JP4748437B2 - Grain disperser in grain dryer - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a grain dryer for rice and the like, and more particularly to a grain dispersing device in a grain dryer.
[0002]
[Prior art]
A grain dryer having a tank section for storing grains, a ventilation drying section for sequentially drying grains in the tank section, and an elevator for returning the grains that have passed through the ventilation drying section to the tank section. In order to prevent unevenness in drying, it is necessary to throw the grain that has passed through the ventilation drying unit back to the tank unit through an elevator so as to prevent drying unevenness. Various proposals have been made.
[0003]
In order to throw grains uniformly into the tank section with such a grain dispersing device, a part of the grain lifted by the elevator does not fall directly from the dispersing device into the tank section, but as close as possible to the entire amount. It is desirable to forcibly disperse in the tank part by the centrifugal force of the dispersing device.
[0004]
By the way, for example, a dispersing device described in Japanese Patent Application Laid-Open No. 57-141326 is formed by extending a plurality of grain diffusing blades radially from a base made of a flat board, and the grain supplied to the dispersing apparatus. There are many things that fall immediately from the space between adjacent grain diffusion blades, and such a drop phenomenon is more conspicuous as the supplied grain flow increases, and cannot be effectively dispersed by a dispersing device. There was a drawback. In addition, if the rotation speed of the said grain diffusion blade is raised, the fallen grain will decrease, but the problem that damage to a grain is inevitable arises.
[0005]
On the other hand, for example, as disclosed in JP-A-11-201643, a mortar-shaped dispersion device that easily receives grains supplied to a tank unit has been proposed. For the time being, even if the flow rate of grain supplied to the dispersing device is large, it does not fall directly to the grain layer.
[0006]
[Problems to be solved by the invention]
However, in the case of the above-mentioned mortar-shaped dispersing device, there is a problem that the grains remain at the bottom of the dispersing device at the end if the rotational speed is such as not to cause grain damage, and the mortar-shaped inclination Since the grains are thrown along the surface, there is a problem that the grains tend to be stacked near the wall of the tank part, and it is difficult to throw the grains evenly.
[0007]
Accordingly, the present invention accepts almost the whole amount of grain supplied to the dispersing device without dropping it directly, can be thrown into the tank part evenly, and no grain residue is generated. It is a technical problem to provide a grain dispersing apparatus in Japan.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the invention according to claim 1 is: A grain disperser provided in an input section for returning the grain that has passed through the ventilation drying section to the grain tank section. A plurality of damming members for continuously restricting the radial movement of the grains due to the rotation of the disperser are provided continuously at the peripheral edge of the disperser which is suspended by the drive shaft; 1. An opening for dropping a part of the grain is provided in the dispersion plate ; The dam member comprises a horizontal guide plate and a restricting plate provided perpendicular to the guide plate, and the restricting plate opens toward the front in the rotational direction of the dispersion plate. A rear end portion in the rotational direction is pivotally attached to a peripheral edge portion of the dispersing disc; In order to make the height of the restriction plate variable, a technical means is adopted in which the restriction plate is formed of a fixed restriction plate and a movable restriction plate . As a result, most of the grain supplied to the grain dispersing device is blocked by the damming member, and there are very few grains that fall directly into the tank part except those that fall directly from the opening part. Is forced into the tank part evenly by centrifugal force. The damming member is composed of a horizontal guide plate and a restricting plate provided perpendicular to the guide plate, and the guide plate is opened so that the restricting plate opens forward in the rotational direction of the dispersion plate. The rear end in the rotational direction of the plate is pivotally attached to the peripheral portion of the dispersing plate, whereby the grain on the dispersing plate is discharged from the end of the guide plate along the regulating plate, and on the dispersing plate. Residual is prevented. Moreover, in order to make the height of the restriction plate variable, the restriction plate is formed from a fixed restriction plate and a movable restriction plate, so by changing the height of the restriction plate due to the difference in grain properties and flow rate, It is possible to adjust the state of grain retention on the disperser.
[0009]
[0010]
According to a second aspect of the present invention, there is provided an opening adjusting plate having an opening formed in the same position and at the same position as the opening so that the degree of opening of the opening of the dispersing disk is variable. This makes it possible to adjust the amount of grain that falls directly from the disperser and to achieve a levelness near the center of the tank .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an enlarged plan view of a main part showing a grain disperser according to an embodiment of the present invention, and FIG. 2 is a front view of the same part broken. FIG. 3 is an overall front view when the grain dispersing device is implemented in a grain dryer. In FIG. 1, the code | symbol 1 shows the whole grain dryer, this grain dryer 1 consists of the tank part 2 and the ventilation drying part 3 formed in the downward direction, The elevator 4 is attached to these one side, The grain passing through the ventilation drying unit 3 is lifted by the elevator 4 and returned to the tank unit 2 through the chute pipe 5 and the grain dispersing device 6.
[0012]
Next, the grain disperser 6 will be described in detail with reference to FIGS. The central portion of the dispersal disc 7 having a regular hexagonal shape in plan view is fixed by a mounting plate 10 at the lower end of the drive shaft 9 directly connected to the motor 8, and the motor 8 is fixed to the central portion of the top plate 11 of the tank portion 2. As a result, the disperser 7 is vertically suspended by the drive shaft 9. Damping members 12 are continuously attached to the six sides of the dispersion plate 7. The dam member 12 is pivotally attached to the edge of the rear end in the rotational direction of each side of the dispersal plate 7 by means of a pin 14 at a portion corresponding to the center of the fan-shaped guide plate 13 in plan view. One end is fixed by a bolt / nut 16 inserted through a slit 15 provided at the front end in the rotational direction of the side. In addition, a restriction plate 17 is provided vertically along the other end of the arc and the arc. The restriction plate 17 includes a fixed restriction plate 17a and a movable restriction plate 17b. A pair of slits 18 provided in the movable restriction plate 17b and bolts and nuts 19 engaged with the slits 18 are fixed to the fixed restriction plate 17a. 17 is slidably attached. Accordingly, the height of the restricting plate 17 can be adjusted by moving the movable restricting plate 17b up and down, and the guide plate 13 is horizontally rotated by the slit 15 so that the restricting plate 17 is forward in the rotational direction of the dispersion plate 7. The angle of opening toward can be varied.
[0013]
Further, the disperser 7 is provided with four substantially elliptical fixed openings 20 equidistant from the center and equidistant from each other, while the back surface of the disperser 7 is the same as the fixed openings 20. A donut-shaped opening adjusting plate 22 having a movable opening 21 at the same position in the shape is rotatably mounted. That is, the bolt 23 inserted from the dispersing platen 7 side is engaged with the arc-shaped slit 24 formed in the opening adjusting plate 22 and screwed with a nut 25 to attach the opening adjusting plate 22 to the back surface of the dispersing plate 7. The opening adjustment plate 22 is rotated by a handle 26 by loosening the nut 25 and adjusting the opening degree.
[0014]
A close-up box 27 is provided on the top plate 11 in the vicinity of the motor 8. The top plate 11 in the box 27 is provided with a charging port 28, and the upper part is connected to the lower end of a chute pipe 29 extending from the discharge port of the elevator 4. In addition, a guide chute 31 is provided in the charging box 27 so as to be rotatable by a horizontal shaft 30, and an adjustment bolt 32 that abuts on the back surface of the guide chute 31 and can change an inclination angle is provided. A fixed restricting plate 33 may be provided in a hopper shape so as to face the guide chute 31. In the present embodiment, the disperser 7 is a regular hexagon. However, the present invention is not limited to this and may be another polygon or a circle.
[0015]
The specific operation in the above embodiment will be described below. Grain that has passed through the ventilating and drying unit 3, such as glutinous rice, is lifted by the elevator 4, and introduced into the input box 27 from the chute pipe 5, and the grain disperser 6 is guided by the guide plate 33 and the guide chute 31. To be supplied. The grain disperser 6 is rotated about 90 revolutions per minute by the motor 8, and the sticky rice flowing down from the guide chute 31 is adjusted by the adjusting bolt 32 so as to fall to the substantially central portion of the disperser 7.
[0016]
The dispersal member 7 is continuously provided with a damming member 12 on the peripheral edge thereof, and the sticky rice is not immediately dropped by the regulating plate 17, but once it is received on the disperser 7, it is rotated. Due to the centrifugal force of the dispersing device 6, it moves to the guide plate 13 side of the blocking member 12 and is scattered by the regulating plate 17, discharged between adjacent blocking members 12 and from the upper edge of the regulating plate 17, or dispersed It falls downward from an opening provided in the board 7 and is dispersed in all directions, and as a result, it is thrown into the tank part 2 evenly. At this time, according to the quantity and properties of the rice bran supplied from the chute pipe 29, most of the rice bran supplied is accepted on the dispersing plate 7 and no residue is left on the dispersing plate 7. While checking the leveling state in the tank unit 2, the angle or height of each regulating plate 17 or the opening adjusting plate 22 on the back surface of the dispersion plate 7 is adjusted.
[0017]
【The invention's effect】
As described above, according to the present invention, since a plurality of damming members are continuously provided at the peripheral edge of the dispersing disc, the grain to be supplied is forcibly received by the dispersing disc and then forced by the dispersing disc. As a result, the uniformity is greatly improved as compared with the case where there are many grains falling directly on the grain layer as in the conventional case. This effect becomes more prominent as the supply flow rate increases. For example, in the present invention, when the flow rate is 30 tons per hour, most grains fall directly and the dispersal function is lowered. Most grains are received by the disperser and effectively disperse.
Further, since the regulating plate is provided to open to the front in the rotation direction of the dispersing plate, the grain is discharged from here, and no grain remains on the dispersing plate.
Furthermore, since the angle and height of the regulation plate can be adjusted, these can be adjusted according to the increase or decrease of the supply flow rate, and an optimal dispersion state can be easily realized. In addition, the distributor, provided with an opening for dropping a portion of the grain, since the adjustable opening degree, grain in the central part of the tank that could be sedimentary appropriately.
[Brief description of the drawings]
FIG. 1 is an enlarged plan view of a main part showing a grain disperser according to an embodiment of the present invention.
FIG. 2 is a front view of the same part fractured.
FIG. 3 is an overall front view when the grain dispersing device is implemented in a grain dryer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Grain dryer 2 Tank part 3 Ventilation drying part 4 Elevator 5 Chute pipe 6 Grain disperser 7 Dispersion board 8 Motor 9 Drive shaft 10 Mounting plate 11 Top plate 12 Damping member 13 Guide plate 14 Pin 15 Slit 16 Bolt and nut 17 Regulating plate 18 Slit 19 Bolt / nut 20 Fixed opening 21 Movable opening 22 Opening adjustment plate 23 Bolt 24 Slit 25 Nut 26 Handle 27 Loading box 28 Loading port 29 Chute pipe 30 Horizontal shaft 31 Guide chute 32 Adjust bolt 33 Fixed guide plate

Claims (2)

A grain disperser provided in a throwing unit for returning the grain that has passed through the ventilation drying unit to the grain tank unit, wherein the grain is produced by rotation of the disperser at the peripheral part of the disperser that is rotatively suspended by a drive shaft. A plurality of damming members for restricting the radial movement of the grain are provided continuously, and an opening for dropping a part of the grain is provided in the dispersing disc. The damming member includes a horizontal guide plate and a guide plate. And a rear end portion in the rotational direction of the guide plate is pivotally attached to a peripheral portion of the dispersion plate so that the restriction plate opens toward the front in the rotation direction of the dispersion plate. Further, the grain dispersing device in the grain dryer is characterized in that the regulating plate is formed of a fixed regulating plate and a movable regulating plate so that the height of the regulating plate can be made variable . In order to varying the opening degree of the opening of the distributor, to the distributor, substantially the same shape as the opening, and the opening adjusting plate an opening is formed in the same position becomes in contact with claim 1, wherein Grain disperser in a grain dryer.

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