JP2000354775A - Hulling and sorting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hulling and sorting machine in which constitution such as duct arrangement is simplified without deteriorating an atmosphere around a hulling machine. SOLUTION: A pneumatic classifying part 3 is provided with a cyclone separator 15 for subjecting a wind pressure flow by an impact type gluten removing part 2 to solid-gas separation from hulled rice, a pneumatic classifying route 16 for removing rice hulls and impurities from the hulled rice that has undergone the solid-liquid separation, a suction device 17 installed on the leeward side of the pneumatic classifying route 16, and a wind path 18 for leading an air current separated from the hulled rice by the cyclone separator 15 to the windward side of the pneumatic classifying route 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hulling sorter provided with an impact-type hulling unit for giving high-speed motion to rice by rotation of a rotary blade and colliding the high-speed motion with a casing of the rotary blade to release the rice. It is about.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 51-26351 discloses a method and an apparatus for removing paddy by an impact method. This will be described with reference to FIGS. 4 and 5. The paddy supply tank 101 is arranged adjacent to the outer surface of a circular removal chamber 102 in which a removal rotating body (not shown) is housed in a circular case. A cyclone separator 126 is connected to the outer periphery of the circular evacuation chamber 102 via a transfer pipe 125, and a sieve plate 132 is provided immediately below the cyclone separator 126, and the sieve plate 132 flows down on the sieve plate 132. An air blower 135 for carefully selecting the air blown brown rice, scrap rice, rice hulls, and the like from the mixture to be removed is provided.

[0003] As a result, the demixing mixture sorting mechanism can quickly perform the air pressure separation using the cyclone 126 and can filter the demixing mixture falling under its own weight into the sieve plate 132.
Can be forcibly performed by the action of the suction fan 135 and the function of the removal of brown rice. By combining them, it is possible to greatly improve the processing capacity from the removal of paddy to the selection of brown rice, thereby improving the processing capacity.

[0004]

However, in the conventional impact type huller described above, the use of the cyclone 126 allows the wind pressure flow to be quickly separated from the deaeration mixture, and the subsequent deaeration mixture is removed. The rice husks and other mixtures are sucked and removed from the brown rice by the suction fan 135 by flowing down on the sieve plate 132. However, since the air discharge port 127 formed in the upper part of the cyclone 126 is open to the outside air, it is crushed. There is a possibility (risk) that the extracted rice husks, pity and other contaminants, and dust are mixed with the wind pressure flow and discharged out of the machine.

[0005] As a result, the atmosphere around the impact-type huller is polluted, which is uncomfortable for the operator and causes a deterioration in work efficiency. To prevent this, the air outlet 12
Although it is conceivable to attach a dust duct to the intake fan 135, it is necessary to provide two ducts for one huller, considering the attachment of the duct to the intake fan 135, and the arrangement of the duct becomes complicated. There were disadvantages.

In view of the above problems, the present invention does not deteriorate the atmosphere around the hulling machine even when a cyclone separation device is connected and arranged via a transfer pipe to the outer periphery of the circular escape chamber. A technical object is to provide a hulling sorter having a simple configuration such as arrangement of a duct.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an impact removal unit for removing paddy by rotation of a rotary blade provided in a circular extraction chamber, and an impact removal unit. A wind-selecting unit for supplying the removed crushed rice together with the wind pressure flow of the crushing unit and wind-selecting; and a sorting unit for selecting the crushed rice after the wind selection into paddy and brown rice. The selection unit is a cyclone separator for solid-gas separation of the wind pressure flow from the crushed rice, a wind selection route for removing rice hulls and impurities from the crushed rice, and a leeward side of the wind selection route. And a wind path for guiding an airflow separated from the smashed rice by the cyclone separation device to the windward side of the wind selection path.

[0008] Thus, the crushed rice removed by the impact type removal unit is supplied to the cyclone separator with the wind pressure flow, and the crushed rice and the wind pressure flow are almost completely separated.
Then, the airflow from the cyclone separation device is guided to the windward side of the wind selection path by the air path, and is suctioned by the suction device installed in the wind selection path, so that the crushed rice hulls and other foreign substances and dust are directly removed by the air flow. It will not be discharged outside, but will be discharged from the suction device via the air selection path.

On the other hand, the smashed rice falling from the cyclone separation apparatus is supplied to a wind selection path, and unnecessary substances such as rice husks and impurities are removed by suction air. The brown rice and the paddy are supplied and are subjected to grain sorting.

[0010] The wind selection section is arranged substantially inclining the wind selection path, and forming a lower slope side of the wind selection path on the windward side and an upper slope side of the wind selection path on the leeward side. Since the cyclone separating device is connected to the leeward side and the suction device is connected to the leeward side, there is a space for providing a vertically long cyclone separating device, so that the internal structure of the wind selecting section can be made compact.

Further, the sorting section mounts a circular sorting plate on an eccentric shaft that is appropriately eccentric from the axis of the rotatable vertical axis, and eccentrically rotates the circular sorting plate to remove the crushed rice from the rice. Since it is formed in the rotary swing sorting section for sorting brown rice, it is possible to use a sorter that does not discharge mixed rice.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway front view of the hulling sorter of the present invention, and FIG. 2 is a left side view of the same. 1 and 2
The hulling sorter of the present invention will be described with reference to FIG. The rice hulling sorter 1 of the present invention sorts the impact-type removal unit 2, the wind selection unit 3 that wind-selects the removed rice, and the rice after the wind selection into rice and brown rice. The main part is composed of the sorting part 4.

The impact type escape unit 2 includes a circular escape chamber 5, an escape rotary unit 6 rotatably disposed in the escape chamber 5,
The rotator 6 includes a paddy rice supply hopper 7 which is communicated with an opening provided at the center of the rotating body 6 and is disposed on a side surface of the demolding chamber 5. Reference numeral 8 denotes a motor provided to rotationally drive the rotating body 6, which is connected via a belt 12 between the rotating shaft 9 of the rotating body 6 and the motor pulley 10. Reference numeral 11 denotes a tension pulley, and the tension of the belt 12 is appropriately adjusted. Reference numeral 13 denotes a bellows-shaped reflux pipe, which is configured such that the non-dewatered particles after being separated by the separation part 4 are supplied to the extraction chamber 5 and are again extracted.

The outer periphery of the vacuum chamber 5 is connected to the wind selection unit 3 through a fry pipe 14. The wind selection unit 3 includes a cyclone separation device 15 that separates air pressure flow from the crushed rice by the impact type degassing unit 2 into solid and gas, a wind selection path 16 that removes rice husks and impurities from the crushed rice that has been solid and gas separated, And a suction device 17 installed on the leeward side of the wind selection path 16.

The frying tube 14 communicated from the evacuating chamber 5 is connected to the cyclone separator 15 from the tangential direction. And an airflow outlet 1 from which the airflow separated from the smashed rice is discharged.
The air path 18 for guiding the airflow to the windward side of the wind selection path 16 is connected to 5A. An outside air inlet 19 for taking in outside air into the wind selection path 16 is provided below the air path 18.

Sliding rice falling port 1 of cyclone separator 15
Below 5B, the falling rice is guided by the downflow guide plate 20 to the wind selection path 16. In the wind selection path 16, two pieces of running board 21 are provided, and the wind selection path 16 is divided into two. Then, a sloping rice discharge gutter 22 for discharging the smashed rice on the windward and lower side of the wind selection path 16 is provided. A chaff discharge port 24 is provided on the leeward side of the route. In addition, the wind selection path 16 is disposed substantially inclining, the lower side of the wind selection path 16 is formed on the windward side, and the upper side of the wind selection path 16 is formed on the leeward side.
When the suction device 17 is connected to the leeward side, a space for providing the vertically long cyclone separation device is created, so that the internal structure of the wind selection unit 3 can be made compact.

The above-mentioned crushed rice discharge gutter 22 is connected to a crushing machine 48 for crushing the blasted rice selected in the wind.
Is connected to the storage tank 25 for storing the smashed rice. Then, from the storage tank 25, it is appropriately supplied to a sorting plate of the sorting unit 4 described later. Code 26
Is a motor for driving the graining machine 48, and is connected via a belt 29 between the pulley 27 of the motor 26 and the driving pulley 28 of the graining machine 48.

Sorting unit 4 for sorting the polished rice into paddy and brown rice
May be used to sort rice, brown rice, and mixed rice with a rocking, rotating, and all-stone sorter. In the case of a machine, it is preferable to apply a sorter that does not discharge mixed rice. In the embodiment of the present invention, a rotary swinging sorter that does not discharge mixed rice is used.

The rotary swing sorter 4 has a vertical shaft 30 rotatable in a machine frame 29, and an eccentric portion 31 which is appropriately eccentric from the axis of the vertical shaft 30 is attached. A selection plate 32 having a circular view is attached. In the present embodiment, a three-stage configuration in which three eccentric portions 31 are attached to one vertical shaft 30 and circular sorting plates 32A, 32B, and 32C are attached to the eccentric portions 31, respectively. And the vertical axis 3
By rotating 0, circular sorting plates 32A, 32B,
32C rotates eccentrically and sorts the smashed rice into paddy and brown rice. Reference numeral 33 denotes a geared motor, which is connected via a belt 36 between a pulley 34 of the motor 33 and a pulley 35 of the vertical shaft 30.

Each of the circular sorting plates 32A, 32B, 32C is provided with crushed rice supply ports 37A, 37B, 37C on the upper surface. Then, the slivered rice stored by a supply valve (not shown) provided below the storage tank 25 is divided into three parts, and the separated slivered rice is divided into three by a pipe or the like (not shown). It is supplied to the supply port 37. Also, on the outer peripheral edge of each circular sorting plate 32A, 32B, 32C, a brown rice discharge gutter 38 is provided.
A, 38B, 38C are provided, and each brown rice discharge gutter 38A,
Below the 38B and 38C, there is provided a screw conveyor 39 for collecting the sorted brown rice in one place, and a collecting gutter 40 surrounding the screw conveyor 39. And one end of the screw conveyor 39 is a brown rice mill 4
The discharge port 42 of the brown rice milling machine 41 is connected to an aspirator 43 for removing bran powder and the like. Code 4
Reference numeral 4 denotes a suction port, which is connected to the suction device 17 via a bellows tube (not shown) or the like.

Reference numerals 45A, 45B and 45C denote each sorter plate 3.
2A, 32B, and 32C are paddy discharge gutters provided below the paddy discharge gutters 45A, 45B, and 45C. Is communicated with a reflux pipe 13 provided in the impact type escape part 2. Reference numeral 46 denotes a caster that enables the hulling sorter to move, and reference numeral 47 denotes a rotary lever that adjusts the caster so that it can move in and out.

Next, the operation of the above configuration will be described.
The paddy rice fed from the paddy input hopper 7 is supplied to the center of the rotary unit 6 that rotates at high speed in the rotary chamber 5,
Escape is performed by the impact force of the escape rotating body 6, the impact force colliding with the inner wall of the escape chamber 5, and the strong wind pressure flow (the relationship between the rotation speed of the escape rotating body 6 and the air volume is shown in FIG. 3. The processing capacity was about 900 kg / hour at a rotation speed of 1700 rpm.)

The crushed rice stripped by the impact stripping unit 2 is supplied to the cyclone separator 15 through the fluffing pipe 14 together with the wind pressure flow. In the cyclone separation device 15, the wind pressure flow is solid-gas separated from the smashed rice, and the air flow is separated from the air flow discharge port 15A
And is guided to the air passage 18. And wind path 1
Since the airflow in 8 is sucked by the suction device 17 from the windward side of the wind selection path 16 through the wind selection path 16, impurities such as crushed rice hulls and dust are not directly discharged outside the machine. Is discharged from the suction device 17. At this time, the air passage 18 has an outside air inlet 19 for taking in outside air.
The outside air can be taken into the wind selection path 16 by the suction force of the suction device 17.

On the other hand, the smashed rice falling from the cyclone separator 15 is supplied from the smashed rice falling port 15B to the air selection path 16 via the downflow guide plate 20, and the rice hulls and impurities are discharged from the rice husk discharge port 24 to the outside of the machine. And the remaining rubbed rice falls to the rubbed rice discharge gutter 22, and immature grains fall to the second product take-out gutter 23. The second product take-out gutter 23 is communicated with the paddy supply hopper 7, so that the fallen immature grains and the like are recovered.

The crushed rice that has fallen into the crushed rice discharge gutter 22 is raised to a storage tank 25 by a raising machine 49, and is supplied from the storage tank to the sorting unit 4 as needed via a supply valve (not shown). Is done. Since the impact type removal unit 2 has a high removal rate (for example, 95 to 97%), the sorting unit 4 is configured to eccentrically rotate the circular selection plates 32A, 32B, and 32C to remove the crushed rice from the rice. It is preferable to use a rotary swing sorter of a type that sorts rice and brown rice and does not discharge mixed rice.

The crushed rice is supplied to the crushed rice supply port 37 by an appropriate means.
A, 37B and 37C. At this time, the vertical axis 3
0, the sorting plate 3 fixed to the eccentric portions 31.
2A, 32B and 32C are rotated and oscillated. Sorting plate 32
A, 32B, and 32C are supplied to the sorting plate 32
The acceleration becomes larger near the outer periphery of
2 is provided with a gradient, so that brown rice having a small particle size and a large specific gravity is transported toward the outer periphery, and paddy having a large particle size and a small specific gravity slides down the sorting plate 32 and is transported toward the center. .

Brown rice is discharged from a brown rice discharge gutter 38, collected by a brown conveyor 41 by a screw conveyor 39, and discharged to the outside via an aspirator 43.

The paddy collected near the center of the sorting plate 32 is discharged from a paddy discharge gutter 45 via a transport path (not shown).
Collected in a grain collecting gutter (not shown). The paddy collected in the grain collecting gutter is conveyed to the return pipe 13 and is recovered again by the impact type recovery unit 2.

[0030]

As described above, according to the present invention, an impact-type detachment unit for detaching paddy by rotating a rotary wing provided in a circular extraction chamber, and the impact-type detachment unit removes the paddy. An air selection unit that supplies the crushed rice together with the wind pressure flow of the removal unit and wind-selects, and a selection unit that sorts the crushed rice after the wind selection into paddy and brown rice, wherein the wind selection unit includes: A cyclone separator for solid-gas separation of the wind pressure flow from the crushed rice, a wind selection path for removing rice husks and impurities from the solid-gas separated crushed rice, and a suction device installed on the leeward side of the wind selection path. And an air flow path for guiding the air flow separated from the smashed rice by the cyclone separation device to the windward side of the wind selection path, so that the air flow from the cyclone separation device is
It is guided to the windward side of the wind selection path by the air path, and is sucked by the suction device installed in the wind selection path, so that foreign matters such as crushed rice hulls and dust are not directly discharged outside the machine, and the wind It is discharged from the suction device via the selection route, and the atmosphere around the huller does not deteriorate.

The wind selection section is arranged with the wind selection path substantially inclined, and the lower part of the wind selection path is formed on the windward side, and the upper part of the wind selection path is formed on the leeward side. Since the cyclone separation device is connected to the leeward side and the suction device is connected to the leeward side, a space is provided for providing the vertically long cyclone separation device, so that the internal structure of the wind selection unit can be made compact.

Further, the sorting section mounts a circular sorting plate on an eccentric shaft appropriately eccentric from the axis of the rotatable vertical axis, and eccentrically rotates the circular sorting plate to remove the crushed rice from the rice. Since it is formed in the rotary swing sorting section for sorting brown rice, it is possible to use a sorter that does not discharge mixed rice.

[Brief description of the drawings]

FIG. 1 is a partially broken front view of a hulling sorter of the present invention.

FIG. 2 is a left side view of the same.

FIG. 3 is a graph showing a relationship between a rotation speed of a rotating body and a flow rate.

FIG. 4 is a perspective view showing a conventional detaching device.

FIG. 5 is a longitudinal sectional view showing a conventional screw removal device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 hulling sorter 2 impact-type desorbing unit 3 wind-selecting unit 4 sorting unit 5 de-wetting chamber 6 de-rotating body 7 rice-feeding hopper 8 motor 9 rotating shaft 10 motor pulley 11 tension pulley 12 belt 13 reflux pipe 14 lifting pipe Reference Signs List 15 cyclone separation device 16 wind selection route 17 suction device 18 air passage 19 air intake 20 flow-down guide plate 21 flow grain plate 22 sloping rice discharge gutter 23 grain raising machine 24 discharge port 25 storage tank 26 motor 27 motor pulley 28 drive pulley 29 Machine frame 30 Vertical axis 31 Eccentric part 32 Sorting plate 33 Motor with gear 34 Pulley 35 Pulley 36 Belt 37 Sliding rice supply port 38 Brown rice discharge gutter 39 Screw conveyor 40 Grain collecting gutter 41 Brown rice milling machine 42 Discharge port 43 Aspirator 44 Suction port 45 Paddy discharge gutter 46 Caster 47 Rotary lever 48 Frying machine 49 Discharge mouth

Claims (3)

[Claims] 1. An impact-type removal unit for removing paddy by a rotary wing provided in a circular extraction chamber, and crushed rice removed by the impact-type removal unit together with a wind pressure flow of the removal unit. A wind selection unit that supplies and wind-selects, and a sorting unit that sorts the crushed rice after the wind selection into paddy and brown rice is provided, and the wind selection unit solid-gas separates the wind pressure flow from the crushed rice. Cyclone separator, wind-selection path for removing rice husks and impurities from solid-gas-separated crushed rice, suction device installed on the leeward side of the wind-selection path, and separated from crushed rice by the cyclone separator And a wind path for guiding an airflow to the windward side of the wind selection path. 2. The wind selection unit is disposed so that the wind selection path is substantially inclined, and the lower part of the wind selection path is formed on the windward side, and the upper part of the wind selection path is formed on the leeward side. The hulling sorter according to claim 1, wherein the cyclone separation device is connected to the leeward side, and the suction device is connected to the leeward side. 3. The sorting section mounts a circular sorting plate on an eccentric shaft appropriately eccentric from an axis of a rotatable vertical axis,
3. A rotary oscillating sorter for eccentrically rotating the circular sorter plate to sort crushed rice into rice and brown rice.
Hulling sorter described in.