JPH01307459A - Rotary sorting drum type rice husker - Google Patents

Abstract

PURPOSE:To reduce the double husking phenomena of unpolished rice and to prevent unpolished rice damage by furthermore sorting grains discharged from the terminal side of a rotary sorting drum to reduce unpolished rice and thereafter returning the grains to a husking part. CONSTITUTION:Both a rotary sorting drum 11 which is formed with may potholes on the inner peripheral surface and rotated around the horizontal shaft and a husking part 1 are placed on an air sorting machine 33 in which an air sorting path 4 for air-sorting rice slid down from the husking part 1 is incorporated. A lower gutter 16 for receiving unpolished rice is provided to the inside of the sorting drum 11 and grains after sorting which have been discharged from the terminal side of the sorting drum 11 are fed to the initial end side of an unpolished and unhulled rice sorter 25 consisting of an unpolished rice leak sorting part 27 and an unhulled rice leak sorting part 28. The grains leaked from the sorting part 27 of the sorter 25 are returned to a carrier route 7 connected to the sorting drum 11 for rice slid down from the husking part 1. Furthermore the grains leaked from the sorting part 28 of the sorter 25 are returned to the husking part 1. As a result, the double husking phenomena of unpolished rice are reduced.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is a rotating sorting cylinder having a large number of pot holes on its inner circumferential surface, and is used in a hulling machine for sorting mixed rice of paddy and brown rice. can do.

[Conventional technology]

There is a hulling machine that is equipped with a rotary sorting cylinder that has a large number of potholes in its inner circumferential surface and rotates about a horizontal axis, and a removal part. Inside this rotary sorting cylinder, there is a finishing rice trough that receives the brown rice that has been pumped up high through the pot hole, and in the process of the grains to be sorted flowing from the sorting start side to the sorting end side of the rotary sorting tube,
Most of the brown rice is sorted and removed, and grains consisting mainly of unhulled rice are discharged from the sorting end side of the rotary sorting tube. Then, the discharged grains are returned to the husking section and the husking operation is performed again.

[Problems to be Solved by the Invention] In the conventional device, the grains discharged from the terminal end of the rotary sorting tube are grains mainly composed of unhulled rice, but some brown rice is mixed in. That is the reality.

This invention further sorts the grains discharged from the terminal end of the rotary sorting tube to reduce the amount of brown rice before returning it to the husking section, thereby reducing the double rubbing phenomenon of brown rice and preventing spoilage of brown rice. The aim is to prevent

[Means to solve the problem]

The technical means of the present invention for solving such technical problems is to install an internal wind-selecting machine body 33 having a wind-selecting path 4 for wind-selecting the fallen rice from the shedding section 1. A rotary sorting cylinder 11 having a large number of pot holes on its circumferential surface and rotating around a horizontal axis, and a scraping section 1 are placed thereon, and inside this rotary sorting cylinder 11 there is a finished rice trough 16 for receiving brown rice. The sorted grains discharged from the sorting end side of the rotary sorting cylinder 11 are transferred to the sorting start end side of the brown rice/hull rice sorting device 25, which is composed of a brown rice leakage sorting section 27 and a paddy rice leakage sorting section 28. The brown rice leakage sorting section 27 of this brown rice/hulled rice sorting device 25 is configured to be able to supply grains.
It is constructed so that the grains leaking from the husking section 1 can be returned to the conveyance route for the scraped rice scraped off from the husking section 1 to the rotary sorting tube 11, and the brown rice/hulled rice sorting device r! The structure of the rotary sorting cylinder type huller is characterized in that the grains leaked from the unhulled rice leakage sorting section 28 of 125 can be returned to the husking section 1.

[Operation and effect of the invention]

The scraped rice scraped off by the scraping section 1 is sorted in a lower scraped rice sorting path 4, and then supplied to the sorting start end side of the rotary sorting tube 11. Next, the brown rice is pumped up through the pot hole of the rotary sorting cylinder 11, and the brown rice that has been pumped up to a high level is sent to the upper finishing rice gutter 16.
The unhulled rice that has fallen into the rotary sorting tube 11 and has been drawn up is sorted while falling into the rotary sorting tube 11. Under such sorting action, the grains to be sorted flow from the sorting start end to the sorting end, and grains mainly consisting of unhulled rice are discharged from the sorting end of the rotary sorting cylinder 11. Next, this grain is supplied to the sorting start side of the paddy rice/brown rice sorting device 25. While flowing from the sorting start side to the sorting end side of this hulled rice/brown rice sorting device 25, the grains are subjected to a sorting action, and small grains of brown rice leak from the brown rice leakage sorting section 27 and from the husking section 1. It joins the scraped rice and is supplied to the rotary sorting cylinder 11 together with the scraped rice.

The rotary sorting tube 11 undergoes the sorting action again. Further, large grains leaking from the unhulled rice leakage sorting section 28 of the unhulled rice/brown rice sorting device 25 are returned to the husking section 1, where they are subjected to the husking action again.

As mentioned above, the sorted grains discharged from the sorting end side of the rotary sorting tube 11 are supplied to the paddy/brown rice sorting device 25 and re-sorted, and the small grains are re-sorted by the rotary sorting tube 11. As a result, the supply of small grains of brown rice to the husking section 1 is reduced compared to the conventional device, and the phenomenon of double rubbing of brown rice in the husking section 1 is reduced, reducing damage to the brown rice. can do.

〔Example〕

Embodiments of the invention shown in the drawings will be described below.

First, the configuration of the embodiment will be explained. 1 is a paddy hopper 2. A pair of depu rolls 3,
It is made up of 3rd grade. 4 is a sliding rice wind selection path, in which the separating air generated by the suction fan 5 in front of the rice sloughing section 1
The rice husks are discharged from the machine through the suction fan 5 and the dust exhaust pipe 6, and the mixed rice of brown rice and paddy is
The rice falls into the rice catcher 7 below. The mixed rice that has fallen into the dropped rice receiving gutter 7 is fried by a mixed rice lifting machine 8, and is conveyed via a mixed rice hopper 9 to the starting end of a supply gutter 14 which also serves as a mixed rice receiving gutter. has been done.

Reference numeral 10 denotes a sorting case, and inside this sorting case 10, there is a rotary sorting cylinder 11 having a large number of pot holes on its inner circumferential surface.
It can be rotated in a horizontal state.

The supply end (right side in FIG. 1) and the discharge end (left side in FIG. 1) are rotatably supported by drive rollers 12.12. Inside this rotary sorting tube 11, there is a supply helix 1.
A supply gutter 14 with a rice helix 3 and a finishing rice gutter 16 with a finishing rice helix 15 are installed horizontally.

In arranging the supply gutter 14 and the finished rice gutter 16 inside the rotary sorting tube 11, the supply gutter 14 is placed on the pumping side of the rotary sorting tube 11 rotating from the bottom to the top, as shown in FIG. A finishing rice gutter 16 is arranged on the side of the rotary sorting cylinder 11 that rotates from above to below, and the mixed rice drawn up through the pot hole of the rotary sorting cylinder 11 falls into the supply gutter 14.
The rice is transferred to the terminal end of the supply gutter 14 by the supply helix 13, and the feed gutter 14 also functions as a mixed rice receiving gutter.

The discharge side end of the finished rice trough 16 is communicated with the finished rice receiving trough 19 via a finished rice flow lower cylinder 17 and a finished rice flow grain plate 18. While the finished rice is falling from the finished rice flow down pipe 17 and the finished rice flow grain board 18 to the finished rice receiving trough 19, the brown rice that is wind-selected by the finishing rice wind selection path 20 and flows down to the finished rice receiving trough 19 is as follows. The finished rice is taken out of the machine via the grain lifting machine 22.

A paddy receiving trough 23 is provided below the discharge side end of the rotary sorting tube 11, and the grains mainly consisting of unhulled rice that have fallen from the sorting end side of the rotating sorting tube 11 are collected in the paddy receiving trough 23. It falls and is supplied to the sorting start side of the brown rice/hulled rice sorting device 25 by the paddy lifting machine 24.

This brown rice/hulled rice sorting device 25 is connected to a re-sorting hopper 26 and an outlet of the re-sorting hopper 26, and has a brown rice leakage sorting section 27. It is connected to the lower part of the brown rice leakage sorting section 27, and is connected to the unhulled rice leakage sorting section 28 from which large grains of unhulled rice leaks, and to the lower part of the unhulled rice leakage sorting section 28, which collects foreign substances such as stones. It is composed of a collecting section 29. The small grains of brown rice leaked from the brown rice leakage sorting section 27 are supplied to the dropped rice receiving trough 7 through the brown rice flow path 30, and join the dropped rice from the scraping section 1. Further, large grains of unhulled rice leaked from the unhulled rice leakage sorting section 28 are supplied to the dehulling rolls 3, 3 via the unhulled rice return hopper 31. Note that 32 is an on-off valve for the foreign matter collecting section 29. 3
3 is a wind-selecting machine which is equipped with a wind-selecting section for crushed rice and a wind-selecting section for unpolished rice.

Next, the operation of the embodiment will be explained. When carrying out hulling work, raw rice is supplied to the rice hopper 2, and each rotating part of the rice hulling machine is driven. Then, the paddy rolls 3, 3 are removed from the paddy hopper 2.
The paddy supplied to the tank is subjected to a dehulling action, and the crushed rice is sorted by the crushed rice wind sorting path 4 located below. The rice husks are then discharged to the outside of the machine via a suction fan 5 and a dust exhaust pipe 6. The mixed rice of brown rice and paddy falls into the sliding rice receiving trough 7, is fried by the mixed rice lifting machine 8, passes through the mixed rice hopper 9, and goes to the starting end of the supply trough 14 on the rotary sorting cylinder 11 side. Supplied. Next, the supply gutter 14
It is supplied to the supply side end of the rotary sorting tube 11 by the supply helix 13 inside.

The mixed rice is then pumped up through the pot hole of the rotary sorting tube 11, which is rotating clockwise in FIG. The small brown rice that has been pumped high falls into the finishing rice gutter 16, and
The mixed rice of paddy and some brown rice that has been pumped up falls into the supply gutter 14 and is sorted. Next, the unsorted mixed rice that has fallen into the supply gutter 14 is transferred to the feed gutter 14 by the feed helix 13.
From the conveyance terminal end, the material is again supplied to the sorting start end side of the rotary sorting tube 11, and is re-sorted.

In addition, brown rice that has fallen into the finishing rice gutter 16 is removed from the finishing rice helix 1.
At step 5, the finished rice is conveyed to the lower cylinder 17. Next, while falling through the finished rice flow grain plate 18 to the finished rice receiving trough 19, it is sorted by a sorting wind and taken out of the machine by the finished rice lifting machine 22.

The grains mainly composed of paddy after sorting sent to the sorting end side of the rotary sorting tube 11 fall into the paddy receiving trough 23 below, and then
The grains are fried by the paddy hoisting machine 24 and supplied to the re-sorting hopper 26 of the brown rice/hulled rice sorting device 25 located above.

The grains supplied to the re-sorting hopper 26 are sorted while flowing down the brown rice leakage sorting section 27 and the unhulled rice leakage sorting section 28 of the brown rice/hulled rice sorting device 25.

Then, the small grains of brown rice leak from the brown rice leakage sorting section 27, pass through the brown rice flow path 30, and are supplied to the fallen rice receiving trough 7.
It joins the scraped rice from the threshing section 1, is fried in a mixed rice fryer 8, and is sorted again in a rotary sorting tube 11.

In addition, large grains of unhulled rice leaked from the unhulled rice leakage sorting section 28,
The paddy is supplied to the dehulling roll 3°3 through the paddy reduction hopper 31, and undergoes the dehulling action again. In addition, foreign substances such as pebbles that do not leak from the brown rice leakage sorting section 27 and the paddy rice leakage sorting section 28 are
The foreign matter falls and is collected in the foreign matter collection section 29 at the lower end. When a certain amount of foreign matter accumulates in this foreign matter collecting section 29, the operator
2 is opened and the foreign object is removed.

As mentioned above, in this embodiment, the grains mainly consisting of unhulled rice after sorting discharged from the sorting end side of the rotary sorting tube 11 are supplied to the brown rice/hulled rice sorting device 25 and recycled. The sorted, small-grain brown rice joins the scraped rice in the husking section 1 and is re-sorted in the rotating sorting cylinder 11. Therefore, the return of small grains of brown rice to the dehulling section 1 is reduced compared to the conventional device,
It is possible to reduce damage to the brown rice by reducing the double rubbing phenomenon in the removing part 1 of the brown rice.

In addition, foreign substances such as pebbles that do not leak from the brown rice leakage sorting section 27 and the unhulled rice leakage sorting section 28 of the brown rice/hulled rice sorting device 25 are
The foreign matter falls and is collected in the foreign matter collection section 29 at the lower end. Therefore, it is possible to prevent the foreign matter from being supplied to the removal section 1 again, thereby preventing an adverse effect on the removal section 1.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, with FIG. 1 being a cutaway side view and FIG. 2 being a cutaway rear view. Explanation of symbols 1 Slipping section 2 Paddy hopper 3 Slipping roll 4 Slipped rice wind sorting path 5 Suction fan 6 Dust exhaust pipe 7 Slipped rice catcher 8 Mixed rice lifting machine 9 Mixed rice hopper 10 Sorting case 11 Rotary sorting Tube 12
[Moving roller 13 Supply helix 14 Supply gutter 15 Finished rice helix 16 Finished rice gutter 17 Finished rice flow lower tube 18 Finished rice flow grain board 19 Finished rice receiving gutter 2
0 Finished rice wind sorting path 22 Finished rice grain lifting machine 23 Paddy receiving value 24 Paddy grain lifting machine 25 Brown rice/hulled rice sorting device 26
Re-sorting hopper 27 Brown rice leakage sorting section 28 Paddy rice leakage sorting section 29 Foreign matter collection section 30 Brown rice flow path 31
Paddy return hopper 32 on-off valve

Claims (1)

[Scope of Claims] [1] A large number of pot holes are formed on the inner peripheral surface of the wind-selecting machine body 33 which is equipped with a wind-selecting path 4 for wind-selecting the fallen rice from at least the shedding section 1. A rotary sorting tube 11 that is rotated around a horizontal axis and a scraping section 1 are mounted, and a finishing rice gutter 16 for receiving brown rice is disposed inside this rotary sorting tube 11 to separate brown rice leakage. The brown rice/paddy rice leakage sorting section 28 consists of a
The brown rice leakage sorting section 27 of the brown rice/hulled rice sorting device 25 is configured to be able to supply sorted grains discharged from the sorting end side of the rotary sorting cylinder 11 to the sorting start end side of the unhulled rice/hulled rice sorting device 25.
The structure is configured such that the grains leaking from the paddy rice leakage sorting section 28 of the unhulled rice/hulled rice sorting device 25 can be returned to the conveyance path of the scraped rice scraped off from the husking section 1 to the rotary sorting tube 11. A rotary sorting cylinder-type huller is characterized in that it is configured to be able to return dropped grains to a husking section 1.