JP7446572B2 - Heat treatment equipment - Google Patents
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- JP7446572B2 JP7446572B2 JP2021113038A JP2021113038A JP7446572B2 JP 7446572 B2 JP7446572 B2 JP 7446572B2 JP 2021113038 A JP2021113038 A JP 2021113038A JP 2021113038 A JP2021113038 A JP 2021113038A JP 7446572 B2 JP7446572 B2 JP 7446572B2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
本発明は加熱処理装置に関し、特に食材や飼料等の殺菌や乾燥・焙煎等に使用される簡単な構造の過熱水蒸気含有ガス発生装置を備えた過熱水蒸気含有ガスを用いる加熱処理装置に関するものである。 The present invention relates to a heat treatment device, and more particularly to a heat treatment device that uses a superheated steam-containing gas and is equipped with a simple-structured superheated steam-containing gas generator used for sterilizing, drying, roasting, etc. foodstuffs and feedstuffs. be.
従来、食品を腐敗させないため、あるいは加工するため、高温の乾燥空気を食品に当てて乾燥や焙煎をすることが行われており、また、食品に高温の過熱水蒸気を照射して殺菌することも行われている。 Traditionally, in order to prevent food from spoiling or to process it, food has been exposed to high-temperature dry air to dry or roast it, and food has also been sterilized by irradiating it with high-temperature superheated steam. is also being carried out.
しかしながら、食材に対して簡単な構造・低コストで熱風による乾燥と過熱水蒸気による殺菌・焙煎ができる装置は提案されていない。 However, no apparatus has been proposed that has a simple structure and low cost and can dry foods using hot air and sterilize and roast foods using superheated steam.
本発明はそうした従来の課題を解決するものであり、下記構成の過熱水蒸気含有ガスを用いる加熱処理装置である。
〔１〕横設された円筒状のドラム（１０）と、
その上方に取着された上部中空室（２０）と、
前記円筒状のドラム（１０）の底部付近の周壁に、同ドラム（１０）の円周の接線方向に沿って過熱水蒸気含有ガス噴出口（９）が取着された過熱水蒸気含有ガス供給装置と、
前記ドラム（１０）壁面で過熱水蒸気含有ガス供給口（９）と上部中空室（２０）との間に配設された被加熱処理物の供給管路（３０）とから構成され、
かつ、上部中空室（２０）はその横断面が下方に向かって斬縮し、下端部の開口部が上記円筒状のドラム（１０）の上壁部に開口して取着され、また上部中空室（２０）の上部には被加熱処理物の取出口（２１）が設けられてなり、
そして前記過熱水蒸気含有ガス供給装置は、一方端が閉塞され他方端が開口した長尺の筒体(１)と、前記筒体(１)の閉塞された一方端部に取り付けられた燃料と空気を供給するためのバーナ（２）と、前記筒体内のバーナの先方位置に設置された耐火蓄熱性成形体（３）と、前記筒体内の閉塞部近傍の壁に設けられた、加圧水と加圧空気の混合物ミストを耐火蓄熱性成形体に向けて噴射する噴射ノズル（４）とからなることを特徴とする過熱水蒸気含有ガスを用いる加熱処理装置。
〔２〕横設された円筒状のドラム（１０）と、
その上方に取着された上部中空室（２０）と、
前記円筒状のドラム（１０）の底部付近の周壁に、同ドラム（１０）の円周の接線方向に沿って過熱水蒸気含有ガス噴出口（９）が取着された過熱水蒸気含有ガス供給装置と、
前記ドラム（１０）壁面で過熱水蒸気含有ガス供給口（９）と上部中空室（２０）との間に配設された被加熱処理物の供給管路（３０）とから構成され、
そして前記過熱水蒸気含有ガス供給装置は、一方端が閉塞され他方端が開口した長尺の筒体（１）と、前記筒体の閉塞された一方端部に取り付けられた燃料と空気を供給するためのバーナ（２）と、前記筒体内のバーナの先方位置に設置された耐火蓄熱性成形体（３）と、前記筒体内の閉塞部近傍の壁に設けられた、加圧水と加圧空気の混合物ミストを耐火蓄熱性成形体に向けて噴射する噴射ノズル（４）と、前記長尺の筒体(１)を被包するごとく設けられた外筒（１Ａ）からなり、かつ同外筒（１Ａ）は内径及び延長長さが前記長尺の筒体（１）よりも長いものであることを特徴とする過熱水蒸気含有ガスを用いる加熱処理装置。
〔３〕筒体（１）内のバーナ（２）の先方位置に設置された耐火蓄熱性成形体（３）が、窒化ケイ素、アルミナ、シリカ、ジルコニア、コージエライト又は炭化ケイ素から選ばれるいずれかのセラミックで構成されるセラミック製のものであることを特徴とする前記〔１〕又は〔２〕に記載の過熱水蒸気含有ガスを用いる加熱処理装置。
The present invention solves such conventional problems, and is a heat treatment apparatus using superheated steam-containing gas having the following configuration.
[1] A horizontally installed cylindrical drum (10),
an upper hollow chamber (20) attached above;
A superheated steam-containing gas supply device in which a superheated steam-containing gas outlet (9) is attached to a peripheral wall near the bottom of the cylindrical drum (10) along a tangential direction of the circumference of the drum (10). ,
It is composed of a supply pipe line (30) for the object to be heated, which is disposed on the wall surface of the drum (10) between the superheated steam-containing gas supply port (9) and the upper hollow chamber (20),
The upper hollow chamber (20) has a cross section that is contracted downward, and the opening at the lower end is opened and attached to the upper wall of the cylindrical drum (10). The upper part of the chamber (20) is provided with an outlet (21) for taking out the material to be heated,
The superheated steam-containing gas supply device includes a long cylinder (1) with one end closed and the other end open, and fuel and air attached to the closed one end of the cylinder (1). a burner (2) for supplying pressurized water, a refractory heat storage molded body (3) installed in the cylinder at a position ahead of the burner, and a pressurized water and pressurized A heat treatment device using superheated steam-containing gas, comprising an injection nozzle (4) that injects a mixture mist of compressed air toward a refractory heat storage molded body.
[2] A horizontally installed cylindrical drum (10),
an upper hollow chamber (20) attached above;
A superheated steam-containing gas supply device in which a superheated steam-containing gas outlet (9) is attached to a peripheral wall near the bottom of the cylindrical drum (10) along a tangential direction of the circumference of the drum (10). ,
It is composed of a supply pipe line (30) for the object to be heated, which is disposed on the wall surface of the drum (10) between the superheated steam-containing gas supply port (9) and the upper hollow chamber (20),
The superheated steam-containing gas supply device supplies a long cylinder (1) with one end closed and the other end open, and fuel and air attached to the closed one end of the cylinder. a burner (2) for pressurized water and pressurized air; It consists of an injection nozzle (4) that injects the mixture mist toward the refractory heat storage molded body, and an outer cylinder (1A) provided so as to enclose the elongated cylinder (1), and the outer cylinder (1A). 1A) is a heat treatment apparatus using a gas containing superheated steam, characterized in that the inner diameter and extension length are longer than the long cylinder (1).
[3] The refractory heat storage molded body (3) installed in the forward position of the burner (2) in the cylinder (1) is made of silicon nitride, alumina, silica, zirconia, cordierite, or silicon carbide. The heat treatment apparatus using superheated steam-containing gas according to [1] or [2] above, which is made of ceramic.
本発明によれば、食材や飼料等の被加熱処理物に対して過熱水蒸気と熱風による乾燥と殺菌・焙煎をすることができる簡単な構造の低コストな装置が提供される。
そして、従来食材の乾燥装置として使用されていた食材の熱風乾燥装置、例えば１．特許３１８２６２７号公報「豆腐殻乾燥装置」や２．特開２００４－２３９５１６号公報「熱風発生装置」に簡単な改良を加えるだけで、すなわち該１．特許公報の「熱風供給路（３４）」に過熱水蒸気含有ガスを供給すること、あるいは２．公開公報の「熱風筒（１０）」内に本発明の耐火蓄熱性成形体を載置するだけの簡単な改変を加えるだけで本発明の過熱水蒸気含有ガスによる無酸素雰囲気の加熱処理装置に改変することができる。
According to the present invention, there is provided a low-cost device with a simple structure that can dry, sterilize, and roast objects to be heated, such as foodstuffs and feed, using superheated steam and hot air.
A hot air drying device for foodstuffs that has been conventionally used as a drying device for foodstuffs, such as 1. Patent No. 3182627 "Tofu shell drying device" and 2. By simply adding a simple improvement to the "hot air generator" disclosed in Japanese Patent Application Laid-open No. 2004-239516, 1. Supplying superheated steam-containing gas to the "hot air supply path (34)" in the patent publication, or 2. The heat treatment apparatus of the present invention in an oxygen-free atmosphere using superheated steam-containing gas can be modified by simply making a modification such as placing the refractory heat storage molded body of the present invention in the "hot air cylinder (10)" of the publication. can do.
本発明の実施の形態を図面に基づいて説明する。
図１に示す装置は、本発明の加熱処理装置（細片状食材の殺菌・焙煎装置）であり、
図において、被加熱処理物である食材細片が供給される円筒状のドラム（１０）が横設されており、その内部には多数のセラミックボール（１１）が収容されている。
食材細片としては、おから、米糠、米粉、ふすま、魚粉、椎茸栽培用使用済みおが屑等が採用される。
また、セラミックボール（１１）としてはアルミナセラミック、窒化ケイ素セラミック、炭化ケイ素セラミック、ジルコニアセラミック等が採用される。
Embodiments of the present invention will be described based on the drawings.
The apparatus shown in FIG. 1 is a heat treatment apparatus (sterilization/roasting apparatus for strip-like foodstuffs) of the present invention,
In the figure, a cylindrical drum (10) to which food particles to be heated are supplied is horizontally installed, and a large number of ceramic balls (11) are housed inside the drum.
As the food particles, okara, rice bran, rice flour, bran, fish meal, used sawdust for cultivating shiitake mushrooms, etc. are used.
Further, as the ceramic ball (11), alumina ceramic, silicon nitride ceramic, silicon carbide ceramic, zirconia ceramic, etc. are used.
円筒状のドラム（１０）の上方には、箱筒状に形成された上部中空室２０が配置され、その下端がドラム（１０）に開口・連通するとともに、その側面の上端部には、熱処理された食材細片を取り出すための取出口（２１）が突設されている。
また、円筒状のドラム（１０）の底部付近の周面には、ドラム（１０）の円周の接線方向に沿って配設された過熱水蒸気含有ガス供給口（９）の先端が開設されている。
さらに、ドラム（１０）壁において、過熱水蒸気含有ガス供給口（９）と上部中空室（２０）との間には、食材細片をドラム（１０）内に供給するための食材細片供給通路（３０）が、その先端をドラム（１０）の周壁に開口して付設され、その上方には、食材細片を定量供給するためのロータリーフィーダ（３１）が設けられている。
Above the cylindrical drum (10), an upper hollow chamber 20 formed in a box-tube shape is arranged, and its lower end opens and communicates with the drum (10), and the upper end of the side surface is heated. A take-out port (21) is provided in a protruding manner for taking out the cooked food strips.
Further, the tip of a superheated steam-containing gas supply port (9) arranged along the tangential direction of the circumference of the drum (10) is provided on the circumferential surface near the bottom of the cylindrical drum (10). There is.
Furthermore, in the wall of the drum (10), between the superheated steam-containing gas supply port (9) and the upper hollow chamber (20), there is a food strip supply passage for supplying food strips into the drum (10). (30) is attached with its tip opening in the peripheral wall of the drum (10), and above it is provided a rotary feeder (31) for quantitatively feeding food strips.
上記図１の装置を使用して、過熱水蒸気含有ガス供給口（９）から、円筒状のドラム（１０）内に過熱水蒸気含有ガスを送給し、また食材細片供給通路（３０）から食材細片を供給すると、円筒状のドラム（１０）内で食材細片がセラミックボール（１１）と接触して拡散されながら過熱水蒸気含有ガスと接触して加熱処理される。
そして、加熱処理されて比重が軽くなった食材細片は上部中空室（２０）を上昇して取出口（２１）から外部に取り出される。
Using the apparatus shown in FIG. 1, superheated steam-containing gas is fed into the cylindrical drum (10) from the superheated steam-containing gas supply port (9), and food material is fed from the food material strip supply passage (30). When the food particles are supplied, the food particles are brought into contact with the ceramic balls (11) and diffused within the cylindrical drum (10), and are then brought into contact with the superheated steam-containing gas and heat-treated.
Then, the food particles whose specific gravity has been reduced by the heat treatment ascend through the upper hollow chamber (20) and are taken out from the outlet (21).
図２は本発明実施例に係る過熱水蒸気含有ガス発生装置の要部構成説明図であり、一方端が閉塞され他方端が開口した長尺の筒体（１）と、同筒体（１）の閉塞された一方端部に取り付けられた燃料と空気を供給するためのバーナ（２）と、前記筒体内のバーナの先方位置に設置された耐火蓄熱性成形体（３）と、前記筒体内の閉塞部近傍の壁に設けられた、加圧水と加圧空気の混合物ミストを噴射する噴射ノズル（４）とから構成されている。
また、図３は図２に示す過熱水蒸気含有ガス発生装置の筒体（１）を外筒（１Ａ）で被包した構成説明図であり、気体導入口（１Ｂ）から冷却用空気又は不活性ガスを導入する。
FIG. 2 is an explanatory diagram of the main part configuration of the superheated steam-containing gas generator according to the embodiment of the present invention, which includes a long cylinder (1) with one end closed and the other end open, and the same cylinder (1). A burner (2) for supplying fuel and air attached to one closed end of the cylinder, a refractory heat storage molded body (3) installed at a position ahead of the burner inside the cylinder, and It consists of an injection nozzle (4) that is installed on the wall near the closed part of the cylinder and that sprays a mist of a mixture of pressurized water and pressurized air.
Moreover, FIG. 3 is a configuration explanatory diagram in which the cylinder (1) of the superheated steam-containing gas generator shown in FIG. 2 is covered with an outer cylinder (1A). Introduce gas.
本発明に係る一方端が閉塞され他方端が開口した長尺の筒体（１）は、例えばステンレススチール（例えばＳＵＳ３１０Ｓ（２５Ｃｒ－２０Ｎｉ））などの耐熱性の金属で製作された円筒、角筒等の筒体である。
この長尺の筒体(１)内に設置される耐火蓄熱性成形体（３）は、アルミナ、窒化ケイ素、ジルコニア、コージエライト、炭化ケイ素等のセラミックで構成され、バーナーの火炎に接して１，０００℃前後に加熱され高温を保持するものである。
なお、耐火蓄熱性成形体（３）は多孔質のものが表面積も多いので好ましいが、特に熱衝撃に強いものが好ましく、窒化ケイ素セラミックは非常に好ましいものである。
また、成形体の所々に多数の貫通孔を設けたものであっても良い。
本装置では、その高温を保持した耐火蓄熱性成形体（３）の表面に向けて、同筒体（１）の閉塞部近傍の壁に設けられた噴射ノズルから加圧水と加圧空気の混合物ミストを噴射する。
すると、高温の耐火蓄熱性成形体（３）の表面に当たった加圧水と加圧空気の混合物ミストが瞬時に加熱されて膨大で高温の過熱水蒸気となって長尺の筒体(１)の開口部（過熱水蒸気含有ガス供給口）（９）方向へ噴出する。
The long cylindrical body (1) with one end closed and the other end open is a cylinder or square cylinder made of a heat-resistant metal such as stainless steel (for example, SUS310S (25Cr-20Ni)). It is a cylindrical body.
The refractory heat storage molded body (3) installed in this elongated cylinder (1) is made of ceramic such as alumina, silicon nitride, zirconia, cordierite, silicon carbide, etc. It is heated to around 000°C and maintains a high temperature.
It is preferable that the refractory heat storage molded body (3) be porous since it has a large surface area, but one that is particularly resistant to thermal shock is preferable, and silicon nitride ceramic is very preferable.
Further, the molded body may be provided with a large number of through holes here and there.
In this device, a mixture mist of pressurized water and pressurized air is sprayed from an injection nozzle installed on the wall near the closed part of the cylindrical body (1) toward the surface of the refractory heat storage molded body (3) that maintains the high temperature. Inject.
Then, the mixture mist of pressurized water and pressurized air that hits the surface of the high-temperature refractory heat-storage molded body (3) is instantaneously heated and becomes a huge amount of high-temperature superheated steam that flows through the opening of the long cylindrical body (1). part (superheated steam-containing gas supply port) (9) direction.
なお、水と空気の混合物ミストは、単なる加圧水とは異なり、水粒子の粒径が非常に細かく、１５～３０μｍなので、耐火蓄熱性成形体（３）の表面に当たっても結露にならず、瞬間的に気化して過熱水蒸気となる。
この際、水は４００℃の過熱水蒸気になると、その体積が２，５００倍以上に膨張する。
そのため、バーナー４からの燃料ガスが空気と反応して生じる炭酸ガスや水蒸気や窒素ガスも混有した混合ガスが筒体(１)内で生成するが、ミスト水の体積膨張が膨大なため、筒体(１)から噴出する混合ガスは、過熱水蒸気の含有率が８０％以上のものとなる。
したがって、この混合ガス（過熱水蒸気含有ガス）は無酸素状態のガスであって、被加熱処理物の食材を酸化させることがない。すなわち、食材を酸化させずに殺菌・焙煎等を行うことができる。
Note that, unlike pressurized water, the water and air mixture mist has very fine water particles of 15 to 30 μm in size, so even if it hits the surface of the fire-resistant heat storage molded body (3), it does not form condensation and is instantaneous. It vaporizes and becomes superheated steam.
At this time, when water becomes superheated steam at 400°C, its volume expands more than 2,500 times.
Therefore, a mixed gas containing carbon dioxide, water vapor, and nitrogen gas produced by the reaction of the fuel gas from the burner 4 with the air is generated in the cylinder (1), but since the volumetric expansion of the mist water is enormous, The mixed gas ejected from the cylinder (1) has a superheated steam content of 80% or more.
Therefore, this mixed gas (superheated steam-containing gas) is an oxygen-free gas and does not oxidize the food to be heated. That is, sterilization, roasting, etc. can be performed without oxidizing the food.
次に本発明の実施例について説明する。
実施例１；
図１、図３～図５に示す装置を用いて実験をした。
まず、図２に示す過熱水蒸気含有ガス発生装置の、筒体（１）の閉塞された一方端部に取り付けられた燃料と空気を供給するためのバーナ（２）から火炎を前記筒体内のバーナの先方位置に設置された耐火蓄熱性成形体（３）に照射して高温に加熱し、次いでその高温に加熱された耐火蓄熱性成形体（３）に対して、前記筒体内の閉塞部近傍の壁に設けられた噴射ノズル（４）から加圧水と加圧空気の混合物ミストを噴射した。
その結果、長尺の筒体（１）開口部（９）から水蒸気ガス（Ｈ2Ｏ）８０％以上を含む８００℃のガスが勢いよく噴出した。
Next, examples of the present invention will be described.
Example 1;
Experiments were conducted using the apparatus shown in FIGS. 1 and 3 to 5.
First, in the superheated steam-containing gas generator shown in FIG. The refractory and heat storage molded body (3) installed at the forward position of the cylinder is irradiated and heated to a high temperature, and then the refractory and heat storage molded body (3) heated to the high temperature is exposed to the vicinity of the closed part in the cylinder. A mixture mist of pressurized water and pressurized air was injected from an injection nozzle (4) provided on the wall of the container.
As a result, gas at 800° C. containing 80% or more of water vapor gas (H 2 O) was vigorously ejected from the opening (9) of the long cylinder (1).
本例で用いられる、一方端が閉塞され他方端が開口した長尺の筒体（１）は、ステンレススチール（ＳＵＳ３１０Ｓ）で製作された。
まず、一方端が閉塞され他方端が開口した長尺の筒体（１）を厚み２ｍｍのステンレス鋼；ＳＵＳ３１０Ｓで作成した。
そのサイズは胴体直径が１０１．６ｍｍ、全長が７７０ｍｍであり、筒体（１）の一方端にバーナー（２）を取着し、また噴射ノズル（４）を取着した。
さらに図４に示すごとく、筒体（１）内のバーナー（２）の先方位置に、ステンレス鋼；ＳＵＳ３１０Ｓ製の籠状容器（３ａ）に多数の窒化ケイ素セラミックボール（３ｂ）を充填して製作された耐火蓄熱性成形体（３）を配置した。
該耐火蓄熱性成形体（３）としては、厚み３ｍｍのＳＵＳ３１０Ｓ製板に直径５ｍｍの穴を０．９個／１０ｍｍ2穿設した板を用いて作成された高さ６０ｍｍ×幅６０ｍｍ×長さ８０ｍｍのパンチングメタル製の籠状容器（３ａ）内に直径１０ｍｍの窒化ケイ素セラミック製のボール（３ｂ）を一杯に充填したものを使用した。
本発明の耐火蓄熱性成形体（３）として、窒化ケイ素セラミックは非常に好適なものであり、耐熱衝撃性に強く、高温の窒化ケイ素セラミックに加圧空気（０．３ＭＰａ）と加圧水の混合物ミストを直接噴射しても亀裂が入らず長期間安定的に使用することができた。
耐熱金属製の籠状の耐火蓄熱性成形体（３）は、その後端部が筒体（１）内のバーナー（２）から２００ｍｍ離れた位置に配置された。
そして、前記長尺の筒体(１)の内壁面と耐火蓄熱性成形体（３）の外面との間に筒体胴体部の断面積の４０～６０％の間隙を設けた。
The elongated cylindrical body (1) with one end closed and the other end open, used in this example, was made of stainless steel (SUS310S).
First, a long cylindrical body (1) having one end closed and the other end open was made of stainless steel; SUS310S with a thickness of 2 mm.
Its size was 101.6 mm in diameter and 770 mm in total length, and a burner (2) was attached to one end of the cylinder (1), and an injection nozzle (4) was also attached.
Furthermore, as shown in Fig. 4, a cage-like container (3a) made of stainless steel (SUS310S) is filled with a large number of silicon nitride ceramic balls (3b) at a position ahead of the burner (2) inside the cylinder (1). The refractory heat storage molded body (3) was placed.
The fire-resistant heat storage molded body (3) was made using a 3 mm thick SUS310S plate with 0.9 holes/10 mm 2 of 5 mm in diameter, and had dimensions of 60 mm in height x 60 mm in width x length. A cage-like container (3a) made of 80 mm punched metal and filled with silicon nitride ceramic balls (3b) each having a diameter of 10 mm was used.
Silicon nitride ceramic is very suitable as the refractory heat storage molded body (3) of the present invention, and has strong thermal shock resistance, and a mixture of pressurized air (0.3 MPa) and pressurized water is applied to the high-temperature silicon nitride ceramic. Even when injected directly, no cracks appeared and it could be used stably for a long period of time.
The cage-shaped refractory and heat storage molded body (3) made of heat-resistant metal was placed at a position where its rear end was 200 mm away from the burner (2) in the cylinder (1).
A gap of 40 to 60% of the cross-sectional area of the body of the cylinder was provided between the inner wall surface of the elongated cylinder (1) and the outer surface of the refractory heat storage molded body (3).
そこで、バーナー（２）から燃料のＬＰＧ２ｍ3／ｈと、空気８．６ｍ3／ｈを噴射し、また噴射ノズルから加圧空気（０．３ＭＰａ）と加圧水の混合物ミスト（水滴直径２０μｍ）（加圧空気；水＝５００；１）を１５０ｍｌ／ｍｉｎを１０００℃に加熱された耐火蓄熱性成形体（３）に向けて噴射した。
その結果、水蒸気ガス（Ｈ2Ｏ）８０％以上を含む８００℃の過熱水蒸気が筒体(１)の他方端が開口部から５．９ｍ3／ｍｉｎで噴出した。
Therefore, 2 m 3 /h of fuel LPG and 8.6 m 3 /h of air were injected from the burner (2), and a mixture mist (water droplet diameter 20 μm) of pressurized air (0.3 MPa) and pressurized water was injected from the injection nozzle. Compressed air; water = 500; 1) was injected at 150 ml/min toward the refractory heat storage molded body (3) heated to 1000°C.
As a result, superheated steam at 800° C. containing 80% or more of steam gas (H 2 O) was ejected from the opening at the other end of the cylinder (1) at a rate of 5.9 m 3 /min.
次いで、図１に示す過熱水蒸気含有ガス供給口（９）から、円筒状のドラム（１０）内に４００℃の過熱水蒸気を送給し、また食材供給通路（３０）から椎茸栽培用使用済みおが屑を供給し、円筒状のドラム（１０）内でおが屑とセラミックボール（１１）と接触・攪拌させながら過熱水蒸気含有ガスと５秒間接触させた。
そして、加熱処理されて比重が軽くなったおが屑を上部中空室（２０）の取出口（２１）から取り出した。
その結果、処理前には水分が３９．６％、一般生菌の菌数が測定不能多数、大腸菌群の菌数が測定不能多数の使用済みおが屑が、水分１．６５％、一般生菌の菌数８．７×１０3個及び大腸菌群の菌数が陰性の優良な椎茸栽培用再生おが屑となった。
Next, superheated steam at 400°C is fed into the cylindrical drum (10) from the superheated steam-containing gas supply port (9) shown in FIG. was supplied, and the sawdust and the ceramic balls (11) were brought into contact with the superheated steam-containing gas for 5 seconds while being stirred and brought into contact with each other in the cylindrical drum (10).
Then, the sawdust whose specific gravity had been reduced by the heat treatment was taken out from the outlet (21) of the upper hollow chamber (20).
As a result, used sawdust had a moisture content of 39.6% before treatment, an unmeasurable number of general viable bacteria, and an unmeasurable number of coliform bacteria, but a used sawdust with a moisture content of 1.65% and an unmeasurable number of general viable bacteria. The recycled sawdust for cultivating shiitake mushrooms had a negative bacterial count of 8.7 x 103 bacteria and coliform bacteria.
１；長尺の筒体
１Ａ；外筒
１Ｂ；気体導入口
２；バーナ
３；耐火蓄熱性成形体
３ａ；篭状容器
３ｂ；セラミックボール
４；噴射ノズル
９；過熱水蒸気含有ガス供給口（長尺の筒体の開口部）
１０；円筒状のドラム
１１；セラミックボール
２０；上部中空室
２１；取出口
３０；食材細片供給通路
３１；ロータリーフィーダ
1; Long cylinder 1A; Outer cylinder 1B; Gas inlet 2; Burner 3; Refractory heat storage molded body 3a; Basket-shaped container 3b; Ceramic ball 4; opening of the cylinder)
10; Cylindrical drum 11; Ceramic ball 20; Upper hollow chamber 21; Output port 30; Food strip supply passage 31; Rotary feeder
Claims (3)
その上方に取着された上部中空室（２０）と、
前記円筒状のドラム（１０）の底部付近の周壁に、同ドラム（１０）の円周の接線方向に沿って過熱水蒸気含有ガス噴出口（９）が取着された過熱水蒸気含有ガス供給装置と、
前記ドラム（１０）壁面で過熱水蒸気含有ガス供給口（９）と上部中空室（２０）との間に配設された被加熱処理物の供給管路（３０）とから構成され、
かつ、上部中空室（２０）はその横断面が下方に向かって斬縮し、下端部の開口部が上記円筒状のドラム（１０）の上壁部に開口して取着され、また上部中空室（２０）の上部には被加熱処理物の取出口（２１）が設けられてなり、
そして前記過熱水蒸気含有ガス供給装置は、一方端が閉塞され他方端が開口した長尺の筒体(１)と、前記筒体(１)の閉塞された一方端部に取り付けられた燃料と空気を供給するためのバーナ（２）と、前記筒体内のバーナの先方位置に設置された耐火蓄熱性成形体（３）と、前記筒体内の閉塞部近傍の壁に設けられた、加圧水と加圧空気の混合物ミストを耐火蓄熱性成形体に向けて噴射する噴射ノズル（４）とからなることを特徴とする過熱水蒸気含有ガスを用いる加熱処理装置。 a horizontally installed cylindrical drum (10);
an upper hollow chamber (20) attached above;
A superheated steam-containing gas supply device in which a superheated steam-containing gas outlet (9) is attached to a peripheral wall near the bottom of the cylindrical drum (10) along a tangential direction of the circumference of the drum (10). ,
It is composed of a supply pipe line (30) for the object to be heated, which is disposed on the wall surface of the drum (10) between the superheated steam-containing gas supply port (9) and the upper hollow chamber (20),
The upper hollow chamber (20) has a cross section that is contracted downward, and the opening at the lower end is opened and attached to the upper wall of the cylindrical drum (10). The upper part of the chamber (20) is provided with an outlet (21) for taking out the material to be heated,
The superheated steam-containing gas supply device includes a long cylinder (1) with one end closed and the other end open, and fuel and air attached to the closed one end of the cylinder (1). a burner (2) for supplying pressurized water, a refractory heat storage molded body (3) installed in the cylinder at a position ahead of the burner, and a pressurized water and pressurized A heat treatment device using superheated steam-containing gas, comprising an injection nozzle (4) that injects a mixture mist of compressed air toward a refractory heat storage molded body.
その上方に取着された上部中空室（２０）と、
前記円筒状のドラム（１０）の底部付近の周壁に、同ドラム（１０）の円周の接線方向に沿って過熱水蒸気含有ガス噴出口（９）が取着された過熱水蒸気含有ガス供給装置と、
前記ドラム（１０）壁面で過熱水蒸気含有ガス供給口（９）と上部中空室（２０）との間に配設された被加熱処理物の供給管路（３０）とから構成され、
そして前記過熱水蒸気含有ガス供給装置は、一方端が閉塞され他方端が開口した長尺の筒体（１）と、前記筒体の閉塞された一方端部に取り付けられた燃料と空気を供給するためのバーナ（２）と、前記筒体内のバーナの先方位置に設置された耐火蓄熱性成形体（３）と、前記筒体内の閉塞部近傍の壁に設けられた、加圧水と加圧空気の混合物ミストを耐火蓄熱性成形体に向けて噴射する噴射ノズル（４）と、前記長尺の筒体(１)を被包するごとく設けられた外筒（１Ａ）からなり、かつ同外筒（１Ａ）は内径及び延長長さが前記長尺の筒体（１）よりも長いものであることを特徴とする過熱水蒸気含有ガスを用いる加熱処理装置。 a horizontally installed cylindrical drum (10);
an upper hollow chamber (20) attached above;
A superheated steam-containing gas supply device in which a superheated steam-containing gas outlet (9) is attached to a peripheral wall near the bottom of the cylindrical drum (10) along a tangential direction of the circumference of the drum (10). ,
It is composed of a supply pipe line (30) for the object to be heated, which is disposed on the wall surface of the drum (10) between the superheated steam-containing gas supply port (9) and the upper hollow chamber (20),
The superheated steam-containing gas supply device supplies a long cylinder (1) with one end closed and the other end open, and fuel and air attached to the closed one end of the cylinder. a burner (2) for pressurized water and pressurized air; It consists of an injection nozzle (4) that injects the mixture mist toward the refractory heat storage molded body, and an outer cylinder (1A) provided so as to enclose the elongated cylinder (1), and the outer cylinder (1A). 1A) is a heat treatment apparatus using a gas containing superheated steam, characterized in that the inner diameter and extension length are longer than the long cylinder (1).
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