JPS6318112B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention attempts to spread grains, etc., evenly into a tank using a diffusion blade, and can be implemented in a circulation type grain dryer.

[Prior Art] In the case of grain dryers, the position of grains falling from the upper helical gutter may be offset relative to the upper helical gutter depending on the moisture content of the grains or the amount of grain conveyed. Conventional techniques for supplying the falling grains to the central portion of the lower diffusion blade include Japanese Utility Model Application Publication No. 49-89251 and Japanese Utility Model Publication No. 52-5068.

[Problems to be Solved by the Invention] However, in all of these conventional techniques, the movement of the flow control plate or the diffusion vane is adjusted artificially relative to the grain falling portion of the upper helical gutter. Therefore, when these conventional techniques are applied to a grain dryer, the flow position of grains in the upper helical gutter can be changed between when the moisture content is high at the beginning of drying, when the moisture content is low after drying, or when the grain is flowing down during the drying process. The uneven conveyance of grains in the upper helical gutter changes during the drying process, depending on whether a large amount of grain is being conveyed at the time of starting the drying process or a small amount is being conveyed during the drying process, so adjustments must be made each time. There was a problem that the adjustment operation was complicated.

Therefore, the present invention attempts to eliminate the drawbacks of such conventional devices.

[Means for solving the problem] The technical configuration of the present invention for solving the problem is that a diffusion vane 15 rotating around a vertical axis is disposed in the upper part of the tank 2, and an upper helical transfer device 13
A falling guide 14 is connected to the end of the upper helical gutter 12 that supports the inner shaft, and the grain falling part of the falling guide 14 is repositioned from the central part above the diffusion blade 15 to the outer part. The detector 20, which can be configured freely and is disposed in the upper spiral door gutter 12 and is capable of detecting the amount of unbalanced conveyed grains, and the falling guide 14 are connected in a related manner. A structure of a diffusion adjustment device for grains, etc., characterized in that when a large amount of grains are being conveyed in a lopsided manner, the falling guide body 14 is deviated so that the lower end of the side of the falling guide body 14 is positioned above the central part of the spreading blade 15. That's what I did.

[Operations and effects of the invention] The upper helical transfer device 1 moves inside the upper helical door gutter 12.
The grains conveyed in step 3 are dropped and supplied from the falling guide 14 to the diffusion blades 15 below, but when the amount of deviation of the conveyed grains is small, the lower end of the center of the falling guide 14 is supplied to the diffusion blades 15. 15, the grains are dropped near the center of the diffusion vane 15 and are supplied to the tank 2 almost evenly. When the amount of deviation increases during grain transportation, the deviation state is detected by the detector 20, and
The lower end of the side of the falling guide 14 is automatically changed to a position above the center of the diffusion blade 15, and the falling guide 1
The position where the grains fall from the tank 2 automatically becomes the central part of the diffusion vane 15, and the grains can be uniformly loaded into the tank 2, which can help make the drying work automatic. be.

[Example] Examples of the present invention will be described below.

First, to explain the configuration of the example, 1
is a grain dryer, and this grain dryer 1 has a grain tank 2, a drying room 3, and a grain collection room 4 arranged sequentially from the top to the bottom, and the grains in the grain tank 2 are placed in the left and right sides of the bottom. The drying path 3a of the lower drying chamber 3 flows down on the plates 5, 5 and the center panel 6,
3a, and there are hot air paths 3b, 3b on both left and right sides of the drying paths 3a, 3a.
There is also an air exhaust path 3 near the center of the drying paths 3a, 3a.
In addition, an exhaust fan (not shown) is installed at the end of the exhaust passage 3c, and the hot air heated by the burner (not shown) is transferred to the exhaust fan (not shown). Due to the action, hot air path 3
b, 3b through the drying paths 3a, 3a to the ventilation path 3.
The grains in the drying passages 3a, 3a are subjected to a drying action while flowing to the drying passage 3c, and the hot air after the drying action is discharged to the outside of the machine from the exhaust passage 3c.

Below the drying paths 3a, 3a in the grain collection chamber 4, rotary valves 7, 7 are disposed for feeding out the grains in the drying paths 3a, 3a downward, and the grains fed out by the rotary valves 7, 7 are The grains flow on the flow plates 8, 8 and are collected in the lower helical gutter 9 of the grain collecting room 4, and are then transported by the lower helical transfer device 10 to the elevator 11 disposed on the side of the grain dryer 1. is configured to be

An upper spiral door gutter 12 is disposed in the upper center of the grain tank 2, and a grain input port 11a of the elevator 11 is connected to the starting end of the upper spiral door gutter 12. An upper helical transfer device 13 is rotatably mounted inside the upper helical door gutter 12, and a drop guide 14 is attached to the terminal end of the upper helical door gutter 12. 15 is a diffusion blade, and the diffusion blade 15
is configured to be able to rotate at a position above the center of the grain tank 2 by means of a vertical diffusion shaft 16.

A fall guide 14 disposed at the terminal end of the upper helical gutter 12 is supported so as to be able to rotate in the left and right directions about a fulcrum pin 14a, and a spring 17 is attached to one side of the fall guide 14. At the same time, a connecting rod 19 connected to the solenoid 18 is connected to the other side, and when the solenoid 18 is not activated, the fall guide body 1 is
4 is stretched so that the lower end of the falling guide 14 is positioned above the center of the diffusion blade 15,
Further, when the solenoid 18 is activated, the drop guide 14 rotates around the fulcrum pin 14a toward the solenoid 18 against the spring 17, and the drop guide 14
The lower end portion of the diffusion blade 15 is configured to be offset from the center portion of the diffusion blade 15 .

Reference numeral 20 denotes a limit switch disposed above the terminal end of the upper helical door gutter 12, and the detecting portion 20a of the limit switch 20 is located above the upper helical door gutter 12, and is located above the upper helical transfer device 13 from below. It is arranged on the rotating side, that is, in the part of the upper helical transfer gutter 12 where a large amount of grain is transferred in a lopsided manner. Press 20a to turn the limit switch 20
When activated, the solenoid 18 is activated and the fall guide 14 is rotated against the spring 17.

Since the structure is as described above, when low-moisture grains are supplied to the upper helical gutter 12,
As shown in Figure 5A, the amount of grains shifted to one another is small;
When grains are not acting on the detection part 20a of the limit switch 20, the solenoid 18 is not activated, so the fall guide 14 is pulled by the spring 17, and the lower end of the fall guide 14 is connected to the diffusion blade 15.
It is located above the center of the Therefore, the grains are supplied from the end of the helical transfer gutter 12 to the falling guide 14 with relatively little deviation, so the grains are supplied from the falling guide 14 to approximately the center of the diffusion blade 15, and the grains are The grains can be dispersed and dropped almost evenly into the tank 2.

In addition, grains with high moisture content are supplied to the upper helical gutter 12, and the grains are transferred in the upper helical gutter 12 by the helical transfer device 13 with an increased amount of deviation within the upper helical transfer gutter 12. When the grains are transferred in a lopsided state, the detection part 20a of the limit switch 20 is pressed and the limit switch 20 is activated, the solenoid 18 is energized and activated, and the falling guide body 14 is moved to the upper spiral door gutter 12. The falling guide body 14 is rotated to the opposite side to the direction in which the grains are shifted. Therefore, grains are supplied to the falling guide 14 in a biased state from the terminal end of the upper helical gutter 12, but the falling guide 14
Since the grains are moved in the opposite direction to the one-sided direction, the grains can be supplied almost to the center of the spreading vane 15, and the grains can be evenly spread and dropped into the grain tank 2. .

Note that in order to rotate the drop guide 14 from above the central portion of the diffusion vane 15 to a position offset to one side, a hydraulic device or a forward/reverse motor may be employed, and this embodiment The present invention is not limited to the above, and other appropriate technical means may be adopted.

[Brief explanation of the drawing]

The drawings show embodiments of the invention.
2 is a perspective view, FIG. 3 is a front cutaway view, FIG. 4 is a front cutaway view, and FIG. 5 is a front cutaway view showing the operating state. Explanation of symbols: 1...Grain dryer, 2...Grain tank, 3...Drying room, 4...Grain collecting room, 5...Left.
Right side panel, 6... Center panel, 7... Rotary valve, 8... Grain board, 9... Lower spiral door gutter,
10... Lower spiral transfer device, 11... Elevator, 12... Upper spiral door gutter, 13... Upper spiral transfer device, 14... Fall guide, 14a...
Fulcrum pin, 15...Diffusion vane, 16...Diffusion shaft,
17... Spring, 18... Solenoid, 19... Connecting rod, 20... Limit switch (detector), 2
0a...detection section.

Claims (1)

[Claims] 1. A diffusion blade 15 that rotates around a vertical axis is arranged at the top of the tank 2, and a drop guide body 14 is connected to the end of the upper helical door gutter 12 that supports the upper helical transfer device 13 on its internal axis. , the grain falling part of the falling guide 14 is configured to be freely repositionable from the central part above the diffusion blade 15 to the outer part, and is disposed in the upper helical gutter 12, and is arranged in the upper helical gutter 12, so that the grain falling part is deviated in the amount of grain to be transported. A detector 20 capable of detecting the drop guide body 14 is connected in a related manner, so that when the upper helical gutter 12 is conveying a large amount of uneven grains, the lower end of the side of the fall guide body 14 moves above the central part of the diffusion blade 15. A diffusion control device for grains, etc., characterized in that a falling guide body 14 is deflected so that the falling guide body 14 is positioned.