JPS6115954Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain dehulling device for automatically dehulling paddy, wheat, and other similar grains.

Conventionally, roll-type dehulling equipment and buffer-type dehulling equipment are known as methods for de-hulling grains, in particular dehusking rice and separating brown rice, chaff, and defective rice, and these are used to obtain brown rice from a supply of paddy. I am trying to do this automatically.

Roll-type desorption equipment rotates two rollers,
The paddy is inserted between these rollers, and the force of the rollers' engagement separates the skin from the paddy.

However, this roll-type shedding device uses rollers to scrape the paddy unevenly, resulting in splitting and misalignment of the rice, and the embryo, which is the nutrients of the rice, falls off all at once, which deteriorates the quality of brown rice. Sisters. Furthermore, the removal efficiency is poor,
Work efficiency is poor. Furthermore, it is difficult to adjust the gap between the two rollers, and the structure is complicated.

Therefore, in order to solve the drawbacks of this roll-type removing device, an impact-type removing device, such as that shown in Japanese Utility Model Publication No. 43-453, was developed.

This system has a large number of rotary blades arranged in a radial manner, and when the paddy is thrown in the direction of rotation by circular force between the rotary blades, the paddy collides with the terminal for violent sliding, and this impact force causes the rice husk to break. It is designed so that it can be detached. However, since this type of impact-type breaking device was developed to replace the roll-type device and specifically improve the breaking efficiency, it has the ability to separate paddy, chaff, and defective rice such as brown rice or other rice grains. Not enough. Although it certainly has a sorting function, the sorting effect is insufficient because it only performs primary sorting based on air volume.

In addition, commercially available shock release devices actually have two sets of rotary blades on both sides of the main body, and once a shock removal operation has been performed, the current removal operation is repeated using another rotor blade. As a result, there are many cases of broken rice, splitting, peeling, and shedding of the germ, which improves the removal efficiency, but results in a large amount of defective rice.

In addition, since conventional rotary blades are equipped with a large number of blades arranged radially around the rotating shaft, the gap between the blades is small, and as a result, the amount of paddy that passes through this gap is small, which reduces the processing capacity. As a result, the amount of processing required to obtain brown rice from paddy is also reduced. Moreover, the gap between these blades is small, which means that when threshing is done directly in the fields, some of the rice straw, wheat straw, etc. attached to the paddy get together and enter the gap between the rotor blades, making the blade narrow. There is a risk that this rice straw or the like may get stuck in the gap, which may damage the shedding device or require a temporary stoppage of the shedding operation.

Furthermore, if you stop the machine and then restart it,
Unprocessed rice and brown rice remain between the rotor and the casing that covers it, and it is difficult to reuse them unless they are completely removed from the outside, and if they are used in this state, the machine will be damaged and the rice will break, resulting in defective rice. Furthermore, in conventional roll-type dehulling devices, when the dehulling work is completed and the rice is separated from the brown rice, one or several sieves are used to sift the rice, but because the removal rate is low, the sieve must be made large and long to widen the area, and if the operation is incorrect, the rice will get mixed in with the brown rice, and because the rice is flowed onto a naturally inclined sieve, the angle must be adjusted frequently.

This invention solves the above-mentioned conventional drawbacks, has a relatively simple structure, and can efficiently remove the work without damaging the brown rice. Moreover, by comparing the air volume, wind speed, and specific gravity, it is possible to reliably separate brown rice, rice husk, and rice cake. It is an object of the present invention to provide a recycling-type, impact-type grain removal device that can separate grains into grains.

An example of implementing the present invention will be described below with reference to the drawings.

The dehulling device of the present invention has a dehulling section 2 disposed at the lower side of the main body 1, and paddy to be processed and other similar shelled materials are fed into this dehulling section from a hopper 3 provided at the upper side of the body 1. supply is becoming available.

In the detaching section 2, the rice husks collide with the inner wall of the casing 4 due to the centripetal force and are separated from the brown rice by the impact. Paddy, rice husks, and straw waste are mixed in the hopper 3 and are supplied as they are to the removing section 2, and the brown rice, rice husks, rice husks, and straw waste separated in the removing section 2 are sent to the sorting section via the pipe 5. Sent to 6. A plurality of wind cylinders 7 having different diameters are arranged in the sorting section 6,
One side of this wind barrel is connected to a rice husk discharge port 9 via a fan 8.
The other side is connected to the air suction port 10 and the brown rice and paddy removal port 11, and when the air is sucked from the air suction port 10 by the rotation of the fan 8, the brown rice and unprocessed paddy that fall into the wind barrel are removed. , rice husks and rice grains are sorted separately based on the wind pressure and specific gravity difference, the rice husks are discharged to the outside from the rice husk discharge port 9 by the fan 8, and the rice grains are separately discharged to the outside from the rice grain discharge port, and the rice grains are separated from each other by the difference in specific gravity. The heavy brown rice and paddy are transported from the take-out port 11 to the lifting device 12.
sent to. The upper part of the rice husk discharge port 9 can be oscillated to prevent waste from accumulating in only one place.

The elevating device 12 has a large number of buckets 13 facing the takeout port 11, which are rotatably arranged via a conveyor 14, and the brown rice and paddy overflowing in the buckets 13 are conveyed to a tank 15 via the conveyor 14 and the buckets 13. It's becoming like that.

The brown rice and paddy supplied to tank 15 are transferred to Mangoku equipment 1.
This Mangoku device 16 is equipped with slanted nets in three stages, and the Mangoku is used to drain brown rice,
After being sorted into paddy, only the brown rice is taken out through the brown rice chute 17, and the paddy is taken out through the paddy chute 18.
The material is returned to the hopper 3 via the hopper 3 and deprocessed again. In other words, untreated paddy is recycled and completely removed.

As shown in FIGS. 5 to 7, the removal part 2 has a snail-shaped inner case 19 that is a casing 4, and
A lid 20 attached to the case 19 and a plurality of rotary blades 2 rotatably disposed inside the case 19.
It consists of 1. Case 19 is bracket 22
This case 19 is fixed to the main body 1 side of the removing device through the
is fixed via a clamp 23 on the case 19 side and a hook 24 on the lid 20 side.

A rotating shaft 25 passes through the center of the case 19, and a bearing 2 is attached to the rotating shaft 25 inside the case 19.
A rotary disk 26 is rotatably connected to the rotary disk 26 through the rotary shaft 25.
Two rotary blades 21 are connected radially through pins 27, and another disk 28 is pin-connected to the other side of the rotary blade 21, facing the disk 26.

The inside of the case 19 may be horizontal, but to increase its strength it is bulged inward to form a step 29, and a shock absorbing sheet 30 made of rubber or other similar material is tightly attached to the inner wall in the circumferential direction, with this shock absorbing sheet 30 and the case 19 being connected in various places via screws, nuts or other similar mounting members 31.

Thirty-six rotary blades 21 are connected to the disk 26 at an angle of 10 degrees about the rotating shaft 25, thereby forming a considerably wide gap between the rotary blades 21.

The rotor blade 21 has long bent pieces 21b with an L-shaped cross section formed on both sides of the main body 21a, and the bent pieces 21b are connected to the disks 26 and 28 with pins, and the lower end of the main body 21a is cut outward. A notch 32 is formed, and a rubber or similar cushioning member 33 is fixed to the upper end of the notch 32. In addition, in the rotary blade 21, the main body 21a has a support portion 21c bent into an L shape.
A buffer member 34 made of rubber or other similar material and having a tapered surface 34a formed at the corner is connected to the support portion 21c with a pin, bolt, or the like.

Next, the lid 20 of the removal part 2 has a large hole 35 in the center.
A hopper 3 is attached above this hole 35 via an inclined bracket 36, and an outlet 37 of the hopper 3 passes through a hole 38 in the center of the disk 28 and opens at the center of the rotor blade 21. However, grain such as paddy in the hopper 3 is supplied to the center of the rotary blade 21. A guide 39 is fixed to the lid 20 facing the lower side of the hole 35.
A semicircular notch window 40 is cut out in 9, and this notch window 40 is inserted into the shielding plate 41 inserted into the guide 39.
When the hole 35 is moved up and down, the hole 35 is selectively opened to the outside atmosphere, and by adjusting the vertical position of the shielding plate 41, the air in the atmosphere can be drawn into the removal part 2 according to the opening area of the hole 35. It's starting to get sucked into.

Next, the paddy, brown rice, etc. processed in the removing section 2 are sent to the sorting section 6 via the pipe 5, but a chamber 42 is provided above the sorting section 6, and a grain dispersion member is provided in this chamber 42. 43 is provided so that the paddy, brown rice, rice husks, rice bran, etc. that hit the dispersing member 43 fall uniformly to the sorting section 6. This dispersing member 43 has a holder 45 attached to a support member 44, and the opening end of the pipe 5 communicating with the removal part 2 is opened at the upper end of the holder 45, and the lower end of the holder 45 is opened downward. A buffer member 46 made of rubber or the like and having a V-shaped cross section is disposed below, and the paddy, brown rice, etc. supplied from the pipe 5 bounces off the buffer member 46 and scatters into the chamber 42 at the lower part of the chamber 42. It is designed so that it is not uniformly led to the sorting section 6 from the outlet 47.

The sorting unit 6 is provided with a wind cylinder 7 between an air suction port 10 and a rice husk discharge port 9, and when a fan 8 is rotated, air is sucked in from the air suction port 10 and the air inside the wind cylinder 7 is The air volume and pressure are set according to the inner diameter of each room. The wind body 7 has a cylindrical chamber 48,
The chambers 49, 52 are led to the fan 8 side through passages 53, 54, and below the air suction port 10, paddy and brown rice are fed through a chute 55. An outlet 11 is provided.

An outlet 47 opens in the chamber 48 , and this passage communicates with the chamber 49 via a passage 57 whose opening area is determined by a partition 56 , and the chamber 50 is located below the chambers 48 and 49 . Chamber 4 via 58
9 and 50 communicate with each other, and the chamber 50 opens to the chamber 52 side via a passage 60 whose opening area is narrowed by a partition 59. Further, a chamber 51 is located below the chamber 50, and this chamber 50 is connected to the partition 61. Passage 6 whose opening area is narrowed by
The passage 52 opens into the chamber 52 through the passage 52, and furthermore, at the lower end of the passage 52, a rice cake outlet 63 is provided facing downward. Further, a partition wall member 64 stands up at the end of the chamber 52 on the passage 54 side, and the height of this partition wall member 64 is made equal to the height of the partition 61.

Passages 65, 66, 67 are integrally provided between the air suction port 10 and the chambers 48, 50, 51.
A curved surface 68 is formed at a position facing the chambers 48 and 50, and a curved surface 69 is formed in the chamber 66 facing the air suction port 10 and the chamber 65, and the chamber 66 communicates with the chute 55. There is. In the sorting section 6, by rotating the fan 8, air is sucked in through the air suction port 10 and exhausted at the rice husk discharge port 9 side, and is also sucked into each chamber 48, 49, 50, 51, 52 of the wind barrel 7. The air flows through the inner diameter of each chamber and the passages 50, 60, 6.
There are differences in air volume, wind speed, and wind pressure depending on the area of 2.
Moreover, the brown rice, paddy, rice husks, and rice grains that fall from the exit 47 are sorted in each room based on the difference in specific gravity, and only the rice husks are passed through passages 53 and 54 to the fan 8.
The rice husks are discharged to the outside from the chaff discharge port 9. Further, unprocessed paddy and brown rice, which have a heavy specific gravity, are sent from the chute 55 to the elevating device 12 through the take-out port 11, and only rice grains, which have a relatively light specific gravity, are discharged to the outside from the rice-grit take-out port 63.

As shown in FIG.
0 has upper and lower sprocket wheels 71, 72 and a chain 73 installed thereon, a plurality of buckets 13 are fixed to the chain 73 at equal intervals, and the lower side of the case 70 contains paddy and brown rice. The inlet 11a facing the takeout port 11 is opened, and the paddy and brown rice guided to the takeout port 11 and the inlet 11a fall and accumulate at the bottom of the case 70, and each bucket 13, which rotates repeatedly, collects the collected paddy and brown rice. The paddy and brown rice are scooped up and transported upward one by one. The upper end side of the lifting device 12 opens into the tank 15 through a hole 15a, and the bucket 13 moves the selected paddy and brown rice upwards.
Because it falls over once, it is discharged into the tank 15.
A tension adjustment device 74 for the chain 73 is provided at the upper part of the lifting device 12, so that the tension of the chain 73 can be finely adjusted from the outside as desired. Further, an outlet 75 is provided at the bottom of the case 70 opposite to the hole 11a.
Normally, this outlet 75 is sealed with a lid, but if the machine is temporarily stopped, the lid is opened and the paddy and brown rice remaining on the bottom surface of the case 70 are scraped off from the outside. It is now possible to do so.

Further, a window 76 is opened in the upper part of the case 70 at a position opposite to the hole 15a, so that the interior can be inspected through the window 76.

Next, the tank 15 faces the hole 15a on the side of the lifting device, and is also arranged at the upper end of the mangoku 16, so that the paddy and brown rice discharged from the bucket 13 of the lifting device 12 evenly overflows to the bottom of the tank 15. It is made to come out. The tank 15 is provided with a lid 15b, which is opened and closed by rotating a handle 78. When the lower part of the lid 15b is slightly opened by operating the handle, the paddy and brown rice in the tank 15 are filled with 16 million stones. It overflows evenly over the top.

Mangoku 16 consists of three wire meshes 79, 80, 81 stacked downward at an arbitrary interval, and this wire mesh 7
9, 80, 81 can be vibrated by cams or other members, the upper ends of the wire meshes 79, 80, 81 face the outlet of the tank 15, and the lower ends thereof are connected to three vertically arranged chutes 82, 83. , 84, respectively. Paddy and brown rice are sorted in each wire mesh 79, 80, 81, only the paddy is taken out from the top wire mesh and guided to the chute 82, and the remaining brown rice and some of the paddy are separated in the second wire mesh 80. A part of brown rice and paddy are discharged into a chute 83, and only the brown rice is taken out to a third wire gauze 81, which leads to a chute 84. Shoot 82 is Hopper 3
and the chute 83 is returned to the chamber 42 above the sorting section 6.
They are returned to the factory and the process of removing and sorting them is repeated. Further, the brown rice in the chute 84 is taken out to the outside via the chute 17. The above-mentioned mangoku is made by stacking three wire meshes 79, 80, and 81 with the same mesh, but since the diameters of brown rice and paddy are different and a certain amount of vibration is applied, this mangoku device 16 almost completely separates brown rice and paddy. can be selected. A motor 86 is provided on the support base 85 of the removing device, and this motor 86 is designed to give rotational motion to the rotating shaft 25 of the removing section 2 and the wheel 71 of the lifting device 12.

Next, we will discuss the operation.

Paddy, rice cake, etc. supplied from hopper 3 are delivered to exit 37
It is sent to the center of the case 19 via. At this time, inside the case 19, the disc 26,
28 and the rotary blades 21 connected thereto are rotating, and the paddy from the hopper 3 and the air from the holes 35 are blown away in the rotational direction by the centripetal force of the rotary blades 21 connected to the rotary blades 28.
1 and collides with the buffer sheet 30 provided on the inner surface of the case 19. Buffer sheet 30
When the rice husks collide with the rice husks, the impact cracks the rice husks and separates them from the brown rice, and the separated brown rice and rice husks are sent to the chamber 42 via the pipe 5. The rotor blades 21 are radially 36
Since there are two rotary blades, the gap between the rotary blades 21 is relatively large, and a large number of rice grains can be thrown through this gap, increasing the processing efficiency. Furthermore, since the rotor blade 21 is provided with buffer members 33 and 34 made of rubber or the like at the lower part and the tip thereof, when the paddy blown in the direction of rotation hits the buffer members 33 and 34, it gives a large impact to the rotor blade. In addition, since the upper buffer member 34 has a tapered surface 64a in the direction of rotation, the paddy can be smoothly transferred to the buffer sheet 3.
0 to prevent damage to the rotor blade 21, splitting of the hull of the paddy, and shearing of the skin. Further, since the buffer sheet 30 is uniformly provided on the inner surface of the case 19, the collision area with the paddy is large, and the removal capacity is large. A notch 32 is formed below the rotor blade 21 to provide a large gap between the rotor blade 21 and the outlet 37, and since the gap between the rotor blades 21 is relatively wide, it is difficult for straw debris to enter this gap and cause a blockage. This prevents such problems and ensures smooth operation at all times. Further, the amount of air supplied and the amount of air sucked from the hopper 3 can be easily controlled from the outside by moving the shielding plate 41 up and down to change the opening area of the hole 35.

The rice husks, brown rice, unprocessed paddy, etc. sent from the dumping section 2 are guided to the sieve 45 in the chamber 42;
The rice husks etc. that fly out from the buffer member 46 hit the entire surface of the lower V-shaped buffer member 46, and since the upper surface of this member 46 is inclined in a V-shape, the rice husks etc. hit this buffer member 46.
When it hits and bounces off, it scatters uniformly within the chamber 42. Moreover, since the inner wall of the chamber 42 is inclined in the shape of a hopper and is concentrated at the outlet 47, the paddy, etc., evenly scattered in the chamber 42 flows from the laterally long outlet 47 to the chamber 47.
It falls evenly to the 8th side.

Next, unprocessed paddy, processed brown rice, rice husks, and rice grains, which are defective rice, fall from the chamber 42 into the chamber 48 via the outlet 47. The wind forcibly sucked in from the air suction port 10 by the rotation of the fan 8 flows into the chambers 66, 65, 4.
8, 50, and 51, and are sent out to the passages 53, 54, fan 8, and discharge port 9 side. The air sucked into the chamber 48 flows into the chamber 49 through a passage 57 narrowed by a partition 57. At this time, the cross-sectional area a ₂ of the passage 57 becomes smaller than the cross-sectional area a ₂ of the chamber 48, so the flow velocity u in the passage 57 increases. Brown rice, paddy and rice husks are absorbed by this flow rate. A portion of the rice husks and paddy having a low specific gravity are blown into the chamber 49. Room 48
Since a partition plate 56 is provided that separates the chamber 49 from the chamber 49, the paddy, brown rice, and rice grains that have fallen into the chamber 48 fall downward on the plate surface 48a that is set above their respective angles of repose. The paddy proceeded to room 49 again.
Some of the brown rice and rice cakes change in cross-sectional area, in other words, the cross-sectional area _a1 of passage 57 and the cross-sectional area _a3 of passage 49 change.
Since a ₃ > a ₁ , the rice husks fall into the chamber 50 through the passage 58 where the wind speed is weakened, and only light rice husks are sent to the passage 53 side.

Each material falls downward through the bottom surface 48a in the chamber 48 and through the bottom surface 50a in the chamber 50, but since the wind is always sucked in by the fan 8, the speed of this wind causes the 48,50,5
It is sucked back to the 1st side.

When the paddy, brown rice, and rice grains that have entered the chambers 48, 50, and 51 move from the chambers 48, 50, and 51 to the next chambers 49 and 52, the exits are narrowed by the passages 60 and 62, so in the above case. Similarly, due to the change in the cross-sectional area, only brown rice and paddy, which have a heavy specific gravity, fall from the chute 55 to the outlet 11, and only rice husks, which have a light specific gravity, are guided to the discharge port via passages 53 and 54. Moreover, due to the change in the cross-sectional area of the passage 62 and the cross-sectional area of the chamber 52,
Furthermore, since the heights of the partition 61 and the partition wall member 64 are equal, the rice husks and rice husks introduced into the chamber 52 are separated, and only the rice husks with a light specific gravity are introduced to the discharge port via the passages 53 and 54. Moreover, due to the change in the cross-sectional area of the passage 62 and the cross-sectional area of the chamber 52, the partition 61 and the partition wall member 6
4 are equal in height, the rice husks and rice grains introduced into the chamber 52 are separated, and the rice husks with light specific gravity are discharged through the passage 54 to the rice husk discharge port, and the rice grains with heavy specific gravity are discharged to the outside through the outlet 63. be done.

As mentioned above, in the sorting section 6, the operations of dropping and sucking up paddy, brown rice, rice bran, and rice husks are carried out in each chamber 48, 50, 5.
1, the rice husks, rice grains, and brown rice are separated by separation based on the difference in specific gravity, and the rice husks with light specific gravity are sucked into the fan 8 and discharged, and the rice grains are sent to the outlet 61.
The unprocessed paddy and brown rice, which are taken out from the hopper and have a particularly heavy specific gravity, are sent to the lifting device 12 through a chute 55, and recycled, and the unprocessed paddy is returned to the hopper 3 or the chamber 42 again.

The principle of the sorting section 6 is a head-based sorting method that takes advantage of changes in air volume and wind speed for the difference in specific gravity of paddy, brown rice, and rice cake, but the preconditions and fluid flow must be defined as a steady flow. , is a forced suction method using a constant rotation speed,
Each compartment in the separation section is fixed, the internal pressure is constant, the internal temperature is atmospheric normal temperature, and the high specific gravity and true specific gravity of paddy, brown rice, and rice cake can be defined as constant. The specific gravity of rice grains, etc. is not affected by changes in atmospheric temperature, and the resistance due to sliding friction due to the angle of repose of rice grains, etc. is constant. Also, to express this principle mathematically, the cross-sectional area a of the flow tube, which is each chamber and passage, is constant, and there is no flow that crosses the streamline, so according to the law of conservation of mass, for this flow tube, pau = constant. (However, p...specific gravity, a...cross-sectional area, u...flow velocity, x
...Air volume) Specific gravity p varies depending on each material, but is constant for each one. The cross-sectional area a is fixed and does not change, but since the size of each chamber is different, the cross-sectional area is different. It is expressed as the mathematical formula x=pau,
u=x/pa, and u=x/p×1/a. Since x and a are constants and do not change, a change in u will affect p.

Therefore, if u becomes large, balance cannot be achieved unless p becomes large, and if u becomes small, balance cannot be achieved unless p becomes small. Therefore, when u becomes smaller due to a change in the cross-sectional area, if p does not change, the balance is broken and p>u.

The dehulling device of the present invention is (1) easy to operate, anyone can operate it with a single touch, and by simply putting paddy into the hopper, everything from hulling to sorting can be done automatically. (2) Due to the cyclone wind pressure difference, there is no chapping or cracking, and almost 100% of quality brown rice can be obtained. (3) Automatically sucked paddy can be processed from small quantities to large quantities, for example from 1 sho to 20 bales, (4)
Since it is small and compact, it can be easily carried anywhere without taking up much space, has a simple structure, and is advantageous in terms of cost.

(5) 36 rotary blades are provided, meaning that the spacing between them is 10
It has a wide gap and prevents clogging with shells, straw waste, etc. (6) Since the rotary blade is provided with a buffer member, the paddy thrown in the direction of rotation does not cause a large impact when it hits the buffer member. Furthermore, since the buffer member is provided with a tapered surface, the shell is smoothly guided to the impact sheet, and splitting of the hull of the paddy and shearing of the hull can be prevented. (7) By providing a dispersion member between the removal section and the sorting section, the rice grains, etc. are uniformly sent to the sorting section, and large impacts are not generated.
(8) The unprocessed paddy separated by the mangoku is returned to the hopper via the chute, and by repeating this cycle, it is possible to reliably remove almost all of the rice.

[Brief explanation of the drawing]

The attached drawings relate to one aspect of the present invention, and FIG. 1 is a left side view, FIG. 2 is a right side view, FIG. 3 is a front view, FIG. 4 is a partially cutaway side view of the lifting device, and FIG. Figure 6 is a partially cutaway front view of the removal part, Figure 6 is a longitudinal side view of the removal part, Figure 7 is a back view of the removal part, Figure 8 is a side view of the dispersion member, and Figure 9 is a vertical view of the lifting member. vertical front view,
Figure 10 is a longitudinal cross-sectional side view of Mangoku. 2...Leave the club, 6...Selection club, 8...Juan,
10... Air suction port, 15... Tank, 16...
Mangoku, 12... Lifting device, 19, 20... Case, 21... Rotating blade, 48, 49, 51, 52...
...room.

Claims (1)

[Scope of utility model registration request] The paddy supplied from the hopper is removed, and the 36 rotary pieces are rotatably arranged in a case with a buffer sheet fixed to the inner surface in the circumferential direction, and a tapered surface is formed in the corner of the buffer member at the tip in the direction of rotation. A dispersion member consisting of a dispersion part consisting of a wing, a holder connected to the dispensing part via a pipe, a buffer member having a V-shaped cross section provided at the lower part of the dispersion member, and an outlet side opening provided below the dispersion member. A sorting section that separates rice husks and brown rice, unprocessed paddy and rice cake using a plurality of wind cylinders with a narrowed area, a rotatable conveyor that transfers the brown rice and unprocessed paddy sent from the sorting section to a tank, and this conveyor. A lifting device consisting of multiple buckets attached to a conveyor and multiple vibrating wire meshes installed close to the tank are used to separate brown rice from unprocessed paddy. A grain removal device consisting of a chute that circulates unprocessed paddy to a hopper.