JPH02154618A - Vertical type grain grading machine - Google Patents

Abstract

PURPOSE:To enable collection of small or crushed rice grains of good quality which are separated from good whole grains and from fine particles such as bran by providing a fine particle separator following the outlet of the classified crushed rice grains. CONSTITUTION:Unselected rice grains are fed into selection screen 16, sent up with the screw 14 whereby the grains are lifted and selection is conducted. Small or crushed rice grains are selected by passing through the small holes of the screen 16 and only the whole grains of good quality are taken out of the top. The small grains and bran are pushed out of the outlet to reach the fine powder separator 40 where the mixture of trains and fine particles are separated according to the flying distances using a separation plate 45 into 2 flows of powder and grains. Further, the small grains and fine particles flow down the iclined path, and the grains are collected at the flow end and the powder particles are also recovered separately.

Description

Detailed Description of the Invention "Field of Industrial Application" The present invention houses a sorting net that is driven five times in a vertically elongated shell, and a grain frying spiral that rotates within the sorting and net. Grain is fried using a grain spiral, small grains are sorted, 1l11
This invention relates to a vertical grain sorting machine that sorts grain by passing through small holes in its body.

"Conventional technology" In a vertical grain sorter, small grains that have passed through the mesh of the sorting net are discharged to the outside and stored, and usable components such as waste rice are separately sorted and separated for use. It was something common.

[Invention or problem to be solved] However, with such conventional vertical grain sorting machines,
The small grains discharged from the vertical grain sorter are mixed with fine powder such as bran, and must be separated separately as mentioned above, so it takes several tons to utilize the small grains. The problem was that it was complicated and difficult to use.

The present invention has been made in view of these conventional problems [1]. By adding a simple means, the present invention separates fine powder such as bran from small grains and makes it possible to collect waste rice etc. that cannot be used. An object of the present invention is to provide a vertical edge grain sorter capable of obtaining only small grains.

"L stage for solving the problems" What is the gist of the present invention to achieve these 11 objectives?

■ A sorting net that is driven once in a vertically elongated shell and a grain frying spiral that rotates within the sorting net are installed and housed, and the grains are fried by the grain lifting spiral and small grains are In a vertical grain sorting machine in which grains are sorted by passing through small holes in a sorting net.

A fine powder separation section is installed connected to the discharge port that discharges the selected small grains.

+fii The fine powder separation section has a separation plate erected in the flow path that divides the flow so as to separate the mixed flow of small grains and fine powder such as bran based on the difference in flying distance between them, and also allows small grains to jump over the flow. A vertical grain sorting machine characterized by having a stepped section in an inclined flow path that is large enough to allow fine powder such as bran to fall, and a fine powder falling port is provided between the steps formed in the stepped section.

2. A grain guiding port is provided at the lower part of the shell body, and is rotatably erected so as to be coupled to the lower end of the sorting net and rotate together with the outer periphery of the lifting spiral body, and has a grain guiding port for introducing grain into the base. and a grain guiding cylindrical body having a guiding blade wound around the outer periphery for pushing down the grains and guiding them to the grain guiding port.

The inverted A1-headed conical base has a tapered part facing the grain guiding port, surrounds the grain guiding cylinder, receives grains from a supply reservoir outside the shell, and directs the grains into the grain guiding cylinder. A grain receiving cylinder is provided to supply the grain to the grain guiding port.

A discharge window with a net through which only fine powder such as bran passes is provided in the taber part, and a discharge flow path from the discharge window and the fine powder S
2. The vertical grain sorting machine according to claim 1, wherein the vertical grain sorting machine has a discharge flow path for guiding the fine powder separated in the part.

3. The outer periphery of the bottom plate of the grain guiding cylinder is brought into sliding contact with the bottom surface following the tapered part of the grain receiving cylinder via a packing so that it can be slid upwardly during rotation,
A discharge port for discharging fine powder that enters into the center side from the bulkhead is provided on the center side of the bottom surface following the taber part, and a discharge flow path from the discharge port and a discharge for guiding the fine powder separated by the fine powder separating section. 1 and 2 characterized by merging with the flow path
The vertical grain sorting machine described in Section 1.

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

The unsorted grains are fed into the sorting net and sent upwards through the grain lifting spiral, where they are fried and sorted. Small grains are sorted by passing through the small holes of the sorting net, and only good grains are taken out from the upper end of the sorting net.

The sorted fine powder such as small grains and bran is discharged from the discharge port and reaches the fine powder separation section.

In the fine powder separation section, small grains and fine powder such as bran have different flight distances, so a separation plate is used to separate them.

A stream containing many fine powders and small grains is separated.

Furthermore, small grains and fine powder flow through the sloping channel, and when they pass a step, the small grains either jump over the step and remain in the flow path, or fine powder such as bran does not jump over the step. , fine powder falls from the opening.

The small grains separated from the fine powder such as vJA are collected at the end of the channel, and the fine powder such as bran is also separately collected and used as appropriate or discarded.

The process of frying and sorting grains is as follows.

Feed unsorted grain into the feed hopper and start the vertical grain sorter.

Yang? In the grain receiving cylinder provided at the base of the helix, there are either unsorted grains fed from the supply hopper, grains from a grain guide cylinder of approximately the same diameter that rotates in the same direction as the sorting net, or transparent grains. The grains are pushed in the F direction by the guide vanes, and are sent from a plurality of grain guide ports provided on the lower peripheral surface of the grain guide cylinder to the starting end of a 4g grain spiral rotating in the opposite direction to the sorting net. be provided.

The grains raked up by the grain lifting spiral are not splashed outward, but are subjected to the sorting action by the sorting net, and the small grains pass through the small holes of the sorting net and are sorted. Good grains that are rejected and do not pass through the sorting net are directly transferred to L-,
yl and sent to the outside.

In the case where the taber part is provided with a discharge window with a mesh that allows only fine powder such as bran to pass through, the fine powder is discharged from the discharge window into the discharge flow path, and the fine powder separated by the fine powder separation part is guided through the discharge window. It joins the flow path and is collected.

Even if a discharge port for discharging fine powder that enters the center side from the packing is opened on the center side of the bottom surface following the taper part, the fine powder is discharged from the discharge port into the discharge flow path, and the oil-temperature fine powder molecules ! It joins the discharge flow path that guides the fine powder separated in section Ii and is collected.

"Examples" Various embodiments of the present invention will be described below with reference to l<.

11A to 4 show a first embodiment of the present invention.

As shown in FIGS. 3 and 4, a vertical grain sorter 10
is a grain-floating spiral body 14 formed by winding a spiral blade 13 around the outer periphery of a cylindrical body 12 in a vertically installed outer shell body 11; A sorting net 16 having a large number of small holes 15 is housed therein.

The grain lifting spiral body 14 and the sorting net body 16 are driven in opposite directions by a motor 18 with a speed reducer provided at the lower part of a base plate 17 that partitions the inside of 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 shell 11, and a storage tank (not shown) for temporarily storing refined grains is provided at the head.

On the L surface of the base plate 17, a grain receiving cylinder 20 is erected, which has a cylindrical shape and a tapered part 21 having a truncated conical bottom. 22, and a cylindrical peripheral edge elevation 22a. The supply hopper 19 has an opening ff1l near the center of this grain receiving cylinder 20.
It has l 9 a.

On the other hand, at the lower part of the sorting net 16, a grain guide cylinder 30 having approximately the same diameter is provided so as to be detachable from the lower end of the sorting net 16.

The upper end 31 of this grain guiding cylinder 3o is inserted into the end ring member 16a constituting the lower end of the first sorting net 16 in a close manner.
tm, and the end ring member 16a of the sorting net 16 has an engagement notch 16b for driving the grain guiding cylinder 3o.
It is engraved.

A partition circle &32 is fixed horizontally on the outer periphery of the force grain guiding cylinder 3o, and a plurality of locking members 33 that lock into the engagement notches 16b are arranged. Related IF member 33
The blades also serve as blades for scraping out small grains such as selected waste rice.

The partition disk 32 has a circular outer periphery, and is attached to the bucket 23 on the periphery 22 above the water of the grain receiving cylinder 2o. J is in contact with each other, and the outer periphery has a size that is equal to the inner periphery of the peripheral edge elevation 22a of the grain receiving cylinder 2o.

Further, as described above, the locking member 33 locks with the engagement notch 16b of the sorting net 16, transmits the rotation of the sorting net 16 to the grain guiding cylinder 30, and also transmits the rotation of the sorting net 16 to the grain guiding cylinder 30. Hole 15
Small grains such as scrap rice that have passed through and fallen are discharged to the outside from the small grain discharge port 11a. Small grain outlet 1
A fine powder separation section 40, which will be described later, is connected to 1a.

A plurality of grain 1 through holes 34, 34, . . . are bored in the lower end of the grain guiding cylinder 30. The upper edge line 34a of these grain guides 1''34
the upper edge of the opening 19a).

Further, each grain has a starting end close to the upper edge line 34a of the 'A guide' 134, and a plurality of stages and guiding blades 35 are sunk toward the direction when rotating. The grain 1″A conductor body 30 connects the bottom plate 37 that closes the bottom of the grain receiving tube 20 to the bottom of the grain receiving tube 20. ! &20a via a brushkin 36 so as to be able to slide freely during rotation.

As shown in the first vU, the inner wall of the tapered portion 21 of the grain receiving cylinder 20 is in contact with the grain guiding cylinder 30 at a position that is not lower than at least the top surface of the bottom plate 37 of the grain guiding cylinder 30. The packing 36 is installed so as to be guided by the outer periphery thereof or the inner periphery of the cylindrical portion 21a following the tapered portion 21.

The center of the bottom plate 37 of the grain guide cylinder 30 is the motor 1 with a reduction gear.
The lower plate 3 is rotatably loosely fitted and pivotally supported on the boss 18a of
The bottom plate 14a that closes the bottom of the grain frying spiral body 14 is superimposed on the bottom plate 14a of No. 7 with a gap S therebetween.

The bottom plate 14a is solidly and pivotally supported by an output shaft 18b of a motor 18 with a speed reducer.

The gap S has a space at the center and a grain-fried helix 1 at the outer periphery.
4 and the grain guide cylinder 30 are communicated with each other through a narrow slit SL.

A fine powder discharge fan 38 is provided in the gap S, which is pivotally connected to the boss 18a of the motor 18 with a speed reducer and rotates integrally with the fried grain I'I revolving body 14.

The fine powder discharge fan 38 has fins 38b on the outer periphery of a base plate 38a that is in contact with the lower surface of the bottom plate 14a.

38b... This fin may be directly fixed to the bottom plate 14a.

The fine powder separating section 40 provided in connection with the small grain outlet 11a through the 1st IA and the 212th part will be explained.

Small grains A and tIII discharged from the small grain outlet 11a
The receiving gutter 41 is designed to receive a mixed flow of fine powder such as
A separating plate 45 is installed on the inclined flow path surface 42 of the receiving gutter 41 to separate the small grains A and the fine powder A according to the difference in flying distance. has been done.

A step portion 43 is provided on the flow path surface 42 a little downstream of the flow path, and the step portion 43 is pushed in one step and continues to the flow path surface 42a.

The level difference in the step part 43 is set to such an extent that small grains A can jump over it, but fine powder a such as bran can fall, and there is a fine powder falling port F 44 between the level difference between the flow path surface 42 and the flow path surface 42a. It has been established.

The rate of separation of the fine powder a from the small grains A is determined by the position and level difference of the stepped portion 43, and II3 of the falling port 44, and by optimizing these factors, an efficient fine powder separating section 40 can be constructed. can.

Next, the action will be explained.

Feed the unsorted grains to the feeder 19 and make it 5 vertically! When the grain sorting machine IO is started, the grain guide cylinder 30 is moved to the sorting net body 16.
At the same time, the grain guide vanes 35 slowly rotate to push the grains fed from the opening 19a in the grain receiving tt420 of the supply hopper 19 downward. The grains flow along the tapered portion 21 of the grain receiver 020 from the grain guiding port 34 to the grain guiding cylinder 3.
0 is pushed inside.

Inside the grain guiding cylinder 30, a grain lifting spiral 14 rotates at high speed in the opposite direction to scrape up grains.
The small holes 15 are used for sorting. That is, the small hole 15
The small grains A that have passed through are sorted, and are separated from the outer periphery of the mesh body 16 and the outer shell body 1.
Drop down the space on the inner wall of 1.

The fallen small grains A try to be planted on the surface of the partition disk 32 provided on the outer periphery of the grain guide cylinder 30. The partition disk 32 is rotating together with the sorting net 16. from,
The small grains A are splashed outward and are discharged to the outside from the small grain discharge port 11a.

The sorted and discharged small grains A and fine powder a such as bran are discharged from the small grain discharge port 11a and reach the fine powder separation section 40.

A mixed flow of small grains A and fine powder a such as bran is forced out in the direction of the arrow by a locking member 33 which also serves as a scraping blade, as shown in FIG. Even if small grains A and fine powders such as bran A are thrown out at high rotation speeds, small grains A with a large amount of grains will fly far away, while fine powders A will not fly as much and the distances will be different. , the dividing board 45 installed near the boundary divides the wave path,
One is a flow of mostly small grains A, and the other is a flow of mostly fine grains A.

The latter flow, which is a mixture of fine powder A and many small grains A, further moves along the #I erased channel surface 42 and when it passes the first stage section 43, the small grains A jump over this step section 43 and reach the channel surface. 42a and remain on the flow path, or the fine powder a such as bran cannot jump over the step 43 and falls from the fine powder fall L+44.

In the above, the flow of small grains A and the flow of small grains A that have passed over the step portion 43 merge at the flow path surface 42a and are collected.

On the other hand, the good grains that do not pass through the small holes 15 of the 1111 grains 16 during sorting are lifted upward and killed, although some of them repeatedly fall, and are accumulated in a storage tank (not shown).

The opening part 19a of the supply pump 19 does not directly open to the spiral blade 13 of the helical body 14, and the grain guidance [
134 is provided at a far lower blade than the opening 19a, there is no rebound from the grain lifting spiral body 14, and smooth grain feeding is achieved in addition to the effect of the tilting of the tapered part 21 of the grain receiving tube 20. Then, the exact feeding formula can be obtained.

Even if the sorting operation is nearing the end and the amount of grain supplied from the supply hopper 19 decreases, the grain receiving tube 2 of the supply hopper 19
Since the opening 19a at 0 is opened higher than the grain guidance [134] and does not open directly into the grain lifting spiral 14, the grain is not bounced back by the grain lifting spiral 14, and the grain can be held at the end. Delivered within 20 days.

During the sorting operation, unsorted grains supplied from the supply hopper 19 are moved from the opening 11 19a of the supply hopper 19 to the tapered part 2 of the grain receiving cylinder 20 by the grain guiding blades 35 of the grain guiding cylinder 30.
1 along the grain induction port 34 and further? ! grain induction t,
1. While being pushed into the inside of the body 30, 2. The bottom plate 37 of the grain guiding cylinder 30 and the bottom plate 14 of the fried shell spiral body 14.
attempts to enter the gap S between the slit SL and the slit SL.

In the gap S, the fine powder discharge fan 38 rotates together with the sorting net 16, so the fine powder a that attempts to enter is repelled by the outer periphery by the fins 38b and is prevented from entering, and even if it does enter, it is pushed outside. Fine powder a does not accumulate inside the gap S.

No. 51a shows the second embodiment.

Since this embodiment has the same configuration as the first embodiment,
Common parts will be marked with exclamations, Theory II will be omitted, and only distinctive parts will be explained.

A discharge window 24 is provided in the tapered portion 21 of the grain receiving cylinder 20 and is made of a mesh that allows only fine powder a such as bran to pass through.

Further, a discharge port 25 that communicates with the gap between the bottom plate 37 of the grain guiding cylinder 30 and the bottom part 20a of the grain receiving cylinder 20 on the central side of the packing 36 and discharges the fine powder a that enters the gap is tapered. It is opened on the center side of the bottom surface following part 21.

The receptacle of the fine powder separation section 40 connects the upper end of the guide plate 46 to the lower surface of the inlet gutter 41, extends the guide plate 46 downward to form a discharge flow path from the fine powder falling port 44, and The upper end of the guide plate 47 is connected to the lower surface of the side, and this is also extended downward to be close to the lower end of the guide plate 46, so that the u:I: flow path and discharge window 24. Outlet 2
A common recovery port 48 is provided by merging with the discharge flow path from 5.

A collection container 49 is placed below the collection port 48.

Fine powder falling port 44. Ejection window 24. The fine powder a discharged from various parts of the discharge port 25 can be collected in collection containers 49 at - locations and disposed of or used, which is easy to use and does not require collection containers at various locations. The configuration is also easier.

"Effects of the Invention" According to the vertical grain sorter according to the present invention, fine grains such as bran can be removed from small grains such as waste rice separated from good husks to obtain small grains of good quality. Therefore, it is efficient because it can be used for other purposes immediately, and it is easy to use because it collects fine powder at various places and can be disposed of or used. There is no need to provide collection containers at various locations, and the configuration is simplified.

[Brief explanation of the drawing]

11J to 41A show the first embodiment of the present invention.
A sectional view showing the state of assembly of the crocodile body and the grain-frying spiral body and the fine powder separation section, and Fig. 2 is a perspective view of the opening of the fine powder separation section [A,
Fig. 3 is a sectional view of the F section of the vertical grain sorter taken along a 1-torque plane, Fig. 4 is a perspective view of the base of the sorting net and the grain guiding cylinder, and Fig. 5 is a second embodiment. This is a cross section of the main part of the lower part of the vertical grain sorter [':A]. 10... Vertical grain sorting a ll... Shell body 14.
... Grain frying spiral body 14a... Bottom plate 16... Sorting net body 19... Supply hopper 19a... Open 11 part 20... Grain receiving tube 20a... Bottom part of grain receiving tube 21... Taber part 24...discharge window
25...Discharge 1130...Grain R, I conductor
32...Partition disk 33...Member 35...Grain 1 through 4 blades 37...μ (Plate 40...Fine powder separation section 42.42a...Flow path surface 44...・Fine powder drop 11 34...-Grain 1'j1 inlet 36...Paraquin 38...Fine powder discharge fan 41...Receptacle is placed in gutter 43...Step 45...Separator plate λ ( f th (, L, i J4σ糎社fat 4Q Meyo, regret・line ``3rd figure sai'' mouth

Claims (1)

[Scope of Claims] 1 A rotatably driven sorting net and a grain frying spiral body rotating within the sorting net are erected and housed in a vertically elongated shell, and the grains are fried by the grain frying spiral. In a vertical grain sorting machine in which small grains are sorted by passing through small holes in a sorting net, a fine powder separating section is provided connected to an outlet for discharging the sorted small grains, and the fine powder is separated from the fine powder. In the separating section, a separating plate is installed in the channel to separate the mixed flow of small grains and fine powder such as bran based on the difference in flying distance, and the small grains can jump over the flow. A vertical grain sorting machine characterized by having a stepped portion in an inclined flow path that allows fine powder such as bran to fall, and a fine powder falling port is provided between the steps formed in the stepped portion. 2. A grain guiding port is provided in the lower part of the shell body, and is rotatably installed to be connected to the lower end of the sorting net so as to rotate together with the outer periphery of the grain frying spiral, and has a grain guiding port for introducing grain into the base. The grain guide cylinder has a grain guiding cylinder wound around the outer periphery with guiding blades that push down the grains and guide them to the grain guiding port, and a tapered part facing the grain guiding port at the base of the inverted truncated cone. a grain receiving tube that surrounds the grain guiding cylinder, receives grains from a supply hopper outside the shell, and supplies the grains to the grain guiding port of the grain guiding cylinder; , a discharge window with a mesh that allows only fine powder such as bran to pass through is opened, and the discharge flow path from the discharge window is merged with the discharge flow path that guides the fine powder separated by the fine powder separation section. Claim 1
Vertical grain sorter as described. 3. The outer periphery of the bottom plate of the grain guiding cylinder is brought into sliding contact with the bottom surface following the tapered part of the grain receiving cylinder through a packing so that it can slide during rotation,
A discharge port for discharging fine powder that enters the center side from the packing is provided on the center side of the bottom surface following the tapered part, and a discharge flow path from the discharge port and a discharge for guiding the fine powder separated by the fine powder separating section. 3. The vertical grain sorting machine according to claim 1, wherein the vertical grain sorting machine has a flow path that merges with the flow path.