JPS581353B2 - Kokumotsutufukansou souchi - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in grain drying equipment.

In the ventilation drying of grain, a device is provided in which a perforated wall disk that blows air is installed horizontally and rotatably around the shaft, and the disk is rotated to dry the raw material paddy rice placed thereon and convey it to the discharge side. The main purpose of this is that a ventilation drying section equipped with a perforated wall disk and a hot air generator is installed in the lower part of the grain chamber, which has a grain discharge port at the bottom of the hopper-shaped cylindrical body. In the drying device, a disc-shaped ventilation guide plate with an annular ventilation window provided at the peripheral edge thereof is installed horizontally around the grain discharge port of the grain room, and a porous wall is provided at a position below the guide plate. forming a drying chamber between the two wall plates by rotatably pivoting a disc;
The grain ventilation drying apparatus is characterized in that a plurality of gutter plates are fixed to the peripheral edge of the disk, and an annular grain collecting gutter into which the gutter plates fit is provided.

The present invention will be explained with reference to embodiment figures.

Reference numeral 1 denotes a grain chamber whose lower part is shaped like a hopper;
A ventilation drying section 2 is provided at the bottom of the drying section 2, and a grain frying device 3 for supplying, discharging, and circulating the raw paddy rice is provided on one side of the ventilation drying section 2.
This is a grain ventilation drying device that is integrally formed by standing upright.

The grain chamber 1 has a supply port in the upper part and is connected to the discharge part of the grain frying device 3 through a grain feeder 4, and also has a grain discharge port 5 in the lower part of the hopper-shaped cylinder. A circular ventilation guide plate 6 is installed horizontally around the periphery, the edge of the plate is extended close to the fuselage side wall 7, and an annular ventilation window 8 is formed between the side wall 7 and the guide plate 6. The hot air in the drying chamber 9, which will be described later, is sucked and discharged through the exhaust window 8 by a suction fan 10 provided on the side wall 7, and the grain discharge port 5 has a vertical axis approximately at its center. 11 is rotatably erected, and a circular porous wall disk 12 with a large number of ventilation holes 12a is provided below the guide plate 6 at appropriate intervals. 11 to form a drying chamber 9 between the two wall plates 6 and 12, and the disc 12
A rotation mechanism 13 is provided at the lower part of the shaft and connected to the vertical shaft 11.

14 is a hot air generator, and 15 is an electric motor.

Further, a plurality of scraping plates 18 are provided at the peripheral edge of the disc 12.
..., and an annular grain collecting groove 16 into which the scraping plate 18 fits is provided to collect the grains flowing down from the disk 12, and the grains in the groove are removed by the movement of the scraping plate 18. The grains in the discharge gutter 17 flow down the gutter and are supplied to the grain frying device 3.

Moreover, the vertical shaft 11 protrudes into the cylindrical body of the upper grain chamber 1.
A conical equalizer 20 is pivotally attached to the tip of the extended shaft portion 19 .

21 is a supply hopper of the grain lifting device, 22 is a switching valve of a grain feeding trough, and 23 is a grain discharge port.

With the above-mentioned configuration, when the raw paddy rice is put into the supply hopper 21 of the grain frying device 3 and the hot air generator 14 is ignited to start the device, the paddy rice is fried and supplied to the grain compartment 1. At the same time, by the rotation of the equalizer 20, the unhulled rice is transferred from the grain outlet 5 to the porous wall disk 12 provided in the lower drying chamber 9.
Flows down evenly to the top.

In the drying chamber 9, as the disk 12 rotates, the unhulled rice flows centrifugally on the plate surface to form a flat grain layer, and the grain layer gradually moves outward due to the centrifugal force. The grains are transported and flow down from the peripheral edge of the disk 12 into the annular grain collection groove 16 .

During this time, the hot air generated by the hot air generator 14 in the ventilation drying section 2 is blown upward from the lower side through the numerous ventilation holes 12a provided in the disk 12 by the suction action of the suction fan 10 provided on the side wall 7. However, since the upper part of the drying chamber 9 is blocked by the ventilation guide plate 6, the blast air flows laterally, passes through the annular exhaust window 8, and is removed to the outside of the machine via the suction fan 10.

Then, by the blowing action from the through holes 12a, the unhulled rice in the grain layer is repeatedly moved up and down or reversed, respectively, and is dried by heat.

In addition, the unhulled rice that has flowed down into the grain collection groove 16 is collected in a discharge gutter 17 by a scraping plate 18 that rotates within the groove, and is discharged from the machine by flowing down the gutter 17.

Further, the drying action of the grain layer increases the sensitivity of the hot air to such an extent that the unhulled rice floats, and also increases the rotational speed of the disk 12, so that the hot air blowing out from the through holes 12a is shaped like a swirl. It is also possible to perform so-called fluidized bed drying, in which the grain layer is dried while being rotated and conveyed in a jet direction in the outer circumferential direction.

In some cases, the porous wall disk 12 is connected to a rotating mechanism, a swinging mechanism, etc., and performs ventilation drying while rotating or swinging.

Although the perforated wall disk 12 is shown as a flat plate attached to the vertical shaft 11, it may also be installed in the shape of a saucer with its outer peripheral edge raised.

As the ventilation holes 12a, round holes, oblique holes, strip holes, etc. are appropriately selected and used.

As described above, the grain ventilation drying apparatus of the present invention can appropriately perform drying operations by various methods such as fluidized bed drying according to various conditions of raw materials, and since the drying chamber is formed in a horizontal structure,
This has practical effects such as lowering the height of the dryer, making the entire device more compact, simplifying the structure, and making handling easier.

[Brief explanation of drawings]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a sectional view showing a partial side view of the drying device of the present invention;
FIG. 2 is a perspective view of the perforated wall disc, FIG. 3 is a partially cutaway side view of the main part thereof, and FIG. 4 is a perspective view of the equalizer. DESCRIPTION OF SYMBOLS 1... Grain room, 2... Ventilation drying section, 3... Grain frying device, 4... Grain feeding gutter, 5... Grain discharge port, 6... Ventilation guide plate, 7...・Airframe side wall, 8...Exhaust window, 9...
・Drying room, 10... Suction fan, 11... Vertical axis, 1
2... Porous wall disk, 12a... Breathable through hole, 13.
... Rotating mechanism, 14... Hot air generation chamber, 15... Electric motor, 16... Grain collecting groove, 17... Discharge gutter, 18...
Scraping plate, 19... Extension shaft portion, 20... Equalizer, 21
...Supply hopper, 22...Switching valve, 23...Grain discharge port.

Claims (1)

[Claims] 1. In a drying device including a general drying section equipped with a porous wall disk and a hot air generator at a lower position of a grain chamber in which a grain discharge port is provided at the lower part of a hopper-shaped cylinder, the grain discharge port of the grain chamber A disk-shaped sleep guide plate with an annular exhaust window provided at the peripheral end is installed horizontally around the guide plate, and a perforated wall disk is rotatably attached to the lower part of the guide plate. A drying chamber is formed between the two wall plates, a plurality of scraping plates are fixed to the peripheral edge of the disk, and an annular grain collection gutter into which the scraping plates fit is provided. Grain ventilation drying equipment.