JP2654083B2 - Sorting machine - Google Patents

Description

The present invention relates to a sorter, particularly to a grain sorter used for a rice center or the like, and more particularly, to a closed type which does not emit wind accompanying the wind force sorting to the outside. It relates to a type sorter.

(B) Conventional technology In general, a sorter of this type, a wind sorter that sorts light contaminants such as waste waste by wind force, and a shaking device that vibrates a screen that is installed at an angle and sorts it according to the grain shape. There is a moving sorter.

Combining these wind sorters and rocking sorters, the wind sorter separates light contaminants such as waste, and the rocking sorter separates irregular shaped contaminants such as cut ears, pebbles, and trash. Sorting machines with improved sorting accuracy have been devised.

(C) Problems to be Solved by the Invention However, in the above-mentioned sorting machine, although the sorting accuracy is improved by the wind sorting action and the swing sorting action, the wind sorting portion sucks air from outside the machine, and the The air that has been selected by the wind is discharged out of the machine together with light contaminants such as scraps, and the room in which the sorting machine is installed has an extremely bad atmosphere in which the scraps and the like float.

For this reason, recently, scattering of dust has become a problem in terms of worker hygiene, safety, and environmental maintenance, but the above sorter cannot solve the problem. In particular, in a grain dryer that is used continuously with a sorter, dust removal measures such as suctioning extremely scattered portions of the dust and discharging the dust to the outside are taken, and sorting is performed alongside the grain dryer. If the machine is installed, the dust removal measures of the dryer are neglected, and if the sorter is installed in a separate room, the work efficiency of a series of grain processing is reduced.

Therefore, an object of the present invention is to provide a sorter that is a high-precision sorter that combines a wind sorter and an oscillating sorter, but has a closed-type wind sorter, thereby solving the above-described problems. It is.

(D) Means for Solving the Problems The present invention has been made in view of the above circumstances, and, for example, referring to FIG. 1 and showing a raw material supply unit (1) and a wind separation unit (2) And a swing sorting section (3) having swing screens (31) and (32) arranged at an angle, wherein the wind sorting section (2) and the raw material supply are provided. A rotary valve (5) (6) for supplying and discharging the raw material and maintaining the airtightness of the wind separation unit between the unit (1) and the swinging separation unit (3); A long fan extending in the width direction of the wind separation unit (2) between the wind selection room and the cyclone room while having a wind selection room (22) and a cyclone room (23) in the separation unit (2). (21) is disposed, and the raw material is dropped from the rotary valve (5) on the raw material supply section side into the wind selection chamber, and The selected and air-selected light impurities are separated in the cyclone chamber (23), and only the air is circulated between the wind selection chamber (22) and the cyclone chamber (23) by the fan. A sorting machine configured to guide the raw material that has fallen in the air path from the rotary valve (6) on the raw material discharge side to the swing sorting part (3), and further sort the material in the swing sorting part. It is in.

Also preferably, as shown in FIG. 4, for example, the swing sorting section (3) includes two swing screens (31) and (32) having substantially the same weight and substantially the same inclination angle. , 180
A driving unit (33) having two eccentric parts (33a) and (33b) separated by two degrees, and the two eccentric parts (33a) and (33b) are respectively provided with two oscillating screens (31). ), (32) so that the two oscillating screens are oscillated 180 degrees out of phase.

(E) Operation Based on the above configuration, the raw material, for example, the grains from the raw material supply unit (1) is continuously dropped by a fixed amount by the rotation of the rotary valve (5) into the wind separation unit (2). In the wind separation unit (2), a wind selection room (22) based on the rotation of the fan 21
Is sent to the rotary valve (5).
The heavy raw materials such as grains continue to fall against the wind by hitting the raw materials falling from the air, but the light contaminants such as the wastes are blown up with the wind and carried to the cyclone chamber 23. Then, the light contaminants are separated in the cyclone chamber 23, and only the air is circulated again by the fan 21. Further, the raw material from which the light contaminants have been separated is dropped from the rotary valve (6) to the oscillating sorter (3), and the oscillating screen (31),
The sieve is separated in (32), and irregular foreign substances such as cut ears and pebbles are separated.

At this time, the two oscillating screens (31) and (32)
Since the screens are rocked 180 degrees out of phase with each other, the inertial forces of the two screens are canceled each other, and the vibration is prevented from being generated as a whole of the rocking selector (3).

(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the grain sorter 10 has a machine frame 11 installed on a concrete floor or the like, and the swing sorter 3 is housed in the frame 11. I have. An intermediate housing 12 is fixed to an upper portion of the frame 11, and the wind separator 2 and the like are housed in the housing 12. Further, an upper casing 13 is fixed to an upper portion of the housing 12, and a hopper 15 constituting the raw material supply unit 1 is accommodated in the casing 13.

A rotary valve 16 for supplying raw material is provided below the hopper 15, and the rotation of the valve 16 causes the grains M in the hopper 15 to be supplied to the gutter 17 in a fixed amount. Also,
A scalper reel 19 is provided in the intermediate housing 12 downstream of the gutter 17, and the scalper reel 19 is formed of a screen of a predetermined mesh which is driven to rotate. A scraper 18 is provided near a predetermined position of the reel 19, and a screw conveyor 20 for discharging large impurities that extends in the width direction of the housing 12 is disposed below the scraper 18.

Further, below the scalper reel 19, a rotary valve 5 for supplying a raw material for a wind separation unit extending in the width direction of the housing 12.
Are arranged. As shown in detail in FIG. 3, the valve 5 has a plurality of radially extending blades 5a, and the blades 5a are rotatably driven and have a cylindrical cover with a notched end. 5b, the grain M can be supplied in a fixed amount while maintaining the airtightness of the wind separation unit 2. The valve 5
A rotary valve 6 for discharging the raw material is disposed at the bottom of the wind separation unit case 25 below the lower part of the wind separation unit case 25. Similarly to the valve 5, the rotary valve 6 also has a plurality of blades 6a that are driven to rotate and slidably contact the cover 6b. It is possible to discharge a fixed amount of grains while maintaining the airtightness of the wind separation unit 2.

And, as shown in detail in FIG.
A certain degree of airtightness is maintained by the case 25, the side plates, and the rotary valves 5, 6, and the housing 12
A long sirocco fan or plate fan 21 extending in the width direction is provided, and the fan 21 is rotated by a motor. In addition, the wind separation unit 2 is separated from the wind selection room 22 and the cyclone room 23 by a partition wall 26 extending to a position close to the fan 21.
Further, the wind selection chamber 22 guides the wind from the fan 21 to the grain falling portion from the rotary valve 5, and returns the wind from the grain falling portion through the upper portion of the fan 21. A baffle plate 27 for guiding to the cyclone chamber 23 is provided. Further, the cyclone chamber 23 is configured such that the outer case 25 thereof is formed of an arc having a predetermined radius, and the separation plate 28 extends from the partition wall 26, and the wind guided to the baffle plate 27 generates a cyclone flow, Further, a hopper-shaped storage section 29 for storing separated light impurities is formed below the storage section 29. At the lower end of the hopper-shaped storage portion 29, a screw conveyor 30 for light contaminant discharge extending in the width direction of the housing 12 is installed, and the conveyor 30 is driven to rotate and light contaminants stored in the storage portion 29. Things can be discharged out of the machine.

On the other hand, the swing sorting unit 3 located below the wind sorting unit 2 has two swing screens 31 and 32 having the same mesh and the same inclination angle, and these screens 31 and 32 are provided.
The upper part and the lower part are suspended by leaf springs 35, 36, 37, and 39, respectively, and have the same shape and weight and are swingably supported. A gutter 40 is provided below the rotary valve 6. The gutter 40 branches the kernel from the valve 6 and supplies it to the upper screen 31 and to the lower screen 32. Further, along the lower part of the upper and lower screens 31, 32, gutter members 42, 43 are respectively arranged so as to swing together with the screens, and these gutter members 42, 43 are provided with the grains flowing down the screens 31, 32. Grain to product P
And flow down. At the lower ends of the gutter members 42 and 43, screw conveyers 45 and 46 for discharging contaminants are respectively provided at the upper portions of the lower ends of the gutter members 42 and 43 so as to extend in the width direction of the frame 11. , These conveyors 45, 46
Discharges unusual impurities such as spikelets and pebbles that do not filter the screens 31 and 32 outside the machine.

A rotatable driving unit 33 is rotatably supported on the frame 11 at an intermediate portion between the upper and lower screens 31 and 32, and the driving unit 33 is, as shown in detail in FIG. It has two eccentric rings 33a and 33b separated by 180 degrees. These eccentric wheels 33a, 33b are connected to the upper and lower screens 31, 32 via rods 47, 49, respectively, and the upper and lower screens 31, 32 are 180 degrees out of phase based on the rotation of the drive unit 33. Rocks.

 Next, the operation of the present embodiment will be described.

The grain (raw material) M supplied to the raw material supply unit 1 is continuously supplied to the gutter 17 by a predetermined amount by the rotation of the raw material supply rotary valve 16, and the kernel M mixed with the respective impurities is skull. Flow down to par reel 19. Then, in the scalper reel 19, the grains pass through the screen and flow down toward the rotary valve 5, but large impurities such as broken straw are caught on the screen, and as the screen rotates, the large impurities are removed. Are separated by a scraper 19 and further discharged outside the machine by a screw conveyor 20 for discharging large impurities.

On the other hand, the grains that have passed through the scalper reel 19 fall into the wind selection chamber 22 of the wind selection section 2 by a predetermined amount by rotation of the rotary valve 5 for supplying the wind selection section. In the wind separation unit 2, the wind is circulated along the air guide plate 27 by the rotation of the sirocco fan or the plate fan 21 as shown by the arrow, and the kernels fall into the wind selection chamber 22 by a fixed amount. The wind separates light contaminants such as waste. The separated light contaminants are guided to the cyclone chamber 23 along the wind guided by the baffle plate 27, separated by the cyclone flow in the cyclone chamber 23, stored in the storage unit 29, and further lightened. It is discharged out of the machine by the screw conveyor 30 for discharging contaminants. On the other hand, the air separated from the light contaminants in the cyclone chamber 23 is sucked again by the fan 21 and sent to the wind selection chamber 22 without introducing air for air selection from outside the machine and discharging the air outside the machine. It is used by circulating in the wind separation unit 2 which is substantially airtight.

Then, the grain M from which the light impurities are separated is sent by a predetermined amount to the gutter 40 of the swing sorting unit 3 by the discharge rotary valve 6, and further branched from the gutter 40 to form the upper screen 31 and the lower screen 32. It is supplied to the upstream end. In the swing sorting unit 3, the upper and lower screens 31, 32 are rotated by the rotation of the driving unit 33 having two eccentric wheels 33a, 33b separated by 180 degrees.
Are swinging 180 degrees out of phase, and screens 31, 32
The grains supplied to the upstream end portion of the spilled water gradually flow down the slope while being separated by sieve depending on the particle size and the grain shape. The grain P, which is the product obtained by filtering the screens 31 and 32,
The contaminants, such as spikes and pebbles, taken out from 2,43 and left on screens 31,32, are removed by a screw conveyor for discharge.
It is discharged outside the aircraft from 45 and 46.

In addition, although the above-mentioned Example demonstrated what was used for sorting of grains, such as rice and wheat, it is not limited to this, but also sorts of seeds, such as vegetables, sorts of all grains, such as soybeans, or sorts of industrial products. Of course, it can be applied.

(G) Advantageous Effects of the Invention As described above, according to the present invention, a wind screen (31) including a wind screening unit (2) and a swing screening unit (3) can separate light impurities by wind power and can also be used. , (32)
Because it has a high sorting accuracy that can also separate irregular impurities, the closed-type wind sorting unit (2) is configured so that dust does not scatter outside the machine.
It can maintain a good working environment, clear the problems of hygiene and safety of workers, and without restriction on the installation place, work rationally with other equipment such as grain dryer, Efficiency can be improved.

Furthermore, since a long fan (21) is used, a substantially uniform wind acts in the width direction of the wind force sorting unit (2), and since it is a closed type, sufficient air circulation is possible even if the fan has a small capacity. In addition, a large amount of raw material can be continuously dropped into the air separation chamber (22) by the rotary valve (5), so that a large sorting ability can be maintained and high sorting accuracy can be maintained.

Also, the rotary valves (5) and (6), the fan (21)
The air separation room (22) and the cyclone room (23) can maintain the airtightness of the wind separation unit (2) and provide a rational wind circulating flow, so that dust can be scattered outside the machine for a long time. It can be suppressed effectively.

A long fan (21) is disposed between the air selection chamber (22) and the cyclone chamber (23), and the fan circulates air between the air selection chamber and the cyclone chamber. The wind sorter (2) can be reduced in size while being a type, and the closed type wind sorter (2) can be arranged above the swinging sorter (3). It is possible to obtain a sorting machine which is optimal for use in a work machine, has high working efficiency, and can maintain a good working environment.

In addition, two screens (31) of the swing sorting section (3),
If a swing having a phase difference of 180 degrees is applied to (32), the screens can cancel each other's inertial forces and prevent the occurrence of vibration.

[Brief description of the drawings]

FIG. 1 is a front view showing a sorting machine according to the present invention, and FIG. 2 is a side view thereof. FIG. 3 is an enlarged front view showing a wind power sorting unit, and FIG. 4 is a view showing a driving unit of the oscillating screen. 1 ... raw material supply section, 2 ... wind separation section, 3 ... swinging selection section, 5, 6 ... rotary valve, 10 ... (grain) sorting machine, 2
1… Fan, 22… Wind selection room, 23… Cyclone room, 31,
32: swing screen, 33: drive unit, 33a, 33b: eccentric part (ring).

Claims (2)

(57) [Claims] 1. A sorting machine comprising: a raw material supply unit, a wind separation unit, and a swing selection unit having an inclined swing screen, wherein the wind separation unit, the raw material supply unit, Between the swing sorting unit, a rotary valve that supplies and discharges the raw material and maintains the airtightness of the wind sorting unit is installed.In the wind sorting unit, a wind sorting chamber and a cyclone chamber are provided, A long fan extending in the width direction of the wind separation unit is arranged between the wind selection room and the cyclone room, and the raw material is dropped from the rotary valve on the raw material supply unit side to the wind selection room to perform the wind separation, And the light impurities selected by the wind are separated in the cyclone chamber, and only the air is circulated between the wind selection chamber and the cyclone chamber by the fan. Rotary bar on the material discharge side A sorting machine which is guided from the lube to the swing sorting section and further sorts at the swing sorting section. 2. The oscillating selection unit includes two oscillating screens having substantially the same weight and substantially the same inclination angle, and a drive unit having two eccentric parts separated by 180 degrees. , The two eccentric parts are connected to two oscillating screens respectively,
The sorter according to claim 1, wherein the two oscillating screens are oscillated 180 degrees out of phase.