JPS61101276A - Vertical type selector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement in a vertical sorting device for sorting grains such as rice, wheat, etc., and separating them into sized grains and small grains.

Conventional technology and its problems Conventional vertical sorting equipment consists of a spiral shaft with spiral ribs that rotates in a forward direction, which is fitted into a perforated wall sorting tube that rotates in the opposite direction, and rotates at different speeds. The structure described in Japanese Patent Publication No. 14269/1983 is known, in which the grains supplied to the grate surface are sent once by high-speed rotational force, and small grains are pulled out and sorted through the holes of a porous wall sorting cylinder by centrifugal force. In addition, in other cases, a rotary sorting body integrally formed by fitting a helical body consisting of helical wing pieces into a porous wall sorting cylinder, which was previously filed by the present applicant, is rotated or reciprocated. A structure described in Japanese Patent Application No. 59-102800 has been proposed in which centrifugal force is applied to the grains supplied to one side of the wing to sort out the grain size in the same manner as described above. The sorting action of these devices utilizes the centrifugal force applied to the grains as mentioned above, and since the centrifugal force is induced by contact rIl friction with ribs or winglets, Alternatively, in the case of a grain layer with a small amount of grains on the wing, the centrifugal force applies to almost the entire grain, the grain flow is activated, and the sorting action progresses; In the case of a grain bed, the grains on the upper surface block the centrifugal flow action of the lower grains, reducing the grain flow force across the entire rib or wing surface, resulting in a significant reduction in sorting efficiency. There was a strong demand for improvement of the device.

Purpose of the Invention In view of the above points, the present invention provides a large number of vertical agitation resistors for grains having a unique structure between the blades of a spiral body, thereby applying a stirring force to the grain layer formed on the helical blade. The centrifugal force is efficiently applied to activate the grain flow force in the grain layer as a whole, thereby increasing the flow rate of grains and improving sorting efficiency, as well as reducing the rotation of grains. - The purpose is to provide a high-performance vertical sorting device that mass-produces high-quality selected grains by implementing an efficient sorting action that promotes revolution, etc.

Structure of the Invention The vertical sorting device of the present invention includes a spiral body fitted into a porous wall sorting cylinder to form a sorting rotary body, and the sorting rotary body is erected and pivotally attached to a rotating vertical shaft. The sorting rotor is configured to supply a mixture of large and small grains from the upper or lower part of the sorting rotor, discharge only the small grains out of the sorting cylinder, and discharge large grains to the lower or upper part of the sorting rotor. The sorting device is equipped with a drive device that rotates or reciprocates, and has a configuration characterized in that a large number of vertical grain stirring resistors are provided between the wings of the spiral blades of the spiral body.

DESCRIPTION OF EMBODIMENTS The structure of the present invention will be explained based on FIGS. 1 to 3.

FIG. 1 shows a vertical sorting and weighing device for grains, which is constituted by a vertical sorting device 1 consisting of a sorting rotary body 2 and a grain lifting device 4 on which a grain sizing tank 3 for weighing is suspended.

The vertical sorting device 1 (see Fig. 1) has a sorting rotating body 2 erected inside a vertical machine frame 7 which has a supply hopper 5 in the upper part and a grading discharge port 6 in the lower part. The sorting rotary body 2 is pivotally attached to a rotating vertical shaft 8, and is integrally formed by fitting a spiral body 9, which is formed by winding spiral wing pieces 9A, into a porous wall sorting tube 1o, and the sorting tube 10 An impeller 11 for particle sizing scraping is provided at the lower end of the
are installed and rotate integrally, and the sized particles at the inner bottom of the sorting cylinder 10 are discharged from the sized particle outlet 6 through the lower flow path 2 by the rotation of the impeller 11. A driving device 13 that rotates or reciprocates is connected, and blades 18 for scraping out fine particles are provided on the circumferential surface of the porous wall sorting cylinder 10, and fine particles are removed by rotation of each blade 15. Fine grains such as immature grains and crushed grains at the bottom of the chamber 14 are discharged from a fine grain discharge vA16, and the illustrated sorting cylinder 10 and spiral groove 9 are formed to rotate in the same direction at different speeds. . 17 is a pillar of the vertical separate frame 7; 18 is the particle size regulating tank 3;
This is a weighing device installed at a lower position.

Next, the spiral body 9 is provided with a large number of vertical stirring resistors 19 for grain between the spiral blades 9A,
FIGS. 2 and 3 illustrate a case where a large number of the stirring resistors 19 are arranged concentrically at equal intervals between each blade of the spiral blade 9A.

The operation of the above configuration will be explained below.

When a mixture of large and small grains (a mixture of immature grains, crushed grains, fine grains, and regular grains) is supplied to the supply hopper 5 of the vertical sorting device 1 and the device is started, the porous wall sorting tube 10 and the spiral body 9 are separated. rotate in the same direction at different speeds, so that the mixed grains flow down from the feed hopper 5 and flow onto the helical blades 9A of the inclined helical body 9 to form a thin grain layer.
Each grain receives a centrifugal force due to the contact friction force with the rotating spiral blades, and is urged toward the porous-walled sorting tube 10, and the grain flow force causes the grains to drift into scattered pieces, removing the mixed small grains. The fine particles are transferred to the external fine particle chamber 1 through the holes in the porous wall of the sorting cylinder 10.
4, but as mentioned above, in the case of a grain layer with a moderate amount of grains, the grains on the upper layer block the centrifugal flow action of the lower grains, reducing the overall grain flow force. Therefore, in the present invention, a large number of vertical grain stirring resistors 19 provided between the spiral blades 9A of the spiral body 9 are arranged to reduce the grain layer. The grains are inserted into the grain layer appropriately and come into contact with the grains in the upper and lower parts, and each grain is agitated by the contact friction and is turned over while applying centrifugal force from one side of the wing, so that the grain flow force of the entire grain layer is As the grains are corrected and increase in size, the rotation and revolution of the grains are promoted and they accumulate on the sorting tube surface, and the grains are accumulated on the sorting tube 1.
Fine particles are actively discharged from the holes in the porous wall, and the sorting efficiency is improved. In addition, the grains separated from the fine grains on the 10th surface of the sorting cylinder drift in the opposite direction in an avalanche-like manner and in a revolution, and the small grains mixed in with the replaced grains due to this drift in the opposite direction are Due to the next centrifugal force that is applied, the small grains flow down from the through hole into the fine grain chamber 14 in the same manner as described above, and the small grains accumulated at the bottom of the fine grain chamber 14 are finely chopped by the rotating fine grain scraping blades 15. The grains discharged from the grain discharge port 16 and on one side of the blade flow down inside the sorting rotary body 3 and accumulate at the bottom, and are transferred to the grain size scraping impeller 1.
By the rotation of 1, the grains are discharged from the sized discharge port 6, and
The grain is fried by the grain lifting device 4 and temporarily stored in the grain grading tank 3 in the upper part.

FIGS. 4 and M5 show another embodiment of the vertical stirring resistor 19, and FIG. ... are arranged respectively, and FIG. 5 shows three stirring resistors 19.
... are arranged in an inclined manner and a plurality of resistor groups are arranged between the blades of the spiral body 9. It is extremely suitable for sorting the grain layer with increased grain layer.

6 and 7 illustrate grain flow conditions in a spiral body without a stirring resistor of the conventional device, and FIGS. 8 and 9 illustrate grain flow conditions in a spiral body with a stirring resistor of the present device. When the flow state is illustrated and the two are compared on the diagram, the former grain layer flows in a flat top surface, creating voids at the top of the grain layer and reducing the use of the porous wall surface, whereas the latter spiral shape flows. , each grain is stirred by contact with the stirring resistor, and centrifugal force is applied from one side of the blade while turning the grains. As a result, the grain flow force in the entire grain layer increases, and the grains are pushed to the inner peripheral surface of the sorting tube. It is easy to understand that since the particles scatter widely and collide cumulatively, the porous wall surface of the sorting tube is effectively used, and the sorting efficiency is improved.

Moreover, FIGS. 10 and 11 illustrate the case where the stirring resistor is cut as appropriate and the resistor pieces 2o are respectively planted in the upper and lower parts between the blades of the spiral body, and FIG. and FIG. 13 shows that the cross section of the stirring resistor is formed into a strip shape,
The figure shows a case where a plurality of the strip-shaped resistors 21 are arranged on the wing surface of a spiral body.

It should be noted that the rotary sorting body is not limited to the structure shown in the drawings, and may be modified as appropriate.
They are used by appropriately selecting mutually opposite rotation or reciprocating rotation, and may also be used by stopping the rotation of the porous wall sorting tube. In some cases, the sorting rotary body feeds grain from below the rotary body and discharges the sorted granules from above the rotary body.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a large number of vertical grain stirring resistors having a unique structure are provided between the blades of the spiral body, thereby stirring the grain layer formed on the spiral blade. By efficiently applying force and centrifugal force to activate the grain flow force as a whole, it is possible to increase the grain flow rate and improve the sorting efficiency, as well as to control the rotation and revolution of the grains. It has the effect of promoting efficient sorting and mass production of high quality selected grains.

[Brief explanation of the drawing]

Fig. 1 is a side view of the vertical sorting and weighing device showing the main part in cross section, Fig. 2 is an enlarged side sectional view of the main part of the spiral body, Fig. 3 is a plan sectional view of the spiral body, Fig. 4 5 is a plan cross-sectional view of another embodiment, FIG. 6 is an explanatory view of an enlarged side cross-section of a main part of a known spiral body, and FIG. 7 is an explanatory view of a plan cross-section of the spiral body,
FIG. 8 is an explanatory diagram of an enlarged side cross-section of the main part of the helical body of the present invention, and FIG.
The figures are explanatory diagrams of the plane cross section of the spiral body, Figure 10 and Figure 1.
FIG. 2 is an enlarged side sectional view of a main part of another embodiment of the spiral body, and FIGS. 11 and 13 are plan sectional views of the spiral body.

Claims (1)

[Claims] Fitting the spiral body into a porous-walled sorting cylinder to form a sorting rotary body, and erecting the sorting rotary body and pivotally attaching it to a rotating vertical shaft;
The sorting rotation is configured such that a mixture of large and small grains is supplied from the upper or lower part of the sorting rotor, only small grains are discharged from the sorting tube, and large grains are discharged to the lower or upper part of the sorting rotary body. A vertical sorting device equipped with a drive device that rotates or reciprocates a body, characterized in that a large number of vertical stirring resistors for grains are provided between the wings of the spiral blades of the spiral body. Device.