JPH01203047A - Paddy husking device - Google Patents

Abstract

PURPOSE:To minimize the damage of husked rice by performing husking operation through two processes such as a paddy husking device and a sealed vacuum chamber. CONSTITUTION:Hulls supplied to a hull tank 2 are fed to unhulled rice hulling rolls 3a in the tank 2. When the hull passes between the hulling rolls 3a which are set with a comparatively broad space, the hull is scratched or cut by the difference in the peripheral speeds of both rolls 3a which rotate in mutually opposite directions. As a result, the broken hull drops to a sealed vacuum chamber 4 below. As the hull inflates to the peripheral side by a breaking atmosphere in the sealed vacuum chamber 4, the hull easily comes off the unhulled rice. The peeled-apart light hull is expelled to the exterior of a device through an outgoing passage 7, a suction fan and a dust discharge cylinder. In addition, the unhulled rice below by means of a feed valve 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an unhulled rice husking device for peeling the chaff of unhulled rice from brown rice by utilizing a vacuum state.

[Prior Art and Problems to be Solved by the Invention] A conventional hulling device is a huller roll type.

There are impact type types, but these types have problems such as chafing of the brown rice or cracking of the rice.

In addition, as in Japanese Utility Model Publication No. 49-33427, there is a first step in which the plant material supplied to the airtight chamber is exposed to high pressure gas, and a second step in which the plant material is rapidly released to atmospheric pressure. A device for peeling vegetable matter consisting of is disclosed. This device had a problem in that it was difficult to hustle the unhulled rice.

Therefore, the present invention aims to provide a dehulling device that causes less damage to brown rice by effectively supplying vacuum technology and a dehulling roll.

[Means for solving the problem] The technical means of the present invention for solving such technical problems includes a rice husk damage device 3 that damages the rice husks of unhulled rice;
The structure of the unhulled rice husking device consists of a vacuum airtight chamber 4.

[Operations and Effects of the Invention] When the rice that has passed through the rice husk damage device 3 that damages the rice husks of the rice is supplied to the vacuum airtight chamber 4, since the inside of the airtight chamber 4 is in a vacuum state, the rice husks of the rice are damaged. It expands toward the outer periphery, weakening the rice husk tissue and separating brown rice from the rice husk. In addition, if the rice is first supplied to the vacuum airtight chamber 4 and then supplied to the rice husk damaging device 3 that damages the rice husks, the husks of the unhulled rice expand toward the outer circumference due to the vacuum state of the airtight chamber 4. After the rice husk tissue is weakened, it is supplied to a rice husk damaging device 3, where the rice husk is peeled off from the rice.

As mentioned above, the rice husk damaging device 3 and the vacuum airtight chamber 4 are
Since the dehulling action is performed through the process of , the damaging effect on the unhulled rice by the rice husk damage device 3 is weak compared to the dehulling action by the conventional depudding roll, and the damage to the unhulled rice by the rice husk damage device 3 is weaker than the dehulling action by the conventional depudding roll. It is possible to reduce damage.

[Example code] Embodiments of the invention shown in the drawings will be described below.

First, the structure of the embodiment will be described. Reference numeral 1 denotes a shedding section, and this shedding section 1 is constructed as follows. A paddy tank 2 is located above, and a pair of dehulling rolls 3a, 3 are located below the paddy tank 2 and have a relatively wide gap.
A rice husk damage device consisting of a.3. An airtight chamber 4 located below the rice husk damaging device 3; a vacuum pump 5 whose end communicates with the airtight chamber 4; It consists of an airtight delivery valve 6 disposed at the lower end of the airtight chamber 4.

Reference numeral 7 denotes a rice husk delivery path, and the starting end of the rice husk delivery path 7 communicates with one side of the confidential chamber 4, and the terminal end thereof is connected to a suction fan 8 in the front.

The fallen rice that has fallen from the secret room 4 of the scraping section 1 falls to the fallen rice receiving trough 10 via the sifted rice wind selection path 9 below.
The dropped rice that has fallen to the ground is transferred to the thrower-type mixed rice lifting machine
The rice is transported from the tip of the mixed rice hopper 12 to the starting end of the supply gutter 17 on the rotary sorting cylinder 13 side.

Reference numeral 14 denotes a sorting case, and inside this sorting case 14, there is a rotary sorting cylinder 13 having a large number of pot holes on its inner circumferential surface.
The supply side end (right side in FIG. 2) and the discharge side end (left side in FIG. 2) are rotatably supported by drive rollers 15, 15 so that they can rotate in a nearly horizontal state. A supply gutter 17 with a feed helix 16 and a finishing rice gutter 19 with a finished rice helix 18 are horizontally suspended within the rotary sorting cylinder 13.
In arranging the supply gutter 17 and the finished rice gutter 19 inside the rotating sorting tube 13, the supply gutter 17 is placed on the pumping side of the rotating sorting tube 13 rotating from the bottom to the top, as shown in FIG. , the finishing rice gutter 19 is arranged from the upper side of the rotary sorting tube 13 to the side that rotates downward, and the mixed rice drawn up low by the pot hole of the rotary sorting tube 13 falls into the supply gutter 17 and passes through the supply helix 16. The rice is transferred to the terminal end of the supply gutter 17, and the feed gutter 17 also functions as a mixed rice receiving gutter. The discharge side end of the finishing rice gutter 19 is connected to the finishing rice flow lower cylinder 20. It is connected to the finishing rice receiving trough 22 via the finishing rice flow grain plate 21, and while the finished rice passes through the finishing rice flow lower tube 20 and the finishing rice flow grain board 21 and falls to the finishing rice barley 4!122, The brown rice that has been wind sorted in the rice wind sorting channel 23 and flowed down to the finished rice receiving trough 22 is taken out of the machine via the finished rice grain lifting machine 24.

The terminal end side of the finished rice wind selection path 23 is in communication with the suction fan 8 and the dust exhaust pipe 25 via the fallen rice wind selection path 9 below the scraping section 1.

At the discharge side end of the rotary sorting cylinder 13, there is a paddy lifting cylinder 26.
The paddy that has been sorted by the one-rotation sorting cylinder 13 and flowed to the discharge side end flows into the paddy lifting cylinder 26 and is pumped up.
The paddy is returned to the paddy tank 2 of the removal section 1 through the paddy return gutter 27.

Next, the operation of the embodiment will be explained. When carrying out hulling work, paddy is supplied to the paddy tank 2, and each rotating part of the hulling machine is driven. Then, the paddy rice dehulling roll 3a in the paddy tank 2
, 3a, and when passing between the de-pudding rolls 3a, which are set relatively wide, scratches or cuts may occur due to the difference in circumferential speed between the de-pudding rolls 3a, 3a, which are rotating in opposite directions. etc., and the product falls and is supplied to the airtight chamber 4 below.

The damaged rice husks supplied to the airtight chamber 4 expand toward the outer periphery because the airtight chamber 4 is in a vacuum state, and the rice husks are peeled off from the brown rice, and the peeled lightweight rice husks are transferred to the rice husk delivery path 7
．． The dust is discharged to the outside of the machine via the suction fan 8 and the dust exhaust pipe 25. In addition, brown rice and some unhulled rice whose husks are not peeled are subjected to a second sorting action in the airtight feed-out valve 6 at the bottom of the airtight chamber 4 in the sliding rice wind sorting channel 9 below, and then passed through the sliding rice receiver. Fall into gutter 10. Next, the fallen brown rice and unhulled rice that have fallen into the fallen rice catcher 10 are fried in a thrower-type mixed rice lifting machine 11, and then flowed from the tip of the mixed rice lifting machine 11 through the mixed rice hopper 12. It is lifted up and supplied to the starting end of the supply gutter 17 on the side of the rotary sorting cylinder 13, and the supply helix 16 in the supply gutter 17 is used to feed the rotary sorting cylinder 13.
is supplied to the supply end of the

Next, the mixed rice is pumped up through the pot hole of the rotary sorting cylinder 13 which is rotating clockwise in Fig. 3, and the brown rice that has been pumped up high falls into the finishing rice gutter 19 above, and the unpaste rice that has been pumped low. Some of the mixed rice, including brown rice, falls into the supply @ 17 below and is sorted, and the unsorted mixed rice that falls into the supply gutter 17 is conveyed to the conveyance end of the feed gutter 17 by the supply helix 16. , from the terminal end of the supply gutter 17 to the supply side end of the rotary sorting tube 13, where it is re-sorted.

In addition, the brown rice that has fallen into the finishing rice gutter 19 is
8, the finished rice is conveyed to the lower pipe 20, and while it falls through the finishing rice grain board 21 to the finished rice receiving trough 22,
After being sorted by the sorting wind, the finished rice is taken out of the machine by the finished rice lifting machine 24.

The sorted unhulled rice sent to the discharge side end of the rotary sorting cylinder 13 flows into the paddy lifting cylinder 26 .
The unhulled rice pumped up in
The paddy is returned to the paddy tank 2, and is subjected to the dehulling action again in the dehulling section 1.

As mentioned above, the dehulling roll 3 damages the rice husks.
When the unhulled rice that has passed through a and 3a is supplied to the vacuum airtight chamber 4, the damaged rice husk portion of the unhulled rice expands toward the outer periphery because the inside of the airtight chamber 4 is in a vacuum state, weakening the rice husk structure. As this process progresses, the crack expands and the brown rice and rice husks are separated.

It is removed as described above, but the removal roll 3
Since the dehulling action is performed through the process of damaging the rice husks in a and 3a and the process of peeling the brown rice and the chaff in the vacuum airtight chamber 4, there is no damage to the unhulled rice in the dehulling rolls 3a and 3a. The action may be a weak damaging action with a wide gap between the deflating rolls 3a and 3a, compared to the deflating action of conventional deflating rolls, and can reduce the skin rubbing phenomenon of brown rice. be.

In addition, in the above-mentioned embodiment, in the first process, the deflating roll 3a
, 3a to damage the rice husks of the unhulled rice, and in the next second step, the brown rice and the rice husks are peeled off in a vacuum airtight chamber 4 to remove the husks, but in the first step, the vacuum The airtight chamber 4 is made to pass through, and in the second step, it is made to pass through the deflating rolls 3a, 3a.

The structure of the rice husks first supplied to the vacuum airtight chamber 4 is weakened or cracked, and then supplied to the depulling rolls 3a, 3a which damage the rice husks. The rice husks are peeled off.

In addition, a process of passing through a compression airtight chamber (not shown) filled with compressed gas is added to the process of damaging the rice husk, which damages the rice husks, and the process of passing through the vacuum airtight chamber 4, before the peeling process. You may.

Next, FIG. 4 will be explained. A paddy tank 2 is arranged at the top, and a delivery valve 28 is provided at the bottom of the paddy tank 2. This delivery valve 28 is an airtight delivery valve having elastic pieces 28a, 28a, . . . on its outer periphery. 4 is an airtight room located below the paddy tank 2;
A similarly configured airtight delivery valve 6 is disposed at the bottom of the airtight chamber 4, and a vacuum pump 5 is provided at one side of the airtight chamber 4.
are connected. Reference numeral 29 denotes a sorting chamber disposed below the airtight chamber 4, and a rice husk delivery path 7 is located in the middle of the sorting chamber 29.
The starting end side is connected to the starting end side, and the terminal end side is connected to a suction fan (not shown). Reference numeral 30 denotes a grain receiving trough, and brown rice and unhulled rice that have fallen into this grain receiving trough 30 are collected to one side by a rice scraping screw 31, and sent to a mixed rice lifting machine (not shown). The rice is then conveyed to a rotating sorting cylinder (not shown) through which it is separated and sorted into brown rice and unhulled rice.

Next, FIG. 5 will be explained. 32 is an airtight chamber that also serves as a paddy tank, and a paddy supply cylinder 33 is installed in the upper part of this airtight chamber 32.
are connected in an airtight manner, and an airtight delivery valve 34 is provided at the bottom, and the unhulled rice that is shelled in the airtight chamber 32 is passed through the lower pulp rolls 3a, 3a, and then transferred to Fall to Senro 9.

It is subject to wind selection.

In addition, 8 is a suction fan, 10 is a sliding rice catcher, 11 is a mixed rice frying machine, and 14 is a sorting case equipped with a rotating sorting cylinder (not shown), which is constructed in the same way as shown in Fig. 2. There is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a cutaway side view, FIG. 2 is a cutaway front view, and FIG. 3 is a cutaway rear view. FIG. 4 is a cutaway side view, and FIG. 5 is a partially cutaway side view. [Explanation of symbols] 1 Explanation part 2 Rice tank 3a Dehulling roll 3...Rice husk damage device 4 Airtight chamber 5 Vacuum pump 6 Feeding valve 7 Rice husk discharge path 8 Suction fan 9 Sliding rice wind selection path 10 Sliding rice Gutter 11
Mixed rice lifting machine 12 Mixed rice hopper 13 Rotary sorting tube 14 Sorting case 15 Drive roller 16 Supply helix 17 Supply gutter 18 Finished rice helix 19 Finished rice gutter 20 Finished rice flow lower tube 21 Finished rice flow grain plate 22 Finished rice receiving gutter 2
3 Finished rice wind sorting channel 24 Finished rice grain lifting machine 25 Dust exhaust tube 26 Paddy lifting tube 27 Paddy reduction value 28 Feeding valve 29 Sorting room 30 Grain catcher 31 Dropped rice helix 32 Airtight chamber 33 Paddy supply tube 34 Feeding valve

Claims (1)

[Claims] (1) A rice husking device consisting of a rice husk damaging device 3 that damages the rice husks of unhulled rice, and a vacuum airtight chamber 4.