JPS6342193B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an upper conveyor for loading grains on the ceiling of the inner cavity of a box-shaped machine body, a tempering section for storing grains in the upper part, and a conveyor in the lower part. A lower conveyor for grain conveyance is provided, and a plurality of grain flow channels are provided in parallel on the left and right, the upper end communicating with the tempering section and the lower end communicating with the lower conveyor in the middle part, and hot air is provided to supply hot air to them. This invention relates to an improvement of a grain dryer in which a passage and an exhaust passage are arranged in parallel.

The grain dryer of the above type is used in parallel inside the machine when the amount of grain to be dried is significantly less than the rated capacity of the tempering section which serves as a storage section for the grains loaded into the machine. By switching to a state in which grains flow into and circulate only in a specific grain flow path among the multiple grain flow paths installed, the grain flows from the tempering section to the grain flow path and returns to the tempering section again. Adjustments can be made to reduce the amount of time the grains are exposed to hot air during grain circulation.
Therefore, with this changeover, when the amount of grain packed is small, the time spent exposed to hot air during circulation operation increases, resulting in rapid drying and the occurrence of shell cracking. Be able to avoid it.

By the way, in the past, it was possible to switch to a state where grains flow only into a specific grain flow path among a plurality of grain flow paths arranged in parallel on the left and right in the machine body. As stated in Japanese Utility Model Application Publication No. 55-89988, a regulating plate is provided below the discharge port of the upper conveyor provided in the ceiling of the interior of the machine to regulate the falling direction of the grains discharged from the discharge port. As a result, the falling direction of the grains being fed into the tempering section is directed to a specific grain flow path among the grain flow paths that are parallel on the left and right and communicate with the bottom of the tempering section. I try to do it by doing this.

However, this means leaves the communication between the tempering section and the parallel grain flow path as is;
Since only the falling direction of the grains released into the tempering section is changed, when the grains guided by the regulating plate fall through the tempering section and head toward the specified grain flow path,
This causes grains to scatter and flow into an unspecified grain flow path, and although it is fine when the amount of filling is very small enough to fill the grain flow path, it may accumulate in the tempering area. When the amount of grains increases, there is a problem in that the accumulated grains collapse and flow into an unspecified grain flow path, making it uncertain to identify the grain flow path.

From this, in order to identify the grain flow route,
It is necessary to equip the grain flow path with a shutter that shuts off the grain refining section. However, installing such a shutter inside the aircraft not only complicates the construction of the aircraft, but also creates another problem in that it requires a large number of components.

The present invention has been made in order to solve the above-mentioned problems occurring in the conventional means. To provide a new means for equipping a shutter for making only a specific grain flow path communicate with the tempering section without increasing the number of constituent members. The purpose is to

As a means for achieving this object, the present invention provides an upper conveyor for loading grains on the ceiling of the inner cavity of a box-shaped machine body, and a tempering section for storing grains in the upper part. A lower conveyor for grain conveyance is provided at the bottom, and a plurality of grain flow channels are provided in parallel on the left and right in the middle part, the upper end of which communicates with the tempering section and the lower end of which communicates with the lower conveyor. In a grain dryer in which a hot air passage supplying hot air and an air exhaust passage are arranged in parallel, a machine wall side plate of a portion of the side wall of the machine body that becomes the side wall of the tempering section is provided on the upper edge side thereof. It is mounted on the fuselage so that it can rotate freely toward the inside of the fuselage using a moving shaft, and when it rotates inward, the lower edge comes into contact with the bulkhead of the hot air duct installed inside the fuselage, and it moves outward from the hot air duct. The present invention proposes a grain dryer characterized in that it is formed so as to function as a shutter that shuts off a grain flow path located in the grain refining section.

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

In FIG. 1, 10 is a box-shaped body of the grain dryer 1, 5 is a hot air generating device installed on the front of the body 10, 7 is a hopper for tensioning, and 8 is on the rear side of the body 10. Elevator to be installed vertically, 9 is the fuselage 10
The shutter for blocking the grain flow path is shown, which is composed of the machine wall side plate 10c.

As shown in FIGS. 3 to 5, the body 10 is provided with a tempering section 2 for storing grains in the upper part of the inner cavity, and in the middle part of the body 10 below the tempering section 2, Ventilation drying section 3 for blowing drying air onto grains
A lower part of the machine body 10 below the ventilation drying section 3 is provided with a lower conveyor 4 for carrying out the grains that are exposed to the drying wind and carried out of the machine. The above-mentioned elevator 8 is installed on the ceiling of the cavity.
An upper conveyor 20 for feeding the grains lifted into the tempering section 2 is installed along the longitudinal direction of the machine body 10.

The ventilation drying section 3 provided in the upper and lower middle part of the body 10 is partitioned by a breathable partition wall 33 such as a net or a perforated board, and its front end is connected to the front wall 10a of the body 10.
A hot air outlet 5 of a hot air generating device (furnace) 5 provided in
The suction fan 6 has a long hot air path 31 located in the center of the left and right sides that communicates with 0, and is partitioned by an air-permeable bulkhead 33, with its rear end provided on the rear surface of the fuselage 10.
0 and 60 are arranged on both sides of the left and right sides, and these exhaust channels 32 and hot air channels 3
The left and right spaces formed between 1 are formed into grain flow paths 34, 34, respectively, and these grain flow paths 34, 34 are formed.
The upper open port 34a of the machine body 10 communicates with the tempering section 2, and the lower open port 34b communicates with the lower conveyor 4 for carrying out grains. The passages 34 are arranged in parallel on the left and right.

The lower conveyor 4 is a normal type that is constructed by mounting a screw 42 rotated by a rotating shaft 41 in a conveying gutter 40 provided along the longitudinal direction of the machine body 10, and is indicated by an arrow in FIG. The terminal end (right end in FIG. 2) in the transport direction shown is the rear wall 10 of the fuselage 10.
b protrudes rearward through the protrusion, and communicates with the lower part of the grain lifting tower 80 of the elevator 8 erected on the rear side of the fuselage 10 via an outlet 43 provided in the protrusion.

The hopper 7 for loading grain is provided on the front side of the machine body 10 so that an input port 71 projects forward from the front wall 10a of the machine body 10, and an outlet port 70 provided at the bottom of the hopper 7 is shown in FIG. As shown, it communicates with the starting end in the conveying direction of the lower conveyor 4 for carrying out the grains mentioned above.

The elevator 8 installed upright on the front side of the aircraft body 10 is
The upper end of the grain lifting tower 80 is a conventional type in which a bucket conveyor (not shown) for transporting grain upward is installed in the grain lifting tower 80 so as to rotate endlessly. Grain discharge cylinder part 8 provided on the side
1 is switchably connected to the starting end of the upper conveyor 20 provided on the ceiling of the thermal refining section 2 and a take-out cylinder (not shown) that opens to the outside of the machine by means of a shutter (not shown). be. Further, in FIGS. 4 and 5, R and R are rotary valves for controlling the grains flowing down to the lower conveyor 4 for carrying out, and the lower opening 34b of the grain flow path 34.
It is provided in

The shutter 9 for blocking the grain flow path is mounted on the machine wall side plate 10 on one side (right side in the drawing) of the machine body 10, as shown in FIG.
c, the machine wall side plate 10c is rotated inwardly and outwardly with respect to the warp body 10.
The upper end of the fuselage 1 is hinged by the rotation shaft 90.
0 and when it is rotated inward as shown by the solid line in FIG. In contact with the top of the ceiling wall 31a of No. 31,
It is configured to have a length that spans between the hot air passage 31 and the inner surface of the fuselage 10, so that when it is rotated inward and spanned over the hot air passage 31, the hot air The grain flow passage 34 on the right side, which is located on the right side of the passage 31, is designed to function as a shutter that blocks off the grain flow passage 34 on the right side from the tempering section 2.

Reference numeral 91 denotes a shutter 9 that allows the machine wall side plate 10c to block one grain flow path 34 from the tempering section 2.
This is a stay for holding the machine wall side plate 10c in that state when the machine wall side plate 10c is in that state, and the base end thereof is connected to a mounting bracket 92 installed near the lower end of the outer surface of the machine wall side plate 10c. They are movably connected, and the tip side is formed into a fork-shaped locking part, so that when the machine wall side plate 10c is rotated inward to become the shutter 9, this stay 91 The fuselage 1 is rotated relative to the mounting bracket 92, and the pronged locking portion on the tip side is released by rotating the machine wall side plate 10c.
By being engaged with the lower edge of the opening 11 on the 0 side, the machine wall side plate 10c is supported at the position where the shutter 9 will be.

93 is a holder for holding the above-mentioned stay 91 in the retracted position along the outer surface of the aircraft body 10 when the machine wall side plate 10c is returned to the position where it becomes the side plate of the aircraft body 10; It is equipped.

Reference numeral 30 denotes a shutter 9 made of the above-mentioned machine wall side plate 10c, which supplies hot air from the hot air passage 31 to the grain flow passage 34 on the right side when the grain flow passage 34 on the right side is shut off from the tempering section 2. As shown in FIG. 6, this is a shutter for cutting off hot air to prevent hot air from burning.As shown in FIG. 60 is installed in the form of a sliding sliding door, and as shown by the chain line in the same figure, it is moved to the right to close the end of the exhaust passage 32. Assuming that the suction pressure of the suction fan 6 is not applied to the hot air passage 32, the hot air passage 3
Hot air does not flow from 1 to the exhaust air passage 32, and therefore no hot air is supplied to the grain flow passage 34. If the exhaust air passage 32 is brought back to the solid line position in FIG. 6 to communicate with the suction air passage 60, the suction pressure of the suction air passage 60 will cause the hot air passage
1 to the grain flow path 31 to the grain flow path 34 to the ventilation path 3
2. Hot air will start flowing.

And also, this shutter 30 for blocking hot air.
The opening/closing operation is performed by providing a window hole 12 for opening and closing in the machine wall in the vicinity thereof, and operating the window hole 12 through the window hole 12.

Reference numeral 35 denotes a shielding plate that blocks the opening 11 on the side of the aircraft body 10, which opens wide when the machine wall side plate 10c is rotated inward as the shutter 9, from entering the hot air path 31 from outside air. , as shown in FIG.
A guide plate of the grain flow path 34 installed so as to extend to the second side is used, and the guide plate is rotatably mounted on the upper end of the partition wall 33 as shown in FIG. There is an opening 1 that opens when the machine wall side plate 10c, which becomes the shutter 9, is rotated inward (arrow A).
1, the ceiling plate 3 whose upper edge is the hot air path 31
By coming into contact with the side surface of 1a, communication between the hot air path 31 and the outside air via the grain flow path 34 is cut off.

The embodiment device constructed in this manner operates as follows.

If the machine wall side plate 10c, which is provided on the machine body 10 so as to rotate inward and outward, is rotated to the position where it becomes the side wall of the machine body 10, as shown in FIGS. The grain flow passages 34, which are double-row grain flow passages provided in parallel on the left and right sides, are all in communication with the tempering section 2.

Therefore, in this state, if a predetermined amount of grain is introduced into the tempering section 2 from the upper conveyor 20 and the grain dryer 1 is operated, the double-row grain flow path 34.
The grains circulate through the flow channels 34 and 3.
At step 4, hot air is supplied and the product begins to dry.

Next, when the machine wall side plate 10c is rotated inward as shown in FIG. It will now function as a shutter 9. In this state, if the grains lifted by the elevator 8 are fed into the tempering section 2 by the upper conveyor 20 and the grain dryer 1 is operated, the grains in the tempering section 2 will be The grains flow only into the left grain flow path 34 and circulate through only this left grain flow path 34, during which they are exposed to hot air and dried.

As explained above, the grain dryer according to the present invention includes an upper conveyor for loading grains on the ceiling of the inner cavity of the box-shaped machine body, and a tempering section for storing grains in the upper part. A lower conveyor for grain conveyance is provided at the bottom, and a plurality of grain flow paths are provided in parallel on the left and right in the middle part, the upper end of which communicates with the tempering section and the lower end of which communicates with the lower conveyor. In a grain dryer in which a hot air passage and an air exhaust passage are arranged in parallel to supply air, a rotating part of the side wall of the machine body, which is a part of the side wall of the tempering section, is provided on the upper edge side of the machine wall side plate. It is mounted on the fuselage so that it can rotate freely toward the inside of the fuselage by means of a shaft, and when rotated inward, the lower edge comes into contact with the bulkhead of the hot air path installed inside the fuselage.
Since the grain flow path located outside the hot air path is formed and configured to act as a shutter to shut off the grain refining section, when the amount of grain to be dried is small, double-row A switching operation can be performed using the machine wall side plate 10c, which is the side wall of the machine body 10, so that only a specific grain flow channel among the grain channels arranged in parallel with each other can communicate with the tempering section. Therefore, there is no need to provide a special switching shutter.
Since the switching operation can be eliminated, the number of structural members can be reduced and the aircraft configuration can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a grain dryer embodying the present invention, Fig. 2 is a cut-away side view of the same with the upper end omitted, Fig. 3 is a schematic plan view of the same, and Fig. 4 is a cut-away front view of the same. 5 is a cutaway front view with one grain flow path closed, and FIG. 6 is an explanatory view of the action of the shutter that opens and closes the air intake port of the suction fan. Explanation of drawing symbols 1... Grain dryer, 10... Machine body, 10a... Front wall, 10b... Rear wall, 10c... Machine wall side plate, 11... Opening port, 12... Window hole, 2... Tempering section,
20... Upper conveyor, 3... Ventilation drying section, 30... Shutter, 31... Hot air path, 31a... Ceiling plate, 32
...Exhaust channel, 33...Partition wall, 34...Grain flow channel, 34a...
Upper open port, 34b... Lower open port, 35... Shielding plate, 4... Lower conveyor, 40... Conveying gutter, 41... Rotating shaft, 42... Screw, 43... Discharge port, 5... Hot air generator, 50... Hot air discharge port , 6... Suction fan, 60... Air intake, 7... Hopper, 70... Outlet, 71... Inlet, 8... Elevator, 80... Grain lifting tower,
81...Grain discharge tube part, 9...Shutter, 90...Rotating shaft, 91...Stay, 92...Mounting metal fittings, 93...Holding metal fittings, R...Rotary valve.

Claims (1)

[Claims] 1. An upper conveyor for loading grain is provided on the ceiling of the internal cavity of the box-shaped machine body, a tempering section for storing grain is provided in the upper part, a lower conveyor for transporting grain is provided in the lower part, In the middle part, a plurality of grain flow channels are provided in parallel on the left and right, the upper end communicating with the tempering section and the lower end communicating with the lower conveyor, and hot air channels supplying hot air to these channels and exhaust channels are arranged in parallel. In the grain dryer equipped with the above-mentioned grain dryer, the side wall of the machine wall, which is the side wall of the tempering section, is attached to the machine body so that it can freely rotate toward the inside of the machine body by a rotating shaft provided on the upper edge side of the machine wall side plate. When installed, the lower edge contacts the bulkhead of the hot air path installed inside the fuselage by rotating inward.
A grain dryer characterized in that the grain dryer is formed to act as a shutter that blocks a grain flow path located outside the hot air path from a tempering section.