The supercritical conveying loop includes a T-shaped topological pipeline and a pneumatic topological pipe;

[0008] The T-shaped topological pipeline and the pneumatic topological pipe are respectively provided with a T-shaped topological pipeline regulating valve and a pneumatic topological pipe regulating valve;

[0009] The discharge end of the feeding device discharge pipe is communicated with the T-shaped topological pipeline. One end of the T-shaped topological pipeline is a feed spraying port, and the other end of the T-shaped topological pipeline is connected to the air outlet of the variable frequency vector fan through a connecting pipe;

[0010] The air inlet nozzle of the pneumatic topological tube is connected to one end of the T-shaped topological pipeline away from the feed injection port. The air outlet nozzle of the pneumatic topological tube extends into the discharge pipe of the feeding device, and the air outlet nozzle is arranged below the gate of the draw valve and obliquely upward towards the opening point of the gate of the draw valve.

[0011] According to the above technical solution, the variable frequency vector fan uses the PID algorithm to achieve stepless range adjustment from 1 to 12 meters.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention provides an air-assisted fish feed feeding device, which is specially developed for the modern factory recirculating aquaculture working conditions; the device adopts a fully pneumatic topological design, innovatively realizes a modular mechanical transmission-free structure, and breakthroughly solves the chronic problems of mechanical and electrical failures of traditional equipment; the device has a multi-modal spraying function, can generate a dynamic water splash effect, accurately meets the behavioral induction needs of visually feeding fish such as largemouth bass, and the feeding range can be adjusted according to the size of the pond, and there will be no phenomenon of spraying out of the pond.

[0013] The storage cavity adopts a bionic hyperbolic diversion structure, integrating gravity self-flow and pneumatic-assisted feeding technologies; the discharge pipe of the feeding device is equipped with a multi-stage precision control scale valve system to achieve fine adjustment of the feeding amount at the 0.5mm level. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0015] Figure 1 is the overall structural schematic diagram of the present invention;

[0016] Figure 2 is the cross-sectional structural schematic diagram of the feeding unit of the present invention;

[0017] Figure 3 is the top view structural schematic diagram of the storage cavity of the present invention;

[0018] In the figure: 1. Variable frequency vector fan; 2. Feeding unit; 3. Gantry truss; 4. Storage cavity; 5. Discharge pipe of the feeding device; 6. Draw valve; 7. Valve pull rod; 8. Scale line; 9. T-shaped topological pipeline; 10. Pneumatic topological tube; 11. T-shaped topological pipeline regulating valve; 12. Pneumatic topological tube regulating valve; 13. Feed injection port; 14. Connecting pipe; 15. Air inlet nozzle; 16. Air outlet nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-3 , the present invention provides a technical solution: an air-supply type fish feed feeding device, which includes a variable frequency vector fan 1, a supercritical conveying loop, and multiple feeding units 2; the variable frequency vector fan 1 can design an automatic start-stop control system according to the feeding period, and cooperate with the pull-out gate valve 6 to accurately open to realize the intelligent management of feeding;

[0021] The feeding unit 2 is fixedly installed through a gantry truss 3, and adopts a unitized distributed layout. The three-dimensional coordinate positioning of the feeding site is realized through the gantry truss 3. The feeding unit 2 includes a storage cavity 4 for storing and mixing materials. The storage cavity 4 adopts a bionic hyperbolic diversion structure, integrating gravity self-flow and pneumatic-assisted feeding technologies. The bottom of the storage cavity 4 is a lower conical shape. The bottom of the storage cavity 4 is connected to the feed end of the feeding device discharge pipe 5. The diameter of the feeding device discharge pipe 5 is more than 6 times the maximum material diameter, so as to avoid the arching effect. The feeding device discharge pipe 5 is provided with a pull-out gate valve 6. To further accurately control the feeding, a scale line 8 is provided on the valve pull rod 7 of the pull-out gate valve 6. The minimum unit of the scale line 8 is 0.5 mm, and a stepping motor and an automatic control system can be installed to realize intelligent and unified management. When the pull-out gate valve 6 is partially opened, the discharge channel of the feeding device discharge pipe 5 is in an elliptical state, and when it is fully opened, the discharge channel of the feeding device discharge pipe 5 is in a circular state, effectively reducing the intensity of the arching effect, and controlling the material flow by controlling the opening degree of the gate of the pull-out gate valve 6;

[0022] The supercritical conveying loop includes a T-shaped topological pipeline 9 and a pneumatic topological pipe 10. The gas-solid two-phase flow conveying system innovatively adopts the accelerating effect of multiple Venturi tubes;

[0023] A T-shaped topological pipeline regulating valve 11 and a pneumatic topological pipe regulating valve 12 are respectively arranged on the T-shaped topological pipeline 9 and the pneumatic topological pipe 10;

[0024] The discharge end of the feeding device discharge pipe 5 is communicated with the T-shaped topological pipeline 9. One end of the T-shaped topological pipeline 9 is a feed injection port 13, and the other end of the T-shaped topological pipeline 9 is connected to the air outlet of the variable frequency vector fan 1 through a connecting pipe 14;

[0025] The air inlet nozzle 15 of the pneumatic topology tube 10 is connected to one end of the T-shaped topology pipeline 9 away from the feed injection port 13. The air outlet nozzle 16 of the pneumatic topology tube 10 extends into the internal part of the discharge pipe 5 of the feeding device, and the air outlet nozzle 16 is arranged below the gate of the draw valve 6 and obliquely upward towards the opening point of the gate of the draw valve 6. The three-dimensional spiral flow field is effectively formed through the upward airflow to disintegrate the feed arching effect, eliminate the hidden danger of material arching from the essence of fluid mechanics, and the reliability is increased by 8 times compared with the mechanical anti-blocking device.

[0026] Furthermore, the variable-frequency vector fan 1 uses the PID algorithm to achieve stepless range adjustment from 1 to 12 meters, forming a quasi-uniform suspension flow state in the storage chamber 4, controlling the feed breakage rate below 0.3%, and realizing the directional ballistic transportation of sub-millimeter-sized particles.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wind-fed fish feed feeding device, characterized in that: It includes a variable-frequency vector fan, a supercritical conveying loop, and multiple feeding units; The feeding units are fixedly installed through a gantry truss. The feeding unit includes a storage cavity for storing and mixing materials. The bottom of the storage cavity is in a lower conical shape. The bottom of the storage cavity is connected to the feeding end of the discharge pipe of the feeding device. The diameter of the discharge pipe of the feeding device is more than 6 times the maximum diameter of the materials. The discharge pipe of the feeding device is provided with a sliding gate valve. A scale line is provided on the valve pull rod of the sliding gate valve. The minimum unit of the scale line is 0.5 mm. When the sliding gate valve is partially opened, the discharge channel of the discharge pipe of the feeding device is in an elliptical state, and when it is fully opened, the discharge channel of the discharge pipe of the feeding device is in a circular state; The supercritical conveying loop includes a T-shaped topological pipeline and a pneumatic topological pipe; A T-shaped topological pipeline regulating valve and a pneumatic topological pipe regulating valve are respectively arranged on the T-shaped topological pipeline and the pneumatic topological pipe; The discharge end of the discharge pipe of the feeding device is communicated with the T-shaped topological pipeline. One end of the T-shaped topological pipeline is a feed injection port, and the other end of the T-shaped topological pipeline is connected to the air outlet of the variable-frequency vector fan through a connecting pipe; The air inlet nozzle of the pneumatic topological pipe is communicated with one end of the T-shaped topological pipeline far from the feed injection port. The air outlet nozzle of the pneumatic topological pipe extends into the discharge pipe of the feeding device, and the air outlet nozzle is arranged below the gate of the sliding gate valve and obliquely upward towards the opening point of the gate of the sliding gate valve; 2. The pneumatic fish feed feeding device according to claim 1, characterized in that: The variable-frequency vector fan uses a PID algorithm to achieve stepless range adjustment from 1 to 12 meters.

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