JPH09192026A - Exothermic body - Google Patents
Exothermic bodyInfo
- Publication number
- JPH09192026A JPH09192026A JP8029882A JP2988296A JPH09192026A JP H09192026 A JPH09192026 A JP H09192026A JP 8029882 A JP8029882 A JP 8029882A JP 2988296 A JP2988296 A JP 2988296A JP H09192026 A JPH09192026 A JP H09192026A
- Authority
- JP
- Japan
- Prior art keywords
- water
- heating element
- quicklime
- reaction
- mesh
- 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.)
- Pending
Links
Landscapes
- Cookers (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は水を添加することに
より発熱して飲食物等を加熱するための発熱体に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating element for heating food and drink by adding heat to generate heat.
【0002】[0002]
【従来の技術とその問題点】飲食物等を加熱する発熱体
には粒状の生石灰を主な組成とする発熱剤を不織布等の
透水性の袋に収納したものがあり、発熱体を水に浸ける
等することにより生石灰が水和反応により発熱して飲食
物等を加熱するようになっている。2. Description of the Related Art There is a heating element for heating food and drink which contains a heating agent mainly composed of granular quicklime in a water-permeable bag such as nonwoven fabric. When soaked, quicklime generates heat due to a hydration reaction to heat food and drink.
【0003】生石灰のみに水を加えると、生石灰は水と
急激に反応して発熱し使用者が火傷を負う危険性や生石
灰が膨張して袋を破るおそれがあるので、従来の発熱体
では生石灰の急激な反応を抑える目的で生石灰に塩化マ
グネシウムを混入したものを発熱剤としていた。When water is added only to quick lime, the quick lime reacts rapidly with water to generate heat, which may cause burns to the user and the quick lime may expand and break the bag. In order to suppress the rapid reaction of, the exothermic agent was a mixture of quicklime and magnesium chloride.
【0004】飲食物を安全かつ充分に加熱するためには
反応の速度を適切に制御し、しかも反応の持続時間を長
く保つ必要があり、反応速度については使用者が発熱剤
に水を添加するのに掛かる時間は発熱体が高温になら
ず、その後速やかに最高温度に達するように制御するの
が望ましく、反応の持続時間を長く保つには発熱体内の
全ての発熱剤が反応するようにしなければならない。In order to safely and sufficiently heat food and drink, it is necessary to appropriately control the reaction rate and keep the reaction duration long. Regarding the reaction rate, the user adds water to the exothermic agent. It is desirable to control the heating time so that the heating element does not reach a high temperature and then quickly reaches the maximum temperature, and in order to keep the reaction duration long, all the heating agents in the heating element must react. I have to.
【0005】従来の発熱体では塩化マグネシウムを混入
して反応を抑制してはいるが、それでも1〜2秒後には
最高温度に達して蒸気が立ち上り、注水時に使用者が充
分に注意を払わないと火傷を負う危険性があった。In the conventional heating element, magnesium chloride is mixed in to suppress the reaction, but even after 1 to 2 seconds, the maximum temperature is reached and steam rises, and the user does not pay sufficient attention when pouring water. There was a risk of getting burned.
【0006】また、生石灰に水を加えると生石灰の表面
が生石灰の水和化合物である糊状の水酸化カルシウムに
変化するが、この糊状の水酸化カルシウムが生石灰の表
面を覆って生石灰内部に水が滲み込むのを妨げ、反応で
きない生石灰が残って充分な反応持続時間を得ることが
できなかった。本発明の目的は安全に使用できてしかも
反応持続時間を長く保つことができる発熱体を提供する
ことにある。[0006] When water is added to quicklime, the surface of quicklime is changed into paste-like calcium hydroxide which is a hydrated compound of quicklime. This paste-like calcium hydroxide covers the surface of quicklime and enters the interior of quicklime. Water was prevented from seeping in, and unreacted quicklime remained, so that a sufficient reaction duration could not be obtained. An object of the present invention is to provide a heating element that can be used safely and that can maintain a long reaction duration.
【0007】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る発熱体は重量比にして生石灰が85〜
90%、無水塩化マグネシウムが15〜10%の混合物
に酸化アルミニウムを約1%添加して発熱剤となし、こ
の発熱剤を透水性の袋に収納してなり、前記生石灰は純
度96%以上にして粒径が150〜600μmのもので
構成し、また、前記透水性の袋は55〜70メッシュの
透水用の小孔を有する材質のもので構成したものとして
ある。In order to achieve the above object, the heating element according to the present invention contains quick lime of 85 to 85 in weight ratio.
About 1% of aluminum oxide was added to a mixture of 90% and anhydrous magnesium chloride of 15 to 10% to form an exothermic agent, and the exothermic agent was stored in a water-permeable bag, and the quicklime had a purity of 96% or more. And a particle size of 150 to 600 μm, and the water-permeable bag is made of a material having small holes for water transmission of 55 to 70 mesh.
【0008】[0008]
【実施例】以下、本発明に係る発熱体の具体例について
詳細に説明する。本実施例の発熱体1は図1に示すよう
に透水性の袋2に発熱剤3を収納したものとしてあっ
て、透水性の袋2は55〜70メッシュの小孔(網目)
を有する例えば不織布製のものを使用しており、発熱剤
3は重量比にして生石灰が85〜90%、無水塩化マグ
ネシウムが15〜10%の混合物に触媒たる酸化アルミ
ニウムを約1%添加したものとしてあり、前記生石灰は
純度96%以上にして粒径が150〜600μmの粉末
状のものを使用している。EXAMPLES Specific examples of the heating element according to the present invention will be described in detail below. As shown in FIG. 1, the heating element 1 of this embodiment has a water-permeable bag 2 containing a heating agent 3, and the water-permeable bag 2 has small holes (mesh) of 55 to 70 mesh.
For example, a non-woven fabric is used, and the exothermic agent 3 is a mixture of quicklime of 85 to 90% and anhydrous magnesium chloride of 15 to 10% in weight ratio, to which about 1% of aluminum oxide as a catalyst is added. The quicklime is used in the form of powder having a purity of 96% or more and a particle size of 150 to 600 μm.
【0009】上述のように構成した発熱体1は、例えば
図2に示すように耐水性の箱形容器4の内底に入れてそ
の上に被加熱物5を入れ、容器の蓋を閉めて容器の側面
に開けた注水口6から発熱剤の質量とほぼ同量の水を注
入して使用する。The heating element 1 constructed as described above is placed in the inner bottom of a water-resistant box-shaped container 4 as shown in FIG. 2, the object to be heated 5 is placed on the box-shaped container 4, and the lid of the container is closed. From the water injection port 6 opened on the side surface of the container, approximately the same amount of water as the mass of the exothermic agent is injected and used.
【0010】注水口6は、図2において仮想線で示すよ
うに注水後には閉じることができるようにしてあって、
発熱反応による蒸気が注水口から逃げないようになって
いる。なお、図中の符号7は被加熱物を載せたトレーを
示している。The water inlet 6 is designed so that it can be closed after water injection, as shown by the phantom line in FIG.
The vapor from the exothermic reaction is prevented from escaping from the water inlet. The reference numeral 7 in the figure indicates a tray on which an object to be heated is placed.
【0011】容器内に注入された水は発熱体1の袋2を
透過して袋内に入り、発熱剤3と反応する。注入された
水は全てが発熱剤の水和反応に使用されるのではなく、
一部は加熱されて水蒸気となり、容器4内に充満して被
加熱物5を全方向から加熱するようになっている。The water injected into the container penetrates the bag 2 of the heating element 1 and enters the bag to react with the heating agent 3. Not all of the injected water is used for the hydration of the exothermic agent,
A part is heated to become water vapor, which fills the container 4 and heats the object to be heated 5 from all directions.
【0012】次に、発熱体の表面温度が時間の経過とと
もにどのように変化するかを測定し、下記事項について
試験した結果について述べる。 A:生石灰の粒径と反応持続時間との相関性 B:酸化アルミニウムの添加量と反応立ち上がり時間と
の相関性 C:袋のメッシュと反応開始時間との相関性 なお、上記各事項の試験はいずれも室温20℃において
行い、発熱剤の質量を270g、注水量を270ccと
し、生石灰と無水塩化カルシウムとの混合割合は全て上
記実施例のものと同じ割合とし、上記A、B事項につい
ては袋に60メッシュの不織布よりなるものを使用して
発熱体の上面中央部の温度を測定した。Next, how the surface temperature of the heating element changes with the lapse of time was measured, and the results of tests on the following items will be described. A: Correlation between particle size of quick lime and reaction duration B: Correlation between addition amount of aluminum oxide and reaction start-up time C: Correlation between bag mesh and reaction start time All were carried out at room temperature of 20 ° C., the mass of the exothermic agent was 270 g, the amount of water injection was 270 cc, the mixing ratio of quicklime and anhydrous calcium chloride was all the same as those in the above-mentioned examples, and the above A and B matters were bags. The temperature of the central portion of the upper surface of the heating element was measured using a non-woven fabric of 60 mesh.
【0013】<A:生石灰の粒径と反応持続時間との相
関性について>生石灰に粒径が150〜600μmの粉
末状のものを使用した本発明に係る発熱体と、粒径が1
〜5mmのフレーク状のものを使用した従来の発熱体に
ついての測定結果は図3に示すとおりであり、この結果
から粒径の小なる本発明の発熱体は従来のものに比して
反応持続時間が長く、しかも最高温度も5〜10℃程度
高く保たれることがわかる。<A: Correlation between particle size of quick lime and reaction duration> A heating element according to the present invention using powdered lime having a particle size of 150 to 600 μm and a particle size of 1
The measurement results for the conventional heating element using flakes of ~ 5 mm are as shown in Fig. 3. From these results, the heating element of the present invention having a smaller particle size has a longer reaction duration than the conventional one. It can be seen that the time is long and the maximum temperature is kept high at about 5 to 10 ° C.
【0014】この結果を検討するに、生石灰の粒径が小
である本発明の発熱体は生石灰と水との接触面積が大
で、生石灰の殆ど全てが水と反応できることによると考
えられる。The results are examined. It is considered that the heating element of the present invention in which the particle size of quick lime is small has a large contact area between quick lime and water, and almost all quick lime can react with water.
【0015】<B:酸化アルミニウムの添加量と反応立
ち上がり時間との相関性について>発熱剤に1%の酸化
アルミニウムを添加した本発明に係る発熱体と、酸化ア
ルミニウムを無添加、0.5%添加、2%添加したもの
についての測定結果は図4に示すとおりであり、1%の
酸化アルミニウムを添加した本発明の発熱体が反応立ち
上がり時間が最も早いことがわかる。<B: Correlation between Addition Amount of Aluminum Oxide and Reaction Start-up Time> The heating element according to the present invention in which 1% of aluminum oxide is added to the heating agent, and no addition of aluminum oxide, 0.5% The measurement results for the addition of 2% and the addition of 2% are shown in FIG. 4, and it can be seen that the heating element of the present invention to which 1% of aluminum oxide is added has the fastest reaction rise time.
【0016】<C:袋のメッシュと反応開始時間との相
関性>袋の素材に55メッシュ、60メッシュ、70メ
ッシュの不織布を使用した本発明に係る発熱体と、45
メッシュの不織布を使用したものについての測定結果は
図5に示すとおりであり、本発明に係る発熱体はいずれ
の発熱体も水を添加後約10秒後に最高温度に達してい
るのに対し、45メッシュのものは急激に温度が上昇
し、しかも最高温度が低いことがわかる。<C: Correlation between bag mesh and reaction start time> A heating element according to the present invention which uses a 55 mesh, 60 mesh or 70 mesh non-woven fabric as a bag material, 45
The measurement results for the one using the non-woven fabric of mesh are as shown in FIG. 5, and all the heating elements according to the present invention reached the maximum temperature about 10 seconds after the addition of water. It can be seen that the 45 mesh has a sharply increased temperature and a low maximum temperature.
【0017】この結果を検討するに、本発明に係る発熱
体では水を添加するのに係る時間(10秒程度)を経過
してから最高温度に達するので、使用者が火傷をするよ
うな恐れが殆どなくて安全であるが、一方、45メッシ
ュの不織布を使用した発熱体では水が袋内にすぐに流入
してすぐに最高温度に達する反面、水が発熱体の全体に
は行き渡らず、反応できずに残った生石灰があって反応
時間を持続できなかったものと考えられる。Considering this result, in the heating element according to the present invention, the maximum temperature is reached after a lapse of time (about 10 seconds) related to the addition of water, so that the user may be burned. However, in the case of a heating element that uses a 45-mesh non-woven fabric, on the other hand, water immediately flows into the bag and reaches the maximum temperature immediately, while water does not reach the entire heating element. It is probable that the reaction time could not be maintained due to the remaining quick lime that could not react.
【0018】なお、80メッシュ以上の不織布を使用し
た発熱体についても同様に試験を行ったが、不織布の目
が細か過ぎたため水が袋内に殆ど流入できず、温度変化
を測定することができなかった。The same test was carried out for a heating element using a non-woven fabric of 80 mesh or more, but since the non-woven fabric was too fine, almost no water could flow into the bag and the temperature change could be measured. There wasn't.
【0019】[0019]
【発明の作用、効果】本発明に係る発熱体は上述した構
成のものとしてあるので、次の作用効果を奏し得る。発
熱体に水を添加すると水が透水性の袋の小孔を透過して
袋内の発熱剤と反応し、発熱する。Since the heating element according to the present invention has the above-mentioned structure, the following operational effects can be obtained. When water is added to the heating element, the water passes through the small holes of the water-permeable bag and reacts with the heating agent in the bag to generate heat.
【0020】この際、袋に55〜70メッシュの小孔を
有するものを使用しているので、水が発熱体の局部に集
まらず、全体にくまなく行き渡り、しかも発熱剤の主な
組成分たる生石灰は粒径が150〜600μmのものと
してあるので、水との接触面積が大であり、従来の発熱
体のように生石灰の水和化合物である糊状の水酸化カル
シウムに覆われて水と反応できない生石灰が残るような
ことがなく、殆ど全ての発熱剤が水と反応して反応持続
時間を長く保つことができ、しかも最高温度を高く維持
することができる。At this time, since the bag having the small holes of 55 to 70 mesh is used, the water does not collect at the local part of the heating element and spreads throughout the whole, and moreover, it is the main composition of the heating agent. Since quicklime has a particle size of 150 to 600 μm, it has a large contact area with water and is covered with pasty calcium hydroxide, which is a hydrated compound of quicklime, like a conventional heating element. Almost all exothermic agents can react with water to keep the reaction duration long, and the maximum temperature can be kept high without leaving unreacted quicklime.
【0021】また、発熱剤は生石灰と無水塩化カルシウ
ムとを混合したものとしてあって、無水塩化カルシウム
によって生石灰の急激な水和反応が抑制されるととも
に、1%の酸化アルミニウムを添加してあるので、所要
の時間後には速やかに反応が行われ、安全に使用するこ
とができる。The exothermic agent is a mixture of quick lime and anhydrous calcium chloride, and since the rapid hydration reaction of quick lime is suppressed by the anhydrous calcium chloride, 1% of aluminum oxide is added. After the required time, the reaction is promptly carried out and it can be used safely.
【図1】本発明の発熱体の実施例を示す一部破断平面
図。FIG. 1 is a partially cutaway plan view showing an embodiment of a heating element of the present invention.
【図2】本実施例の発熱体の使用例を示す縦断面図。FIG. 2 is a vertical cross-sectional view showing an example of use of the heating element of this embodiment.
【図3】生石灰の粒径と反応持続時間との相関性につい
て試験を行った結果を示すグラフ。FIG. 3 is a graph showing the results of tests conducted on the correlation between the particle size of quicklime and the reaction duration.
【図4】酸化アルミニウムの添加量と反応立ち上がり時
間との相関性について試験を行った結果を示すグラフ。FIG. 4 is a graph showing the results of tests conducted on the correlation between the amount of aluminum oxide added and the reaction rise time.
【図5】袋のメッシュと反応開始時間との相関性につい
て試験を行った結果を示すグラフ。FIG. 5 is a graph showing the results of tests conducted on the correlation between the bag mesh and the reaction start time.
1 発熱体 2 袋 3 発熱剤 4 容器 5 被加熱物 6 注水口 7 トレー 1 heating element 2 bag 3 exothermic agent 4 container 5 heated object 6 water inlet 7 tray
Claims (1)
塩化マグネシウムが15〜10%の混合物に酸化アルミ
ニウムを約1%添加して発熱剤となし、この発熱剤を透
水性の袋に収納してなり、前記生石灰は純度96%以上
にして粒径が150〜600μmのもので構成し、ま
た、前記透水性の袋は55〜70メッシュの透水用の小
孔を有する材質のもので構成してなる発熱体。1. A heat generating agent is prepared by adding about 1% of aluminum oxide to a mixture of 85 to 90% by weight of quick lime and 15 to 10% by weight of anhydrous magnesium chloride. The quicklime is made of a material having a purity of 96% or more and a particle size of 150 to 600 μm, and the water permeable bag is made of a material having small holes for water transmission of 55 to 70 mesh. A heating element made up of components.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8029882A JPH09192026A (en) | 1996-01-24 | 1996-01-24 | Exothermic body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8029882A JPH09192026A (en) | 1996-01-24 | 1996-01-24 | Exothermic body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09192026A true JPH09192026A (en) | 1997-07-29 |
Family
ID=12288354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8029882A Pending JPH09192026A (en) | 1996-01-24 | 1996-01-24 | Exothermic body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09192026A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007023611A1 (en) * | 2005-08-22 | 2007-03-01 | Mycoal Co., Ltd. | Heating element and device for heating article |
WO2007122900A1 (en) * | 2006-04-21 | 2007-11-01 | Mycoal Co., Ltd. | Apparatus for heating food |
JP2017225356A (en) * | 2016-06-20 | 2017-12-28 | ライオン株式会社 | Indirect heating type smoking device |
KR101937706B1 (en) | 2017-09-15 | 2019-04-11 | 한국에너지기술연구원 | High temperature generating device |
CN110204367A (en) * | 2019-05-21 | 2019-09-06 | 吉林省农业科学院 | A kind of hot start method of low-temperature biological fermentation heap |
KR102051476B1 (en) | 2018-06-11 | 2019-12-04 | 한국에너지기술연구원 | Heat-rising apparatus of superheated steam |
KR20200114280A (en) | 2019-03-28 | 2020-10-07 | 한국에너지기술연구원 | Decompression apparatus for superheated steam |
KR20200114278A (en) | 2019-03-28 | 2020-10-07 | 한국에너지기술연구원 | High-tmeperature steam generator with helical coiled heat exchanger |
KR20200114284A (en) | 2019-03-28 | 2020-10-07 | 한국에너지기술연구원 | Heat-rising apparatus of superheated steam |
US11054130B2 (en) | 2018-06-11 | 2021-07-06 | Korea Institute Of Energy Research | Apparatus for raising the temperature of superheated steam and ultra-high temperature steam generator |
-
1996
- 1996-01-24 JP JP8029882A patent/JPH09192026A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007023611A1 (en) * | 2005-08-22 | 2007-03-01 | Mycoal Co., Ltd. | Heating element and device for heating article |
JPWO2007023611A1 (en) * | 2005-08-22 | 2009-02-26 | マイコール株式会社 | Heating element and article heating device |
WO2007122900A1 (en) * | 2006-04-21 | 2007-11-01 | Mycoal Co., Ltd. | Apparatus for heating food |
JP2017225356A (en) * | 2016-06-20 | 2017-12-28 | ライオン株式会社 | Indirect heating type smoking device |
KR101937706B1 (en) | 2017-09-15 | 2019-04-11 | 한국에너지기술연구원 | High temperature generating device |
KR102051476B1 (en) | 2018-06-11 | 2019-12-04 | 한국에너지기술연구원 | Heat-rising apparatus of superheated steam |
US11054130B2 (en) | 2018-06-11 | 2021-07-06 | Korea Institute Of Energy Research | Apparatus for raising the temperature of superheated steam and ultra-high temperature steam generator |
KR20200114280A (en) | 2019-03-28 | 2020-10-07 | 한국에너지기술연구원 | Decompression apparatus for superheated steam |
KR20200114278A (en) | 2019-03-28 | 2020-10-07 | 한국에너지기술연구원 | High-tmeperature steam generator with helical coiled heat exchanger |
KR20200114284A (en) | 2019-03-28 | 2020-10-07 | 한국에너지기술연구원 | Heat-rising apparatus of superheated steam |
US11035393B2 (en) | 2019-03-28 | 2021-06-15 | Korea Institute Of Energy Research | Decompression apparatus for superheated steam |
CN110204367A (en) * | 2019-05-21 | 2019-09-06 | 吉林省农业科学院 | A kind of hot start method of low-temperature biological fermentation heap |
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