KR101902571B1 - Apparatus for grain puffing using carbon dioxide - Google Patents

Abstract

The present invention relates to a grain puffing apparatus which includes a reactor for inserting grains therein, a supply unit for injecting liquid carbon dioxide into the reactor, and a heater unit supplying hot air into the reactor. The carbon dioxide and hot air are supplied to the grains inserted into the reactor for puffing the grains.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cereal-

The present invention relates to an apparatus for expanding cereals using liquefied carbon dioxide (CO ₂ ).

More particularly, the present invention relates to a grain blowing apparatus using carbon dioxide which injects liquefied carbon dioxide into pores formed on the surface of grain of a grain and supplies hot air to the grain so that the carbon dioxide on the surface of the grain is vaporized and the grain is expanded.

Generally, puffing refers to the expansion of the volume of cereals by pressurizing or supplying heat. Generally, foods such as puffers are applicable. Depending on the degree of puffing of the cereals and the amount of water and heat supplied, Value is varied.

Conventionally, grains can be dried and stored through various drying methods to facilitate the storage of the grains and to improve the taste.

Among these drying methods, a thermal power drying method in which grains are disposed in a drying chamber and air in the drying chamber is heated and a freeze drying method in which the drying is performed at a low temperature for a long time is mainly used.

However, since the thermal drying method is a method in which grains are heated to a high temperature to dry them, there is a problem that the inherent grain structure is destroyed and the morphology thereof is deteriorated. In case of the freeze drying method, the grain is frozen and crisp There is a problem in that it tends to be deformed and deteriorates taste and quality. Further, both of the above methods have a low accessibility because the apparatus used for drying is expensive, and it takes much time to dry.

As described above, in addition to the conventional thermal drying method or the freeze-drying method, techniques for improving the taste and the merchandise value by expanding the grain and solving the problems of costly and time-consuming work Development is required.

Japanese Patent Application Laid-Open No. 10-2016-0111061 (June 26, 2016)

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for supplying liquefied carbon dioxide to pores formed on grain surfaces of grains, And to provide a grain expanding device using carbon dioxide which causes the grain to expand.

According to an aspect of the present invention, there is provided an apparatus for expanding cereals using carbon dioxide, comprising: a reactor into which cereals are introduced; A supply unit for injecting liquefied carbon dioxide into the reactor; And a heater for supplying hot air to the inside of the reactor, wherein liquefied carbon dioxide and hot air are supplied to the grains introduced into the reactor to expand the grain, We want to solve the technical problem.

The present invention has a remarkable effect of injecting liquefied carbon dioxide into the pores formed on the grain surface of the grain and supplying hot air so that the liquefied carbon dioxide on the surface of the grain vaporizes and the grain is expanded.

In addition, it has a remarkable effect that it is possible to activate the pores formed in the grain through expansion, thereby improving the taste of the grain and minimizing the time and cost of drying.

In addition, by recycling the hot air to be supplied partially, the operation time of the heater for hot air supply is minimized, and the life and durability degradation due to the increase in use can be minimized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a configuration of a granulating device using carbon dioxide according to an embodiment of the present invention; FIG.
FIG. 2 is a view illustrating an injection port provided in the granulating device using carbon dioxide according to an embodiment of the present invention.
FIG. 3 is a schematic view of a granulating device using carbon dioxide according to another embodiment of the present invention.
FIG. 4 is a view showing an agitator in a carbon dioxide-based grain blowing apparatus according to another embodiment of the present invention.
FIG. 5 is a plan view illustrating an example of operation of a stirrer in a carbon dioxide-based grain blowing apparatus according to another embodiment of the present invention.

Advantages and features of embodiments of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings defined in consideration of functions in the embodiments of the present invention, It should be construed in the meaning and concept consistent with the technical idea of the present invention based on the principle that the concept of the term can be appropriately defined in order to explain it in the best way.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, various equivalents And variations are possible.

Before describing the present invention with reference to the accompanying drawings, it is not shown what is not necessary in order to reveal the gist of the present invention, that is, a publicly known structure that a person skilled in the art can easily add, .

The present invention relates to a device for expanding cereals such as tobacco leaves, ginseng leaves, tea leaves, red ginseng powder, etc., wherein liquefied carbon dioxide is injected into pores formed on the grain surface of the grain, , The carbon dioxide in the surface of the grain vaporizes and the grain is expanded, thereby improving the taste and quality through puffing of the grains that activate the pores, and the grain expansion device using carbon dioxide which can minimize the drying time and cost .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

FIG. 1 is a view showing a schematic configuration of a cereal-enlarging device using carbon dioxide according to an embodiment of the present invention. FIG. 2 is a view of a jetting port provided in a cereal-enlarging device using carbon dioxide according to an embodiment of the present invention to be.

The apparatus for expanding cereals using carbon dioxide according to the present invention supplies liquefied carbon dioxide and hot air to the inside of a reactor 100 into which cereals are introduced so as to expand the cereals through pore activation. The reactor 100, the feeder 200, And a heater unit (300).

The reactor 100 provides a space in which a variety of grains are introduced and seated, and can be constructed with an airtight structure to control the internal pressure.

The reactor 100 is provided with a grid-shaped support portion (not shown) having a plurality of perforation holes 111 formed therein so as to prevent the introduced grains from being released to the outside, and to supply the hot air directly supplied to the inside of the reactor 100 to the grains 110).

In this case, the supporting part 110 is desirably detachable into the reactor 100, and the reactor 100 has a closed structure so that the detachable support part 110 can be detached from the reactor 100 It is of course possible to have a structure capable of selectively opening.

Thus, when grain-shaped grains having a small size are fed into the support portion 110, the support portion 110 is inserted into the reactor 100 to allow the grains to be introduced into the reactor 100, The hot air supplied into the reactor 100 through the through holes 300 is directly supplied to the grains through the plurality of through holes 111 formed in the support 110 while remaining in the reactor 100 having a closed structure.

Therefore, not only the reactivity by the direct contact between the grain and the hot air can be improved, but also the grain is floated in the reactor at a predetermined height, so that hot air can be evenly contacted to the surface of the grain.

According to the design conditions, the supporting part 110 may be formed in the form of a basket in which the upper side is opened and the grain can be stored, and the perforation hole 111 is formed in a side surface of the support part 110 in the form of a basket, As shown in FIG.

The supply unit 200 functions to inject liquefied carbon dioxide into the reactor 100 and includes a tank 210, a supply pipe 220, an injection port 230, and a discharge pipe 240.

The tank 210 provides a space for storing liquefied carbon dioxide, and the stored carbon dioxide is transferred to the reactor 100.

At this time, the carbon dioxide transferred to the reactor 100 is preferably colorless, tasteless, and liquefied liquefied carbon dioxide. Since it is directly injected into the grain, it can be made to have a purity of about 99% or more, which is a level used as a food additive, The compressed carbon dioxide is compressed and liquefied and stored in the tank 210.

The supply pipe 220 is connected to the tank 210 and functions to inject liquefied carbon dioxide into the reactor 100.

At this time, the supply pipe 220 is connected to the tank 210 at one side, and the other side is connected to the reactor 100. As shown in FIG. 1, the liquefied carbon dioxide is directly injected into the grains fed into the reactor 100 Or may extend into the interior of the reactor 100 in order to be able to react with the catalyst.

Depending on the design conditions, a portion of the supply tube 220 located within the reactor 100 of the supply tube 220 may have a variable length configuration.

For example, the length of the supply pipe 220 formed in the reactor 100 may be adjusted by telescoping. In another example, the plurality of pipes may be selectively coupled or disconnected, And may be configured to adjust the length of the supply tube 220.

Accordingly, the height of the supply pipe 220 and the jetting port 230, which will be described later, can be adjusted, so that the jetting port 230, which will be described later, can be easily positioned inside the grain according to the amount of the cereals to be accommodated in the reactor 100 .

The injection port 230 is provided at the end of the supply pipe 220 so that liquefied carbon dioxide transferred through the supply pipe 220 is injected into the reactor 100. The position of the injection port 230 is the same as that shown in FIG. As well as in the grains introduced into the reactor 100.

Thus, contact and reactivity can be improved by injecting liquefied carbon dioxide injected through the injection port 230 into the inside of the grains rather than injecting the grains into the reactor 100.

2, the injection port 230 may be formed at the lower end of the supply pipe 220 and may have a spherical shape, and may have a plurality of through holes (not shown) perpendicular to the outer surface of the injection hole 230 231 may be formed.

2, the plurality of through holes 231 are formed so as to be perpendicular to the outer surface of the injection port 230, respectively. Therefore, the through holes 231 are formed in the direction penetrated by the through holes 231, The liquefied carbon dioxide passing through the nozzle hole 231 may be guided to the outside by the hole 231 due to the morphological characteristics of the injection hole 230 and may be uniformly injected in multiple directions outside the injection hole 230.

The liquefied carbon dioxide is entirely spread into the grains injected into the reactor 100 by the jetting ports 230 formed in the spherical shape and the plurality of through holes 231 formed in the jetting port 230 to increase the contact area between the grain and liquefied carbon dioxide And the reactivity can be improved.

The exhaust pipe 240 functions to purge the liquefied carbon dioxide injected into the reactor 100. That is, the purge function is performed by connecting the exhaust pipe 240 to the reactor 100, So that liquefied carbon dioxide is discharged to the outside.

Here, the purge functions to evacuate and ventilate the inside air of the reactor 100 to the outside, and is preferably provided on the upper side of the reactor 100.

After the cereals are introduced into the reactor 100, liquefied carbon dioxide is supplied from the feeder 200 to the reactor to bring the grains into contact with the liquefied carbon dioxide, thereby injecting carbon dioxide into the pores existing on the surface of the grain.

After maintaining the inside of the reactor at a constant pressure for 1 to 10 minutes, the liquefied carbon dioxide is discharged to the outside through the discharge pipe 240. Even if the liquefied carbon dioxide in the reactor is exhausted, carbon dioxide still exists in the grain pores.

When hot air is supplied from the lower side of the reactor 100 through the heater unit 300 to be described later, the carbon dioxide present in the pores of the grain vaporizes and the grain is expanded.

The heater unit 300 functions to supply hot air into the reactor 100 and includes a heater 310, a fan 320, and a filter 330.

The heater unit 300 supplies hot air to the reactor 100 through the hot air supply pipe 301 connected to the reactor 100 and the hot air passing through the reactor 100 is supplied to the hot air supply pipe 301 connected to the reactor 100, The hot air is discharged through the circulation pipe 302. The hot air other than the hot air that is lost in the process of transferring the hot air or discharged to the outside is circulated and re-supplied into the reactor 100, the operating time of the heater 310 for supplying hot air can be minimized, and the service life and durability degradation due to the increase in use can be minimized.

According to the design conditions, the hot air supply pipe 301 may be connected to the lower side of the reactor 100 to supply hot air from the lower side of the reactor 100 to the upper side.

Thus, the hot air supplied from the lower side of the reactor 100 allows the grain contained in the reactor 100 to float upward by a predetermined height, thereby increasing the contact area between the grain and the hot air, thereby improving the reactivity.

The heater 310 functions to generate hot air, and is connected to the reactor 100 and the hot air supply pipe 301 to supply hot air into the reactor 100.

At this time, it is preferable that the hot air supplied to the reactor 100 is 50 to 100 ° C.

If the temperature of the hot air is lower than 50 캜, it is difficult to expect the reaction of the grain by the hot air. If the temperature of the hot air is higher than 100 캜, the carbonization of the carbon dioxide becomes too rapid and the grain can not be efficiently expanded. .

The fan 320 functions to supply the hot air generated by the heater 310 to the inside of the reactor 100 through the hot air supply pipe 301 and can be configured to control the flow rate.

At this time, the operation of the fan 320 is preferably about 3 to 5 m / s.

The filter 330 functions to filter the hot air passing through the reactor 100 through the hot air circulation pipe 302 and to filter out the foreign substances contained in the hot air for recycle. do.

The heater unit 300 sequentially passes hot air generated by the heater 310 through the hot air supply pipe 301, the reactor 100, the hot air circulation pipe 302, the filter 330 and the fan 320 To be circulated. That is, hot air is supplied into the reactor 100, and a part of the hot air passing through the reactor 100 is reused, so that the energy used can be minimized and efficient operation can be performed.

The operation of the apparatus for expanding carbon dioxide using the carbon dioxide according to one embodiment of the present invention will now be described. A support 110 having a plurality of perforation holes 111 is inserted into the reactor 100, After the grains are put into the support part 110 and the reactor 100 is closed, liquefied carbon dioxide is injected into the reactor through the supply part 200.

At this time, the pressure inside the reactor 100 is preferably set at a maximum of 30 bar, and the inside of the reactor is maintained at a constant pressure for 1 to 10 minutes, and then the liquefied carbon dioxide is discharged to the outside through the discharge pipe 240. Even if the liquefied carbon dioxide in the reactor is exhausted, carbon dioxide still exists in the grain pores.

If the time of maintaining the internal pressure of the reactor 100 is less than 1 minute, the reaction time is significantly reduced and the degree of reaction due to the expansion is not expected. If it is more than 10 minutes, the quality of the grain is deteriorated.

Next, hot air is supplied into the reactor 100 through the heater unit 300.

The grain is floated in the reactor 100 by a predetermined height due to hot air supplied from the lower side to the upper side of the reactor 100.

In this process, the liquefied carbon dioxide which has been in contact with the pores of the grain is vaporized by the hot wind and the grain is expanded.

According to this configuration, liquefied carbon dioxide is injected into the pores formed on the surface of the grain of the grain, and the hot air is supplied to cause the carbon dioxide on the surface of the grain to vaporize while expanding the grain, The drying time and cost can be minimized as compared with the freeze drying method.

Also, puffing can activate the pores formed in the grain, thereby improving the taste of the grain and minimizing the time and cost of drying.

In addition, by recycling the hot air to be supplied partially, the operation time of the heater 310 for supplying hot air can be minimized, and the life and durability degradation due to the increase in use can be minimized.

Meanwhile, in the process of injecting liquefied carbon dioxide into the grains contained in the reactor 100, only a part of the grains may be contacted and the whole grain may not be expanded.

3 to 5, since the agitator 400 is provided inside the reactor 100, the process of injecting liquefied carbon dioxide into the grains contained in the reactor 100 and / or the process of injecting hot air into the reactor In the process, the grain may be agitated to cause the entire grain to be in contact with liquefied carbon dioxide and / or hot air.

Hereinafter, an apparatus for expanding carbon dioxide-based grain according to another embodiment of the present invention including the agitator 400 will be described.

First, it should be noted that overlapping portions of the contents already described in Figs. 1 and 2 have not been described.

FIG. 3 is a view showing a schematic configuration of a granulating device using carbon dioxide according to another embodiment of the present invention, FIG. 4 is a view showing an agitator in a granulating device using carbon dioxide according to another embodiment of the present invention, FIG. 5 is a plan view illustrating an example of operation of a stirrer in a carbon dioxide-based grain blowing apparatus according to another embodiment of the present invention.

The apparatus for expanding carbon dioxide according to another embodiment of the present invention comprises a reactor 100, a feeder 200, a heater 300, and a stirrer 400.

The stirrer 400 performs a function of stirring the grains introduced into the reactor 100 and includes a stirring motor 410, a rotating shaft 420 and an impeller 430.

The stirring motor 410 functions to generate a rotational force in the reactor 100.

The rotating shaft 420 is connected to the stirring motor 410 and is provided inside the reactor 100 and is rotated by the operation of the stirring motor 410.

The impeller 430 is installed on the rotating shaft 420 and is rotated to rotate the grains to be introduced into the reactor 100 by rotation. More specifically, the impeller 430 is formed in a plurality of radial directions on the rotating shaft 420.

At this time, the impeller 430 may be formed in a propeller shape. The inclined angle from the upper portion to the lower portion is increased as the impeller 430 moves away from the rotary shaft 420 to the outside of the rotary shaft 420, 430 facing the direction of rotation.

The grains contained in the reactor 100 are stirred by the rotation of the impeller 430 and the grains located below the grains are guided to the upper side by the rotating direction and the inclined surface of the impeller 430, Is guided to the lower side by gravity after the passage of the agitator 400, whereby the whole grain is evenly mixed by the operation of the agitator 400, and the reactivity can be improved.

1 and 2, the supply pipe 220 and the injection port 230 provided in the supply unit 200 are positioned inside the reactor 100 so that liquefied carbon dioxide is injected into the grains contained in the reactor 100 However, as shown in FIGS. 4 and 5, it is needless to say that the injector 230 is not separately provided, but the injected liquid carbon dioxide may be injected through the impeller 430 rotating.

3 to 5, in the apparatus for expanding carbon dioxide according to another embodiment of the present invention, the supply unit 200 includes a tank 210, a transfer pipe 270, an impeller jetting port 280 And a discharge pipe 240. [0033]

The transfer pipe 270 is connected to the tank 210 at one side and the other side is connected to the rotating shaft 420 of the stirrer 400.

The liquefied carbon dioxide transferred from the transfer pipe 270 is transferred to the impeller 430 via the rotary shaft 420 and may be injected into the impeller through the impeller injection port 280 formed in the impeller 430.

That is, in the course of rotation of the impeller 430, liquefied carbon dioxide is injected into the grains so that the grains are evenly contacted with the liquefied carbon dioxide, and thus the reactivity can be improved.

At this time, the impeller jetting port 280 may be formed on the side of the impeller 430 which is opposite to the direction in which the impeller 430 is rotated.

The impeller jet port 280 is formed such that the liquefied carbon dioxide transferred through the transfer pipe 270 is transferred to the impeller 430 through the rotary shaft 420 and discharged to the outside through the impeller jet port 280 to be injected into the grains do.

5, a plurality of impeller jetting openings 280 are formed on the back side of the impeller 430 in the rotating direction of the impeller 430, so that mixing of the impeller and the liquefied carbon dioxide At the same time, the reactivity can be improved.

Further, the flow of the liquefied carbon dioxide into the grains is naturally induced by the rotation of the impeller 430, thereby minimizing the problem that a part of the grain interferes with the impeller jetting port 280 by interfering with the impeller jetting port 280.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It can be seen that branch substitution, modification and modification are possible.

100: reactor 110: support
111: Perforation hole 200: Supply part
210: tank 220: supply pipe
230: jet hole 231: through hole
240: discharge pipe 270: transfer pipe
280: impeller jetting port 300: heater part
301: hot air supply pipe 302: hot air circulation pipe
310: heater 320: fan
330: filter 400: stirrer
410: stirring motor 420: rotating shaft
430: impeller

Claims (7)

A reactor 100 into which grains are injected;
A feeder 200 for injecting liquefied carbon dioxide into the reactor 100;
A heater unit 300 for supplying hot air into the reactor 100; And
And an agitator (400) for agitating the grains introduced into the reactor (100)
The stirrer (400)
A stirring motor 410 for generating a rotating force in the reactor 100;
A rotating shaft 420 connected to the stirring motor 410 and provided inside the reactor 100 and rotated by the operation of the stirring motor 410; And
And an impeller (430) installed on the rotating shaft (420) and stirring the grain introduced into the reactor (100) by rotation,
The supply unit 200
A tank 210 in which liquefied carbon dioxide is stored;
A transfer pipe 270 connected to the tank 210 at one side and connected to the rotation shaft 420 at the other side;
An impeller jet port 280 formed in the impeller 430 for jetting liquefied carbon dioxide injected through the transfer pipe 270 and the rotary shaft 420; And
And a discharge pipe (240) connected to the reactor (100) and discharging liquefied carbon dioxide injected into the reactor (100) to the outside,
The impeller jetting port 280
Is formed on a side surface of the impeller (430) opposite to the direction in which the impeller (430) is rotated,
Wherein the liquefied carbon dioxide and the hot air are supplied to the grains introduced into the reactor (100), so that the grain is expanded.
The method according to claim 1,
The reactor (100)
A grid-like support 110 having a plurality of perforation holes 111 formed therein,
Wherein the support part (110) is detachable from the reactor (100).
delete The method according to claim 1,
The heater unit 300 includes:
The hot air is supplied from the lower side of the reactor 100 to the upper side,
Wherein the supplied hot air is 50 to 100 ° C.
The method according to claim 1,
The heater unit 300 includes:
A heater 310 generating hot air;
A fan 320 for supplying the hot air generated by the heater 310 to the inside of the reactor 100 through the hot air supply pipe 301; And
And a filter 330 for discharging the hot air passing through the reactor 100 through the hot air circulation pipe 302 to be filtered,
The hot air generated by the heater 310 is circulated through the hot air supply pipe 301, the reactor 100, the hot air circulation pipe 302, the filter 330 and the fan 320 in sequence. Used grain expansion device.
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