【０００１】
【発明の属する技術分野】
本発明は、陶芸教室や一般家庭等において、陶器類を焼成処理したり、ガラス体の表面に絵柄の焼付処理したり、或は食品を加熱調理するのに使用する可搬型の多機能窯に関するものである。
【０００２】
【従来の技術】
従来、一般家庭等において陶器類を焼成処理する小型ポータブル型の処理窯として特開昭６２―１０６２２６号に示される電子レンジ型の焼成窯や、実開昭６１―１２３３９４号等に示される家庭用電熱窯があり、家庭用低電圧の電源で陶器類の焼成処理等ができる公知例がある。
【０００３】
【発明が解決しようとする課題】
以上の公知例のうち、前者の電子レンジ型焼成窯は、電磁波によって加熱した加熱体の輻射による二次加熱プロセスのため、加熱効率が低くして均一加熱性に欠けると共に、加熱中の内部状態が透視確認できる開閉蓋つき構造にして外周への断熱対策も不充分な加熱室内で、被焼成物の陶土成形体等を概ね９００℃に長時間保持するので、窯外壁と周辺が異常高温になって危険状態をもたらす難点がある。
【０００４】
一方、前記後者の家庭用電熱窯は、概ね９００℃の高温雰囲気を長時間持続する電熱線の配線形態を安定保持するためには、肉厚にして重い耐火煉瓦で築窯せざるを得ず、窯全体が大形化・重量化して可搬性に欠けることになり、その不具合を防止するために窯壁を肉薄軽量にすると、使用時の窯外壁が高温になって安全性上の問題をもたらす難点がある。
【０００５】
本発明は、以上の従来技術の難点を解消する可搬型多機能窯を提供するものである。
【０００６】
【課題を解決するための手段】
以上の技術課題を解決する本発明の可搬型多機能窯は「上方開口有底の陶質中空円筒体の窯内壁体と、耐火断熱層を介して該窯内壁体を収納する窯外壁体と、空気層を介して該窯外壁体の外周に覆せる覆胴体の組合せからなる開閉蓋つき窯体にして、前記窯内壁体は、溝長手方向の溝壁に放熱ホール群を並設した環状の電熱線収納凹溝を側周外面に多段状に備え、該電熱線収納凹溝に巻き着け装着した電熱線によって、前記窯内壁体内を概ね１０００℃以下の設定温度に昇温保持可能にした構造」になっている。
【０００７】
即ち、本発明の可搬型多機能窯は、前記電熱線収納凹溝を多段状に設けた波形壁板の窯内壁体によって堅牢な機械的強度と広い伝熱面積を有する窯内壁に構成し、その窯内壁体の外周に電熱線を巻き着けセットして、電熱線を加熱室内に露出させることなく保護して配線姿勢の安定と被加熱物の均一加熱を図る構造と、前記覆胴体を空気層を介して覆設して窯外周の高温化を防止する構造を特徴としている。
【０００８】
そして、その窯内壁体は可及的に薄肉にして、かつ、良好な機械的強度を併有する構造にするため例えば１０００℃程度で概ね０．０００００３以下の低熱膨張率にして強い靭性を有する「酸化リチウムを３〜６重量％含む鉱石粉末＝４０〜５５重量％，アルミナを３０重量％以上含む粘土＝２５〜３５重量％，低粘性・耐火性の無機材料＝１５〜２５重量％，が混合された陶土（以下、これをＡ陶土という）」または、「酸化リチウムを３〜６重量％含む鉱石粉末＝４０〜５５重量％，アルミナを３０重量％以上含む粘土＝２５〜３５重量％，低粘性・耐火性無機材料＝１５〜２５重量％，酸化第二鉄・炭化珪素・酸化クロムの少くとも一種を１０〜５０重量％含む組成物＝３〜７重量％が混合された陶土（以下、これをＢ陶土という）」によって概ね５粍壁厚の薄肉筒体に形成される。なお、前記Ａ陶土・Ｂ陶土を組成する前記化学物質の分子記号は下記の化１のとおりである。
【０００９】
【化１】
【００１０】
そして、前記構成の態様として、前記窯内壁体と前記窯外壁体間の耐火断熱層は軽量なセラミックウール充填によって形成され、前記窯外壁体と前記覆胴体間の断熱空気層を、該空気層の下端から上端に貫通する空気対流層形態にする。そして、前記窯内壁体内で各種食材等を加熱調理するための加熱調理用マッフルケースを付設する。
【００１１】
【作用】
以上の構成の本発明の可搬型多機能窯は、電熱線収納凹溝を多段状に設けた前記窯内壁体によって加熱源つき窯内壁を構成するので、その窯内壁体は高温・常温における機械的強度が安定して「変形・ひび割れ」のおそれがなく、電熱線の配設形態が安定すると共に、その窯内壁体に巻き着けた電熱線は窯内に露出することなく有効に保護され、被加熱物の出し入れも電熱線の存在を気にすることなく極めてやり易くなる。そして、その窯内壁体に装着された電熱線は収納凹溝壁に存在する放熱ホール群から窯内へ熱放散するので電熱発生熱がこもることなく窯内放散されて、良好な加熱効率の確保と電熱線の過熱防止による焼損防止ができる。
【００１２】
そして、その窯内壁体の内側表面は、電熱線収納凹溝による階段状凹凸壁形態を有するので、窯内部の加熱室への輻射・対流の熱放散面積が広く、該加熱室内の被加熱物は一様均一にして急速高効率の加熱作用が享受できる。
【００１３】
さらに、本発明の可搬型多機能窯は前記の窯内壁体を用いることから電熱線の配設保持のための肉厚重量物の耐火煉瓦は無用になり、窯全体が小形化・軽量化して良好な可搬性が確保されると共に、断熱空気層を内側に有する覆胴体によって窯外壁をカバーするので、窯取扱者等が接触する窯外周は、窯内を概ね１０００℃に長時間保持しても外気温程度の壁温にして外壁高温によるトラブル発生が防止できる。
【００１４】
さらに、前記の調理用マッフルケースに各種食材等を入れて窯内を３００℃等に適温保持することによって、多様な加熱調理用窯として多機能に使用できる。以上の諸作用がある。
【００１５】
【発明の実施の形態】
以下、本発明一実施例の可搬型多機能窯１（以下、単に多機能窯１という）を図１〜図２を参照して詳しく説明する。即ち、この実施例の多機能窯１は、簡便に手運び移動して陶芸教室での陶芸作品を焼成処理したり、一般家庭において趣味の陶芸作品の焼成処理または各種食材の加熱調理用として多機能に使用する簡便窯にして、上方開口有底の薄肉陶製中空円筒体の窯内壁体２と、この窯内壁体２を中空部に収納する「開閉蓋４つき上方開口中空円筒体の窯外壁体３」と、この窯外壁体３の側周に覆せセットする覆胴体５の３部材の組合せからなり、台脚６の上に立設セットされている。
【００１６】
詳しくは、窯内壁体２は中空部に被加熱物を入れて加熱する窯内壁を形成する部材にして、前記の陶土Ａまたは陶土Ｂの低熱膨張率陶土によって薄肉（５粍厚さ）に形成され、側周外周には「コイル状ニクロム線の電熱線Ｈ」を巻き着け装着する環状凹溝の電熱線収納凹溝７（以下、単に収納凹溝７という）が多段状に凹設されると共に、この収納凹溝７は、窯内壁体２の上端近傍から下端近傍まで単一溝として連続し、かつ、溝長方向に細ピッチで並設して溝壁を円孔に切り抜いた放熱ホール８群を備えている。
【００１７】
そして、この窯内壁体２は公知のセラミックウールを充填した耐熱断熱層９を介して金属製の窯外壁体３の中空部に収納セットされて窯本体１０を構成し、この窯本体１０が上方開放中空胴形態の陶製の覆胴体５に収納されて組合せ結合され、単体の多機能窯１を構成している。そして、窯内壁体２に装着した電熱線Ｈ端のコードを家庭用通常電源に接続することによって、窯内壁体２の内部を概ね１０００℃程度までの任意温度に設定して保持できるようになっている。
【００１８】
そして、この実施例の多機能窯１の窯外壁体３と覆胴体５間は窯本体１０を載置した台脚６の隙間から窯本体１０の上端まで貫通する空気層の対流放熱層１１（層厚さ約５０粍）に設定されており、窯外壁体３の昇温に伴って加熱された空気が自然流上昇対流して窯外に放出され、覆胴体５の昇温を極めて有効に防止するように構成されている。
【００１９】
そして、窯本体１０の下部には「一般家庭の電源に接続する一次側コード１３・スイッチ１４・窯内温度表示部・温度調整ダイヤル」等を有する電気制御部１２が設けられて、二次側の「窯内壁体２に装着した電熱線Ｈ」に接続されており、この電気制御部１２の操作によって窯内壁体２内の加熱室を概ね１０００℃以下の任意温度に昇温保持できる。なお、図中の１５は開閉蓋４に設けた開閉自在の「ピープホール・排気孔」である。
【００２０】
なお、この実施例の多機能窯１は、台脚６・閉鎖状態の開閉蓋４を含む総高さ＝約５５０粍、覆胴体５の直径＝約４３０粍、窯内壁体２は内直径＝約１８０粍・深さ＝約２００粍にして、電熱線Ｈの容量＝１，０００ワット、の諸元である。そして、開閉蓋４はセラミックウールの充填構造である。
【００２１】
続いて、図２を参照して図１実施例の多機能窯１の使用態様を説明する。即ち、図２（Ａ）は陶芸教室作品の陶土素体２０をトレイ２１に載せて窯内壁体２の中空部の加熱室にインサートし、その加熱室を概ね９００℃に昇温保持して焼成処理する状態を示している。そして、図２（Ｂ）は加熱調理用のマッフルケース２２に各種食材２３を入れて概ね３００℃に昇温保持して食用可能に加熱調理する状態を示している。
【００２２】
以上の図１実施例の多機能窯１は前記の作用が存在し、小形コンパクト・持ち運び自在にして家庭用電源によって、簡便に利用できる。そして、耐火断熱層９がセラミックウールの充填からなるので特段に軽量であると共に、窯外壁体３と覆胴体５間に対流空気層１１が存在するので、窯内を概ね１，０００℃に設定しても覆胴体５外周は外気温度程度にして特段の使用上の安全性がある。
【００２３】
さらに、窯内壁体２を前記のＢ陶土で形成したものは、Ｂ陶土中の「酸化第二鉄・炭化珪素・酸化クロム」が昇温状態において遠赤外線を放出するので、陶土作品素体２０に含まれる自由水（陶土の無機材中に結合していない遊離状態の水分）の加熱蒸発を著しく促進して、良好にして迅速な焼成処理を可能にする特有作用がある。
【００２４】
なお、図１実施例の多機能窯１は前記の食材の加熱調理の他「コーヒーの焙煎・薬草の加熱処理」等多用途の加熱窯として有効に活用できると共に、窯本体１０が３キログラム弱の軽量にして熱容量が小なることから、必要な温度に昇温するまでの時間が極めて速く（３００℃まで約１０分）、断続的に昇温させて食品調理する場合の消費電気量が少く、低コスト能率的な加熱調理ができる。
【００２５】
なお、本発明の多機能窯は、前記の実施例に限定されず、窯内壁体２を前記のＡ陶土・Ｂ陶土以外の陶土で形成したり、耐火断熱層９を石綿層にしたり、対流空気層１１を単なる断熱空気層（積極的に対流させない断熱空気層）等にする変化がある。そして、前記の窯外壁体３は「窯内壁体２と耐火断熱層１１」を保持するに足る機械的強度と形状を有すれば足りるので、格子壁・網目壁形態にすることがあり、さらに、前記の調理用ケースは前記のＡ・Ｂ陶土による陶質ケース、または金属ケースのものが適宜使用される。そして、電熱線収納凹溝７はヘリカルコイル形状にすることがある。
【００２６】
【発明の効果】
以上の説明のとおり、本発明の可搬型多機能窯は、陶土素体の焼成処理や食材の加熱調理用として陶芸教室や一般家庭等において簡便に利用できると共に、軽量・コンパクトにして可搬性に優れ、その上良好な加熱効率と優れた機械的性質を有して耐久性が良く、極めて便利に活用できる。
【図面の簡単な説明】
【図１】本発明一実施例の可搬型多機能窯を示し、（Ａ）はその正面断面図、（Ｂ）はその構成部材の窯内壁体の部分斜視図
【図２】図１実施例の可搬型多機能窯の使用状態を示し、（Ａ）（Ｂ）ともその正面図
【符号の説明】
１ 可搬型多機能窯
２ 窯内壁体
３ 窯外壁体
４ 開閉蓋
５ 覆胴体
６ 台脚
７ 電熱線収納凹溝
８ 放熱ホール
９ 耐火断熱層
１０ 窯本体
１１ 対流空気層
１２ 制御部
２０ 陶土素体
２１ トレイ
２２ マッフルケース
２３ 食材
Ｈ 電熱線[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable multifunctional kiln used for firing ceramics, baking a picture on the surface of a glass body, or heating and cooking food in a pottery classroom or a general household. Things.
[0002]
[Prior art]
Conventionally, as a small portable processing kiln for firing pottery in general households and the like, a microwave oven type kiln shown in JP-A-62-106226 and a household type kiln shown in Japanese Utility Model Laid-Open No. 61-123394 have been known. There is an electric heating furnace, and there is a known example in which pottery can be baked using a low-voltage power supply for home use.
[0003]
[Problems to be solved by the invention]
Among the above known examples, the former microwave oven type kiln has a low heating efficiency due to the secondary heating process by radiation of the heating body heated by the electromagnetic wave, lacks uniform heating properties, and the internal state during heating. Has a structure with an opening / closing lid that can be seen through, so that the porcelain clay and other objects to be fired are kept at approximately 900 ° C for a long time in a heating chamber with insufficient heat insulation on the outer periphery. There are drawbacks that lead to danger.
[0004]
On the other hand, in order to stably maintain the wiring form of the heating wire that lasts a high temperature atmosphere of about 900 ° C. for a long time, the latter household heating furnace has to be built with a thick and heavy refractory brick. The entire kiln becomes large and heavy and lacks portability.If the wall of the kiln is made thin and light in order to prevent the problem, the outer wall of the kiln will become hot during use, and safety problems will occur. There are drawbacks.
[0005]
The present invention provides a portable multi-function kiln which solves the above-mentioned disadvantages of the prior art.
[0006]
[Means for Solving the Problems]
The portable multifunctional kiln of the present invention which solves the above technical problem is a kiln inner wall of a ceramic hollow cylindrical body having an upper opening and a bottom, and a kiln outer wall which stores the kiln inner wall through a fireproof heat insulating layer. A kiln body with an opening / closing lid made of a combination of a cover body that can be covered on the outer periphery of the kiln outer wall body through an air layer, wherein the kiln inner wall has an annular shape in which heat dissipation holes are arranged side by side on a groove wall in a groove longitudinal direction. The heating wire storage groove of (1) is provided in a multi-stage shape on the outer circumferential surface, and the heating wire wound around the heating wire storage groove can be heated and maintained at a set temperature of approximately 1000 ° C. or less in the inner wall of the kiln. Structure ".
[0007]
That is, the portable multifunctional kiln of the present invention is constituted by a kiln inner wall having robust mechanical strength and a wide heat transfer area by a kiln inner wall body of a corrugated wall plate provided with the heating wire storage concave grooves in a multi-step shape, A heating wire is wrapped around the inner wall of the kiln, and the heating wire is protected without exposing the heating wire to the inside of the heating chamber to stabilize the wiring posture and uniformly heat the object to be heated. It features a structure in which it is covered with a layer to prevent the outer periphery of the kiln from becoming hot.
[0008]
The kiln inner wall is made as thin as possible, and has a low thermal expansion coefficient of approximately 0.000003 or less at about 1000 ° C. and a strong toughness, for example, in order to have a structure having good mechanical strength. Ore powder containing 3 to 6% by weight of lithium oxide = 40 to 55% by weight, clay containing 30% by weight or more of alumina = 25 to 35% by weight, low-viscosity and fire-resistant inorganic material = 15 to 25% by weight (Hereinafter referred to as "A pottery clay") or "Ore powder containing 3 to 6% by weight of lithium oxide = 40 to 55% by weight, clay containing 30% or more of alumina = 25 to 35% by weight, low Porcelain clay mixed with a viscous / refractory inorganic material = 15 to 25% by weight and a composition containing at least one of ferric oxide, silicon carbide and chromium oxide at 10 to 50% by weight = 3 to 7% by weight This is called B pottery clay.) Thus it is generally thin-walled tubular body 5 MirimetorukabeAtsu. In addition, molecular symbols of the chemical substances composing the A clay and the B clay are shown in the following Chemical Formula 1.
[0009]
Embedded image
[0010]
And, as an aspect of the configuration, the refractory heat insulating layer between the kiln inner wall and the kiln outer wall is formed by lightweight ceramic wool filling, and the heat insulating air layer between the kiln outer wall and the cover body is formed by the air layer. Is formed in an air convection layer form penetrating from the lower end to the upper end. A heating cooking muffle case for heating and cooking various foods and the like in the kiln inner wall is provided.
[0011]
[Action]
In the portable multifunctional kiln of the present invention having the above-described configuration, the kiln inner wall with the heating source is constituted by the kiln inner wall provided with the heating wire receiving groove in a multi-stage manner, and the kiln inner wall is a machine at high temperature and room temperature. The strength of the heating wire is stable, there is no risk of `` deformation and cracking '', the arrangement of the heating wire is stable, and the heating wire wrapped around the kiln inner wall is effectively protected without being exposed inside the kiln, It is extremely easy to take in and out the object to be heated without worrying about the existence of the heating wire. The heating wire attached to the inner wall of the kiln dissipates heat into the kiln from the radiating holes existing in the recessed groove walls, so the heat generated by the electric heat is dissipated in the kiln without being trapped, ensuring good heating efficiency. In addition, burnout can be prevented by preventing overheating of the heating wire.
[0012]
Since the inner surface of the inner wall of the kiln has a stepped uneven wall shape formed by the concave groove for heating wire, the area for dissipating heat of radiation and convection to the heating chamber in the kiln is wide, and the object to be heated in the heating chamber is large. Is uniform, and a rapid and highly efficient heating action can be enjoyed.
[0013]
Furthermore, since the portable multifunctional kiln of the present invention uses the above-mentioned kiln inner wall, thick and heavy refractory bricks for arranging and holding heating wires become unnecessary, and the entire kiln is reduced in size and weight. Good portability is ensured, and the outer wall of the kiln is covered by a covering body having an insulating air layer inside. Also, the wall temperature is set to about the outside temperature, so that troubles caused by the high wall temperature can be prevented.
[0014]
Further, by putting various foods and the like in the cooking muffle case and keeping the inside of the kiln at an appropriate temperature such as 300 ° C., it can be used for various functions as a variety of heating and cooking kilns. There are the above functions.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a portable multifunctional kiln 1 (hereinafter, simply referred to as a multifunctional kiln 1) according to an embodiment of the present invention will be described in detail with reference to FIGS. That is, the multi-function kiln 1 of this embodiment is easily carried and moved to bake a pottery work in a pottery classroom, or to bake a hobby pottery work in an ordinary household or to heat and cook various foods. A simple kiln to be used for the function is a kiln inner wall 2 of a thin ceramic hollow cylinder having an upper opening and a bottom, and the kiln inner wall 2 is housed in a hollow portion. The body 3 "is composed of a combination of three members of a cover body 5 that is set to cover the outer periphery of the kiln outer wall 3 and is set upright on the pedestal 6.
[0016]
More specifically, the kiln inner wall 2 is a member that forms a kiln inner wall for heating by putting an object to be heated in a hollow portion, and is formed to be thin (5 mm thick) by the above-described pottery clay A or pottery clay B having a low coefficient of thermal expansion. The heating wire storage groove 7 (hereinafter simply referred to as the storage groove 7) of an annular groove around which the “heating wire H of a coiled nichrome wire” is wound and mounted is formed in a multi-stage shape on the side circumference. In addition, the storage groove 7 is continuous as a single groove from the vicinity of the upper end to the vicinity of the lower end of the inner wall body 2 of the kiln, and is a heat radiation hole in which a groove wall is cut into a circular hole in parallel with a fine pitch in a groove length direction. Eight groups are provided.
[0017]
The kiln inner wall 2 is housed and set in a hollow portion of the metal kiln outer wall 3 via a heat-resistant and heat-insulating layer 9 filled with a known ceramic wool to constitute a kiln main body 10. It is housed in an open hollow body-shaped ceramic covering body 5 and combined and combined to form a single multifunctional kiln 1. Then, by connecting the cord at the end of the heating wire H attached to the kiln inner wall 2 to a normal household power source, the inside of the kiln inner wall 2 can be set and maintained at an arbitrary temperature of about 1000 ° C. or so. ing.
[0018]
Then, the convection heat radiation layer 11 of the air layer penetrating from the gap between the pedestal 6 on which the kiln body 10 is mounted to the upper end of the kiln body 10 between the kiln outer wall 3 and the cover body 5 of the multifunctional kiln 1 of this embodiment. The thickness of the layer is set to about 50 m), and the air heated by the temperature rise of the outer wall 3 of the kiln is naturally convected and discharged to the outside of the kiln. It is configured to prevent.
[0019]
An electric control unit 12 having a "primary cord 13, a switch 14, a kiln temperature display unit, and a temperature adjustment dial" connected to a power supply of a general household is provided at a lower portion of the kiln body 10, and is provided on a secondary side. Is connected to the “heating wire H attached to the kiln inner wall 2”, and by operating the electric control unit 12, the heating chamber in the kiln inner wall 2 can be heated and maintained at an arbitrary temperature of approximately 1000 ° C. or less. Reference numeral 15 in the drawing denotes a freely openable and closable “peep hole / exhaust hole” provided on the opening / closing lid 4.
[0020]
The multifunctional kiln 1 of this embodiment has a total height including the pedestal 6 and the open / close lid 4 in a closed state = approximately 550 mm, the diameter of the cover body 5 = approximately 430 mm, and the inner diameter of the kiln inner wall 2 = The specifications are such that the heating wire H has a capacity of 1,000 watts with a thickness of about 180 mm and a depth of about 200 mm. The opening / closing lid 4 has a structure filled with ceramic wool.
[0021]
Subsequently, a usage mode of the multi-function kiln 1 of the embodiment in FIG. 1 will be described with reference to FIG. That is, in FIG. 2A, a pottery clay body 20 of a pottery classroom work is placed on a tray 21 and inserted into a heating chamber in the hollow portion of the inner wall 2 of the kiln, and the heating chamber is heated to approximately 900 ° C. and fired. This shows the state of processing. FIG. 2B shows a state in which various foodstuffs 23 are put into a muffle case 22 for heating and cooking, and the temperature is kept at approximately 300 ° C. to cook the food edible.
[0022]
The multifunctional kiln 1 of the above-described embodiment of FIG. 1 has the above-described function, and is compact and portable, and can be easily used with a household power supply. The refractory and heat insulating layer 9 is made of ceramic wool, so that it is particularly lightweight. In addition, since the convection air layer 11 exists between the outer wall 3 of the kiln and the covering body 5, the inside of the kiln is set at about 1,000 ° C. Even so, the outer periphery of the cover body 5 is set at about the outside air temperature, and there is a special safety in use.
[0023]
Further, in the case where the inner wall 2 of the kiln is formed of the B clay, the "ferric oxide / silicon carbide / chromium oxide" in the B clay emits far-infrared rays when the temperature is increased. Has a unique effect of significantly promoting the heat evaporation of free water (free water not bound in the inorganic material of the clay) contained in the porcelain so as to enable good and quick firing treatment.
[0024]
In addition, the multifunctional kiln 1 of the embodiment of FIG. 1 can be effectively used as a multipurpose heating kiln such as “roasting coffee and heating herbal medicine” in addition to the above-described cooking of the ingredients, and the kiln body 10 weighs 3 kg. Since the heat capacity is small due to low weight, the time required to raise the temperature to the required temperature is extremely fast (about 10 minutes to 300 ° C.), and the amount of electricity consumed when cooking food by intermittently raising the temperature is reduced. Small, low-cost and efficient cooking.
[0025]
The multifunctional kiln of the present invention is not limited to the above embodiment, and the kiln inner wall 2 may be formed of clay other than the above-mentioned A clay and B clay, the refractory and heat-insulating layer 9 may be formed of an asbestos layer, or convection. There is a change such that the air layer 11 is simply a heat-insulating air layer (a heat-insulating air layer that does not actively convect). Since the kiln outer wall 3 only needs to have enough mechanical strength and shape to hold “the kiln inner wall 2 and the fire-resistant heat-insulating layer 11”, the kiln outer wall 3 may have a lattice wall / mesh wall form. As the cooking case, a porcelain case made of the AB ceramic clay or a metal case is appropriately used. The heating wire receiving groove 7 may be formed in a helical coil shape.
[0026]
【The invention's effect】
As described above, the portable multifunctional kiln of the present invention can be easily used in a pottery classroom or a general home for baking of a ceramic body or for heating and cooking foods, and is lightweight and compact for portability. It has excellent durability, good heating efficiency and excellent mechanical properties, and can be used very conveniently.
[Brief description of the drawings]
1A and 1B show a portable multifunctional kiln according to an embodiment of the present invention, wherein FIG. 1A is a front sectional view thereof, and FIG. 1B is a partial perspective view of a kiln inner wall of its constituent members. (A) and (B) are front views of the portable multi-function kiln.
DESCRIPTION OF SYMBOLS 1 Portable multifunctional kiln 2 Kiln inner wall 3 Kiln outer wall 4 Opening / closing lid 5 Covering body 6 Base leg 7 Heating wire storage groove 8 Heat radiating hole 9 Fireproof insulation layer 10 Kiln body 11 Convection air layer 12 Control part 20 Porcelain body 21 tray 22 muffle case 23 foodstuff H heating wire
