JPS63130177A - Cereal grain selector - Google Patents

Abstract

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

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention provides a swing sorting device and a next step for sorting paddy into brown rice, paddy, and a mixture of both after hulling and wind sorting. It is related to the joint method between the particle size sorting equipment.

(b) Prior Art Conventionally, in a grain sorting device, a rocking sorter is used to sort brown rice, paddy, and mixed rice, and in the next step, the brown rice after sorting is passed through a grain size sorter. It is considered to be publicly known.

For example, Japanese Patent Application Laid-Open No. 114743/1983.

However, in this conventional configuration, the outlet at the end of the oscillating sorter is divided into three types: brown rice, mixed rice, and paddy, and the flow of brown rice is divided into two directions, which are the same. Depending on the conditions, it was branched into two directions by two particle size sorters.

(c) Problems to be Solved by the Invention The purpose of the present invention is to solve the following problem: In the conventional grain size sorter, the input brown rice contains a high content of immature rice. It is necessary to increase the sorting time in the particle size sorter, which increases the overall length.

The present invention lowers the rate of immature rice in good brown rice and reduces the burden on the grain size sorter by separately taking out the immature rice in the mixed rice and putting it into a separate grain size sorter for sorting. It is lowered.

(d) Means for Solving the Problems The objects of the present invention are as described above. Next, the configuration for achieving the objects will be explained.

At the outlet of the swinging sorter, which sorts the mixed rice after hulling and wind sorting by swinging the inclined sorting plate, four types of rice are sorted in order from the shaking side: immature rice, brown rice, mixed rice, and paddy. It constitutes a take-out port, and the mixed rice is returned to the mixed rice elevator, the paddy is returned to the paddy elevator, and immature rice and brown rice are supplied to different grain size sorters.

(E) Function of the Invention The structure of the present invention is as described above, and the function will be explained next.

If the outlet of the oscillating sorter is divided into three types, brown rice, mixed rice, and paddy, as in the past, the oscillating sorting machine will be located near the end of the shaking side of the slanted sorting plate, above the layer of good brown rice. The unripe rice layer is also included in the brown rice layer.

It is known that in a shaking sorter, a layer of immature rice is formed on the shaking side of the brown rice layer, but the width of this area is so narrow that it is difficult to completely distinguish it from the brown rice layer. Therefore, in conventional grain sorting equipment, the brown rice and immature rice that have been sorted in the shaking sorter are mixed again to form a brown rice layer, and this is divided into two under the same conditions again to separate the two grain sizes. It was being supplied to a sorting machine.

However, the percentage of immature rice contained in good quality brown rice reaches approximately 5%, and although some of the immature rice is only blue in color, most of the grain size is small, and the grain size is sorted in the next step. In the machine, many of the pieces fall through the sieve.

Therefore, by remixing most of the classified rice in the oscillating sorter and removing it from the layer of good quality brown rice in the particle size sorter in the next step, it is necessary to remove a large amount of good brown rice from a large amount of good brown rice. This means that the grain size sorter has to remove the small rice, which increases the burden on the grain size sorter.

As a result, the small rice in immature rice is not removed sufficiently, resulting in deterioration of the quality of brown rice.

In the present invention, the immature rice that has been separated by the oscillating sorter is not mixed again, but is separated as a layer of immature rice, and only this part is fed into another grain size sorter,
By lowering the rate of immature rice in the brown rice layer and feeding the brown rice layer into a separate grain size sorter, it is possible to better sort out immature rice.

(f) Embodiment The object, structure, and operation of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Fig. 1 is a front view of the rice hulling sorting device, Fig. 2 is a side view thereof, and Fig. 3 is a drawing showing the arrangement of the oscillating sorter 1 and grain size sorters 2 and 3 showing the main parts of the present invention. It is.

The rice hulling sorting device will be explained with reference to FIGS. 1 and 2.

From the drying device, dried rice is placed into a hopper 19 of a rice lifting machine 10 via a conveying pipe 18.

The paddy is fried by a paddy elevator 10, and then fed from a hoist tank 13 to a hulling section constituted by rubber rolls 6.

The rice that has been hulled by the rubber rolls 6 and made into a mixture of brown rice, rice husks, and rice passes through a wind selection section by a wind selection fan 14, and the rice husks are sucked and conveyed to the rice husk room through a piping 16. It is.

Further, in the wind sorting section, immature grains such as arsenic are collected on an immature grain conveyor 15.

Further, the mixed rice of paddy and brown rice from which the chaff has been separated is conveyed from the mixed rice conveyor 8 to a conveyor elevator 11 arranged at the rear.

The rice is fried by the conveyor elevator 11 and transferred to the mixed rice tank 1.
7 into the oscillating sorter 1.

The oscillating sorter 1 has a plurality of stacked sorting plates, and the oscillating sorting is performed for each sorting plate before the material comes out at the outlet.

Since the plurality of sorting plates are arranged at the same inclination and in the same configuration, brown rice, mixed rice, and paddy form layers in the same way from top to bottom.

A layer of immature rice, such as green rice, forms above the brown rice on the shaking side.

Conventionally, the layer of immature rice such as green rice was mixed again and allowed to fall into the brown rice outlet.

In the present invention, of the conventional three outlets for brown rice, mixed rice, and paddy, the mixed rice outlet is divided into two, and an unripe rice outlet 1a is provided on the shaking side. The other part is the brown rice outlet 1b, and the mixed rice outlet 1c and the paddy outlet 1d are constructed in the same manner as in the past.

The paddy that falls to the paddy outlet 1d is collected on the paddy conveyor 7,
The paddy is put into the paddy elevator 10 and returned to the rubber roll 6 again to remove the paddy.

Further, the mixed rice at the mixed rice take-out port IC is merged into the mixed rice conveyor 8, and then fed back into the oscillating sorter 1 from the conveyor elevator 11.

The main part of the present invention is that the layer of good quality brown rice that falls from the brown rice outlet 1b is fed into one grain size sorter 3 through the chute 5b, and the unripe rice in the unripe rice outlet 1a is transferred to the other grain size sorter 3 by the chute 5a. It is fed into the sorting machine 2.

Naturally, the amount of good quality brown rice fed into the grain size sorter 3 is larger, and the amount of immature rice fed into the grain size sorter 2 is smaller. Since there is only a small amount of contamination, it is easier to sort than the conventional method of mixing unyielded rice and brown rice to increase the rate of immature rice, dividing it into two, and feeding it into a particle size sorter. This reduces the load.

In addition, although the amount of unripe rice in particle size sorter 2 is small, the ratio of unripe rice to it is close to 70%, and some of that is green rice and has a large diameter. Therefore, it does not pass through the sieve, but other types of rice are green rice and immature rice that are slightly smaller in diameter, and most of them can pass through the sieve.

However, since the amount is small, the burden is lighter than when immature rice and good brown rice are mixed, as mentioned above.

This reduces the burden on both particle size sorters and improves their sorting performance.

Figure 4 is a rear sectional view showing a configuration in which a brown rice brasocher is placed on top of the particle size sorter, and Figure 5 is a side sectional view as well.
FIG. 6 is also an enlarged sectional view of the brown rice brasochar portion.

After hulling, the surface of the brown rice has the bran that was stuck between the brown rice and the rice husks, giving it a dirty appearance.

In this configuration, brown rice before entering the particle size sorter is polished by a brown rice brusher to remove bran and small rice.

As shown in FIG. 6, the structure of the brown rice brusher is that the blades of a sirocco fan 21 are provided in the center, and an elastic plate 9 is attached to the tip of the blade of the sirocco fan 21.

The tip of the elastic plate 9 rotates while being in contact with the inside of the sieve tube 22 constituted by a sieve plate, and the ridge receiving tube 23 is arranged on the outside. When the fan 21 is rotated, the elastic plate 9 on its outer periphery is rotated, and the brown rice put inside the sieve tube 22 is brushed and polished between the elastic plate 9 and the sieve tube 22.

The bran, dust, small rice, etc. adhering to the surface of the brown rice are extracted through the holes of the sieve tube 22 and fall between the sieve tube 22 and the ridge receiver tube 23.

The bran, etc. in the ridge receiving tube 23 passes through the gutter 24 and the gutter 25, and falls onto the small rice conveyor 27 at the lower end.

The brown rice whose surface has been polished without coming out of the sieve tube 22 is branched from the brown rice gutter 31 and fed into each particle size sorter 26 where the particle size is sorted, and the grains do not fall out from inside the particle size sorter 26. The brown rice is fed into the brown rice elevator through chute 28.

The rice, bran, and dust are collected on the rice conveyor 27 and fall from the chute 29.

30 is a direct feed chute when the brown rice does not pass through the brusher.

(G) Effects of the Invention The present invention is as described above, and provides the following effects.

In other words, when the immature rice and good brown rice that have been separated in the shaking sorter a1 are mixed again, divided into two parts under the same conditions, and passed through a particle size sorter as in the past, a large amount of good brown rice is mixed. Since the unripe grains are removed from the brown rice, it takes a considerable amount of time to completely remove the grains, and it is necessary to increase the length of the grain size sorter. By separating the outlet 1a and the brown rice outlet 1b and feeding the immature rice and good brown rice from both into separate grain size sorters, the rate of immature rice on the good brown rice side is reduced, and small rice is removed. This can be done in a short time, and since only the unripe rice layer is fed into the grain size sorter, the rate of small rice is high, but since the amount is small, sorting can be done smoothly, and there is no burden on either grain size sorter. It is possible to improve the sorting performance by reducing the

[Brief explanation of the drawing]

Fig. 1 is a front view of the rice hulling sorting device, Fig. 2 is a side view thereof, Fig. 3 is a drawing showing the arrangement of the swing sorter 1 and grain size sorters m2 and 3, which show the main parts of the present invention, Figure 4 is a rear sectional view showing a configuration in which a brown rice brusher is placed on top of the grain size sorter;
FIG. 5 is a side sectional view, and FIG. 6 is an enlarged sectional view of the brown rice bran. 1... Oscillating sorter 1a... Immature rice outlet 1b... Brown rice outlet IC... Mixed rice outlet 1d... Hull outlet 2... Immature rice grain size sorter 3 ...Good brown rice grain size sorter

Claims (1)

[Claims] At the outlet of the swinging sorter, which sorts the mixed rice after hulling and wind sorting by swinging the inclined sorting plate, four types of rice are sorted in order from the shaking side: immature rice, brown rice, mixed rice, and paddy. A grain sorting device comprising a take-out port, in which mixed rice is returned to a mixed rice elevator, paddy is returned to a paddy elevator, and immature rice and brown rice are supplied to different grain size sorters.