JPH07102343B2 - Vertical grain sorter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION “Industrial field of application” The present invention accommodates, in a vertically long shell, a rotary screen-driven sorting mesh body and a lifting shell spiral body that rotates in the sorting mesh body. The present invention relates to a vertical grain sorter in which grains are fried by a spiral body and small grains are passed through the small holes of a sorting net for sorting.

"Prior art" With a vertical grain sorter, small grains that have passed through the mesh of the sorting mesh are discharged to the outside and stored, and usable components such as waste rice are separately sorted and made available. Things were common.

"Problems to be solved by the invention" However, in such a conventional vertical grain sorter,
The small grains discharged from the vertical grain sorter are mixed with fine powder such as bran and must be sorted separately as described above, so it takes time and labor to use the small grains. There was a problem that it was difficult to use.

The present invention has been made by paying attention to such a conventional problem, and by adding a simple means, fine powder such as bran is separated from the small grain, and easy-to-use small grains such as scrap rice. It is an object of the present invention to provide a vertical grain sorter capable of obtaining only grains.

"Means for Solving the Problem" The gist of the present invention for achieving the above-mentioned object is: 1 a vertically elongated shell body, a rotationally driven selection net, and a fried grain rotating in the selection net. A vertical spiral grain sorter is used to store grains in a standing manner with a spiral body, and the grain is fried by a fried spiral body, and small grains are passed through the small holes of the sorting net for sorting. A fine powder separating unit is provided in connection with an outlet for discharging grains, and the fine powder separating unit divides a flow so that a mixed flow of small grains and fine powder such as bran is separated according to their flight distance. The plate is erected in the channel, and small grains can be jumped over, but a step portion to the extent that fine powder such as bran falls is provided in the inclined flow channel, and a fine powder drop opening is opened between the steps created in the step portion. A vertical grain sorter characterized by being formed by.

2 At the lower part of the shell, a grain guide port is provided which is rotatably erected so as to be coupled to the lower end of the selection mesh body and integrally rotated on the outer periphery of the fried helix, and which introduces grains at the base. However, the outer periphery has a grain guide cylinder equipped with a guide vane that pushes down the grain and guides it to the grain guide port, and an inverted frustoconical base with a taper part facing the grain guide port. And surrounding the grain induction cylinder, the grain receiving cylinder to receive the grain from the supply hopper outside the shell to supply to the grain induction port of the grain induction cylinder, and the tapered portion, A discharge window having a mesh for passing only fine powder such as rice bran is opened, and the discharge flow passage from the discharge window and the discharge flow passage for guiding the differential separated by the fine powder separating unit are joined. The vertical grain sorter according to item 1.

3 The outer periphery of the bottom plate of the grain guiding cylinder is slidably contacted with the bottom surface of the grain receiving cylinder following the taper portion through a packing so as to be slidable during rotation,
A discharge port for discharging fine powder that enters the center side of the packing is provided on the center side of the bottom surface following the tapered portion, and a discharge flow path from the discharge port and a discharge for guiding the fine powder separated by the fine powder separating unit. The vertical grain sorter according to claim 1 or 2, wherein the vertical grain sorter is merged with the flow path.

"Action" Small grains and fine powder such as bran are separated as follows.

The unsorted grain is supplied into the sorting net and is sent upward by the fried helix to perform the fried grain and the sorting. Small grains pass through the small holes of the screening net and are sorted, and only good grains are taken out from the upper end of the sorting net.

The fine powders such as the selected small grains and bran are discharged from the discharge port and reach the fine powder separating unit.

In the fine powder separating section, since the flying distances of the small grains and the fine powder such as bran are different, the separation plate separates the flow containing a large amount of the fine grains and the small grains due to the difference. Further, small grains and fine powder flow in the inclined channel, and when passing the step, the small grain jumps over this step and remains on the channel, but fine powder such as bran cannot jump over the step, Fine powder falls from the outlet.

The grain flow separated from the fine powder such as the bran is collected at the end of the flow path, and the fine powder such as the bran is also separately collected and appropriately used or discarded.

The state of fried selection of grains is as follows.

The unsorted grain is fed to the feed hopper and the vertical grain sorter is started.

In the grain receiving cylinder provided at the base of the fried helix, the unsorted grain fed from the supply hopper rotates in the same direction as the sorting net. The grains are pushed downward by the blades, and the grains are fed from the multiple grain guiding ports provided on the lower peripheral surface of the grain guiding cylinder to the starting end of the fried helix that rotates in the direction opposite to the sorting net. It

Grains scraped up by the fried helix are subjected to the sorting action by the sorting net while being splashed outward, and the small grains pass through the small holes of the sorting net and are removed from the sorting net. The good grains that do not pass through the sorting net are raised as they are and sent to the outside.

In the case where a discharge window with a net for passing only fine powder such as bran is provided in the taper portion, the fine powder is discharged from the discharge window to the discharge flow passage, and the discharge for guiding the fine powder separated by the fine powder separating unit It joins the channel and is collected.

Even if the discharge port for discharging the fine powder entering the center side from the packing is opened on the center side of the bottom surface following the tapered portion, the fine powder is discharged from the discharge port to the discharge flow path and separated by the fine powder separating unit. The fine powder is collected by being joined with the discharge flow path.

[Examples] Hereinafter, various examples of the present invention will be described with reference to the drawings.

1 to 4 show a first embodiment of the present invention.

As shown in FIGS. 3 and 4, the vertical grain sorter 10
Is a vertically erected outer shell body 11, and a fried grain spiral body 14 formed by winding a spiral blade 13 around the outer circumference of a cylindrical body 12, and concentric with the fried grain spiral body 14 and surrounding the outside thereof, A sorting net body 16 having a large number of small holes 15 is stored.

The fried grain spiral body 14 and the sorting net body 16 are rotationally driven in opposite directions by a motor 18 with a speed reducer provided below a base plate 17 that divides the outer shell body 11 into upper and lower parts.

A supply hopper 19 for supplying unsorted grains such as rice is provided outside the outer shell 11, and a storage tank (not shown) for temporarily storing refined grains is provided at the head.

On the upper surface of the base plate 17, a grain receiving cylinder 20 having a cylindrical shape and a bottom portion having a tapered portion 21 having a truncated cone shape is provided upright.
The upper open end forms a horizontally open peripheral edge portion 22 and a cylindrical peripheral edge standing surface 22a. The supply hopper 19 has an opening 19a near the center of the grain receiving cylinder 20.

On the other hand, in the lower part of the sorting net body 16, the grain guiding cylinder 30 having almost the same diameter is provided.
Is provided so as to be attachable to and detachable from the lower end of the sorting net body 16.

The upper end portion 31 of the grain guiding cylinder body 30 can be closely fitted into the end ring member 16a that constitutes the lower end portion of the selection net body 16, and is attached to the end ring member 16a of the selection net body 16. Is the grain induction cylinder 30
Engaging notch 16b for driving is engraved.

Then, a partition disk is horizontally provided on the outer circumference of one grain guiding cylinder 30.
32 is fixed, and a plurality of locking members 33 that lock with the engagement notches 16b are provided. The locking member 33 also serves as a blade for scraping out small grains such as sorted scrap rice.

The partition disc 32 has a circular outer circumference, is in sliding contact with the packing 23 on the horizontally formed peripheral edge 22 of the grain receiving cylinder 20, and the outer periphery is full of the inner periphery of the peripheral edge standing surface 22a of the grain receiving cylinder 20. Made of size.

Further, as described above, the locking member 33 locks with the engaging notch 16b of the selection net body 16 to rotate the selection net body 16 to rotate the grain guide cylinder 30.
And the small grains such as scrap rice that have passed through the small holes 15 of the sorting net 16 and are discharged to the outside from the small grain discharge port 11a. A fine powder separating unit 40 described later is provided connected to the small grain discharge port 11a.

At the lower end of the grain guiding cylinder 30, a plurality of grain guiding ports 34, 3
4 ... has been drilled. Upper edge line 3 of these grain induction ports 34
4a is provided considerably below the lower edge of the opening 19a in the granulating cylinder 20 of the supply hopper 19.

Further, a plurality of grain guide blades 35 having a starting end close to the upper edge line 34a of each grain guide port 34 and directed downward during rotation are provided. The grain guide cylinder 30 has a bottom plate 37 that closes the bottom of the grain guide cylinder 30 slidably mounted on the bottom portion 20a of the granule cylinder 20 via a packing 36 during rotation.

As shown in FIG. 1, the inner wall of the taper portion 21 of the grain receiving cylinder 20 is in contact with the grain guiding cylinder 30 at a position not lower than at least the upper surface of the bottom plate 37 of the grain guiding cylinder 30. The packing 36 is mounted so that the outer periphery thereof is guided by the circumference of the cylindrical portion 21a following the tapered portion 21.

The center of the bottom plate 37 of the grain guiding cylinder 30 is rotatably loosely fitted to the boss 18a of the motor 18 with a speed reducer, and is pivotally supported. Are superposed through. The bottom plate 14a is fixed to and pivotally supported by the output shaft 18b of the motor 18 with a reducer.

The gap S has a space in the central portion and has a fried helix 14 at the outer periphery.
And a narrow slit S1 that opens between the grain guiding cylinder 30 and the grain guiding cylinder 30.

Inside the gap S, a fine powder discharge fan 38 pivotally attached to the boss 18a of the speed reducer motor 18 and rotating integrally with the fried helix 14
Is provided.

The fine powder discharging fan 38 includes fins 38b, 38b ... On the outer periphery of the base plate 38a that abuts the lower surface of the bottom plate 14a. This fin may be directly fixed to the bottom plate 14a.

The fine powder separating section 40 provided in connection with the small grain discharge port 11a will be described with reference to FIGS. 1 and 2.

A receiving trough 41 is arranged so as to receive a mixed flow of the small grain A discharged from the small grain discharge port 11a and a fine powder a such as bran, and the small grain A is provided on the inclined flow path surface 42 of the receiving trough 41. A separating plate 45 for dividing the flow so as to separate the fine powder a and the fine powder a according to the difference in the flight distance is erected in the direction along the flow.

A step 43 is provided on the flow path surface 42 slightly downstream of the flow path.
And the flow path surface 42a continues.

The step of the stepped portion 43 is set so that the small grain A can be jumped over but the fine powder a such as bran drops, and a fine powder drop opening 44 is provided between the flow path surface 42 and the flow path surface 42a. Has been done.

The separation efficiency of the fine powder a from the small grain A is determined by the position and the step of the step portion 43 and the width of the drop port 44, and by making them appropriate, the fine powder separating portion 40 with high efficiency can be configured.

Next, the operation will be described.

Vertical grain sorter 10 that feeds unsorted grains to the feed hopper 19
When starting, the grain guide cylinder 30 slowly rotates together with the selection net body 16, and the grain guide blades 35 push the grain fed from the opening 19a in the grain receiver 20 of the supply hopper 19 downward. To send. The grain is pushed into the grain guiding cylinder 30 from the grain guiding port 34 along the tapered portion 21 of the grain receiving cylinder 20.

Inside the grain guiding cylinder 30, the fried helix 14 rotates in the opposite direction at high speed to scrape the grain, and the small holes in the sorting net 16
Sorted by 15. That is, the small grains A that have passed through the small holes 15 fall in the space between the outer periphery of the selection net body 16 and the inner wall of the outer shell body 11.

The small grains A that have fallen try to be deposited on the surface of the partition disc 32 provided on the outer periphery of the grain guiding cylinder 30, but since the partition disc 32 is rotating together with the sorting net body 16. , Small grain A
Is ejected outside and discharged from the small grain discharge port 11a to the outside.

The small grains A and the fine powder a such as bran that have been sorted and discharged are discharged from the small grain discharge port 11a and reach the fine powder separating unit 40.

As shown in FIG. 2, the mixed flow of the small grains A and the fine powder a such as bran is ejected in the direction of the arrow by the locking member 33 which also serves as a scraping blade. Even if the small grain A and the fine powder a such as bran are kicked out at the same speed, the heavy small grain A flies far, and the fine powder a has a different flight distance. The separating plate 45 divides the flow path, one of which has a flow of almost only the small grains A and the other has a flow of a large amount of fine powder a.

The latter flow, in which a large amount of fine powder a is mixed with the small grains A, moves on the further inclined channel surface 42, and when passing the step 43, the small grains A jump over the step 43 to the channel surface 42a. Although it reaches and remains on the flow path, the fine powder a such as bran cannot jump over the step portion 43 and falls from the fine powder dropping port 44.

The flow of almost only the small grains A and the flow of the small grains A that have passed the stepped portion 43 are merged and collected at the flow path surface 42a.

On the other hand, good grains that do not pass through the small holes 15 of the sorting net body 16 are fried upward and accumulated in a storage tank (not shown) while repeating a part of falling.

The opening 19a of the supply hopper 19 is not directly opened to the spiral blade 13 of the fried helix 14, and since the grain guide port 34 is provided considerably below the opening 19a, the fried helix 14 is With no rebound, the effect of the inclination of the taper portion 21 of the grain receiving cylinder 20 and smooth grain feeding are achieved, and a sufficient feeding amount is obtained.

Even when the sorting work is almost completed and the amount of grains supplied from the supply hopper 19 is decreasing, the opening 19a in the grain receiving cylinder 20 of the supply hopper 19 is opened at a position higher than the grain guide port 34. Since it does not directly open to the fried helix 14, it is not repelled by the fried helix 14 and is fed into the grain receiving cylinder 20 to the end.

During the sorting operation, the unselected grains supplied from the supply hopper 19 are supplied to the supply hopper 19 by the grain guide blades 35 of the grain guide cylinder 30.
While being pushed into the inside of the grain guiding cylinder 30 from the opening 19a to the grain guiding port 34 along the tapered portion 21 of the grain receiving cylinder 20, the fine powder a such as bran is transferred to the grain guiding cylinder 30. The slit S1 tries to enter the gap S between the bottom plate 37 and the bottom plate 14a of the fried helix 14.

In the space S, the fine powder discharging fan 38 is rotating together with the screening net 16, so that the fine powder a that is about to enter is the fan 38.
The b is repelled by the outer periphery to prevent the intrusion, and even if it invades, it is pushed out and the fine powder a does not accumulate inside the gap S.

FIG. 5 shows the second embodiment.

Since this embodiment has the same configuration as the first embodiment,
The common parts are given the same reference numerals and the description thereof is omitted, and only the characteristic parts will be described.

A discharge window 24 is provided in the taper portion 21 of the grain receiving cylinder 20 so that only a fine powder a such as bran can pass through. In addition, the bottom plate 37 of the grain guiding cylinder 30 and the bottom portion 20a of the grain receiving cylinder 20 on the center side of the packing 36.
A discharge port 25, which communicates with the gap between and and discharges the fine powder a that enters the gap, is provided on the center side of the bottom surface following the taper portion 21.

The upper end of the guide plate 46 is connected to the lower surface of the receiving trough 41 of the fine powder separating unit 40, the guide plate 46 is extended downward to form a discharge flow path from the fine powder drop port 44, and the lower surface of the base plate 17 at the center side. On guide board 47
Is connected to the upper end of the guide plate 46 so as to be adjacent to the lower end of the guide plate 46, whereby the discharge flow path from the fine powder drop opening 44 and the discharge flow path from the discharge window 24 and the discharge opening 25 join together. A common recovery port 48 is provided.

A recovery container 49 is placed under the recovery port 48.

The fine powder a discharged from each of the fine powder drop port 44, the discharge window 24, and the discharge port 25 can be floated and collected in one collection container 49 and discarded or used, which is convenient. It is not necessary to provide a recovery container at each place, and the structure is simple.

"Effects of the Invention" According to the vertical grain sorter of the present invention, fine grains such as bran can be removed from the small country flow such as scrap rice sorted from good grains to obtain high quality small grains. Therefore, it can be immediately used for other purposes and is highly efficient. In addition, if the fine powder from each place is collected at one place, the fine powder can be collected together and discarded or used, which is convenient and does not require a collection container at each place, and the configuration is simple. .

[Brief description of drawings]

1 to 4 show a first embodiment of the present invention, and FIG. 1 shows an assembled state of a grain receiving cylinder and a sorting net of a vertical grain sorter, a fried helix and a fine powder separating section. Sectional view, FIG. 2 is a perspective view of a main part of the fine powder separating section, FIG. 3 is a sectional view of the lower portion of the vertical grain sorter cut by a vertical plane, and FIG. 4 is a base of the sorting net and a grain guiding cylinder. FIG. 5 is a perspective view of the body, and FIG. 5 is a sectional view of a main part of a lower portion of the vertical grain sorter according to the second embodiment. 10 …… Vertical grain sorter, 11 …… Outer shell 14 …… Lifted grain spiral, 14a …… Bottom plate 16 …… Sorting net, 19 …… Supply hopper 19a …… Opening, 20 …… Grain barrel 20a …… bottom of grain receiving cylinder, 21 …… tapered portion 24 …… exhaust window, 25 …… exhaust port 30 …… grain induction cylinder, 32 …… partition disc 33 …… locking member, 34 …… Grain guide port 35 …… Grain guide vane, 36 …… Packing 37 …… Bottom plate, 38 …… Fine powder discharge fan 40 …… Fine powder separating unit, 41 …… Reception trough 42, 42a …… Flow path surface, 43 …… Step 44: Fine powder drop port, 45: Separation plate

Front page continuation (72) Inventor Hisao Wakui 4290 Fujioka, Fujioka-machi, Shimotsuga-gun, Tochigi Prefecture Tiger Kawashima Co., Ltd. (56) References: 63-189375 (JP, U) , U) Jikkouhei 3-35423 (JP, Y2)

Claims (3)

[Claims] 1. A vertically elongated shell body is provided with a sorting net body that is driven to rotate and a fried grain spiral body that rotates in the sorting net body, and the grain is fried by the fried helix body. In a vertical grain sorter configured to pass small grains through small holes in a sorting net, a grain separating unit is provided in connection with an outlet for discharging the sorted grain, and the fine grain separating unit is provided. Is equipped with a separation plate in the flow passage to separate the mixed flow of small grains and fine powder such as bran according to the difference in their flight distance. The vertical grain sorter is characterized in that a step portion to the extent that the fine powder falls is provided in an inclined flow path, and a fine powder drop opening is formed between steps formed in the step portion. 2. A grain which is rotatably erected at a lower part of the shell body so as to be coupled to a lower end of the sorting mesh body so as to rotate integrally with an outer periphery of the fried helix, and which introduces the grain into a base portion. A grain guide cylinder equipped with a guide vane and a guide vane wound around the outer periphery to guide the grain to the grain guide port, and the grain guide port is faced to the base of an inverted truncated cone. Surrounding the grain induction cylinder having a tapered portion, a grain receiving cylinder that receives the grain from the supply hopper outside the shell and supplies the grain guiding port of the grain guiding cylinder, and A discharge window with a net for passing only fine powder such as bran is opened in the taper portion, and the discharge flow channel from the discharge window and the discharge flow channel for guiding the differential separated by the fine powder separating section are merged. The vertical grain sorter according to claim 1, wherein the grain sorter is a vertical grain sorter. 3. The outer periphery of the bottom plate of the grain guiding cylinder is slidably slid on the bottom surface following the taper portion of the grain receiving cylinder through a packing so as to be slidable at the time of rotation, and the fine powder which enters the center side from the packing is discharged. Open a discharge port on the center side of the bottom surface following the taper part,
The vertical grain sorter according to claim 1 or 2, wherein a discharge flow path from the discharge port and a discharge flow path for guiding the fine powder separated by the fine powder separating section are joined.