JPS5941514Y2 - Transport route switching device in grain drying equipment - Google Patents

Description

[Detailed description of the invention] In this invention, a grain circulation or tension transportation route 1 is provided outside the grain drying chamber 7, and the upper and lower portions of the route 1 are opened at the upper and lower portions of one end surface of the drying chamber 7. A rotary blade 4 capable of changing height and low speed is provided below the lower opening 1', and a screw conveyor 9 provided at the bottom of the drying chamber 7 is connected to the supply port of the rotary blade 4, and the ceiling of the drying chamber 7 is In a grain drying device provided with an air discharge blower 10 facing an upper opening 1'' on the side, a grain discharge route 2 provided at the upper end of the transport route 1 is provided.
The lower end portion is extended inside the transport route 1 and below the upper opening 1″ to form a downward opening 2′, and the transport route 1
The upper end of the opening/closing plate 3 provided on the inner side of the passage 1 facing one side 5 perpendicular to one end face of the drying chamber 7 is pivoted 3' at the inner lower end of the downward opening 2', The lower end of the opening/closing plate 3 is extended and suspended directly above the rotary blade 4, and the lower end is brought into contact with a stopper 6 provided on the side of the first rule surface 5 of the lower opening 1'. 5 and the opening/closing plate 3, and by rotating the opening/closing plate 3,
This relates to a transport route switching device formed to close the thrower transport route 2'' by bringing the lower end into contact with the above-mentioned side surface 5, and is used to circulate and load grain into the grain drying chamber 7 by pneumatic transport, and to use rotary vanes. The purpose of this system is to smoothly switch between drying and discharging dried grains to the outside of the machine, promote the dispersion of grains during pneumatic transport, and improve transport efficiency using rotating blades.

The opening/closing plate 3 is formed of a long plate as shown in Fig. 3, and is rotated to the solid line position in the figure to close the thrower transport route 2'', and rotated to the imaginary line position to open the same route 2''. In addition, the stopper 6 serves as a fried grain guide.

In the figure, the reference numeral 8 indicates grains placed in the chamber 7, the reference numeral 11 indicates a grating for dispersing the grains extending from the upper opening 1'' to the blower 10, and the reference numeral 12 indicates a grain diffusion control plate.

Therefore, when the grains are spread inside the drying chamber 7 or the grains 8 that have been spread are circulated through the air transport path 1, an upward air current is generated in the transport path 1 by the discharge blower 10, and the opening/closing plate 3 is When the rotary blade 4 is moved to the solid line position in Fig. 3 and the thrower transport path 2'' is closed, the rotary blade 4 is rotated at low speed in the direction of the arrow, and the input grains or turf grains 8 are fed to the rotary blade 4 by the screw conveyor 9. Due to the low-speed rotation, the grains are fried above the lower opening 1' along the inclined opening/closing plate 3 located at the solid line position in FIG. The opening/closing plate 3 is moved to the position shown by the solid line in Fig. 3 when discharging the grains from the machine after the completion of drying, which is placed in the drying chamber 7 through the upper opening 1'' through the grating 11 or circulated into the drying chamber 7 on the top surface. The lower thrower transport route 2'' is formed between it and one side 5 by rotating it to the imaginary line position, stopping at the swivel 6 and holding it vertically, and connecting it to the grain discharge route 2. be able to.

In this state, when the rotary blade 4 is rotated at high speed in the direction of the arrow to increase the transport speed of the screw conveyor 9, the grains 8 are transferred to the opening/closing plate 3 and one side 5 due to the force of the high speed rotary blade 4.
It is discharged outside the machine via route 2'' between and discharge route 2.

A grain drying device (Japanese Unexamined Patent Application Publication No. 1983-1982) that switches between loading and circulating grains stored in a drying chamber using conventional pneumatic transport and discharging dried grains outside the machine using a thrower using an opening/closing plate provided at the upper two crotches of an air transport path. 80870), when discharging dry stored grains outside the machine, the pneumatic transport was stopped and only the thrower was relied upon, so the pneumatic transport path with a large cross-sectional area was directly switched to the thrower transport path, so the rotary impeller was used. The problem was that the grains blown away tend to be scattered unevenly in the large air transport channel, making it difficult to discharge them from the aircraft smoothly and quickly.

Furthermore, even when grain is loaded and circulated by air transport, it tends to be transported unevenly, making it difficult to transport it into the drying chamber in a smooth spreading state.

The present invention was developed in view of the above-mentioned defects, and since the structure of the present invention is as described above, during pneumatic transport, the direction of the initial velocity of the grains added by the low-speed rotating blades 4 is guided by the closing plate 3 whose direction is slightly inclined. The direction is almost the same as the direction of the upward airflow entering from the lower opening 1', which can prevent grains from being transported by air to one side and achieve a smooth dispersion state. By forming a small thrower transport route 2'', an air transport route with a large cross-sectional area can be quickly and smoothly switched to a thrower transport route with a small cross-sectional area, which has the advantage of improving transport efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a grain drying device equipped with the transportation route switching device of the present invention, Fig. 2 is a longitudinal sectional view of the device, and Fig. 3 is a
It is a longitudinal cross-sectional view taken along the line A-A. 1... Grain circulation or staked transportation route, 1'...
...Lower opening, 1''...Top opening, 2.
...Grain discharge route, 2'...Downward opening, 2''...Thrower transport route, 3...
Opening/closing plate, 3'...Axis support, 4...Rotating blade, 5...-side, 6...Stop stopper 7... Grain drying room, 9...Screw conveyor, 10...Air discharge blower
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Claims (1)

[Scope of utility model registration request] A grain circulation or tensioning transportation route 1 is provided in the upper part (U1) of the grain drying room 7, and the upper and lower parts of the route 1 are opened at the upper and lower parts of one end surface of the drying room 7, with openings 1', 1''L, and lower openings 1 A rotary blade 4 that can be adjusted in height and speed is provided below the drying chamber 7, and a screw conveyor 9 provided at the bottom of the drying chamber 7 is connected to the supply port of the rotary blade 4. In the grain drying apparatus, which is provided with an air discharge blower 10 facing the transport route 1, the lower end of the grain discharge route 2 provided at the upper end of the transport route 1 is located inside the transport route 1, and the upper opening 1
An opening/closing plate 3 extending downwardly to form a downward opening 2', facing one side 5 perpendicular to one end surface of the drying chamber 7 of the transportation route 1, and provided on the inner side of the transportation route 1. The upper end of the opening/closing plate 3 is extended and suspended directly above the rotary blade 4, and the lower end is attached to the lower end of the lower opening 1'. A thrower transport path 2'' is formed between the side surface 5 and the opening/closing plate 3 in contact with the stopper 6 provided on the side surface 5 side, and the opening/closing plate 3 is rotated. The transport route switching device is formed so that the lower end of the plate 3 comes into contact with the above-mentioned side surface 5 to close the thrower transport route 2''.