Grain drying apparatus

Abstract

To provide a grain drying device which can be easily used and can be used for various kinds of grains.SOLUTION: A grain drying device 1 includes a fan connection part 20 for sucking air, a cylinder upper part 40 connected to the fan connection part 20 and through which air flows, and a cylinder lower part 60 connected to the cylinder upper part 40 on the opposite side of the fan connection part 20 and having a hole 64 formed in a side wall 62, wherein the cylinder upper part 40 and the cylinder lower part 60 are detachably connected.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a grain drying device for drying grain stored in storage bags or the like after harvesting. [Background technology]

[0002] Before being brought into a storage tank facility, harvested grain must be pre-dried to a moisture content below a specified level. For pre-drying, the grain is usually dried in a storage bag (such as a flexible container bag) or container. Patent Document 1 describes an apparatus used in the drying process of raw rice. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3028909 Summary of the Invention [Problem to be solved by the invention]

[0004] However, because the amount of moisture to be dried, the way the moisture evaporates, and the state of moisture retention after harvest vary for each grain, there is room for improvement in the drying process when using a dryer for rice husks to dry other grains. Furthermore, if the size of the holes formed in the tube that is immersed in the grain to allow air to circulate could be changed depending on the grain type, drying would be more efficient. Therefore, the objective of this project is to provide a grain drying device that is easy to use and can be used for a variety of grains. [Means for solving the problem]

[0005] In order to solve the above problems, the grain drying apparatus 1 according to the first aspect of the present invention comprises, as shown in FIG. 1, a fan connection part 20 for drawing in air, an upper cylindrical part 40 connected to the fan connection part 20 and through which air flows, and a lower cylindrical part 60 connected to the upper cylindrical part 40 on the side opposite the fan connection part 20 and having a hole 64 formed in a side wall 62, and the upper cylindrical part 40 and the lower cylindrical part 60 are detachably connected.

[0006] With this configuration, by drawing air from the fan connection part, the air around the grain around the lower tube is drawn through the holes in the lower tube and through the lower and upper tubes, drying the grain. And because the lower tube is detachably connected to the upper tube, the size of the holes can be changed by replacing only the lower tube, making this a grain drying device that can be easily used for various grains.

[0007] In the grain drying apparatus 1 according to the second aspect of the present invention, as shown in Fig. 5, the tip 70 of the lower tube portion 60 is tapered and has a drill bit 72. With this configuration, when the grain drying apparatus is installed by sticking it into grain, the tapered tip makes it easy to stick it in, and the drill bit makes it easy to rotate the tip to stick it in.

[0008] In the grain drying apparatus 1 according to the third aspect of the present invention, a duct 12 can be connected to the fan connection part 20, as shown in Fig. 9, for example. With this configuration, the grain drying apparatus can dry grain by sucking air through the duct, making the grain drying apparatus easier to use.

[0009] In a grain drying apparatus 2 according to the fourth aspect of the present invention, as shown in Fig. 12, the fan connection unit 20 is connected to a plurality of upper tube parts 40, and a lower tube part 60 is connected to each of the upper tube parts 40. With this configuration, it is possible to dry a plurality of grains stored in, for example, storage bags, using a single fan connection unit and a plurality of lower tube parts.

[0010] In a grain drying apparatus 2 according to a fifth aspect of the present invention, as shown in Fig. 12, holes 64 of different sizes are formed in a lower tube portion 60 connected to a plurality of upper tube portions 40. With this configuration, a plurality of grain types can be dried simultaneously.

[0011] A grain drying apparatus 1 according to a sixth aspect of the present invention includes an extension member 80 between the upper tube portion 40 and the lower tube portion 60, as shown in Fig. 11, for example. With this configuration, the grain drying apparatus can easily dry grain stored at different depths.

[0012] A grain drying apparatus 1 according to a seventh aspect of the present invention is provided with a detachable handle 30 on a cylinder upper portion 40, as shown in Fig. 6, for example. With this configuration, the grain drying apparatus can be easily installed using the handle when it is installed by sticking it into grain, and the handle can be removed when not being installed, so the handle does not get in the way. [Effects of the Invention]

[0013] The grain drying device of the present invention comprises a fan connection section for sucking in air, an upper cylinder section connected to the fan connection section and through which air flows, and a lower cylinder section connected to the upper cylinder section on the opposite side of the fan connection section and having a hole formed in the side wall.Since the upper and lower cylinder sections are detachably connected, the size of the hole can be changed by replacing only the lower cylinder section, resulting in a grain drying device that is easy to use and can be used for a variety of grains. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view of a grain drying apparatus according to one embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view illustrating assembly of the upper and lower cylinders of the grain drying apparatus shown in FIG. [Figure 3] FIG. 3 is a detailed view illustrating the assembly of the upper and lower cylindrical parts. [Figure 4] FIG. 4 is a detailed view showing the state in which the cylindrical upper and lower parts shown in FIG. 3 are assembled together. [Figure 5]Figure 5 shows the tip of the lower tube, (a) is a side view, and (b) is a bottom view. [Figure 6] FIG. 6 is a perspective view showing how a handle is attached to the upper part of the tube. [Figure 7] FIG. 7 is a perspective view of the upper cylinder portion to which the handle is attached and the fan connection portion. [Figure 8] Figure 8 is a perspective view showing how a handle is attached to the upper part of the cylinder by a mechanism different from that in Figure 6. For the sake of explanation, the cylindrical part is shown by a dashed line. [Figure 9] FIG. 9 is a side cross-sectional view showing how grains are dried using the grain drying device. [Figure 10] FIG. 10 is a side cross-sectional view showing how the grain drying apparatus and the duct are connected. [Figure 11] FIG. 11 is a perspective view of a grain drying apparatus having an extension member between an upper cylinder and a lower cylinder. [Figure 12] FIG. 12 is a side cross-sectional view of a grain drying device having two upper and lower cylindrical sections. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each drawing, identical or corresponding devices are designated by the same reference numerals, and duplicate explanations will be omitted. In addition, in this specification, the terms "upper" and "lower" refer to "upper" and "lower" in the drawings and do not necessarily correspond to the upper and lower positions of actual objects. First, a grain drying apparatus 1 will be described with reference to FIG. 1. The grain drying apparatus 1 includes a fan connection portion 20 for sucking air, an upper tube portion 40 connected to the fan connection portion 20 and through which air flows, and a lower tube portion 60 connected to the upper tube portion 40 on the side opposite the fan connection portion 20 and having a hole 64 formed in a side wall 62.

[0016] The fan connection unit 20 is typically connected to a suction fan and draws in air around the grain through the upper tube portion 40 and the lower tube portion 60. Here, the grain includes, but is not limited to, pulses such as soybeans, buckwheat, rice (husks), and wheat. The connection to the suction fan may be direct or via a duct or the like. While FIG. 1 shows the cylindrical fan connection unit 20 oriented perpendicular to the upper tube portion 40 and the lower tube portion 60, the present invention is not limited to this.

[0017] The tubular upper part 40 is a cylindrical element connected to the fan connection part 20, and air is sucked in by the fan connection part 20. Typically, it is fixed to the fan connection part 20. Note that the fan connection part 20 and the tubular upper part 40 may be molded integrally. Although a cylindrical tubular upper part 40 is shown in FIG. 1, this is not limiting. However, when the tubular upper part 40 is to be thrust into grain stored in a storage bag or container, a cylindrical or truncated conical shape is preferable.

[0018] The lower tube section 60 is a cylindrical element connected to the upper tube section 40 on the side opposite the fan connection section 20. Numerous holes 64 are formed in the side wall 62 of the lower tube section 60 to allow air to pass through. Alternatively, the lower tube section 60 may be formed from a punching board formed into a cylindrical shape with a cap at the bottom. The holes 64 are sized to prevent grain from passing through. That is, when air is sucked in by the fan connection section 20, the air in the grain surrounding the lower tube section 60 is sucked through the holes 64 in the lower tube section 60, passes through the lower tube section 60 and the upper tube section 40, and is exhausted from the fan connection section 20. This air flow efficiently dries the grain. The number and arrangement of the holes 64 are not particularly limited. The lower tube section 60 is typically cylindrical in shape so that it can be thrust into the grain, but this is not a limitation. However, when thrusting into grain stored in a storage bag or container, a cylindrical, truncated conical, or conical shape is preferred.

[0019] As shown in Figure 2, the upper tube 40 and the lower tube 60 are detachably connected. The lower end of the upper tube 40 and the upper end of the lower tube 60 may overlap, and the upper tube 40 and the lower tube 60 may be fixed together by tightening a butterfly bolt. By detachably connecting the upper tube 40 and the lower tube 60, it becomes possible to easily replace only the lower tube 60, which is easily damaged by friction with the grain, etc. Furthermore, by having lower tubes 60 with different sizes, numbers (opening rates), or arrangement patterns of holes 64 depending on the type of grain, the grain drying apparatus 1 can be made suitable for each type of grain.

[0020] FIG. 3 shows details of an example of assembly. The lower end of the upper tube portion 40 is formed with a lower-end expansion portion 42, which has a larger diameter. The upper end of the lower tube portion 60 is inserted into the lower-end expansion portion 42. The lower tube portion 60 is then inserted until its upper end 68 abuts against the upper end of the lower-end expansion portion 42, i.e., the portion with the smaller diameter. The upper tube portion 40 and the lower tube portion 60 are formed with through-holes 46, 66 at a position that allows them to communicate with each other. A nut 52 is fixed inside the through-hole 66 in the lower tube portion 60, and a butterfly bolt 50 is screwed into the through-hole 46 in the upper tube portion 40 from the outside. By assembling them in this manner, the upper tube portion 40 and the lower tube portion 60 are integrated as shown in FIG. 4. With this configuration, the upper end 68 of the lower tube portion 60 abuts against the upper end of the lower-end expansion portion 42, preventing misalignment even when a reaction force is applied from the grain when the grain drying device 1 is inserted. Note that the lower end expansion portion 42 may not be formed on the lower end side of the upper tubular portion 40, and the upper end of the lower tubular portion 60 may be formed with a larger diameter, or may be formed with a diameter that allows the upper tubular portion 40 and the lower tubular portion 60 to fit together. Furthermore, the means for fixing and integrating the upper tubular portion 40 and the lower tubular portion 60 is not limited to the wing bolt 50 and nut 52, and other known mechanisms may be used, but using the wing bolt 50 eliminates the need for other tools, making handling easier.

[0021] As shown in Figure 5, it is preferable that the tip 70 on the lower side of the lower tube part 60 has a tapered shape. This is because when the grain drying apparatus 1 is inserted into the grain to be installed, the reaction force from the grain can be reduced, and it can be inserted with a weak force. Furthermore, it is preferable that the grain drying apparatus 1 has a spiral drill bit 72. This makes it easier to insert the grain drying apparatus 1 while rotating it. In Figure 5, four drill bits 72 are provided, but the number of drill bits 72 is not limited to four.

[0022] As shown in FIG. 6, it is preferable that the handle 30 be attachable to the upper tube portion 40. A nut 32 is fixed to the upper tube portion 40, and the handle 30 is fixed to the upper tube portion 40 by screwing in a thread on the tip of the handle 30, as shown in FIG. 7. The handle 30 makes it easier to hold and turn the grain drying apparatus 1 when inserting the grain drying apparatus 1 into grain. However, the handle 30 can get in the way when transporting or operating the grain drying apparatus 1 (drying grain), or it can be dangerous if the handle 30 protrudes. Therefore, it is preferable that the handle 30 be detachable by threading onto the nut 32. While a structure that threads onto the nut 32 is preferable because it can be easily attached and detached without using additional tools, the handle 30 may be attached in other ways. Typically, the handle 30 extends in four directions, but this is not limited to this.

[0023] For example, as shown in FIG. 8, a through pipe 34 may be provided in the cylindrical upper portion 40, the handle 30 may be passed through the through pipe 34, and the handle 30 may be secured by a pipe pin 36, or other known configurations may be used.

[0024] FIG. 9 shows how grain G is dried using the grain drying apparatus 1. The grain G is stored in a storage bag B or a container. The lower tube portion 60 of the grain drying apparatus 1 is thrust into the grain G so that it is submerged. A suction fan 10 is connected to the fan connection portion 20 of the grain drying apparatus 1. The fan connection portion 20 and the suction fan 10 may be connected by a duct 12. Using the duct 12 is preferable because the suction fan 10 can be placed in a stable location, such as on the ground. By operating the suction fan 10, air is sucked into the storage bag B through the duct 12, the fan connection portion 20, the upper tube portion 40, and the lower tube portion 60 and then exhausted. The grain G cannot pass through the holes 64 in the side wall 62 of the lower tube portion 60, so only air is sucked in. This allows the grain G to be dried.

[0025] As shown in FIG. 10 , the connection point 22 of the fan connection part 20 with the duct 12 may be configured with a step 24. The step 24 makes it easier to connect ducts 12 of different sizes. Alternatively, a taper may be used instead of the step 24. A removable cover 26 may be attached to the end face of the fan connection part 20 that is not connected to the duct 12. The removable cover 26 allows the duct 12 to be connected to either end face of the fan connection part 20, improving usability. By tightening a band 28 around the periphery of the duct 12 connected to the fan connection part 20, air leakage can be easily prevented. Furthermore, providing a groove for the band 28 enhances the leak prevention effect.

[0026] As shown in Figure 11, a cylindrical extension member 80 may be inserted between the upper tube portion 40 and the lower tube portion 60. The connections between the upper tube portion 40 and the extension member 80, and between the extension member 80 and the lower tube portion 60, may be configured in the same manner as described for the connection between the upper tube portion 40 and the lower tube portion 60. By providing a detachable extension member 80 in this way, the depth of the grain drying apparatus 1 can be easily changed even when the depth of the grain G stored in the storage bag B or container varies.

[0027] In the explanations above, one upper tube section 40 and one lower tube section 60 are connected to one fan connection section 20. However, as shown in the grain drying apparatus 2 in FIG. 12, multiple upper tube sections 40 and lower tube sections 60 may be connected to one fan connection section 20. Also, holes 64 of different sizes may be formed in the multiple lower tube sections 60. Furthermore, the upper tube sections 40 and lower tube sections 60 may have different diameters. By providing multiple upper tube sections 40 and lower tube sections 60, it is possible to simultaneously dry grain G stored in multiple storage bags B, and it is also possible to simultaneously dry multiple types of grain. [Explanation of symbols]

[0028] 1, 2 Grain drying equipment 10. Suction fan 12 Duct 20 Fan connection 22 Connection points 24 steps 26 Lid 28 bands 30 Handle 40 Top of cylinder 42 Lower end extension 46 Through hole 50 Wing bolt 52 Nut 60 Lower part of cylinder 62 Side wall 64 holes 66 Through hole 68 Top 70 Tip 72 Drill Bits 80 Extension member B. Storage bag G. Grain

Claims

1. a fan connection for drawing air; a tube upper portion connected to the fan connection portion and through which the air flows; a cylindrical lower portion connected to the cylindrical upper portion on the side opposite to the fan connection portion and having a hole formed in a side wall; The upper tube part and the lower tube part are detachably connected to each other. Grain drying equipment.

2. The tip of the lower cylinder is tapered and has a drill bit. The grain drying apparatus of claim 1 .

3. A duct can be connected to the fan connection portion. The grain dryer of claim 1 .

4. The fan connection portion is connected to a plurality of the cylinder upper portions, and the cylinder lower portions are connected to the plurality of cylinder upper portions, respectively. The grain drying apparatus of claim 1 .

5. The cylindrical lower portions connected to the plurality of cylindrical upper portions have holes of different sizes formed therein.

5. The grain drying apparatus of claim 4.

6. An extension member is provided between the cylindrical upper portion and the cylindrical lower portion. The grain drying apparatus of claim 1.

7. A handle is detachably attached to the upper part of the cylinder. The grain drying apparatus of claim 1.

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