JPS6238018B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vertical circulation type grain dryer, and particularly to improvements in the height of the dryer main body and elevator, and the structure of an upper conveying device.

Conventionally, this type of dryer is equipped with an upper conveyance device at the top of the storage chamber in order to maximize the amount of grain loaded in the storage chamber at the top of the dryer main body, and the upper conveyance device extends along the longitudinal direction of the storage chamber. It is designed to be horizontally suspended over almost the entire area so that grain can be distributed evenly. On the other hand, the elevator is of the bucket type, and by the rotation of the bucket belt wound around the upper and lower pulleys, the bucket scoops up the grain at the bottom and lifts it up, and the head rotates around the upper pulley and reverses it. The grain is discharged when the grain is removed. Therefore, the discharge port at the head of the elevator must be located approximately below the axis of the upper pulley, and the upper transfer device at the top of the storage chamber is communicated below this discharge port to transfer the lifted grain. It is configured to do this. Therefore, in the main body of the dryer, the head of the elevator necessarily protrudes above the upper conveying device located at the highest position, and the height of the entire dryer is regulated by the height of the elevator.

Thus, when installing a dryer indoors in a farm building, barn, etc., it is possible to install a model that can be installed not at the height of the dryer itself, which is directly related to the drying capacity and capacity, but at the height of the elevator, which is an additional device that is unrelated. is selected, making it impossible to install a large dryer using the maximum height of farm buildings, etc. Additionally, if you try to install a dryer with a maximum height on the roof structure of a farm building, etc., the position of the elevator will be restricted and the installation will impair work efficiency, ie, the location of the operating part, hopper, exhaust port, etc. will be inappropriate. It's easy to happen.

The present invention has been made to solve these problems, and by making the height of the dryer body and the elevator approximately the same and arranging the upper conveying device on an upward slope, the functions of the elevator and conveying device and the expansion of the storage chamber can be improved. To provide a circulating grain dryer in which the height of an elevator can be lowered without causing a reduction in loading capacity.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. In the embodiments shown in FIGS.
This is a storage chamber for grain provided in the upper part of the storage chamber 2, and a grain collection chamber is superimposed below the storage chamber 2 with a drying layer (not shown) interposed therebetween. An elevator 3 having substantially the same height as the dryer main body 1 is erected at a location on either side of the front center of the dryer main body 1. The elevator 3 has an upper pulley 5 driven by a motor or the like on a head 4' inside an elongated box-shaped elevator case 4, and a large number of bucket belts 6 are connected between the upper pulley 5 and a lower pulley at the lower end (not shown). It is formed by winding a bucket belt 7 having a bucket belt 7.
As the bucket cart 6 rotates, it scoops up the grains sent from the grain collecting room at its lower end, and then lifts up and discharges the grains when it is reversed while going around the upper pulley 5. As a result, a discharge port 8 is provided in communication with the lower part of the head 4' near the center where the grain is discharged by the bucket 6 of the elevator case 4, and this discharge port 8 is connected to the gutter 10 of the upper conveying device 9.
It communicates with the starting end 10' at.

The upper conveying device 9 has a gutter 10 which slopes upward from the discharge port 8 toward the approximate longitudinal center of the dryer main body storage chamber 2 at the top 2' of the dryer body storage chamber 2, and is inclined. One end of the screw 11 is attached to the end plate 12 of the starting end 10' over almost the entire area in the direction of the bearing 1.
3, and the other end is supported by a bearing 15 on a support plate 14 suspended so as to open the lower part of the terminal end 10''. pulley 16 on the protrusion of
is attached to this pulley 16 and a pulley 18 on the shaft 17 of the upper pulley 5 of the elevator 3 is wrapped with a V-belt 19 that does not cause any trouble even if it is slightly twisted,
The screw 11 is rotated in conjunction with the elevator 3.

Further, a discharge port 20 for discharging the grains to the outside after drying is installed under the starting end 10' communicating with the discharge port 8 of the gutter 10 of the upper conveyance device 9, and a shutter 21 is connected to the motor 37 at this connection portion. It is provided so that it can be rotated to open and close. Furthermore, at the terminal end 10'' of the upper conveying device 9, there is provided a rotary dispersion device 22 for evenly distributed dropping, which device 22 has a single drop opening 24 below the case 23 communicating with the gutter 10, The input shaft 26 of 25 is connected to the universal joint 27.
The output shaft 28 is connected to the other end of the screw 11 through the screw 11, and its output shaft 28 is connected to the dispersion impeller 29 disposed below it through the drop port 24. is rotated.

With this configuration, the screw 11 of the upper conveyance device 9 and the impeller 29 of the rotation dispersion device 22 are driven as the elevator 3 operates during dryer operation. Therefore, when the shutter 21 is closed to block the discharge port side, the grain lifted by the elevator 3 is discharged from the discharge port 8 and transferred to the gutter 1 of the upper conveying device 9.
It accumulates at the starting end 10' at 0, and then is immediately conveyed diagonally upward along the gutter 10 by the rotation of the screw 11, and is transferred to the case 23 of the rotating dispersion device 22.
Go inside. And, the drop port 24 of this case 23
When the grains fall from the storage chamber 2, they are scattered radially by the rotating impeller 29, and in this way, the grains are uniformly distributed and reduced within the storage chamber 2. When the shutter 21 is opened after drying is completed, the discharge port 8 from the elevator 3
The grains are now in communication with the discharge port 20 through the gutter starting end 10', and therefore the grains discharged from the discharge port 8 are not transported by the screw 11 and are discharged even though the screw 11 is rotating. Exit 20
After that, it is discharged to the outside.

According to another embodiment of the present invention shown in FIG. 3, the gutter 10 of the upper conveying device 9 has an upward slope in the entire longitudinal direction extending from the front plate 1' to the rear plate 1'' in the storage chamber 2 of the dryer body 1. The screw 11 is installed in the gutter 10, and the end plate 1 is placed in front of the screw 11 in the same way as above.
2, and the other end is pivotally supported on a rear end plate 30 with a bearing 31, and is accommodated so as to be rotationally driven by the elevator 3. An equal distribution drop device 32 is provided at the bottom of the gutter 10 disposed throughout the entire area in the storage chamber 2, and this device 32 has drop ports 33 and 34 at two locations, for example, at the bottom of the gutter 10. However, a guide 35 is provided below these drop ports 33 and 34 to regulate the direction in which the grains fall, and a shutter 36 is provided at the drop port 33 on the starting end side to open and close. As a result, even in the case of this embodiment, the grains discharged from the discharge port 8 of the elevator 3 during operation of the dryer are conveyed obliquely upward along the gutter 10 by the rotation of the screw 11, and when the shutter 36 is opened, the grains are discharged from the discharge port 8 of the elevator 3.
3 and closes, it is further conveyed upward and falls from the drop opening 34, and thus falls evenly into the storage chamber 2 and is stored therein.

As described above, according to the present invention, the height of the elevator head 4' can be reduced by simply arranging the upper conveying device 9 so as to be inclined upward, and without changing the structure or function of the upper conveying device 9 or the elevator 3. Since the height can be made equal to the height of the dryer main body 1, the overall height is lower than that of the conventional machine even with the same loading amount, and in a market where the demand for large machines is increasing, it becomes possible to upgrade to a large machine without remodeling the farm building.
Since there is no upwardly protruding object on the top part 2' of the dryer main body, the degree of freedom in installation within the farm building is increased, and a layout that prioritizes workability can be achieved. By lowering the overall height of the elevator 3, on-site installation work becomes easier and the grain lifting power is reduced.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing a first embodiment of the dryer according to the present invention, FIG. 2 is a cross-sectional view along the line shown in FIG.
FIG. 3 is a longitudinal sectional view showing the second embodiment. DESCRIPTION OF SYMBOLS 1...Dryer main body, 2...Storage chamber, 3...Elevator, 8...Discharge port, 9...Upper conveyance device.

Claims (1)

[Claims] 1. An elevator is installed on the side of the main body of the dryer, which has a grain storage room, a drying layer, and a grain collection room stacked from above, and the grain carried out from the grain collection room in the lower part is transferred to the grain storage room in the upper part. In a circulating grain dryer that performs recirculation circulation, the top of the dryer main body and the head of the elevator are made approximately at the same height, and the above-mentioned A circulating grain dryer characterized by having an upper conveying device inclined upward toward the top of the grain storage chamber.