JPS581354B2 - Kokumotutsufukansou souchi - Google Patents

Description

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

In general, circulation type ventilation drying equipment is operated by a method in which a drying chamber consisting of a flowing grain flow path is installed upright, and hot air is caused to flow in the lateral direction in the drying chamber to dry the grains.

In the present invention, a horizontal drying chamber is formed by arranging a ventilation guide plate and a perforated wall disk in a vertical relationship, and the drying chamber is formed by numerous ventilation diagonal holes bored in the disk and arranged in a radial manner. Hot air is injected onto the grains in the room to dry them, and the grains are transported by flight to an annular grain collection gutter provided at the peripheral end of the disk, and the grains in the grain collection gutter are further provided on the surface of the gutter. The aim is to develop and provide a high-performance device with a simple structure that blows air through oblique ventilation holes and discharges it to the outside of the machine.

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

In Fig. 1, numeral 1 is a grain chamber with a hopper-like cylinder;
A grain chamber is integrally formed by providing a ventilation drying section 2 in the lower part of the grain chamber 1 for drying the grains with hot air, and on one side thereof a grain lifting device 3 for supplying, discharging and circulating raw materials. It is a drying device.

The grain chamber 1 connects the grain supply port in the upper part of the cylindrical body and the discharge port of the grain frying device by a grain feeding trough 4, and also connects the grain outlet 5 provided at the lower part of the hopper-shaped cylinder at its periphery. A perforated wall in which a ventilation guide plate 6 with an annular ventilation window 8 provided at its end is installed horizontally, and numerous disc-shaped ventilation diagonal holes 11 are arranged radially below the guide plate 6. A disk 12 is fixedly installed horizontally to form a drying chamber 9 between the two plates 6 and 12, and an annular grain collecting groove 13 is provided at the peripheral end of the disk 12, and a drying chamber 9 is formed between the two plates 6 and 12. A suction fan 10 is attached to the outside of the drying chamber 7, and the fan 10 discharges hot air inside the drying chamber 9 to the outside of the drying chamber 9 through the exhaust window 8.
Its cross section is formed into a gutter shape, and numerous ventilation diagonal holes 11 are arranged on the gutter surface, and water flows into the groove 13 through a discharge port 15 connected to a discharge gutter 14 provided on one side of the groove 13. The grains are transported by flight by the blowing force from the oblique hole 11, and the grains in the discharge gutter 14 flow down and are supplied to the grain lifting device 3, and the grains are again conveyed through the upper grain feeding gutter 4. It is configured to be returned to the grain chamber 1 and circulated through the device for drying.

A hot air generator 16 is provided in the lower part of the drying chamber 9 to supply hot air to each diagonal hole 11 of the porous wall disc 12 and the grain collecting groove 13. A support 18 is erected at the center of the plate 12, and a conical equalizer 17 is attached to the upper end of the support 18.

Reference numeral 19 denotes a switching valve provided in the grain feeding gutter, 20 a discharge port provided in the grain feeding gutter for discharging grains to the outside of the machine, 21 a supply hopper provided in the grain lifting device, and 22 an electric motor.

Since the present invention has the above-described configuration, when the raw material grain (hulled rice) is put into the supply hopper 21 of the grain frying device 3 and the hot air generator 16 is ignited to start the device, the unhulled rice is transferred to the grain frying device 3. At the same time, the unhulled rice in the grain room 1 is sent to the grain outlet 5 through the equalizer 17.
The unhulled rice on the disk 12 is moved toward the edge of the plate by the hot air blown upward from the lower surface of the numerous oblique ventilation holes 11 on the plate surface. radially,
The grains are conveyed in a floating manner to form an appropriate grain layer, and each grain is repeatedly moved up and down or turned over, and is uniformly dried by being exposed to hot air all around it. As the grains flow upstream to the upper lint window 8, they fall under their own weight and accumulate in the grain collecting groove 13.

The unhulled rice in the grain collecting groove 13 is transported by flight toward the discharge port 15 provided in the groove by the wind blowing out from the numerous ventilation oblique holes 11 provided in the gutter surface, and The grains flow down the discharge gutter 14 provided in the section and flow into the supply section of the grain frying device 3.

Further, the unhulled rice fried by the grain frying device 3 flows down the grain feeding gutter 4, is supplied to the grain chamber 1, and is circulated within the device again.

The unhulled rice that has reached a specified moisture level through circulation drying is
The outlet 20 is opened by switching the switching valve 19 provided in the grain feeding gutter 4.
It will be ejected from the aircraft and sent to the next stage.

As described above, the grain through-rotting drying device of the present invention allows the unhulled rice flowing down from the grain outlet in the center of the drying chamber, which is horizontally formed by the ventilation guide plate and the porous wall disk, to the porous wall disk. Each paddy rice is dried by the hot air that blows out from the countless oblique ventilation holes provided radially on the surface, and is transported radially and discharged into the annular collecting groove provided at the peripheral end of the disk, so that each paddy rice is As it moves up and down or flips over, it blows hot air around its entire circumference without causing dry spots, and the height of the drying chamber is lowered, making the entire device more compact. Since the blast air from the ventilation diagonal holes installed in the machine transports the particles to the exhaust port side and discharges them out of the machine, a mechanical discharge device such as a discharge valve is installed to completely prevent crushed and damaged particles that occur with conventional devices. In addition, the structure of the device can be simplified.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. Fig. 1 is a partially cutaway side view of the drying device, Fig. 2 is a perspective view of its porous wall disk, Fig. 3 is a perspective view of its grain collecting groove,
FIG. 4 is a plan view of the porous wall disk, and FIG. 5 is a partially enlarged sectional view thereof. 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...・Machine wall, 8...Exhaust window, 9...Drying room, 10...Suction fan, 11...Ventilation diagonal hole,
12... Porous wall disk, 13... Grain collecting groove, 14...
Discharge gutter, 15...Discharge port, 16...Hot air generator,
17... Equalizer, 18... Strut, 19... Switching valve, 20... Discharge port, 21... Supply hopper, 22...
··Electric motor.

Claims (1)

[Claims] 1. In a drying device in which a ventilation drying section equipped with a porous wall disk and a hot air generator is provided at a lower position of a grain chamber in which a grain discharge port is provided at the bottom of a hopper-shaped cylinder, the grain discharge port of the grain chamber is A perforated wall circle with a ventilation guide plate horizontally installed around the circumference with an annular ventilation window at its peripheral edge, and a number of ventilation oblique holes radially formed on the plate surface below the guide plate. A drying chamber is formed between the two plates by fixing the plates horizontally, and an annular grain collecting groove is provided at the peripheral end of the disc, and grains are placed on the surface of the collecting groove on the outlet side thereof. A grain ventilation drying device characterized by having numerous ventilation oblique holes for conveying grain by flight.