JPS5818154Y2 - Paddy drying equipment - Google Patents

Description

[Detailed description of the invention] This invention has a short overall height, simple structure, and even though it is inexpensive, it uses a rotating drying disk that allows drying air to flow through it, thereby reducing the unevenness of paddy flow. The paddy is automatically fed in an even layer from the supply hopper onto the drying disk without causing drying, and the circulating drying air efficiently performs uniform drying without causing uneven drying, and the dried paddy is rotated to the supply hopper position. The present invention relates to a paddy drying device having the purpose of automatically discharging the dried paddy by rotating a drying disk.

Conventionally, a conditioning tank,
A ventilation drying cylinder and a take-out tank are sequentially arranged three-dimensionally, and inside the ventilation drying cylinder, hot air chambers and ventilation chambers are arranged vertically alternately so that a paddy flow path is formed between the chambers. The lower end of the channel is connected to the take-out tank via a pay-out roll, and by the intermittent rotation of the pay-out roll, the paddy flowing vertically in the paddy flow path is exposed to dry air flowing from the hot air chamber toward the exhaust chamber. A rice grain drying apparatus for drying rice grains is known as described in Japanese Patent Publication No. 48-36753 before the present application.

By the way, in conventionally known rice drying equipment, there are a tempering tank,
Since the ventilation drying cylinder and the take-out tank are stacked three-dimensionally, the overall height of the dryer becomes taller and larger than the capacity of the paddy, and it also complicates the movement and discharge of the paddy. This is done using a feed roll that is intermittently rotated by a transmission device, which is prone to failure and is expensive, and the multiple rows of paddy flow channels cause uneven flow of paddy during the flow process, which is the cause. This resulted in uneven drying and required considerable skill in the drying process.

Therefore, in order to solve the drawbacks of the above-mentioned known rice drying equipment, the present invention has a short overall height, a simple structure,
Moreover, even if it is a cheap product, the horizontal rotation of the drying disk, which is arranged to divide the inside of the dryer into an upper and lower part, automatically transfers the paddy onto the drying disk in an even layer without causing any uneven flow. It is an object of the present invention to provide a paddy drying device that can uniformly dry paddy by supplying and circulating drying air without causing uneven drying, and can also automatically discharge dried paddy outside of the machine by rotating a drying disk. This is the purpose.

In view of the above, and in order to achieve the above object, the present invention has a structure in which a rotary drying disk with a large number of vertical ventilation holes is arranged horizontally in a cylindrical dryer main body. The lower part of the drying disc is divided into a hot air chamber and the upper part is divided into an exhaust chamber, and within the exhaust chamber there is a supply hopper that opens along the tangent radial direction of the protrusion that has a horizontally elongated drop opening in the center of the drying disc. The front and rear horizontally elongated opposing walls that form the drop opening include a scraping wall whose lower end is close to the surface of the drying disk;
This paddy drying device has a flat wall whose lower end is separated from the drying disk so that a paddy flow path is formed between the paddy drying device and the drying disk. By simply rotating the drying disk, the rice is automatically supplied from the flow path to the entire surface of the drying disk without unevenness after it is in an even layer, and from the hot air chamber to the exhaust chamber, the drying air flowing from the hot air chamber to the exhaust chamber prevents uneven drying. In addition to being able to dry efficiently without causing any drying, the dried paddy can be dynamically discharged outside the machine by the rotating operation of the drying disk and the discharge action of the scraping wall. Since feeding and automatic discharging can be performed accurately using only the leveling wall and scraping wall, there is no need for conventional feeding rolls or complicated transmission devices, and the entire device can of course be manufactured easily and inexpensively. Not only can the height of the entire device be made as short as possible, but it also has the great effect of promoting the dust removal effect.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the rice drying apparatus according to the present invention will be described below as shown in the accompanying drawings.

In the drawing, reference numeral 1 denotes a long cylinder-shaped dryer body, and a drying disk 2, which has a number of vertically arranged ventilation holes 3 at appropriate height positions within the dryer body 1, can be rotated at low speed by a low-speed electric motor 4. The drying disk 2 is arranged on a shaft as shown in FIG.

An intake cylinder 7 containing a built-in hot air device 8 is connected to one side of the hot air chamber 5, and a dust exhaust cylinder 9 housing a suction exhaust fan 10 is connected to one side of the exhaust chamber 6. .

A protrusion 11 is formed at the center of the drying disk 2 to form a paddy/rice accumulation surface having an appropriate diameter.

A funnel-shaped supply hopper 12 whose upper outer diameter is the same as the inner diameter of the dryer body 1 is housed in the exhaust chamber 6 above the drying disk 2, and the lower part of the supply hopper 12 is flat. The horizontally elongated drop opening 13 is formed by forming the horizontally elongated drop opening 13 into a shape.

The flat horizontally elongated drop opening 13 has a length extending from the periphery of the protrusion 11 to the outer periphery of the dry disk 2, and is oriented in the tangential direction of the protrusion 11.

The front and rear oblong opposing walls forming the oblong falling port 13 have their lower ends proximate to the surface of the drying disk 2 as a scraping wall 14.
The lower end of the wall 16 is separated from the drying disk 2 so that a paddy flow path 15 is formed between the surface of the drying disk 2 and the surface of the drying disk 2. 15, and is supplied onto the rotating drying disk 2 in a uniform layer state.

17 has one end connected to the discharge window 18 opened in the dryer main body 1 at the set outer peripheral position of the horizontally elongated drop opening 13, and the other end connected to the elevator 1.
This is a discharge gutter connected to the bottom of No.9.

Note that a ventilation prevention material is provided between the dryer main body 1 and the drying disk 2 to prevent drying air from flowing unnecessarily through the gap between the two.

In addition, there is a ventilation hole 20 of an appropriate size in the lower wall of the supply hopper 12.
It is also possible to open the container and slowly cool the stored rice in a heated state to promote the refining action.

Next, its effect will be explained.

Now, with the paddy stored in the supply hopper 12, the hot air device 8 and the suction exhaust fan 10 are started, respectively, and drying air is circulated from the hot air chamber 5 to the exhaust chamber 6 via the drying disk 2.

Next, when the drying disk 2 is slowly rotated in the direction of the arrow, the accommodated paddy passes from the horizontally elongated drop opening 13 through the paddy channel 15, and is regulated to have a constant layer thickness by the flat wall 16, while being regulated to the drying disk. It flows out and is deposited on 2, and is dried by being exposed to the drying air flowing through the ventilation 713 during one rotation.

By the way, the scraping wall 14 on the opposite side facing the leveling wall 16 is located tangentially to the protruding part 11 for forming the unhulled rice accumulation surface, so that the paddy exposed to the drying wind does not reach the scraping wall 14. Once reached, the rotation of the drying disk 2 causes the drying disk to be dynamically discharged along the scraping wall 14 to the discharge window 18 side, and after being supplied to the elevator 19 from the discharge gutter 17, the supply hopper 1
2 and then dried again by the drying action described above.

Therefore, by repeating the drying process as described above, the rice can be dried evenly and in a short period of time without causing uneven running, drying, or circulation.

The dust mixed in the paddy deposited on the drying disk 2 is quickly and accurately removed because there is no resistance wall, and the entire supply hopper 12 can be preheated by coming into contact with the exhaust hot air.

Note that two or more horizontally elongated drop ports 13 may be provided on the drying disk 2.

[Brief explanation of drawings]

The drawings show one embodiment of the device of the present invention, and the first
2 is a longitudinal side view taken along line A--A in FIG. 1, and FIG. 3 is a cross-sectional plan view showing the operating state. 1...Dryer body, 2...Rotary drying disk, 3...Vent hole, 5...Hot air chamber, 6...・Exhaust chamber, 11... Protrusion, 1
2... Supply hopper, 13... Horizontal drop opening, 14... Scraping wall, 15...
Paddy flow path, 16... Leveled wall.

Claims (1)

[Scope of utility model registration request] Inside the cylindrical dryer body, a rotary drying disk with a large number of vertical ventilation holes is arranged horizontally, and the lower part of the drying disk is divided into a hot air chamber and the upper part is divided into an exhaust chamber, A supply hopper is disposed in the exhaust chamber, and the supply hopper is opened along the radial direction tangent to the protrusion, which has a horizontally elongated drop port provided at the center of the drying disk. A rice grain drying device characterized in that a scraping wall close to the surface of the drying disc and a flat wall whose lower end is separated from the drying disc so that a paddy flow path is formed between the drying disc.