JP2008253909A - Rice hulling sorter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice hulling sorter of which a stone sorting part is miniaturized and also of which the whole constitution is miniaturized. <P>SOLUTION: The rice hulling sorter is characterized in that a swinging separation part C arranges a sorting plate 17 consisting of a coarse surface slantingly so that it is possible to swing, at the inclination higher side of the swing direction of the sorting plate 17 a brown rice area is formed, at the inclination lower side a rice hull area is formed and at the intermediate a mixed rice area is formed, and provides a rice hull partition plate 22 and a brown rice partition plate 23 to divide each area and provides a stone partition plate 24 to divide the rice hull area to the rice hull small stone area mixed with a foreign matter such as small stones and the like at the further inclination higher side of the brown rice partition plate 23. It is further characterized in that a rice hull discharging gutter 29, a mixed rice discharging gutter 31, a brown rice discharging gutter 32 and a brown rice small stone discharging gutter 35 are provided respectively at the lower part of each area. Also it is further characterized in that the brown rice small stone discharging gutter 35 communicates with the brown rice elevator 34 through the stone sorting part D and the brown rice discharging gutter 32 communicates with the brown rice elevator 34 via a pathway 39 to divert the stone omission separation part D so that the brown discharge gutter 32 can be withdrawn directly at the outside of the machine. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a detaching section provided with a pair of detaching rolls, a wind selecting section for wind-selecting the crushed rice removed by the detaching section, and a sushi made of rice and brown rice wind-selected by the wind selecting section. The present invention relates to a rice sorting machine equipped with a rocking sorting unit for rocking and sorting rice and a stone removal sorting unit disposed in a subsequent process of the rocking sorting unit.

A detaching section provided with a pair of detaching rolls, a wind selecting section for wind-selecting the crushed rice removed by the detaching section, and swinging the crushed rice made of rice and brown rice wind-selected by the wind selecting section 2. Description of the Related Art A pallet sorter provided with a rocking sorting unit for sorting and a stone removing sorting unit disposed in a subsequent process of the rocking sorting unit is well known (see, for example, Patent Documents 1 to 3).

In a rice hull sorter equipped with such a stone removal sorting unit, the brown rice after sorting is supplied from the swinging sorting unit to the stone removal sorting unit, and from below the sorting plate of the stone removal sorting unit upwards Large and heavy pebbles are moved up the slope of the sorter and small and light brown rice is moved down the grade of the sorter and sorted by the blasting action of the sorter sent toward the screen and the swinging action of the sorter.・ Brown rice that has been separated and transferred to the lower part of the sorting board is taken out of the machine by the cereal conveying unit, and the pebbles transferred to the upper part of the sorting board are stored in a quarry container etc. It will be removed outside.

However, as described above, when all the unpolished rice after sorting from the rocking and sorting unit is supplied to the stone removing and sorting unit, a large stone having a processing capacity almost equal to the processing capacity of the detaching part and the rocking and sorting unit. It is necessary to install a punching / separating section (for example, a 6-inch type rice hull sorter has a processing capacity of 2,100-2,700 [kg / h] for brown rice, and it has a processing capacity almost equivalent to this. The sorting section is necessary), and the overall configuration of the hull sorter increases.

Japanese Patent Laid-Open No. 4-346876 JP-A-4-349978 JP-A-4-354567

In view of the above problems, it is a technical object of the present invention to provide a pallet sorter that can reduce the size of the stone extraction and selection unit and reduce the overall configuration.

In order to solve the above-described problems, the present invention provides a detaching unit having a pair of detaching rolls, a wind selecting unit for wind-selecting the crushed rice deflated by the detaching unit, and a wind selecting unit for the wind selecting unit. A swing sorting unit that swings and sorts the slid rice, and a processing capability of approximately half of the processing capacity of the detachment unit or the processing capability of the swing sorting unit, and is disposed immediately below the swing sorting unit. And a brown rice sorter that integrally disposes the unpolished rice picking section and the unpolished rice elevator for taking out the unpolished rice sorted by the rocking sorting section and the stone removing sorting section. The section is arranged so that the sorting plate made of a rough surface is tilted so as to be swingable, the tilted high side in the swinging direction of the sorting plate is the brown rice region, the tilted low side is the straw region, and the middle is the mixed rice region Provided with a rice bran partition plate and a brown rice partition plate that partition each region, while the brown rice partition plate further includes Is divided into brown rice pebble areas mixed with foreign matter such as pebbles, and the lower part of each area is provided with a rice cake discharge bowl, a mixed rice discharge bowl, a brown rice discharge bowl and a brown rice pebble discharge bowl. The brown rice pebbles discharge paddle communicates with the brown rice elevator through the stone extraction and sorting unit, while the brown rice discharge basket bypasses the stone extraction and selection unit so as to take out the brown rice directly outside the machine. Technical measures were taken to contact

According to a second aspect of the present invention, the rice grains falling from the brown rice region are discharged from the brown rice discharge basket or circulated to the mixed rice discharge basket at the brown rice discharge port of the swing sorting unit. A first switching valve is provided for switching whether or not the rice grains containing foreign matter such as pebbles falling from the brown rice pebbles area are discharged from the brown rice pebbles discharge basin, or the first The technical means of providing the 2nd switching valve which switches whether it makes it circulate to the said mixed rice discharge trough after making it flow on one switching valve was taken.

When an appropriate amount of crushed rice is supplied to the sorting plate of the oscillating sorting unit, it is segregated from the swaying side to the swaying side to brown rice, brown rice, mixed rice of rice bran and brown rice, and each layer of rice bran containing foreign matter such as pebbles. Is selected. At this time, the brown rice mixed with foreign matter such as pebbles discharged from the brown rice pebbles discharge trough is supplied to a small stone extraction and sorting section in the subsequent process, separated and sorted into pebbles and brown rice, and then the brown rice is lifted Is taken out through the machine. On the other hand, the unpolished rice discharged from the unpolished rice cake is taken out of the machine directly from the unpolished elevator by bypassing the unpolished rice sorting unit. It can be employed, and the overall configuration of the hull sorter can be reduced.

In addition, the brown rice discharge port is provided with a first switching valve, and the brown rice pebble discharge port is provided with a second switching valve. When the discharge is closed and guided to the mixed rice discharge paddle and circulated, and the sorting is stable, the operation of opening the brown rice discharge port and the brown rice pebbles discharge port can be performed for each region in the rocking and sorting unit. Rice grains and the like can be discharged from each discharge basket with improved sorting accuracy.

The present inventors have found that pebbles having a particle size of 3 mm or less that are mixed and processed in brown rice are segregated and concentrated to about half the width of the brown rice region in the rocking sorter (× in FIG. 3). It is possible to adopt a small stone removal sorting section with a small processing capacity if only the brown rice in this area is extracted and passed through the stone removal sorting section. Therefore, I thought that the overall configuration of the hull sorter could be reduced.

FIG. 1 is a schematic front view of a hull sorter according to an embodiment of the present invention, FIG. 2 is a schematic plan view of the hull sorter, and FIG. 3 shows a swing sorting unit of the hull sorter. FIG.

The rice hull sorting machine 1 according to the present embodiment will be described in detail with reference to FIGS. 1 to 3. The hull hull sorting machine 1 includes a removing unit A including a pair of removing rolls, and the removing unit. A wind selection section B for wind-selecting the crushed rice removed in A, and a rice screen (mixed of foreign substances such as rice bran, brown rice, and pebbles) that have been wind-selected by the wind selection section B and from which rice husks have been removed are shaken. A swing sorting unit C that performs dynamic sorting, and a post-process of the swing sorting unit C, and a processing capability (for example, approximately half of the processing capability of the detachment unit A or the processing capability of the swing sorting unit C (for example, When the processing capacity of the detachment part A is 2,100-2,700 [kg / h] for brown rice, a small stone removal sorting part D having a processing capacity of 1,050-1,350 [kg / h] It has become the composition.

The evacuation part A includes a supply hopper 2 that supplies raw material slag, a pair of detachment rolls 3 and 3 disposed below the supply hopper 2, an opening and closing shutter 4 provided in a supply passage leading to the detachment rolls 3 and 3 A control valve 5 and a feed roll 6 are provided.

The wind sorting B includes a wind sorting chamber 8 formed by a plurality of shelves 7, a suction dust exhaust fan 9 that communicates with the wind sorting chamber 8 and discharges rice husk and the like to the outside of the machine, and a lower portion of the wind sorting chamber 8 Crushed rice screw 10 for transferring crushed rice, conveyor case 11 for the crushed rice screw 10, immature rice screw 12 for transferring immature rice laid laterally in the wind sorting chamber 8, A second port 13 for discharging immature rice or the like provided at the transfer terminal end of the immature rice screw is provided.

Further, a bucket elevator 14 that lifts the slidable rice is erected between the wind selector B and the swing selector C, and the supply rod 14a below the bucket elevator 14 is connected to the slidable rice screw 10. A conveyor case 11 on the transfer end side is connected, and a suspension tank 15 that can be moved up and down by a spring (not shown) is suspended from a discharge portion 14 a above the bucket elevator 14. If the suspension tank 15 is configured to be interlocked with the flow rate control valve 5, a flow rate is prevented in order to prevent the suspension tank 15 from overflowing when sliding rice gradually accumulates in the suspension tank 15 during the hulling operation. The control valve 5 can be controlled to rotate in the closing direction so as to limit the supply amount of the raw material koji to the detaching rolls 3 and 3. Reference numeral 16 denotes a suspension tank discharge rod protruding from the lower end of the suspension tank 15.

Further, the swing sorting portion C will be described. For example, sorting plates 17 formed of rough surfaces having a large number of uneven portions are stacked in a multistage manner in the machine frame 18, and this is made into a swing mechanism (not shown). ) And the slanted rice supplied to the rocking sorter C is different from each other in terms of friction coefficient and specific gravity, grain size, shape, etc. And segregated into a mixture of brown rice with a mixture of brown rice and foreign matter such as pebbles. The swing sorting portion C has a high side (the right side of the machine frame 18 in FIG. 1) side of the sorting plate 17 as a swing side, and a low level (the left side of the machine frame 18 in FIG. 1) side of the sort plate 17 as a swing side. None, the upper side of the sorting plate 17 inclined (the upper side of the square indicated by reference numeral 18 in FIG. 2) is the supply unit 19, and the lower side of the sorting plate 17 (the lower side of the square indicated by reference numeral 18 in FIG. 2) is the discharge unit. Twenty. The sliding rice supply unit 19 is attached with a leveler 21 that is swung integrally with the sorting plate 17... To the machine frame 18, while the discharge unit 20 is moved from the swaying side to the swaying side. In the direction of heading, the rice bran partition plate 22, the brown rice partition plate 23, and the stone partition plate 24 are sequentially provided and divided into four to form a rice bran region, a brown rice region, a mixed rice region, and a brown rice pebble region. Under each area, a rice cake discharge port 25, a mixed rice discharge port 26, a brown rice discharge port 27, and a brown rice pebble discharge port 28 are formed, respectively, and a rice cake discharge rice pad 29, a mixed rice discharge rice cake 31, a brown rice discharge rice cake 32. It is set as the structure which provides the brown rice pebble discharge pit 35. Note that the straw partition plate 22 and the brown rice partition plate 23 are movable in the swinging direction, but the stone partition plate 24 is fixed.

The rice cake discharge basket 29 communicates with the return rice straw 30, the mixed rice discharge basket 31 communicates with the sliding rice screw 10 at the lower part of the wind selection section 8, and the brown rice pebble discharge basket 35 is a deburring sorter. The brown rice discharge basket 32 is configured to communicate with the brown rice elevator 34 by bypassing the stone removal sorting section D while communicating with the brown rice elevator 34 via D.

That is, the stone removal sorting section D includes a stone removal sorting plate 36 in which a large number of blow holes are formed, a fine product discharge bowl 37 protruding downward from the stone removal sorting plate 36, and a stone removal sorting plate 36 above the inclination. The structure includes a protruding foreign matter discharge rod 38, a swinging mechanism (not shown) that swings the stone removal sorting plate 36, and a blast fan 40 provided below the stone removal sorting plate 36. The end of the brown rice pebble discharge basket 35 is connected to a stone extraction sorter 36 of the stone removal sorter D, and the refined discharge basket 37 is connected to a brown rice elevator 34 via a brown rice transfer screw 33. On the other hand, the end of the brown rice discharge basket 32 is connected to the brown rice elevator 34 via a passage 39 and a brown rice transfer screw 33 that bypass the stone removal sorting section D. The supply side of the brown rice transfer screw 33 is formed in the collecting hopper 41. When the refined product discharge basket 37 and the passage 39 are connected to the collecting hopper 40, the brown rice can be collected and discharged outside the apparatus. Reference numeral 42 denotes a stone storage container installed below the foreign material discharge rod 38 of the stone removal sorting section D.

The brown rice discharge port 27 of the swing sorting unit C is provided with a first switching valve 43 for switching whether the rice grains falling from the brown rice region are discharged from the brown rice discharge basket 32 or circulated to the mixed rice discharge basket 31. At the same time, in the brown rice pebbles discharge port 28, a mixture of foreign matter such as pebbles falling from the brown rice pebbles area and the brown rice is discharged from the brown rice pebbles discharge rod 35 or slid on the first switching valve 36. Thereafter, a second switching valve 44 for switching whether to circulate to the mixed rice discharge basket 31 is provided.

Hereinafter, the operation of the above configuration will be described with reference to FIGS. Prior to the hulling operation, the worker needs to remove coarse foreign matters such as sawdust, wood chips, large stone chips, etc. from the raw material basket in advance, for example, it can be removed by visual inspection or comprises a rotatable coarse wire mesh. It is desirable to remove coarse foreign matters having a particle size larger than 3 mm by supplying them to a coarse sorter.

Next, the roughly selected raw material koji is put into the supply hopper 2 and the hulling operation is started. At this time, the brown rice outlet 27 and the brown rice pebble outlet 28 are closed so that the first switching valve 43 and the second switching valve 44 of the swing sorting unit C are circulated to the mixed rice discharge basket 31. . Then, the rice cake in the supply hopper 2 is supplied to the pair of detaching rolls 3 and 3 and thawing is performed, and the crushed rice is made up of brown rice, rice cake and rice husk that cannot be removed.

The rice is then supplied to the wind selection section B, and the air in the wind selection chamber 8 is selected by the suction air from the suction dust exhaust fan 9, and the rice husk having a low specific gravity is discharged to the outside by the suction dust exhaust fan 9. On the other hand, the brown rice and rice bran heavier than the rice husk flow down downward and are stored in the suspension tank 15 via the sliding rice screw 10 and the bucket elevator 14. On the other hand, immature grains having a low specific gravity slide down to the immature rice screw 12 and are taken out from the No. 2 port 13 to the outside of the machine. When a certain level of rice is collected in the suspension tank 15, the discharge port provided in the suspension tank discharge trough 16 opens at a certain degree of opening, and the rice is separated from each of the swing sorting sections C via the equalizer 21. It will be supplied to the sorting plate 17.

When an appropriate amount of crushed rice is supplied to each sorting plate 17 of the swing sorting unit C, a swinging motion is imparted as shown by symbol W in FIG. It is segregated into the mixture of brown rice, brown rice, mixed rice of rice bran and brown rice, and rice bran, and discharged to the brown rice pebbles outlet 28, brown rice outlet 27, mixed rice outlet 25 and rice bran outlet 25, respectively. The rice cake is supplied to the removal rolls 3 and 3 through the rice cake discharge rice cake 29 and the return rice cake thrower 30, and mixed again, while the mixed rice is hung by the rice screw 10 and the bucket elevator 14 together with the rice. To reflux.

By the way, since the sorting is unstable immediately after the start of the hulling, the brown rice discharge port 27 is closed by the first switching valve 43 and the brown rice pebble discharge port 28 is closed by the second switching valve 44. Immediately after the brown rice is led to the mixed rice discharge basket 31 and returned to the suspension tank 15, similarly, a mixture of foreign matter such as pebbles and brown rice is also led to the mixed rice discharge basket 31 and returned to the suspension tank 15. Become.

Since the selection becomes stable after a lapse of time since the start of the rice hull, the first switching valve 43 and the second switching valve 44 are opened so that the brown rice is discharged from the brown rice discharge basket 32, and the brown rice pebbles The rice grains containing foreign matter such as pebbles are discharged from the discharge basket 35.

When the unpolished rice mixed with foreign matter such as pebbles flowing down from the unpolished pebbles discharge bowl 35 is supplied onto the deburring and sorting plate 36 of the deburring and sorting section D, the rocking motion of the deburring and sorting plate 36 and the fan for blast With the blast of the sorting wind from 40, pebbles with large specific gravity are separated and sorted upward and the brown rice with small specific gravity is separated and sorted downward. The brown rice thus selected and separated is cerealed by the refined rice cake 37, the brown rice transfer screw 33 and the brown rice elevator 34 and taken out of the machine. Be contained.

On the other hand, the brown rice discharged from the brown rice discharge basket 32 is bypassed by the passage 39 without being supplied to the stone removal sorting section D, cerealed by the brown rice transfer screw 33 and the brown rice elevator 34, and taken out of the machine. To do. As a result, as disclosed in the prior art, instead of supplying all the unpolished rice after rocking and sorting to the stone removal sorting section, it is possible to directly take out the unpolished rice area where there is little mixing of pebbles and the like outside the machine. Therefore, it is not necessary to dispose a large stone extraction / separation unit that is almost equivalent to the processing capacity of the removal unit or the rocking / separation unit, and the overall configuration of the hulling sorter can be reduced in size.

It is a schematic front view of the hull sorter of the present invention. It is a schematic plan view of the same hulling sorter. It is the schematic perspective view which fractured | ruptured partially the rocking | fluctuation sorting part of the same hulling machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rice hull sorter 2 Supply hopper 3 Release roll 4 Opening / closing shutter 5 Flow control valve 6 Feeding roll 7 Shelf plate 8 Wind selection chamber 9 Suction dust fan 10 Sliding rice screw 11 Conveyor case 12 Immature rice screw 13 2nd exit 14 Bucket elevator 15 Suspension tank 16 Suspension tank discharge trough 17 Sorting plate 18 Machine frame 19 Supply unit 20 Discharge unit 21 Divider 22 Grain partition plate 23 Brown rice partition plate 24 Stone partition plate 25 Straw discharge port 26 Mixed rice discharge port 27 Unpolished rice discharge Exit 28 Brown rice pebbles outlet 29 Grain discharge basin 30 Return rice straw 31 Mixed rice discharge basin 32 Brown rice discharge basin 33 Brown rice transfer screw 34 Brown rice elevator 35 Brown rice pebbles discharge basin 36 Stone removal sorter 37 Refined waste basin 38 Foreign matter exhaust basin 39 Passage 40 Fountain fan 41 Collecting hopper 42 Stone storage container 43 First switching valve 44 Second switching valve

Claims (2)

A detaching section having a pair of detaching rolls, a wind selecting section for wind-selecting the crushed rice removed by the detaching section, and a rocker for swinging and selecting the crushed rice selected by the wind selecting section. A dynamic sorting unit, a processing capability of the detachment unit or a processing capability of approximately half of the processing capability of the swing sorting unit, and a stone removal sorting unit disposed immediately below the swing sorting unit; A rice hull sorter in which a brown rice lifting machine for taking out the brown rice sorted out by the dynamic sorting unit and the stone removal sorting unit is integrally disposed,
The swing sorting unit is arranged so that a sorting plate made of a rough surface is tilted so as to be swingable, and the higher tilting side in the swinging direction of the sorting plate is the brown rice region, and the lower tilting side is the rice bran region. Are provided in the mixed rice region, and provided with a straw partition plate and a brown rice partition plate for partitioning each region, and on the further inclined high side of the brown rice partition plate, the brown rice pebble region in which foreign matter such as pebbles is mixed A partition plate is provided to divide into two areas, and a lower part of each region is provided with a straw discharge pad, a mixed rice discharge pad, a brown rice discharge pad and a brown rice pebble discharge pad,
The brown rice pebbles discharge paddle communicates with the brown rice elevator through the stone extraction and sorting unit, while the brown rice discharge bowl bypasses the stone extraction unit and directly contacts the brown rice elevator to take out the brown rice directly outside the machine. A hull sorter characterized by that. At the brown rice discharge port of the swing sorting unit, a first switching valve is provided for switching whether the rice grains falling from the brown rice region are discharged from the brown rice discharge paddle or circulated to the mixed rice discharge paddle, In the brown rice pebbles outlet, the rice grains mixed with foreign matters such as pebbles falling from the brown rice pebbles area are discharged from the brown rice pebbles discharge trough, or after sliding on the first switching valve, The rice hull sorter according to claim 1, further comprising a second switching valve for switching whether to circulate to the mixed rice discharge basket.

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