JPH0474573A - Method for taking out dehulled grain in unhulled price in hulling sorter - Google Patents

Abstract

PURPOSE:To take out dehulled grain and a small amount of unpolished rice from unhulled rice by carrying out the dehulling and winnowing of unhulled rice by a dehulling and winnowing machine and sorting the dehulled rice by a shaking sorter to obtain a mixture of dehulled grain and a small amount of unpolished rice and a mixture of unhulled rice/dehulled grain and a small amount of unpolished rice and taking out the former while sorting the latter by a grain sorter. CONSTITUTION:A shaking sorter B equipped with sorting plates 1 having rough surfaces and shaken at a shaking angle is provided to the post-process of a dehulling and winnowing machine A and a grain sorter C wherein a rotary sorting cylinder 2 having numberless sorting holes 2a formed to the peripheral surface thereof is horizontally provided is arranged to the post-process of the sorter B. Unhulled rice containing dehulled grain is lightly dehulled and winnowed by the dehulling and winnowing machine A to be sorted into a mixture of dehulled grain and a small amount of unpolished rice and a mixture of unhulled rice/dehulled rice and a small amount of unpolished rice by the shaking sorter B. The sorted mixture of dehulled grain and a small amount of unpolished rice is taken out and the mixture of unhulled rice/dehulled grain and a small amount of unpolished rice is sorted by the grain sorter C to take out dehulled grain and a small amount of unpolished rice from unhulled rice. That is, dehulled grain can be taken out by the combined use of an existing hulling sorter and efficiency is increased by the cooperation of the grain sorter.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a oscillating sorting machine that is provided with a grain sorting board that has a rough surface and that oscillates at a oscillating angle in the subsequent process of a dehulling wind sorter. Contaminants are mixed into the paddy harvested by a combine harvester, etc. using a hulling sorting device that is equipped with a grain sorting machine that has a rotating sorting cylinder with numerous sorting holes formed on its circumferential surface mounted horizontally in the rear stroke of the oscillating sorting machine. The present invention relates to a method for taking out descaled grains.

(b) Conventional technology In the past, a dedicated paddy sorting machine was installed to remove the dehulled grains that were mixed into the paddy harvested with a combine harvester or the like.

However, this would increase the equipment cost, so we are trying to take out the deweighed grains by using the existing hulling and sorting equipment, but the deweighed grains in the paddy are extremely small compared to the total amount of paddy. Therefore, it is difficult to separate the scaled grains from the paddy on the grain sorting plate supplied to the oscillating sorter by drifting, and it is extremely difficult to remove them from the paddy.

(c) Problems to be solved by the invention As described above, it is an extremely difficult task to remove the extremely small amount of demixed grains from the rice grains using the shaking motion of a shaking sorter, but this can be done somehow by the hulling sorter. The present invention was devised as a result of trial studies to see if the device could be used to successfully perform extraction.

(d) Means for Solving the Problems Therefore, in the present invention, as a method for removing the de-scaled grains from the rice grains by using a rice huller and sorting device, the grains are taken out by operating as follows.

That is, a oscillating sorter equipped with a grain sorting plate with a rough board surface and oscillating at an oscillating angle is installed in the rear stage of the deweighing air sorter, and sorting holes are formed on the circumferential surface in the rear stage of the oscillating sorter. There is a hulling sorting device consisting of a grain sorter horizontally hanging a rotary sorting cylinder formed with a countless number of grains. The dynamic sorter selects a mixture of descaled grains + a small amount of unpolished rice and paddy/demixed grains + a small amount of brown rice. The mixture of brown rice is sorted by a grain sorter, and the unmixed grains plus a small amount of brown rice are extracted from the paddy.

(e) Function With this configuration, in the case of hulling sorting, the paddy is dehulled and sorted by the dehulling wind sorter to obtain a mixture of brown rice and paddy, and this mixture is conveyed to the shaking sorter. The brown rice is sorted into brown rice and paddy, and the brown rice is fed to a grain sorter and sorted into large and small grains to obtain good quality brown rice, and the paddy is returned to the demixing wind sorter to be re-weighed.

In addition, when removing the descaled grains from the paddy using this hulling sorting device, the gap between the deweighing rolls of the deweighing air sorter is slightly increased and a portion of the paddy is deweighed to obtain a small amount of brown rice. When the grains are sorted using a shaking sorter, either unbalanced grains + a small amount of brown rice are selected on the upper side of the grain selection board, paddy, unscaled grains + a small amount of brown rice are selected on the lower side of the grain selection board, or a mixture of these is selected in the middle part. The unscaled grains + a small amount of brown rice selected on the shaking side are taken out of the machine, and the mixture in the middle is returned onto the grain selection board, and the unscaled grains + a small amount of brown rice selected on the shaking side are returned to the grain selection board. A small amount of brown rice is sorted by a grain sorter into paddy, unhulled grains, and a small amount of brown rice, and the paddy is placed in a silo, and the descaled grains and a small amount of brown rice are taken out of the machine.

(F) EXAMPLE The extraction method according to the present invention will be explained below using example diagrams.

(^) is a scale-removal wind separator consisting of a pair of scale-removal rolls (3) and a wind-selecting section (4) for wind-selecting the material that has fallen off the scale. An oscillating sorter (C ) is a grain sorting machine equipped with a rotary sorting cylinder (2) that has numerous sorting holes (2a) formed on its circumferential surface and is rotatably mounted horizontally, with the discharge side slightly lower than the supply side and tilted. , the sorting hole (2a) on the discharge side is larger than the sorting hole (2a) on the supply side.
) can be made smaller.

Each IN (A) (B) (C) is equipped with an oscillating sorter (B) in the downstream process of the deweighing wind sorter (A), and a grain sorting machine in the downstream process of the oscillating sorter (B). Machine (C) is installed,
As shown in Figure 2, the paddy that is put into the paddy elevator (5) as shown in (a) is lifted up into the paddy tank (6) as shown in (b).
), and the paddy in the paddy tank (6) is passed through the deweighing air sorter (
A) is rubbed off by the agitation roll (1), and is air-selected by the wind selection section (4) to remove dust such as rice husks and light objects such as scum.
After the rice is removed, the mixed rice of brown rice and paddy enters the mixed rice elevator (7) as shown in (c), is lifted into the storage tank (8), and is transferred to several stages of the swinging sorter (B). Stacked grain selection boards (1
)...The flow is deflected toward the lower side in the vertical direction on the plate surface that is supplied to the top and oscillates in the horizontal direction with a oscillation angle, and the flow is shifted toward the lower side in the vertical direction.
Brown rice is selected from X), paddy is selected from the shaking side (Y), and mixed rice is selected from the middle area.
As shown in d), the brown rice flows into the elevator (9) and is sorted into grains 1! (
C) is fed into the rotary sorting cylinder (2) to separate large, medium, and
The rice is sorted into small grains, and large-sized good brown rice is taken out and sorted as shown in (ne), medium-sized immature grains are taken out as shown in (he), and small-sized scrap rice is taken out and sorted as shown in (g). And the paddy on the shaking side (Y) is (
The rice is returned to the rice lifter (5) as shown in h) and fed again to the deweighing air sorter (A), and the mixed rice in the middle is sent to the oscillating sorter (7) by the mixed rice lifter (7) as shown in (h). It is reduced to B).

Next, when removing the dehulled grains from the paddy containing dehulled grains, the first
As shown in the figure, this paddy is put into the paddy elevator (5) as shown in (a), lifted, and flows into the paddy tank (6) as shown in (b). Wind sorting machine for unweighing paddy (A)
is fed to the deweighing roll (3). In that case, the gap between the de-weighing rolls (3) (3) should be slightly increased to achieve a deweighing rate of 20 to 30.
% and remove some of the paddy to obtain a small amount of brown rice. This material is then passed through the wind sorting section (4) to remove dust such as rice husks and light objects such as husks. Is it a mixture? (Ha)
The mixed rice goes into the elevator (7) and goes into the storage tank (8).
Grain sorting plates (1) stacked in several stages of the oscillating sorter (B) are fed to the top of the plate and oscillate horizontally at an oscillating angle. The flow is biased toward the lower side of
The unmixed grains + a small amount of brown rice are transferred from the upper shaking side (X) to the lower shaking side (Y).
The hulled paddy, dehulled grains + a small amount of brown rice, and a mixture thereof are selected from the middle section, and the selected dehulled grains + a small amount of brown rice on the shaking side are taken out of the machine as shown in (d). The mixture from the middle part is raised and lowered as shown in (ne) 1! (
7) is returned to the storage tank (8), and the paddy/deweighed grains + a small amount of brown rice on the shaking side flows into the brown rice elevator (9) as shown in (to) and is transferred to the rotating sorting cylinder of the grain sorter (C). (2), first the unhusked grains + a small amount of brown rice leak out from the sorting hole (2a) and are taken out as shown in (G), then the paddy leaks out from the sorting hole (2a) and is taken out as shown in (G). The grains are taken out and transported to a silo as shown in (h), straw waste etc. are discharged from the discharge side end of the rotary sorting cylinder (2), and the descaled grains are sorted and taken out along with a small amount of brown rice.

(G) Effects of the Invention As described in detail above, the method of taking out the descaled grains according to the present invention includes a grain sorting board that has a coarse plate surface and swings at a rocking angle in the subsequent process of the deweighing air sorter. A grain sorting device is provided with a oscillating sorter equipped with a oscillating sorter, and a grain sorter horizontally suspending a rotating sorting cylinder having numerous sorting holes formed on its circumferential surface in the rear stage of the oscillating sorter. The paddy containing the stirred grains is gently deweighed and air-sorted using a stirring air sorter, and then the unhulled grains + a small amount of brown rice are separated using a swinging sorter.
A mixture of descaled grains + a small amount of brown rice is selected, and the selected descaled grains + a small amount of brown rice are taken out, and the mixture of paddy/demixed grains + a small amount of brown rice is sorted by a grain sorter and removed from the paddy. Stirring grains +
Since we decided to take out a small amount of brown rice, we made the gap between the stirring rolls of the demixing air sorter slightly larger and removed a portion of the paddy to obtain a small amount of brown rice, thereby removing the extremely small amount contained in the paddy. Brown rice is added to the descaled grains, and by increasing the amount of similar grains, it becomes possible to perform the drift separation effect by the grain sorting plate, and the descaled grains are taken out along with a small amount of brown rice, so that the existing hulling and sorting equipment can also be used. By making it possible to take out the de-scaled granules, the efficiency is further improved.

[Brief explanation of the drawing]

The drawings are for illustrating embodiments of the present invention, in which FIG. 1 shows the removal process of the demixed grains, and FIG. 2 shows the process of hulling and sorting.

Claims (1)

[Claims] 1) Oscillating sorting machine (B) equipped with a grain sorting board (1) with a rough board surface and swinging at a swinging angle in the post-stroke of the de-air sorting machine (A)
A sorting hole (
This is a hulling sorting device consisting of a grain sorter (C) which horizontally suspends a rotating sorting cylinder (2) formed with a countless number of grains 2a), and the rice grains containing the grains are removed by the dehulling machine (A). Lightly de-grained and wind-sorted, this is separated into de-grained grains + a small amount of brown rice, paddy, and
A mixture of dehulled grains + a small amount of brown rice is selected, the selected dehulled grains + a small amount of brown rice are taken out, and the mixture of hulled/dehulled grains + a small amount of brown rice is sorted by a grain sorter and removed from the paddy. ■Grains+
A method of removing grains from the paddy using a huller sorting device that removes a small amount of brown rice.