JPH0120862B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method of drying soybean grains by charging harvested soybean grains into a flat box-shaped drying tank with a mesh floor and blowing drying air from below the floor of the tank. In the dryer,
This invention relates to an improvement in a multi-tank type soybean dryer in which initial drying while the moisture content of soybean grains is high and final drying after the moisture content has decreased are performed in separate drying tanks.

To dry soybean grains using a soybean dryer, the soybean grains are placed in a drying tank and heated with hot air (usually
This is done by blowing dry air at a temperature of about 30 degrees Celsius, but if hot air is fed from the beginning to soybean grains that have a high moisture content immediately after harvesting, the soybean grains will crack and deteriorate in quality. Normally, immediately after harvesting, high-moisture soybean grains are dried by supplying air at room temperature (around 20 degrees Celsius), and when the moisture content drops to around 20%, they are dried in another drying tank. Then, hot air is sent to it for final drying until a predetermined moisture content is reached.

Therefore, a soybean dryer has at least two drying tanks: a drying tank for performing initial drying while the moisture content of soybean grains is high, and a drying tank for drying low-moisture soybean grains whose moisture content has decreased. In addition to requiring a tank and a drying air supply path, a means for transporting the soybean grains into and from each of the multiple drying tanks is also required, which increases the equipment cost. There is a problem.

The present invention was developed to solve this problem, and the drying tank for initial drying, the drying tank for finishing drying, and the air guide path for supplying drying air to them are installed in the body of the dryer. It can be installed without significantly increasing the volume, and it has a mechanism that makes it easy to transfer soybean grains from the drying tank for initial drying to the drying tank for final drying, and to take out soybean grains from the drying tank for initial drying. It is an object of the present invention to provide a multi-tank type soybean dryer that can be operated reliably and whose mechanism can be significantly simplified.

To achieve this purpose, the multi-tank type soybean dryer according to the present invention has a box-shaped drying machine with a floor plate formed by a permeable partition wall such as a perforated board or a mesh on the upper part of the machine body. In addition to installing a drying tank, a large number of shutters that open and close like dampers are installed in parallel on almost the entire surface of the floorboard of the drying tank. A flat box-shaped drying tank formed by a bulkhead is mounted so that the floor surface of the drying tank can be switched downwardly toward one side of the aircraft, and an outlet is formed at the end of the downward slope. The bottom of the machine body cavity below the flat box-shaped drying tank is formed as a drying air guide path, and the part of the outer peripheral wall of the machine body that faces the outlet when the flat box-shaped drying tank is tilted is formed. The present invention is characterized in that a grain lifting machine is provided in parallel with the machine body, and has an outlet communicating with the outlet thereof, and loads soybean grains into the drying tank mounted on the upper part of the machine body.

Next, embodiments will be described in detail with reference to the drawings.

1 is a box-shaped body that is long from front to back (left and right in Figure 1), and the four walls 10 and floor plate 11 are made of iron plates to maintain airtightness, and the upper part is an open port 12. It is open to the outside. This upper open port 12 may be surrounded by a top plate or a roof provided with an exhaust port.

2 is a drying tank for initial drying that is installed in the upper part of the inner cavity of the fuselage 1, and by installing a floor plate 20 on a shelf near the upper part of the inner cavity of the fuselage 1, the four circumferential walls of the fuselage 1 are The upper part of 10... is used as a peripheral wall. The floorboard 20 is constructed by installing a large number of reinforcing rails 21, each having a triangular cross section, in parallel at appropriate intervals in the longitudinal direction between the left and right walls 10, 10 of the aircraft body 1. Distance d between 21 and reinforcing rod 21
Inside, a shutter 22 formed of a mesh body is rotated like a damper by a rotary shaft 23 integrally provided in the middle in the width direction (horizontal direction in FIG. 1) of the shutter 22 to open and close the distance d. By placing each shutter 22 in a horizontal position as shown by the solid line in FIG. It functions as a floor plate that supports the grains, and when drying air is supplied from below, the drying air blows upward through the mesh of the mesh forming each shutter 22, Furthermore, by placing each shutter 22 in a vertical position as shown by the chain line in FIG. 1, the soybean grains supported above are allowed to flow downward from between the reinforcing bars 21. There is.
The opening/closing operation of the shutters 22 is performed by connecting one shaft end of the rotating shaft 23 of each shutter 22 pivotally supported on the left and right aircraft walls 10, 10 through an appropriate linkage mechanism, and opening/closing one shutter 22. When operated, each shutter 22 opens and closes in synchronization.

Reference numeral 3 denotes a flat box-shaped drying tank arranged below the drying tank 2 and installed in the inner cavity of the fuselage 1.
... and a floor plate 31 made of a mesh body are formed into a flat box shape, and a support shaft 32 provided at the middle part of the front and rear so as to cross the lower surface of the floor plate 31 from side to side is attached to the left and right walls 10, 10 of the fuselage 1. The lower end of the rear end is supported by a locking part 33 provided on the inner surface of the machine wall 10 on the rear side of the fuselage 1, and is provided on the shaft end of the support shaft 32 protruding from the outer surface of the fuselage 1. By locking the arm 34 with a locking hook appropriately installed on the outer surface of the fuselage 1, the first
As shown by the solid line in the figure, the floor plate 31 is mounted on the aircraft body 1 in a posture along a horizontal surface, and the arm 34 is rotated around the support shaft 32 by removing it from the locking hook and rotating it. As shown by the chain line in FIG. 1, the front end side of the floor plate 31 is shifted to a tilted position in which it is lowered. When the floorboard 31 is in an inclined position, the peripheral wall 30a at the lower end of the slope is pivoted to the upper part of the front end of the left and right peripheral walls 30, 30 by a pivot shaft 35 provided at the upper edge. When the floor plate 31 is in an inclined position, it rotates backward to open the outlet 3a on the rear side of the flat box-shaped drying tank 3.

Reference numeral 4 denotes a drying air guide path formed by directly utilizing the space at the bottom of the inner cavity of the fuselage 1 below the flat box-shaped drying tank 3, and a hot air generating device 5 installed on the rear side of the fuselage 1. The hot air blown from the air outlet 50 is connected to the air outlet 50 of the drying tank 3 through the air permeable floor plate 31 of the flat box-shaped drying tank 3. induce it to blow up. Moreover, when the flat box-shaped drying tank 3 is tilted and rotated around the support shaft 32, the air guide path 4 is used as a space that allows the tilted rotation. The hot air generating device 5 includes a furnace 52 and a blower 5.
1, and its blower 51 is controlled so that it can blow air without operating the furnace 52, thereby blowing outside air into the air guide path 4 to keep it dry at room temperature. It is arranged so that it can be sent as wind.

Reference numeral 6 denotes an outlet provided at the lower part of the machine wall 10 on the front side of the machine body 1 in a part facing the outlet 3a of the drying tank 3 when the flat box-shaped drying tank 3 is in an inclined position. A guide gutter 60 is connected to the inner surface of the wall 10 and is installed to also serve as a support base for supporting the lowered front end of the drying tank 3 when the drying tank 3 is tilted and rotated.A guide gutter 60 is connected to the outer surface of the wall 10. A take-out gutter 61 is connected to the outlet 60 so as to extend to the outside, and a shutter 62 is provided in the form of a door for opening and closing the outlet 3a.

7 is a grain lifting machine (bucket elevator) attached to the machine body 1 in order to push soybean grains into the above-mentioned drying tank 2 installed at the top of the machine body 1. It is installed vertically, and its discharge tube 7
0 communicates with an open port 12 on the top side of the drying tank 2.

8 is the soybean grains taken out from the takeout gutter 61,
A take-out gutter 71 that feeds the grain into the lower inner cavity of the grain lifting machine 7 and is provided so as to be switchable with the discharge tube 70 of the grain lifting machine 7.
A belt conveyor is installed horizontally at the lower part of the front of the machine body 1 so that the grain can be taken out of the machine from a high place via the The conveyor belt 80 is connected and communicated with the bottom lumen of the conveyor belt 80, and guide walls 81 are erected on both sides of the upper surface of the conveyor belt 80.

Next, to explain the function and effect, the multi-tank type soybean dryer configured as described above has high moisture soybean grains immediately after harvested in the drying tank 2 installed on the upper part of the machine body 1, and then Blower 5 of hot air generator 5
1 is activated, the drying air at room temperature, which is the outside air sent into the air guide path 4, is distributed to the drying tank 3, which is a flat box shaped and installed in the fuselage 1, below the drying tank 2. The air blows up from the mesh of the floor plate 31 through the inner cavity of the empty drying tank 3 toward the upper drying tank 2 filled with soybean grains, and through the mesh of the floor board 20 of the drying tank 2, the soybeans It passes through the periphery of the grain and blows through to the opening 12 at the top of the machine body 1.

Therefore, by continuing to operate the blower 51 in this state, the soybean grains placed in the upper drying tank 2 can be dried to a predetermined moisture content by drying air at room temperature. Then, when the moisture content drops to about 20%, if the shutter 22 provided on the floor plate 20 of the drying tank 2 is opened, the soybean grains in the drying tank 2 will be removed from the flat box-shaped drying tank below. 3 and is transferred there.

Next, in this state, if the furnace 52 and blower 51 of the hot air generator 5 are operated to supply dry air (usually hot air of about 30 degrees Celsius) adjusted to a predetermined temperature,
The drying air blown up from the mesh of the floor plate 31 of the drying tank 3 through the air guide path 4 allows efficient drying with a predetermined hot air. At this time, by filling the upper drying tank 2 with soybean grains having a high moisture content, it becomes possible to dry the soybean grains in a state similar to drying by ventilation of air at room temperature.

The soybean grains that have been finished to the desired moisture content by supplying hot air in the flat box-shaped drying tank 3 are then tilted as shown by the chain line in Figure 1. When the drying tank 3 is moved, the drying tank 3 is moved from the outlet 3a formed at the inclined lower end side of the drying tank 3 toward the outlet 6 installed at the lower part of the machine wall 10 of the machine body 1.
The soybean grains inside the machine flow out, and the dried soybean grains can be taken out from the outlet 6.

As explained above, in the device of the present invention,
Drying tank 2 for drying soybean grains with high moisture content
Therefore, the soybean grains can be transferred to the drying tank 3, which performs normal hot air drying, by allowing the soybean grains to fall naturally downward when the shutter 22 is opened, and the soybean grains dried in the drying tank 3 can be taken out from the drying tank 3 itself. Since this can be done by the dump operation by tilting and rotating the grain, the transfer device for transferring and discharging the grains can be significantly simplified.
Furthermore, the drying tank 2 for initial drying and the drying tank 3 for final drying can be arranged vertically in multiple stages and installed in the machine body 1, so that the overall volume of the machine body can be reduced.

In addition, although the means of the present invention is only arranged in two stages, the drying tank 2 and the drying tank 3, in the embodiment, the drying tank 2 for initial drying can be stacked one above the other, such as by providing a double drying tank 2 above and below. The numbers 2 and 3 may be selected as appropriate.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of an apparatus according to an embodiment of the present invention, FIG. 2 is a partially cutaway front view of the same apparatus, and FIG. 3 is a partially cutaway perspective view of the main parts of the same. Explanation of drawing symbols, 1...airframe, 10...aircraft wall,
11...floorboard, 12...open port, 2...drying tank,
20...floorboard, 21...reinforcement beam, d...distance, 2
2... Shutter, 23... Rotating shaft, 3... Flat box-shaped drying tank, 30... Peripheral wall, 30a... Peripheral wall, 3
a... Outlet, 31... Floor plate, 32... Support shaft, 3
3...Locking portion, 34...Arm, 35...Pivot shaft, 4...Air guiding path, 5...Hot air generation device, 50...
...Air outlet, 51...Blower, 52...Furnace, 6...
...Takeout port, 60...Induction gutter, 61...Takeout gutter, 6
2...Shutter, 7...Grain lifting machine (bucket elevator), 70...Discharge cylinder, 71...Takeout gutter,
8...Belt conveyor, 80...Transportation belt, 8
1...Guidance wall.

Claims (1)

[Claims] 1. A drying tank with a floor plate made of permeable partitions such as perforated boards or mesh is installed on the top of the box-shaped machine body, and the floor plate has a large number of damper-like opening/closing units. Shutters are installed in parallel on the entire surface, and below the drying tank there is a flat box-shaped drying tank whose floor is made of permeable partitions such as perforated boards or mesh. It is mounted so that it can be switched to tilt downward toward one side, and an outlet is formed at the downwardly inclined end, and the inner cavity of the machine below the flat box-shaped drying tank is used as an air guide path for drying air. The drying tank is mounted on the upper part of the machine, and has an outlet communicating with the outlet in a part of the outer peripheral wall of the machine body that faces the outlet when the flat box-shaped drying tank is tilted. A multi-tank type soybean dryer characterized by having a grain lifting machine for loading soybean grains installed in parallel to the machine body.