JP2003302165A - Grain dryer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain dryer device capable of preventing a holding hopper from being an obstacle in the work other than holding the grain. <P>SOLUTION: In the circulation type grain dryer device 10, the holding hopper 86 is made to project forward from a furnace housing 70 by rotating the front holding hopper 86 to the rotation position where one side surface 86A faces the front, and by feeding the grain to the front holding hopper 86, the grain is held inside a lower screw conveyor 48, and inside a frame 12 from the lower screw conveyor 48 via a lift 54, etc. Then, the grain inside the frame 12 is dried with hot wind blown into the frame. In the work other than the grain holding work, by rotating the front holding hopper 86 to the rotation position where the one side surface 86A faces to the left, the front holding hopper 86 doesn't project from the furnace housing 70, and accordingly, the front holding hopper 86 is prevented from being an obstacle. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a grain drying apparatus for drying grains.

[0002]

2. Description of the Related Art For example, a circulation type grain dryer 1 shown in FIG.
00 has a machine body 102, and a long plate-like side stretch hopper 104 is provided at a lower portion of each side plate of the machine body 102. Each of the side-impregnated hoppers 104 is rotatable around the lower end and can be opened and closed. When the side-impregnated hoppers 104 are opened, the grain is stuck in the machine body 102.

A lower screw conveyor 106 is provided at the lower end of the machine body 102.
The front part of 06 projects from the front surface of the machine body 102. An elevator 108 is erected on the right side in front of the machine body 102,
The lower end of the elevator 108 communicates with the front end of the lower screw conveyor 106. Here, the grain stuck in the machine body 102 is circulated and flowed in the machine body 102 by the forward transportation by the lower screw conveyor 106 and the upward transportation by the elevator 108.

A furnace case 110 is provided on the lower left side of the front of the machine body 102, and a burner (not shown) is provided in the furnace case 110. Here, the outside air is introduced into the furnace case 110 and turned into hot air by the burner, and the hot air is blown into the machine body 102, whereby the grains flowing in the machine body 102 are dried.

The upper end of the elevator 108 has a discharge pipe 112.
After the grain drying process is completed, the upper end of the elevator 108 is communicated with the discharge pipe 112, so that the grain conveyed to the upper end of the elevator 108 passes through the discharge pipe 112. This is a configuration in which it is discharged from the circulating grain drying device 100.

By the way, due to the space of the work place where the circulation type grain drying device 100 is installed, both sides of the hopper 1 are stretched.
It may not be possible to rotate 04 to open it. In such a case, a funnel-shaped front stretch hopper 114 is provided at the lower end of the elevator 108, and grain is stretched from the front stretch hopper 114 to the lower end inside the elevator 108, so that the elevator 108 and the like can be Grains are put in 102.

However, in such a circulatory grain drying apparatus 100, the front loading hopper 114 projects forward from the lower screw conveyor 106, the elevator 108 and the furnace case 110. For this reason, there is a problem that the front loading hopper 114 becomes an obstacle during operations (grain drying operation, grain discharging operation, etc.) other than the grain loading operation into the machine body 102.

[0008]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention provides a grain drying device capable of preventing the feeding hopper from interfering with the work other than the work of feeding the grain into the main body of the device. Is the purpose.

[0009]

A grain drying apparatus according to claim 1 is provided in a cylindrical shape on the outside of the apparatus body, and has a rotation position projecting from the apparatus body and a rotation position not projecting from the apparatus body. A positionable hopper, and a hopper capable of staking grain into the device body by being rotated to a rotation position projecting from the device body,
A hot air generating unit that is provided in the apparatus body and that generates hot air from the outside air introduced into the apparatus body to dry the grain stuck in the apparatus body.

In the grain drying apparatus according to the first aspect of the present invention, the tension hopper, which is cylindrical and is provided on the outside of the apparatus body, is rotated to the rotation position projecting from the apparatus body, so that the tension hopper is removed. Grains can be put into the main body of the device.
Further, hot air is generated by the hot air generating means from the outside air introduced into the apparatus body, so that the grain stuck in the apparatus body is dried.

Here, the tension hopper can be rotated to a rotation position where it does not project from the apparatus main body. As a result, at the time of work (grain drying work, etc.) other than the work of loading grain into the device body, the work hopper is turned into a rotation position that does not project from the device body, and the work hopper becomes an obstacle. Can be prevented.

The grain drying apparatus according to a second aspect is the grain drying apparatus according to the first aspect, wherein the center of the grain inlet of the stake hopper is arranged at a position displaced from the center line of rotation of the stake hopper. , Is characterized.

In the grain drying device according to the second aspect of the present invention, since the center of the grain inlet of the stake hopper is arranged at a position displaced from the center line of rotation of the stake hopper, the rotation position where the stake hopper projects from the main body of the device is set. It is possible to realize, with a simple structure, a structure that can be rotated to a rotation position that does not project from the device body.

A grain drying apparatus according to a third aspect is the grain drying apparatus according to the first or second aspect, wherein the apparatus main body has a pair of projecting members that project outward. The insert hopper is arranged between the pair of projecting members.

In the grain drying apparatus according to the third aspect of the invention, since the stretch hopper is arranged between the pair of projecting members that project outward, the space (space) between the pair of projecting members is used to provide the stretch hopper. You can

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 4 is a longitudinal sectional view taken along the front-rear direction of a circulating grain drying device 10 according to an embodiment to which the grain drying device of the present invention is applied. In FIG. 5, the circulation type grain drying device 10 is shown in FIG.
It is shown in a longitudinal section along the line. Further, FIG. 6 shows the circulating grain drying device 10 in a cross-sectional view taken along line 6-6 of FIG.

Circulating grain drying apparatus 1 according to the present embodiment
Reference numeral 0 denotes a machine body 12 that constitutes the main body of the apparatus, and the machine body 12 has a rectangular parallelepiped box shape that is high in the vertical direction and long in the front and rear directions.
The upper part of the machine body 12 is a grain tank 14, and the grain K (for example, paddy) is stored in the grain tank 14.

In the lower part of the body 12, a pair of exhaust passage partition walls 1
6 are provided, and each exhaust passage partition 16 has air permeability. Each of the exhaust passage partition walls 16 is bridged between the front plate and the rear plate of the machine body 12, and is inclined downward from each side plate of the machine body 12 toward the center of the machine body 12 in the left-right direction. The exhaust passage partition 16 has a funnel shape.

Inside the fuselage 12 of the pair of exhaust passage partition walls 16, a wind tunnel plate 18 is provided, and the wind tunnel plate 18 is breathable and has a substantially rhombic tubular shape. Wind tunnel plate 1
8 is bridged between the front plate and the rear plate of the machine body 12, and the lower side of the wind tunnel plate 18 is provided with the opposing exhaust passage partition walls 16
And the inside of the wind tunnel plate 18 is a hot air passage 22. A rectangular outside air inlet 26 is formed on the front plate of the machine body 12 corresponding to the hot air passage 22.
6 communicates with the hot air passage 22.

Between the upper side of the wind tunnel plate 18 and the upper part of each exhaust passage partition wall 16, an air guide passage partition wall 32 is provided, and each air guide passage partition wall 32 has air permeability and is substantially It is shaped like a rhombus. Each air duct partition 32 is bridged between the front plate and the rear plate of the machine body 12, and each air duct partition 32 forms an air duct 34. The lower side of each air duct partition 32 is parallel to each opposing air duct partition 16, and
It is parallel to the wind tunnel plate 18 facing it.

The wind tunnel plate 1 is provided on the left and right sides of the wind tunnel plate 18.
8 and the air duct partition 32, between the air duct partition 32 and the exhaust duct 16, and between the wind tunnel plate 18 and the exhaust duct 16, a grain downflow passage 36 is formed. Therefore, the grain K stored in the grain tank 14 flows down (flows) to each grain flow path 36.

A cylindrical shutter drum 38 is provided between the lower ends of the grain flow-down passages 36, and the shutter drum 38 substantially closes the lower ends of the grain flow-down passages 36.
It is bridged between a front plate and a rear plate of the machine body 12 and is rotatable about its axis. On the outer circumference of the shutter drum 38, a pair of rectangular slits 40 elongated in the axial direction are formed. One slit 40 is arranged on the front side of the outer circumference of the shutter drum 38, and the other slit 40 is It is arranged on the rear side of the outer periphery of the shutter drum 38 and on the opposite side of the one slit 40 in the circumferential direction. Here, since the shutter drum 38 rotates and each slit 40 faces the lower end of each grain flow-down passage 36, the grain K in each grain flow-down passage 36 flows into the shutter drum 38 via each slit 40, Further, as the shutter drum 38 rotates and each slit 40 faces downward, the grain K flowing into the shutter drum 38 is discharged downward.

Below the pair of exhaust passage partition walls 16, there is provided a pair of tension flow plates 42, and each tension flow plate 42 is
It is bridged between the front plate and the rear plate of the machine body 12.
The pair of stretch-flow plates 42 are inclined downward from the side plates of the machine body 12 toward the center of the machine body 12 in the left-right direction, and have a funnel shape. Further, an exhaust passage 44 is formed between each stretched flow plate 42 and each exhaust passage partition wall 16.

At the bottom of each side plate of the machine body 12, a long plate-shaped side hopper 46 is provided. The side hoppers 46 are rotatable around their lower ends so that they can be opened and closed. When the side hoppers 46 are opened, the grain K can be pulled into the machine body 12. . At this point, the grain K discharged from the shutter drum 38 or the grain K stretched from the side stretch hopper 46 flows down between the lower ends of the respective stretching flow plates 42.

A lower screw conveyor 48, which constitutes the main body of the apparatus, is provided as a projecting member between the lower ends of the stretched flow plates 42. The rear end of the lower screw conveyor 48 is fixed to the rear plate of the machine body 12. In addition, the front portion projects forward (outside) from the front surface of the body 12 below the furnace case 70 described later. The lower screw conveyor 48 has a long transport gutter-shaped lower transport gutter 50, and the upper surface of the lower transport gutter 50 outside the machine body 12 is closed. The lower transfer gutter 50 in the machine body 12 is communicated with the exhaust path 44, and the grain K that has reached between the lower ends of the respective siding flow plates 42 flows down into the lower transfer gutter 50. Lower screw 5 in lower transport gutter 50
2 is provided, and the grain K that has flowed into the lower transport gutter 50.
Is conveyed forward by the lower screw 52. A plurality of scraping plates 84 are provided at the front end of the lower screw 52, and the grain K transported to the front end in the lower transport trough 50 is transported to the right by each scraping plate 84.

Between the lower transfer gutter 50 and the furnace case 70 outside the machine body 12, a front-facing hopper 86 is installed as a hopper. The front hopper 86 has a funnel shape (cylindrical shape) of an inverted square pyramid, and the front hopper 8 is
While the entire upper surface of 6 is opened to serve as a grain inlet 88,
The lower surface of the front stretched hopper 86 is circularly opened to form a grain outlet 90.

As shown in FIG. 3, a rotary plate 92 in the form of an annular plate is provided at the lower end of the front stretched hopper 86,
The inner peripheral edge of the rotary plate 92 is connected to the peripheral edge of the grain outlet 90. A plurality of fixed plates 94 are provided around the rotary plate 92 on the upper surface of the lower transport gutter 50 outside the machine body 12, and a portion of each fixed plate 94 on the side opposite to the rotary plate 92 is provided on the upper surface of the lower transport gutter 50. It is fixed. Rotating plate 9 of each fixed plate 94
The second-side portion is L-shaped in cross section and protrudes upward. The rotation plate 92 is disposed between the rotation plate 92-side portion of each fixed plate 94 and the upper surface of the lower transport gutter 50, so that the front surface tension is increased. An insert hopper 86 is rotatably attached to the upper surface of the lower transport gutter 50. Further, the grain outlet 90 of the front stretched hopper 86 is communicated with the front end of the lower transport gutter 50.

As shown in FIG. 1, one side surface 86A of the front-facing hopper 86 is inclined more vertically than the other side surfaces, and the center of the grain inlet 88 of the front-facing hopper 86 is at the center of the front-facing hopper 86. It is arranged at a position deviated from the rotation center line of 86 (the central axis of the grain outlet 90). This allows
By rotating the front stretched hopper 86 to the rotation position where the one side surface 86A is directed to the left, the front stretched hopper 86 does not project forward from the furnace case 70, and the lower transfer gutter 50 and the furnace case 70 are Is housed between.

On the other hand, as shown in FIG. 2, the front side hopper 86 (grain inlet 88) is moved from the furnace case 70 by rotating the front side hopper 86 to a rotation position where one side surface 86A is directed forward. It projects forward. Accordingly, when the grain K is supplied to the front-side hopper 86 from the grain inlet 88, the grain K is stretched from the inside of the front-side hopper 86 through the grain outlet 90 to the front end of the lower transport gutter 50, and further, It is conveyed to the right by each scraping plate 84.

As shown in FIGS. 4 to 6, in front of the machine body 12, an elevator 54, which constitutes the main body of the apparatus, is erected on the right side, and the upper part of the elevator 54 projects above the top plate of the machine body 12. ing. An endless belt 56 is arranged in the elevator 54, and the bucket 5 is attached to the endless belt 56.
8 are attached at regular intervals. The lower end of the elevator 54 is communicated with the front end of the lower transport gutter 50, and is conveyed rightward from the lower screw conveyor 48 (the front end of the lower transport gutter 50) to the lower end of the elevator 54 by each scraping plate 84. The accumulated grain K is lifted and conveyed to the upper end in the elevator 54 by the bucket 58 by the rotation of the endless belt 56.

An upper screw conveyor 60 is provided at the upper end of the machine body 12, and the upper screw conveyor 60 is
The rear end is located directly below the center of the top plate of the machine body 12,
The front part projects from the front plate of the body 12. The upper screw conveyor 60 has a long gutter-shaped upper transport gutter 62, and the rear end lower surface of the upper transport gutter 62 is open. The front end of the upper transport gutter 62 is connected to the upper end of the elevator 54, and the grain K transported to the upper end of the elevator 54 flows down to the front end of the upper transport gutter 62. An upper screw 64 is provided in the upper transport gutter 62, and the grain K that has flowed down to the front end in the upper transport gutter 62 is transported rearward by the upper screw 64. The front end of the upper transport gutter 62 can communicate with the discharge pipe 66, and the front end of the upper transport gutter 62 is connected to the discharge pipe 6.
When it is communicated with 6, the grain K flowing down to the front end in the upper transport gutter 62 is discharged from the circulation type grain drying device 10 through the discharge pipe 66.

Below the rear end of the upper screw conveyor 60, a disc-shaped equalizer 68 is rotatably provided.
The grain K transported to the rear end of the upper screw conveyor 60 (the rear end in the upper transport trough 62) flows down to the upper surface of the rotating equalizer 68, and is evenly dispersed into the grain tank 14 by the centrifugal force. To be distributed.

At the lower part of the front surface of the machine body 12, a rectangular parallelepiped box-shaped furnace case 70 which constitutes the main body of the apparatus is provided as a protruding member at the left side portion so as to project to the front (outside), and the front plate of the furnace case 70 is provided. A plurality of slit-shaped outside air inlets 72 are formed. The rear surface plate of the furnace case 70 is partially opened, and the inside of the furnace case 70 communicates with the outside air inlet 26. In addition, a burner 76 as hot air generating means is provided in the furnace case 70.

A blower mount 78 in the shape of a rectangular parallelepiped box is provided on the lower rear surface of the machine body 12, and the inside of the blower mount 78 is communicated with each of the exhaust paths 44. Blower mount 7
A blower 80 is attached to the rear surface of 8, and by driving the blower 80, outside air is sucked and flowed into the hot air passage 22 from the outside air inlet 72 through the inside of the furnace case 70 and the outside air inlet 26, and , Windmill plate 18, each grain flow down path 3
6, each exhaust passage partition 16, each exhaust passage 44, and the inside of the blower mounting base 78 are sucked and blown by the blower 80 to be discharged to the outside of the circulating grain drying device 10. Further, the outside air that is blown above the grain flow-down passages 36 passes through the air guide passage partition walls 32 and the air guide passages 34.

Here, from the outside air inlet 72 to the furnace case 7
The outside air introduced into 0 is turned into hot air (dry air) by the burner 76 and blown to each grain downflow passage 36,
The grain K in each grain flow-down path 36 is dried.

At the lower front portion of the fuselage 12, a furnace case 70 is provided.
An operation panel 82 is provided immediately above. Control panel 8
2 is provided with various operation switches (not shown) such as a stake operation switch and a drying operation switch. By operating various operation switches of the operation panel 82, the circulation type grain drying device 10 is It is a configuration that is operated and controlled.

Next, the operation of this embodiment will be described.

In the circulation type grain drying device 10 having the above-mentioned configuration, when the squeeze operation switch of the operation panel 82 is operated,
The lower screw conveyor 48, the elevator 54, the upper screw conveyor 60, and the leveling machine 68 are driven, and then the side loading hopper 46 is opened to load the grain K into the machine body 12. The grain K stuck in the airframe 12 is the sink plate 42.
It is guided to the lower screw conveyor 48, and is stretched (stored) from the lower screw conveyor 48 through the elevator 54, the upper screw conveyor 60, and the equalizer 68 into the grain tank 14 and each grain flow down path 36. After the grain K stake-in processing is completed, the grain K stake-in operation is stopped by operating the operation panel 82 or automatically.

When the drying operation switch of the operation panel 82 is operated, the entire circulating grain drying device 10 is operated,
The shutter drum 38, the lower screw conveyor 48, the elevator 54, the upper screw conveyor 60, the leveling device 68, and the blower 80 are driven, and the burner 76 is ignited.

As a result, the grain K stored in the grain tank 14 passes through each grain flow-down path 36, the shutter drum 38, the lower screw conveyor 48, the elevator 54, the upper screw conveyor 60, and the leveling machine 68, and enters the grain tank 14. It is returned and circulated in the circulating grain drying device 10.

Further, when the blower 80 is driven, hot air is generated by the burner 76 from the outside air sucked and introduced into the furnace case 70 from the outside air inlet 72, and this hot air is introduced into the outside air inlet 26, the hot air passage 22 and the wind tunnel plate 18. Grain K in each grain flow-down passage 36 is sucked and blown to each grain flow-down passage 36 through
The grain K is dried by absorbing the water. Grain K
After absorbing the moisture, the hot air is sucked and blown by the blower 80 through the respective exhaust passage partition walls 16, the respective exhaust passages 44, and the inside of the blower mount 78, and is discharged to the outside of the circulating grain drying device 10.

The grain K is circulated in the circulating grain drying device 10 as needed until the desired moisture content is reached,
Further, if necessary, the driving of the shutter drum 38 is stopped and the lower screw conveyor 48, the elevator 54,
The drive of the upper screw conveyor 60 and the leveling machine 68 is continued, and all the grains K are stored in the grain tank 14 and the grain flow-down paths 36.
When the grain K is stored, the drying process of the grain K is completed.

After the grain K has been dried, the shutter drum 3 is operated by operating the operation panel 82 or automatically.
8, lower screw conveyor 48 and elevator 54 (further upper screw conveyor 60 and leveling machine 68 if necessary)
Is driven, and the front end of the upper transport gutter 62 is at the discharge pipe 6
By being connected to 6, all the grains K are discharged from the circulation type grain drying device 10 through the discharge pipe 66.

By the way, due to the space of the work place where the circulation type grain drying device 10 is installed, both sides of the hopper 46 are stretched.
It may not be possible to open by rotating. In such a case, the squeeze operation switch of the operation panel 82 is operated in the same manner as described above, and the lower screw conveyor 48, the elevator 54,
By driving the upper screw conveyor 60 and the leveling machine 68, as shown in FIG. 2, the front side hopper 86 is rotated to a rotational position where one side face 86A faces forward, so that the front side hopper 86 is removed from the furnace case 70. Make it project forward. After that, when the grain K is supplied from the grain inlet 88 to the front loading hopper 86, the grain K is loaded from the inside of the front loading hopper 86 through the grain outlet 90 into the lower screw conveyor 48, and the elevator from the lower screw conveyor 48. 54,
It passes through the upper screw conveyor 60 and the equalizer 68, and is stretched (stored) in the grain tank 14 and each grain flow-down path 36. After the grain K stake-in process is completed, the grain K stake-in operation is stopped by the operation of the operation panel 82 or automatically as described above.

Here, at the time of operations other than the work of loading the grain K into the machine body 12 (in the grain tank 14 and each grain flow path 36) (drying of the grain K, discharge work, etc.) (front loading hopper) 86
When not using), as shown in FIG. 1, by rotating the front hopper 86 to a rotational position where one side face 86A faces leftward, the front hopper 86 does not project from the furnace case 70. It is housed between the furnace case 70 and the lower screw conveyor 48. As a result, it is possible to prevent the front stretched hopper 86 from getting in the way.

Further, since the front sloping hopper 86 is disposed between the furnace case 70 projecting forward of the machine body 12 and the lower screw conveyor 48 (lower transfer gutter 50), the front case hopper 86 is disposed between the furnace case 70 and the lower screw conveyor 48. The front stretched hopper 86 can be provided by utilizing the space.

In addition, the grain inlet 88 of the front loading hopper 86
Since the center of the front hopper 86 is located at a position displaced from the center line of rotation of the front hopper 86, the front hopper 86 is attached to the furnace case 7
It is possible to realize a structure capable of rotating between a rotation position protruding from 0 and a rotation position not protruding from the furnace case 70 with a simple and space-saving structure.

In the present embodiment, the center of the grain inlet 88 of the front hopper 86 is arranged at a position displaced from the rotation center line of the front hopper 86. The center of the grain inlet of the front hopper is located on the rotation center line of the front hopper, and the grain inlet of the front hopper is not circular (for example, rectangular or oval).
It may be configured as.

Further, in the present embodiment, the rotation center line of the front stake hopper 86 is parallel to the vertical direction. However, the rotation center line of the front stake hopper (strap hopper) is set in another direction ( For example, the configuration may be parallel to the horizontal direction such as the horizontal direction).

[0050]

In the grain drying apparatus according to the first aspect of the present invention, when the work other than the work of loading the grain into the device main body is performed, the tension hopper is rotated to a rotation position that does not project from the device main body. It is possible to prevent the embedded hopper from getting in the way.

In the grain drying device according to the second aspect, since the center of the grain inlet of the stake hopper is arranged at a position displaced from the center line of rotation of the stake hopper, the rotation position where the stake hopper projects from the main body of the device is set. It is possible to realize, with a simple structure, a structure that can be rotated to a rotation position that does not project from the device body.

In the grain drying apparatus according to the third aspect of the invention, since the tension hopper is arranged between the pair of projecting members, the tension hopper can be provided by utilizing the space between the pair of projecting members.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a front cover hopper is rotated to a rotation position where it does not project from a furnace case in a circulation type grain drying device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the front cover hopper is rotated to a rotation position projecting from the furnace case in the circulation type grain drying device according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a front hopper and a lower screw conveyor in the circulating grain drying device according to the embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view taken along the front-rear direction of the circulating grain drying device according to the embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view taken along line 5-5 of FIG. 4 of the circulation type grain drying device according to the embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along the line 6-6 of FIG. 5 of the circulation type grain drying device according to the embodiment of the present invention.

FIG. 7 is a perspective view of a conventional circulating grain drying device.

[Explanation of symbols]

10 Circulating grain drying equipment (grain drying equipment) 12 Airframe (device body) 48 Lower screw conveyor (apparatus body, protruding member) 54 Elevator (apparatus body) 70 Furnace case (apparatus body, protruding member) 76 burner (hot air generating means) 86 Front stake hopper (strap hopper) 88 grain entrance K grain

Claims (3)

[Claims] 1. A rotation protruding from the apparatus body, which is formed in a tubular shape and is provided outside the apparatus body, and is rotatable between a rotation position protruding from the apparatus body and a rotation position not protruding from the apparatus body. A hopper that is capable of staking grain into the device body by being rotated to a position, and a device that is provided in the device body and generates hot air from the outside air introduced into the device body. A grain drying apparatus comprising: a hot air generating unit that dries the grain stuck inside the body. 2. The grain drying apparatus according to claim 1, wherein the center of the grain inlet of the stake hopper is arranged at a position displaced from the center line of rotation of the stake hopper. 3. The apparatus body according to claim 1, further comprising a pair of projecting members that project outward, and the tension hopper is disposed between the pair of projecting members. 2. The grain drying device according to 2.