JPS6010777B2 - Particulate matter cleaning method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for cleaning granular materials such as rice, wheat, and other grains for removing deposits on the surface and polishing the surfaces thereof. be.

Various methods and devices have been proposed and put into practice as means for removing surface deposits of this type of particulate matter (for example, bran on rice grains).

The present invention relates to a method and apparatus for cleaning particulate matter using a so-called belt, and aims to provide a cleaning method and apparatus for cleaning granular material that enables polishing of particles in addition to removing surface deposits. The details will be explained below with reference to the drawings. In the figure, reference numeral 1 denotes a tensioned endless belt that is suspended between a drive pulley 2 and an idler pulley 3 to form a rotating running system. In addition, the endless belt 1 is a combination of an inner belt la and an outer belt lb, and the outer belt lb has a . It has a pongee hair portion 4, and by employing such an endless belt 1, surface deposits can be removed and abrasive grains can be removed with high precision. Reference numeral 5 denotes a curved metal plate in the shape of a wire mesh with a large number of small holes 6 formed therein, and is placed in the middle of the rotating running system of the endless belt 1.

As a result, a curved transfer system is formed between the endless belt 1 and the endless belt 1. By allowing particulate matter (for example, rice grains 7) to enter the gap 8 between the endless belt 1 and the metal plate 5 (see FIG. 2), the portion in the bifurcated section is used as a curved transfer section for the particulate matter 7. Reference numeral 9 is integral with a cover, which is attached to the other side of the metal plate 5 and forms a sealing part 10, which is connected to suction/exhaust means 11 such as a blower or a vacuum pump. The small holes 6 of the metal plate 5 have a diameter that allows only the surface deposits 12 to pass through without allowing the granules 7 to pass through, and the metal plate 5 is formed of a punched steel plate, wire mesh, cast silk, or the like.

Further, instead of the metal plate 5, a perforated plate made of a thermoplastic synthetic resin plate may be used. In the figure, 13 is a dosing hopper for the particulate matter 7, and 14 is a collection hopper.

To explain the details of cleaning using rice grains 7 as a granular material, the rice grains 7 dispensed from the dosing hopper 13 enter the gap 8 between the endless belt 1 and the metal plate 5, and as the endless belt 1 rotates, the endless belt The outer belt lb of No. 1 and the metal plate 5 are moved within the time interval.

There is a rice grain 7 between the endless belt 1 and the surface of the metal plate 5.
Although the metal plate 5 can penetrate, the endless belt under tension by using the curved metal plate 5 substantially obtains a strong pressing state. The thin bristles 4 of the outer belt lb and the metal plate 5 are used to simulate sliding. Therefore, the bran that is the surface deposit 12 of the rice grain 7 is peeled off from the surface. In addition, since the rice grains 7 are pressed against the surface of the metal plate 5, the rice grains are polished within the Tsushima section. Since the sealing part 10 provided on the other side of the metal plate 5 is connected to the suction/exhaust means 11, the bran that is the surface deposit 12 passes through the many holes 4 and 6 and is forced to the outside from the sealing part 10. is taken out. The surface deposits 12 have been removed and the polished rice grains 7 are collected in a collection hopper 14. In the illustrated example, the granules 7 are transported from the top to the bottom, but the reverse may be possible.

Furthermore, although not shown, the endless belt 1 is provided with cleaning means such as a combination of a cleaning liquid and an ultrasonic generator, a beating means,
Brush means, drying/sterilization means, etc. can be freely combined with the silk. As explained above, according to the method and device for cleaning particulate matter according to the present invention, an endless belt having a pongee hair portion and a curved metal plate are placed against each other, and considerable pressure is applied by the fine hair portion of the endless belt between them. The granular material is transferred while being rubbed and polished by pressure, and the surface adhesion is peeled off within the time interval, and the peeled off adhesion is removed from the transfer system through a number of small holes pre-formed in the curved metal plate. In addition to peeling off the deposits and removing them, the combination of the endless belt's pongee hair and the curved metal plate can abrade the surface of the granules, which has many benefits. There is also the effect that it is easy to clean a large amount of granular materials and to continuously process abrasive grains.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of the cleaning device, and Fig. 2 is a schematic side view of the cleaning device.
An enlarged sectional view of part 0 shown in the figure, Figure 3 is the town in Figure 1.
FIG. 3 is an enlarged cross-sectional view taken along the m-line. In the figure, 1...endless belt, 4...pongee part, 5
......Curved metal plate, 6...Many small holes, 7...Particles, 10...Sealed part,
1 1... Intake/exhaust means, 12... Peeled surface deposits. Figure 1 Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. A metal plate with a large number of small holes is placed opposite to each other in the middle of the rotating running system of the endless belt to which tension is applied, and granules are interposed between the endless belt and the metal plate. The above-mentioned endless belt is used in a method of cleaning particulate matter in which the particulate matter is moved while being rubbed within a section to peel off surface deposits, and the peeled deposits are forcibly removed through small holes in a metal plate. The metal plate has a fine hair portion on its surface and is curved, and the fine hair portion of the endless belt is strongly pressed against the surface of the curved metal plate to remove particles attached to the surface between the endless belt and the metal plate. A method for cleaning granular materials characterized by polishing them while exfoliating them. 2 A flat or curved metal plate with a large number of small holes is placed opposite to the rotating running system of the endless belt to which tension is applied, and a particulate matter transport system is formed between the endless belt and this metal plate. At the same time, a cover body is provided on the other side of the metal plate to form a sealed part, and this sealed part is connected to an intake/exhaust means. The metal plate is a curved metal plate that generates a strong pressing force on the endless belt, and a curved transfer system is installed between it and the endless belt. A device for cleaning particulate matter, characterized in that: