Grain dryer

Abstract

To provide a grain dryer excellent in cleanability of an inside of a drying part.SOLUTION: A grain dryer includes, in order from a top of a main body 2 of the dryer, a storage part 3, a drying part 4, and a grain-collecting part 5. A grain flow path for connecting the storage part 3 and the grain-collecting part 5, which are separated by a ventilation member, is provided inside the drying part 4. A hot air path and an exhaust air path are provided on each side of the grain flow path. At least part of an exhaust air path ventilation member 22, which separates the grain flow path and exhaust air path, is removably provided. At least one of the lid bodies 20 arranged on both sides of the drying part 4 is removably provided, so that the grain flow path 24 can be exposed.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a grain dryer, and more particularly to a grain dryer having an interior of a drying section that is easy to clean. [Background technology]

[0002] Grain dryers include circulation type, flat type, and other general-purpose grain dryers for drying grains such as rice and soybeans.

[0003] A circulation-type grain dryer has, within the dryer body, a storage section that stores grain, a drying section that dries the grain, and a circulation mechanism section (e.g., a grain collection section) that discharges the dried grain by rotating a discharge valve (rotary valve) and drops it into a grain trough below, where it is circulated by a lower conveying mechanism.

[0004] This type of grain dryer has a grain flow path within the drying section that is separated by a ventilation member and connects the storage section and the circulation mechanism section, and a hot air path and an exhaust air path are provided on each side of this grain flow path.The grain is guided from the upper storage section through the drying section to the circulation mechanism section, and then returned to the upper storage section and circulated, while the grain is dried with hot air in the grain flow path of the drying section (see, for example, Patent Documents 1 to 4). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-134115 A [Patent Document 2] JP 2020-118445 A [Patent Document 3] JP 2019-078410 A [Patent Document 4] JP 2018-084370 A Summary of the Invention [Problem to be solved by the invention]

[0006] Patent documents 1 to 3 disclose grain dryers and the like that have a removable cleaning port in the drying section. Patent document 4 discloses a grain dryer and the like that has an inspection port in the storage section. In such conventional grain dryers, when cleaning the upper part of the drying section, it is difficult to clean from the drying section, and cleaning can only be done from inside the storage section located above the drying section, and there is a problem that cleaning is poor. In particular, in order to clean the upper part of the drying section, it is necessary to first rise to the top of the grain dryer (i.e., the top of the storage section) and then descend to clean the inside of the storage section, which entails a problem of risk, such as falling from a high place.

[0007] The present invention has been made in consideration of the above problems in the prior art, and aims to provide a grain dryer having an interior of a drying section that is easy to clean. [Means for solving the problem]

[0008] According to the present invention, there is provided a grain dryer as follows.

[0009] [1] The dryer body includes, in order from the top, a storage section for storing grain, a drying section for drying the grain, and a grain collection section for collecting the dried grain; In the drying section, a grain flow passage is provided that connects the storage section and the grain collection section, which are separated by a ventilation member, and a hot air passage and an exhaust air passage are provided on each side of the grain flow passage. At least a part of the exhaust air passage ventilation member that separates the grain flow passage and the exhaust air passage is arranged to be freely removable, A grain dryer configured so that at least one of the lid bodies arranged on both sides of the drying section is removably arranged to expose the exhaust air passage ventilation member.

[0010] [2] The grain dryer described in [1], wherein the drying section comprises an upper drying section and a lower drying section, and the exhaust duct ventilation member is arranged in the upper drying section.

[0011] [3] The area of ​​the opening created when the exhaust ventilation member is removed is 0.15 m 2The above is the grain dryer described in [2] above. Effect of the Invention

[0012] The grain dryer of the present invention has an effect of excellent cleaning properties inside the drying section. That is, in the grain dryer of the present invention, at least a part of the exhaust air passage ventilation member is removably arranged, and at least one of the lids arranged on both sides of the drying section is removably arranged. Therefore, by removing the lid, the exhaust air passage ventilation member is exposed, and by further removing the exposed exhaust air passage ventilation member, a cleaning port (opening) for cleaning the inside of the drying section can be very easily secured.

[0013] In addition, as described above, in the grain dryer of the present invention, the lid body arranged on the side of the drying section can be used as a cleaning port that can be removed from the outside, so that when cleaning the upper part of the drying section, it is not necessary to climb to the top of the grain dryer as in the past, and dangerous movements to high places are not necessary. Furthermore, by using the lid body arranged on the side of the drying section as a cleaning port, it is easy to realize a large cleaning port (opening), which improves the ease of cleaning the inside of the drying section and also makes it extremely easy to inspect and check the inside of the drying section. [Brief description of the drawings]

[0014] [Figure 1] 1 is a side view showing a schematic diagram of one embodiment of a grain dryer of the present invention. FIG. [Diagram 2] FIG. 2 is a front view showing a schematic view of the grain dryer shown in FIG. [Diagram 3] 2 is an enlarged side view of a portion of the drying section of the grain dryer shown in FIG. 1, with a lid body that constitutes part of the side surface of the drying section removed. FIG. [Figure 4] 4 is a diagram showing a state in which an exhaust air passage ventilation member has been further removed from an opening portion of the drying unit shown in FIG. 3 after a cover body has been removed from the side surface thereof. [Diagram 5] FIG. 2 is a schematic diagram showing a cross section taken along line AA in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The following describes the embodiments of the present invention, but the present invention is not limited to the following embodiments. In other words, it should be understood that the scope of the present invention includes any modifications and improvements to the following embodiments based on the ordinary knowledge of a person skilled in the art without departing from the spirit of the present invention.

[0016] One embodiment of the grain dryer of the present invention is a grain dryer 100 as shown in Figures 1 and 2. Here, Figure 1 is a side view that typically shows one embodiment of the grain dryer of the present invention. Figure 2 is a front view that typically shows the grain dryer shown in Figure 1. Figure 3 is an enlarged side view of a portion of the drying section of the grain dryer shown in Figure 1, showing a state in which a lid that constitutes a portion of the side surface of the drying section has been removed. Figure 4 is a view showing a state in which an exhaust air passage ventilation member has been further removed from an opening portion obtained by removing the lid on the side surface of the drying section in Figure 3. Figure 5 is a view that typically shows a cross section taken along line AA in Figure 1.

[0017] The grain dryer 100 is provided with a storage section 3, a drying section 4, and a grain collection section 5, in that order from the top of the dryer main body 2. The storage section 3 is a section for storing grains. The drying section 4 is a section for drying grains. The grain collection section 5 is a section for discharging dried grains by rotating a discharge valve and dropping them downward to be collected. The grains collected in the grain collection section 5 are lifted by a lifting machine 11 provided to extend vertically at one end of the lengthwise direction, which is the front side of the dryer main body 2, and are dropped into the storage section 3 by an upper conveying mechanism 12 provided at the top of the lifting machine 11. The lifting machine 11 is provided to extend vertically at one end of the lengthwise direction of the dryer main body 2, and an upper conveying mechanism 12 is provided at its top, and a lower conveying mechanism 13 for conveying grains to the lifting machine is provided at its bottom. The lower conveying mechanism 13 is for conveying the grains collected in the grain collection section 5 to the lifting machine. Reference numeral 14 in FIG. 1 denotes a fixed ladder provided at the top of the storage section 3.

[0018] The drying section 4 has a burner and a hot air generating furnace that serve as a heat source for the hot air sent into the drying section 4. In the grain dryer 100 of this embodiment, a hot air blower 9 including a burner that sends hot air into the drying section 4 is attached to one longitudinal end side, which is the front side, of the dryer main body 2. In the grain dryer 100 of this embodiment, an exhaust fan chamber 10 that exhausts air from the drying section 4 after grain drying to the outside is attached to the other longitudinal end side, which is the rear side, of the dryer main body 2.

[0019] In the grain dryer 100, grains are lifted to the top of the dryer body 2 by the lifter 11, and then transported by an upper conveying mechanism 12 provided at the top of the lifter 11, causing them to drop into the storage section 3. The grains in the storage section 3 are dried in the drying section 4 by hot air blown in by the hot air heater 9, then collected at the bottom of the grain collection section 5, conveyed to the lifter 11 by the lower conveying mechanism 13, and lifted again by the lifter 11 to the storage section 3, repeating this cycle.

[0020] A grain flow path 24 is provided within the drying section 4, connecting the storage section 3 and the grain collection section 5, which are separated by a ventilation member. That is, the space within the drying section 4 is separated by a ventilation member, for example as shown in FIG. 5, and the grain flow path 24, the hot air path 25, and the exhaust air path 26 are provided. Hereinafter, the ventilation member separating the grain flow path 24 and the exhaust air path 26 is referred to as the exhaust air path ventilation member 22. Also, the ventilation member separating the grain flow path 24 and the hot air path 25 is referred to as the hot air path ventilation member 27. The grain flow path 24 is separated by the exhaust air path ventilation member 22 and the hot air path ventilation member 27, and serves as a flow path connecting the storage section 3 and the grain collection section 5. On each side of the grain flow path 24 (i.e., on each of the widthwise outer sides of the grain flow path 24), a hot air path 25 partitioned by a hot air path ventilation member 27 and an exhaust air path 26 partitioned by an exhaust air path ventilation member 22 are provided.

[0021] The hot air duct 25 is connected to the hot air heater 9 at one longitudinal end of the dryer body 2, and hot air generated by the hot air heater 9 is supplied into the hot air duct 25. The exhaust air duct 26 is connected to the exhaust fan chamber 10 at the other longitudinal end of the dryer body 2, and sucks in the hot air flowing through the hot air duct 25 and exhausts it to the outside.

[0022] In the grain dryer 100, at least a part of the exhaust air passage ventilation member 22 is disposed so as to be freely removable. That is, the exhaust air passage ventilation member 22 is removably fixed to a frame for fixing the exhaust air passage ventilation member 22 within the drying section 4 of the dryer main body 2. There are no particular limitations on the mechanism for attaching and detaching the exhaust air passage ventilation member 22, but an example of a method is to detachably fix the exhaust air passage ventilation member 22 to a frame for fixing the exhaust air passage ventilation member 22 with a fastening member such as a bolt.

[0023] Furthermore, in the grain dryer 100, at least one of the lids 20 arranged on both sides of the drying section 4 is arranged so as to be freely removable. The exhaust air passage ventilation member 22 in the drying section 4 can be exposed by removing the lid 20 of the drying section 4. Therefore, by removing the lid 20 of the drying section 4, the exhaust air passage ventilation member 22 is exposed, and by further removing the exposed exhaust air passage ventilation member 22, a cleaning port (opening 21) for cleaning the inside of the drying section 4 can be very easily secured. In addition, in FIG. 3, the range indicated by the symbol P surrounded by a dotted line indicates the range where the lid 20 was attached, and FIG. 3 shows a state in which the opening 21 is exposed on the side of the drying section 4 by removing a part of the exhaust air passage ventilation member 22.

[0024] In the grain dryer 100 of this embodiment, the lid 20 on the side of the drying section 4 can be made into a cleaning port that can be removed from the outside, and when cleaning the upper part of the drying section 4, there is no need for an operator (i.e., a cleaner) to climb up to the top of the grain dryer as in the conventional case, and there is no need to move to a dangerous high place. For example, in the grain dryer 100 of this embodiment, there is no need for an operator to climb up to the top of the dryer once and then descend inside the dryer body as in the conventional case, so the risk of falling from a high place is reduced. Furthermore, by making the lid 20 of the drying section 4 into a cleaning port, it is easy to realize a large cleaning port (opening 21), which improves the ease of cleaning the inside of the drying section 4 and also makes it extremely easy to inspect and check the inside of the drying section 4.

[0025] The lid body 20 on the side surface of the drying section 4 is detachably fixed to the dryer body 2 constituting the drying section 4. There are no particular limitations on the mechanism for attaching and detaching the lid body 20, but an example of a method for detachably fixing the lid body 20 to the side surface of the drying section 4 of the dryer body 2 for fixing the lid body 20 is a method for fixing the lid body 2 to the side surface of the drying section 4 of the dryer body 2 by using a fastening member such as a bolt or a wedge.

[0026] There is no particular restriction on the size of the opening 21 created when the cover 20 and the exhaust air passage ventilation member 22 are removed, and it can be set appropriately taking into consideration the ease of cleaning the inside of the drying section 4. For example, the minimum size of the opening 21 is preferably large enough for a person to pass through. For example, if the area of ​​the opening 21 created when the exhaust air passage ventilation member 22 is removed is 0.15 m 2 It is preferable that the length and width of the opening 21 is 0.3 m×0.5 m or more, for example. By configuring in this way, the opening 21 can be appropriately large enough for a person to pass through, and even the corners inside the drying unit 4 can be thoroughly cleaned.

[0027] The drying section 4 may have a two-tiered structure consisting of an upper drying section 4a and a lower drying section 4b. For example, a large grain dryer 100 may be produced with the drying section 4 divided into an upper section (e.g., the upper drying section 4a) and a lower section (e.g., the lower drying section 4b) for reasons such as "ease of manufacturing the product (grain dryer 100) at the factory" and "ease of assembly work at the site where it is used". In the drying section 4 having a two-tiered structure, it is preferable that the exhaust air passage ventilation member 22, at least a part of which is removably arranged as described above, is arranged in the upper drying section 4a of the drying section 4. It is more preferable that at least one of the lids 20 arranged on the side surface of the upper drying section 4a is removably arranged to form a cleaning port (opening 21) on the side surface of the upper drying section 4a. Furthermore, by providing the exhaust air passage ventilation member 22 in the upper drying section 4a, ventilation is also performed in the upper drying section 4a, so that more efficient grain drying can be achieved. Furthermore, by providing the exhaust air passage ventilation member 22 in the upper part 4a of the drying section, the exhaust air passage ventilation member 22 can be easily removed after drying is completed, and cleaning of the inside of the drying section 4 can be performed more easily.

[0028] Here, by making the drying section 4 a two-tiered structure consisting of an upper drying section 4a and a lower drying section 4b, the upper drying section 4a can be given the function of thinning the thickness of the grain flow path (grain layer) by using a grain guide section, while the lower drying section 4b can be given the function of blowing air on the grain layer to promote drying.

[0029] In the drying section 4 having a two-tiered structure, an exhaust air passage ventilation member 22, at least a part of which is removably arranged, may be arranged in the lower drying section 4b of the drying section 4. At least one of the lids 20 arranged on the side surface of the lower drying section 4b may be removably arranged to form a cleaning port (opening 21) on the side surface of the lower drying section 4b. Furthermore, by adopting the above-mentioned configuration in both the upper drying section 4a and the lower drying section 4b, a cleaning port (opening 21) may be formed in both the upper drying section 4a and the lower drying section 4b. With this configuration, it is possible to clean a wider area inside the drying section 4.

[0030] The grain dryer of the present invention is not limited to the embodiments described so far, so long as the exhaust duct ventilation member can be exposed by removing the lid of the drying section, and the exposed exhaust duct ventilation member can be further removed to provide a cleaning port (opening) for cleaning the inside of the drying section. [Industrial Applicability]

[0031] The grain dryer of the present invention can be used to dry grains. [Explanation of symbols]

[0032] 2: Dryer body 3: Storage section 4:Drying section 5: Grain Collection Department 9: Hot air blower 10:Exhaust fan room 11: Grain lifting machine 12: Upper transport mechanism 13: Lower transport mechanism 14:Fixed ladder 20: Lid 21: Opening 22:Exhaust duct ventilation member 24: Grain route 25: Hot air path 26: Ventilation duct 27: Hot air passage ventilation parts 100: Grain dryer P: Area where the lid was attached

Claims

1. The dryer body includes, in order from the top, a storage section for storing grain, a drying section for drying the grain, and a grain collection section for collecting the dried grain, In the drying section, a grain flow passage is provided that connects the storage section and the grain collection section, which are separated by a ventilation member, and a hot air passage and an exhaust air passage are provided on each side of the grain flow passage. At least a part of the exhaust air passage ventilation member that separates the grain flow passage and the exhaust air passage is arranged to be freely removable, A grain dryer configured so that at least one of the lid bodies arranged on both sides of the drying section is removably arranged to expose the exhaust air passage ventilation member.

2. 2. The grain dryer according to claim 1, wherein the drying section comprises an upper section and a lower section, and the exhaust air passage ventilation member is disposed in the upper section.

3. The area of ​​the opening created when the exhaust air passage ventilation member is removed is 0.15 m ２ The grain dryer according to claim 2 .

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