JP4153844B2 - Polishing method, polishing apparatus, polishing material, washing-free rice production method and washing-free rice production apparatus - Google Patents

Description

  The present invention relates to a method and apparatus for further polishing rice using rice mill as a raw material, and a method and apparatus for producing clean, clean rice that does not require washing at the time of rice cooking, and a rice polishing material used in this rice polishing. About. The present invention relates to a technique for producing clean rice or non-washed rice by a dry method by polishing rice without using water.

On the surface of the polished white rice, there remains a viscous nuka that cannot be removed by a rice mill. By scouring the rice, the nuka on the surface of the rice is washed away, making it delicious. Wash-free rice eliminates the hassle of washing rice. Wash-free rice is sanitary (clean) rice that does not need to be washed. You can take rice out of the bag, pour water and cook rice right away.
There are two methods for producing washing-free rice: a wet method in which water is used to remove nuka from the surface of the rice and then dried, and a dry method in which nuka is removed without using water. The so-called water-washing wet method, which uses water to rub the polished rice in the water without using the polished rice material, is the mainstream of the current washing-free rice production method. However, the disadvantages of this method are problems such as a decrease in taste and deterioration of the polished rice, but it is worth mentioning that there is a difficulty in generating mold and the like.
The present applicant has proposed an invention relating to a method and an apparatus for producing washing-free rice by a dry method. That is, Japanese Patent No. 2958885 “Cleaning Rice Manufacturing Apparatus and Manufacturing Method” (Patent Document 1) and Japanese Patent Laid-Open No. 2001-327881 “Cleaning Rice Manufacturing Apparatus and Manufacturing Method Using Degreased Rice” (Patent Document 2). It is.
These inventions pay attention to defatted rice bran as a polishing material and try to remove the residue remaining in the polished rice. This is a method of stirring and polishing rice by attaching a rotating body to the rotating shaft in order to bring the milled rice and the polished rice into contact with the dehydrated rice bran remaining on the surface of the rice by mixing and stirring. This polishing technology is a process in which the polished rice material rotates between the polished rice and the polished rice, and it takes a long time to polish the polished rice to a level that sufficiently reduces the turbidity of the polished rice. There was room for improvement.

In Patent Document 1, defatted rice bran and a nut-shaped pressurizing material are blended with raw rice polished rice, and these blends are put into a rotating drum, subjected to rotary stirring treatment, and cleaned rice, pressurizing material, and cleaning material are mixed. It is an invention for producing clean rice which is screened and removes fine powder adhering to the rice grains.
Patent Document 2 is an improved version of the invention proposed in Patent Document 1, which is a manufacturing apparatus for producing clean rice by mixing treated rice and defatted rice cake without using a pressurizing material. Means and device configuration are improved.

On the other hand, defatted rice cake is defatted, so it is easy to adsorb nuka containing lipids on the surface of polished rice, it is hard enough not to damage rice even if rubbed strongly, and its moisture content is about the same as rice. It is easy to adjust and can be mixed with rice to prevent dry cracking without drying it, it is a natural material obtained from rice, it is a safe material, and it can be obtained inexpensively in large quantities and is familiar with rice However, the present inventor is an abrasive material that has been attracting attention from the past.
The familiarity with rice is that it adheres to the surface of the rice and, on the contrary, it is hard to fall off, so it has been devised as previously filed. In this invention, further, the device and the defatted rice bran are further devised to further improve the efficiency and the cleanliness of the surface of the rice.

Japanese Patent No. 2958885 2001-327881

The present inventor has been researching a method and an apparatus for efficiently contacting and rubbing the defatted rice bran and the polished rice to attach and remove the residue remaining on the polished rice. As a result, a means for pressing the defatted rice bran against the surface of rice by interposing a pressurizing material has been proposed, and a method and an apparatus for improving the stirring method have been proposed. Furthermore, as a result of continuing research and development, in the conventional proposal, in order to stir a large number of polished rice and defatted rice cake together, there is a lack of ingenuity to make sure that the defatted rice cake comes into contact with individual rice grains. It is an object of the present invention to develop a method and apparatus that realizes effective rubbing of individual rice grains by recognizing that stirring and finishing for a long time are unstable.
In addition, the properties of the defatted rice bran, which is a polished rice material, will be examined in detail, and the properties that reliably remove and remove the residue remaining on the polished rice grains, and the defatted defatted rice cake as a defect due to familiarity with rice It is an object of the present invention to improve the problem of sticking to the rice side and taking time for re-removal.
In addition, the present invention provides a rice polishing apparatus as a system by inventing a means for automatically mixing rice milling material and a rice polishing material to maintain the rice polishing efficiency and accuracy.
In addition, it is intended to reduce the generation of waste and provide low-cost raw material costs by recycling and using polished rice.

In order to suppress the adverse effect that the stirring means such as a polishing rice stick and the polished rice and the polished rice material rotate together and the chance that the polished rice material is rubbed against the rice grains is reduced, A means for restricting the movement of the milled rice is provided. Or in order to add the effect | action which slides on each rice grain reliably, the method and mechanism which restrict | limit the clearance gap of the movement space of a rice grain are provided.
Furthermore, in order to improve the accuracy of this method, by applying the action of rubbing to individual rice grains, in order to eliminate the disadvantage that the polished rice is stuck to the rice grains, The present invention proposes a defatted lees from which a pregelatinized white starch is removed.

That is, the present invention has the following configuration.
1. While relatively moving between two objects arranged with an interval of 2 to 20 mm , rice grains and defatted rice bran are supplied to the two object intervals,
This is a polishing method in which the two objects are moved in one direction or in different directions, and the rice grains are friction-polished while allowing the defatted koji to act on each of a large number of rice grains. A polishing method characterized by not releasing .
2. In a polishing rice tank, a method of polishing rice by rotating and stirring the degreased rice cake without separating it from the polishing rice tank while imparting rotational resistance to the polished rice and the defatted rice cake with a rotating body and a fixed body. A polishing method characterized in that the spacing between the rotating body and the fixed body is 2 to 20 mm, and a degreasing koji is applied to each of a large number of rice grains to polish the rice grains .
3. Milled rice and defatted rice cake are put into a polishing rice vessel provided with a plurality of fixed rods arranged in a comb-like shape at intervals and a moving rod body that moves through the space between the fixed rods, and the defatted rice cake is polished. in Ken US vessel without separating the discharge from the container, the passing distance fixing rod to the moving rod is a 2 to 20 mm, and milled with a load resistance by a fixing rod to the moving rod on rice 1. A process of applying a polishing action to rice grains by moving the defatted rice cake to cause the defatted rice cake to act on each of a large number of rice grains . The described rice polishing method.
4). 1. Controlling the opening / closing degree of the feeding means to the rice polishing portion of the rice polishing tank and the outlet of the rice polishing tank, and polishing the rice by applying pressure to the milled rice that is being stirred by rotation. Or 3. The described rice polishing method.
5. 1. Polished rice and defatted rice bran separated after scouring treatment are separated by a sieve, and the separated defatted rice bran is recycled again, while polished rice removes fine powder. ~ 4. The polishing method according to any one of the above.
6.1. ~ 5. A method for producing wash-free rice by applying the method according to any one of the above.
7). An apparatus for polishing milled rice by rotating and stirring the milled rice and defatted rice bran without separating and discharging the defatted rice bran in the polished rice container. A plurality of resistors provided fixedly spaced in the lengthwise direction, and a rod-shaped polishing rod arranged at a passing interval of 2 to 20 mm facing each other in the polishing vessel, A rice polishing apparatus is a rice polishing machine comprising a rice polishing machine configured to move relative to each other.
8). 7). In the rice polishing apparatus equipped with the rice polishing machine described in 1 ), the quantitative supply machine (A) for supplying a predetermined amount of the raw rice polished rice supplied from the rice polishing stocker and the defatted rice bran supplied from the rice polishing material stocker, the quantitative supply from machine via a hopper receiving the material polished rice and defatted rice bran in KenYone container, resistor and Ken US rod by stirring Labs rice to the Research rice machine (B), and rice discharged from該研US machine (B) sieve for sorting separating defatted bran and waste fines and polished rice and reuse defatted bran (C), by adding a new defatted rice bran to reuse defatted bran feeding the metering feeder Ken US material replenishing mechanism (D), fine A rice polishing apparatus provided with a polished rice tank (G) for containing white rice with or without a sieve (E) and / or a fine powder suction machine (F) for removing fine powder.
9. The metering feeder is a vibratory feeder equipped with a feed trough, a polished rice feed tube and a polished rice feed tube, and the feed amount is adjusted by changing the distance between the tip of both tubes and the receiving surface of the bottom surface of the feed trough. The receiving surface corresponding to the supply cylinder positioned on the downstream side is a quantitative supply machine having a supply amount adjusting mechanism provided so as to be positioned above the material flow surface supplied from the upstream side. 8. The described rice polishing equipment.
10. 6. A polishing machine in which a polishing bar is fixed to a rotating shaft passing through the center of the polishing container is used. ~ 9. The polishing apparatus according to any one of the above.
11. 6. A polishing machine is used in which the polishing container rotates and the polishing bar is fixed. ~ 9. The polishing apparatus according to any one of the above.
12 6. A rice polishing machine having a cylindrical shape, a polygonal shape or a frustum shape and equipped with a polishing rice vessel arranged vertically, horizontally or diagonally is used. ~ 11. The polishing apparatus according to any one of the above.
13. A polished rice vessel shell provided with a resistor rod on the inlet and outlet and inner wall of the milled rice and defatted rice bran , and a polished rod provided on the rotary shaft provided on the central axis of the polished rice vessel shell It ’s a research rice tank,
In the polishing tank, one to several resistors are provided in a rod shape from the inner wall toward the center, and a plurality of resistors are provided in a comb-like shape at intervals in the longitudinal direction. 1 to several in the radial direction at the position of the rotating shaft opposite to the gap between the resistor rods provided in the shape, and use a rice polishing machine provided with a feed screw on the inlet side of the rotating shaft Characterize 7. -12. The polishing apparatus according to any one of the above.
14 6. The resistor and the polished rice rod are provided to be inclined toward the discharge port side. ~ 13. The polishing apparatus according to any one of the above.
15. 6. The closest approach distance between the resistor and the polished rice rod is set in the range of the minor axis to twice the major axis of the rice grain. -14. The polishing apparatus according to any one of the above.
16. The cross section of the resistor and the polished rice rod is semicircular, oval or chamfered rectangle. -15. The polishing apparatus according to any one of the above.
17. 6. The shape, installation interval and / or rotation of the resistor rod and the rotating rod are controlled so that the temperature of the polished rice in the polishing machine becomes 54 ° C. or less. -16. The polishing apparatus according to any one of the above.
18. The polished rice material replenishment mechanism D includes a polished rice material circulation supply tube that sends a reused degreasing paddle from the sorting and separating sieve (C) to the quantitative feeder (A), and a new polished rice material supply tube from the polished rice material stocker. And a new blasted rice material supply tube is joined in the middle of the circulating supply tube, and at the merging point, a rotation fulcrum is provided at the merging position side of the new polished rice material supply tube, and a tip is provided at the edible material circulation supply tube side. 7. A control valve having a free side is provided, and a structure having a mechanism for adjusting the minimum opening of the control valve is provided. -17. The polishing apparatus according to any one of the above.
19. 7). -18. An apparatus for producing washing-free rice using the polishing apparatus according to any one of the above.
20. A polished rice material obtained by removing whitened starch from defatted rice bran.
21. 1. Use of a polished rice material obtained by removing whitened starch from defatted rice bran. ~ 6. Or a method for producing wash-free rice.
22. 6. A polished rice material obtained by removing whitened starch from defatted rice bran is used. ~ 19. The polishing apparatus or washing-free rice production apparatus according to any one of the above.
23. As a specific configuration of the rice polishing machine, the outer diameter of the polishing rice vessel shell is 500 to 50 mm, the shaft diameter of the rotating body is 485 to 5 mm,
The width of the rod-shaped body provided on the inner wall of the polished rice container shell is 10 to 100 mm,
The width of the rod-shaped body provided on the rotating body is 5 to 50 mm,
The thickness of both rod-shaped bodies shall be the strength that will not break due to the rotational resistance,
The tips of both rod-like bodies can be arranged with a gap three times as long as the minor axis to major axis of rice grains from the opposing inner wall or the surface of the rotating body.
24. The rotation speed of the rice polishing machine of the rice polishing apparatus is sufficiently lower than the rotation speed of the conventional rice polishing machine, such as 350 rotations / minute or less.

・ Non-washed rice can be produced by the dry method.
-Improves shelf life and can produce washed rice without sacrificing taste.
According to the Japan Rice Milling Industry Association, maintaining the quality even if stored for one month under summer conditions is one of the conditions for washing-free rice, but it is sufficiently clear.
・ Developed a fixed-volume feeder, enabling two types of powders to be fed while blending at a constant ratio, enabling continuous operation.
・ In order to circulate and use polished rice, we developed a mechanism that automatically replenishes new polished rice more than a certain amount to enable continuous operation.
・ Improve the mechanism of rice polishing and improve the separation and selection method of polished rice and polished rice in the subsequent process, and reduce the turbidity of the resulting polished rice with this device using conventional defatted rice bran. Can provide clean rice.
-Some turbidity observed in clean rice obtained using conventional defatted rice bran can be eliminated by using defatted rice cake from which pregelatinized white starch has been removed.
-A rice polishing apparatus as a system is provided by inventing a means for automatically mixing rice milling material and rice polishing material to maintain rice polishing efficiency and accuracy.
・ To recycle and use low-cost raw materials to reduce waste generation and to provide low-cost raw material costs.

The present invention is described in detail below.
<Grinding method, washing-free rice production method>
The present invention relates to a method, means, and a method for contacting a rice grain with a defatted rice bran (hereinafter referred to as “defatted rice bran” as an abrasive material). Invented the best abrasive to peel off the residue remaining on the surface of the rice grain. First, the outline of the present invention will be described.
1. A conventional polishing machine that does not use polished rice: The method of polishing the surface layer of rice grains used in sake rice, etc., utilizes the mutual polishing action between rice grains by strongly rubbing the rice grains together. This scrapes off the surface layer of the rice, and applies a pressure to the polished portion of the polished rice tank to agitate and give a polishing force. As a result, frictional heat and swarf are generated and adversely affected.Therefore, means for feeding cooling air from the center and sucking air and discharging swarf from the fine holes provided in the outer periphery of the polishing rice tank It has been.
2. The present invention using the polished rice material does not scrape the surface layer of the rice grain, but remains in the rice grain after milling ("Nuka" means the rice bran remaining on the surface of the milled rice in order to distinguish, emphasize In order to peel off the katakana notation. It is an act like wiping and polishing the surface of a rice grain with a cloth. For this purpose, it is only necessary to catch rice grains and polish them one by one, but it is extremely inefficient and economically impossible.
3. The conventional grinding method that does not use a rice polishing material, agitation is applied under pressure, and the friction between rice grains is utilized. (1) When a hole is made in the outer periphery of the rice polishing tank, It cannot be used because it is discharged, (2) If high-pressure friction is carried out without making a hole in the outer periphery of the polishing tank, heat cannot be removed and the rice will deteriorate, (3) The biggest problem is When using a polished rice material that is slightly softer than defatted rice grains such as defatted rice grains, the polished rice will act as a cushioning material and sufficient pressure will not be applied. (4) The shape of rice grains like rugby balls Even if it is applied, there is a problem that a certain posture is not maintained and a sufficient polishing action cannot be given.
4). It is not preferable to use a polished rice material that is harder than the rice grain, since it will damage the surface of the rice grain.
5. The present invention has been completed by developing the efficiency of processing a large amount of rice in a short time, and the method, structure, and polishing material for polishing and polishing the surface of each rice grain.
6). The present invention provides a method and apparatus for polishing rice milled rice, removing rice bran from the surface of the grain of rice, and providing clean rice that does not require washing during cooking, and a polishing material. is there. “Non-washed rice” is distributed in the market as such clean rice. In the present invention, the definition of the Japan Rice Milling Association is used as “no-wash rice”.

[Definition of no-wash rice]
According to the “Summary of the results of the study on the washing-free processing rice milling study” reported on October 26, 2001 by the washing-free processing rice milling study group established within the Japan Rice Milling Industry Association. According to this report, It is defined as follows as the definition of non-washed rice (wash-free rice).
(1) General definition of washing-free processed rice (wash-free rice) “Wash-free processed rice (wash-free rice) is the treatment of ordinary polished rice using a dedicated washing-free processing device and washing with rice during cooking. “Rice milled to the extent that it is not necessary.”
And 3. As a quality standard for non-washed rice (wash-free rice), “When cooking rice, it must be refined to such an extent that it does not require washing. Also, it should have the same taste as that of the polished rice before it is processed by the dedicated equipment. (1) The measurement method “Rice Washed Water Drying Solids Test Method: Postscript” determined by industrialization shall be measured in this case, and “Turbidity Test Method: Postscript” shall be used in combination. To do. ... (2) Turbidity according to a method based on the water washing turbidity test method is 70 ppm or less in 20 g of the sample. In addition, it is inevitable that a correction of about 5% occurs depending on the milled rice used as a raw material and environmental conditions. However, the turbidity must be 90 ppm or less in 20 g of the sample in the dry-type polished rice finishing method. Is described.
Further, as a separate sheet of this report, there is “About the rice washing water dried solids test method and the rice washing water turbidity test method” dated October 26, 2001 in the name of the Japan Rice Milling Association.
The washing water turbidity test method is as follows: 1. Put 20g of rice sample into Erlenmeyer flask, pour 200ml water, put rubber stopper and shake for 10 minutes with shaker (Note 1) (Note 2).
2. After shaking, the solution is taken into a beaker, from which 50 ml is further diluted 10 times (500 ml) with water.
3. After dilution, measure three times with a turbidimeter (Note 3), and use the average value as the measured value.
In the present invention, the turbidity is measured in accordance with this water washing turbidity test method. The turbidity is a numerical value indicated by “ppm”.

<Example of basic configuration>
Specific examples of the rice polishing method, the rice polishing apparatus, the rice polishing material, the washing-free rice production method, and the washing-free rice production apparatus will be described.
First, in order to ensure that the polishing material acts on each of a large number of rice grains, the two surfaces are opposed to each other with a narrow interval between the rice grains, and the surfaces are moved in one or different directions, It is possible to reliably polish the rice grains. The gap is suitably about 3 times the minor axis to the major axis of the rice grain. The grain is different depending on the varieties and cannot be defined unconditionally, but it can be about 2 mm to 20 mm.
The shape of the surface may be varied by changing the plane, curved surface, or interval.
In the case of a flat surface, the surface can be reciprocated and the polishing operation can be performed while moving the raw rice mill from the upper side to the downstream side. In the case of a curved surface, it can be constituted by a double cylinder by an outer cylinder and an inner cylinder. The polishing action is applied when the rice grains pass through the gap between the double cylinders. In the case of a cylinder, variations can be added to the operation, such as rotating either cylinder, rotating both with a difference in the number of rotations, or rotating them in reverse.
In either case, it is necessary for the rice grains to stay on the polishing surface. Therefore, it is necessary to process in batch or control the residence time (= polishing time) of the rice grains by narrowing the outlet side.

As a configuration of the polishing interval, a convex portion can be attached to the surface, and the gap between the tip of the convex portion and the opposing surface can be set to the above-described interval, and a pocket in which rice grains accumulate between the convex portion and the convex portion. Since the portion is formed and the pocket portion and the neck portion are alternately and continuously formed, the polishing is gradually advanced at each neck portion. Protrusions can be provided in scattered, dense, and striped shapes.
It is not preferable to form this protrusion with a bristle brush because powder such as a polished rice, that is, the polishing action is reduced between the bristles. Further, fine powder peeled off from the surface of the defatted rice bran or rice accumulates between the brushes, and if left untreated, it causes the growth of various germs and a strange odor, which is not appropriate in terms of hygiene and maintenance.

As a second technique, a technique for providing a polishing interval by the first protrusion is developed, and as a technique for processing a large amount of grains, rice grains are placed in a polishing rice tank so that the intervals are not interfered and arranged. The rod-like body is moved relative to each other so that the polishing action is exhibited when the rice grains are sandwiched in the gap where the rod-like body moving relatively moves closer.
When the rod-shaped bodies are moved relative to each other, when the opposing rod-shaped bodies pass each other, the polishing material and the rice grains are sandwiched in the polishing rice tank, and resistance is generated to provide a polishing action. In the case of fixing and rotating one of the rod-shaped bodies, in a polished rice vessel provided with a plurality of fixed rods arranged in a comb-like manner with a space between them and a rod body that moves through the space between the fixed rods, The polished rice and the polished rice material can be put into the polished rice container, and the polished rice and the polished rice material can be moved in the polished rice container while the resistance of the fixed bar is applied by the moving rod body.
Furthermore, by controlling the degree of opening and closing of the feeding means to the polished portion of the polished rice tank and the outlet of the polished rice tank, pressure can be applied to the rotationally stirred rice to enhance the polished rice action.
After such a rice polishing treatment, the polished rice and the polished rice material are separated by a sieve, and the separated polished rice material is recycled again, while the polished rice removes the fine powder and makes the surface clean. . Polished rice can be reused to reduce waste and lower costs.
Since the polishing action can be surely applied to each rice grain, the processed polished rice sufficiently satisfies the standard as non-washed rice. In the present invention, the treated rice is selectively used depending on the situation, such as polished rice, clean rice, and non-washed rice, but all indicate polished rice.
As the shape of the rod-shaped body, there are a round bar and a square bar. Since the round shape has a point-like interval, the polishing action is short and the efficiency is hardly increased. A square bar can have changes such as a rectangular cross-section, chamfering and dropping corners. Examples of the rod include those obtained by grinding a part of a round bar to form a flat surface (such as a substantially semicircular shape) and an elliptical cross section.

<Example of manufacturing process>
It demonstrates according to the process of this invention.
FIG. 1 shows a process diagram of the present invention. FIG. 2 is an overall configuration diagram of the polishing apparatus according to the embodiment of the present invention. FIG. 3 shows a polishing machine used in the embodiment of the present invention. FIG. 4 shows a metering feeder used in the embodiment of the present invention. FIG. 5 shows a polishing material mixing mechanism in which a new polishing rice material is added to the reused polishing rice material used in the embodiment of the present invention and the polishing material is circulated and supplied. FIG. 6 shows an enlarged view of the rice polishing processing section (circle A notation section) of the rice polishing machine of FIG.

The apparatus of the Example of this invention is demonstrated according to FIGS.
Raw rice milled rice A and defatted rice bran B, which is a polished rice material, are blended at a constant ratio by a quantitative feeder C and supplied to a hopper E of a polished rice tank through an elevator D. Recycled rice material that is put into the rice blasting tank F of the rice blasting machine from hopper E, passed through agitation rice polishing process, and reused as milled rice and waste fine powder J in the sorting sieve G to be used as a circular rice polishing material. Sorted into 3 of 糠 K. The refined rice is further refined by removing fine powder mixed in the refined rice through the fine powder removing sieve H and the wind fine powder remover L, and producing the purified polished rice in the clean rice storage tank M. Store. On the other hand, since the portion of the circulated rice bran K is pulverized in the blasting process, etc., it is discarded.
In this embodiment, the metering feeder is disposed on the lower side of the hopper of the polishing rice tank. The blended raw rice mill and defatted rice bran are mixed and fed into the polishing rice processing unit while being transported by an elevator or by being put into a hopper.

<Example of configuration of rice polishing equipment (washless rice production equipment)>
An apparatus configuration of an embodiment of the present invention is shown in FIG.
1 is an elevator that feeds and feeds raw rice and polished rice material from a quantitative feeder to a hopper 2 of a polishing rice tank, 2 is a hopper for charging a polishing rice tank, 3 is a hopper that supplies new polishing material, 4 is a sieve for selecting three kinds of polished rice, polished rice and waste fine powder. 5, 6 and 7 are 4 polished rice outlets, circulating abrasive outlets, waste abrasive outlets, 8 , 9 is a vibration motor for applying vibration to the sieves 4 and 28, 10 and 11 are sorting sieves for sorting the polished rice and polished rice of the sieve 4, 12 is a stirring bar, 13 is a resistor, 14 is a motor, 15 is The bottom of sieve 4, 16 is a net for catching fine powder, 17 is an air suction port for catching fine powder, 18 is a product tank containing clean rice, 19 is a raw rice milling tank, 20 is a milled rice discharge port for sieve, and 21 is Elevator receiving hopper that feeds polished rice, 22 is a vibratory feeder, 23 is a receiving hopper for the elevator 1, and 24 is used to send recycled abrasives 25 is an overflow hole for the recycled abrasive material, 26 is a motor for driving the elevators 1 and 34, 27 is a chute for feeding the raw rice mill, 28 is a sieve for removing fine powder, 29 is the lower end of the chute 27a and 24 Long hole for adjusting the vertical position, 30 is a chute for feeding newly polished rice, 31 is a screw for feeding, 32 is a shaft with screw 31 and stirring rod 12 attached, 33 is a polishing rice tank, 34 is storing polished rice Elevator to be fed into the tank 18, 35 is an adjustment plate for receiving the supplied polished rice, 36 is a quantitative supply machine, and 37 is a mixing adjusting mechanism for adjusting the additional replenishment amount of the recycled polished rice and new polished rice. .

The movement of rice is explained in the following order.
The polished rice fed from the raw rice mill tank is made a fixed amount of feed by a fixed amount feeder 36 via a chute 27, while the polished rice is also made a fixed amount of feed by this fixed amount feeder 36. Then, the polished rice and the polished rice material are mixed in a certain ratio, carried by the elevator 1 and put into the hopper 2 of the polished rice tank. The polished rice thrown into the hopper falls into the polishing rice tank 33 and is sequentially fed into the polishing rice processing section of the polishing rice tank 33 by the screw 31 in a dense form. While being stirred by a large number of comb-like stirrers 12 in the polishing unit, the movement is hindered by the resistor 13, and the distance between the stirrer and the resistor and the inner wall of the polishing tank and the tip of the stirrer Or the gap between the shaft surface and the tip of the resistance bar, while passing through the gap between the shaft surface and the tip of the resistance rod, undergoes a polishing action and moves from the hopper side toward the outlet.

  The polished rice that has exited the polishing tank enters the sieve 4 in the form of a mixture of the polished rice grains, the polished rice material, the worn polished rice material, and fine powder such as nuka peeled from the rice grains. In the sieve 4, the sieves 10, 11 provided in two stages are sieved into three types: rice grains, polished rice materials to be reused, and fine powder to be discarded, from the respective outlets 5, 6, 7. Released and sent to the next process. The sieve 4 is an oscillating sieve and is driven by a motor 8.

  Fine rice may still be mixed in the milled rice from the sieve 4, so the fine powder is removed through the sieve 28 and sent to the receiving hopper of the elevator 34 that sends the cleaned rice to the product tank 18. The polished rice that has been lifted up to the upper end by the elevator 34 is passed through a fine powder suction section having an air suction port 17 and a net 16 for catching fine powder provided in a zigzag before being put into the product tank 19. The finishing fine powder catch after the sieve 4 can be omitted or further added.

  On the other hand, the reused polished rice material discharged from the discharge port 6 of the sieve 4 is supplied to the quantitative supply device 36 via the chute 24. Since there is a part of the recycled abrasive material that is consumed and discarded by the polishing process, the insufficiently polished abrasive material is joined with the chute 30 connected to the hopper 3 containing the new abrasive material in the middle of the chute 24. Replenish. In addition, since the polishing ability of recycled polished rice materials decreases due to recycling, new polished rice materials are always replenished at a constant rate. The specific configuration can use the mechanism disclosed in Japanese Patent Laid-Open No. 2001-327881.

  In this way, this device example is a system that can be operated continuously, but since the fixed amount feeder for continuous operation with the polishing rice tank and the circulation mechanism of the polished rice material are devised, it is concrete. A simple structure will be described.

<Examples of research machines>
FIG. 3 shows the configuration of the polishing rice tank and FIG. 65 shows a partially enlarged configuration thereof.
The rice polishing tank 33 has a cylindrical outer diameter, and is provided with a rice mill receiving port 33a at the upper right side in FIG. 3 and an outlet 33b at the left end, excluding the rice polishing port side of the rice polishing tank, A large number of rod-like resistors 13 are installed in a comb-like shape on the inner wall of the rice polishing tank, and a rotating shaft 32 is inserted into the central shaft portion of the cylinder. The shaft has a screw 31 for feeding to the milled rice receiving port side. A large number of stirring rods are provided in a comb-like shape, and the resistor 13 and the stirring rod 12 enter a comb-like interval so as not to interfere with each other, so that the shaft can rotate.
The stirring rod 12 and the resistor 13 are provided so as to be inclined so that a carry output is applied to the exit side of the polished rice. The inclination angle is not particularly specified, but about 30 to 80 degrees is appropriate, and is set to about 60 degrees in this embodiment. The feeding force of the screw 31 is set so as to be larger than the carrying output by the resistor and the stirring rod, and is set so that pressure is applied to the polished rice to be polished.

In the apparatus of the present embodiment, the stirring rod 12 and the resistor 13 are elongated plate-like, and the corners are chamfered. In the circumferential direction, not only one but also a plurality of radials can be provided.
Referring to the partially enlarged view shown in FIG. 6, the regions where the polishing process mainly works are the gap Δd2 between the resistor 13 and the stirring rod 12, the gap Δd1 between the tip of the stirring rod 12 and the inner wall of the stirring tank, the resistor 13 is the gap Δd3 between the tip of the shaft 32 and the shaft 32, and the interval can be about 2 to 3 times the length of the rice grain from the width of the rice grain, which is the minimum interval through which the rice grain can pass. If a large number of rice grains are interposed in the gaps Δd1 to Δd3 several times, it is not possible to effectively apply frictional pressure to the rice grains, and the polishing material serves as a cushioning material and no polishing force is generated. Although the size of rice grains varies depending on the variety, it cannot be generally stated, but the size of rice grains in Japan is 4.9 mm to 6 mm in brown rice length and 1.6 to 2 times the width. Accordingly, the gaps Δd1 to Δd3 are set to about 2.5 mm to 20 mm. In this embodiment, it is set to about 6 mm.
The number of rotations of the shaft is preferably suppressed without causing an increase in the rice milling temperature during the polishing process so that the rice does not deteriorate. In particular, it is important to suppress the temperature to 54 ° C. or less at which starch begins to gelatinize. The rotational speed of the shaft is set so as to pay attention to the rice milling temperature, but it can be made lower than the rotational speed of a conventional grinding machine for grinding.

  The size of the polishing rice tank is 500 to 50 mm for the outer diameter of the cylinder, 485 to 5 mm for the rotating body, and the width of the rod-shaped body provided on the inner wall of the polishing vessel shell is 10 depending on the processing capacity and application. The width of the rod-shaped body provided on the rotating body is 5 to 50 mm, and the thickness of both the rod-shaped bodies can be set so as not to be damaged by the rotational resistance. The length of the cylinder can be designed according to the purpose of the polishing process. The longer the polishing speed, the longer the speed, and the slower the speed, the shorter. Since it depends on the angle of the rod-like body, it cannot be generally stated, but even a length of 100 cm can be designed for business use. Large size can be used for business use by rice shops, and small size can be used for home use. As for the small size, the ability to produce wash-free rice for one rice cooking can be achieved by manually rotating the shaft, and it is not particularly necessary to provide a sorting screen at the latter stage.

<Example of quantitative feeder>
An example of a metering feeder is shown in FIG.
An apparatus for supplying powder using a vibration feeder is known as disclosed in Japanese Patent Application Laid-Open No. 9-5148, but no apparatus capable of measuring and blending with the vibration feeder itself has been found. The present invention is devised so that two types of powders can be supplied quantitatively and continuously, and two types of powders are blended and supplied in a fixed ratio so that continuous operation is possible. Although this example pays attention to two types of raw rice milling and polished rice materials, the present invention is not limited to these substances, and can be applied to general granular materials. For example, salt and pepper, flour and sugar, shichimi and the like can be mentioned. Even in the case of two or more kinds such as Shichimi, it can be dealt with by increasing the raw material supply section.
The fixed-quantity feeder 36 includes a feed chute 27a for feeding the raw material continuing from the vibration feeder 22 and the milled rice feed chute 27 and a chute 24a for the polished rice feed chute 24. A long hole 29 is provided in the tip chutes 27a and 24a so that the position of the tip portion on the vibration feeder side can be adjusted up and down, and is fixed using the long hole and a screw. The tip of the tip chute 27a faces the flat bottom surface 22a of trough of the vibrating feeder at intervals [Delta] S _1, the distance [Delta] S ₁ is supplied intervals raw rice. The supply amount per unit time depends on the feeding speed of the vibration feeder and this interval ΔS ₁ .

On the other hand, the tip of the tip chute 24a faces the adjusting plate 35 provided from the bottom surface 22a upwardly spaced [Delta] S _2, this interval [Delta] S ₂ is supplied intervals Lab rice material. The adjusting plate 35 has a base end portion attached to the cage of the vibration feeder, and an upper surface formed flat, and is attached so as to be above the surface of the raw rice milling flow supplied from upstream. Instead of adjusting the tip chute 24a up and down, the adjustment plate 35 can be configured to be adjusted up and down. The recycle polishing material chute 24 is provided with an overflow hole 25 for allowing the polishing material to escape when the chute 24 is filled with the polishing material.
By adjusting the interval ΔS ₁ and the interval ΔS ₂ , it is possible to determine the blending ratio of the raw rice milled rice and the polished rice material, and in addition, the feed amount to the entire apparatus can be controlled by the feed speed of the vibration feeder. .
The raw rice mill and the polished rice are mixed to some extent on the vibratory feeder, but do not become a uniform mixed body, but are mixed in the next transfer step, and become a uniform body in the polishing rice tank. . For example, in this embodiment, the elevator uses a bucket to prevent separation of rice and polished rice from different specific gravities, and when it is discharged from the bucket to the hopper 2, a hitting plate is provided and scattered. The device is added.

<Recycling mechanism of polished rice>
Polished rice is used to remove the residue and gelatinized layer remaining in the surface grooves of rice grains, and uses abrasives that are smaller than rice grains and have a hardness that does not damage the surface of the rice grains, such as defatted rice cakes. . The polished rice is pressed and rubbed against the rice grains in the polished rice tank, and some of them are worn and damaged. We have developed a mechanism for continuous operation of the equipment by replenishing and recycling the newly-polished rice material, which is sufficiently reusable. Since the performance of polished rice gradually declines due to reuse, it needs to be updated a certain number of times. For this reason, Shinkenmai is constantly supplemented with a certain ratio to maintain the performance of the polished rice. In the example of the present apparatus, Shinken rice is set to be supplemented with 30 g for 1 kg of the minimum polished rice amount.
Since the entire circulation mechanism and the quantitative feeder have already been described, the replenishment mechanism for recycled rice and new polished rice will be described with reference to FIG.
The reusable polished rice material selected by the sieve 4 is sent to the chute 24 from the discharge port 5. In the middle of the chute 24, it joins with the chute 30 connected to the hopper 3 that stores the new polished rice material. A mixing adjustment mechanism for automatically adjusting the additional replenishment amount is provided at the junction. For example, the mixing adjustment mechanism 37 is provided with a rotation fulcrum 37 b on the shoot 30 merging position side, an adjustment valve body 37 a with the tip side freely positioned on the shoot 24 side, and an adjustment screw below the merging point of the chute 30. 37c is provided so that the tip of the screw protrudes to the inside of the chute 30 and comes into contact with the lower end side of the control valve body 37a so that the minimum opening can be adjusted.
With this structure, Shinken rice is always filled in the chute 30 and applies pressure to the regulating valve body 37a. On the other hand, the recycled polishing material from the discharge port 5 is supplied to the chute 24, and pressure is similarly applied to the control valve body 37a. The control valve body 37a is positioned at an angle where both pressures are balanced, and both the polished rice materials can be sent to the metering feeder 36. The tip of the screw 37c keeps the minimum opening of the control valve body 37a so that the pressure on the chute 24 side is not strong and the chute 30 side is not fully closed, and a certain amount of Shinken rice is always supplied. It is like that. With this structure, it is clear that the entire amount becomes Shinken rice at the start of operation of the apparatus.

<Kenmai materials>
The present invention is intended to finish the rice having a clean surface by polishing and removing the Nuka component remaining in the milling process for producing the commercially available milled rice and the paste layer on the surface of the rice grain endosperm. Is. Although the degree of cleaning can be adjusted according to the purpose, it can be cleaned to such an extent that washing rice is not required (the above-mentioned non-washing rice).
The reason for washing the rice before cooking rice is to remove the impurities, rice cake, and starch that tends to gelatinize the surface layer, and cook delicious rice. In the above-mentioned report of the washing-free rice polishing study group, the academic definition of washing-free rice (wash-free rice) is introduced as a reference as follows. “Definition of Ibaraki University / Professor Matsuda:“ Non-washed rice (non-washed rice) is a non-washed rice treatment machine that completely removes the gelatinized layer on the surface of the rice grains formed during the milling process. The rice grain has only the endosperm cell wall and non-gelatinized starch grains on the surface of the rice grain, and no other adhering matter is observed. ” "
Generally, in milled rice processing, the bran layer and germ are removed from the bran layer (5%), germ (3%), and endosperm (92%) that comprise brown rice, but the final yield for brown rice is around 91%. It has become. When cooking such polished rice, it is necessary to further remove the starch remaining on the surface of the rice grains and starch that is easily gelatinized. By the way, if this starch that is easy to gelatinize is left as it is, when the rice is heated, the starch in the surface layer of this rice grain becomes gelatinized, thereby preventing water penetration into the center of the rice grain and heat conduction, and the rice with a core. It is said that it is easy to become. For this reason, water washing and water immersion are required.

Wash-free rice, according to the scientific definition of reference, needs to remove such starch, and the industrial association sets the standard for wash-free rice according to the amount of rice-washed water dry matter and water-washed water turbidity. We are trying to provide rice that can produce delicious rice without having to.
Further, in detail, when the remaining state after the rice polishing is observed, a portion of the residue remains in the streak-like groove portion on the surface of the rice grain. Starch that is easy to gelatinize, other than strawberries, is released mainly from the starch layer that forms the outermost layer of endosperm. Naturally, this is also often present under the ridges of the streak-like groove. Each company's washing-free rice production technology is how to remove these koji and paste layers.

In the present invention, a polishing material is allowed to act on the groove portion on the surface of the rice grain so as to rub off the wrinkles and the paste powder layer. As such a polished rice material, “defatted rice cake” that easily absorbs oil and fat can also be used in the present invention. The polished rice material preferably has a size, corners and protrusions enough to enter the groove, and is preferably a material such that the corners and protrusions do not damage the surface of the rice. Further, these polished rice materials are preferably those which are harmless even if eaten from the viewpoint of safety.
The amount of the polished rice used is a mixing ratio, and the defatted rice bran is a volume ratio of 0.5 to 1.5 with respect to the polished rice. For example, the same amount is appropriate. The same volume of defatted rice cake is equivalent to about 450 g per liter (900 g) of rice, and the amount of defatted rice cake that is pulverized and discarded is 25 to 30 g. Therefore, in an Example, in the circulation utilization system of a defatted soot, it sets so that 30g or more of new degreased soot may be supplemented.

  The present inventor has studied rice bran originally derived from rice, particularly defatted rice bran, and its efficient use. On the surface of the polished rice from which most of the rice bran has been removed from the brown rice, there are oils and fats contained in the rice bran in addition to the aforementioned rice bran and paste layer. Since this oil and fat causes fine powders to adhere, there is a problem that when the surface of rice is polished with small powder particles, these powder particles are adsorbed and difficult to separate. In addition, abrasive particles that have been abraded and pulverized, flakes that have been peeled off, and starch derived from the paste powder layer are reattached, which may be difficult to remove even in a separation / separation step after the polishing process. It was clarified that this was one of the reasons why the water turbidity of the washed rice could not be lowered. The inventor pays attention to the defatted rice bran and finds out and uses the action of the defatted rice cake from which the fat and oil have been removed efficiently absorbs the fat and oil on the rice surface. The fats and oils on the surface of the rice also caused oxidative deterioration and the preservability of the polished rice was poor, but by removing this, the preservability of unwashed rice could be improved. Ordinary polished rice is considered to have a small change in taste when stored at room temperature for about one month, but in the present invention, the storage period could be extended to three months.

Since defatted rice bran is originally derived from rice, it is advantageous in that it can be used without any problem with the familiarity and hardness of rice grains. It is said that rice bran contains about 20% of fat and oil, and about 17% of that is degreased as crude oil. In the defatted rice bran, which is a product of rice bran using normal hexane, 29.2% dietary fiber (% by weight, hereinafter the same), 24.6% carbohydrate, 17.5% protein, 9.9% fat There is analysis data of ash content 12.1%, moisture 6.7%.
One example of a polished rice is this defatted rice bran. When defatted rice bran is used for the polishing process, it is used after adjusting the water content of polished rice to around 14.5%. Since the milled rice cracks when it becomes 13% or less, using an excessively dry defatted rice bran removes moisture from the rice and produces an adverse effect. When used as a polishing material in this state, clean rice has a turbidity of 90 or less, and satisfies the no-wash rice standard according to the dry method of the industry association.
In addition, as a result of research to achieve a water turbidity of 70 or less by the dry method, we focused on improving the polished rice in addition to the improvement in equipment, and by adding improvements to the defatted rice bran, It has been realized.

<Purified defatted lees>
It has been found that the saccharide contained in the defatted cocoon includes starch that has been heat-treated in the defatting step and thus pregelatinized. Since the pregelatinized starch is so-called gelatinized, it has strong adhesion, and when the rice grains are rubbed together in a form containing this, some of them adhere to the surface of the rice grains and are difficult to peel off, and other components also adhere to it. As a result of noticing that it becomes a difficult factor for lowering the turbidity of washed rice and developing a defatted rice bran from which the pregelatinized starch has been removed, the turbidity of washed rice could be reduced to 70 or less.
The pregelatinized starch is mixed in the defatted rice cake as fine white powdery powder, and can be separated by sieving with a sieve. It shall be expressed as defatted lees from which white pregelatinized starch has been removed. The defatted lees from which white pregelatinized starch has been removed has dietary fiber as one of the main components.

<Test Example 1>
The following rice polishing tank was used for the rice polishing treatment, and the washed rice turbidity of the clean rice obtained by sieving was measured.
1. Kenken tank: cylindrical shape with a diameter of 130 mm and a length of 600 mm.
・ Rotating speed 250 times / min. Polished rice amount 150kg / hour.
-The rotating shaft is equipped with a screw and a polishing rod body that is a stirring rod on the left and right.
-Comb-like resistance plate body is divided into four equal parts in a circle, and turbidity is compared with that equipped by arranging from the inlet to the outlet.
-As a polished rice material, refined defatted rice cake is a defatted rice cake from which pregelatinized starch (white) has been removed.
* Comparative test: A polished rice tank from which resistors were removed was used.
2. Kenkyu Water Turbidity Table 1 shows the results of measurements according to the method stipulated by the Japan Rice Milling Association.
The comparison data used the polished rice except the rice milling and the resistance plate.
As a result, a turbidity of 90 or less is sufficiently satisfied, and 74, 68, and 59 can be realized. The turbidity is clearly lowered when the resistance plate is provided.
The turbidity is expressed in ppm.

<Test Example 2>
Comparison of turbidity of polished rice using normal defatted rice bran and purified defatted rice bran Polishing conditions ・ Purified defatted cocoon is defatted cocoon from which pregelatinized starch (white) has been removed.
・ The turbidity measurement method is based on the rules of the Japan Rice Milling Association.
-The rice polishing apparatus adopts the rice polishing method proposed by the inventor of Patent No. 2988885.
Rotating drum, diameter 190mm, depth 300mm
Pressurized material (nut) 4kg Polished rice and polished rice 1 liter each Rotating speed 36 rev / min Polishing time 40 minutes * In order to eliminate the effect of increasing the polishing temperature, the tester of this mechanism was adopted. Since the rotation speed is low, there is almost no increase in the temperature of the rice polishing. Compared with the conventional device, the device that has less action to press the pregelatinized starch contained in the normal defatted rice bran against the rice surface is less likely to produce a difference. Tested.

2. The results are shown in Table 2. Turbidity decreased when the pregelatinized starch was removed, and 72, 64, and 67 could be realized. By using the polishing apparatus of the present invention, or the turbidity of the washing water for raising the purity of the raw rice mill is 70 or less, that is, the washing-free rice standard of the apparatus other than the dry washing-free rice can be satisfied.
Since the rice milling mechanism has a slow rotation speed, there is almost no temperature rise in the rice milling, so it is unlikely that the rice will be sticky. Usually, the defatted rice bran and the rice turbidity are thought to be due to adhesion of insoluble starch. .

  When the results of Test Example 1 and Test Example 2 are evaluated together, the turbidity decreases when using the refined defatted rice bran, and further using the apparatus of the present invention using the refined defatted rice bran as an abrasive material, It is clear that there is an effect.

<Test Example 3>
Rice surface oil and fat test The raw rice mill B used in Test Example 1 and this test-treated rice were sealed in a bag made of Japanese paper, and the surface of the bag was observed. In the raw rice B, oil oozed out on the surface after a few days, but no more was observed in the test-treated rice. Observation was continued for 1 week, but no change was observed.

<Reference example>
In the attached sheet of the report mentioned above, the name of the Japan Rice Milling Industry Association on October 26, 2001, “Regarding the method for testing water-washed and dried solids and the method for testing turbidity in washed rice”, The measurement data of the whiteness, turbidity, and dry solid content of the treated polished rice is attached, and is shown in Table 3 as a reference example. However, the model name is hidden.
Note 1: Three types of K, S, and T non-washed rice are non-washed rice by the wet method, and the turbidity of turbidity is measured without washing. The two types of R and KP non-washed rice are dry methods. Washed rice by, washed and measured twice.
When this reference example is compared with Test Examples 1 and 2, it can be seen that the present invention has a turbidity comparable to that of the conventional wet method.

Process chart Research equipment Ken rice machine Fixed quantity feeder Polished rice mixing mechanism Enlarged view of the rice processing department

Explanation of symbols

1 Elevator 2 Hopper (Kenmai, Rice)
3 Hopper (Shinken Rice)
4 Sieve (Rice rice, rice)
5 Rice discharge port 6 Recycled paddy material discharge port 7 Disposal laboratory rice material discharge port 8 Vibration motor 9 Vibration motor 10 Sieve (rice material, rice)
11 Sieve (Kenmai)
DESCRIPTION OF SYMBOLS 12 Stirring bar 13 Resistor 14 Motor 15 Bottom surface 16 Net 17 Air suction port 18 Product tank 19 Raw rice milling tank 20 Rice discharge port 21 Hopper 22 Vibrating feeder 23 Hopper 24 Chute (Rice polishing material)
25 Overflow hole 26 Motor 27 Chute (US)
28 Sieve (rice fine powder removal)
29 Long hole (up / down adjustment)
30 Chute (Kenmai)
31 Screw 32 Shaft 33 Polishing tank 34 Elevator 35 Adjusting plate (flow rate)
36 Adjustment screw (flow rate)
37 Mixing control valve

Claims (19)

While relatively moving between two objects arranged with an interval of 2 to 20 mm , rice grains and defatted rice bran are supplied to the two object intervals,
This is a polishing method in which the two objects are moved in one direction or in different directions, and the rice grains are friction-polished while allowing the defatted koji to act on each of a large number of rice grains. A polishing method characterized by not releasing . In a polishing rice tank, a method of polishing rice by rotating and stirring the degreased rice cake without separating it from the polishing rice tank while imparting rotational resistance to the polished rice and the defatted rice cake with a rotating body and a fixed body. A polishing method characterized in that the spacing between the rotating body and the fixed body is 2 to 20 mm, and a degreasing koji is applied to each of a large number of rice grains to polish the rice grains . Milled rice and defatted rice cake are put into a polishing rice vessel provided with a plurality of fixed rods arranged in a comb-like shape at intervals and a moving rod body that moves through the space between the fixed rods, and the defatted rice cake is polished. in Ken US vessel without separating the discharge from the container, the passing distance fixing rod to the moving rod is a 2 to 20 mm, and milled with a load resistance by a fixing rod to the moving rod on rice 2. The polishing method according to claim 1 , wherein the defatted rice bran is moved to cause the defatted rice bran to act on each of a large number of rice grains, thereby polishing the rice grains .   4. The method according to claim 2, wherein the rice is polished by applying pressure to the milled rice that is stirred by rotation by controlling the opening and closing degree of the feeding means to the polished portion of the polished rice tank and the outlet of the polished rice tank. Study method. The polished rice and the defatted rice bran separated after the polishing process are separated by a sieve, and the separated defatted rice bran is recycled again, while the polished rice removes fine powder. The polishing method described in 1.   A method for producing wash-free rice by applying the method according to claim 1. An apparatus for polishing rice mill by storing the milled rice and defatted rice cake in a polished rice vessel, and rotating and stirring the defatted rice cake with the polished rice without separating and discharging the defatted rice cake. A plurality of resistors fixed at intervals in the length direction, and a rod-shaped polishing rod arranged at a passing interval of 2 to 20 mm in the polishing vessel. A rice polishing apparatus comprising a rice polishing machine configured to move relative to each other. In the rice polishing apparatus equipped with the rice polishing machine according to claim 7, a quantitative feeder (A) for supplying a predetermined amount of raw rice polished rice supplied from the rice polishing stocker and defatted rice bran supplied from the rice polishing material stocker, through the hopper from the constant amount feeder accepts raw rice and defatted rice bran in KenYone container, resistor and Ken US rod by stirring Labs rice to the Research rice machine (B), discharged from該研US machine (B) and polished rice and defatted bran sieves for sorting separated into waste fines and polished rice and reuse defatted bran (C), by adding a new defatted rice bran to reuse defatted bran feeding the metering feeder Ken US material replenishing mechanism (D ), A polished rice tank provided with a polished rice tank (G) for containing polished rice with or without a sieve (E) and / or a fine powder suction machine (F) for removing fine powder . The metering feeder is a vibratory feeder equipped with a feed trough, a polished rice feed tube and a polished rice feed tube, and the feed amount is adjusted by changing the distance between the tip of both tubes and the receiving surface of the bottom surface of the feed trough. The receiving surface corresponding to the supply cylinder positioned on the downstream side is a quantitative supply machine having a supply amount adjusting mechanism provided so as to be positioned above the material flow surface supplied from the upstream side. The polishing apparatus according to claim 8. The rice polishing apparatus according to any one of claims 7 to 9 , wherein a rice polishing machine is used in which the rice polishing rod is fixed to a rotating shaft passing through the center of the rice polishing vessel.   The polishing apparatus according to any one of claims 7 to 9, wherein a polishing machine in which the polishing container is rotated and the polishing bar is fixed is used. The rice polishing apparatus according to any one of claims 7 to 11, wherein a rice polishing machine having a cylindrical shape, a polygonal shape, or a frustum shape and provided with a rice polishing container installed vertically, horizontally, or obliquely is used. A polished rice vessel shell provided with a resistor rod on the inlet and outlet and inner wall of the milled rice and defatted rice bran , and a polished rod provided on the rotary shaft provided on the central axis of the polished rice vessel shell It ’s a research rice tank,
In the polishing tank, one to several resistors are provided in a rod shape from the inner wall toward the center, and a plurality of resistors are provided in a comb-like shape at intervals in the longitudinal direction. 1 to several in the radial direction at the position of the rotating shaft opposite to the gap between the resistor rods provided in the shape, and use a rice polishing machine provided with a feed screw on the inlet side of the rotating shaft The polishing apparatus according to any one of claims 7 to 12, which is characterized by the following.   The rice polishing apparatus according to any one of claims 7 to 13, wherein the resistor and the rice polishing rod are provided to be inclined toward the discharge port side.   15. The rice polishing apparatus according to any one of claims 7 to 14, wherein the closest approach distance between the resistor and the rice polishing rod is set in a range of a minor axis to a double major axis of the rice grain.   The rice polishing apparatus according to any one of claims 7 to 15, wherein a cross section of the resistor and the polishing rod is a semicircle, an ellipse, or a chamfered rectangle.   The shape, installation interval, and / or rotation of the resistor rod and the rotating rod are controlled so that the temperature of the polished rice in the rice polishing machine is 54 ° C or lower. Research equipment. The polished rice material replenishment mechanism D includes a polished rice material circulation supply tube that sends a reused degreasing paddle from the sorting and separating sieve (C) to the quantitative feeder (A), and a new polished rice material supply tube from the polished rice material stocker. And a new blasted rice material supply tube is joined in the middle of the circulating supply tube, and at the merging point, a rotation fulcrum is provided at the merging position side of the new polished rice material supply tube, and a tip is provided at the edible material circulation supply tube side. The rice polishing apparatus according to any one of claims 8 to 17, further comprising a control valve provided with a side positioned freely and having a mechanism for adjusting a minimum opening of the control valve.   The apparatus which manufactures wash-free rice using the polishing apparatus in any one of Claims 7-18.

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