Shallow silo capable of realizing pesticide application and fumigation of bottom conical hopper

Abstract

The utility model relates to a squat silo capable of realizing pesticide application and fumigation of a conical hopper at the bottom, which comprises a barrel body, the conical hopper with a large upper part and a small lower part is arranged at the bottom of the barrel body, a discharge port is arranged at the bottom of the conical hopper, a discharge port valve capable of being opened and closed is arranged at the discharge port, and the squat silo further comprises a fumigation pipe vertically arranged in an inner cavity of the conical hopper. A fumigating gas outlet is formed in the pipe wall of the fumigating pipe, the fumigating pipe is fixed to the inner wall of the barrel squat silo through a connecting frame, a working cavity used for feeding an aluminum phosphide medicament or introducing fumigating gas is formed in the discharging port valve, and a fumigating pipe gas inlet is formed in the bottom of the fumigating pipe; a working cavity air outlet which is communicated with the working cavity and is used for being communicated with the fumigation pipe air inlet when the discharge port valve is in a closed state is formed in the discharge port valve. According to the squat silo capable of achieving pesticide application and fumigation of the conical hopper at the bottom, the concentration of fumigation gas in the conical hopper can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain storage, in particular to a shallow round silo capable of implementing fumigation by spraying pesticides in a cone bucket at the bottom. Background Art

[0002] Shallow silo, also known as short silo, is a cylindrical ground silo with a height to diameter ratio of less than 1.5. It occupies an important position in bulk grain storage operations.

[0003] Existing shallow silos consist of a vertically arranged cylinder with a tapered bucket at the bottom that is larger at the top and smaller at the bottom. A grain outlet is located at the bottom of the bucket, and a valve that can be opened and closed is installed at the outlet. During use, bulk grain is stored in the silo. To unload the bulk grain, the valve is opened, and the grain flows out through the outlet under its own weight.

[0004] The problem with the existing technology is that in order to avoid pest damage during the storage of bulk grain, fumigant gas needs to be used to fumigate the bulk grain in the shallow silo. However, since the current cone hopper is several meters high and the grain outlet at the bottom is prone to air leakage, it is difficult for the fumigant gas to reach the cone hopper when fumigating the grain surface, or the fumigant gas in the cone hopper is difficult to reach an effective insecticidal concentration, making it difficult to kill the pests in the cone hopper. Utility Model Content

[0005] The utility model aims to provide a shallow silo capable of implementing fumigation by applying medicine through a cone bucket at the bottom, so as to increase the fumigation gas concentration in the cone bucket during fumigation.

[0006] In order to solve the above technical problems, the utility model provides a technical solution for a shallow silo capable of fumigating pesticides with a bottom cone bucket as follows:

[0007] A shallow circular silo capable of fumigating by applying pesticides through a cone bucket at the bottom comprises a cylinder body, a cone bucket which is larger at the top and smaller at the bottom is provided at the bottom of the cylinder body, a discharge port is provided at the bottom of the cone bucket, and a discharge port valve which can be opened and closed is provided at the discharge port, the shallow circular silo also comprises a fumigation tube vertically arranged in the inner cavity of the cone bucket, a fumigation gas outlet is provided on the tube wall of the fumigation tube, the fumigation tube is fixed to the inner wall of the cylinder shallow circular silo through a connecting frame, a working cavity for adding aluminum phosphide agent or introducing fumigation gas is provided in the discharge port valve, a fumigation tube air inlet is provided at the bottom of the fumigation tube, and a working cavity air outlet is provided on the discharge port valve for communicating with the fumigation tube air inlet when the discharge port valve is in a closed state.

[0008] Furthermore, each fumigation gas outlet is provided with a first filter for preventing loose grain from entering the fumigation tube.

[0009] Furthermore, a second filter is provided at the air outlet of the working chamber to prevent loose grain from entering the working chamber.

[0010] Furthermore, the connecting frame includes an upper connecting frame and a lower connecting frame. The upper connecting frame and the lower connecting frame each include a plurality of connecting strips spaced apart along the circumferential direction, and a grain dropping channel is formed between two adjacent connecting strips in the circumferential direction.

[0011] Furthermore, the upper connecting frame and the lower connecting frame also include an inner connecting tube and an outer connecting tube, the connecting strip is connected between the inner connecting tube and the outer connecting tube, the inner connecting tube is fixedly sleeved on the outer periphery of the fumigation tube, and the outer connecting tube is fixed on the inner wall of the shallow circular silo.

[0012] Furthermore, the discharge port valve is a horizontally opening gate valve or a split valve.

[0013] The beneficial effect of the utility model is that when it is necessary to fumigate and kill insects on the bulk grain in the shallow silo of the utility model, in addition to adopting the conventional grain surface fumigation scheme, aluminum phosphide agents can be added into the working chamber or fumigation gas can be introduced into the working chamber. The fumigation gas enters the fumigation tube through the working chamber air outlet and the fumigation tube air inlet, and then flows from top to bottom along the fumigation tube. During the flow process, it enters the bulk grain in the cone hopper along the fumigation gas outlet on the wall of the fumigation tube, thereby increasing the fumigation gas concentration in the cone hopper and ensuring the pest killing effect of the bulk grain in the cone hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an illustrative and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0015] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0016] Figure 2 yes Figure 1 A magnified view of point A in the figure;

[0017] Figure 3 yes Figure 1 Schematic diagram of the state when the middle discharge port valve is open;

[0018] Figure 4 yes Figure 1 Structural diagram of the middle and lower connecting frame;

[0019] Figure 5 This is a schematic diagram of the coordination between the discharge port valve and the fumigation tube in Example 2 of the present utility model;

[0020] 1. Cylinder; 2. Cone bucket; 3. Upper connecting frame; 4. Fumigation tube; 5. Lower connecting frame; 6. Discharge port valve; 7. Working chamber; 8. Valve pull rod; 9. Valve bracket; 10. Valve drive mechanism; 11. Inner connecting cylinder; 12. Connecting strip; 13. Fumigation gas outlet; 14. First filter; 15. Fumigation tube air inlet; 16. Working chamber air outlet; 17. Second filter; 18. Discharge port; 19. Grain drop channel; 20. Outer connecting cylinder; 21. Valve plate; 22. Tablet delivery port. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0022] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] The utility model is a shallow silo that can realize fumigation by spraying pesticides in a cone bucket at the bottom. Figures 1 to 4 As shown:

[0024] It includes a cylinder 1 with an axis extending in the up and down directions, and a cone bucket 2 with a larger upper part and a smaller lower part is provided at the bottom of the cylinder 1. In this embodiment, there are multiple cone buckets 2, and a discharge port 18 is provided at the bottom of the cone bucket. A discharge port valve 6 that can be opened and closed is provided at the discharge port 18. The cylinder and the cone bucket are usually concrete structures, and the discharge port is at a certain height from the ground.

[0025] In this embodiment, the discharge port valve is a horizontally opening gate valve, which belongs to the existing technology and includes a valve bracket 9. The valve bracket 9 is provided with a valve drive mechanism 10 and a valve plate that can move left and right. The valve drive mechanism is connected to the valve plate through a valve pull rod 8. The valve drive mechanism 10 includes a motor and a nut driven by the motor. The nut is threadedly connected to the valve pull rod. The valve pull rod and the nut constitute a screw nut mechanism. When the nut rotates forward, the valve pull rod can move the valve plate to the right to open the discharge port 18. When the nut is reversed, the valve pull rod can move the valve plate to the left to close the discharge port.

[0026] The innovation of the present invention lies in that the valve plate is a hollow structure, the inner cavity of the valve plate constitutes a working cavity 7, the bottom of the valve plate is provided with a medicine delivery port communicating with the working cavity, and the medicine delivery port is provided with a delivery port valve that can be opened and closed.

[0027] The shallow silo also includes a fumigation tube 4 vertically positioned within the conical hopper cavity. The tube 4 is coaxially arranged with the corresponding conical hopper. Fumigation gas outlets 13 are evenly distributed along the tube wall of the tube. The fumigation tube is secured to the inner wall of the cylindrical shallow silo via a connecting bracket. An air inlet 15 is located at the bottom of the fumigation tube. A working chamber air outlet 16 is located at the upper end of the valve plate of the discharge valve, communicating with the working chamber and the fumigation tube air inlet when the discharge valve is closed.

[0028] A first filter 14 is provided at each fumigation gas outlet to prevent bulk grain from entering the fumigation tube; a second filter 17 is provided at the gas outlet of the working chamber to prevent bulk grain from entering the working chamber.

[0029] The connecting frame includes an upper connecting frame 3 and a lower connecting frame 5. Both the upper connecting frame 3 and the lower connecting frame 5 include a plurality of connecting bars 12 spaced circumferentially, with grain drop channels 19 formed between adjacent connecting bars. The upper connecting frame 3 and the lower connecting frame 5 also include an inner connecting tube 11 and an outer connecting tube 20. The connecting bars 12 connect between the inner connecting tube 11 and the outer connecting tube 20. The inner connecting tube is fixedly sleeved on the outer circumference of the fumigation tube, and the outer connecting tube is fixed to the inner wall of the shallow silo. In this embodiment, the outer connecting tube of the upper connecting frame is fixed to the bottom inner wall of the cylinder; the outer connecting tube of the lower connecting frame is fixed to the bottom inner wall of the cone bucket.

[0030] When the outlet valve is in the closed state, Figures 1 and 2 As shown, the working chamber outlet and the fumigation pipe inlet remain connected. When fumigating bulk grain in the shallow silo, in addition to conventional grain surface fumigation, aluminum phosphide tablets can be placed into the working chamber. The aluminum phosphide tablets undergo deliquesce to release phosphine fumigant gas. The phosphine fumigant gas enters the fumigation pipe through the working chamber outlet and the fumigation pipe inlet. It then flows into the surrounding bulk grain through the fumigation gas outlet on the fumigation pipe wall, thereby increasing the fumigant gas concentration in the cone hopper and ensuring pest control within the cone hopper. When the bulk grain needs to be discharged from the silo, the valve plate pull rod moves the valve plate to the left to open the discharge valve.

[0031] In other embodiments of the present invention, when fumigation is required in a shallow silo, phosphine fumigation gas may not be generated by adding aluminum phosphide tablets into the working chamber. For example, phosphine fumigation gas may be directly introduced into the working chamber.

[0032] A shallow silo capable of fumigating with a bottom cone bucket is shown in Example 2. Figure 5 As shown: Example 2 is different from Example 1 in that, in this embodiment, the discharge port valve 6 is a split valve, which includes two valve plates 6 that close the discharge port when flipped relative to each other and open the discharge port when flipped back and forth. The flipping action of the valve plate can be driven by a motor. The split valve also belongs to the existing technology, and its specific structure will not be described in detail.

[0033] In this embodiment, there are two working chambers 7, each located within a corresponding valve plate. Each valve plate has a working chamber air outlet 16 at its upper end. When the two valve plates are tilted relative to each other to close the discharge port, the working chamber air outlets on the two valve plates communicate with the fumigation tube air inlet at the bottom of the fumigation tube 4. Item 22 in the figure represents the tablet delivery port.

[0034] In the above description of this specification, unless otherwise expressly specified or limited, terms such as "fixed," "mounted," "connected," or "connected" should be understood broadly. For example, the term "connected" can refer to a fixed connection, a removable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal connection between two components or the interaction between two components. Therefore, unless otherwise expressly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0036] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly specified.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A shallow silo capable of fumigating pesticides with a bottom cone bucket, comprising a cylinder, a cone bucket with a larger upper portion and a smaller lower portion provided at the bottom of the cylinder, a discharge port provided at the bottom of the cone bucket, and a discharge port valve that can be opened and closed, characterized in that: The shallow silo also includes a fumigation pipe vertically arranged in the inner cavity of the cone bucket, a fumigation gas outlet is provided on the tube wall of the fumigation pipe, the fumigation pipe is fixed to the inner wall of the cylindrical shallow silo through a connecting frame, a working chamber for adding aluminum phosphide agent or introducing fumigation gas is provided in the discharge port valve, a fumigation pipe air inlet is provided at the bottom of the fumigation pipe, and a working chamber air outlet is provided on the discharge port valve for communicating with the working chamber and the fumigation pipe air inlet when the discharge port valve is closed.

2. The shallow silo according to claim 1, characterized in that: Each fumigation gas outlet is provided with a first filter screen for preventing loose grain from entering the fumigation tube.

3. The shallow silo according to claim 1, characterized in that: A second filter screen is provided at the air outlet of the working chamber to prevent loose grain from entering the working chamber.

4. The shallow silo according to claim 1, characterized in that: The connecting frame includes an upper connecting frame and a lower connecting frame. The upper connecting frame and the lower connecting frame each include a plurality of connecting strips spaced apart along the circumferential direction, and a grain dropping channel is formed between two adjacent connecting strips in the circumferential direction.

5. The shallow silo according to claim 4, characterized in that: The upper connecting frame and the lower connecting frame also include an inner connecting tube and an outer connecting tube. The connecting strip is connected between the inner connecting tube and the outer connecting tube. The inner connecting tube is fixedly sleeved on the outer periphery of the fumigation tube, and the outer connecting tube is fixed on the inner wall of the shallow silo.

6. The shallow silo according to any one of claims 1 to 5, characterized in that: The discharge port valve is a horizontally opening gate valve or a split valve.

Images