KR20030018250A - A decompressed type agicultural products dryer and drying method - Google Patents

A decompressed type agicultural products dryer and drying method Download PDF

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KR20030018250A
KR20030018250A KR1020010051859A KR20010051859A KR20030018250A KR 20030018250 A KR20030018250 A KR 20030018250A KR 1020010051859 A KR1020010051859 A KR 1020010051859A KR 20010051859 A KR20010051859 A KR 20010051859A KR 20030018250 A KR20030018250 A KR 20030018250A
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drying chamber
drying
air
pressure
hot air
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KR1020010051859A
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Korean (ko)
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KR100445162B1 (en
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김영민
조광환
김유호
이선호
오성식
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대한민국(관리부서:농촌진흥청)
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Priority to KR10-2001-0051859A priority Critical patent/KR100445162B1/en
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/005—Preserving by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2300/00—Processes
    • A23V2300/10—Drying, dehydrating

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Zoology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

PURPOSE: Provided are a decompressed typed dryer for agricultural products and a drying method by repeating decompressing and heat air supplying processes, thereby reducing drying coat and shortening time for drying. CONSTITUTION: The decompressed typed dryer for agricultural products is characterized by comprising the parts of: a decompressing unit which reduces the pressure by discharging air from the inside of a drying chamber forming a space to the outside thereof; a heating unit which heats air inside of the drying chamber and circulating it; a heated air dispersing guide; and a first control valve to control the inflow of air from the outside of the drying chamber to the inside thereof.

Description

감압식 농산물건조장치 및 건조방법{A DECOMPRESSED TYPE AGICULTURAL PRODUCTS DRYER AND DRYING METHOD}Pressure-sensitive agricultural product drying apparatus and drying method {A DECOMPRESSED TYPE AGICULTURAL PRODUCTS DRYER AND DRYING METHOD}

본 발명은 감압식 농산물 건조장치 및 건조방법에 관한 것으로서, 더욱 상세하게는 건조온도 및 시간에 따라 품질의 변화가 큰 농산물을 건조함에 있어 건조시간을 단축하고 건조에너지를 줄여 농가소득에 일조할 수 있는 농산물 건조장치 및 이를 이용한 건조방법을 제공하기 위한 것이다.The present invention relates to a pressure-sensitive agricultural product drying apparatus and drying method, and more particularly, in drying agricultural products having large quality changes according to drying temperature and time, the drying time can be shortened and drying energy can be reduced to contribute to farm household income. It is to provide an agricultural product drying apparatus and a drying method using the same.

일반적으로 표고버섯이나 아가리쿠스 등과 같은 농산물은 건조온도 및 시간에 따라 품질의 변화가 크게 발생하는데, 이를 건조하기 위한 건조방법으로는 버너로 열풍을 만들어 열풍이 피건조물을 지나치면서 건조하는 방법과, 특수건조기로서 보급되어 있는 진공건조기를 이용하여 건조실 내부에 진공을 형성하여 수분의 기화점을 낮추고 전도열로 건조하는 방법이 사용된다.Generally, agricultural products such as shiitake mushrooms and agaricus are greatly changed in quality depending on drying temperature and time.A drying method for drying them is to make hot air with a burner and dry it while the hot air passes over the dried material, and special A method of forming a vacuum in the drying chamber using a vacuum dryer that is supplied as a dryer to lower the vaporization point of moisture and drying it by conduction heat is used.

그중, 전자인 열풍건조방식은 일반농가에서 많이 사용하고 있지만 건조에너지, 건조시간 및 고품질의 건조농산물의 생산이 어렵고, 후자인 진공건조방식은 건조기의 크기에 비해 건조량이 적고 에너지 소요가 많으며 건조에너지의 손실이 커 일반 농산물에 적용이 어려운 문제점이 있었다.Among them, the former hot air drying method is widely used in general farms, but it is difficult to produce dry energy, drying time, and high quality dry produce. The latter vacuum drying method is less dry and requires more energy than drying machine. There was a problem that it is difficult to apply to general agricultural products due to the large loss.

본 발명은 상기한 종래 문제점을 해결하기 위해 제안된 것으로서, 감압과 열풍을 이용한 건조를 수행하여 농산물의 품질손상을 최소화하도록 하는 가운데 건조시간을 단축하고 건조에너지를 줄일 수 있어 농가소득에 기여할 수 있는 건조장치 및 이를 이용한 건조방법을 제공하는데 목적이 있다.The present invention has been proposed in order to solve the above-mentioned problems, which can reduce the drying time and reduce the drying energy while minimizing the quality damage of agricultural products by performing drying using reduced pressure and hot air can contribute to farm income It is an object to provide a drying apparatus and a drying method using the same.

상기 목적은, 소정 공간을 형성하고 있는 건조실의 내부공기를 외부로 강제 배출하여 압력을 강하시키는 감압수단; 상기 건조실 내부의 공기를 가열하여 순환시키는 가열수단; 상기 가열수단에 의해 가열 및 송풍되어지는 열풍이 고르게 분산되어지도록 설치되어진 열풍분산 가이드; 상기 건조실 내부로 외부공기가 인입되는것을 제어하는 제1제어밸브;를 포함하여 구성되어진 것을 특징으로 하는 감압식 농산물 건조장치를 통해 이룰 수 있게된다.The above object is to reduce the pressure by forcibly discharging the internal air of the drying chamber forming a predetermined space to the outside; Heating means for heating and circulating air in the drying chamber; A hot air dispersion guide provided to distribute the hot air heated and blown by the heating means evenly; A first control valve for controlling the introduction of external air into the drying chamber; it can be achieved through a pressure-sensitive agricultural product drying apparatus comprising a.

도 1은 본 발명 농산물건조장치의 내부구성을 나타낸 사시도.1 is a perspective view showing the internal configuration of the agricultural product drying apparatus of the present invention.

도 2는 본 발명 농산물건조장치의 내부단면도.Figure 2 is an internal cross-sectional view of the agricultural product drying apparatus of the present invention.

도 3은 가열수단의 평면도와 정면도, 배면도.3 is a plan view and a front view and a rear view of the heating means.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 건조실2 : 건조상자1: drying chamber 2: drying box

3 : 가열수단3a: 전기히터3: heating means 3a: electric heater

3b: 열풍순환팬3c: 열풍공급구3b: hot air circulation fan 3c: hot air supply port

4 : 열풍분산판5 : 흡입구4: hot air dispersion plate 5: suction port

6 : 감압블로워7 : 배풍구6: decompression blower 7: vent hole

5a,7a : 솔레노이드밸브5a, 7a: Solenoid Valve

이하, 본 발명의 구체적인 실시예를 첨부도면을 참조하여 상세히 살펴보기로 한다.Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 실시예에 따른 농산물 건조장치에서 내부구성을 나타내기 위한 사시도이고, 도 2는 내부단면도이며, 도 3은 건조실 내부공기의 가열을 위한 가열장치의 정면도 및 평면도, 그리고 배면도를 각각 도시한 것이다.1 is a perspective view for showing the internal configuration in the agricultural product drying apparatus according to an embodiment of the present invention, Figure 2 is an internal cross-sectional view, Figure 3 is a front view and a plan view, and the back of the heating device for heating the air in the drying chamber Each figure is shown.

먼저, 본 실시예에 따른 농산물 건조장치 구성을 살펴보기로 한다.First, the configuration of the agricultural product drying apparatus according to the present embodiment will be described.

외부와 밀폐되어진 하나의 챔버공간을 이루고 있는 건조실(1) 내부에는 농산물이 보관되어지는 다수의 건조상자(2)가 적층 보관되어지며, 건조실(1)의 하부에는 내부공기의 가열을 위한 가열수단(3)이 설치되었다. 상기 가열수단(3)은 도 3에 별도로 도시된 바와같이 내부에 공기 가열을 위한 전기히터(3a)가 다수의 열을 형성하도록 일정간격으로 배치되어져 있으며 그 후단에는 내부공기가 전기히터(3a)를 통과하여 순환되어지도록 공기를 강제 순환시키는 열풍순환팬(3b)이 구비되어지게 된다.In the drying chamber (1) forming one chamber space sealed with the outside, a plurality of drying boxes (2) for storing agricultural products are stacked and stored, and heating means for heating the internal air in the lower part of the drying chamber (1) (3) was installed. As shown separately in FIG. 3, the heating means 3 is arranged at regular intervals such that the electric heater 3a for air heating therein forms a plurality of rows, and at the rear end thereof, the internal air heater 3a. Hot air circulation fan (3b) for forcibly circulating air to be circulated through it is provided.

그리고, 건조실(1)의 일측에는 상기 가열수단(3)으로 부터 열풍공급구(3c)를 통해 공급되어지는 열풍이 건조실(1) 내부로 고르게 안내되어질 수 있도록 다수의 분산가이드(4a)가 일정간격으로 형성된 열풍분산판(4)이 수직방향으로 설치되었으며, 건조실(1)의 측벽에는 제1제어밸브인 솔레노이드밸브(5a)에 의해 개폐되어지는흡입구(5)가 설치되었다. 상기에서 분산가이드(4a)는 상부로 갈수록 길이가 점차 증가되어질 수 있도록 구비함으로서 건조실(1) 내부에 전체적으로 고르게 열풍이 유입되어질 수 있도록 있게된다.In addition, a plurality of dispersion guides 4a are fixed at one side of the drying chamber 1 so that the hot air supplied from the heating means 3 through the hot air supply port 3c can be evenly guided into the drying chamber 1. Hot air dispersion plates 4 formed at intervals were installed in the vertical direction, and suction ports 5 opened and closed by solenoid valves 5a serving as first control valves were installed on the side walls of the drying chamber 1. Dispersion guide (4a) in the above is provided so that the length is gradually increased toward the upper portion so that the hot air can be evenly introduced into the drying chamber (1) as a whole.

또한, 건조실(1)의 타측에는 감압수단으로서 감압블로워(6)가 배풍구(7)에 의해 연통되어져 있으며, 배풍구(7)는 제2제어밸브인 솔레노이드밸브(7a)에 의해 개폐되어질 수 있게된다.On the other side of the drying chamber 1, a pressure reducing blower 6 is communicated by the air outlet 7 as a pressure reducing means, and the air outlet 7 can be opened and closed by the solenoid valve 7a which is the second control valve. Will be.

도면중 미설명 부호 8은 건조실 내부의 압력변화를 측정하기 위한 압력센서, 9는 건조실 내부의 온도변화를 측정하기 위한 온도센서, 10은 각종 온/오프 스위치가 구성되어진 제어판넬을 각각 나타낸다.In the drawings, reference numeral 8 denotes a pressure sensor for measuring a pressure change in a drying chamber, 9 denotes a temperature sensor for measuring a temperature change in the drying chamber, and 10 denotes a control panel in which various on / off switches are configured.

이와같은 구성을 이루는 본 발명 건조장치의 원리는 감압수단을 이용하여 건조실 내부의 공기를 뽑아내며 건조실 내부의 압력을 대기압보다 낮추어 농산물의 수분 이탈을 용이하게 하고 건조실 내부에 위치한 가열장치에 의해 발생된 열로 농산물이 건조되어지게 되는 것이다.The principle of the drying device of the present invention constituting such a configuration is to extract the air inside the drying chamber by using a decompression means and to lower the pressure inside the drying chamber to less than atmospheric pressure to facilitate the water escape of agricultural products and generated by the heating device located inside the drying chamber. The produce is dried by heat.

이를 보다 상세히 살펴보면, 먼저 사용자가 제어판넬(10)을 조작하여 감압수단 및 가열수단을 동작시키면 제1제어밸브인 솔레노이드밸브(5a)에 의해 흡입구(5)가 막혀진 상태에서 감압블로워(6)로 건조실(1) 내부의 공기를 뽑아내어 건조실 내부의 압력을 대기압보다 낮은 상태로 이루게 된다. 그리고 압력센서(8)를 통해 설정압력까지 도달하게 된 것을 확인하면 배풍구(7)에 설치된 제2제어밸브인 솔레노이드밸브(7a)를 동작시켜 배풍구(7)를 닫으면서 감압블로워(6)를 정지시킨다.In more detail, first, when the user operates the pressure reducing means and the heating means by operating the control panel (10), the pressure reducing blower (6) in the state in which the inlet port (5) is blocked by the solenoid valve (5a) which is the first control valve. The air inside the drying chamber 1 is extracted to achieve a pressure lower than atmospheric pressure in the drying chamber. When the pressure sensor 8 reaches the set pressure, the solenoid valve 7a, which is the second control valve installed in the vent port 7, is operated to close the vent port 7 while reducing the pressure reducing blower 6 To stop.

이후, 건조실(1) 내부에 설치된 열풍순환팬(3b)를 가동시킴과 동시에 전기히터(3a)를 가열시키면 내부공기가 전기히터(3a)를 통과되어지면서 열교환작용에 의해 열풍화 되어지고, 이 열풍은 열풍공급구(3c)를 통해 배출되어 화살표로 도시된 바와같은 경로로 상승되어지면서 열풍분산가이드(4a)를 통해 각 건조상자(2)측으로 골고루 전달되어지면서 농산물을 건조하게 되며, 이러한 열풍의 순환이 계속되어지면서 건조과정이 진행되어지게 된다.Thereafter, when the hot air circulation fan 3b installed in the drying chamber 1 is operated and the electric heater 3a is heated at the same time, the internal air is passed through the electric heater 3a and hot-aired by heat exchange. Hot air is discharged through the hot air supply port (3c) and ascends in the path as shown by the arrow, and evenly transmitted to each drying box (2) side through the hot air dispersion guide (4a) to dry the agricultural products, such hot air As the cycle continues, the drying process proceeds.

이때, 건조실(1)은 낮은 압력으로 인하여 농산물의 건조에 소요되어지는 가열에너지를 절감시킬 수 있게된다.At this time, the drying chamber 1 can reduce the heating energy required to dry the agricultural products due to the low pressure.

한편, 농산물의 건조가 진행됨에 있어 건조실(1)은 대기압 이하의 압력을 유지하고 있으므로 농산물 내부에 존재하고 있는 수분이 압력평형을 이루기 위하여 빠른 속도로 수분이 빠져나오게 되면서 건조실(1) 내부에는 고수분이 형성되게 되는데, 이러한 수분을 제거하기 위하여 열풍순환팬(3b)과 전기히터(3a)를 정지시키고 흡입구(5)와 배풍구(7)에 각각 설치되어진 솔레노이드밸브(5a,7a)를 열어 건조실(1) 내부의 공기가 외부와 순환가능하도록 한다.On the other hand, as the drying of the agricultural product proceeds, the drying chamber 1 maintains a pressure below atmospheric pressure, so that the moisture present in the agricultural product quickly escapes moisture to achieve a pressure equilibrium, and the coriander inside the drying chamber 1. In order to remove this moisture, the hot air circulation fan 3b and the electric heater 3a are stopped and the solenoid valves 5a and 7a respectively installed at the inlet port 5 and the vent port 7 are opened. (1) Make the air inside circulate with the outside.

이후, 다시 흡입구(5)의 솔레노이드밸브(5a)를 닫고 감압블로워(6)를 구동시켜 건조실(1) 내부의 압력을 낮추는 방식으로 건조가 완료될 때까지 이 과정을 반복하여 농산물을 건조시킬 수 있게되는 것이다.Thereafter, the solenoid valve 5a of the inlet 5 is again closed, and the pressure reducing blower 6 is driven to lower the pressure in the drying chamber 1, thereby repeating this process until the drying is completed, and the agricultural product can be dried. Will be.

상기 실시예에서 송풍측의 전면에 부착된 전기히터(3a)는 온도조절기로 열풍온도를 제어할 수 있도록 설계됨이 바람직하다.In the above embodiment, the electric heater 3a attached to the front side of the blowing side is preferably designed to control the hot air temperature with a temperature controller.

그리고, 상기에서 본 발명의 특정한 실시예가 설명 및 도시되었지만 본 발명의 농산물 건조장치 구조가 당업자에 의해 다양하게 변형되어 실시될 가능성이 있는 것은 자명한 일이다.And while specific embodiments of the present invention have been described and illustrated above, it is obvious that the structure of the agricultural product drying apparatus of the present invention may be variously modified and implemented by those skilled in the art.

그러나, 이와 같은 변형된 실시예들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시예들은 본 발명의 첨부된 특허청구범위 안에 속한다 해야 할 것이다.However, such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments shall fall within the appended claims of the present invention.

이상에서 살펴본 바와같은 본 발명의 농산물 건조장치 및 건조방법은, 표고버섯과 같이 건조온도 및 시간에 따라 품질의 변화가 큰 농산물을 건조시킴에 있어 건조실 내부의 감압과정과 열풍공급과정을 이용하여 농산물을 건조시킴으로 건조비용 및 건조시간을 단축시킴과 동시에 고품질의 건조가 가능하게 되어 농가소득에 기여할 수 있는 효과를 나타낸다.The agricultural product drying apparatus and drying method of the present invention as described above, in drying the agricultural products with a large change in quality according to drying temperature and time, such as shiitake mushrooms, using the decompression process and the hot air supply process in the drying room Drying reduces the drying cost and drying time and at the same time enables high quality drying, which contributes to farm income.

Claims (4)

소정 공간을 형성하고 있는 건조실의 내부공기를 외부로 강제 배출하여 압력을 강하시키는 감압수단;Pressure reduction means for forcibly discharging the internal air of the drying chamber forming a predetermined space to lower the pressure; 상기 건조실 내부의 공기를 가열하여 순환시키는 가열수단;Heating means for heating and circulating air in the drying chamber; 상기 가열수단에 의해 가열 및 송풍되어지는 열풍이 고르게 분산되어지도록 하기위해 설치되어진 열풍분산 가이드;A hot air dispersion guide provided to distribute the hot air heated and blown by the heating means evenly; 상기 건조실 내부로 외부공기가 인입되는 것을 제어하는 제1제어밸브;를 포함하여 구성되어진 것을 특징으로 하는 감압식 농산물 건조장치.And a first control valve for controlling the introduction of external air into the drying chamber. 청구항 1에 있어서,The method according to claim 1, 상기 감압수단은, 상기 건조실과 일단이 연통 설치되어진 배풍구와;The decompression means may include: an air vent formed at one end in communication with the drying chamber; 상기 배풍구의 개폐를 제어하는 제2제어밸브와;A second control valve controlling opening and closing of the vent hole; 상기 배풍구의 타단에 설치되어진 감압블로워;로 구성되어짐을 특징으로 하는 감압식 농산물 건조장치.Pressure-sensitive agricultural products drying apparatus, characterized in that consisting of; a decompression blower is installed at the other end of the vent. 청구항 1에 있어서,The method according to claim 1, 상기 가열수단은, 고온의 전기히터부;The heating means includes a high temperature electric heater; 건조실 내부의 공기가 상기 전기히터부를 통과하도록 순환시키는 열풍순환팬;으로 구성되어짐을 특징으로 하는 감압식 농산물 건조장치.Pressure-sensitive agricultural products drying apparatus, characterized in that consisting of; hot air circulation fan for circulating the air inside the drying chamber to pass through the electric heater. 농산물이 보관되어지는 건조실을 밀폐시킨 상태에서 내부공기를 외부로 강제 배출하여 압력을 강하시키는 감압단계;A depressurizing step of dropping pressure by forcibly discharging internal air to the outside in a state where the drying chamber in which agricultural products are stored is sealed; 상기 감압되어진 건조실 내부에 고온의 열풍을 발생, 순환시키는 열풍순환단계;A hot air circulation step of generating and circulating high temperature hot air in the decompressed drying chamber; 상기 건조실 내부에서 발생되어진 수분의 제거를 위해 내부공기를 외부와 순환시키는 수분제거단계;를 반복 수행하게 됨을 특징으로 하는 감압식 농산물 건조방법.And a water removal step of circulating the internal air to the outside to remove the water generated in the drying chamber.
KR10-2001-0051859A 2001-08-27 2001-08-27 A decompressed type agicultural products dryer and drying method KR100445162B1 (en)

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KR100653692B1 (en) * 2005-03-04 2006-12-05 강신태 Agriculture products drying method and dried agriculture products under low pressure and moderating temperature environment
KR100734887B1 (en) * 2006-03-23 2007-07-06 이석진 The air conversion equipment farm produce the dry season structure of blow
KR101387169B1 (en) * 2012-03-20 2014-04-24 농업회사법인 주식회사 오제주 Reduced-pressure drying device of recycling type and reduced-pressure drying method of food using the same
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KR20180060432A (en) * 2016-11-29 2018-06-07 (주)에이원엔지니어링 Food dryer
KR20200126072A (en) * 2019-04-29 2020-11-06 주식회사 가이아에너지 Control System Of farm products and aquatic products Dryer
KR20200126074A (en) * 2019-04-29 2020-11-06 주식회사 가이아에너지 Method For Operating of Dryer Having Ceramic Heating Element

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KR100653692B1 (en) * 2005-03-04 2006-12-05 강신태 Agriculture products drying method and dried agriculture products under low pressure and moderating temperature environment
KR100734887B1 (en) * 2006-03-23 2007-07-06 이석진 The air conversion equipment farm produce the dry season structure of blow
KR101428875B1 (en) * 2011-11-30 2014-08-12 주식회사 알티캐스트 System and method for processing security based on http live streaming
KR101387169B1 (en) * 2012-03-20 2014-04-24 농업회사법인 주식회사 오제주 Reduced-pressure drying device of recycling type and reduced-pressure drying method of food using the same
KR20180060432A (en) * 2016-11-29 2018-06-07 (주)에이원엔지니어링 Food dryer
KR20200126072A (en) * 2019-04-29 2020-11-06 주식회사 가이아에너지 Control System Of farm products and aquatic products Dryer
KR20200126074A (en) * 2019-04-29 2020-11-06 주식회사 가이아에너지 Method For Operating of Dryer Having Ceramic Heating Element

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