JPS6328671B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rice hulling sorting device.

In other words, it is possible to reliably sort brown rice from the mixed rice that has been removed by the huller.
The two cylindrical rotary sorting cylinders improve sorting efficiency and allow for accurate sorting, and the overall structure can be made compact and can be carried out suitably.

Next, the embodiment shown in the drawings will be described.

Fig. ¹ shows a side view of the rice hulling sorting device.
In the wind sorting section ^d1 , a No. ² conveyor 3, a mixed rice conveyor 4, a paddy conveyor 5, a brown rice conveyor 6, etc. are installed in the gutter, and the wind sorting section Suction port 8 of suction dust remover 7 on one end side of d ¹
are connected to the intake port 9, the opening 10, and the intake port 11, respectively, and are installed so that the sorting air flows above each conveyor and the rice storage section 12.

In addition, the hulling section d ² is configured such that a hopper 14 is installed above the removal chamber of both the removal rolls 13 so that the lower side thereof is on the side of the mixed rice conveyor ⁴ , and
On one side, a mixed rice thrower 15, a paddy thrower 16, and a brown rice thrower 17, which communicate with the conveyors 4, 5, and 6, respectively, are arranged, and the upper part of the paddy thrower 16 is installed so as to communicate with the hopper 14. , so that power is transmitted to each part by a motor M installed in the wind selection part ^d1 .

A rotary grain sorter E, which is integrated with the huller D and constitutes a huller and sorter, is mounted above the other half of the wind sorting section ^d1 . A cylindrical rotary sorting tube A with both ends open is installed inside the case 18 in , and brown rice is sufficiently filled on the mixed rice supply side of the sorting tube A, that is, on the inner peripheral surface from one end side A to the middle part. A large number of recesses 1 are formed, the size of which allows the paddy to be inserted, but the size of which does not allow the paddy to be inserted.
A large number of small recesses 2, which are slightly smaller than that and large enough to fit only brown rice, are formed, and the recesses in the middle part C from the recess 1 side to the small recess 2 side are gradually shaped as shown in Fig. 5. Form it so that it becomes smaller.

A total of 4 tubes are placed on the lower left and right sides of both ends of the sorting tube A.
The rollers 19 are brought into contact with each other so that they can be supported, and each roller 19 is rotated by both drive shafts 20, 20, and the sorting cylinder A is installed so that it can be rotated to one side by the frictional contact of the rollers 19. Pressing rollers 21, 21 are installed above both ends of the cylinder A so as to be in contact with each other, and a lower opening of a supply tank 22 fixedly installed at one end side of the case 18 so as to communicate with the tip of the mixed rice thrower 15 is connected to the sorting cylinder. A gutter 2 installed so as to extend inwardly at the lower part of one end side A of A and communicating with the lower part outwardly at the other end side B of the sorting tube A;
3 is installed so as to communicate with the upper part of the paddy conveyor 5.

A V-shaped receiving gutter B whose both ends are connected to the case 18 is fixed on the inner lower side of the sorting tube A, and the receiving gutter B
An adjustment plate 24 that approaches the upper inner circumferential surface of the sorting tube A is connected to the upper part of one side so that the inclination can be changed and adjusted around the shaft 25 at the base, and a rotating plate 24 is installed in the lower center of the receiving gutter B. A spiral conveyor C rotated by a shaft 26 is installed, and a gutter 27 is connected to the terminal end of the spiral conveyor C near one end of the sorting tube A.
The lower part of the gutter 27 is installed so as to communicate with the flow plate 28 on the upper side of the brown rice conveyor 6, and a belt pulley 30 is connected to each rotating shaft 20, 20, 26 from a gear box 29 which is driven by the motor M.
It is installed and configured to transmit power through the

Therefore, when paddy is fed to the hopper 14 during operation, the paddy removed by the huller ^d2 is transferred to the wind sorter ^d1.
The mixed rice that has been sorted inside and dropped into the mixed rice conveyor 4 is lifted into the supply tank 22 by the mixed rice thrower 15, and is fed inward from the lower part of the tank 22 to one end side of the sorting tube A. The mixed rice is deviated in the direction of rotation of the sorting tube A rotating in the direction of arrow D, forming a circulating fluidized bed P, while the brown rice is fitted into the recess 1 and lifted upwards, but the paddy is not in the recess 1. Even if the brown rice is inserted into the container, it falls off early, slides down the surface of the fluidized bed P as shown by the arrow T, and flows backward, and the brown rice that is lifted upward falls off from the recess 1 at the top and falls into the spiral conveyor C in the receiving gutter B. Even if the brown rice is inserted into the recess 1, it falls during lifting and moves in the direction of the arrow H along with the paddy, and is subjected to a sorting action by the inner circumferential surface forming the small recess 2. On the inner peripheral surface forming this small recess 2, the mixing ratio of brown rice becomes small due to the lifting action of the recess 1, and conversely, the mixing ratio of paddy increases and the paddy tries to fit into the small recess 2. Since the small recess 2 is formed to be smaller than the recess 1, the paddy cannot fit therein, but only the brown rice fits therein, and is received by the receiving plate 24 in the same manner as described above and falls into the spiral conveyor C, and the paddy enters the small recess 2. However, the paddy grains cannot be inserted into the paddy belt and slide down while being further transferred in the direction of the arrow H, passing through the gutter 23 and falling onto the paddy conveyor 5, whereupon the paddy thrower 16 sends the paddy grains to the hopper 14.
He was jumped up and escaped again.

The brown rice that has fallen onto the spiral conveyor C is conveyed as it is in the direction of the arrow and passes through the gutter 27 to the flow down plate 2.
The brown rice falls into the brown rice conveyor 6 from the brown rice conveyor 8, and is further lifted up by the brown rice thrower 17 and taken out.

As described above, the present invention provides a method for applying a method to the inner circumferential surface of the cylindrical rotary sorting cylinder from the mixed rice supply side to the middle part in a rotary grain sorter that is integrated with a huller and constitutes a huller sorting device. A large number of recesses are formed that are large enough to fully fit brown rice, and a small recess that is slightly smaller than the recesses and large enough to fit only brown rice is formed on the inner peripheral surface from the middle part to the paddy discharge side. 2 is made of multi-cedar wood, and a spiral conveyor is mounted on the shaft within the brown rice receiving trough installed in the sorting tube, and the paddy discharge side end of the sorting tube is communicated with the hulling section. The mixed rice fed into the sorting cylinder is shifted in the direction of rotation of the sorting cylinder and moves toward the paddy discharge side while forming a circulating fluidized bed, while the brown rice is lifted into the receiving trough. Because it is selected,
From the mixed rice supply side to the middle part, the mixing ratio of brown rice in the mixed rice is high and the mixing ratio of paddy is small, whereas from the middle part to the paddy discharge side, the mixing ratio of paddy is high and the mixing ratio of brown rice is small. Although the ratio is small, from the mixed rice supply side where the mixing ratio of brown rice is large to the middle part, a recess large enough to fit the brown rice is formed, which enhances the lifting action of the brown rice. This improves the sorting accuracy while increasing the efficiency. Also, from the middle part where the paddy mixing ratio is high to the paddy discharge side, there is a small recess into which only brown rice is inserted, so the mixing ratio is higher than brown rice. Even if ripened paddy tries to be inserted first, it cannot be inserted and only the unpolished rice is lifted, so the paddy is not mixed into the lifted unpolished rice, and it is sorted without reducing the sorting accuracy. The sorting tube improves the sorting efficiency and allows for accurate sorting, and the paddy coming out from the paddy discharge side is returned to the huller and removed again, allowing for good hulling and sorting, and the overall It has the feature that it can be made small and can be suitably implemented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the rice hulling sorting device, FIG. 2 is a sectional view thereof, FIG. 3 is a vertical sectional view of a part of FIG. 2, and FIG. A part of FIG. 2 is shown, and FIG. 5 is an explanatory diagram showing a recess and a small recess. A...Sorting tube, 1...Concave portion, 2...Small concave portion, E
...Rotary grain sorter, d ² ...hulling section, B...receiving trough, C... spiral conveyor, D... hulling machine.

Claims (1)

[Claims] 1 Brown rice is placed on the inner peripheral surface of the cylindrical rotary sorting cylinder A from the mixed rice supply side to the middle part in the rotary grain sorter E that is integrated with the huller D to form the huller sorter. A large number of recesses 1 are formed that are large enough to fit the rice, and on the inner circumferential surface from the middle to the paddy discharge side, there are small recesses 2 that are slightly smaller than the recesses 1 and large enough to fit only brown rice. A spiral conveyor C is installed in a receiving gutter B for receiving brown rice installed in the sorting tube A,
A rice hulling sorting device characterized in that the rice discharge side end of the sorting tube A is communicated with the hulling section ^d2 .