JP2616693B2 - Electromagnetic wave heating device - Google Patents
Electromagnetic wave heating deviceInfo
- Publication number
- JP2616693B2 JP2616693B2 JP6101465A JP10146594A JP2616693B2 JP 2616693 B2 JP2616693 B2 JP 2616693B2 JP 6101465 A JP6101465 A JP 6101465A JP 10146594 A JP10146594 A JP 10146594A JP 2616693 B2 JP2616693 B2 JP 2616693B2
- Authority
- JP
- Japan
- Prior art keywords
- container
- electromagnetic wave
- heating device
- tip
- heated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims description 27
- 238000003756 stirring Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Constitution Of High-Frequency Heating (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、マイクロ波を含む電磁
波を用いて廃棄物、特に生もの等の水分を多く含むもの
を加熱させ、脱水するための加熱装置の構成に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating apparatus for heating and dewatering wastes, particularly those containing a large amount of water, such as raw materials, using electromagnetic waves including microwaves.
【０００２】[0002]
【従来の技術】水の誘電損失が大きいことを利用した電
磁波加熱は産業用をはじめ家庭用の電子レンジなどで既
に広く使用されている。従来の加熱装置は、加熱対象物
を入れた金属空洞の中に電磁波を導く構成になってい
る。加熱対象物の発熱は対象物の誘電損失と対象物内で
の電界の強さに比例する。たとえば生ごみのように水分
が多量に含まれていれば、水の誘電損失により加熱され
る。加熱を持続すると水分はやがて蒸発してしまい、電
磁波加熱で脱水処理を行うことができる。2. Description of the Related Art Electromagnetic heating utilizing the large dielectric loss of water is already widely used in industrial and household microwave ovens. A conventional heating device is configured to guide an electromagnetic wave into a metal cavity containing an object to be heated. The heat generated by the object is proportional to the dielectric loss of the object and the strength of the electric field within the object. For example, if a large amount of water is contained, as in the case of garbage, heating is caused by the dielectric loss of water. If heating is continued, moisture will evaporate soon, and dehydration treatment can be performed by electromagnetic wave heating.
【０００３】[0003]
【発明が解決しようとする課題】加熱対象物での発熱が
どの程度大きいかは誘電損失の大きさと電界の強さに比
例する。電界を強くするには、入射電磁波の強さを一定
とすれば、電磁波が加熱対象物に反射なく吸い込まれる
ようにしなければならない。エネルギーの有効利用の観
点から、入射エネルギーを効率よく加熱対象物に吸収す
ることが望まれており、これを解決するために加熱容器
を凸型の形状にし、凸の先端から電磁波を入射すれば反
射を極力少なくすることが可能である。The degree of heat generated by the object to be heated is proportional to the magnitude of the dielectric loss and the strength of the electric field. In order to increase the electric field, if the intensity of the incident electromagnetic wave is fixed, the electromagnetic wave must be absorbed by the object to be heated without reflection. From the viewpoint of effective use of energy, it is desired that the incident energy be efficiently absorbed by the object to be heated.To solve this, if the heating vessel is formed into a convex shape and electromagnetic waves are incident from the convex tip, It is possible to minimize reflection.
【０００４】ところで、電界の強さは加熱物の内部で一
定ではなく、凸の先端部に近い部分が最も電界が強くな
る。そのため、吸収された電磁波エネルギーは容器の先
端部にある加熱物をまず加熱する。その結果、加熱物が
水分を多量に含む生ごみの場合は先端部から水の蒸発が
始まる。すなわち、加熱容器内での加熱むらが生じると
いう欠点があった。By the way, the intensity of the electric field is not constant inside the object to be heated, and the electric field is strongest in a portion near the convex tip. Therefore, the absorbed electromagnetic wave energy first heats the heated object at the tip of the container. As a result, when the heated material is garbage containing a large amount of water, water starts to evaporate from the tip. That is, there is a disadvantage that uneven heating occurs in the heating container.
【０００５】本発明はこの欠点を無くした加熱容器を有
する加熱効率の良いかつ加熱むらのない加熱装置を提供
することを目的とする。[0005] It is an object of the present invention to provide a heating device having a heating vessel which eliminates the above drawbacks, has a high heating efficiency, and has no uneven heating.
【０００６】[0006]
【課題を解決するための手段】本発明の電磁波加熱装置
は、加熱物を入れる容器内に、加熱物を攪拌するための
攪拌羽を挿入し、これを回転せしめることにより加熱物
を攪拌し、容器内に加熱むらが生じることを防止する。
前記攪拌羽は、非磁性、低誘電損失材よりなり、羽の先
端が容器凸部の先端に位置するように容器の底面部から
挿入され、軸に固定された１枚、または複数枚の羽が軸
を中心に回転することにより容器凸部の先端にある加熱
物を容器の底面部方向に押しやるように攪拌する構成で
ある。According to the electromagnetic wave heating apparatus of the present invention, a stirring blade for stirring a heated object is inserted into a container for holding the heated object, and the heated object is stirred by rotating the stirring blade. Prevents uneven heating in the container.
The stirring blade is made of a non-magnetic, low dielectric loss material, and is inserted from the bottom of the container such that the tip of the blade is located at the tip of the container protrusion, and one or more blades fixed to a shaft are provided. Is heated at the tip of the container convex part by rotating around the axis.
In this configuration, the object is agitated so as to push the object toward the bottom of the container .
【０００７】容器の凸の形状は、円錐型またはお椀型の
ものが適している。[0007] The convex shape of the container is suitably conical or bowl-shaped.
【０００８】[0008]
【実施例】次に、本発明について図面を参照して説明す
る。図１は本発明の一実施例を示す電磁波加熱装置の構
成図である。マイクロ波発生装置１のマグネトロンから
導波路２にマイクロ波が導かれる。導波路２は縦型に配
置し、下から上にマイクロ波出力が導かれる。導波路２
の途中に下向きに凸の樹脂性の円錐型容器３が置かれ、
その中に加熱物４が入れられている。装置の蓋は導波路
の端に取り付けられており、開口部があり気体は抜ける
がマイクロ波は漏れないような電磁遮蔽構造のものと
し、ここでは穴径の小さなパンチングメタル５を使用し
ている。攪拌羽６は容器の底面から、攪拌羽の先端が容
器凸部の先端に位置するように挿入され、攪拌羽を軸を
中心にして回転せしめることにより加熱物を攪拌する。Next, the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of an electromagnetic wave heating device showing one embodiment of the present invention. The microwave is guided from the magnetron of the microwave generator 1 to the waveguide 2. The waveguide 2 is arranged vertically, and a microwave output is guided from bottom to top. Waveguide 2
A resinous conical container 3 that is convex downward is placed in the middle of
The heating object 4 is placed therein. The lid of the device is attached to the end of the waveguide and has an electromagnetic shielding structure that has an opening and allows gas to escape but does not leak microwaves. Here, a punching metal 5 having a small hole diameter is used. . The stirring blade 6 is inserted from the bottom of the container such that the tip of the stirring blade is positioned at the tip of the convex portion of the container, and stirs the heated object by rotating the stirring blade around the axis.
【０００９】容器、および攪拌羽は電磁波で加熱される
ことは必要ないので、低損失の誘電材料、セラミックス
などで構成することが望ましい。Since the container and the stirring blade do not need to be heated by an electromagnetic wave, it is preferable that the container and the stirring blade are made of a low-loss dielectric material, ceramics or the like.
【００１０】攪拌羽は図２に示すように、軸に１枚、ま
たは複数枚の羽が固定され、軸を中心に回転することに
より羽の先端部の加熱物を上部に押しやる方向に攪拌す
る。図２では１枚の羽が軸に固定されているが、これは
２枚以上の複数枚あってもよい。As shown in FIG. 2, one or more blades are fixed to the shaft, and the stirring blade is rotated around the shaft to stir the heated material at the tip of the blade upward. . In FIG. 2, one wing is fixed to the shaft, but there may be two or more wings.
【００１１】加熱物が加熱される速度はそれほど早いも
のではなく、実験によれば７００ｇの生ごみを１０００
ｗのマイクロ波（２．４５ＧＨｚ）で加熱、脱水するた
めには数分間必要である。このようなことから攪拌羽の
回転速度はあまり早いことは必要でなく、０．５〜１０
ｒｐｍ程度で十分である。[0011] The heating rate of the heated material is not so fast.
It takes several minutes to heat and dehydrate with microwaves of 2.45 GHz (2.45 GHz). For this reason, the rotation speed of the stirring blade does not need to be very high,
About rpm is sufficient.
【００１２】[0012]
【発明の効果】本発明の電磁波加熱装置を用いることに
よって、加熱物に加熱むらを生じさせずに均一に、かつ
効率良く加熱することが可能となる。By using the electromagnetic wave heating device of the present invention, it is possible to heat the object to be heated uniformly and efficiently without causing uneven heating.
【図１】本発明の一実施例を示す電磁波加熱装置の構成
を示した図である。FIG. 1 is a diagram showing a configuration of an electromagnetic wave heating device according to an embodiment of the present invention.
【図２】本発明の加熱装置の攪拌羽を示した図である。FIG. 2 is a view showing a stirring blade of the heating device of the present invention.
１ 電磁波発生装置 ２ 導波路 ３ 楔型容器 ４ 加熱対象物 ５ パンチングメタル ６ 攪拌羽 REFERENCE SIGNS LIST 1 electromagnetic wave generator 2 waveguide 3 wedge-shaped container 4 object to be heated 5 punching metal 6 stirring blade
Claims (2)
路と、加熱物を入れる容器と、加熱物を攪拌する攪拌羽
を有し、前記容器は非磁性、低誘電損失材よりなる凸形
の形状をしており、容器の凸の先端から電磁波を入射す
る構成であることを特徴とする電磁波加熱装置。An electromagnetic wave generator, a waveguide for guiding an electromagnetic wave, a container for holding a heated object, and a stirring blade for stirring the heated object, wherein the container is made of a nonmagnetic, low dielectric loss material. An electromagnetic wave heating device having a shape as described above, wherein the electromagnetic wave is incident from a convex tip of the container.
なり、羽の先端が容器凸部の先端に位置するように容器
の底面部から挿入され、軸に固定された１枚、または複
数枚の羽が軸を中心に回転することにより容器凸部の先
端にある加熱物を容器の底面部方向に押しやるように攪
拌する構成であることを特徴とする請求項１記載の電磁
波加熱装置。2. The stirring blade is made of a non-magnetic, low dielectric loss material, is inserted from the bottom of the container such that the tip of the blade is located at the tip of the convex portion of the container, and is fixed to a shaft. Alternatively, the tip of the convex part of the container is
The electromagnetic wave heating device according to claim 1, wherein the heating device at the end is stirred so as to push the heated material toward the bottom of the container .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6101465A JP2616693B2 (en) | 1994-05-17 | 1994-05-17 | Electromagnetic wave heating device |
| US08/381,444 US5523548A (en) | 1994-01-31 | 1995-01-31 | Electromagnetic wave heater having a cone-shaped container whose tapered portion is pointed and directed toward the electromagnetic wave generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6101465A JP2616693B2 (en) | 1994-05-17 | 1994-05-17 | Electromagnetic wave heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07312284A JPH07312284A (en) | 1995-11-28 |
| JP2616693B2 true JP2616693B2 (en) | 1997-06-04 |
Family
ID=14301468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6101465A Expired - Lifetime JP2616693B2 (en) | 1994-01-31 | 1994-05-17 | Electromagnetic wave heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2616693B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634210B (en) * | 2021-07-01 | 2023-01-17 | 江苏大学 | Microwave hydrothermal treatment device and method for organic wastes |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58175051A (en) * | 1982-04-07 | 1983-10-14 | Canon Inc | character processing device |
| JPH0765844B2 (en) * | 1989-11-10 | 1995-07-19 | 三洋電機株式会社 | Microwave dryer |
-
1994
- 1994-05-17 JP JP6101465A patent/JP2616693B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07312284A (en) | 1995-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970121 |