JPH0625826Y2 - Grain drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a grain drying device for drying grains with dry air.

[Prior Art] In order to dry a grain, a circulation type grain drying device is used in which the grain is circulated and fluidized in the machine body to feed dry air to dry the grain.

In this type of circulatory grain drying apparatus, ventilation holes are formed and partition walls are installed so as to face each other between the front plate and the rear plate. A grain downflow path is defined between the path and the exhaust path. In addition, a grain tank is formed above the grain flow path so as to communicate with the grain flow path.

The grain flow-down path is bent to the left or right at a position near the lower end thereof and then connected to the shutter drum. By rotating the shutter drum alternately in the forward and reverse directions, the grains in the grain flow path can be fed downward. For this reason, the grains in the grain tank are allowed to naturally flow down while pressing the gap wall in the grain flow path as the shutter drum rotates.

Further, a burner for generating a dry air and a blower are arranged in this grain drying device, and the dry air generated by the burner for producing a dry air is sucked by the blower and sent from the wind guide passage to the grain downflow passage. , Is exhausted from the exhaust passage. At this time, the grain in the grain flow path is dried.

Now, as shown in FIG. 4 or FIG.
Is a flange portion 11 formed at both ends in the front-rear direction.
It was fixed by fitting 2 and 113 into the rails 116 and 118 attached to the front plate 114 and the rear plate.

[Problems to be Solved by the Invention] However, the rails 116 and 118 and the breathable partition wall 1
The mounting flange portions 112 and 113 of the upper and lower parts 10 are relatively long in the vertical direction. Therefore, when assembled, the air-permeable partition wall 110 is slightly elastically deformed and bent, so that the relative positions of the two are displaced and the flange portion of the air-permeable partition wall 110 is displaced. However, it is not easy to fit the rails 112 and 113 into the rails 116 and 118 reliably at a time, and the assembling performance is poor.

Further, in this conventional assembly structure using rails, there is a problem that paddy and straw debris are easily caught in the rails, and these unnecessary substances remain inside even after the drying process.

In view of the above facts, the present invention has an object to obtain a grain drying device that does not trap rice and straw debris in the connecting portion of the air-permeable partition forming the grain downflow path and can be easily assembled. .

[Means and Actions for Solving Problems] In the grain drying device according to the present invention, a pair of air-permeable partition walls facing each other are laid between the front wall of the machine body and the rear wall of the machine body, and the grain is provided in the gap between the facing surfaces. A grain drying apparatus that feeds dry air while flowing down to perform a drying process, wherein both ends in the longitudinal direction of the pair of air-permeable partition walls are integrally connected to each other and the upper and lower sides are opened by the pair of air-permeable partition walls. A pair of connecting members that form a box-shaped downflow path unit, and a fixing unit that fixes the connecting members to the machine body front wall and the machine body rear surface wall.

Therefore, the breathable partition wall connected by the connecting member can be fixed only by fixing the connecting member using the fixing means. As a result, the workability does not require skill and the assemblability of the grain drying device is improved. Further, since the connecting portion between the air-permeable partition wall and the connecting member can be easily made smooth during manufacture, paddy and straw waste do not get caught and remain.

[Embodiment] FIG. 2 shows a schematic overall longitudinal sectional view of a grain drying device 10 according to the present invention, and FIG. 3 shows a schematic overall transverse sectional view of the grain drying device 10.

The fuselage 12 includes a pair of left and right side walls 14, a front wall 16 and a rear wall 1.
8. The ceiling wall 20 and the bottom wall 22 form a vertically high box shape.

The upper inner cavity of the machine body 12 is a grain tank 24, and the lower portion is a drying section 26. A grain downflow path 30 is formed in the drying section 26 by a partition wall 28. As shown in FIGS. 1 to 3, the partition wall 28 has a plurality of ventilation holes and has air permeability, and both longitudinal end portions of a pair of opposing partition walls 28 are connected by the connecting members 32. A box-shaped downflow unit 34 having an open top and bottom as a whole is configured. Partition wall 28 in this downflow unit 34
The gap between the two facings is the grain downflow path 30.

Attachment fittings 33 that are bent downward toward the outside are fixed to the upper ends of the partition walls 28. Further, a mounting member 35 having an inverted V-shaped cross section is fixed to each lower end of the partition wall 28.

On the outer surface of the connecting member 32, a plurality of wedge receiving portions 36 having a U-shaped cross section are stamped and formed in a row in the vertical direction. After the wedge receiving portion 36 is inserted into the through hole 38 formed in the front wall 16 and the rear wall 18, the wedge 40 is fitted and fixed.

As shown in FIGS. 2 and 3, the front wall 16 and the rear wall 18
Downstream passage units 42, 44, and 46 having the same structure as the downstream passage unit 34 are provided at equal intervals. A head partition wall 48 is disposed above the partition walls 28 of the flow-down path unit 34 and the flow-down path unit 42 located at the center, which are opposed to each other. The head partition wall 48 is a non-breathable member having an inverted V-shaped cross section, and mounting metal fittings 50 fitted to the mounting metal fittings 33 of the partition wall 28 are fixed to both lower end portions. This head bulkhead 48
After being slightly elastically deformed in a direction in which the fittings 50 approach each other, the fittings 50 are fitted to the fittings 33 so as to be connected to the partition wall 28. Further, similarly to this, the downflow unit 34 and the downflow unit 44
And a head partition wall 52 and a head partition wall 54 at the upper part between the downflow unit 42 and the downflow unit 46, respectively.
Are connected. Here, the downflow unit 3
4, a portion surrounded by the flow-down passage unit 42 and the head partition wall 48 serves as an exhaust passage 56. Further, a part surrounded by the downflow unit 34, the downflow unit 44 and the head partition 52, and a part surrounded by the downflow unit 42, the downflow unit 46 and the head partition 54 are the air guide 58 and the air guide, respectively. It is 60.

A head partition 62 is provided between the upper portion of the downflow unit 44 and the side wall 14 and between the upper portion of the downflow unit 46 and the side wall 14.
The head partition wall 64 is arranged so as to be continuous with the inner surface of the side wall 14. As with the mounting bracket 50, a mounting bracket 66 that fits into the mounting bracket 33 is fixed to the lower ends of the head partition 62 and the head partition 64.
3 is fitted to each partition wall 28 of the downflow unit 44 and the downflow unit 46. Here, the downflow unit 44, the head partition 62
The portion surrounded by the side wall 14 and the side wall 14, and the portion surrounded by the downflow path unit 46, the head partition wall 64, and the side wall 14 are an exhaust path 68 and an exhaust path 70, respectively.

Below the flow-down unit 34 and the flow-down unit 44, like the partition wall 28, the guide walls 72 that are bridged between the front wall 16 and the rear wall 18 are bent so that the guide paths 74 approach each other. Has been formed. A mounting bracket 76 having an inverted V-shaped cross section is fixed to the upper end portion of the guide wall 72 so as to fit with the mounting bracket 35 of each partition wall 28. Therefore, after the fitting 35 is fitted and connected to the fitting 76, the grain flow-down passage 30 and the guide passage 74 form a continuous grain passage.

Further, similarly to this, a guide wall 72 is arranged below the downflow unit 42 and the downflow unit 46, and a guide path 74 is formed to be bent so as to be continuous with each grain downflow path 30.

At the lower end of each guide path 74, a shutter drum 78 and a shutter drum 80 are arranged.

The shutter drum 78 and the shutter drum 80 have a hollow cylindrical shape with a horizontal axis, and a slit-like notch having a predetermined width dimension along the axial direction is formed in a part of the outer circumference. The shutter drum 78 and the shutter drum 80 rotate in the forward direction around the axis and the notches face the guide passages 74, so that the grains in the guide passages 74 flow into the respective shutter drums through the notches and further in the opposite direction. The grain that has flowed in is fed out by rotating the notch so that the notch faces downward.

Therefore, the shutter drum 78 and the shutter drum 80
The grains in the grain tank 24 are fed downward in accordance with the rotation of, and naturally flow down in the grain flow-down path 30 sequentially.

Below each of the shutter drums, a stretched flow plate 82 which is tapered downward toward the central portion between the side walls 14 is arranged. For this reason, the grains discharged from the respective shutter drums are conveyed in a line by the stretch-flow plate 82 to approximately the center between the side walls 14.

At the lower end of the stretch board 82, a lower screw conveyor 84 for conveying grain is arranged. The lower screw conveyor 84 is arranged over the longitudinal direction of the grain drying device 10, and the spiral blades on the outer periphery of the lower grain conveyor convey the grain entering between them in the direction of the front wall 16.

A bucket conveyor 86 is erected on the outer side of the front wall 16 at the end portion of the lower screw conveyor 84 in the grain transport direction so as to receive the transported grain.

In this bucket conveyor 86, buckets for grain transportation are attached to the endless conveyor at regular intervals so that the grain transported by the lower screw conveyor 84 can be lifted and transported to the uppermost portion of the grain drying device 10. Has become.

One end of an upper screw conveyor 88 corresponds to the upper end of the bucket conveyor 86, and is adapted to receive the grain that has been lifted and conveyed. The other end of the upper screw conveyor 88 extends to the central portion in the longitudinal direction of the grain drying device 10, and a rotary equalizer 90 having a vertical axis is arranged immediately below the other end of the upper screw conveyor 88. There is.
Therefore, the grain conveyed by the upper screw conveyor 88 to the upper central portion of the grain drying device 10 falls onto the rotary type leveling machine 90, and when the rotary type leveling machine 90 rotates, the grain tank 24 in the machine body 12 is centrifugally moved. Will be evenly distributed.

An extension hopper 92 is provided at the bottom of the side wall 14,
Grains can be put into the inside of 2.
The grain fed from the feeding hopper 92 is conveyed by the feeding flow plate 82 similarly to the grain fed by the shutter drum 78 and the shutter drum 80.

As shown in FIG. 3, a burner mount 96 that forms an air guide passage 94 is mounted on the front wall 16, and a burner 98 for generating dry air is disposed on the burner mount 96. The air guide passage 94 is the air guide path 58 in the airframe 12,
It communicates with one longitudinal end of 60. For this reason, the dry air generated by the burner 98 is sent to both the air guide paths 58 and 60 through the air guide communication path 94.

A blower mount 102 that forms an exhaust passage 100 is attached to the rear wall 18, and a blower 104 for sucking and discharging air is connected to the blower mount 102. The exhaust passages 56, 68 and 70 are connected to the exhaust passage 100.
Is in communication with. For this reason, the blower 104 sucks the dry air from the burner 98 and sends the dry air from each air duct to the grain downflow path 30. The sent dry air absorbs the moisture of the grain in the grain downflow path 30. After drying, the air is exhausted to each air exhaust passage and further exhausted to the outside of the machine body 12 via the air exhaust communication passage 100.

Next, the operation of the grain drying device 10 having the above configuration will be described.

When assembling the machine body 12 of the grain drying device 10, the downflow unit 34, on the guide wall 72 forming the guide path 74,
42, 44 and 46 are placed in order. In this case, the guide wall 7
Each downflow path unit can be connected only by fitting the mounting bracket 35 of the partition wall 28 to the second mounting bracket 76. After that, the wedge receiving portion 36 formed on the connecting member 32 is inserted into the through hole 38 formed in the front wall 16 and the rear wall 18, and then the wedge 40 is fitted therein, whereby each of the downstream passage units is assembled. It will be attached. As described above, each of the downstream passage units can be assembled only by an easy work of fitting the wedge 40 without performing a complicated assembling work using a bolt, a nut, or the like.

After assembling each flow down unit, each head bulkhead is further assembled on top of them. Also in this case, the mounting member 50 can be assembled simply by fitting the mounting member 50 to the mounting member 33 of each partition wall 28, and the work becomes easy.

After the assembly of the machine body 12 is completed, the grain is put in and a drying process is performed.

In order to load the grain, the circulation system devices (the lower screen conveyor 84, the bucket conveyor 86, the upper screen conveyor 88, the rotary equalizer 90) of the grain drying device 10 are driven. Then, the pull-in hopper 92 on the lower side surface of the grain drying device 10 is opened to pull the grain into the machine body 12. The grain that has been stretched is guided by the stretching flow plate 82 and is conveyed in a line to the lower center of the machine body 12 (the position where the lower screw conveyor is disposed).

The stretched grain is conveyed to the bucket conveyor 86 side by the lower screw conveyor 84. The conveyed grain is lifted and conveyed to the uppermost part of the machine body 12 by the bucket conveyor 86.

The grain lifted and conveyed to the upper part of the machine body 12 by the bucket conveyor 86 is sent to the upper center part of the machine body 12 by the upper screw conveyor 88, and stored in the grain container 24 in the machine body by the rotary type leveling machine 90.

Further, here, when the shutter drum 78 and the shutter drum 80 are rotated after the completion of the tightening, the grains are sequentially fed out.

As the grain is fed by the rotation of the shutter drum 78 and the shutter drum 80, the grain in the grain tank 24 naturally flows down in each grain flow path 30. In this case, the assembly portion of each downflow unit, that is, the wedge receiving portion 36 formed in the connecting member 32 and the wedge 40 fitted thereto are located outside without being exposed to the inside of the grain downflow path 30. , The natural flow of grains is not hindered.

Thereafter, when the burner 98 connected to the airframe 12 is ignited and the blower 104 is driven, the dry air is blown by the air guide passage 9
After that, it is sent to the air guide passage 58 and the air guide passage 60.

The dry air blown into the air guide path 58 and the air guide path 60 passes through the partition wall 28 of each of the downflow path units and is directly supplied to the grains in the grain downflow path 30. The dry air that has absorbed the moisture of the grain flows into the air exhaust passage 56, the air exhaust passage 68, and the air exhaust passage 70, and is further discharged to the outside of the grain drying device 10 through the exhaust air communication passage 100.

The grain fed out by the shutter drum 78 and the shutter drum 80 after flowing down the grain flow path 30 is conveyed again by the tension flow plate 82 over the lower central portion of the machine body 12 in the longitudinal direction. The conveyed grain is taken out from a grain discharge port (not shown) after the above-described circulation action is repeated in the machine body 12 until the desired moisture content is reached, if necessary.

In this case as well, the wedge receiving portion 36 and the wedge 40 are provided with the grain flow-down path 30.
Because it is located outside without being exposed inside,
The paddle and straw are not caught in this assembly part,
They do not remain in the grain flow-down passage 30 after they have been removed from the grain.

In this embodiment, the wedge receiving portion 36 is integrally formed with the connecting member 32 by stamping, but the present invention is not limited to this, and the wedge receiving portion 36 is bent from a plate material and then welded to the outside of the connecting member 32. It may be configured to be fixed by such as. In this case, the inner wall surface of the connecting member 32 becomes flat, and the grains do not remain in the grain flow-down passage 30, which is more effective.

Further, the fixing of the connecting member 32 to the front wall 16 and the rear wall 18 is not limited to using the wedge 40, and other fixing means such as bolt tightening or riveting can be applied. [Effects of the Invention] As described above, in the grain drying apparatus according to the present invention, a pair of air-permeable partition walls facing each other are laid between the front wall of the machine body and the rear wall of the machine body to dry the grain while letting the grain flow down in the gap between the opposed surfaces. A grain drying device for feeding air to perform a drying process, wherein a box-shaped device in which upper and lower sides of the pair of air-permeable partition walls are integrally connected to each other and the upper and lower sides are opened by the pair of air-permeable partition walls. Since it has a pair of connecting members constituting the downflow unit and fixing means for fixing the connecting members to the machine front wall and the machine rear wall, a connecting portion of the air-permeable partition forming the grain downflow path. It has an excellent effect that it can be easily assembled without any paddy or straw waste being caught.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view showing an assembled state of a grain drying device according to the present invention, FIG. 2 is a schematic overall vertical cross-sectional view of the grain drying device, and FIG. 3 corresponds to line III-III in FIG. FIG. 4 and FIG. 5 are schematic cross-sectional views of the whole grain drying device, showing a conventional example of a partition wall connecting portion. 10 ... Grain dryer, 16 ... Front wall, 18 ... Rear wall, 28 ... Partition wall, 30 ... Grain downflow path, 32 ... Connecting member, 34 ... Downflow path unit, 36 ... Wedge receiving part , 38 ... through hole, 40 ... wedge, 42 ... downflow unit, 44 ... downflow unit, 46 ... downflow unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Furujo 17 shares in Yamamoto Seisakusho Co., Ltd. 813 Tendo Ko, Tendo City, Yamagata Prefecture (56) Bibliographic references Sho 54-40534 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A grain drying device for spanning between a pair of air-permeable partition walls facing each other between a front wall of a machine body and a rear wall of the machine body, for feeding a drying air to dry the grain while letting the grain flow down in the gap between the facing surfaces. In the above, a pair of connecting members constituting a box-shaped flow-down path unit having upper and lower openings by integrally connecting both longitudinal end portions of the pair of air-permeable partition walls and the pair of air-permeable partition walls, A grain drying device comprising: fixing means for fixing the connecting member to the machine front wall and the machine rear wall.