JP7024314B2 - Grain dryer - Google Patents

Description

The present invention relates to a grain dryer for drying grains such as rice and wheat with hot air, and more particularly to a grain dryer capable of easily inspecting and cleaning a drying chamber.

Conventionally, a grain dryer having a storage section at the upper part and a drying section at the lower part and ventilating and drying the grains flowing down from the storage section in the drying section is well known.

The drying portion is provided with a drying chamber via a partition having air permeability on the side of the hot air chamber, and an exhaust chamber via a partition having air permeability on the side of the drying chamber. The grain that flows down is dried by being deprived of water by the hot air that passes through the drying chamber from the hot air chamber and is exhausted from the exhaust chamber.

By the way, in the drying portion, since the partition wall is clogged by grains or the like flowing down the drying chamber, it is necessary to inspect and clean the drying chamber. Disclosed is a grain drying device that can easily clean the drying room by removing the above.

However, the partition wall constituting the drying chamber in the drying portion usually has a large surface area and is usually provided with a large number of reinforcing portions by welding or the like in order to resist the pressure of the flowing grain, and is described in Patent Document 1. In the described grain drying device, when the partition wall is removed, it must be removed by a plurality of workers, which causes a problem of poor workability.

Utility Model Registration No. 2525313

Therefore, an object of the present invention is to provide a grain dryer capable of improving workability when inspecting and cleaning a drying chamber.

In order to achieve the above object, the present invention
A grain dryer having a grain storage section at the top and a ventilation drying section at the bottom, and ventilation drying of grains flowing down from the grain storage section at the ventilation drying section.
The ventilation drying section is a hot air chamber communicating with a hot air generator, a drying chamber provided on the side of the hot air chamber via a first partition wall having air permeability, and a drying chamber into which grains stored in the grain storage section flow down. In a grain dryer having an exhaust chamber provided on the side of the drying chamber via a second partition wall having air permeability and communicating with an exhaust device.
The second partition wall is composed of a plurality of perforated plates having a rectangular shape and having reinforcing portions extending along each side provided on four sides.
Each perforated plate is characterized in that it is provided at a predetermined position of the ventilation drying portion so as to be removable.

The present invention
On the other hand, the ventilation drying portion is provided with an upper support member and a lower support member extending in the front-rear direction of the machine body.
At the lower end of the reinforcing portion provided on the lower side of each of the perforated plates, a groove-shaped holding portion extending along the lower side is provided.
Each of the perforated plates sandwiches the lower support member between the holding portions, and the reinforcing portion provided on the upper side is brought into contact with the surface of the upper support member on the drying chamber side, so that a predetermined position of the ventilation drying portion is obtained. It is provided so that it can be attached and detached.

The present invention
It is preferable that the perforated plate has a rotating hook on the surface opposite to the drying chamber so that the rotating hook can be locked to other perforated plates adjacent to the left and right.
Further, the present invention
The second partition wall is composed of a combination of five perforated plates, and the perforated plates at both ends in the front-rear direction of the machine are screw-fixed to the upper support member and the lower support member, and the three central plates are fixed. A handle is provided on the perforated plate, and the two perforated plates on the left and right have a pair of left and right rotating hooks on the surface on the side opposite to the drying chamber on the side opposite to the drying chamber, and each of the rotating hooks is moved to the left and right. It is preferable that it can be locked to another adjacent perforated plate.

The present invention
The lower support member is provided on the center side of the machine body with respect to the upper support member, and the second partition wall is mounted at a predetermined position of the ventilation drying portion in a state where the upper part of each of the perforated plates is inclined to the outside of the machine body. It is possible to escape.

The present invention
It is preferable that each of the perforated plates is composed of a single metal plate having a perforated portion formed in the center, and the reinforcing portion is formed by bending and molding the peripheral portion of the metal plate.

The present invention
The first partition wall is composed of a plurality of perforated plates having a rectangular shape and having reinforcing portions extending along each side provided on four sides.
It is preferable that each of the perforated plates of the first partition wall is provided at a predetermined position of the ventilation drying portion so as to be removable.

According to the grain dryer of the present invention, the second partition wall separating the drying chamber and the exhaust chamber of the ventilation drying portion is composed of a plurality of perforated plates, and each perforated plate can be attached to and detached from a predetermined position of the ventilation drying portion. Since it is provided, it is not necessary to remove the entire second partition wall, and one or more perforated plates can be removed by one worker, which improves workability when inspecting and cleaning the drying chamber. be able to.

Further, according to the grain dryer of the present invention, since the plurality of perforated plates constituting the second partition wall are rectangular and have reinforcing portions extending along each side provided on all four sides, there is a problem in strength. Does not occur.

In the grain dryer of the present invention, the ventilation drying portion is provided with an upper support member and a lower support member extending in the front-rear direction of the machine body, while the lower end of the reinforcing portion provided on the lower side of each perforated plate is provided. A groove-shaped holding portion extending along the lower side is provided, each of the perforated plates holds the lower support member in the holding portion, and a reinforcing portion provided on the upper side is provided on the drying chamber side of the upper support member. Since the perforated plate is provided so as to be detachably attached to a predetermined position of the ventilation drying portion by abutting on the surface of the above, it is possible to easily attach and detach each perforated plate to a predetermined position of the ventilation drying portion.

In the grain dryer of the present invention, if the perforated plate has a rotating hook on the surface opposite to the drying chamber and the rotating hook can be locked to other perforated plates adjacent to the left and right, it can be rotated. The perforated plate having the moving hook and the perforated plate sandwiched between the perforated plates having the rotating hook can be easily fixed at a predetermined position without using screws or the like, and can be easily released from the fixing.
Further, in the grain dryer of the present invention, the second partition wall is composed of a combination of the five perforated plates, and the perforated plates at both ends in the front-rear direction of the machine are screwed to the upper support member and the lower support member. It is fixed, and handles are provided on the three perforated plates in the center, and the two perforated plates on the left and right have a pair of left and right rotating hooks on the surface on the side of the exhaust chamber opposite to the drying chamber. If each of the rotating hooks can be locked to other perforated plates adjacent to the left and right, the three perforated plates in the center can be easily fixed at a predetermined position in the ventilation drying portion without using screws or the like. It can be easily unfixed, and can be easily attached and detached by holding the handle.

In the grain dryer of the present invention, the lower support member is provided on the center side of the machine body with respect to the upper support member, and the second partition wall is in a state where the upper part of each of the perforated plates is inclined to the outside of the machine body. Since it can be attached to and detached from the ventilation drying portion at a predetermined position, the pressure of the grain acting on each perforated plate can be appropriately dispersed in the upper support member and the lower support member.

In the grain dryer of the present invention, each of the perforated plates is composed of a single metal plate having a perforated portion formed in the center, and the reinforcing portion is formed by bending and molding the peripheral portion of the metal plate. If so, the welding work that requires skillful technique becomes unnecessary.

In the grain dryer of the present invention, the first partition wall separating the hot air chamber and the drying chamber of the ventilation drying portion is composed of a plurality of perforated plates, and each perforated plate is provided at a predetermined position of the ventilation drying portion so as to be removable. If this is the case, it is not necessary to remove the entire first partition wall, and one or more perforated plates can be removed by one worker, which improves workability when inspecting and cleaning the drying chamber. be able to.

Further, the grain dryer of the present invention has a problem in strength as long as the plurality of perforated plates constituting the first partition wall are rectangular and have reinforcing portions extending along each side on all four sides. Does not occur.

A front sectional view of a grain dryer according to an embodiment of the present invention. It is explanatory drawing of the state which the machine body side plate was removed in the ventilation drying part of the grain dryer of FIG. An exploded view of the partition wall that separates the drying chamber and the ventilation chamber. Explanatory drawing of the perforated plate constituting a partition wall. Explanatory drawing of the metal plate forming a perforated plate.

An embodiment of the present invention will be described.
FIG. 1 shows a front sectional view of a grain dryer according to an embodiment of the present invention.
The grain dryer 1 according to the embodiment of the present invention includes a machine 11 having a grain storage section 2 at the upper part and a ventilation drying section 3 at the lower part, and a grain frying machine 12 erected on the front side of the machine 11.

A hot air chamber 4 communicating with a hot air generator such as a burner (not shown) is provided in the center of the ventilation drying portion 3, and both sides of the hot air chamber 4 are interposed through a first partition wall (porous wall) 5 having air permeability. A pair of drying chambers 6 are provided, and a pair of exhaust chambers 8 communicating with an exhaust device (not shown) via a second partition wall (porous wall) 7 having air permeability are provided on the outer side of the drying chamber 6. ..

A rotary valve 13 is disposed below the ventilation drying section 3, and a lower screw conveyor 14 connected to the lower portion of the grain raising machine 12 is disposed below the rotary valve 13. Further, above the grain storage unit 2, an upper screw conveyor 15 connected to the upper part of the grain raising machine 12 is arranged, and below the rear end of the upper screw conveyor 15, a turntable 16 is arranged. Ru.

In the grain dryer 1 according to the embodiment of the present invention, the grain to be stretched in the machine 11 is lifted by the grain raising machine 12, conveyed by the upper screw conveyor 15, and dropped onto the upper surface of the turntable 16. Then, it is evenly dispersed and charged into the grain storage portion 2.

The grain charged into the grain storage section 2 flows down each drying chamber 6 in the draft drying section 3, is discharged downward from the rotary valve 13, and is conveyed toward the front side of the machine body 11 by the lower screw conveyor 14. Then, the grain is fried again by the grain raising machine 12 and circulated in the grain drying machine 1.

Then, when the grain flows down each drying chamber 6 in the draft drying section 3, the grain is deprived of moisture by the hot air discharged from each exhaust chamber 8 through the drying chamber 6 from the hot air chamber 4. It is broken and dried.

FIG. 2 shows an explanatory view of the state in which the machine body side plate is removed in the ventilation drying portion of the grain dryer of FIG. 1 as viewed diagonally from the front. FIG. 3 shows an exploded assembly view of the second partition wall that separates the drying chamber and the exhaust chamber of the ventilation drying section. FIG. 4 shows an explanatory view of the perforated plate constituting the second partition wall.
In the embodiment of the present invention, the second partition wall 7 that separates the drying chamber 6 and the exhaust chamber 8 is formed from a plurality of perforated plates 71 that are detachably provided at predetermined positions of the ventilation drying portion 3 as shown in FIG. It is composed.

The upper support member 75 and the lower support member 76 shown in FIG. 3 are provided in a beam shape in the front-rear direction of the machine body 11 at a predetermined position of the ventilation drying portion 3. Further, the upper support member 75 is provided with a stopper piece 751 extending downward, and the lower support member 76 is provided with a support portion 761 for supporting the lower end of the perforated plate 71 at the upper portion.

Each perforated plate 71 has a rectangular shape, and as shown in FIG. 4, flange-shaped reinforcing portions 71a and 71b extending in the vertical direction are provided on both the left and right sides, respectively, and flange-shaped reinforcing portions 71c extending in the vertical direction on both the upper and lower sides. , 71d are provided.
A pair of holding pieces 72a, 72b extending downward along the lower side are provided on the reinforcing portion 71d provided on the lower side of each of the perforated plates 71, and the lower surface of the reinforcing portion 71d and the holding pieces 72a, 72b are provided. A holding portion 72 that holds the support portion 761 of the lower support member 76 is configured.

In the embodiment of the present invention, each of the perforated plates 71 sandwiches the support portion 761 of the lower support member 76 with the sandwiching portion 72, and the reinforcing portion 71c provided on the upper side is a stopper piece of the upper support member 75. By abutting on the surface of the 751 on the drying chamber 6 side, the ventilation drying portion 3 is detachably attached to a predetermined position.
Therefore, according to the embodiment of the present invention, it is possible to easily attach / detach each perforated plate 71 to a predetermined position of the ventilation drying portion 3.

Further, in the embodiment of the present invention, the lower support member 76 is provided on the center side of the machine body 11 with respect to the upper support member 75, and the second partition wall 7 has the machine body 11 above each of the perforated plates 71. It is possible to attach / detach to a predetermined position of the ventilation drying portion 3 in a state of being inclined to the outside.
Therefore, according to the embodiment of the present invention, the pressure of the grain acting on each of the perforated plates 71 can be appropriately dispersed in the upper support member 75 and the lower support member 76.

In the embodiment of the present invention, the perforated plate 71 has a pair of left and right rotating hooks 73 on the surface on the side of the exhaust chamber 8 opposite to the drying chamber 6, and the rotating hooks 73 are adjacent to each other on the left and right. It can be locked to another perforated plate 71.

In the example shown in FIGS. 2 and 3, the second partition wall 7 is composed of a combination of five perforated plates 71, and the perforated plates 71 at both left and right ends are screwed to the upper and lower support members 75 and 76. A handle 74 is provided on the three central perforated plates 71, and the rotating hook 73 is provided on the two left and right perforated plates 71.
Therefore, the three perforated plates 71 in the center can be easily fixed at a predetermined position of the ventilation drying portion 3 without using screws or the like, and can be easily released from the fixed position, and can be easily attached by holding the handle 74. Can be removed.

FIG. 5 shows an explanatory view of the metal plate forming the perforated plate of FIG.
In the embodiment of the present invention, each perforated plate 71 is composed of a single metal plate in which a perforated portion 711 is formed in the center as shown in FIG. 5, for example, and the peripheral portion of the metal plate is bent and molded. , The reinforcing portions 71a to 71d as shown in FIG. 4 can be formed.
The reinforcing portions 71a to 71d of the perforated plate 71 can be formed by welding on the four sides of the perforated plate 71, but if it is formed by bending from one metal plate, a skilled technique is required. No welding work is required.

According to the grain dryer 1 according to the embodiment of the present invention, the second partition wall 7 separating the drying chamber 6 and the exhaust chamber 8 of the ventilation drying unit 3 is formed by combining a plurality of porous plates 71, and each porous plate 71 is formed. Is provided at a predetermined position of the ventilation drying portion 3 so as to be removable, so that it is not necessary to remove the entire second partition wall 7, and one or a plurality of perforated plates 71 can be installed by one worker from the ventilation chamber 8 side. Since it can be removed, workability when inspecting and cleaning the drying chamber can be improved.

Further, according to the grain dryer 1 according to the embodiment of the present invention, the plurality of perforated plates 71 constituting the second partition wall 7 are rectangular, and the reinforcing portions 71a to 71d extending along each side are four sides. Since it is provided in, there is no problem in strength.

The grain dryer according to the embodiment of the present invention has an example in which one perforated plate 71 is provided in the vertical direction between the upper support member 75 and the lower support member 76, but a plurality of grain dryers are provided in the vertical direction. Perforated plate 71 may be provided.

Further, the grain dryer according to the embodiment of the present invention is an example in which a pair of drying chambers 6 are provided on both sides of the hot air chamber 4 in a state where the upper side is inclined to the outside of the machine body 11. 6 does not necessarily have to be provided in an inclined state.

The grain dryer according to the embodiment of the present invention is provided with one hot air chamber 4 as an example, but may be provided with a plurality of hot air chambers.
Further, the grain dryer according to the embodiment of the present invention is an example of a circulation type dryer, but it does not necessarily have to be a circulation type dryer.

The grain dryer according to the embodiment of the present invention is an example in which the second partition wall 7 separating the drying chamber 6 and the exhaust vent chamber 8 of the ventilation drying unit 3 is configured by combining a plurality of perforated plates 71. However, the first partition wall 5 that separates the hot air chamber 4 and the drying chamber 6 may also be configured by combining a plurality of perforated plates 71.

Needless to say, the present invention is not limited to the above-described embodiment, and its configuration can be appropriately changed as long as it does not deviate from the scope of the invention.

In the grain dryer of the present invention, it is not necessary to remove the entire partition wall separating the drying chamber and the exhaust chamber of the ventilation drying section, and one or more perforated plates can be removed by one worker, so that the inside of the drying chamber can be removed. It is highly practical because it can improve workability when performing inspections and cleaning.

1 Grain dryer 11 Body 12 Grain lifter 13 Rotary valve 14 Lower screw conveyor 15 Upper screw conveyor 16 Turntable 2 Grain storage 3 Ventilation drying section 4 Hot air chamber 5 First partition (porous wall)
6 Drying chamber 7 Second partition wall (porous wall)
71 Perforated plate 71a to 71d Reinforcing part 711 Perforated part 72 Holding part 72a, 72b Holding piece 73 Rotating hook 74 Handle 75 Upper support member 751 Stopper piece 76 Lower support member 761 Support part 8 Blower chamber

Claims (5)

A grain dryer having a grain storage section at the top and a ventilation drying section at the bottom, and ventilation drying of grains flowing down from the grain storage section at the ventilation drying section.
The ventilation drying section is a hot air chamber communicating with a hot air generator, a drying chamber provided on the side of the hot air chamber via a first partition wall having air permeability, and a drying chamber into which grains stored in the grain storage section flow down. In a grain dryer having an exhaust chamber provided on the side of the drying chamber via a second partition wall having air permeability and communicating with an exhaust device.
The second partition wall is composed of a plurality of perforated plates having a rectangular shape and having reinforcing portions extending along each side provided on four sides.
On the other hand, the ventilation drying portion is provided with an upper support member and a lower support member extending in the front-rear direction of the machine body.
At the lower end of the reinforcing portion provided on the lower side of each perforated plate, a groove-shaped holding portion extending along the lower side is provided.
Each of the perforated plates sandwiches the lower support member between the holding portions, and the reinforcing portion provided on the upper side is brought into contact with the surface of the upper support member on the drying chamber side, so that a predetermined position of the ventilation drying portion is obtained. It is provided so that it can be attached and detached .
The lower support member is provided on the center side of the machine body with respect to the upper support member, and the second partition wall is mounted at a predetermined position of the ventilation drying portion in a state where the upper part of each of the perforated plates is inclined to the outside of the machine body. A grain dryer characterized by being removable . The grain dryer according to claim 1 , wherein the perforated plate has a rotating hook on a surface opposite to the drying chamber, and the rotating hook can be locked to other perforated plates adjacent to the left and right. The second partition wall is composed of a combination of five perforated plates, and the perforated plates at both ends in the front-rear direction of the machine body are screw-fixed to the upper support member and the lower support member, and the three central plates are fixed. The perforated plate is provided with a handle, in which the two perforated plates on the left and right have a pair of left and right rotating hooks on the surface on the side opposite to the drying chamber on the side opposite to the drying chamber, and the respective rotating hooks are left and right. The grain dryer according to claim 2 , which can be locked to another adjacent perforated plate. Each of the perforated plates is made of a single metal plate having a perforated portion formed in the center, and the reinforcing portion is formed by bending and molding the peripheral portion of the metal plate according to any one of claims 1 to 3 . The listed grain dryer. The first partition wall is composed of a plurality of perforated plates having a rectangular shape and having reinforcing portions extending along each side provided on four sides.
The grain dryer according to any one of claims 1 to 4 , wherein each of the perforated plates of the first partition wall is provided at a predetermined position of the ventilation drying portion so as to be removable.

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