KR101676167B1

KR101676167B1 - A bean sorting device having multiplr cleaning means

Info

Publication number: KR101676167B1
Application number: KR1020150062565A
Authority: KR
Inventors: 강옥자; 김상완
Original assignee: 강옥자; 김상완
Priority date: 2015-05-04
Filing date: 2015-05-04
Publication date: 2016-11-14

Abstract

The present invention relates to a bean sorting device including a multi-selection unit. More specifically, the present invention relates to a bean sorting device including a multi-selection unit, designed to undergo the following steps: primarily selecting, after the completion of a threshing process, light foreign substances such as dust, husk, or empty heads by means of a blower, from raw beans which are inserted into the sorting device and are mingled with beans with different size, dust, husk, empty heads, pebbles, and Japanese lady bell; secondarily weeding out large Japanese lady bell while sorting out the beans by size; and tertiarily selecting the selected beans again using a belt selection device, so as to release atypical broken beans and pebbles.

Description

TECHNICAL FIELD [0001] The present invention relates to a bean sorting device having a multi-

The present invention relates to a bean sorting apparatus having multiple selection means, and more particularly, to a soy bean sorting apparatus having multiple bean means, and more particularly, The raw soybeans, such as dust, peel, chaff, etc., are firstly selected through a blower, the soybeans are sorted by size, the bulky sashes are secondarily selected, and the soybeans sorted by size are returned to a belt sorting device The present invention relates to a bean sorting apparatus having a plurality of bean spouts, which are adapted to be discharged through a tertiary selection line through a plurality of beans,

Soybeans are called beans, including beans as well as various kinds of beans. Most of these beans maintain their normal shape during the process of threshing, but they are damaged by some thixotropic agents, as well as beans, chaff, dust And the like are mixed with each other.

It is a sorting device to sort the soybeans according to their thickness while removing foreign matter mixed with the beaten soya beans. Such a soybean sorting device is conventionally divided into an integrated type and an independent type in a thresher.

In the case of the integrated thresher, since it is merely a function for separating the beans and the husks, the beans can not be separated in size or broken, so that the soybeans may be sorted, broken, or foreign matter by using a separate sorting device have.

The soybean sorting apparatus as described above is disclosed in Korean Patent Publication No. 10-0532854, and a representative example thereof will be described with reference to FIG.

The bean sorting apparatus 1 is provided with a feed hopper 3 for feeding beans to be sifted on the upper part of a feed hopper 2 provided in a box shape, So that the beans can be evenly dispersed.

In order to sort beans by size, first, second and third sorting plates (5, 6, 7) are provided in an inclined manner sequentially below the vibrating sorter (4) 9, 10 for discharging the selected soybeans are provided at the lower side of the lower portions 5, 6,

The discharge guides 8, 9 and 10 are connected to the discharge ports 11, 12 and 13 provided below the charging hopper 2 by a transfer line 14. The vibration separator 4 is provided with a blowing means 15, And the foreign matter supplied together with the soybeans to be sieved can be discharged through the foreign matter discharge port 17 by the wind.

The bean sorting apparatus to which the conventional technique as described above is applied requires the worker to input the beaten soybeans to the input hopper provided above the feed hopper so that a considerable labor is required when there are many beans to be sorted And causes considerable fatigue to the operator.

In addition, when sorting the beans by size, the beans are rolled and shifted through the vibration separator or the first, second and third sorting plates installed at an inclined angle. However, according to the degree of inclination, A phenomenon of rolling temporarily in the direction of the discharge port occurs, which makes precise sorting difficult.

In addition, although the blowing fan 15 splashes light beans such as beans and dust through the duct 2 and discharges it to the outside through the opening 17, this is because the light foreign matter in the structure is scattered by the vibration dividing mechanism 4 Even if it is a light foreign matter, some of the light is lost to the vibration dividing mechanism 4 and is discharged to the discharge ports 11, 12 and 13 through the primary and secondary sorting mechanisms 5 and 6, There is a problem that the efficiency is lowered.

Prior Art 1: Korean Patent Registration No. 10-0532854

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide a bean sorting apparatus having a multi-bead sorting means, in which a single bead sorting apparatus and a sorting apparatus are integrated into one apparatus, The basic task is to provide a step-by-step selection device according to the car.

That is, light foreign substances such as dust, bark, chaff, etc. are firstly selected through a blowing fan, and soybeans are sorted by size, while large-sized soybeans are secondarily selected, and soybeans sorted by size are returned to a belt sorting device And a plurality of cleaning means for discharging the broken beans, stones, and the like by the third selection.

In addition, it is an object of the present invention to design a square wire apparatus according to the difference in specific gravity so as to have a structure capable of maximizing square wire efficiency.

The bean sorting apparatus having a multiple sorting means according to the present invention includes a main body 100 including a feed hopper 120 into which raw beans are fed and a bucket elevator 130 which feeds raw beans, The main body may include a primary cleaning means 200 formed at a bottom of the loading hopper to remove light foreign substances contained in the raw soybeans flowing from the loading hopper to the bucket lever, A secondary sorting means 300 for sorting the raw beans transferred from the bucket lifter by size and sorting out bulky foreign substances, a sorting means 300 for sorting the beans, which are formed at the bottom of the secondary sorting means, And a tertiary cleaning means (400) for filtering the irregular shaped foreign substances contained in the selected soybean.

The main body 100 includes a base frame 110 provided in a rough box type having a moving means 101 on a bottom surface thereof, a hopper 120 formed in the middle of the base frame to feed raw beans, A bucket elevator 130 for conveying the raw soybeans conveyed from the input hopper to the secondary selecting means 300, a discharge guide 140 (141, 142) for discharging the beans sorted by size from the secondary selecting means 300, 142, 143 and 144, and a second discharge port 150 through which the selected discharge is discharged from the secondary cleaning means 300.

In addition, a guide pipe 160 for guiding the raw beans to the bucket elevator 130 is formed at the bottom of the feed hopper 120, and the amount of raw beans fed into the feed hopper between the feed hopper and the guide pipe The feed amount of the raw beans fed to the secondary feeder means 300 through the bucket elevator can be controlled by providing the feed adjuster 170 for controlling the feed amount of the raw soybean.

The broken bean discharge guide 141 and the beak discharge guide 142 are formed to be inclined in the forward direction of the main body below the secondary sorting means so as to collect the selected beans, The soybean discharge guide 144 is formed in the direction of the tertiary cleaning means from below the secondary cleaning means.

The primary cleaning means 200 includes a blowing fan 210 formed at the bottom of the inlet hopper 210, a tuyere 220 connected to the blowing fan to guide the wind, a foreign matter 220 connected to the tuyere 210, And a tug selection pipe (230) for guiding the tug pipe (230).

The tuyere 220 may further include a tuyere regulating valve 221 to select the wind pressure by controlling the blowing amount of the blowing fan toward the tuyere selective pipe 230. Thus, So that the soybeans are prevented from flowing out to the outside through the tuyere selector pipe (230).

In addition, the secondary selecting means 300 includes a net body 310 provided in a cylindrical shape on the primary selecting means,

And a screening net 320 in which screening holes 330, 321, 322, 323, and 324 having different sizes are formed in each of the sections of the net body, and the netting body is formed to be inclined in a direction in which a bottoming outlet is formed do.

Further, the size of the sorting holes 330 (321, 322, 323, and 324) formed in the sorting net is increased from the bucket elevator side toward the opposite side.

The third selecting means 400 includes a bracket 410 formed at the front of the main body, a hatch 420 formed at the rear of the main body, a belt frame hingedly connected to the bracket and the hatch, A belt conveyor 430 including a belt 431 and a belt 432, a bean discharge guide 440 formed in front of the belt frame, and a foreign matter discharge guide 450 formed behind the belt frame.

Further, a guide hopper 460 is further provided on the upper portion of the belt frame to prevent the sorting beans falling from the secondary cleaning means from being thrown from the belt conveyor by the falling speed and scattered out of the belt.

A separating wall 433 is formed at the center of the belt so as to prevent the beans falling down by size from being sorted by the second selecting means from mixing with each other on the belt. 431 in the longitudinal direction of the belt to prevent foreign matter and beans from being inserted.

In addition, the belt frame may further include a slope 470 at the bottom of the belt, wherein the slope includes a roller shaft 471 fixed to the belt frame and a roller 427 formed at the outer diameter of the roller shaft do.

The elevator shaft 420 includes an upper support shaft 421 hinged to the bottom of the belt frame, a lower support shaft 422 connected to the base frame 110, a rotation driving shaft 443-1 fixed between the upper and lower supports, And a handle 443-2 connected to the pantograph type jacquier 443 connected to the pantograph type jacquard 443-2.

According to the present invention, there is provided a bean sorting apparatus having a multi-rectifying means according to the present invention. The bean sorting apparatus having the multi-rectifying means according to the present invention integrates the rectifying apparatus and the sorting apparatus into one apparatus, There is an effect that this is maximized.

That is, light foreign matter such as dust, bark, chaff, etc. is firstly selected through a blower fan, and soybeans are sorted by size, while the bulky halves are secondarily selected, and soybeans sorted by size are re- By selecting the third bean, broken soybean, etc., the raw beans are selected, and various kinds of foreign substances and broken beans mixed in the raw beans are completely filtered out, so that it is possible to precisely sort through a single sorting operation, It has the effect of not working.

Particularly, the structure of the belt sorting apparatus for sorting the broken beans, the stones, etc. having the greatest specific gravity is improved, so that a perfect line can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall perspective view of a bean sorting apparatus equipped with a multi-
FIG. 2 is a front view of a bean sorting apparatus equipped with a multiple sorting means according to the present invention.
FIG. 3 is a rear view of a bean sorting apparatus having a multiple sorting means according to the present invention.
FIG. 4 is a graph showing the projection of the bean sorting apparatus equipped with the multi-
5 is a side view of a bean sorting apparatus having a multiple sorting means according to the present invention.
6 is a perspective view of one side of a third sorting means of a bean sorting apparatus having a multiple sorting means according to the present invention;
7 is a perspective view of the other side of the third selecting means of the bean sorting apparatus provided with the multi-selecting means according to the present invention;
8 is a front view of a belt conveyor of a bean sorting apparatus equipped with a multi-line means according to the present invention
FIG. 9 is a perspective view of a belt conveyor part of a bean sorting apparatus having a multiple sorting means according to the present invention.

The term used in the present invention is a general term that is widely used at present. However, in some cases, there is a term selected arbitrarily by the applicant. In this case, the term used in the present invention It is necessary to understand the meaning.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

1 to 9, there is shown a bean sorting apparatus having a multiple sorting means according to the present invention. The bean sorting apparatus includes a main hopper 120 for feeding raw beans and a bucket elevator 130 for conveying raw beans, (100), a primary rectifying means (200) formed at the bottom of the feeding hopper for filtering out the lightest dust, peel, and sides among the foreign substances contained in the raw soybeans, A second selection means 300 for filtering out large volumes while sorting, a third selection means 300 for filtering foreign substances such as broken beans and stones contained in soybeans formed at the bottom of the secondary selection means, (400).

1 and 2, the main body 100 includes a base frame 110 provided in a rough box type having a moving means 101 on a bottom surface thereof, a main frame 100 formed in the middle of the base frame, A bucket elevator 130 for conveying the raw soybeans conveyed from the input hopper to the secondary selecting means 300, a bean extractor 130 for extracting the selected beans from the secondary selecting means 300, A discharge guide 140 (141, 141, 142, 143, 144), and a discharge port 150 through which the selected discharge is discharged from the secondary cleaning means 300.

By forming the feeding hopper 120 in the middle of the base frame, it is easy for the operator to insert the raw beans, thereby reducing labor.

In addition, a guide pipe 160 for guiding the raw beans to the bucket elevator 130 is formed at the bottom of the feed hopper 120, and the amount of raw beans fed into the feed hopper between the feed hopper and the guide pipe The feed amount of the raw beans fed to the secondary feeder means 300 through the bucket elevator can be adjusted.

Here, the bucket elevator 130 is driven by receiving the power of the motor M1 formed on the bottom surface of the hopper.

The discharge port 140 includes a broken bean discharge guide 141, a small discharge outlet 142, a middle discharge outlet 143 and a discharge port 144 and a partition 145 partitioning the discharge outlet .

The broken soybean discharge guide 141 and the soybean discharge guide 142 are formed as a broken soybean outlet and a soybean discharge so as to be inclined in the forward direction of the main body below the secondary sorting means to collect the selected soybean, The middle-head discharge guide 143 and the soybean discharge guide 144 are formed in the direction of the tertiary selecting means from the lower side of the secondary selecting means and pass the tertiary selecting line again.

Here, broken soybeans and soybean curd are only performed in the second round, and medium soybeans and soybean are described in the third round soybean curd, but it is possible that the ordinary technician can select the second or third round according to necessity, It is also shown that the size classification can be designed in several stages.

In addition, the partition walls are provided for each section so as to be substantially in contact with the bottom surface of the secondary sorting means, so that the selected beans are directed to the discharge guide without being mixed with each other.

In addition, the front of the partition is connected to the discharge guides 141 and 142 protruded forward of the main body and the discharge guides 143 and 144 directed to the tertiary sorting means so that the selected beans are discharged.

The discharge guides 143 and 144 further include extension pipes 143-1 and 144-1 extended toward the conveyor belt 430 to be conveyed.

In addition, the upper portion of the base frame may further include an opening / closing cover 180 for maintenance of the secondary selecting means, and a transparent window may be further provided on the opening / closing cover.

1 to 3, the primary cleaning means 200 includes a blowing fan 210 formed at the bottom of the loading hopper, a tuyere 220 connected to the blowing fan to guide the wind, (230) for guiding foreign matter falling from the input hopper.

The tuyere 220 may further include a tuyere control valve 221 to control the wind pressure of the wind generated by the blowing fan and directed to the tuyere selective pipe 230 to select the wind pressure, So that the raw soybeans falling from the fermentation duct 230 do not flow out to the outside.

Also, the tuyere selection pipe 230 is connected to the guide pipe 160 so that the foreign matter beans, which are filtered, are guided to the bucket elevator.

Here, it is preferable that a confirmation window 231 is provided on one side of the tuyukju canal to check the falling direction of the raw beans falling from the feeding hopper and the degree of foreign matter discharge, and to determine an appropriate wind pressure.

This completes the primary selection of the lightest algae from the raw soybeans.

4 and 5, the secondary selecting means 300 includes a net body 310 provided in a cylindrical shape on the upper side of the primary selecting means and a plurality of sorting holes 330, 321 and 322 , 323, and 324 are formed on a per section basis, and the net body is formed to be inclined to a direction in which a bottom outlet is formed (left side in FIG. 1).

The screening net 320 receives the power of the motor M2 installed inside the bottom surface of the loading hopper 102 and rotates.

The sizes of the sorting holes 330, 321, 322, 323, and 324 formed in the sorting network are increased from the bucket elevator side toward the outlet side so that small foreign substances such as broken beans or stones So that large beans can be selected gradually toward the exit side.

Of course, the slope of the screening net is preferable to allow natural flow of soybeans while rotating, and when the slope is gentle, the beans to be sifted to be sifted will occur. If the slope is urgent, It will be difficult to precisely sort because it flows down.

In this case, the long and bulky rods and stones which are long enough to not pass through the sorting screen of the screening network move along the inclination of the screening net and are discharged to the outside through the outlet port.

As a result, the secondary selection line, in which foreign matter having a large volume is filtered from the raw soybeans, is completed.

5 to 9, the tertiary selecting means 400 includes a bracket 410 formed at the front of the base frame 110, a hatch 420 formed at the rear of the base frame 110, A belt conveyor 430 including a belt frame 431 and a belt 432 hingedly connected to a bracket and a hatch and formed to be inclined downward to the bracket side, a bean discharge guide 440 formed in front of the belt frame, And a foreign matter discharge guide 450 formed thereon.

Further, a guide hopper 460 is further provided on the belt frame to prevent the selected beans falling from the discharge guides 143 and 144 from being thrown from the rotating belt conveyor and scattered out of the belt due to the falling speed.

For this purpose, the guide hopper 460 covers the extension pipes 143-1 and 144-1 of the discharge guides 143 and 144 and has a width enough to cover the belt width b, It is preferable to form it as close as possible.

The guide hopper 460 is formed by dividing the bean outlet 441 and the soybean outlet 442 so that the separated soybeans falling through the middle /

In addition, a separation wall 433 is formed in the center of the belt in the belt length direction so that the middle and the soybeans fall through the middle / head discharge guides 143 and 144 and are not mixed with each other on the belt.

At both ends of the belt, a bush 434 is formed in the belt length direction to prevent foreign matter and beans from being inserted between the belt and the belt frame 431.

Here, the separating wall 433 and the bushing 434 must rotate endlessly along the belt, so that a material having ductility is formed by adhering to the belt.

8, the side guide having the flexible belt conveyor of the conventional type is bonded to one side of the belt frame and the other side of the side guide is formed into "? &Quot; As a means for solving the problem of inserting foreign substances and beans between the belt and the belt frame to stop the operation of the conveyor, it is possible to prevent foreign matter from being inserted between the belt and the belt frame 431.

Also, referring to FIG. 9, the belt frame further includes a slope 470 to the bottom of the belt.

This is because the normal soybeans out of the separated soybeans falling through the mid-head / soybean discharge guides 143 and 144 fall on the inclined belt conveyor 430 to fall into the middle head outlet 441 and the soybean outlet 442, Since the broken beans and the stones are not spherical in shape, the belt is conveyed to the foreign matter discharge guide 450 side without being rolled on the inclined belt conveyor 430 and discharged to the foreign matter discharge guide 450, And is discharged together with the foreign matter discharge guide 450 together with the beans or stones that are clogged with broken beans or stones and are no longer rolled and broken.

That is, even if the normal soybeans are transported together with beans or stones that are clogged with broken soybeans or stones, the normal soybeans in the slope 470 having a steep slope higher than the conveying surface of the belt, It is rolling.

For this purpose, the inclining tool 470 includes a roller shaft 471 fixed to the belt frame and a roller 427 formed on the roller shaft outer diameter.

At this time, the width br of the roller 427 may be formed entirely at the outer diameter of the roller shaft 471 as the belt width b. In this case, the belt has the same inclination in the width direction.

Alternatively, the width (br) of the roller 427 may be formed to have a constant width (br) at the central portion. In this case, the belt 432 at the time of entry of the roller, And the belt frame 431, the inclination becomes smaller.

Therefore, it is preferable that the width (br) of the roller 427 is formed to have a constant width (br) at the central portion so as to have various inclination in the belt.

In addition, since the inclination degree is influenced by the diameter d of the roller, it is desirable to design the inclination degree in consideration of the degree of inclination such that the broken beans or the residues do not form.

Here, the belt conveyor 430 is driven by receiving the power of the motor M3 formed on the bottom surface of the base frame.

Referring to FIG. 7, the elevator door 420 includes an upper support 421 hinged to the bottom of the belt frame, a lower support 422 connected to the base frame 110, Shaped jockey 443 including a handle 443-2 connected to the handle 443-1.

Thus, the inclination of the belt conveyor can be adjusted through the hatch in cooperation with the inclined projection 470.

Hereinafter, a process of selecting beans by the bean sorting apparatus to which the technology of the present invention is applied will be described.

The bean sorting apparatus is operated to allow the driving means M1, M2 and M3 to operate the bucket elevator 130, the net body 310 and the belt conveyor 430 and to operate the blowing fan 210 , And the molten raw soybeans are introduced into the feed hopper 120.

Then, the raw beans are freely dropped by their own weights, and light foreign matter mixed in the raw beans is discharged to the outside of the sorting device through the tuyer tube (230) by the sopping fan, and the raw beans are passed through the guide tube (160) (130).

Subsequently, the bucket eliver operated by the driving means rises and feeds the primary beans to the inlet side of the net body 310, which is continuously supplied to the sorting net 320, Since the beans are rotated in a downward inclined state toward the discharge port 150, the supplied beans naturally flow down toward the discharge port 150 and are sorted by size.

That is, since the size of the sorting holes 330 (321, 322, 323, and 324) is gradually increased from the entrance side to the exit side of the first selected raw soybeans input into the screening network, The damaged beans fall down, and then the beans of small size fall down to the bottom of the screen.

At this time, foreign matter such as a deadly bulge which is larger than the screening ball of the screening screen can not pass through the screening hole and is discharged to the outside of the screening apparatus through the outlet of the screening screen.

The picked soybeans dropped from the screening network include a broken bean discharging guide 141 and a small double picking guide 142 installed to be inclined in the forward direction of the base frame 110. [ 143 and 144 are collected and discharged to the outside of the sorting apparatus, and the middle head discharge guide 143 and the soybean discharge guide 144 are freely dropped by the belt conveyor 430.

The beans and soybeans dropped by the belt conveyor still contain cracked soybeans and residual stones. The soybeans containing the foreign matter fall on the belt conveyor while being rolled on the inclined belt conveyor 430, The broken beans and stones are not formed in the shape of a sphere so that they are transported to the foreign matter discharge guide 450 side by the belt without being rolled on the inclined belt conveyor 430, 450).

In this process, the normal soybeans are routed through broken beans or stones through an inclined sphere 470 that raises the slope of the belt beaker more than the inclination of the belt beer, even if the normal soybeans are blocked by broken beans or stones, And is rolled into the soybean outlet 442. Here, even if the inclination of the inclined sphere is abrupt, the broken beans and the residual stones have an irregular shape, so that no continuous cloud is generated toward the outlet.

In addition, it is possible to adjust the inclination of the belt conveyor by adjusting the height of the door by cooperating with the inclined tool 470 so that the broken bean or the curved stone can be conveyed to the one material discharge guide side without rolling to the discharge port side.

As a result, the raw soybeans injected through the hopper are sorted by primary, secondary, tertiary selection and size.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

100: Main body
110: base frame 120: input hopper 130: bucket elevator
140: Discharge guide 150:
200: Primary selection means
210: a blowing fan 220: a tongue 230: a tungsten pipe
300: Secondary selection means
310: network body 320: selection network 330: sex ball
400: The third means
410: Bracket 430: Belt conveyor 440: Bean discharge guide
450: Foreign matter discharge guide 460: Guide hopper 470: Inclined hole

Claims

1. A bean sorting apparatus comprising a main body (100) having a feed hopper (120) for feeding raw beans and a bucket elevator (130) for feeding raw beans,
The main body includes a primary cleaner means 200 formed at the bottom of the feed hopper for removing light foreign substances contained in the raw soybeans from the feed hopper to the bucket elbower,
A secondary sorting means 300 formed on the primary sorting means for sorting the raw beans transferred from the bucket elbow to size and sorting foreign substances having a large size,
Further comprising a tertiary selection means (400) formed at the bottom of the secondary selection means for filtering the foreign substances in the irregular shape contained in the selected beans sorted by the size transferred from the secondary selection means,
The tertiary selecting means (400)
A bracket 410 formed in front of the main body,
A hatch 420 formed at the rear of the main body,
A belt conveyor 430 including a belt frame 431 and a belt 432 hinged to the bracket and the hatch,
A bean discharge guide 440 formed in front of the belt frame,
And a foreign matter discharge guide (450) formed behind the belt frame.

The method according to claim 1,
The main body (100)
A base frame 110 provided in a rough box type having a moving means 101 on a bottom surface thereof,
A hopper 120 formed in the middle of the base frame to feed raw beans,
A bucket elevator 130 for conveying the raw beans conveyed from the input hopper to the secondary sorting means 300,
A discharge guide 140 (141, 142, 143, 144) for discharging the soybeans selected by the secondary selecting means 300 by size,
And a second outlet (150) through which the selected second outlet is discharged from the second selecting means (300).

The method of claim 2,
A guide pipe 160 for guiding the raw beans to the bucket elevator 130 is formed at the bottom of the feed hopper 120. A feed hopper is disposed between the feed hopper and the guide pipe to control the amount of raw soybeans Wherein the feed amount of the raw beans fed to the secondary feeder means (300) through the bucket elevator can be adjusted by further providing the control rod (170).

The method according to claim 2 or 3,
The broken bean discharge guide 141 and the beak discharge guide 142 are inclined in the forward direction of the main body under the secondary sorting means to collect the selected beans,
The bean spout guide (143) and the soybean spout guide (144) are formed in the direction of the third sorting means from below the secondary sorting means.

The method according to claim 1,
The primary selection means (200)
A blowing fan 210 formed at the bottom of the feeding hopper 210,
A tuyere (220) connected to the blowing fan and guiding the wind,
And a tuyet selecting tube (230) connected to the tuyere and guiding a foreign substance falling from the feeding hopper (230).

The method of claim 5,
The tuyere 220 may further include a tuyere regulating valve 221 to select a tandem pressure by controlling a blowing amount of a blowing fan directed to the tuyere selective pipe 230, So that the bean sprouts can be prevented from flowing out to the outside through the tungsten pipe (230).

The method of claim 2,
The secondary cleaning means (300)
A net body 310 provided in a cylindrical shape above the primary selection means,
And a screening network 320 in which screening holes 330 (321, 322, 323, and 324) having different sizes are formed for each section in the network body,
Wherein the net body is formed to be inclined in a direction in which the outlet port is formed.

The method of claim 7,
Wherein the size of the sorting holes (330: 321, 322, 323, 324) formed in the sorting net is increased from the side of the bucket elevator to the side of the outlet side of the bucket elevator.

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The method according to claim 1,
And a guide hopper 460 is further provided on the upper portion of the belt frame to prevent the beans falling down from the secondary cleaning means from being thrown from the belt conveyor by the falling speed and being scattered out of the belt. A bean sorting device.

The method of claim 10,
A separating wall 433 is formed at the center of the belt in the longitudinal direction of the belt so that the sorting beans falling down and sorted by size from the secondary selecting means are not mixed with each other on the belt,
And a bushing (434) is formed at both ends of the belt so as to prevent foreign matter and beans from being inserted between the belt and the belt frame (431) in the belt length direction.

The method according to claim 1,
The belt frame further includes a slope (470) at the bottom of the belt,
Wherein the inclined sphere includes a roller shaft (471) fixed to the belt frame and a roller (427) formed on an outer diameter of the roller shaft.

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