JP2002095981A - Production method of washing-free grain and apparatus for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing-free grain production method and apparatus capable of easily removing bran remaining in ultrafine grooves on the surface without scratching the grain surface, maintaining water content in the grain by an easy manner and improving the taste of the grain. SOLUTION: The washing-free grain production method comprises a step (a) of softening the surface by adding water to polished grain, a step (b) of adsorbing bran remaining on the grain surface in a granular material and removing the bran by mixing and stirring the polished grain with the granular material heated at 60 deg.C or higher, a step (c) of separating the polished grain and the granular material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for processing unrefined cereals which do not require washing before cooking by processing refined cereals, and in particular, without damaging the surface of the cereals.
The present invention relates to a method and an apparatus capable of easily removing bran adhering to a grain surface.

[0002]

2. Description of the Related Art At present, so-called non-washed rice which does not require a washing operation for cooking rice is in circulation. As a method of producing this unwashed rice, a method of removing bran from a polished rice milled by a rice mill using a polishing brush (for example, see Japanese Patent Publication No. 38-17391).
After adding a sticky substance for removing bran such as starch, bran, or sugar, the mixture is sorted and removed (for example,
No. 58-897 and Japanese Patent Publication No. 63-52535) and those in which polished rice polished by a rice mill is crushed in water in a very short time and then dehydrated and dried (for example, see JP-A-11-42056). )It has been known. The method for producing unwashed rice as described above removes the aleurone layer (paste layer) remaining in fine grooves and the like on the surface of rice grain that could not be removed by milling, and further removes starch, bran or sugar. Adhering with a sticky substance for bran removal or milling and removing in water,
Finished with no washed rice.

[0003]

However, after removing the polished milled rice with a polishing brush or adding a sticky substance for removing bran such as starch, bran or sugar, these are separated and removed. In the so-called dry-type non-washed rice manufacturing method, the aleurone layer (paste layer) remaining in the fine grooves on the rice grain surface, which could not be removed by milling, can be removed to some extent but cannot be completely removed. However, there is a problem that the bran odor cannot be removed.

[0004] On the other hand, when the polished rice milled by a rice mill is crushed in water in a very short time and then dewatered and dried, the aleurone layer remaining in the fine grooves and the like on the rice grain surface can be completely removed. If the nutrients contained in the rice grains are drained by milling, or if the wastewater after underwater milling is discharged to rivers, it is necessary to install a wastewater treatment facility,
There is a problem that equipment cost increases.

[0005] By the way, in Japanese Patent No. 2983010, 10 mesh or less, 50 parts by weight,
After grinding and polishing the polished rice by mixing and stirring 10 to 200 parts by weight of the crushed rice having a mesh size or more, after separating and removing the bran remaining on the polished rice surface, it is possible to separate the polished rice from the polished rice. A method for producing characteristically washed rice is disclosed. Thus, it is considered that the use of the crushed rice having the adjusted particle size allows the bran and the like remaining in the fine grooves and the like on the surface of the polished rice to be more completely removed even in the dry method. In other words, the washing and washing steps during rice cooking can be omitted, and therefore,
The loss of rice nutrients can be prevented, and the river can be prevented from being polluted by washing water.

[0006] However, in this method for producing unwashed rice, when mixing the polished rice and the crushed rice, a relatively high pressure is required to remove the residual bran. For this reason, in the mixer equipped with the stirring device, the partition wall covering the endosperm portion is cut by high pressure, and there is a risk that the endosperm portion may be damaged.

[0007] Further, at low temperatures such as winter, the surface of the polished rice is hardened, and unless excessive pressure is applied to the mixer, the bran of the polished rice cannot be efficiently removed, and the above-mentioned scratches are further formed. Cheap.

[0008] On the other hand, it is known that when brown rice is milled, the frictional heat accompanying the milled rice raises the rice temperature and lowers the water content. When non-washed rice is produced by the above method using such low-moisture polished rice after polishing, it is obvious that the finished non-washed rice has a further reduced water content.
There was a risk that the taste would be significantly reduced. In addition, the above publication describes that when the water content is lower than an appropriate value, the water content is adjusted by spraying fine mist-like water, but it is necessary to provide a new white rice humidifying device or the like. This causes a problem that the equipment cost increases.

The present invention has been made in view of the above problems,
A method for producing unwashed cereals that can easily remove bran remaining in fine grooves and the like on the surface without damaging the rice grain surface, and furthermore, can maintain the moisture of the rice grain and improve the taste, and its production method It is a technical object to provide a device.

[0010]

Means for Solving the Problems A first invention for solving the above-mentioned problems comprises: (a) a step of adding water to the milled cereals to soften the surface thereof; and (b) mixing the milled cereals with 60 ° C. Mixing and stirring with the heated granular material as described above, a step of removing and adsorbing the bran remaining on the grain surface of the milled cereal to the granular material,
(C) a step of separating the milled cereals from the particulate matter.

In the step (a), when water is added to the milled white cereals, the bran remaining on the surface of the white cereals of the white cereals rises with the water. Then, in the step (b), when the milled cereals in this state and the granules heated to 60 ° C. or more are mixed and stirred, when the milled cereals come into contact with the granules, the milled cereals are heated by the calories held by the granules. The bran adhering to the grain surface is pregelatinized to increase the viscosity at once. Similarly, a cross-link is formed between the bran and the granular material due to the enhanced affinity between the granular material having a pregelatinized surface and the pregelatinized bran, and the bran adheres to the granular material and is absorbed by the granular material Without damaging the grain surface
Bran can be easily removed from the grain surface. Then, in the step (c), the white cereals and the granular material are separated, and the non-washed cereals in which the moisture is retained and the taste is improved are finished.

If necessary, after the step (c), (d) mixing and stirring the obtained unwashed cereals and the granular material heated to 60 ° C. or higher; If the method further comprises the step of separating the refined grains and the granular material, it is possible to finish the unwashed rice with whiteness improved to 40% or more when using rice grains as the grains.

Further, if necessary, the post-process (c) can be provided with (f) a humidifying and milling process. If rice grains are used as the grains, unwashed rice with improved whiteness of 40% or more can be obtained. it can.

[0014] Even if the separation between the grains and the granules is insufficient, the granules may be edible flour such as crushed rice or crushed barley, other millet, leeches, buckwheat, sorghum, tapioca, etc. The use of crushed grains is safe to eat and is economical because it is common. If the granular material is adjusted to a particle size of 1.0 mm to 1.7 mm and the water content is adjusted to 5% or less, the bran present at the corners of the partition walls can be scraped out, and the moisture content of the granular material is low. Therefore, the bran on the surface of the grain having a high water content is easily adsorbed to the granular material.

On the other hand, milling means for removing the hulls of the grains and processing them into refined grains, moisture adding means for adding water to the obtained grains and softening the surface thereof,
Mixing and stirring means for mixing and stirring the granular material heated to at least ℃, and separation means for separating the white cereal and the granular material, since it is a non-washed cereal manufacturing apparatus equipped with, moisture is retained, Non-washed cereals with improved taste can be produced.

A second mixing / stirring means for mixing and stirring the obtained unwashed cereals and the granular material heated to 60 ° C. or higher, and a second mixing / stirring means for separating the unwashed cereal from the granular material, are provided at the subsequent stage of the separating means. Since the apparatus for producing unwashed cereals is further provided with two separation means, the use of rice grains as grains can produce unwashed rice with improved whiteness of 40% or more.

Since the apparatus for producing non-washed cereals is further provided with a wet-milling means for humidifying and polishing the non-washed cereals after the separation means, the surface of the grains is finished by the humidifying and polishing action. If rice grains are used, washed rice with improved whiteness of 40% or more can be produced.

Since the apparatus for producing unwashed cereals is provided with a means for drying cereal grains after drying the humidified and crushed unwashed grains by hot air drying, if rice grains are used as the grains, the humidifying and crushing means. Later, the rice grains can be refined to a water content of about 15% to improve the taste.

The used granular material is taken out from the separating means, and the granular material is heated and dried to mix and
Since it is a non-washed cereal manufacturing apparatus equipped with a granular material recycling means for conveying to a stirring means and reusing the granular material, it is possible to heat and dry the used granular material and supply it to the stirring and mixing means again. Thus, the supply of new granular materials is reduced, and it becomes economical. .

The water adding means includes a first screw cylinder disposed laterally, a first screw shaft having a stirring blade disposed in the first screw cylinder, and one end of the first screw cylinder. And a spray port for adding atomized water to the refined grains, wherein the mixing / stirring means is disposed below the water adding means, and a second screw cylinder having substantially the same dimensions as the first screw cylinder. And a second screw shaft provided with a stirring blade arranged in the second screw cylinder, and a granular material supply hopper arranged on the transport start end side of the second screw cylinder, wherein the separating means comprises: A screen cylinder provided below the mixing / stirring means and provided with a number of slits, an air supply port disposed near the upper surface of the screen cylinder, an outer cylinder covering the screen cylinder, and connected to a lower surface of the outer cylinder. Exhaust duct and Including a treated white rice discharge port disposed on the transport end side of the screen cylinder, the manufacturing apparatus of the non-washed cereals, it is possible to improve the whiteness of the non-washed cereals, increase the productivity, and The whole device can be made compact.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method and an apparatus for producing non-washed cereals of the present invention will be described using an example in which rice is used as a raw material cereal.

FIG. 1 is a schematic cross-sectional view of a rice grain surface when a brown rice is milled into polished rice by an existing milling machine as viewed under a microscope. FIG. 2 shows a method of humidifying the polished rice surface and mixing granules. FIG. 3 is a schematic cross-sectional view of a rice grain surface when the rice bran and the like are lifted up from the partition walls viewed with a microscope, and FIG. 3 is a schematic cross-sectional view of a non-washed rice with the bran removed from the partition walls viewed with a microscope. Reference numeral 1 in FIG.
Covered by Bran (including the aleurone layer) remains even after the rice milling process, or the bran powder peeled off by the milled rice is reattached to the outside of the partition wall 2 (hereinafter, the bran and the bran powder are removed). Together will be shown as bran 3). Then, if the bran 3 is peeled off from the partition 2, a non-washed rice in which the bran 3 is completely peeled off and removed from the surface of the polished rice (the partition 2) can be manufactured. The difficulty of peeling the bran 3 from the partition walls 2 depends on the moisture on the surface of the polished rice,
If the moisture content is high, the surface of the polished rice is softened and the bran 3 is easily peeled off. If the moisture content is low, the surface of the polished rice is hardened and the bran 3 is hardly peeled off.

Then, moisture is added to the surface of the polished rice to adhere moisture to the bran 3 remaining on the partition walls 2. Then, bran 3
Swells with moisture, and a gap is formed between the bran 3 and the partition wall 2 to float. The granular material 4 heated to a temperature of 60 ° C. or higher, preferably 60 ° C. to 200 ° C. is mixed with the polished rice. When crushed rice is used as the granular material 4, the temperature is preferably 60 ° C. or more, and more preferably 60 ° C. to 80 ° C. When the polished rice comes into contact with the granular material 4, the bran 3 is pregelatinized and adsorbed by the granular material 4 due to the amount of heat (greater than the gelatinization temperature) held by the granular material 4. Then, when the polished rice and the granular material 4 are agitated at a low pressure, the surface of the polished rice is polished by a light frictional action between particles of the polished rice and the granular material 4 (see FIG. 2).

The granular material 4 preferably has high heat retention, heat capacity, water absorbency and adhesiveness. If inedible metal spheres or ceramic particles are used, their surfaces are coated with starch. It is good to increase water absorption and tackiness. In addition, crushed rice and crushed barley as edible, other millet, millet, buckwheat, crushed grains such as Takasan,
Alternatively, if tapioca is used, it has high heat retention, water absorption and adhesiveness, and is safe to eat. Preferably, the granular material 4 is a starchy material such as pearl tapioca which is pregelatinized, dried and finished to a hardness of ² to 5 kgf / cm ² .

In the case where crushed rice is used as the granular material 4, for example, starch or flour extracted from crushed granules such as a shifter, or grains removed from a color sorter or crushed rice grains may be used. Adjusted to mm-1.7mm, moisture 5%
It is preferred to dry below. Further, it is preferable to use these granular materials by heating them with hot air at 60 to 90 ° C.

Then, when the polished rice and the granular material 4 are separated from each other, it is possible to finish the rice without washing with no bran 3 remaining on the partition walls 2 (FIG. 3).

Next, the manufacturing process of non-washed rice will be described with reference to FIGS. FIG. 4 is a process diagram showing one embodiment of the present invention, FIG. 5 is a process diagram showing another embodiment of the present invention, and FIG. 6 is an overall process diagram showing details of the present invention. 7 and 8 are process diagrams showing only the bran removal process B.

The manufacturing process of the non-washed rice shown in FIG. 4 and FIG.
The main part is composed of a rice milling step A in which three rice mills are connected and a rice bran removing step B including a water adding means 9, a stirring and mixing means 10 and a separating means 11.

The rice milling step A is composed of a first vertical rice mill 5, a second vertical rice mill 6, and a third vertical rice mill 7.
If one rice mill is provided, the raw brown rice is put into the first rice mill 5, and the second and third rice mills are successively milled, it is possible to finish, for example, polished rice with a yield of about 90%. The third rice milling machine 7 is connected to a frying machine 8 and communicates with the next rice bran removing step B. In the bran removal step B, the water adding means 9
Thus, water was added to the polished rice obtained in the polished rice process, and the granulated material was mixed with the polished rice to which the water was added by the stirring and mixing means 10 and stirred, and the polished rice was polished and polished by the separating means 11. The polished rice and used granules are separated.

The water adding means 9 has a structure in which a rotatable spiral rotator 13 is provided inside a cylindrical polished rice guiding cylinder 12.
An appropriate water adding device 17 including a solenoid valve 15 and a water pipe 16 is connected. Then, while the milled rice is supplied from the hopper 46, the spiral trochanter 1
3 is rotated to add water in the process of rolling the polished rice. It is preferable to add, for example, water of 3 to 5% of the rice grain weight by the water adding device 17.

The stirring and mixing means 10 includes a drum-shaped machine frame 18.
And a rotatable stirrer 19 as a main component,
One end of the machine frame 18 is connected to a milled rice supply gutter 20 communicated from the water adding means 9 and a granular material supply gutter 21 of the granular material conveyed by the conveyance means as appropriate. If, for example, air transport is used as the transport means, the cyclone 22 for separating the air stream is provided with the granular material supply trough 21.
On the other hand, the cyclone 22 is connected to a granular material discharge gutter 47 that branches off separately from the granular material supply gutter 21. The stirring device 19 is provided with a plurality of stirring blades 23, which are rotated by power of a motor or the like. The stirring blade 2
When 3 is rotated, the milled rice and the granular material are stirred and mixed in the machine frame 18, and the mixed grains are discharged from the discharge gutter 24 provided at the other end of the machine frame 18. If necessary, stirring and mixing means 10
A hot air supply means (not shown) for supplying hot air when mixing and stirring the milled rice and the granular material may be provided.

The separating means 11 may be any kind of sieving device capable of separating polished rice and granules, such as a roughing machine 26 having a sieving screen 25 stretched. Good. In addition, a vibrator 27 having an output shaft connected to an eccentric flywheel as shown in FIG. 6 may be provided so as to apply vibration to the roughing machine 26.

The polished rice obtained by the separating means 11 as described above is unwashed rice in which the bran 3 is removed from the fine grooves of the partition walls 2 as shown in FIG. 3, but further improves the whiteness of the unwashed rice. In order to increase productivity, the following configuration is required.

That is, in the embodiment shown in FIGS. 4 and 7, the second stirring and mixing means 28 and the second separating means 29 are further provided in the subsequent step of the separating means 11, whereby The rice bran remaining on the surface is completely peeled off and removed, and a glossy non-washed rice with whiteness improved to 40% or more can be produced.

Further, in the second embodiment shown in FIG. 5, if a wet milling means 30 for humidifying and milling the obtained milled rice is provided after the separating means 11 if necessary,
While adding 10% water, for example, 1.0 × 10 ⁴ Pa
(100 gf / cm ² ) A low pressure frictional action of about 100 gf finishes the rice grain surface, completely removes and removes the bran remaining on the rice grain surface, and can produce a glossy non-washed rice with whiteness improved to 40% or more. Reference numeral 43 denotes a water tank of the water adding means attached to the wet rice polishing means 30, reference numeral 44 denotes an electromagnetic valve, and reference numeral 45 denotes a water pipe. Then, in the subsequent step of the wet milling means 30, a milled rice drying means 31 is connected, and the milled rice is fed from the blower 37, for example, by hot air drying at 30 to 60 ° C.
Above, it is dried to about 15% of water to improve the taste.

In order to increase the productivity, an embodiment as shown in FIG. 6 may be applied.

That is, FIG. 6 shows a process in which a granular material recycling step is provided. In the subsequent stage of the separation means 11, a granular material takeoff gutter 32 and a milled rice takeout gutter 33 are provided. The means 34 is connected. In the granular material heating means 34, the granular material is dried by hot air of 60 to 200 ° C, and the moisture content is 5%.
Hereafter, it is finished to a particle size of 1.0 to 1.7 mm. When crushed rice is used as the granules, the granules are heated and dried by hot air at 60 to 100 ° C. Then, the granules are conveyed from the drying device 34 to the cyclone 22 by the air conveying means 35 and separated by the cyclone 22 in a gas stream. Then, the granules are supplied from the granule supply gutter 21 to the machine frame 18 and the granules are separated. Recycle.

The rear stage of the milled rice drying means 31 is connected to the next selection step via a fryer 38 (see FIG. 6). In the selection process, a commercially available rotary shifter 39 is provided, and after drying, non-washed rice whose water content has been adjusted is sieved. Then, if it is a certain reference particle size, it is discharged as a refined product from the refined product discharge gutter 42 and supplied to the next measuring and packaging process. Shifter fine particles that do not satisfy a certain reference particle size by the rotary shifter 39 are supplied to a pair of rolls 40 from a fine particle discharge trough 41 and pulverized to a particle size of 1.0 to 1.7 mm. This ground rice can be used as granules in the above-described bran removal step.

Hereinafter, the operation of the apparatus shown in FIG. 6 will be described.

The raw brown rice is put into the first rice mill 5 in the rice milling process, and is supplied to the second rice mill and the third rice mill sequentially, so that the rice bran on the surface is almost completely removed by the action of the rice trochanter (not shown). After being removed, the rice is finally polished to a yield of about 90%.

The polished rice in this state is put into the water adding means 9 via the elevator 8. That is, while adding the milled rice from the hopper 46, the spiral rotator 13 is rotated in the milled rice guide cylinder 12, and water is added in the process of rolling the milled rice. For example, water of 3 to 5% of the rice grain weight is added. In addition,
The time for passing the polished rice through the guide cylinder 12 is, for example, 1
When the time is about 5 seconds, moisture can be safely added to the polished rice without danger of cracking. The surface of the polished rice to which water has been added is slightly softened.

The milled rice, to which the addition of water has been completed, is immediately introduced into the stirring and mixing means 10 for stirring and mixing with the granular material. In the stirring and mixing means 10, the milled rice is heated to 60 to 80 ° C. by the granule drying device 34 and stirred and mixed with the granules finished to 5% or less of water, and the bran swelled with the water is converted into the granulated rice. And lifted up from the partition walls. Then, the surface of the rice grain is polished by the light frictional action between the particles of the polished rice and the granular material, and the bran is removed from each grain of the polished rice. The mixing ratio of milled rice and granules is
It is preferable to use 5 to 30 parts by weight of the granular material based on 100 parts by weight of the polished rice.

Next, the mixed grains of the polished rice and the granules are transferred to the separating means 11, where the polished rice and the granules are separated.
The rice is washed without rice bran 3 (Fig. 3).

Further, the polished rice is supplied to the wet polished rice means 30 and water is added to the polished rice at 2 to 10% of the weight of the rice grains, for example, at a low pressure of about 1.0 × 10 ⁴ Pa (100 gf / cm ² ). The surface of rice grain is finished by frictional action. The bran remaining on the rice grain surface is completely peeled off and removed, and a gloss-free washed rice with whiteness improved to about 40% can be produced. Next, the non-washed rice is supplied to the polished rice drying means 31 to reduce the water content to 15%.
When adjusted to about%, it is possible to finish unwashed rice with improved taste. The sewage discharged from the water adding means of the wet rice milling means 30 may be powdered and supplemented by a spray dryer as shown in FIG. 9 so as not to deteriorate the environment.

The spray dryer 49 shown in FIG.
The main part is composed of a funnel-shaped spray dryer chamber 50 and a cyclone 51. A supply pipe 52 for supplying sewage of the wet milling means 30 from the upper part of the chamber 50 is connected to the spray dryer chamber 50.
2 is provided with a spray nozzle 53 at the tip thereof, and a high-pressure pump 54 is provided on the path of the supply pipe 52 so that the waste water is
It is configured so that it can be supplied in the form of a mist into 0. The upper part of the chamber 50 is provided with a hot air chamber 55 so that hot air from a combustion burner 56 can be supplied. LP for combustion burner 56
A G (liquefied petroleum gas) supply pipe 57, an outside air intake pipe 58, and a combustion blower 59 are provided to control hot air temperature, and an air supply pipe 60 and an air supply fan 61 are provided to control the amount of air to the hot air chamber 55. Done. On the other hand, the lower end of the chamber 50 is connected to a cyclone 51 having an exhaust fan 63 via an exhaust duct 62, so that the airflow can be separated by the cyclone 51 and powdered dirt can be taken out of the machine. Also, if a suitable liquid concentrating device (not shown) is provided in front of the spray dryer device 49, LP
The fuel consumption of G is small and the powder can be efficiently formed.

The granular material separated by the separating means 11 can be recycled when supplied to the granular material heating means 34. That is, in the granular material heating means 34, 60 to 20
Hot air of 0 ° C is sent to the granules and dried to a moisture content of 5% or less,
It is again supplied to the stirring and mixing means 10. The following example confirmed that the same granular material can be recycled at least up to five times, and that the whiteness is improved by providing a wet milling step in a subsequent step.

[0047]

[Example] Raw material conditions: Ground rice (Koshihikari from Hiroshima in 2011) was used as a granular material. Whiteness 41.4%, Yield 90.5% Crushed rice Conditions: Particle size 1mm or more, moisture 2.4-4.9%, mixing ratio 20
%, Whiteness

[Table 1]

Further, if the finished non-washed rice is transferred to the rotary shifter 39 in the next step and selected carefully, if it has a certain standard particle size, it is discharged as a purified product from the purified product discharge gutter 42,
Shifter fine particles that do not satisfy a certain standard particle size are supplied to a pair of rolls 40 from a fine particle discharge trough 41 and are pulverized to a particle size of 1.0 to 1.7 mm. The ground rice can be used as granules in the bran removal step.

FIGS. 10 and 11 show a polished rice processing apparatus according to another embodiment of the present invention.

The milling rice processing apparatus 100 includes a vertical milling process A in which a grinding type milling unit 101 is provided at an upper portion and a friction type milling unit 102 is provided at a lower portion. 103, granular material processing section 104 and separation drying section 1
The main part is composed of the bran removing step B provided with the rice bran 05 (see FIG. 10).

In the rice polishing step A, when the raw brown rice is fed from the upper raw material inlet 106, the rice is milled while flowing down from the upper side to the lower side of the grinding type rice mill 101, and the resistance cover 1
Rice is excreted against 07. Next, the resistance lid 107
Is discharged to the supply port 109 of the friction milling unit 102 through the downflow gutter 108, and is milled while being raised from the lower side to the upper side of the friction milling unit 102. Then, the polished rice discharged against the resistance lid (not shown) of the friction type polished rice unit 102 has, for example, a 90% yield.
Can be finished to a degree of polished rice.

The milled rice that has been milled in the milling step A is supplied to the graining machine 142 from the discharge gutter 110 to be grain-lifted.
3 and is supplied to the bran removing device B. The milled rice supplied to the bran removal step B is processed by the wet processing section 103 and the granular processing section 1
04 and the separation / drying unit 105 in order to finish the polished rice from which the bran has been removed while leaving the umami component.

The wet processing section 103 includes a screw shaft 1 in a screw cylinder 111 provided horizontally at the top of the bran removing step B.
12 is connected to a supply port 113 provided at one end of the screw cylinder 111, and a supply pipe 114 extending upward is connected to the supply port 113 provided at one end of the screw cylinder 111, and a discharge port 11 provided at the other end thereof.
5 and the discharge cylinder 116 is hung down.

A supply screw blade 117 is provided on the supply start end side of the screw shaft 112, and a plurality of stirring blades 118 are provided on the other screw shaft 112. The supply cylinder 114 has a spray port 119 for adding atomized water to the raw rice to be charged. A pulley 120 attached to one end of the screw shaft 112 and a motor (not shown) are connected by a belt.

The granular material processing section 104 includes a wet processing section 103.
A screw cylinder 121 that is substantially the same as the screw cylinder 111 of the wet processing section 103 is provided horizontally below, and a screw shaft 122 is rotatably suspended in the screw cylinder 121. A supply port 123 is provided immediately below the discharge port 115 of the wet processing section 103, and the supply port 123 is provided with the discharge cylinder 1
16 and the discharge port 124
Is connected to the discharge port 124 and the discharge tube 125 is hung down.

In the same manner as described above, a supply screw blade 126 is provided on the transport start end side of the screw shaft 122, and a plurality of stirring blades 127 identical to the wet processing section 103 are provided on the other screw shaft 122. To wear. Further, a supply hopper 128 for the granular material is disposed on the transport start end side of the screw cylinder 121, and the hopper 128 is connected to the screw cylinder 121. A pulley 129 axially attached to one end of the screw shaft 122 and a motor (not shown) are connected by a belt.

Further, the separation / drying section 105 horizontally arranges a screen cylinder 130 having a number of slits below the granular material processing section 104, and has a rotating shaft 131 suspended in the screen cylinder 130. A supply port 132 is opened at the transport start end side of the screen cylinder 130, and the supply port 132 is connected to the discharge cylinder 125 of the granular material processing section 104. Further, a supply screw blade 133 is axially mounted on the transport start end side of the rotating shaft 131, and a plurality of arms 134 are provided radially at several other positions of the rotating shaft 131, and a plurality of stirring blades are provided by the arms 134. 135 is supported. Further, a pulley 136 axially attached to one end of the rotating shaft 131 and a motor (not shown) are connected by a belt.

An air supply port 137 is provided near the upper surface of the screen cylinder 130, and an air supply duct 138 is connected to the air supply port 137. On the other hand, an outer cylinder 139 that covers the screen cylinder 130 is provided. An exhaust duct 140 is connected near the bottom surface of the outer cylinder 139, and a treated white rice discharge port 141 is provided on the transport end side of the screen cylinder 130.

Next, the operation of the bran removing step B having the above configuration will be described.

In the wet processing section 103 of the bran removal step B, the raw rice polished in the polishing step A by the downflow gutter 143 is supplied in a fixed amount into the screw cylinder 111. The raw polished rice is sprayed from a spray port 119 facing the supply port 113, and after adding mist-like water of about 5% by weight of polished rice, is supplied by a supply screw blade 117 that rotates 500 times per minute. While being transported toward the transport end side, the stirring blade 1
Stirred by 18. By the stirring, the mist-like water uniformly adheres to the surface of the polished rice and softens the bran layer on the rice grain surface.

Next, in the granular material processing section 104, the polished rice supplied into the screw cylinder 121 of the granular material processing section 104 from the discharge port 115 of the wet processing section 103 through the discharge cylinder 116 is rotated at 600 rpm. The particles are conveyed while being stirred toward the end of conveyance by the supply screw blade 126 and the stirring blade 127. At this time, the granular material in the granular material supply hopper 128 is moved into the screw cylinder 121 by the supply screw blade 126. Supplied. The granular material is, for example, a starchy material such as tapioca, which is pregelatinized and dried to form a substantially spherical shape having a hardness of ^{2 to 5} kgf / cm ² and a uniform particle size. It is supplied at a high temperature of ℃ and mixed with polished rice. The mixing ratio is about 50% by weight (weight ratio) based on the polished rice.

The rice bran or the like adhering to the surface of the polished rice, which has absorbed and softened the water in the previous step, is pregelatinized immediately upon contact with the high-temperature granular material, is adsorbed and removed by the granular material, and does not re-attach to the rice grain surface. Further, at this time, an effect of lowering the temperature of the rice grain surface by the latent heat of evaporation is exerted. The pressure in the screw cylinder 121 is relatively low, about 20 gf / cm ^2, and no new bran is generated by the granular material.

In the separation / drying unit 105, the polished rice which has flowed down from the granular material processing unit 104 via the discharge tube 125 is supplied to the screen tube 130 of the separation / drying unit 105 in the final step, and is supplied at 280 revolutions per minute. It is transported to the transport end by the screw blade 133 and is stirred by the stirring blade 135. At this time, the slightly wet rice grain surface is dried by the wind of about 40 ° C. flowing at about 60 m ³ per minute from the air supply port 137, and at the same time, the separation from the granular material is easily performed.

The milled rice that has passed through the screen cylinder 130 is
While being discharged from the treated white rice outlet 141 to the outside of the machine, the particulate matter leaking from the slit of the screen cylinder 130 while being stirred is discharged together with the wind from the exhaust air duct 140, separated by a bag filter or the like, and then separated by a shifter or the like. It is used again as granules with a uniform particle size.

Pearl tapioca used as granules in the bran removal step is produced by the following steps.

1) A raw material and a large amount of water (normal temperature) are put into a screw conveyor and stirred while being conveyed, and the raw material is washed and peeled. 2) Put the cassava in a drum-shaped device, stir and crush to fine particle size. 3) The ground material is separated by a centrifugal separator having a net attached inside, and the starch milk separated outside the net is taken out. 4) Leave the starch milk in the water bath for 2-3 days to precipitate the starch. 5) The water in the water tank is removed, and the starch containing water is transferred to a flat-type drier having an iron plate (temperature is a temperature at which the iron plate can be lifted by bare feet) and dried by stirring manually. By the above steps, tapioca powder is commercialized. 6) To make tapioca pearl, add water to the dried starch until it becomes clay-like, and leave it for 10 to 12 hours. Thereafter, the starch that has absorbed water and the dried starch produced in the previous step are mixed and granulated in a granulator made of cloth like a hammock that moves left and right (granules and shapes are not uniform). 7) Put the granulated wet tapioca in a drum-shaped drier and heat the surface of tapioca with hot air of 70 to 90 ° C. Hard enough to collapse). 8) Put tapioca from the previous process into a vibrator (vibrator that moves back and forth) with a woven net on the top and an iron plate on the bottom,
Sort out. Here, the tapioca that has fallen out of the net becomes spherical by rolling on the lower iron plate. 9) The spherical tapioca produced in the previous step is transferred to a flat dryer at 40 to 50 ° C, and dried and stirred by human power to reduce the water content to 1%.
Dry to 0-15%. 10) Perform three sorts using a shifter (Micro:
(About 1 mm, small: about 3 mm, large: about 5 mm). 11) Measure the weight for each shape and pack it in a bag.

[0067]

As described above, according to the present invention, there are provided (a) a step of adding water to a refined cereal to soften its surface;
(B) mixing and stirring the milled cereal and the granular material heated to 60 ° C. or higher to adsorb and remove the bran remaining on the grain surface of the milled cereal, and (c) the milled cereal And a step of separating the granules from the milled cereals in step (a) by adding water to the milled cereals in step (a). Is mixed and agitated to adhere the bran to the granules, so that the bran is easily removed from the grain surface without damaging the grain surface, and the milled grains and the granules are separated in step (c). As a result, it is possible to finish the non-washed cereals with the moisture retained and the taste improved.

If necessary, after the step (c), (d) a step of mixing and stirring the non-washed grains and the granular material heated to 60 ° C. or higher; And a step of separating the granular material from the product, it is possible to finish unwashed rice having a whiteness improved to 40% or more when using rice grains as grains.

Further, if necessary, (f) a humidifying and milling step can be provided in a step subsequent to the step (c). If rice grains are used as grain, unwashed rice having improved whiteness to 40% or more can be obtained. it can.

Even if the separation between the grains and the granules is insufficient, the granules may be edible flour such as crushed rice, crushed barley, other millet, whiskey, buckwheat, Takasan, tapioca, etc. The use of crushed grains is safe to eat and is economical because it is common. If the granular material is adjusted to a particle size of 1.0 mm to 1.7 mm and the water content is adjusted to 5% or less, the bran present at the corners of the partition walls can be scraped out, and the moisture content of the granular material is low. Therefore, the bran on the surface of the grain having a high water content is easily adsorbed to the granular material.

On the other hand, milling means for removing the hulls of grains and processing them into refined grains, water adding means for adding moisture to the obtained refined grains to soften the surface thereof,
Mixing and stirring means for mixing and stirring the granular material heated to at least ℃, and separation means for separating the white cereal and the granular material, since it is a non-washed cereal manufacturing apparatus equipped with, moisture is retained, Non-washed cereals with improved taste can be produced.

A second mixing / stirring means for mixing and stirring the non-washed grains and the granular material heated to 60 ° C. or higher, and a second separating means for separating the non-washed grains and the granular material, after the separating means. Therefore, the use of rice grains as grains makes it possible to produce unwashed rice with improved whiteness of 40% or more.

Since the apparatus for producing non-washed cereals is further provided with a wet-milling means for humidifying and milling the white cereals after the separating means, the surface of the grains is finished by the humidifying and smelting action, and the rice grains are used as the grains. If used, non-washed rice with an improved whiteness of 40% or more can be produced.

Since the apparatus for producing non-washed cereals is provided with a cereal-drying means for drying the humidified and refined cereals in a hot air stream after the wet-milling means, when rice grains are used as the grains, Rice grains can be refined to a water content of about 15% to improve the taste.

The used granules are taken out from the separating means, and the granules are heated and dried to form the mixed
Since it is a non-washed cereal manufacturing apparatus equipped with a granular material recycling means for conveying to a stirring means and reusing the granular material, it is possible to heat and dry the used granular material and supply it to the stirring and mixing means again. Thus, the supply of new granular materials is reduced, and it becomes economical. .

The water adding means includes a first screw cylinder disposed laterally, a first screw shaft provided with a stirring blade disposed in the first screw cylinder, and one end of the first screw cylinder. And a spray port for adding atomized water to the refined grains, wherein the mixing / stirring means is disposed below the water adding means, and a second screw cylinder having substantially the same dimensions as the first screw cylinder. And a second screw shaft provided with a stirring blade arranged in the second screw cylinder, and a granular material supply hopper arranged on the transport start end side of the second screw cylinder, wherein the separating means comprises: A screen cylinder provided below the mixing / stirring means and provided with a number of slits, an air supply port disposed near the upper surface of the screen cylinder, an outer cylinder covering the screen cylinder, and connected to a lower surface of the outer cylinder. Exhaust duct and Including a treated white rice discharge port disposed on the transport end side of the screen cylinder, the manufacturing apparatus of the non-washed cereals, it is possible to improve the whiteness of the non-washed cereals, increase the productivity, and The whole device can be made compact.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view of a rice grain surface when a brown rice is processed into a polished rice by a microscope.

FIG. 2 is a schematic cross-sectional view of a rice grain surface observed with a microscope when the surface of polished rice is humidified and granules are mixed to allow bran to float up from a partition wall.

FIG. 3 is a schematic cross-sectional view of a non-washed rice from which bran has been removed from a partition wall as viewed with a microscope.

FIG. 4 is a process chart showing one embodiment of the present invention.

FIG. 5 is a process chart showing another embodiment of the present invention.

FIG. 6 is an overall process diagram showing details of the present invention.

FIG. 7 is a process diagram showing only a bran removal process.

FIG. 8 is a process diagram showing only a bran removal process.

FIG. 9 is a process diagram showing a spray dryer device.

FIG. 10 is a front view of a non-washed cereal production apparatus shown as another embodiment of the present invention.

FIG. 11 is a longitudinal sectional view showing an internal structure of a bran removing step of the non-washed cereal production apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Endosperm part 2 Partition wall 3 Bran 4 Granular material 5 1st milling machine 6 2nd milling machine 7 3rd milling machine 8 Frying machine 9 Water addition means 10 Stirring and mixing means 11 Separation means 12 Milling rice induction cylinder 13 Screw roller 14 Water tank 15 Solenoid valve 16 Water pipe 17 Water addition device 18 Machine frame 19 Stirrer 20 Milled rice supply gutter 21 Granular material supply gutter 22 Cyclone 23 Stirrer blade 24 Discharge gutter 25 Sieve net 26 Rough separator 27 Vibrator 28 Second stirring and mixing means 29 Separation means 30 Wet milling means 31 Refined rice drying means 32 Granular material taking-out gutter 33 Polished rice taking-out gutter 34 Granular material heating means 35 Air carrying means 36 Conveying pipe 37 Blower 38 Grain fryer 39 Rotary shifter 40 Roll 41 Fine grain taking-out gutter 42 Refined product extraction gutter 43 Water tank 44 Solenoid valve 45 Water pipe 46 Hopper 47 Crushed rice discharge gutter 48 Net 49 Sp Lad dryer 50 spray dryer chamber 51 cyclone 52 supply pipe 53 spray nozzle 54 high pressure pump 55 hot air chamber 56 combustion burner 57 supply pipe 58 outside air intake pipe 59 combustion blower 60 air supply pipe 61 air supply fan 62 discharge duct 63 exhaust fan 100 milled rice Processing device 101 Grinding milling unit 102 Friction milling unit 103 Wet processing unit 104 Granular material processing unit 105 Separation and drying unit 106 Raw material input port 107 Resistance lid 108 Down flow gutter 109 Supply port 110 Drain gutter 111 Screw cylinder 112 Screw shaft 113 Supply port 114 supply cylinder 115 discharge port 116 discharge cylinder 117 supply screw blade 118 stirring blade 119 spray port 120 pulley 121 screw cylinder 122 screw shaft 123 supply port 124 discharge port 125 discharge cylinder 126 supply Supply screw blade 127 Stirrer blade 128 Supply hopper for particulate matter 129 Pulley 130 Screen cylinder 131 Rotating shaft 132 Supply port 133 Supply screw blade 134 Arm 135 Stirrer blade 136 Pulley 137 Air supply port 138 Air supply duct 139 External cylinder 140 Air exhaust duct 141 Processed white rice outlet 142 Frying machine 143 Downstream gutter

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[Procedure amendment]

[Submission date] May 10, 2001 (2001.5.1
0)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

Patent application title: Method and apparatus for producing non-washed cereals

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for processing unrefined cereals which do not require washing before cooking by processing refined cereals, and in particular, without damaging the surface of the cereals.
The present invention relates to a method and an apparatus capable of easily removing bran adhering to a grain surface.

[0002]

2. Description of the Related Art At present, so-called non-washed rice which does not require a washing operation for cooking rice is in circulation. As a method of producing this unwashed rice, a method of removing bran from a polished rice milled by a rice mill using a polishing brush (for example, see Japanese Patent Publication No. 38-17391).
After adding a sticky substance for removing bran such as starch, bran, or sugar, the mixture is sorted and removed (for example,
No. 58-897 and Japanese Patent Publication No. 63-52535) and those in which polished rice polished by a rice mill is crushed in water in a very short time and then dehydrated and dried (for example, see JP-A-11-42056). )It has been known. The method for producing unwashed rice as described above removes the aleurone layer (paste layer) remaining in fine grooves and the like on the surface of rice grain that could not be removed by milling, and further removes starch, bran or sugar. Adhering with a sticky substance for bran removal or milling and removing in water,
Finished with no washed rice.

[0003]

However, after removing the polished milled rice with a polishing brush or adding a sticky substance for removing bran such as starch, bran or sugar, these are separated and removed. In the so-called dry-type non-washed rice manufacturing method, the aleurone layer (paste layer) remaining in the fine grooves on the rice grain surface, which could not be removed by milling, can be removed to some extent but cannot be completely removed. However, there is a problem that the bran odor cannot be removed.

[0004] On the other hand, when the polished rice milled by a rice mill is crushed in water in a very short time and then dewatered and dried, the aleurone layer remaining in the fine grooves and the like on the rice grain surface can be completely removed. If the nutrients contained in the rice grains are drained by milling, or if the wastewater after underwater milling is discharged to rivers, it is necessary to install a wastewater treatment facility,
There is a problem that equipment cost increases.

[0005] By the way, in Japanese Patent No. 2983010, 10 mesh or less, 50 parts by weight,
After grinding and polishing the polished rice by mixing and stirring 10 to 200 parts by weight of the crushed rice having a mesh size or more, after separating and removing the bran remaining on the polished rice surface, it is possible to separate the polished rice from the polished rice. A method for producing characteristically washed rice is disclosed. Thus, it is considered that the use of the crushed rice having the adjusted particle size allows the bran and the like remaining in the fine grooves and the like on the surface of the polished rice to be more completely removed even in the dry method. In other words, the washing and washing steps during rice cooking can be omitted, and therefore,
The loss of rice nutrients can be prevented, and the river can be prevented from being polluted by washing water.

[0006] However, in this method for producing unwashed rice, when mixing the polished rice and the crushed rice, a relatively high pressure is required to remove the residual bran. For this reason, in the mixer equipped with the stirring device, the partition wall covering the endosperm portion is cut by high pressure, and there is a risk that the endosperm portion may be damaged.

[0007] Further, at low temperatures such as winter, the surface of the polished rice is hardened, and unless excessive pressure is applied to the mixer, the bran of the polished rice cannot be efficiently removed, and the above-mentioned scratches are further formed. Cheap.

[0008] On the other hand, it is known that when brown rice is milled, the frictional heat accompanying the milled rice raises the rice temperature and lowers the water content. When non-washed rice is produced by the above method using such low-moisture polished rice after polishing, it is obvious that the finished non-washed rice has a further reduced water content.
There was a risk that the taste would be significantly reduced. In addition, the above publication describes that when the water content is lower than an appropriate value, the water content is adjusted by spraying fine mist-like water, but it is necessary to provide a new white rice humidifying device or the like. This causes a problem that the equipment cost increases.

The present invention has been made in view of the above problems,
A method for producing unwashed cereals that can easily remove bran remaining in fine grooves and the like on the surface without damaging the rice grain surface, and furthermore, can maintain the moisture of the rice grain and improve the taste, and its production method It is a technical object to provide a device.

[0010]

Means for Solving the Problems A first invention for solving the above-mentioned problems comprises: (a) a step of adding water to softened cereals to soften the surface thereof ; mm
Mixing and stirring the granules having a particle size of about 1.7 mm and heated to 60 ° C. or higher to adsorb and remove the bran remaining on the grain surface of the milled cereals by the granules; A technical step of providing a step of separating the white cereals and the particulate matter.

In the step (a), when water is added to the milled white cereals, the bran remaining on the surface of the white cereals of the white cereals rises with the water. Then, in step (b), the milled cereals in this state are prepared to a particle size of 1.0 mm to 1.7 mm.
Mixing and stirring the granular material heated to 60 ° C or higher may cause the granular material to come into contact with the bran in the corners of the septum of the milled grain .
At this time, the amount of heat possessed by the granular material causes the bran adhering to the grain surface (partition) of the milled cereal to be pregelatinized, and a state in which the tackiness is increased at a stretch. Similarly, a cross-link is formed between the bran and the granular material due to the enhanced affinity between the granular material having a pregelatinized surface and the pregelatinized bran, and the bran adheres to the granular material and is absorbed by the granular material Thus, the bran can be easily removed from the grain surface without damaging the grain surface. Then, in the step (c), the white cereals and the granular material are separated, and the non-washed cereals in which the moisture is retained and the taste is improved are finished.

If necessary, after the step (c), (d) the obtained unwashed cereals and a particle size of 1.0 mm to 1.7 mm may be added.
A step of mixing and stirring the granules were heated to 60 ° C. or more as prepared, (e) a step of separating and the granulate the purified white cereal, further comprising a, in the case of using rice grains as grain In addition, it is possible to finish unwashed rice with whiteness improved to 40% or more.

Further, if necessary, the post-process (c) can be provided with (f) a humidifying and milling process. If rice grains are used as the grains, unwashed rice with improved whiteness of 40% or more can be obtained. it can.

[0014] Even if the separation between the grains and the granules is insufficient, the granules may be edible flour such as crushed rice or crushed barley, other millet, leeches, buckwheat, sorghum, tapioca, etc. The use of crushed grains is safe to eat and is economical because it is common. If the water content of the granular material is adjusted to 5% or less , the moisture content of the granular material is low, so that the bran on the surface of the high-moisture grain is easily adsorbed to the granular material.

On the other hand, milling means for removing hulls of grains and processing them into refined grains, water adding means for adding water to the obtained refined grains to soften the surface thereof ,
Non-washed cereal comprising: mixing / stirring means for mixing / stirring granules prepared to a particle size of 1.0 mm to 1.7 mm and heated to 60 ° C. or higher, and separation means for separating milled grains and granules Since it is a manufacturing apparatus of the above, it is possible to manufacture non-washed cereals in which moisture is retained and taste is improved.

A second mixing / stirring means for mixing and stirring the obtained unwashed cereals and the granular material prepared to a particle size of 1.0 mm to 1.7 mm and heated to 60 ° C. or higher is provided at a stage subsequent to the separating means. And a second separation means for separating the non-washed cereals and the granular material, the non-washed cereal production apparatus further comprising: a non-washed rice having a whiteness improved to 40% or more by using rice grains as the grains. Can be manufactured.

Since the apparatus for producing non-washed cereals is further provided with a wet-milling means for humidifying and polishing non-washed cereals after the separation means, the surface of the grains is finished by the humidifying and polishing action, and If the rice grains are used, it is possible to produce unwashed rice with whiteness improved to 40% or more.

Since the apparatus for producing unwashed cereals is provided with a means for drying cereal grains after drying the humidified and crushed unwashed grains by hot air drying, if rice grains are used as the grains, the humidifying and crushing means. Later, the rice grains can be refined to a water content of about 15% to improve the taste.

The used granular material is taken out from the separating means, and the granular material is heated and dried to mix and
Since it is a non-washed cereal manufacturing apparatus equipped with a granular material recycling means for conveying to a stirring means and reusing the granular material, it is possible to heat and dry the used granular material and supply it to the stirring and mixing means again. Thus, the supply of new granular materials is reduced, and it becomes economical. .

The water adding means includes a first screw cylinder disposed laterally, a first screw shaft having a stirring blade disposed in the first screw cylinder, and one end of the first screw cylinder. And a spray port for adding atomized water to the refined grains, wherein the mixing / stirring means is disposed below the water adding means, and a second screw cylinder having substantially the same dimensions as the first screw cylinder. And a second screw shaft provided with a stirring blade arranged in the second screw cylinder, and a granular material supply hopper arranged on the transport start end side of the second screw cylinder, wherein the separating means comprises: A screen cylinder provided below the mixing / stirring means and provided with a number of slits, an air supply port disposed near the upper surface of the screen cylinder, an outer cylinder covering the screen cylinder, and connected to a lower surface of the outer cylinder. Exhaust duct and Including a treated white rice discharge port disposed on the transport end side of the screen cylinder, the manufacturing apparatus of the non-washed cereals, it is possible to improve the whiteness of the non-washed cereals, increase the productivity, and The whole device can be made compact.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method and an apparatus for producing non-washed cereals of the present invention will be described using an example in which rice is used as a raw material cereal.

FIG. 1 is a schematic cross-sectional view of a rice grain surface when a brown rice is milled into polished rice by an existing milling machine as viewed under a microscope. FIG. 2 shows a method of humidifying the polished rice surface and mixing granules. FIG. 3 is a schematic cross-sectional view of a rice grain surface when the rice bran and the like are lifted up from the partition walls viewed with a microscope, and FIG. 3 is a schematic cross-sectional view of a non-washed rice with the bran removed from the partition walls viewed with a microscope. Reference numeral 1 in FIG.
Covered by Bran (including the aleurone layer) remains even after the rice milling process, or the bran powder peeled off by the milled rice is reattached to the outside of the partition wall 2 (hereinafter, the bran and the bran powder are removed). Together will be shown as bran 3). Then, if the bran 3 is peeled off from the partition 2, a non-washed rice in which the bran 3 is completely peeled off and removed from the surface of the polished rice (the partition 2) can be manufactured. The difficulty of peeling the bran 3 from the partition walls 2 depends on the moisture on the surface of the polished rice,
If the moisture content is high, the surface of the polished rice is softened and the bran 3 is easily peeled off. If the moisture content is low, the surface of the polished rice is hardened and the bran 3 is hardly peeled off.

Then, moisture is added to the surface of the polished rice to adhere moisture to the bran 3 remaining on the partition walls 2. Then, bran 3
Swells with moisture, and a gap is formed between the bran 3 and the partition wall 2 to float. The granular material 4 heated to a temperature of 60 ° C. or higher, preferably 60 ° C. to 200 ° C. is mixed with the polished rice. When crushed rice is used as the granular material 4, the temperature is preferably 60 ° C. or more, and more preferably 60 ° C. to 80 ° C. When the polished rice comes into contact with the granular material 4, the bran 3 is pregelatinized and adsorbed by the granular material 4 due to the amount of heat (greater than the gelatinization temperature) held by the granular material 4. Then, when the polished rice and the granular material 4 are agitated at a low pressure, the surface of the polished rice is polished by a light frictional action between particles of the polished rice and the granular material 4 (see FIG. 2).

The granular material 4 preferably has high heat retention, heat capacity, water absorbency and adhesiveness. If inedible metal spheres or ceramic particles are used, their surfaces are coated with starch. It is good to increase water absorption and tackiness. In addition, crushed rice and crushed barley as edible, other millet, millet, buckwheat, crushed grains such as Takasan,
Alternatively, if tapioca is used, it has high heat retention, water absorption and adhesiveness, and is safe to eat. Preferably, the granular material 4 is a starchy material such as pearl tapioca which is pregelatinized, dried and finished to a hardness of ² to 5 kgf / cm ² .

In the case where crushed rice is used as the granular material 4, for example, starch or flour extracted from crushed granules such as a shifter, or grains removed from a color sorter or crushed rice grains may be used. Adjusted to mm-1.7mm, moisture 5%
It is preferred to dry below. Further, it is preferable to use these granular materials by heating them with hot air at 60 to 90 ° C.

Then, when the polished rice and the granular material 4 are separated from each other, it is possible to finish the rice without washing with no bran 3 remaining on the partition walls 2 (FIG. 3).

Next, the manufacturing process of non-washed rice will be described with reference to FIGS. FIG. 4 is a process diagram showing one embodiment of the present invention, FIG. 5 is a process diagram showing another embodiment of the present invention, and FIG. 6 is an overall process diagram showing details of the present invention. 7 and 8 are process diagrams showing only the bran removal process B.

The manufacturing process of the non-washed rice shown in FIG. 4 and FIG.
The main part is composed of a rice milling step A in which three rice mills are connected and a rice bran removing step B including a water adding means 9, a stirring and mixing means 10 and a separating means 11.

The rice milling step A is composed of a first vertical rice mill 5, a second vertical rice mill 6, and a third vertical rice mill 7.
If one rice mill is provided, the raw brown rice is put into the first rice mill 5, and the second and third rice mills are successively milled, it is possible to finish, for example, polished rice with a yield of about 90%. The third rice milling machine 7 is connected to a frying machine 8 and communicates with the next rice bran removing step B. In the bran removal step B, the water adding means 9
Thus, water was added to the polished rice obtained in the polished rice process, and the granulated material was mixed with the polished rice to which the water was added by the stirring and mixing means 10 and stirred, and the polished rice was polished and polished by the separating means 11. The polished rice and used granules are separated.

The water adding means 9 has a structure in which a rotatable spiral rotator 13 is provided inside a cylindrical polished rice guiding cylinder 12.
An appropriate water adding device 17 including a solenoid valve 15 and a water pipe 16 is connected. Then, while the milled rice is supplied from the hopper 46, the spiral trochanter 1
3 is rotated to add water in the process of rolling the polished rice. It is preferable to add, for example, water of 3 to 5% of the rice grain weight by the water adding device 17.

The stirring and mixing means 10 includes a drum-shaped machine frame 18.
And a rotatable stirrer 19 as a main component,
One end of the machine frame 18 is connected to a milled rice supply gutter 20 communicated from the water adding means 9 and a granular material supply gutter 21 of the granular material conveyed by the conveyance means. If, for example, air conveyance is used as the conveyance means, the cyclone 22 for separating the air stream is provided with the granular material supply trough 21.
On the other hand, the cyclone 22 is connected to a granular material discharge gutter 47 that branches off separately from the granular material supply gutter 21. The stirring device 19 is provided with a plurality of stirring blades 23, which are rotated by power of a motor or the like. The stirring blade 2
When 3 is rotated, the polished rice and the granular material are stirred and mixed in the machine frame 18, and the mixed grains are discharged from the discharge gutter 24 provided at the other end of the machine frame 18. If necessary, stirring and mixing means 10
A hot air supply means (not shown) for supplying hot air when mixing and stirring the milled rice and the granular material may be provided.

The separating means 11 may be any kind of sieving device capable of separating polished rice and granules, such as a roughing machine 26 having a sieving screen 25 stretched. Good. In addition, a vibrator 27 having an output shaft connected to an eccentric flywheel as shown in FIG. 6 may be provided so as to apply vibration to the roughing machine 26.

The polished rice obtained by the separating means 11 as described above is unwashed rice in which the bran 3 is removed from the fine grooves of the partition walls 2 as shown in FIG. 3, but further improves the whiteness of the unwashed rice. In order to increase productivity, the following configuration is required.

That is, in the embodiment shown in FIGS. 4 and 7, the second stirring and mixing means 28 and the second separating means 29 are further provided in the subsequent step of the separating means 11, whereby The rice bran remaining on the surface is completely peeled off and removed, and a glossy non-washed rice with whiteness improved to 40% or more can be produced.

Further, in the second embodiment shown in FIG. 5, if a wet milling means 30 for humidifying and milling the obtained milled rice is provided after the separating means 11 if necessary,
While adding 10% water, for example, 1.0 × 10 ⁴ Pa
(100 gf / cm ² ) A low pressure frictional action of about 100 gf finishes the rice grain surface, completely removes and removes the bran remaining on the rice grain surface, and can produce a glossy non-washed rice with whiteness improved to 40% or more. Reference numeral 43 denotes a water tank of the water adding means attached to the wet rice polishing means 30, reference numeral 44 denotes an electromagnetic valve, and reference numeral 45 denotes a water pipe. Then, in the subsequent step of the wet milling means 30, a milled rice drying means 31 is connected, and the milled rice is fed from the blower 37, for example, by hot air drying at 30 to 60 ° C.
Above, it is dried to about 15% of water to improve the taste.

In order to increase the productivity, an embodiment as shown in FIG. 6 may be applied.

That is, FIG. 6 shows a process in which a granular material recycling step is provided. In the subsequent stage of the separation means 11, a granular material takeoff gutter 32 and a milled rice takeout gutter 33 are provided. The means 34 is connected. In the granular material heating means 34, the granular material is dried by hot air of 60 to 200 ° C, and the moisture content is 5%.
Hereafter, it is finished to a particle size of 1.0 to 1.7 mm. When crushed rice is used as the granules, the granules are heated and dried by hot air at 60 to 100 ° C. Then, the granules are conveyed from the drying device 34 to the cyclone 22 by the air conveying means 35 and separated by the cyclone 22 in a gas stream. Then, the granules are supplied from the granule supply gutter 21 to the machine frame 18 and the granules are separated. Recycle.

The rear stage of the milled rice drying means 31 is connected to the next selection step via a fryer 38 (see FIG. 6). In the selection process, a commercially available rotary shifter 39 is provided, and after drying, non-washed rice whose water content has been adjusted is sieved. Then, if it is a certain reference particle size, it is discharged as a refined product from the refined product discharge gutter 42 and supplied to the next measuring and packaging process. Shifter fine particles that do not satisfy a certain reference particle size by the rotary shifter 39 are supplied to a pair of rolls 40 from a fine particle discharge trough 41 and pulverized to a particle size of 1.0 to 1.7 mm. This ground rice can be used as granules in the above-described bran removal step.

Hereinafter, the operation of the apparatus shown in FIG. 6 will be described.

The raw brown rice is put into the first rice mill 5 in the rice milling process, and is supplied to the second rice mill and the third rice mill sequentially, so that the rice bran on the surface is almost completely removed by the action of the rice trochanter (not shown). After being removed, the rice is finally polished to a yield of about 90%.

The polished rice in this state is put into the water adding means 9 via the elevator 8. That is, while adding the milled rice from the hopper 46 and rotating the screw rotator 13 in the milled rice guiding cylinder 12 to add water in the process of rolling the milled rice, the water adding device 17 For example, water of 3 to 5% of the rice grain weight is added. In addition,
The time for passing the polished rice through the guide cylinder 12 is, for example, 1
When the time is about 5 seconds, moisture can be safely added to the polished rice without danger of cracking. The surface of the polished rice to which water has been added is slightly softened.

The milled rice, to which the addition of water has been completed, is immediately introduced into the stirring and mixing means 10 for stirring and mixing with the granular material. In the stirring and mixing means 10, the milled rice is heated to 60 to 80 ° C. by the granule drying device 34 and stirred and mixed with the granules finished to 5% or less of water, and the bran swelled with the water is converted into the granulated rice. And lifted up from the partition walls. Then, the surface of the rice grain is polished by the light frictional action between the particles of the polished rice and the granular material, and the bran is removed from each grain of the polished rice. The mixing ratio of milled rice and granules is
It is preferable to use 5 to 30 parts by weight of the granular material based on 100 parts by weight of the polished rice.

Next, the mixed grains of the polished rice and the granules are transferred to the separating means 11, where the polished rice and the granules are separated.
The rice is washed without rice bran 3 (Fig. 3).

Further, the polished rice is supplied to the wet polished rice means 30 and water is added to the polished rice at 2 to 10% of the weight of the rice grains, for example, at a low pressure of about 1.0 × 10 ⁴ Pa (100 gf / cm ² ). The surface of rice grain is finished by frictional action. The bran remaining on the rice grain surface is completely peeled off and removed, and a gloss-free washed rice with whiteness improved to about 40% can be produced. Next, the non-washed rice is supplied to the polished rice drying means 31 to reduce the water content to 15%.
When adjusted to about%, it is possible to finish unwashed rice with improved taste. The sewage discharged from the water adding means of the wet rice milling means 30 may be powdered and supplemented by a spray dryer as shown in FIG. 9 so as not to deteriorate the environment.

The spray dryer 49 shown in FIG.
The main part is composed of a funnel-shaped spray dryer chamber 50 and a cyclone 51. A supply pipe 52 for supplying sewage of the wet milling means 30 from the upper part of the chamber 50 is connected to the spray dryer chamber 50.
2 is provided with a spray nozzle 53 at the tip thereof, and a high-pressure pump 54 is provided on the path of the supply pipe 52 so that the waste water is
It is configured so that it can be supplied in the form of a mist into 0. The upper part of the chamber 50 is provided with a hot air chamber 55 so that hot air from a combustion burner 56 can be supplied. LP for combustion burner 56
A G (liquefied petroleum gas) supply pipe 57, an outside air intake pipe 58, and a combustion blower 59 are provided to control hot air temperature, and an air supply pipe 60 and an air supply fan 61 are provided to control the amount of air to the hot air chamber 55. Done. On the other hand, the lower end of the chamber 50 is connected to a cyclone 51 having an exhaust fan 63 via an exhaust duct 62, so that the airflow can be separated by the cyclone 51 and powdered dirt can be taken out of the machine. Also, if a suitable liquid concentrating device (not shown) is provided in front of the spray dryer device 49, LP
The fuel consumption of G is small and the powder can be efficiently formed.

The granular material separated by the separating means 11 can be recycled when supplied to the granular material heating means 34. That is, in the granular material heating means 34, 60 to 20
Hot air of 0 ° C is sent to the granules and dried to a moisture content of 5% or less,
It is again supplied to the stirring and mixing means 10. The following example confirmed that the same granular material can be recycled at least up to five times, and that the whiteness is improved by providing a wet milling step in a subsequent step.

[0047]

[Example] Raw material conditions: Ground rice (Koshihikari from Hiroshima in 2011) was used as a granular material. Whiteness 41.4%, Yield 90.5% Crushed rice Conditions: Particle size 1mm or more, moisture 2.4-4.9%, mixing ratio 20
%, Whiteness

[Table 1]

Further, if the finished non-washed rice is transferred to the rotary shifter 39 in the next step and selected carefully, if it has a certain standard particle size, it is discharged as a purified product from the purified product discharge gutter 42,
Shifter fine particles that do not satisfy a certain standard particle size are supplied to a pair of rolls 40 from a fine particle discharge trough 41 and are pulverized to a particle size of 1.0 to 1.7 mm. The ground rice can be used as granules in the bran removal step.

FIGS. 10 and 11 show a polished rice processing apparatus according to another embodiment of the present invention.

The milling rice processing apparatus 100 includes a vertical milling process A in which a grinding type milling unit 101 is provided at an upper portion and a friction type milling unit 102 is provided at a lower portion. 103, granular material processing section 104 and separation drying section 1
The main part is composed of the bran removing step B provided with the rice bran 05 (see FIG. 10).

In the rice polishing step A, when the raw brown rice is fed from the upper raw material inlet 106, the rice is milled while flowing down from the upper side to the lower side of the grinding type rice mill 101, and the resistance cover 1
Rice is excreted against 07. Next, the resistance lid 107
Is discharged to the supply port 109 of the friction milling unit 102 through the downflow gutter 108, and is milled while being raised from the lower side to the upper side of the friction milling unit 102. Then, the polished rice discharged against the resistance lid (not shown) of the friction type polished rice unit 102 has, for example, a 90% yield.
Can be finished to a degree of polished rice.

The milled rice that has been milled in the milling step A is supplied to the graining machine 142 from the discharge gutter 110 to be grain-lifted.
3 and is supplied to the bran removing device B. The milled rice supplied to the bran removal step B is processed by the wet processing section 103 and the granular processing section 1
04 and the separation / drying unit 105 in order to finish the polished rice from which the bran has been removed while leaving the umami component.

The wet processing section 103 includes a screw shaft 1 in a screw cylinder 111 provided horizontally at the top of the bran removing step B.
12 is connected to a supply port 113 provided at one end of the screw cylinder 111, and a supply pipe 114 extending upward is connected to the supply port 113 provided at one end of the screw cylinder 111, and a discharge port 11 provided at the other end thereof.
5 and the discharge cylinder 116 is hung down.

A supply screw blade 117 is provided on the supply start end side of the screw shaft 112, and a plurality of stirring blades 118 are provided on the other screw shaft 112. The supply cylinder 114 has a spray port 119 for adding atomized water to the raw rice to be charged. A pulley 120 attached to one end of the screw shaft 112 and a motor (not shown) are connected by a belt.

The granular material processing section 104 includes a wet processing section 103.
A screw cylinder 121 that is substantially the same as the screw cylinder 111 of the wet processing section 103 is provided horizontally below, and a screw shaft 122 is rotatably suspended in the screw cylinder 121. A supply port 123 is provided immediately below the discharge port 115 of the wet processing section 103, and the supply port 123 is provided with the discharge cylinder 1
16 and the discharge port 124
Is connected to the discharge port 124 and the discharge tube 125 is hung down.

In the same manner as described above, a supply screw blade 126 is provided on the transport start end side of the screw shaft 122, and a plurality of stirring blades 127 identical to the wet processing section 103 are provided on the other screw shaft 122. To wear. Further, a supply hopper 128 for the granular material is disposed on the transport start end side of the screw cylinder 121, and the hopper 128 is connected to the screw cylinder 121. A pulley 129 axially attached to one end of the screw shaft 122 and a motor (not shown) are connected by a belt.

Further, the separation / drying section 105 horizontally arranges a screen cylinder 130 having a number of slits below the granular material processing section 104, and has a rotating shaft 131 suspended in the screen cylinder 130. A supply port 132 is opened at the transport start end side of the screen cylinder 130, and the supply port 132 is connected to the discharge cylinder 125 of the granular material processing section 104. Further, a supply screw blade 133 is axially mounted on the transport start end side of the rotating shaft 131, and a plurality of arms 134 are provided radially at several other positions of the rotating shaft 131, and a plurality of stirring blades are provided by the arms 134. 135 is supported. Further, a pulley 136 axially attached to one end of the rotating shaft 131 and a motor (not shown) are connected by a belt.

An air supply port 137 is provided near the upper surface of the screen cylinder 130, and an air supply duct 138 is connected to the air supply port 137. On the other hand, an outer cylinder 139 that covers the screen cylinder 130 is provided. An exhaust duct 140 is connected near the bottom surface of the outer cylinder 139, and a treated white rice discharge port 141 is provided on the transport end side of the screen cylinder 130.

Next, the operation of the bran removing step B having the above configuration will be described.

In the wet processing section 103 of the bran removal step B, the raw rice polished in the polishing step A by the downflow gutter 143 is supplied in a fixed amount into the screw cylinder 111. The raw polished rice is sprayed from a spray port 119 facing the supply port 113, and after adding mist-like water of about 5% by weight of polished rice, is supplied by a supply screw blade 117 that rotates 500 times per minute. While being transported toward the transport end side, the stirring blade 1
Stirred by 18. By the stirring, the mist-like water uniformly adheres to the surface of the polished rice and softens the bran layer on the rice grain surface.

Next, in the granular material processing section 104, the polished rice supplied into the screw cylinder 121 of the granular material processing section 104 from the discharge port 115 of the wet processing section 103 through the discharge cylinder 116 is rotated at 600 rpm. The particles are conveyed while being stirred toward the end of conveyance by the supply screw blade 126 and the stirring blade 127. At this time, the granular material in the granular material supply hopper 128 is moved into the screw cylinder 121 by the supply screw blade 126. Supplied. The granular material is, for example, a starchy material such as tapioca, which is pregelatinized and dried to form a substantially spherical shape having a hardness of ^{2 to 5} kgf / cm ² and a uniform particle size. It is supplied at a high temperature of ℃ and mixed with polished rice. The mixing ratio is about 50% by weight (weight ratio) based on the polished rice.

The rice bran or the like adhering to the surface of the polished rice, which has absorbed and softened the water in the previous step, is pregelatinized immediately upon contact with the high-temperature granular material, is adsorbed and removed by the granular material, and does not re-attach to the rice grain surface. Further, at this time, an effect of lowering the temperature of the rice grain surface by the latent heat of evaporation is exerted. The pressure in the screw cylinder 121 is relatively low, about 20 gf / cm ^2, and no new bran is generated by the granular material.

In the separation / drying unit 105, the polished rice which has flowed down from the granular material processing unit 104 via the discharge tube 125 is supplied to the screen tube 130 of the separation / drying unit 105 in the final step, and is supplied at 280 revolutions per minute. It is transported to the transport end by the screw blade 133 and is stirred by the stirring blade 135. At this time, the slightly wet rice grain surface is dried by the wind of about 40 ° C. flowing at about 60 m ³ per minute from the air supply port 137, and at the same time, the separation from the granular material is easily performed.

The milled rice that has passed through the screen cylinder 130 is
While being discharged from the treated white rice outlet 141 to the outside of the machine, the particulate matter leaking from the slit of the screen cylinder 130 while being stirred is discharged together with the wind from the exhaust air duct 140, separated by a bag filter or the like, and then separated by a shifter or the like. It is used again as granules with a uniform particle size.

Pearl tapioca used as granules in the bran removal step is produced by the following steps.

1) A raw material and a large amount of water (normal temperature) are put into a screw conveyor and stirred while being conveyed, and the raw material is washed and peeled. 2) Put the cassava in a drum-shaped device, stir and crush to fine particle size. 3) The ground material is separated by a centrifugal separator having a net attached inside, and the starch milk separated outside the net is taken out. 4) Leave the starch milk in the water bath for 2-3 days to precipitate the starch. 5) The water in the water tank is removed, and the starch containing water is transferred to a flat-type drier having an iron plate (temperature is a temperature at which the iron plate can be lifted by bare feet) and dried by stirring manually. By the above steps, tapioca powder is commercialized. 6) To make tapioca pearl, add water to the dried starch until it becomes clay-like, and leave it for 10 to 12 hours. Thereafter, the starch that has absorbed water and the dried starch produced in the previous step are mixed and granulated in a granulator made of cloth like a hammock that moves left and right (granules and shapes are not uniform). 7) Put the granulated wet tapioca in a drum-shaped drier and heat the surface of tapioca with hot air of 70 to 90 ° C. Hard enough to collapse). 8) Put tapioca from the previous process into a vibrator (vibrator that moves back and forth) with a woven net on the top and an iron plate on the bottom,
Sort out. Here, the tapioca that has fallen out of the net becomes spherical by rolling on the lower iron plate. 9) The spherical tapioca produced in the previous step is transferred to a flat dryer at 40 to 50 ° C, and dried and stirred by human power to reduce the water content to 1%.
Dry to 0-15%. 10) Perform three sorts using a shifter (Micro:
(About 1 mm, small: about 3 mm, large: about 5 mm). 11) Measure the weight for each shape and pack it in a bag.

[0067]

As described above, according to the present invention, there are provided (a) a step of adding water to a refined cereal to soften its surface;
(B) preparing the milled cereal with a grain size of 1.0 mm to 1.7 mm,
Mixing and stirring the granular material heated to at least ℃, and adsorbing and removing the bran remaining on the surface of the grain of the refined cereal, and (c) separating the refined cereal from the granular material In step (a), water is added to the milled cereals that have been milled, and in step (b), the milled cereals in this state are prepared to a particle size of 1.0 mm to 1.7 mm and heated to 60 ° C. or more. Mix and stir with the granulated material, and exist in the corners of the septum of the milled grain
Since the bran is adhered to the granular material, the bran is easily removed from the grain surface without damaging the grain surface,
In the step (c), the refined cereals and the granular material are separated from each other, so that the cereals can be finished with moisture retention and improved taste.

Further, if necessary, in the subsequent step of the step (c), (d) non-washed cereals and a particle size of 1.0 mm to 1.7 mm are prepared.
A step of mixing and stirring the granules were heated to 60 ° C. or higher Te, (e) a step of separating and the granules wireless washed cereal, further comprising a white when using rice grains as grain Degree 4
It is possible to finish unwashed rice improved to 0% or more.

Further, if necessary, (f) a humidifying and milling step can be provided in a step subsequent to the step (c). If rice grains are used as grain, unwashed rice having improved whiteness to 40% or more can be obtained. it can.

Even if the separation between the grains and the granules is insufficient, the granules may be edible flour such as crushed rice, crushed barley, other millet, whiskey, buckwheat, Takasan, tapioca, etc. The use of crushed grains is safe to eat and is economical because it is common. If the water content of the granular material is adjusted to 5% or less , the moisture content of the granular material is low, so that the bran on the surface of the high-moisture grain is easily adsorbed to the granular material.

On the other hand, milling means for removing hulls of grains and processing them into refined grains, water adding means for adding water to the obtained refined grains to soften the surface thereof ,
Non-washed cereal comprising: mixing / stirring means for mixing / stirring granules prepared to a particle size of 1.0 mm to 1.7 mm and heated to 60 ° C. or higher, and separation means for separating milled grains and granules Since it is a manufacturing apparatus of the above, it is possible to manufacture non-washed cereals in which moisture is retained and taste is improved.

In the subsequent stage of the separating means, the non-washed cereals and 1.0 m
a second mixing / stirring means for mixing / stirring the granular material prepared to have a particle size of m to 1.7 mm and heated to 60 ° C. or higher, and a second separating means for separating the non-washed cereal and the granular material, Since the apparatus is a non-washed cereal manufacturing apparatus provided with rice grains, it is possible to manufacture unwashed rice with whiteness improved to 40% or more by using rice grains.

Since the apparatus for producing non-washed cereals is further provided with a wet-milling means for humidifying and milling the white cereals after the separating means, the surface of the grains is finished by the humidifying and smelting action, and the rice grains are used as the grains. If used, non-washed rice with an improved whiteness of 40% or more can be produced.

Since the apparatus for producing non-washed cereals is provided with a cereal-drying means for drying the humidified and refined cereals in a hot air stream after the wet-milling means, when rice grains are used as the grains, Rice grains can be refined to a water content of about 15% to improve the taste.

The used granules are taken out from the separating means, and the granules are heated and dried to form the mixed
Since it is a non-washed cereal manufacturing apparatus equipped with a granular material recycling means for conveying to a stirring means and reusing the granular material, it is possible to heat and dry the used granular material and supply it to the stirring and mixing means again. Thus, the supply of new granular materials is reduced, and it becomes economical. .

The water adding means includes a first screw cylinder disposed laterally, a first screw shaft provided with a stirring blade disposed in the first screw cylinder, and one end of the first screw cylinder. And a spray port for adding atomized water to the refined grains, wherein the mixing / stirring means is disposed below the water adding means, and a second screw cylinder having substantially the same dimensions as the first screw cylinder. And a second screw shaft provided with a stirring blade arranged in the second screw cylinder, and a granular material supply hopper arranged on the transport start end side of the second screw cylinder, wherein the separating means comprises: A screen cylinder provided below the mixing / stirring means and provided with a number of slits, an air supply port disposed near the upper surface of the screen cylinder, an outer cylinder covering the screen cylinder, and connected to a lower surface of the outer cylinder. Exhaust duct and Including a treated white rice discharge port disposed on the transport end side of the screen cylinder, the manufacturing apparatus of the non-washed cereals, it is possible to improve the whiteness of the non-washed cereals, increase the productivity, and The whole device can be made compact.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view of a rice grain surface when a brown rice is processed into a polished rice by a microscope.

FIG. 2 is a schematic cross-sectional view of a rice grain surface observed with a microscope when the surface of polished rice is humidified and granules are mixed to allow bran to float up from a partition wall.

FIG. 3 is a schematic cross-sectional view of a non-washed rice from which bran has been removed from a partition wall as viewed with a microscope.

FIG. 4 is a process chart showing one embodiment of the present invention.

FIG. 5 is a process chart showing another embodiment of the present invention.

FIG. 6 is an overall process diagram showing details of the present invention.

FIG. 7 is a process diagram showing only a bran removal process.

FIG. 8 is a process diagram showing only a bran removal process.

FIG. 9 is a process diagram showing a spray dryer device.

FIG. 10 is a front view of a non-washed cereal production apparatus shown as another embodiment of the present invention.

FIG. 11 is a longitudinal sectional view showing an internal structure of a bran removing step of the non-washed cereal production apparatus.

[Description of Signs] 1 Endosperm part 2 Partition wall 3 Bran 4 Granular material 5 First rice mill 6 Second rice mill 7 Third rice mill 8 Frying machine 9 Water addition means 10 Stirring and mixing means 11 Separation means 12 Milled rice induction cylinder Reference Signs List 13 spiral rotator 14 water tank 15 solenoid valve 16 water pipe 17 water addition device 18 machine frame 19 stirrer 20 milled rice supply gutter 21 granular material supply gutter 22 cyclone 23 stirring blade 24 discharge gutter 25 sieve net 26 roughing machine 27 vibrator 28 Second stirring and mixing means 29 Separation means 30 Wet rice milling means 31 Polished rice drying means 32 Granular material discharge trough 33 Polished rice discharge trough 34 Granular material heating means 35 Air transport means 36 Transport pipe 37 Blower 38 Grain mill 39 Rotary shifter 40 Roll 41 Fine-grain extraction gutter 42 Refined product extraction gutter 43 Water tank 44 Solenoid valve 45 Water pipe 46 Hopper 47 Crushed rice discharge gutter 8 Net 49 Spray Dryer Device 50 Spray Dryer Chamber 51 Cyclone 52 Supply Pipe 53 Spray Nozzle 54 High Pressure Pump 55 Hot Air Chamber 56 Combustion Burner 57 Supply Pipe 58 External Air Intake Pipe 59 Combustion Blower 60 Air Supply Pipe 61 Air Supply Fan 62 Discharge Duct 63 Exhaust Air Fan 100 Polishing rice processing device 101 Grinding rice polishing unit 102 Friction rice polishing unit 103 Wet processing unit 104 Granular material processing unit 105 Separation / drying unit 106 Raw material input port 107 Resistance lid 108 Downflow gutter 109 Supply port 110 Drain gutter 111 Screw cylinder 112 Screw Shaft 113 Supply port 114 Supply cylinder 115 Discharge port 116 Discharge cylinder 117 Supply screw blade 118 Stirrer blade 119 Spray port 120 Pulley 121 Screw cylinder 122 Screw shaft 123 Supply port 124 Discharge port 125 Outer cylinder 126 Supply screw blade 127 Stirring blade 128 Granular material supply hopper 129 Pulley 130 Screen cylinder 131 Rotating shaft 132 Supply port 133 Supply screw blade 134 Arm 135 Stirrer blade 136 Pulley 137 Air supply port 138 Air supply duct 139 Outer cylinder 140 Exhaust air duct 141 Treated white rice outlet 142 Frying machine 143 Downstream gutter

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor, Masahiro Kono 2-30, Saijo Nishihonmachi, Higashihiroshima City, Hiroshima Prefecture Inside Satake Works Co., Ltd. (72) Inventor Akihiko Kato 2-30, Saijo Nishihonmachi, Higashihiroshima City, Hiroshima Prefecture F-term in Satake Corporation (reference) 4D043 AA03 AA04 BB05 BD01 DA03 DA06 DB04 DB08 DE32 DH33 DL05 JC05

Claims (14)

[Claims] 1. A method for producing unwashed cereals, comprising:
(A) a step of softening the surface by adding water to the milled cereal; and (b) mixing and stirring the milled cereal and the granular material heated to 60 ° C. or more, and remains on the milled cereal grain surface. A method for producing unwashed cereals, comprising: a step of adsorbing and removing bran from granules; and (c) a step of separating the refined cereals from the granules. 2. Optionally, after the step (c), (d) mixing and stirring the unwashed cereal obtained in claim 1 and the granular material heated to 60 ° C. or higher, 2. The method for producing non-washed cereals according to claim 1, further comprising: (e) a step of separating the non-washed cereals from granules. 3. The method for producing unwashed cereals according to claim 1, further comprising (f) a humidifying and milling step, if necessary, after the step (c). 4. The method for producing non-washed cereals according to claim 1, wherein the granules are made of edible crushed cereals. 5. The method according to claim 1, 2 or 3, wherein the granular material is any of pulverized barley, millet, leeches, buckwheat, and Takagi. 6. The method according to claim 1, wherein the granular material is pearl tapioca. 7. The production of non-washed cereals according to any one of claims 1 to 6, wherein the granular material has a particle size of 1.0 mm to 1.7 mm and a water content of 5% or less. Method. 8. The method for producing unwashed cereals according to claim 1, wherein in the step (a), water of 3 to 5% by weight is added to the refined cereals. 9. Milling means for removing hulls of grains and processing them into refined grains, water adding means for adding water to the obtained grains and softening the surface thereof, and heating the grains to a temperature of 60 ° C. or more. An apparatus for producing unwashed cereals, comprising: mixing / stirring means for mixing / stirring heated granules; and separating means for separating milled grains and granules. 10. The non-washed cereal obtained in claim 9 and a granular material heated to 60 ° C. or more are mixed and mixed in a stage subsequent to the separation means.
10. The apparatus according to claim 9, further comprising a second mixing / stirring means for stirring, and a second separating means for separating the non-washed cereals and the granular material.
An apparatus for producing cereals without washing as described above. 11. The apparatus for producing non-washed cereals according to claim 9, further comprising wet milling means for humidifying and polishing non-washed grains after the separating means. 12. The apparatus for producing non-washed cereals according to claim 11, further comprising, after the wet-milling means, white cereal drying means for drying the humidified and polished non-washed cereals with hot air. 13. A particulate material recycling means for taking out used particulate matter from the separation means, heating and drying the particulate matter, conveying the particulate matter to the mixing / stirring means, and reusing the particulate matter. An apparatus for producing cereals without washing according to any one of claims 9 to 12. 14. The water adding means includes a first screw cylinder disposed laterally, a first screw shaft having a stirring blade disposed in the first screw cylinder, and one end of the first screw cylinder. And a spray port for adding atomized water to the refined grains, wherein the mixing / stirring means is disposed below the water adding means and has a second screw cylinder having substantially the same dimensions as the first screw cylinder. And a second screw shaft provided with a stirring blade disposed in the second screw cylinder, and a granular material supply hopper disposed on the transport start end side of the second screw cylinder. A screen cylinder provided below the mixing / stirring means and provided with a number of slits, an air supply port disposed near the upper surface of the screen cylinder, an outer cylinder covering the screen cylinder, and connected to a lower surface of the outer cylinder. Exhaust duct and said And a processing rice discharge port disposed on the transfer terminal end side of the clean cylinder, no wash cereals manufacturing apparatus according to claim 9.