JPH1176841A - Vacuum conditioning treatment method and apparatus of grain stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive reduction of time for conditioning treatment, simplification of work and work saving by realizing a single step conditioning treatment of a grain stock, further contrive reduction of cost for an apparatus, compact construction of the apparatus and reduction of installation area by constituting a conditioning tank as a single set and suppress propagation of bacteria and microbes to the grain stock. SOLUTION: About6% of additional water is added as water for a grain stock having a self-water content of about 9 wt.% and is mixed, and agitation at a vacuum degree of 20-40 Torr is effected and then atmospheric pressure is instantly restored. The additional water is made to penetrate the grain stock quickly on account of this rapid pressure change, and the grain stock thus obtained is allowed to sit for 5-10 hr as to obtain the grain stock having a water content of 14-17% by a single step. By such a method, the grain stock is conditioned so as to be suited for flour milling work. An agitation mechanism such as a screw conveyor or the like is provided in a vacuum water adding treatment apparatus making an inflow system and an outflow system of the grain stock communicate with each other, and further an additional water supply tank, vacuum generator. vacuum relieving device and conditioning tank are connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for tempering a grain raw material, which is carried out when performing various food processings such as a milling process on a raw material such as wheat, soybean, rice, buckwheat, corn and the like. And a heat treatment apparatus used in this processing method.

[0002]

[Prior art] ▲ Milling processing of cereal raw materials such as wheat, soybeans, rice, buckwheat, corn, noodle processing, and ingredients ([Prior art] milling processing of cereal raw materials such as wheat, soybeans, rice, buckwheat, corn, Noodle processing, ingredient (oil) extraction processing,
When performing food processing such as press processing, it is necessary to refine these cereal raw materials to a physical state suitable for various food processing in order to obtain good processing results. For example, in the milling process of raw wheat (hereinafter referred to as “raw wheat”), foreign substances, contaminants, and damaged particles such as damaged grains are carefully selected (separated) and removed in a preceding screening step, and normal raw wheat grains are removed. When water is added to the selected raw wheat grains, tempered in a tank for a certain period of time to infiltrate the moisture into the endosperm, and make the outer skin tough, and then processed with a roll machine. It is necessary to improve the separation of the endosperm and the bran and the grinding of the endosperm. [0003] For the refining of raw wheat, moisture,
It is important to adjust the temperature and time, and tempering the raw wheat to a higher moisture level than natural moisture without heating at room temperature, or heat the raw wheat to a higher moisture level than natural moisture. Conditioning has been conventionally performed.

One example of the conventional raw wheat refining method and apparatus will be described with reference to FIG. 1. First, raw wheat is put into each raw wheat tank 1 for each production area and type and temporarily stored. After flowing into the weighing machine 4 through the upper hopper 3 and appropriately measuring the predetermined weight of the raw wheat according to the place of production and the type according to the purpose of milling, the raw wheat is filled into the mixer 5 and mixed so as to have a predetermined ratio. Then, the mixed raw wheat is put in the lower hopper 6
, And sequentially introduced into the first screening machine 8, the second screening machine 9, the third screening machine 10, and the fourth screening machine 11 by the air transport machine 7,
Completely remove contamination inhibitors such as foreign matter, contaminants, and damaged grains contained in raw wheat.

The above-mentioned selected raw wheat contains about 9% (weight) of self-moisture and is conveyed by an air transporter 12 into a primary water-supplying device (with a raw material flow detection) 13.
Here, water equivalent to a water content of 4% of the raw wheat is added as primary water to the raw wheat from the water tank 14, mixed uniformly with the raw wheat by the conveyor 15, and introduced into the primary refining tank 16. The following first stage tempering treatment of raw wheat is performed.

That is, the raw wheat is left in the primary refining tank 16 at room temperature for about 24 hours at atmospheric pressure for about 24 hours to start impregnation of the above-mentioned 4% primary water into the raw wheat. However, if left at atmospheric pressure for about 24 hours, the raw wheat cannot be sufficiently impregnated with water, and cannot penetrate water into the endosperm tissue, soften the granular material, and toughen the outer skin.

The raw wheat subjected to the first-stage refining treatment is introduced into a weighing machine 19 via an upper hopper 18 by a feeder 17 and weighed, mixed by a mixer 20 and passed through a lower hopper 21. The water is conveyed by a pneumatic transporter 22 into a secondary water addition device (with a raw material flow rate detection) 23,
In the secondary water metering tank 23, water equivalent to 2% water content of the raw wheat is added again from the water tank 24 to the raw wheat as secondary water, mixed uniformly with the raw wheat by the conveyor 25, and the secondary refining tank 26 And the following second stage refining treatment of raw wheat.

That is, the raw wheat introduced into the secondary refining tank 26 is left again at room temperature under atmospheric pressure for about 12 hours,
The above-mentioned 2% secondary water is impregnated into the raw wheat to infiltrate the water into the endosperm tissue, soften the grain, and toughen the outer skin, and add about 14 to 17% of the water as the whole raw wheat. Then, the separation of the endosperm and the bran of the raw wheat and the grinding of the endosperm are improved, and the physical state optimal for the dressing is adjusted. Then, the tempered raw wheat is pneumatically transported through the hopper 28 by the quantitative feeder 27. The raw wheat is conveyed to a roll crusher 30 by a mill 29 to perform the milling of known raw wheat.

[0009] However, according to the above-mentioned conventional raw wheat refining method and refining apparatus, the refining of raw wheat is performed by:
Since the first stage refining process (24 hours) and the second stage refining process (12 hours) are performed in two stages, the refining process time is long (36 hours), and the work is There was a drawback that nighttime and maintenance work became troublesome, and the efficiency of refining the raw wheat was poor.

[0010] Further, since the primary refining tank 16 and the secondary refining tank 26 and their related equipment (pneumatic transporters, watering equipment, water tanks, conveyors, etc.) are required, the equipment is manufactured. In addition to the disadvantage that the cost is increased and the initial and running costs of the apparatus are high, there is also the disadvantage that the entire apparatus is enlarged, the installation area of the apparatus is increased, and the space economy is not good.

Further, as described above, the refining treatment for raw wheat is performed in two stages, resulting in a long processing time, and the time for the raw wheat to stay in the refining tank containing water becomes long. Bacteria and microorganisms may propagate in the quality tank and on the surface of raw wheat, causing problems in hygiene.

[0012]

SUMMARY OF THE INVENTION An object of the present invention is to provide wheat,
The first and second-stage refining treatments of soybeans, rice, buckwheat, corn and other cereal raw materials, which are performed when food processing such as milling is performed on these cereal raw materials. Rather than performing the process in a long time over two stages as in the process, by performing it in one stage without any trouble, the refining process time is reduced to half or less compared to the conventional case, And to simplify the processing work and save labor.

Another object of the present invention is to perform the above-described refining treatment of the cereal raw material using a conventional refining tank and a secondary refining tank (including related equipment and the like). Rather than using two sets, the refining process can be performed with only one set without any trouble, thereby reducing the initial and running costs of the equipment, reducing the overall size of the equipment, and increasing the installation area of the equipment. The idea is to make it smaller and improve the space economy.

[0014] Still another object of the present invention is to perform a refining treatment on raw wheat in one stage and in a short time to shorten the time for which raw wheat stays in water and stays there. The purpose of the present invention is to suppress the growth of bacteria and microorganisms in the inside, and to prevent the bacteria and microorganisms from adhering to raw wheat and becoming unsanitary.

Further, another object of the present invention is to provide a plurality of sets of water treatment apparatuses for performing vacuum refining processing of grain raw materials in parallel, and to continuously operate the water treatment apparatuses with a time lag. An object of the present invention is to perform a vacuum refining treatment of a grain raw material.

[0016]

In order to achieve the above-mentioned object, the present invention relates to a cereal raw material containing about 9% of self-moisture, and adding and mixing about 6% of additional water as moisture of the cereal raw material, The cereal raw material such as raw wheat to which the additional water is added is vacuumed to 2
After stirring at a low speed of 0 to 40 Torr for 1 to 2 minutes, the pressure is immediately returned to the atmospheric pressure, and this raw material is rapidly impregnated with additional water by the rapid change of the atmospheric pressure and left for a certain period of time (sleeping). The present invention relates to a method for vacuum conditioning a grain raw material in which the water content of the raw material is adjusted to 14 to 17% to condition the grain raw material in a state suitable for milling.

Further, the present invention provides a vacuum water treatment apparatus having a grain raw material inflow mechanism and a grain raw material outflow mechanism, in which a stirring and transferring means for the grain raw material is internally provided, and an additional water supply tank for adding additional water to the grain raw material is provided. The degree of vacuum is 20 to 40 in the water treatment device.
The present invention relates to a vacuum conditioning apparatus for grain raw materials to which a vacuum generator for reducing pressure to Torr and a vacuum release apparatus for returning the inside of a vacuum water treatment apparatus to atmospheric pressure are connected.

Further, in the present invention, in the above-mentioned grain raw material refining apparatus, two or more sets of vacuum water refining apparatuses are provided in parallel, and each water refining apparatus is operated at a different time to continuously perform the refining processing. The present invention relates to a vacuum refining processing apparatus.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the method for vacuum refining of cereal raw materials according to the present invention will be described by taking wheat (raw wheat) as an example. First, foreign substances, foreign substances, damaged grains and the like, which are mixed in raw wheat, are removed. At the same time, normal wheat particles are carefully selected, and the selected raw wheat is separated according to production areas and types.

The self-retained water content of the separated raw wheat varies slightly depending on the locality and the type, but is usually 9%.
The raw wheat is subjected to a vacuum tempering treatment as described below in order to contain water before and after, and to make it suitable for fine selection and milling. That is, raw water containing about 9% of self-retained moisture is added with and mixed with about 6% of additional water, and the raw wheat to which this additional water is added is subjected to a vacuum of 20 to 40 To.
After stirring for 1 to 2 minutes in the state of rr, the pressure is immediately returned to the atmospheric pressure, and the barley is rapidly impregnated with additional water by this rapid change in air pressure and left for 5 to 10 hours to reduce the water content of the barley in one step. It should be around 14-17%.

By performing the above-mentioned temper treatment of the raw wheat, water is sufficiently penetrated into the endosperm tissue of the raw wheat to soften the granularity of the raw wheat and toughen the outer skin of the raw wheat,
Separation of endosperm and bran of raw wheat, crushing of endosperm,
Raw wheat is selected and put into a state suitable for milling.

About 6%, ie, 5%, is added to raw wheat as additional water.
The reason for adding water equivalent to ~ 7% is that, with the addition of less than 5% of added water, water cannot fully penetrate into the endosperm tissue of the raw wheat in one step, and the granularity of the raw wheat is softened. In addition, the toughness of the outer bark of raw wheat is insufficient, and even if additional water exceeding 7% is added, the increase in water relative to raw wheat is about 15-16% as a whole, which is a processing limit. This is because the addition of additional water exceeding 7% results in the addition of extra water.

The raw wheat to which the additional water is added is subjected to a vacuum of 20 to 40.
The refining process is performed in the state of Torr when the degree of vacuum is 2
If the pressure is less than 0 Torr, it is insufficient as a rapid change in atmospheric pressure formed when the pressure is instantaneously returned to the atmospheric pressure. If the pressure exceeds 40 Torr, there is no effect of increasing the degree of vacuum. However, energy loss increases and it is not economical.

The reason why the raw wheat mixed with added water at the degree of vacuum described above and stirred for 1 to 2 minutes is that if the stirring is performed for less than 1 minute, the mixing of the raw wheat and the water becomes insufficient, and the mixing is performed in one stage. Water cannot penetrate into the endosperm tissue of raw wheat, and the softening of the grain quality of raw wheat and the toughness of raw wheat hulls become incomplete.
Even if the stirring is performed for more than 2 minutes, the increase of the water content to the raw wheat is about 14 to 17% as a whole in the processing limit, and the water content of the raw wheat increases even if the stirring is performed for more than 2 minutes. No, it's just a loss of time.

The raw wheat impregnated with the additional water is allowed to stand for 5 to 10 hours. If the raw wheat is left for less than 5 hours (laying down), water is allowed to penetrate into the endosperm tissue of the raw wheat in one step, and Is insufficient to soften and toughen the outer skin of raw wheat,
Even if it is left for more than 10 hours, the water content of the raw wheat does not increase as in the above-mentioned reason, and only the time is lost. When performing vacuum refining treatment on cereal raw materials such as soybeans, rice, buckwheat, and corn, the conditions of the amount of added water and the degree of vacuum may be the same as those of raw wheat, but the leaving time is 30 minutes. It may be as short as ~ 60 minutes.

Next, the vacuum refining treatment apparatus for grain raw material of the present invention will be described with reference to FIG. 2 using a vacuum refining treatment apparatus for raw wheat as an example. Pneumatic transport machine 1 that transports raw wheat, starting from tank 1
The processing lines up to 2 are the same as those of the conventional raw wheat refining processing apparatus shown in FIG. 1 described above, and thus description thereof is omitted. However, different points are a service tank 31 for temporarily storing raw wheat and a screw conveyor discharge. The point that the machine 36 is attached is that a cylindrical vacuum water treatment apparatus 32 to which a water supply unit 40 and a vacuum pump unit 45 are connected is separately installed.

The feature of the apparatus of the present invention is that
2 is provided with a water supply unit 40 and a vacuum pump unit 45 connected thereto, and a stirring and feeding blade 33 rotated by a drive motor 49 is additionally provided inside the vacuum water treatment device 32. The water treatment device 32 is provided with a vacuum input gate 35 and a vacuum discharge gate 46.

In each vacuum water treatment apparatus 32 filled with raw wheat, the water supply valves 40 and 39 are opened to add additional water from the water supply unit 40 to the raw wheat in each vacuum water treatment apparatus 32. The flow meter 37 is configured to add water corresponding to about 6% to the raw wheat containing about 9% of self-holding moisture as additional water. In each vacuum water treatment device 32, the raw motor and the additional water are mixed by rotating the stirring and feed blades 33 at low speed by the drive motor 49, and when the addition of the additional water is completed, the water
And 39 are closed, the vacuum valves 42 and 43 are opened, and the vacuum pump unit 45 is operated to operate the respective vacuum water treatment devices 3.
Degas the air inside 2 to reduce the degree of vacuum to 20 to 40 Torr
It is configured to lower to the range.

That is, each vacuum water treatment apparatus 3 of the present invention
In 2, the raw wheat to which the additional water of about 6% is added is stirred for 1 to 2 minutes by the stirring and the feed blade 33 in a state of a vacuum degree of 20 to 40 Torr, and the raw wheat is added with about 6% of the additional water. Gradually begin to impregnate, then close vacuum valves 41 and 42 and vacuum break valve 44
To instantaneously return the inside of each vacuum water treatment apparatus 32 to the atmospheric pressure, and this sudden change in atmospheric pressure rapidly and rapidly impregnates the raw wheat with about 6% of added water to reduce the water content of the raw wheat in one step.
There is a point in performing a vacuum refining process of 4 to 17%.

By performing the vacuum conditioning treatment of the raw wheat by each of the vacuum water treatment devices 32, water is sufficiently penetrated into the endosperm tissue of the raw wheat to soften the granularity of the raw wheat and to reduce the quality of the raw wheat. The outer skin is toughened, the endosperm of the raw wheat is easily separated from the bran, the endosperm is crushed well, and the raw wheat is brought into a state suitable for milling processing.

Then, the stirring and feeding blades 33 are switched to high-speed rotation, the vacuum discharge gate 46 is opened, and the raw wheat subjected to the vacuum refining treatment is discharged from each vacuum water treatment device 32, and refined by the conveyor 47. After being introduced into the tank 48 and left (rested) for 5 to 10 hours, the raw wheat is passed through the usual route (lower discharger, hopper, weigher, mixer, hopper, pneumatic transporter) as shown in FIG. And transported to a roll mill.

When performing the vacuum refining treatment continuously, it is preferable to install the vacuum water treatment apparatus 32A and the vacuum water treatment apparatus 32B in parallel, and operate each vacuum water treatment apparatus with a time lag. Cutting mechanism (not shown)
Select one of the vacuum water treatment devices 32A and 32B with
The vacuum feeding gate 35 of the selected one of the vacuum water treatment devices 32A is opened, and the raw wheat whose charging amount is set by the weighing machine 34 is filled. A vacuum forming step is performed in the processing device 32B.

After a lapse of a predetermined time, the apparatus is switched to the other vacuum water treatment apparatus 32B by the upstream switching cut, the vacuum charging gate 35 of the other vacuum water processing apparatus 32B is opened, and the amount set by the meter 34 is set. While the barley is being filled and the additional water is being added, the other vacuum water treatment apparatus 3
In 2A, a vacuum forming step is performed. Thereafter,
By switching the above-described steps in the vacuum water treatment devices 32A and 32B and repeating the process alternately, the vacuum refining process may be continuously performed, and when it is not necessary to continuously perform the vacuum refining process, The vacuum water treatment device 32 is 1
It may be a set.

As the stirring and transfer means inscribed in each vacuum water treatment apparatus 32, besides the above-described stirring and feeding blades 33, a paddle type nubeater can be used. In addition, any other means capable of stirring and transferring raw wheat can be used. Any water can be used, and as an additional water supply tank for adding additional water to raw wheat, in addition to the above-described water supply unit 40, a pressurized water tank,
Any other device can be used as long as it can supply additional water. In addition to the above-described vacuum pump unit 45, an ejector and other components can be evacuated as the vacuum water treatment device 32. Any mechanism can be used as long as it has a valve attached to a pipe in addition to the above-described vacuum input gate 35 and vacuum discharge gate 46 as the grain raw material inflow mechanism and outflow mechanism.

[0035]

EXAMPLE 1 Three sets of cylindrical vacuum water treatment apparatus (manufactured by Shinmei Seisakusho) having the following structure and having built-in stirring and feeding blades were installed. # Stirring and feeding blade diameter 20cm, length 20cm,
Screw pitch 5 cm # Number of rotations of stirring and feeding blades 30 rpm # Vacuum water treatment equipment diameter 21 cm, length 24 cm, Canadian self-retaining moisture of about 9%, wheat 1 for flour milling in each set of vacuum water treatment equipment, A few liters of 2, 3 were added to the wheat, and water equivalent to 6% was added to the wheat as additional water, and the vacuum pump was operated to set the first set of vacuum water treatment equipment (apparatus for implementing the method of the present invention). Air was degassed to a degree of vacuum of 30 Torr, and the wheat 1 was stirred for 1 minute and 30 seconds by stirring and a feed blade. Then, the inside of the first set of vacuum water treatment apparatuses was immediately returned to atmospheric pressure, and 8 hours. A series of vacuum refining treatments in which the substrate was left was performed.

Further, the air in the second set of vacuum water treatment apparatuses (apparatus for performing the comparison method 1) is degassed to a degree of vacuum of 10 To.
rr, wheat 2 by stirring and feeding blades
After stirring for 1 minute and 30 seconds, the inside of the second set of vacuum water treatment apparatuses was instantaneously returned to the atmospheric pressure, and a series of vacuum refining treatments of leaving for 3 hours was performed.

Further, the air in the third set of vacuum water treatment apparatuses (apparatus for performing the comparison method 2) is degassed to a degree of vacuum of 40.
After the wheat 3 was stirred for 30 seconds by stirring and feeding blades in the state of Torr, the inside of the second set of vacuum water treatment apparatuses was immediately returned to the atmospheric pressure, and a series of vacuum refining treatments was performed in which it was left for 11 hours. Was.

As a result of performing the above vacuum refining treatment, wheat 1, 2 and 3 flowing out from the vacuum water treatment apparatus of each set
The properties were as follows. Conditioning time Water content Endosperm separability Endosperm crushability Milling processability Bacteria count Wheat 18 hours 16% Good Good Good 10 ⁴ or less (Method of the present invention) Wheat 2 3 hours 12% Bad Bad Bad 10 ⁴ or less (Comparative method 1) Wheat 3 11 hours 13% Somewhat bad Somewhat bad Somewhat bad 10 ⁵ or less (Comparative method 2)

[0039]

Example 2 Three sets of vacuum water treatment devices used in the above-mentioned Example 1 were used, and soybeans 1 for extracting 12 g of oil and fat with 12% self-holding moisture from the United States were placed in each set of water treatment devices.
A few liters of 2 and 3 were added, and water equivalent to 5% of the soybean was added as additional water, and a vacuum pump was operated to set up a first set of vacuum water treatment apparatus (apparatus for implementing the method of the present invention). Air is degassed to a degree of vacuum of 30 Torr, soybean 1 is stirred for 1 minute by stirring and a feed blade, then the inside of the first set of vacuum water treatment apparatuses is instantaneously returned to atmospheric pressure and left for 40 minutes. A series of vacuum refining treatments was performed.

As a comparative method, the air of the second set of vacuum water treatment apparatuses (the apparatus for performing the comparative method 1) was evacuated to a vacuum of 10 Torr, and the soybeans 2 were stirred for 1 minute by stirring and a feed blade. After that, the vacuum pulp was closed, the vacuum break pulp was opened, the inside of the second set of vacuum water treatment equipment was immediately returned to atmospheric pressure, and a series of vacuum refining treatments was performed in which it was left for 60 minutes.

Further, as a comparative method, the air in the third set of vacuum water treatment apparatuses (the apparatus for performing the comparative method 2) was degassed to a vacuum of 40 Torr, and the soybean 3 was stirred for 1 minute by stirring and a feed blade. After that, the inside of the second set of vacuum water treatment apparatuses was immediately returned to the atmospheric pressure, and a series of vacuum refining treatments in which the apparatus was left for 20 minutes was performed.

As a result of the above vacuum conditioning treatment, the soybeans 1, 2 and 3 flowing out of the vacuum water treatment equipment of each set were obtained.
The properties were as follows. Refining time Moisture content Flake thickness and size Milling processability Soybean 1 30 minutes 16% 0.3-0.4mm Good (Invention method) Soybean 2 60 minutes 13% Unstable Unsatisfactory (Comparative method) Soybean 3 20 minutes 12 % 0.3-0.4mm Slightly poor (Comparison method)

[0043]

EXAMPLE 3 Using three sets of vacuum water treatment equipment used in Example 1 described above, corns 1, 2 and 3 for milling with 14% self-holding moisture from the United States were placed in the vacuum water treatment equipment of each set. 1 liter was added, and water equivalent to 3% of the corn was added as additional water, and the vacuum pump was operated to evacuate the air in the first set of vacuum water treatment equipment (the apparatus for implementing the method of the present invention). Deaerate and vacuum 30 Torr
, The corn 1 was stirred for 1 minute by the stirring and the feed blades, and then the inside of the first set of vacuum water treatment apparatuses was instantaneously returned to the atmospheric pressure, and a series of vacuum refining treatments of leaving the apparatus for 40 minutes was performed. .

Further, the air in the second set of vacuum water treatment apparatuses (the apparatus for performing the comparison method 1) was degassed to a degree of vacuum of 10T.
After the corn 2 was stirred for 1 minute by the stirring and feeding blades in the orr state, the vacuum pulp was closed, and the vacuum break valve was opened to immediately return the inside of the second set of vacuum water treatment apparatuses to atmospheric pressure. A series of vacuum refining treatments of leaving for a time was performed.

Further, the air in the third set of the vacuum water treatment apparatus (the apparatus for performing the comparison method 2) was degassed to obtain a degree of vacuum of 4.
At 0 Torr, the corn 3 was stirred for 1 minute by the stirring and feeding blades, and then the vacuum valve was closed, and the vacuum break valve was opened to immediately return the inside of the second set of vacuum water treatment equipment to atmospheric pressure. A series of vacuum refining treatments, which were left for a minute, was performed.

As a result of performing the above vacuum refining treatment, the corns 1, 2
The properties of and 3 were as follows. Conditioning time Water content Endosperm separating property Endosperm crushing property Milling processability Maize 140 minutes 17% Good Good Good (The present method) Maize 260 60 minutes 12% Poor Poor Poor (Comparative method) Maize 3 20 minutes 13% Somewhat poor Somewhat bad (Comparative method)

[0047]

According to the present invention, wheat, soybeans, rice, buckwheat,
The refining treatment of these cereal raw materials, which is performed when milling cereal raw materials such as corn, is performed over a long period of time in two stages as in the conventional first and second stage refining processes. Rather than performing the process, the refining process time is reduced to one-half or less of the conventional case by performing the process in a single stage under vacuum without any trouble. It is possible to achieve an excellent effect that can reduce power consumption and labor.

Further, according to the present invention, two sets of a primary refining tank and a secondary refining tank (including related equipment, etc.) are used for the refining treatment of the cereal raw material as in the prior art. Instead, the refining process can be performed with only one set without any trouble, reducing the initial and running costs of the equipment, reducing the overall size of the equipment, reducing the equipment installation area, and improving the space economy. There are practical benefits that can be improved.

Further, according to the present invention, the refining treatment of raw wheat is performed in one stage and in a short time, and the time in which the raw wheat stays in water and shortens, so that bacteria can be stored in the refining tank. There is an advantage that it is possible to suppress the propagation of microorganisms and microorganisms, and to prevent bacteria and microorganisms from adhering to raw wheat and becoming unsanitary.

Further, according to the present invention, a plurality of sets of water treatment devices for performing the refining treatment of grain raw materials are installed in parallel, and each water treatment device is operated with a time lag to continuously prepare the grain raw materials. There is an effect that quality processing can be performed.

Furthermore, according to the present invention, it is possible to uniformly add water to the cereal raw material, so that the quality of the milled product is stabilized and the yield is improved. In addition, since there is no free moisture on the surface of the cereal raw material, there is an advantage that the blocking in the tank or the device is eliminated, and the discharge of the cereal raw material becomes smooth and easy.

Furthermore, the present invention can be used for the treatment of pressing soybeans at the time of extracting fats and oils of soybeans and the treatment of reducing the thickness of soybean flakes, in addition to the above-mentioned tempering treatment of wheat when milling wheat. It can also be used for the process of immersing high moisture in soybeans before immersion in a short time when processing tofu from soybeans, and can be used instead of immersion when milling or processing noodles on rice. It can be used for the refining of buckwheat raw material before threshing when milling, the refining of raw material before degermination (dry type) when milling corn, and the process of immersing high moisture in corn in a short time before immersion. In addition, there is an effect that the quality of the grain product to be manufactured is stabilized and the yield is improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of a conventional wheat heat treatment method and heat treatment apparatus.

FIG. 2 is an explanatory diagram showing an example of a method and apparatus for refining wheat according to the present invention.

[Description of Signs] 1 Raw wheat tank 2 Feeder 3 Upper hopper 4 Weighing machine 5 Mixer 6 Lower hopper 7 Pneumatic transporter 8-11 Purifier 12 Air transporter 13 Primary hydration unit 14 Water tank 15 Conveyor 16 Primary Temper tank 17 Feeder 18 Upper hopper 18 19 Weighing machine 20 Mixer 21 Lower hopper 22 Pneumatic transporter 23 Secondary hydrator 24 Water tank 25 Conveyor 26 Secondary temper tank 27 Quantitative feeder 28 Hopper 29 Feed conveyor 30 Roll Crusher 31 Service tank 32 Vacuum water treatment device 33 Stirring and feed blade 34 Metering machine 35 Vacuum input gate 36 Screw conveyor discharge machine 37 Flow meter 38, 39 Watering valve 40 Watering supply unit 41 Watering valve 42, 43 Vacuum valve 43 Vacuum valve 44 Vacuum breaker Pulp 45 vacuum pump unit 46 vacuum discharge gate 47 conveyor 48 temper tank 49 drive motor

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[Procedure amendment]

[Submission date] September 19, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0023

[Correction method] Change

[Correction contents]

The raw wheat to which the additional water is added is subjected to a vacuum of 20 to 40.
The refining process is performed in the state of Torr when the degree of vacuum is 2
If the pressure exceeds 0 Torr , it is insufficient as a sudden change in atmospheric pressure formed when the pressure is instantaneously returned to the atmospheric pressure.
On the other hand, if the degree of vacuum is less than 40 Torr , the effect of merely increasing the degree of vacuum is not obtained, and energy loss increases, which is not economical.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction contents]

In each vacuum water treatment apparatus 32 filled with raw wheat, the water supply valves 40 and 39 are opened to add additional water from the water supply unit 40 to the raw wheat in each vacuum water treatment apparatus 32. The flow meter 37 is configured to add water corresponding to about 6% to the raw wheat containing about 9% of self-holding moisture as additional water. In each of the vacuum hydrolysis processing apparatus 32, the drive motor 49 to rotate the stirring and feeding blade 33 at a low speed by mixing additional water and Genbaku, the hydro valves 38 After the addition of additional water is complete
If after closing the 39, vacuum valves 42 and 43 each vacuum hydrolysis processor 3 by operating the vacuum pump unit 45 is opened
Degas the air inside 2 to reduce the degree of vacuum to 20 to 40 Torr
It is configured to lower to the range.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

That is, each vacuum water treatment apparatus 3 of the present invention
In 2, the raw wheat to which the additional water of about 6% is added is stirred for 1 to 2 minutes by the stirring and the feed blade 33 in a state of a vacuum degree of 20 to 40 Torr, and the raw wheat is added with about 6% of the additional water. gradually began impregnated, then, it closes the vacuum valves 42 and 4 3, the vacuum break valve 44
To instantaneously return the inside of each vacuum water treatment apparatus 32 to the atmospheric pressure, and this sudden change in atmospheric pressure rapidly and rapidly impregnates the raw wheat with about 6% of added water to reduce the water content of the raw wheat in one step.
There is a point in performing a vacuum refining process of 4 to 17%.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0040

[Correction method] Change

[Correction contents]

As a comparative method, the air of the second set of vacuum water treatment apparatuses (the apparatus for performing the comparative method 1) was evacuated to a vacuum of 10 Torr, and the soybeans 2 were stirred for 1 minute by stirring and a feed blade. after, closes the vacuum valves, the second set of vacuum hydrolysis processing apparatus returns instantly to the atmospheric pressure by opening the vacuum break valves, we performed a series of true conditioning quality processing for for 60 minutes.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of a conventional wheat heat treatment method and heat treatment apparatus.

FIG. 2 is an explanatory diagram showing an example of a method and apparatus for refining wheat according to the present invention.

[EXPLANATION OF SYMBOLS] 1 Genbaku tank 2 transmitters 3 upper hopper 4 weighing machine 5 Mixer 6 lower hopper 7 air transport 8-11 Collection machine 12 air transporter 13 primary water adding unit 14 water tank 15 conveyor 16 first-order Temper tank 17 Feeder 18 Upper hopper 19 Weighing machine 20 Mixer 21 Lower hopper 22 Air transporter 23 Secondary hydrator 24 Water tank 25 Conveyor 26 Secondary temper tank 27 Quantitative feeder 28 Hopper 29 Feed conveyor 30 Roll crushing machine 31 service tank 32 vacuum hydrolysis processing apparatus 33 stir and feed blade 34 weighing machine 35 vacuum closed gate 36 screw conveyor discharger 37 flowmeter 39 hydro valve 40 hydro supply unit 41 hydro valve 43 vacuum valves 44 vacuum brake Bas Help 45 vacuum port Pump unit 46 Vacuum discharge gate 47 Conveyor 48 Tempering tank 49 Drive motor

Claims (3)

[Claims] Claims 1. A wheat, soybean containing about 9% (by weight) of self-moisture from which foreign substances, contaminants, and damaged particles are removed.
Rice, buckwheat, corn and other cereal raw materials are mixed with additional water equivalent to about 6% (weight) as the water content of the cereal raw materials, and the cereal raw materials to which the added water is added are vacuum-
After immersion or stirring for 1 to 2 minutes in the state of 40 Torr, the pressure is immediately returned to the atmospheric pressure, and the grain material is rapidly impregnated with additional water by this rapid pressure change and left for a certain period of time. A vacuum refining method for a grain raw material in which the grain raw material is adjusted to 14 to 17% (weight) so as to be suitable for food processing such as milling. 2. A vacuum water treatment apparatus having an inflow mechanism and an outflow mechanism for grain raw materials such as wheat, soybeans, rice, buckwheat, and corn, in which a stirring and transferring means for the grain raw materials is internally provided, and additional water is added to the grain raw materials. A vacuum conditioning apparatus for grain raw materials to which an additional water supply tank to be added, a vacuum generator for setting the degree of vacuum in the vacuum water treatment apparatus to 20 to 40 Torr, and a vacuum release apparatus for returning the inside of the vacuum water treatment apparatus to atmospheric pressure are connected. 3. The cereal raw material according to claim 2, wherein two or more sets of vacuum water treatment apparatuses are provided in parallel, and each of the vacuum water treatment apparatuses is operated with a time lag to perform continuous refining processing of the grain raw material. Air conditioning quality processing equipment.