Grain storage barrel of grain dryer

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a grain storage barrel of a grain dryer. A grain storage barrel of a grain dryer comprises a grain inlet layer, a bottom layer, a grain storage layer and a buffer layer. The grain inlet layer, the grain storage layer, the buffer layer and the bottom layer are sequentially arranged from top to bottom; a conical grain receiving hopper is coaxially arranged in the grain feeding layer, and a conical buffer funnel is coaxially arranged in the buffer layer; and the tip diameter of the buffer funnel is smaller than that of the grain receiving hopper. According to the invention, the crushing probability of grains is reduced; meanwhile, the risk of grain retention is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and more particularly, to a grain storage cylinder of a grain dryer. Background Art

[0002] During the process of the grain entering the dryer and circulating for drying, due to the need for cyclic grain feeding, it is necessary to continuously let the grain fall from the high center of the grain storage cylinder. Since the upper part of the inner cylinder at the bottom of the grain storage cylinder is a metal upper cone, an impact force is generated here, resulting in grain breakage or peeling (hulling).

[0003] Therefore, how to avoid or reduce grain breakage during the two processes of grain feeding and circulation has become a technical problem that needs to be solved urgently in the prior art. Summary of the Invention

[0004] The purpose of the present invention is to provide a grain storage cylinder of a grain dryer, which can effectively reduce the impact force when the grain falls and reduce the probability of grain breakage.

[0005] The present invention provides a grain storage cylinder of a grain dryer, which includes a grain feeding layer, a bottom layer, a grain storage layer, and a buffer layer; The grain feeding layer, the grain storage layer, the buffer layer, and the bottom layer are arranged in sequence from top to bottom; A conical grain receiving hopper is coaxially arranged in the grain feeding layer, and a conical buffer funnel is coaxially arranged in the buffer layer; The tip diameter of the buffer funnel is smaller than the tip diameter of the grain receiving hopper.

[0006] In a preferred embodiment, the grain storage layer and the buffer layer form a grain storage buffer unit; The number of the grain storage buffer units is multiple, and the multiple grain storage buffer units are arranged vertically in sequence.

[0007] In a preferred embodiment, the upper end opening diameter of the buffer funnel in the lower buffer layer is larger than the upper end opening of the buffer funnel in the upper buffer layer.

[0008] In a preferred embodiment, connection flanges are arranged at both ends of the grain storage layer and the buffer layer.

[0009] In a preferred embodiment, reinforcing ribs are arranged on the side wall of the buffer layer.

[0010] In a preferred embodiment, the grain receiving hopper is connected to the inner wall of the grain feeding layer through a first rib plate.

[0011] In a preferred embodiment, the buffer funnel is connected to the inner wall of the buffer layer through a second rib plate.

[0012] In a preferred embodiment, the grain storage layer includes a plurality of arc-shaped outer cylinder single pieces; The plurality of outer cylinder single pieces are spliced to form a cylindrical shape.

[0013] In a preferred embodiment, an inner cylinder is coaxially arranged inside the bottom layer; The upper end of the inner cylinder is a conical tip.

[0014] In a preferred embodiment, the grain leakage speed of the grain receiving hopper is greater than the grain leakage speed of the tip of the buffer hopper.

[0015] The beneficial effects of the present invention are: The falling grain from the grain inlet hopper is received by the buffer hopper. The lower grain outlet of the grain receiving hopper is relatively large, and all the grain can flow out from the outlet. The outlet of the buffer hopper is relatively small, and only a small part of the grain flows out. Most of the grain overflows from the upper opening of the buffer hopper after the buffer hopper is filled with grain. At this time, the falling grain from above only impacts the grain in the buffer hopper, and does not directly impact the inner wall of the buffer hopper or the grain storage cylinder of the grain dryer, reducing the impact force and the probability of grain breakage. At the same time, during the process of emptying the grain in the grain storage cylinder, the grain in the buffer hopper is always in a flowing state, avoiding the risk of grain retention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 It is the front view of the grain storage cylinder of the grain dryer provided by the embodiment of the present invention; Figure 2 It is the three-dimensional structure diagram of the grain storage cylinder of the grain dryer provided by the embodiment of the present invention; Figure 3 It is the three-dimensional structure diagram of the grain inlet layer of the grain storage cylinder of the grain dryer provided by the embodiment of the present invention; Figure 4 It is the three-dimensional structure diagram of the grain storage layer of the grain storage cylinder of the grain dryer provided by the embodiment of the present invention; Figure 5 It is the three-dimensional structure diagram of the outer cylinder single piece of the grain storage cylinder of the grain dryer provided by the embodiment of the present invention; Figure 6 It is the three-dimensional structure diagram of the buffer layer of the grain storage cylinder of the grain dryer provided by the embodiment of the present invention; Figure 7Schematic diagram of the three-dimensional structure of the bottom layer of the grain storage cylinder of the grain dryer provided by the embodiment of the present invention.

[0018] Icon: 1 - feeding layer; 2 - grain receiving hopper; 3 - grain storage layer; 4 - buffer layer; 5 - buffer funnel; 6 - bottom layer; 7 - inner cylinder; 8 - first rib plate; 9 - reinforcing rib; 10 - connecting flange; 11 - vertical flange; 12 - single piece of outer cylinder; 13 - second rib plate. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0021] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0023] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following Figures 1-7 will describe in detail some embodiments of the present invention. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0026] The present invention provides a grain storage cylinder for a grain dryer, as Figure 1 and Figure 2 shown, which includes a grain inlet layer 1, a bottom layer 6, a grain storage layer 3, and a buffer layer 4; the grain inlet layer 1, the grain storage layer 3, the buffer layer 4, and the bottom layer 6 are arranged in sequence from top to bottom; a conical grain receiving hopper 2 is coaxially arranged in the grain inlet layer 1, and a conical buffer hopper 5 is coaxially arranged in the buffer layer 4; the tip diameter of the buffer hopper 5 is smaller than the tip diameter of the grain receiving hopper 2.

[0027] In this embodiment, the grain storage cylinder of the grain dryer is located at the top of the dryer and is a cylindrical hollow metal thin-walled outer cylinder.

[0028] In this embodiment, the grain storage cylinder of the grain dryer is hierarchically arranged. The grain inlet layer 1 is located at the top of the grain storage cylinder of the grain dryer, and the grain enters through the conical grain receiving hopper 2 in the middle of the grain inlet layer 1 from a high place. A relatively large grain outlet round hole is opened at the bottom end of the conical grain receiving hopper 2, and the function of the grain receiving hopper 2 is to concentrate the grain and flow it out from the middle.

[0029] Below the grain inlet layer 1 is a single-layer grain storage layer 3, and below the grain storage layer 3 is a buffer layer 4. The buffer layer 4 has a conical buffer hopper 5, and the buffer hopper 5 is a cone structure with a small grain outlet at the lower end.

[0030] In this embodiment, the grain receiving hopper 2 and the buffer hopper 5 are similar in shape but different in size. The lower grain outlet of the grain receiving hopper 2 is relatively large, and all the grain can flow out from the grain outlet; the grain outlet of the buffer hopper 5 is relatively small, and only a small part of the grain flows out. Most of the grain overflows from the upper mouth of the buffer hopper 5 after the buffer hopper 5 is filled with grain. And during the process of emptying the grain in the storage cylinder, the grain in the buffer hopper 5 is always in a flowing state, avoiding the risk of grain retention. The buffer hoppers 5 in the multi-layer buffer layer 4 are also slightly larger in the lower layer than in the upper layer to ensure that the lower buffer hopper 5 can receive the grain overflowing from the upper buffer hopper 5, forming a hierarchical relationship where the lower layer catches the grain from the upper layer.

[0031] In a preferred embodiment, the grain storage layer 3 and the buffer layer 4 constitute a grain storage buffer unit; there are multiple grain storage buffer units, and the multiple grain storage buffer units are vertically arranged in sequence.

[0032] In this embodiment, the grain storage cylinder as a whole is composed of grain feeding layer 1 → grain storage buffer unit (grain storage layer 3 → buffer layer 4) → grain storage buffer unit (grain storage layer 3 → buffer layer 4) → ... → buffer layer 4 → bottom layer 6, etc., forming an overall multi-layer combined structure.

[0033] Specifically, in the present embodiment, the number of layers of the grain storage barrel can be increased or decreased as required, and the number of layers of the buffer layer 4 can also be increased or decreased as required according to the height of the grain storage barrel to ensure the buffering effect.

[0034] Through the process of falling and buffering, the grains finally fall into and fill the bottom layer 6, and gradually fill the entire grain storage cylinder, effectively avoiding the problem of grains being broken due to impact during the grain feeding and circulation process.

[0035] In a preferred embodiment, the diameter of the upper opening of the buffer funnel 5 in the lower buffer layer 4 is larger than the diameter of the upper opening of the buffer funnel in the upper buffer layer 4 .

[0036] In this embodiment, in adjacent buffer layers 4 , the upper end opening of the lower buffer funnel 5 is larger than the upper end opening of the upper buffer funnel 5 , ensuring that the grain overflowing from the upper buffer funnel 5 or the receiving layer can fall into the lower buffer funnel 5 .

[0037] When the upper buffer funnel 5 begins to overflow from the upper end, it can be caught by the lower buffer funnel 5 and enter the lower buffer funnel 5. When the lower buffer funnel 5 is also full, the lower buffer funnel 5 overflows from the upper edge and falls to the lower buffer funnel 5 or the bottom layer 6.

[0038] This design ensures that the lower buffer funnel 5 can completely receive the grain overflowing from the upper buffer funnel 5, forming a hierarchical buffer structure, thereby preventing the grain from being broken due to the inability to be effectively received during the falling process.

[0039] In a preferred embodiment, connecting flanges 10 are provided at both ends of the grain storage layer 3 and the buffer layer 4 .

[0040] In this embodiment, the grain storage layer 3 and the buffer layer 4 are formed into a module by setting the connecting flange 10, so that each layer of the grain storage barrel can be conveniently assembled in a modular manner. By connecting the flange 10, the number of grain storage layers 3 and buffer layers 4 can be quickly increased or decreased according to actual needs, and the capacity and buffer effect of the grain storage barrel can be flexibly adjusted.

[0041] Meanwhile, the design of the connecting flange 10 also enhances the overall structural stability of the grain storage cylinder. During the assembly process, the connecting flange 10 can ensure the tight connection between layers, preventing the structure from loosening due to the impact or vibration of the grain.

[0042] Furthermore, the modular design makes the maintenance and replacement of the grain storage cylinder more convenient. If a certain layer is damaged or needs to be upgraded, it can be replaced individually without disassembling and reassembling the entire grain storage cylinder.

[0043] It can be understood that in this embodiment, the connection methods at both ends of the grain storage layer 3 and the buffer layer 4 are both the connecting flange 10, but it is not limited to only this one method of the connecting flange 10. It can also be other detachable connection methods, such as snap connection, pin connection, etc., as long as it can ensure the installation stability of the grain storage layer 3 and the buffer layer 4.

[0044] In a preferred embodiment, reinforcing ribs 9 are provided on the side wall of the buffer layer 4.

[0045] In this embodiment, the height of the buffer layer 4 is lower than that of the grain storage layer 3. After the reinforcing ribs 9 are provided on the side wall of the buffer layer 4, the structural strength and stability of the buffer layer 4 can be significantly enhanced.

[0046] During the falling process of the grain, the buffer layer 4 needs to bear a large impact force. The reinforcing ribs 9 can effectively disperse these impact forces, preventing the buffer layer 4 from deforming or being damaged due to excessive local stress.

[0047] By enhancing the structural strength of the buffer layer 4, the reinforcing ribs 9 can effectively extend the service life of the buffer layer 4, reduce the maintenance and replacement frequency caused by structural damage, and lower the maintenance cost of the equipment.

[0048] The design of the reinforcing ribs 9 can further optimize the buffering effect of the buffer layer 4. By reasonably distributing the position and quantity of the reinforcing ribs 9, it can ensure that the buffer layer 4 maintains good buffering performance when bearing the impact force, and further reduce the grain breakage rate.

[0049] Specifically, in this embodiment, the reinforcing ribs 9 are vertically arranged on the outer wall of the buffer layer 4, connecting the connecting flanges 10 at both ends of the buffer layer 4.

[0050] In a preferred embodiment, the grain receiving hopper is connected to the inner wall of the grain inlet layer 1 through the first rib plate 8.

[0051] In this embodiment, the grain receiving hopper 2 is fixedly connected to the inner wall of the grain inlet layer 1 in a uniformly radial manner by a plurality of first rib plates 8 around it. The connection method can be bolt fixed connection, welding, riveting, etc., as long as it can realize the fixed connection between the first rib plate 8 and the grain receiving hopper 2 and the inside of the grain inlet layer 1.

[0052] More specifically, in this embodiment, the first rib plates 8 are radially distributed, which can evenly disperse the impact force of the grain on the grain receiving hopper 2, preventing the grain receiving hopper 2 from deforming or being damaged due to excessive local stress.

[0053] In a preferred embodiment, the buffer funnel 5 is connected to the inner wall of the buffer layer 4 through the second rib plates 13.

[0054] In this embodiment, the buffer funnel 5 is arranged in the same way as the grain receiving hopper 2. Since the sizes of the buffer funnel 5 and the grain receiving hopper 2 are different, the parameters of the second rib plates 13 and the first rib plates 8 are not the same.

[0055] At the same time, the diameter parameters of the buffer funnels 5 in each buffer layer 4 are different, and the corresponding parameters such as the length of the second rib plates 13 will also change accordingly.

[0056] In a preferred embodiment, the grain storage layer 3 includes multiple arc-shaped outer cylinder single pieces 12; the multiple outer cylinder single pieces 12 are spliced to form a cylindrical shape.

[0057] In this embodiment, the grain storage layer 3 is composed of four or two outer cylinder single pieces 12, and the outer cylinder single pieces 12 can be connected and combined into a single-layer cylindrical grain storage layer 3 through vertical flanges.

[0058] At this time, the vertical flange 11 can play the role of the reinforcing rib 9, thereby increasing the bearing capacity of the grain storage layer 3, ensuring the safety of the grain storage layer 3 during grain storage, and improving the service life of the grain storage layer 3.

[0059] At the same time, in this embodiment, the grain storage layer 3 is arranged in a way that multiple arc-shaped outer cylinder single pieces 12 are spliced, which can make the grain storage layer 3 convenient for transportation, and when it is damaged, only the damaged part needs to be replaced, reducing the maintenance cost.

[0060] In a preferred embodiment, an inner cylinder 7 is coaxially arranged in the bottom layer 6; the upper end of the inner cylinder 7 is a conical tip.

[0061] In this embodiment, the conical tip at the upper end of the inner cylinder 7 can effectively guide the grain to smoothly enter the bottom layer 6, avoiding the accumulation or blockage of the grain at the entrance of the bottom layer 6. The conical tip can disperse the falling direction of the grain, making the grain evenly distributed in the bottom layer 6, which helps to improve the operating efficiency of the grain storage cylinder and avoid equipment failures caused by grain accumulation.

[0062] At the same time, the conical structure can better withstand the impact force of the grain, reducing the wear and damage of the bottom layer 6; the grain in the bottom layer 6 is easier to be cleaned and discharged, facilitating the maintenance and cleaning of the grain storage cylinder.

[0063] In a preferred embodiment, the grain leakage speed of the grain receiving hopper 2 is greater than the grain leakage speed at the tip of the buffer funnel 5.

[0064] In this embodiment, the aperture of the grain outlet hole at the bottom end of the grain receiving hopper is relatively large, ensuring that the grains have a relatively high flow rate when entering the grain storage layer 3, so that the grains can quickly flow out of the grain receiving hopper and enter the next layer of the grain storage layer 3.

[0065] The tip grain outlet of the buffer funnel 5 is relatively small, making the outflow rate of the grains relatively slow, ensuring that the grains have sufficient residence time in the buffer funnel 5, thus playing the role of a buffer pad in the buffer funnel 5. The grains falling from the upper layer fall on the piled grains in the buffer funnel 5, reducing the impact on the grains. As can be seen from the above, for the grain storage cylinder of the grain dryer provided by the present invention, according to the overall structure of the grain storage cylinder, after the grains are sent from an external device to the grain receiving hopper 2 of the grain inlet layer 1, the grains are gathered in the grain receiving hopper 2 and discharged from the outlet of the grain receiving hopper 2 in a concentrated manner and start to fall, entering the first grain storage layer 3. Since the grains have a certain falling speed and kinetic energy after falling a certain height, in order to reduce its falling speed and kinetic energy, a buffer layer 4 is provided on the next layer of the first grain storage layer 3. The grain receiving hopper 2 of the buffer layer 4 is used to reduce its falling speed, thereby reducing the impact force. As the grains flow, the grains in the buffer funnel 5 will flow out from the round hole at the bottom of the buffer funnel 5. Since the aperture at the lower end of the buffer funnel 5 is relatively small, most of the grains overflow through the upper edge of the buffer funnel 5 and flow into the second grain storage layer 3, and then fall through the second grain storage layer 3 into the next layer of the buffer layer 4. At this time, the grains falling from the feed hopper will fall on the grains in the buffer funnel 5, thus slowing down the impact force of the grains; as the grains are loaded, the surface of the grains gradually rises, and during the rising process, each layer of the buffer funnel 5 is gradually buried in the grain pile. For the grain receiving hopper 2 that has been buried, it no longer receives grains. At this time, the grains falling from above directly fall on the grain surface of the lower layer, thereby slowing down the impact force of the grains.

[0066] Through falling and buffering, after one or more buffering processes like this, the grains fall into and fill the bottom layer 6, and gradually fill the entire grain storage cylinder.

[0067] As can be seen from the above, the present invention breaks through the conventional link of grain breakage in grain dryers, finds another key link of grain breakage during the grain inlet and circulation processes due to the impact on the grains, that is, the grain storage cylinder of the dryer. The structure of the grain storage cylinder is layered, and each layer is improved to reduce or avoid the breakage problem during the grain inlet and drying circulation processes.

[0068] The beneficial effects of the present invention are: The falling grains from the grain inlet hopper are received through the buffer funnel 5. The lower outlet of the grain receiving hopper 2 is relatively large, and all the grains can flow out from the outlet. The outlet of the buffer funnel 5 is relatively small, and only a small part of the grains can flow out. Most of the grains overflow from the upper opening of the buffer funnel 5 after it is filled with grains. At this time, the grains falling from above will only impact the grains in the buffer funnel 5, and will not directly impact the inner wall of the buffer funnel 5 or the grain storage cylinder of the grain dryer, reducing the impact force and the probability of grain breakage. At the same time, during the process of emptying the grains in the storage cylinder, the grains in the buffer funnel 5 are always in a flowing state, avoiding the risk of grain retention.

[0069] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, 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 grain storage cylinder of a grain dryer, characterized in that It includes a grain inlet layer, a bottom layer, a grain storage layer and a buffer layer; The grain inlet layer, the grain storage layer, the buffer layer and the bottom layer are arranged in sequence from top to bottom; A conical grain receiving hopper is coaxially arranged in the grain inlet layer, and a conical buffer hopper is coaxially arranged in the buffer layer; The tip diameter of the buffer hopper is smaller than the tip diameter of the grain receiving hopper.

2. The grain storage cylinder of the grain dryer according to claim 1, characterized in that The grain storage layer and the buffer layer form a grain storage buffer unit; The number of the grain storage buffer units is multiple, and the multiple grain storage buffer units are arranged vertically in sequence.

3. The grain storage cylinder of the grain dryer according to claim 2, characterized in that, The upper end opening diameter of the buffer hopper in the lower buffer layer is larger than the upper end opening of the buffer hopper in the upper buffer layer.

4. The grain storage cylinder of the grain dryer according to claim 1, characterized in that, Connection flanges are arranged at both ends of the grain storage layer and the buffer layer.

5. The grain storage cylinder of the grain dryer according to claim 1, characterized in that Reinforcing ribs are arranged on the side wall of the buffer layer.

6. The grain storage cylinder of the grain dryer according to claim 1, characterized in that, The grain receiving hopper is connected to the inner wall of the grain inlet layer through a first rib plate.

7. The grain storage cylinder of the grain dryer according to claim 1, characterized in that, The buffer hopper is connected to the inner wall of the buffer layer through a second rib plate.

8. The grain storage cylinder of the grain dryer according to claim 1, characterized in that, The grain storage layer includes multiple arc-shaped outer cylinder single pieces; The multiple outer cylinder single pieces are spliced to form a cylinder.

9. The grain storage cylinder of the grain dryer according to claim 1, wherein An inner cylinder is coaxially arranged in the bottom layer; The upper end of the inner cylinder is a conical tip.

10. The grain storage cylinder of the grain dryer according to claim 9, characterized in that, The grain leakage speed of the grain receiving hopper is greater than the grain leakage speed at the tip of the buffer hopper.

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