JP4741554B2 - Powder heat treatment equipment - Google Patents

Powder heat treatment equipment Download PDF

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JP4741554B2
JP4741554B2 JP2007201037A JP2007201037A JP4741554B2 JP 4741554 B2 JP4741554 B2 JP 4741554B2 JP 2007201037 A JP2007201037 A JP 2007201037A JP 2007201037 A JP2007201037 A JP 2007201037A JP 4741554 B2 JP4741554 B2 JP 4741554B2
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stirring
granular material
vessel
heat treatment
pressure vessel
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JP2009034038A (en
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雅弘 樋口
広希 米田
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Nisshin Seifun Group Inc
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Description

本発明は、飽和蒸気(飽和水蒸気)を用いて粉粒体を熱処理することにより減菌するとともに、品質のばらつきの少ない一定品質の熱処理した粉粒体を得るための、すなわち、後に所定条件で加水処理したときに品質のばらつきのない、もしくは、品質のばらつきを抑えることのできる熱処理した粉粒体を得ることができる粉粒体の熱処理装置に関するものである。   The present invention is to sterilize powder particles by heat treatment using saturated steam (saturated steam), and to obtain heat treated powder particles of a constant quality with little variation in quality. The present invention relates to a heat treatment apparatus for a granular material that can obtain a heat-treated granular material that has no variation in quality or can suppress the variation in quality when subjected to a hydration treatment.

従来より、穀物や加工食品や医薬品などの粉粒体を過熱蒸気や飽和蒸気を用いて殺菌する装置が知られている(例えば、特許文献1および特許文献2参照)。
特許文献1に記載の粉粒体の減菌装置は、加圧容器内に飽和蒸気を吹き込みつつ、加圧容器内で攪拌羽根によって粉粒体を攪拌して移送させながら飽和蒸気によって加熱殺菌するものである。この減菌装置は、固定された加圧容器内において攪拌羽根が密に植設された攪拌軸を回転させるので、高速な回転が可能であり、粉粒体を短時間で効率よく大量に減菌処理することができ、小麦粉などの殺菌処理に適用できるものである。すなわち、この減菌装置は、粉粒体、特に小麦粉、そば粉などの穀粉を変質させることなく短時間で効果的に減菌することができるものである。
2. Description of the Related Art Conventionally, there are known devices for sterilizing powders and grains such as processed foods and pharmaceuticals using superheated steam or saturated steam (see, for example, Patent Document 1 and Patent Document 2).
The powder sterilization apparatus described in Patent Document 1 is sterilized by heating with saturated steam while stirring and transferring the powder with stirring blades in the pressurized container while blowing saturated steam into the pressurized container. Is. This sterilizer rotates a stirring shaft in which stirring blades are densely planted in a fixed pressurized container, so that high-speed rotation is possible, and powder particles are efficiently and massively reduced in a short time. Bacteria can be treated and can be applied to sterilization treatment of flour and the like. That is, this sterilization apparatus can sterilize effectively in a short time without changing the quality of flour, especially flour such as wheat flour and buckwheat flour.

一方、特許文献2に記載の殺菌機は、上端部に開閉される被殺菌物の供給口を持ち、下端部に開閉される排出口を持つ密封状態の缶体内に、飽和蒸気、過熱蒸気、高圧蒸気、低圧蒸気などの蒸気を供給管から噴出させつつ、缶体内において供給口から排出口に亘る、内壁に多数の桟が配設された攪拌胴を回転させながら、攪拌胴内の被殺菌物を攪拌して移送させながら加熱殺菌、加熱変性等の加熱処理を行うものである。また、この殺菌機は、攪拌胴の回転数を制御することにより、被殺菌物が回転攪拌胴を通過する時間を制御し、被殺菌物の処理時間を制御することができるものである。   On the other hand, the sterilizer described in Patent Document 2 has a supply port of an object to be sterilized that is opened and closed at the upper end, and a saturated steam, superheated steam, While jetting high-pressure steam, low-pressure steam, etc. from the supply pipe, rotating the stirring cylinder with many bars on the inner wall from the supply port to the discharge port in the can, Heating treatment such as heat sterilization and heat denaturation is performed while the material is stirred and transferred. Moreover, this sterilizer can control the processing time of a to-be-sterilized material by controlling the rotation speed of a stirring cylinder, thereby controlling the time for the object to be sterilized to pass through the rotating agitating cylinder.

こうして、この殺菌機は、蒸気の供給による完全な殺菌が可能で、リーフ、粒、粉、等の多種類な原料に対応でき、簡単に扱えて、多種、多量の原料を原料品質を損なわず、充分な攪拌でムラをなくし、湿熱の殺菌効果が充分に発揮できる流動型で被殺菌物の色素、組織、風味等の品質劣化を防ぐことができるというものである。
また、この殺菌機は、攪拌胴の回転支持ローラを枠体に設け、この該枠体を缶体内に付設したレール上を移動させて攪拌胴を缶体内より取り外し自在とし、また、供給口から供給された被殺菌物を攪拌胴に供給するための、筒に覆われた螺旋状の巻線を缶体内に出入れ自在に設けることにより、コンパクトで安価で、丸洗い可能なものとされている。
In this way, this sterilizer can be completely sterilized by supplying steam, can handle a wide variety of raw materials such as leaves, grains, powders, etc., can be handled easily, and does not impair the quality of various raw materials. It is a fluid type that eliminates unevenness with sufficient agitation and can sufficiently exhibit the sterilizing effect of wet heat, and can prevent deterioration in quality of pigments, tissues, flavors and the like of the object to be sterilized.
Further, this sterilizer is provided with a rotation support roller for the stirring cylinder on the frame body, and the frame body is moved on a rail attached to the inside of the can body so that the stirring cylinder can be detached from the can body. By providing a spiral winding covered with a cylinder for feeding the supplied sterilized material to the stirring cylinder so that it can be freely put into and out of the can body, it is compact, inexpensive and can be washed in a round. .

特許第2784505号公報Japanese Patent No. 2784505 特開平10−075990号公報JP-A-10-075990

しかしながら、特許文献2に記載の殺菌機は、缶体内で被殺菌物を攪拌・移送するのに攪拌胴を回転させるため、攪拌胴の回転数を高速にするには限界があり、被殺菌物を大量に処理することができないという問題があった。また、この殺菌機は、缶体内を密封状態にするために、缶体の供給口および排出口を開閉するための複雑な機構のスイングバルブが必要であるし、缶体の供給口から供給された被殺菌物を、回転する攪拌胴に供給するのに、缶体の供給口から回転する攪拌胴内まで移送するための、筒に覆われた螺旋状の巻線よりなる羽根を回転させる複雑な機構が必要があるという問題があった。
さらに、被殺菌物の温度を直接測定することや、被殺菌物に加水を行うことが回転する攪拌胴のために行えないという問題があった。
However, since the sterilizer described in Patent Document 2 rotates the stirring cylinder to stir and transfer the object to be sterilized in the can, there is a limit to increasing the rotation speed of the stirring cylinder. There was a problem that could not be processed in large quantities. Further, this sterilizer requires a swing valve having a complicated mechanism for opening and closing the supply port and the discharge port of the can body in order to seal the can body, and the sterilizer is supplied from the supply port of the can body. In order to supply the sterilized material to the rotating stirring cylinder, the complicated structure of rotating the blade made of a spiral winding covered with a cylinder for transferring from the supply port of the can to the rotating stirring cylinder There was a problem that a special mechanism was necessary.
Furthermore, there is a problem that it is impossible to directly measure the temperature of the object to be sterilized or to add water to the object to be sterilized due to the rotating stirring cylinder.

ところで、特許文献1に記載の粉粒体の減菌装置で粉粒体の減菌処理の連続運転を続けていると、例えば、小麦粉を減菌する処理を長時間に亘り続けていると、加圧容器の内壁に、飽和蒸気の冷却による結露が生じると、生じた結露に極少量の小麦粉が混合され、この混合物が飽和蒸気に触れて変性することが繰り返されるために、攪拌羽根と加圧容器との隙間に飽和蒸気の水分と熱によって変性した小麦粉の塊が形成され、場合によってはこれが剥がれて、減菌装置の運転を停止しなければならなくなるという問題があった。
なお、この粉粒体の減菌装置を起動する際には、その圧力容器は冷却されているので、飽和蒸気によって圧力容器が十分に加熱されるまでは、必ず飽和蒸気は結露するため、運転開始が可能になる時に完全に結露を無くすことはできないし、圧力容器内に完全に結露が無くなってから運転開始しようとすると、運転開始までに時間がかかりすぎるという問題があった。
By the way, when continuing the continuous operation of the sterilization process of the granular material in the sterilization apparatus of the granular material described in Patent Document 1, for example, when the process of sterilizing the flour is continued for a long time, When condensation occurs due to cooling of saturated steam on the inner wall of the pressurized container, a very small amount of flour is mixed with the resulting condensation, and this mixture is repeatedly touched with saturated steam and denatured. There was a problem that a lump of flour denatured by moisture and heat of saturated steam was formed in the gap with the pressure vessel, and in some cases, it was peeled off and the operation of the sterilizer had to be stopped.
When starting up this powder sterilizer, the pressure vessel is cooled, so the saturated vapor will always condense until the pressure vessel is sufficiently heated by the saturated vapor. Condensation cannot be completely eliminated when the start is possible, and there is a problem that it takes too much time to start the operation when the operation is started after the condensation has completely disappeared in the pressure vessel.

また、近年、特許文献1に記載の粉粒体の減菌装置等で減菌処理された粉粒体、例えば減菌処理小麦粉の場合は、これを水に溶いて調味料やその他の材料などを添加して、てんぷらやフライなどの揚げ物用バッターとして用いられることがある。
このように揚げ物の用途で用いられるバッター粉は、加水してバッターに調整した際の粘度が重要な品質管理項目であり、これが適正な値になるように、高い吸水性を持つα化澱粉などを添加してバッターの粘度を整えているのが実情である。
しかし、より純良なバッターを提供するには、α化澱粉のような副材に頼ることなく、小麦粉そのものの吸水性を向上させることが必要とされる。そのためには、特許文献1に記載の粉粒体の減菌装置を用いた減菌処理過程で、飽和水蒸気処理だけでなく加水処理をも行うことが効果的であることが分かった。
In recent years, in the case of powders sterilized by the sterilizer for powders described in Patent Document 1, such as sterilized wheat flour, this is dissolved in water and seasonings, other materials, etc. May be used as a batter for deep-fried foods such as tempura and fries.
Thus, batter powder used for fried foods is an important quality control item when the viscosity is adjusted by adding water to the batter, so that it becomes an appropriate value, such as pregelatinized starch with high water absorption The fact is that the viscosity of the batter is adjusted by adding.
However, in order to provide a more pure batter, it is necessary to improve the water absorption of the flour itself without relying on a secondary material such as pregelatinized starch. For this purpose, it has been found that it is effective to perform not only the saturated steam treatment but also the hydration treatment in the sterilization treatment process using the powder sterilization apparatus described in Patent Document 1.

そこで、本発明者等は、特許文献1に記載の粉粒体の減菌装置を用い、飽和水蒸気および水を加えて小麦粉を処理してみたところ、結露のために小麦粉と水の混合物が装置内部へ多量に付着し、長時間の運転では圧力容器や粉粒体排出口ならびにロータリーバルブが閉塞してしまうという問題に見舞われた。また、飽和水蒸気の結露による水分増加と、加水による水分増加を適切にコントロールできないため、得られた処理小麦粉を用いて調整したバッターは品質(特に粘度)が一定にならないという問題があり、特許文献1に記載の粉粒体の減菌装置を用いて、品質が一定のバッター粉を製造することは殆ど不可能であった。   Therefore, the present inventors tried to process the flour by adding saturated water vapor and water using the powder sterilizer described in Patent Document 1, and the mixture of the flour and water was used for dew condensation. A large amount adhered to the inside, and the pressure vessel, the granular material discharge port, and the rotary valve were blocked during long-time operation. In addition, there is a problem that the quality (especially viscosity) of the batter prepared using the processed wheat flour is not constant because the water increase due to condensation of saturated water vapor and the water increase due to water cannot be appropriately controlled. It was almost impossible to produce batter powder having a constant quality using the powder sterilizer described in 1.

本発明は、上記事情に鑑みてなされたものであり、その目的とするところは、上記従来技術の問題点を解消し、飽和水蒸気処理だけでなく加水処理を行っても、装置内部に結露を生じさせることなく、長時間の連続運転が可能で、しかも処理水分のむらがなく、品質が均一な熱処理された粉粒体を得ることができる粉粒体の熱処理装置を提供することにある。   The present invention has been made in view of the above circumstances, and the object of the present invention is to eliminate the above-mentioned problems of the prior art and to cause dew condensation inside the apparatus even if not only saturated steam treatment but also water treatment. An object of the present invention is to provide a heat treatment apparatus for a granular material which can be continuously operated for a long period of time without causing irregularities, and which can obtain a heat-treated powder particle having uniform quality and no unevenness in treated moisture.

上記課題を解決するために、本発明は、一端近くに粉粒体の投入口、他端近くに粉粒体の排出口を備え、さらに、飽和蒸気の吹込口および水または温湯の供給口を備える円筒形外側圧力容器と、前記投入口に連通する粉粒体の導入口、前記排出口に連通する粉粒体の導出口および前記飽和蒸気が流通可能な多孔板を備え、前記円筒形外側圧力容器内に配置される円筒形内側攪拌容器と、前記円筒形内側攪拌容器内に配置され、前記投入口から投入され、前記導入口を経て前記円筒形内側攪拌容器内に導入された粉粒体を撹拌しながら前記導出口に向けて移送する撹拌手段と、前記円筒形内側攪拌容器に配置され、その内部に導入され、前記攪拌手段によって攪拌される粉粒体に水または温湯をスプレー状に加水するための、前記供給口に連通するスプレーノズルとを有し、前記投入口から投入され、前記導入口から前記円筒形内側攪拌容器内に導入された粉粒体を、前記撹拌手段によって撹拌しながら、前記スプレーノズルから水または温湯をスプレー状に加水しつつ、前記吹込口から吹き込まれ、前記多孔板を通して導入された飽和蒸気によって熱処理することを特徴とする粉粒体の熱処理装置を提供するものである。   In order to solve the above-mentioned problems, the present invention comprises a powder inlet near one end, a powder outlet near the other end, and a saturated steam inlet and water or hot water supply outlet. A cylindrical outer pressure vessel, an inlet for the granular material communicating with the inlet, an outlet for the granular material communicating with the outlet, and a perforated plate through which the saturated vapor can circulate, A cylindrical inner stirring vessel disposed in the pressure vessel, and a powder particle disposed in the cylindrical inner stirring vessel, introduced from the charging port, and introduced into the cylindrical inner stirring vessel through the introduction port Agitating means for transporting the body toward the outlet while stirring the body, sprayed with water or hot water on the granular material which is disposed in the cylindrical inner stirring vessel and introduced into the inside and stirred by the agitating means Communicating with the supply port for water A spray nozzle and water or hot water from the spray nozzle while stirring by the stirring means while the granular material introduced from the introduction port and introduced into the cylindrical inner stirring vessel from the introduction port is stirred. The present invention provides a heat treatment apparatus for a granular material, characterized in that heat treatment is performed by saturated steam introduced through the perforated plate while being sprayed.

ここで、前記円筒形外側圧力容器は、前記排出口側の前記他端側に開閉可能な開閉蓋を備えるのが好ましい。
また、前記円筒形内側攪拌容器は、その両端の少なくとも一方に円形の前記多孔板を備えるのが好ましい。
また、前記多孔板は、前記円筒形内側攪拌容器の前記導入口側の前記一端側に設けられる円形のパンチングプレートであるのが好ましい。
また、前記円筒形内側攪拌容器は、互いに接する複数の円筒形内部カートリッジからなり、前記複数の円筒形内部カートリッジの各々は、前記円筒形外側圧力容器内に、配設された少なくとも2本のガイドレールによって移動可能に支持されるのが好ましい。
Here, it is preferable that the cylindrical outer pressure vessel includes an openable / closable lid on the other end side on the discharge port side.
Moreover, it is preferable that the said cylindrical inner side stirring container is equipped with the said circular perforated plate in at least one of the both ends.
Moreover, it is preferable that the said perforated plate is a circular punching plate provided in the said one end side of the said inlet side of the said cylindrical inner side stirring container.
The cylindrical inner stirring vessel includes a plurality of cylindrical inner cartridges in contact with each other, and each of the plurality of cylindrical inner cartridges is provided with at least two guides disposed in the cylindrical outer pressure vessel. It is preferably supported by a rail so as to be movable.

また、前記撹拌手段は、回転攪拌軸およびこの回転攪拌軸上に植設された、前記円筒形内側攪拌容器内で回転する複数の棒状羽根を備えるのが好ましい。
また、前記複数の棒状羽根は、前記回転攪拌軸上に周囲に向かってラセン状に植設され、前記回転攪拌軸に対して直角方向から見た回転軌跡が前記回転攪拌軸の軸方向にほとんど隙間なく並ぶように配列されるのが好ましい。
また、前記回転攪拌軸は、前記他端側の先端は、前記円筒形内側攪拌容器から延在し、前記円筒形外側圧力容器の内側に、固定手段によって取り外し可能に固定された支持部材で支持された軸受ユニットによって回転可能に支持され、前記一端側の先端は、前記円筒形内側攪拌容器から延在し、前記円筒形外側圧力容器の側板の外側に取り付けられた軸受ユニットによって回転可能に支持され、前記回転攪拌軸と前記円筒形外側圧力容器の側板との間は、シール部材によって気密にシールされるのが好ましい。
また、前記回転攪拌軸を展開した時、前記複数の棒状羽根が並ぶ直線は、前記回転攪拌軸の軸線に垂直な線に対して傾斜しているのが好ましい。
また、さらに、前記円筒形外側圧力容器の前記投入口に接続され、熱処理前の粉粒体を前記投入口を経て前記円筒形内側攪拌容器の前記導入口まで圧力遮断状態で移送して前記円筒形内側攪拌容器内に供給するマテリアルシールスクリュと、前記円筒形外側圧力容器の前記排出口に接続され、該排出口から殺菌されかつ加水熱処理された粉粒体を排出するためのロータリーバルブと、を有し、前記円筒形外側圧力容器は、その内部が前記吹込口から供給された飽和蒸気によって所定圧力に加圧され、前記円筒形外側圧力容器内の前記所定圧力は、前記マテリアルシールスクリュとロータリーバルブとによって維持されるのが好ましい。
また、さらに、熱処理前の粉粒体を保持するホッパを有し、
熱処理前の粉粒体は、前記ホッパから前記マテリアルシールスクリュに供給されるのが好ましい。
The stirring means preferably includes a rotating stirring shaft and a plurality of rod-shaped blades that are planted on the rotating stirring shaft and rotate in the cylindrical inner stirring vessel.
Further, the plurality of rod-shaped blades are implanted in a spiral shape on the rotary stirring shaft toward the periphery, and a rotation locus viewed from a direction perpendicular to the rotary stirring shaft is almost in the axial direction of the rotary stirring shaft. It is preferable to arrange them so that they are arranged without gaps.
The rotary stirring shaft has a tip at the other end extending from the cylindrical inner stirring vessel and supported by a support member detachably fixed to the inner side of the cylindrical outer pressure vessel by a fixing means. The end of the one end side extends from the cylindrical inner stirring vessel and is rotatably supported by a bearing unit attached to the outside of the side plate of the cylindrical outer pressure vessel. The space between the rotary stirring shaft and the side plate of the cylindrical outer pressure vessel is preferably hermetically sealed by a seal member.
Further, when the rotary stirring shaft is deployed, it is preferable that the straight line in which the plurality of rod-shaped blades are aligned is inclined with respect to a line perpendicular to the axis of the rotary stirring shaft.
Further, the cylinder is connected to the inlet of the cylindrical outer pressure vessel, and the granular material before heat treatment is transferred through the inlet to the inlet of the cylindrical inner stirring vessel in a pressure-blocked state. A material seal screw to be supplied into the inner stirring vessel, a rotary valve connected to the discharge port of the cylindrical outer pressure vessel, and for discharging the sterilized and hydrothermally treated granular material from the discharge port, The cylindrical outer pressure vessel is pressurized to a predetermined pressure by saturated steam supplied from the blowing port, and the predetermined pressure in the cylindrical outer pressure vessel is the material seal screw. It is preferably maintained by a rotary valve .
In addition, it has a hopper that holds the powder before heat treatment,
It is preferable that the granular material before heat processing is supplied from the hopper to the material seal screw.

本発明によれば、飽和蒸気を用いて粉粒体を熱処理する際に、円筒形外側圧力容器と円筒形内側攪拌容器との間に飽和蒸気を吹き出させて、円筒形外側圧力容器内に配置される、飽和蒸気が流通可能な円筒形内側攪拌容器内において粉粒体を攪拌するようにして、飽和蒸気による熱処理を行うようにしたので、円筒形内側攪拌容器の内壁などの粉粒体と接する部分に結露を生じさせることが無いので、長時間の連続運転ができ、さらに、飽和蒸気を用いると共に水または温湯を添加して粉粒体を熱処理することにより、減菌すると共に品質のばらつきの少ない一定品質の熱処理した粉粒体を得ることができる。   According to the present invention, when the granular material is heat-treated using saturated steam, the saturated steam is blown out between the cylindrical outer pressure vessel and the cylindrical inner stirring vessel, and is disposed in the cylindrical outer pressure vessel. In the cylindrical inner stirring vessel through which saturated steam can be circulated, the powder is stirred, and heat treatment with saturated steam is performed, so that the granular material such as the inner wall of the cylindrical inner stirring vessel Condensation does not occur in the contact area, so it can be operated continuously for a long time. In addition, by using saturated steam and adding water or hot water to heat the powder particles, the bacteria are sterilized and the quality varies. It is possible to obtain a heat-treated granular material with a small amount and a constant quality.

以下、本発明に係る粉粒体の熱処理装置について、添付の図面に示す好適な実施形態に基づいて詳細に説明する。
図1(a)は、本発明に係る粉粒体の熱処理装置の一実施形態を概念的に示す正面断面図であり、(b)は、(a)に示す熱処理装置のIB−IB線断面図である。また、図2(a)は、図1(a)に示す熱処理装置の上面断面図であり、(b)は、(a)に示す熱処理装置のIIB−IIB線断面図である。また、図3は、図1(a)に示す熱処理装置の端面模式図である。
Hereinafter, the heat processing apparatus of the granular material which concerns on this invention is demonstrated in detail based on suitable embodiment shown to an accompanying drawing.
FIG. 1A is a front cross-sectional view conceptually showing an embodiment of a heat treatment apparatus for granular materials according to the present invention, and FIG. 1B is a cross-sectional view taken along line IB-IB of the heat treatment apparatus shown in FIG. FIG. 2A is a top sectional view of the heat treatment apparatus shown in FIG. 1A, and FIG. 2B is a sectional view taken along the line IIB-IIB of the heat treatment apparatus shown in FIG. FIG. 3 is a schematic end view of the heat treatment apparatus shown in FIG.

図1(a)〜図3に示す粉粒体の熱処理装置10は、小麦粉等の穀粉や穀粒等の穀物、加工食品、薬品原料などの粉粒体の減菌や殺菌などを行うと共に、後に所定条件下で加水をすることを前提とした前処理を行うためのものであって、所定圧力に維持される円筒形外側圧力容器(以下、圧力容器という)12と、圧力容器12内に配置される円筒形内側攪拌容器(以下、攪拌容器という)14と、攪拌容器14内に配置される撹拌機16とを有する。ここで、攪拌容器14および撹拌機16は、横型高速ミキサーを構成する。   The heat treatment apparatus 10 for granular materials shown in FIGS. 1A to 3 performs sterilization and sterilization of granular materials such as flour such as wheat flour, grains such as cereal grains, processed foods, and chemical raw materials, A pre-treatment for preconditioning that water is added under predetermined conditions later, and a cylindrical outer pressure vessel (hereinafter referred to as a pressure vessel) 12 maintained at a predetermined pressure, It has a cylindrical inner stirring container (hereinafter referred to as a stirring container) 14 disposed and a stirrer 16 disposed in the stirring container 14. Here, the stirring container 14 and the stirrer 16 constitute a horizontal high-speed mixer.

ここで、圧力容器12は、その内部を加熱殺菌(減菌)するための飽和蒸気によって所定の圧力に維持するもので、基端近くの略中央部に粉粒体の投入口18aを備え、先端近くの下側に粉粒体の排出口18bを備える円筒胴体18と、円筒胴体18の先端側の円形開口を開閉自在に閉塞する先端鏡板20と、円筒胴体18の基端側の円形開口を閉塞する基端側蓋部材22とを有する。なお、先端鏡板20は、円筒胴体18に取り付けられた腕19に設けられた軸20aを支点として回動することにより開閉され、閉止時、図示しないロック機構によりロックされる。   Here, the pressure vessel 12 is maintained at a predetermined pressure by saturated steam for heat sterilization (sterilization) of the inside thereof, and is provided with a powder inlet 18a in a substantially central portion near the base end, A cylindrical body 18 provided with a powder outlet 18b on the lower side near the front end, a front end plate 20 for opening and closing a circular opening on the front end side of the cylindrical body 18 and a circular opening on the proximal end side of the cylindrical body 18 And a proximal end side cover member 22 for closing the cover. The tip end plate 20 is opened and closed by rotating about a shaft 20a provided on an arm 19 attached to the cylindrical body 18, and is locked by a lock mechanism (not shown) when closed.

基端側蓋部材22の上部には、飽和蒸気の吹込口24aとなる飽和蒸気の供給管24が取り付けられ、その先端の飽和蒸気の吹出口24bが圧力容器12内の基端側蓋部材22と攪拌容器14との間に下向きに配置される。なお、飽和蒸気は、図示しないボイラーから蒸気ヘッダを介して供給されるようになっている。
また、円筒胴体18は、さらに、基端近くの横側に設けられ、攪拌容器14内で攪拌される粉粒体に加水するための水または温湯の供給口18cと、上側に設けられ、攪拌容器14内の圧力が高くなり過ぎないように機能する安全弁18dと、先端近くの上側に設けられ、先端鏡板20を開放する前に圧力容器12内の圧力を大気開放するための開閉弁18eと、下側に設けられ、吹出口24bから圧力容器12内に吹き出した飽和蒸気が冷えて結露した水分を圧力容器12から排出するためのドレンセパレータ18fとを備える。
A saturated steam supply pipe 24 serving as a saturated steam inlet 24 a is attached to an upper portion of the proximal end cover member 22, and a saturated steam outlet 24 b at the distal end thereof is a proximal end cover member 22 in the pressure vessel 12. And the stirring vessel 14 is disposed downward. The saturated steam is supplied from a boiler (not shown) via a steam header.
The cylindrical body 18 is further provided on the lateral side near the base end, and provided on the upper side with a water or hot water supply port 18c for adding water to the granular material to be stirred in the stirring vessel 14, and stirred. A safety valve 18d that functions so that the pressure in the container 14 does not become too high, and an on-off valve 18e that is provided on the upper side near the tip and opens the pressure in the pressure vessel 12 to the atmosphere before the tip end plate 20 is opened. The drain separator 18f is provided on the lower side and discharges moisture from the pressure vessel 12 when the saturated steam blown into the pressure vessel 12 from the outlet 24b is cooled and condensed.

次に、攪拌容器14は、圧力容器12の投入口18aから投入された粉粒体、吹込口24aから供給管24を経てその先端の吹出口24bから吹き出された飽和蒸気および供給口18cから供給された水または温湯を内部に受け入れ、内部に配置された攪拌機16によって粉粒体を攪拌しながら、圧力容器12の排出口18bに向けて移送すると共に、飽和蒸気によって粉粒体を熱処理すると共に、粉粒体に水または温湯をスプレー状に散布するものである。   Next, the agitation vessel 14 is supplied from the supply port 18c and the granular material introduced from the introduction port 18a of the pressure vessel 12, the saturated steam blown from the blowout port 24b through the supply tube 24 from the blowout port 24a. The water or hot water is received inside, and while being stirred by the stirrer 16 disposed inside, the powder and particles are transferred toward the discharge port 18b of the pressure vessel 12, and the particles are heat-treated with saturated steam. Water or hot water is sprayed on the granular material in a spray form.

攪拌容器14は、4つの円筒状分割カートリッジ26a、26b、26cおよび26dからなる円筒ケーシング26と、円筒ケーシング26の基端側および先端側の円形開口に取り付けられ、飽和蒸気が流通可能な円形の多孔板であるパンチングプレート28aおよび28bとを備える。なお、分割カートリッジ26a、26b、26cおよび26dは、それぞれ、圧力容器12内に配設された図示しない少なくとも2本のガイドレールによって移動可能に支持されるのが好ましい。このように構成することにより、攪拌容器14の洗浄はもちろん、圧力容器12内の清掃や洗浄なども容易となり、その結果、熱処理対象の粉粒体の変更を容易に行うことができ、その結果、種々の粉粒体を熱処理することができる。
ここで、円筒ケーシング26の基端側および先端側の円形開口の一方の円形の多孔板に代えて、単なる円板からなるめくら板を用いても良いが、この場合には、先端側を円板とし、飽和蒸気の吹出口24bに近い基端側をパンチングプレート28aとするのが好ましい。
The stirring vessel 14 is attached to a cylindrical casing 26 composed of four cylindrical divided cartridges 26a, 26b, 26c and 26d, and circular openings on the proximal end side and the distal end side of the cylindrical casing 26, and allows a saturated steam to flow therethrough. Punching plates 28a and 28b, which are perforated plates, are provided. The divided cartridges 26a, 26b, 26c, and 26d are preferably movably supported by at least two guide rails (not shown) disposed in the pressure vessel 12, respectively. By configuring in this way, not only cleaning of the stirring vessel 14 but also cleaning and cleaning of the pressure vessel 12 are facilitated, and as a result, it is possible to easily change the granular material to be heat treated. Various powders can be heat-treated.
Here, instead of one circular perforated plate of the circular opening on the proximal end side and the distal end side of the cylindrical casing 26, a blind plate made of a simple disc may be used. It is preferable to use a punching plate 28a on the base end side near the saturated steam outlet 24b.

円筒ケーシング26の基端側の分割カートリッジ26aには、圧力容器12の投入口18aに連通する導入口27aが設けられ、先端側の分割カートリッジ26dには、圧力容器12の排出口18bに連通する導出口27bが設けられる。
なお、攪拌容器14の導入口27aは、圧力容器12内の圧力保持のために、圧力容器12の投入口18a内に設けられ、後述するマテリアルシールスクリュ44に連通する小径の管路25によって構成される。一方、圧力容器12の排出口18bは、攪拌容器14の円形状の導出口27bを受け入れるように、少し大径の円形状をなす。なお、両者は、金属接触で接続しても良いが、図示しないバンドなどで接続して、接続部分で粉粒体の漏れが無いようにするのが好ましい。
The split cartridge 26a on the proximal end side of the cylindrical casing 26 is provided with an introduction port 27a that communicates with the input port 18a of the pressure vessel 12, and the split cartridge 26d on the distal end side communicates with the discharge port 18b of the pressure vessel 12. A lead-out port 27b is provided.
The introduction port 27a of the stirring vessel 14 is configured by a small-diameter pipe 25 that is provided in the charging port 18a of the pressure vessel 12 and communicates with a material seal screw 44 described later in order to maintain the pressure in the pressure vessel 12. Is done. On the other hand, the discharge port 18b of the pressure vessel 12 has a slightly larger circular shape so as to receive the circular outlet 27b of the stirring vessel 14. In addition, although both may be connected by metal contact, it is preferable to connect by a band (not shown) or the like so that there is no leakage of the granular material at the connection portion.

円筒ケーシング26の基端側の分割カートリッジ26aには、圧力容器12の投入口18aの近くに水または温湯の供給口18cと管路などによって連通するスプレーノズル27cが取り付けられており、攪拌容器14内の粉粒体に向けてスプレーノズル27cから水または温湯がスプレー状に散布され、加水される。ここで、散布された水または温湯は熱容量が大きいので、飽和蒸気による減菌や殺菌を助長する機能も持つ。
なお、加水量は、特に制限的ではなく、熱処理される粉粒体の特性や、求められる性状に応じて適宜選択すればよい。特に、バッター粉として利用される小麦粉の場合には、適切な粘度を発現させるために、小麦粉の質量に対して3〜10%程度の水分を散布するのが好ましい。
The split cartridge 26a on the proximal end side of the cylindrical casing 26 is provided with a spray nozzle 27c communicating with the water or hot water supply port 18c through a pipe line or the like near the charging port 18a of the pressure vessel 12. Water or hot water is sprayed from the spray nozzle 27c toward the inner powder body and sprayed. Here, since the sprayed water or hot water has a large heat capacity, it also has a function of promoting sterilization and sterilization by saturated steam.
The amount of water added is not particularly limited, and may be appropriately selected according to the properties of the heat treated powder and the properties required. In particular, in the case of flour used as batter flour, it is preferable to spray about 3 to 10% of water with respect to the mass of the flour in order to develop an appropriate viscosity.

攪拌機16は、攪拌容器14内に配置されて、圧力容器12の投入口18aから投入され、導入口27aを経て攪拌容器14内に導入された粉粒体を撹拌しながら導出口27bに向けて移送するためのもので、高速回転する攪拌軸30と、この攪拌軸30上に植設された、攪拌容器14の円筒内径に近い寸法の複数のピン状の攪拌羽根32とを備える。ここで、複数の攪拌羽根32は、攪拌軸30上に周囲に向かってラセン状に植設され、攪拌軸30に対して直角方向から見た回転軌跡が攪拌軸30の軸方向にほとんど隙間なく並ぶように配列されるのが好ましい。   The stirrer 16 is disposed in the stirring vessel 14 and is introduced from the charging port 18a of the pressure vessel 12 and is directed to the outlet 27b while stirring the powder particles introduced into the stirring vessel 14 through the inlet 27a. A stirring shaft 30 that rotates at a high speed, and a plurality of pin-shaped stirring blades 32 having dimensions close to the cylindrical inner diameter of the stirring vessel 14 that are implanted on the stirring shaft 30. Here, the plurality of stirring blades 32 are implanted in a spiral shape toward the periphery on the stirring shaft 30, and the rotation trajectory viewed from the direction perpendicular to the stirring shaft 30 has almost no gap in the axial direction of the stirring shaft 30. It is preferable that they are arranged side by side.

ところで、図1(a)〜図3から明らかなように、撹拌機16は、攪拌軸30の周囲にらせん状に等間隔に多数のピン状の攪拌羽根32が植設されており、攪拌軸30を展開すると図4ようになる。ピン状の攪拌羽根32が並ぶ直線は、図4において攪拌軸30の軸線に垂直な線に対して10゜42′の角度をなしているが、この角度に限定されるものではない。ピン状の攪拌羽根32は、攪拌軸30の軸線に垂直な方向(図で白矢印で示す)から見たとき、ピン状の攪拌羽根32の回転軌跡がほとんど隙間なく並ぶような間隔および本数で配列されている。   By the way, as apparent from FIGS. 1A to 3, the stirrer 16 has a number of pin-shaped stirring blades 32 spirally arranged around the stirring shaft 30 at equal intervals. FIG. The straight line in which the pin-shaped stirring blades 32 are arranged forms an angle of 10 ° 42 ′ with respect to a line perpendicular to the axis of the stirring shaft 30 in FIG. 4, but is not limited to this angle. The pin-shaped stirring blades 32 are spaced and numbered so that the rotation trajectories of the pin-shaped stirring blades 32 are arranged almost without gaps when viewed from the direction perpendicular to the axis of the stirring shaft 30 (indicated by white arrows in the figure). It is arranged.

熱処理装置10の先端側の攪拌軸30の先端は、攪拌容器14のパンチングプレート28bから延在し、圧力容器12の内側に、図示しないナットなどの固定手段によって取り外し可能に固定されたホイール状の支持部材34で支持された軸受ユニット36によって回転可能に支持される。一方、攪拌軸30の基端側の先端は、攪拌容器14のパンチングプレート28aから延在し、圧力容器12の蓋部材22の外側に取り付けられた軸受ユニット38によって回転可能に支持される。
また、攪拌軸30と圧力容器12の蓋部材22との間は、シール部材40によって気密にシールされる。
なお、攪拌軸30は、パンチングプレート28aおよび28bの中央開口に挿通されるが、攪拌軸30とこれらの中央開口との間は、熱処理される粉粒体が漏れなければシールの必要はなく、粉粒体が漏れない程度の隙間としても良いし、粉粒体が漏れないように攪拌軸30またはパンチングプレート28aおよび28bの中央開口にブラシや柔軟部材などを取り付けても良い。
The tip of the stirring shaft 30 on the tip side of the heat treatment apparatus 10 extends from the punching plate 28b of the stirring vessel 14, and is a wheel-like member that is detachably fixed inside the pressure vessel 12 by a fixing means such as a nut (not shown). The bearing unit 36 supported by the support member 34 is rotatably supported. On the other hand, the proximal end of the stirring shaft 30 extends from the punching plate 28 a of the stirring vessel 14 and is rotatably supported by a bearing unit 38 attached to the outside of the lid member 22 of the pressure vessel 12.
The space between the stirring shaft 30 and the lid member 22 of the pressure vessel 12 is hermetically sealed by a seal member 40.
The stirring shaft 30 is inserted through the central openings of the punching plates 28a and 28b, but there is no need to seal between the stirring shaft 30 and these central openings unless the granular material to be heat-treated leaks, It is good also as a gap | interval which does not leak a granular material, and you may attach a brush, a flexible member, etc. to the stirring shaft 30 or the center opening of punching plates 28a and 28b so that a granular material may not leak.

また、本発明の粉粒体の熱処理装置10は、図3に示すように、さらに、粉粒体を保持するホッパ42と、ホッパ42から供給される粉粒体を圧力容器12を経て攪拌容器14に圧力遮断状態で移送して、基端近くに設けられた後述する投入口18aから供給するマテリアルシールスクリュ44と、圧力容器12の先端近くに設けられた後述する排出口18bから殺菌された粉粒体を排出するためのロータリーバルブ46とを有する。   In addition, as shown in FIG. 3, the heat treatment apparatus 10 for a granular material according to the present invention further includes a hopper 42 for holding the granular material, and a granular material supplied from the hopper 42 through a pressure vessel 12 and a stirring vessel. 14 in a pressure shut-off state and sterilized from a material seal screw 44 supplied from a later-described inlet 18a provided near the base end and a later-described outlet 18b provided near the distal end of the pressure vessel 12. A rotary valve 46 for discharging powder particles.

本発明の粉粒体の熱処理装置は、基本的に以上のように構成されるものであるが、以下に、その作用について説明する。
ここで、図1(a)〜図4に示す上記構成の熱処理装置10を用いて、粉粒体を熱処理し、殺菌および水分調整のための加水をするには、予め、圧力容器12内に吹出口24bから飽和蒸気を吹き出させて、圧力容器12、攪拌容器14および攪拌機16などを十分に加熱し、少なくとも攪拌容器14内に結露を生じさせることがないように暖機運転をする。この間、圧力容器12内で飽和蒸気が冷えて結露した水分は、ドレンセパレータ18fから排出される。
The heat treatment apparatus for a granular material of the present invention is basically configured as described above, and the operation thereof will be described below.
Here, in order to heat-treat a granular material and add water for sterilization and moisture adjustment using the heat treatment apparatus 10 having the above-described configuration shown in FIGS. Saturated steam is blown out from the outlet 24b, and the pressure vessel 12, the stirring vessel 14, the stirrer 16 and the like are sufficiently heated, and a warm-up operation is performed so that at least condensation does not occur in the stirring vessel 14. During this time, the moisture that has condensed due to the cooling of the saturated vapor in the pressure vessel 12 is discharged from the drain separator 18f.

この暖機運転の後、圧力容器12内に吹出口24bから飽和蒸気を吹き出させ、かつ攪拌容器14内の攪拌機16の攪拌軸30を高速で回転させた状態で、ホッパー42から熱処理(減菌、殺菌、加水)すべき粉粒体をマテリアルシールスクリュ44により加圧容器12の投入口18aから導入口27aを経て攪拌容器14内に供給する。
その結果、粉粒体は、攪拌容器14内において撹拌機16により導入口27aから導出口27bに向かって移送されながら撹拌されつつ、吹出口24bから吹き出し、パンチングプレート28aおよび/または28bを経て攪拌容器14内に流入した飽和水蒸気とまんべんなく混合され、それにより殺菌または減菌されるとともに、水または温湯の供給口18cから供給され、スプレーノズル27cから粉粒体に応じて所定量散布されたスプレー状の水分とも、まんべんなく混合され、それにより適切に加水される。
After this warm-up operation, saturated steam is blown out from the outlet 24b into the pressure vessel 12 and the stirring shaft 30 of the stirrer 16 in the stirring vessel 14 is rotated at a high speed from the hopper 42 (sterilization). The material to be sterilized and hydrated is supplied by the material seal screw 44 from the inlet 18a of the pressurized container 12 into the stirring container 14 through the inlet 27a.
As a result, the powder particles are agitated while being transferred from the inlet 27a to the outlet 27b by the stirrer 16 in the stirring vessel 14, and then blown out from the outlet 24b and stirred via the punching plates 28a and / or 28b. Spray that is evenly mixed with the saturated water vapor that has flowed into the container 14, is sterilized or sterilized, is supplied from the water or hot water supply port 18c, and is sprayed in a predetermined amount from the spray nozzle 27c according to the granular material. Even the moisture in the form is mixed evenly and thereby properly hydrated.

こうして、十分に殺菌され、適切に加水された熱処理済粉粒体は、導出口27bを経て攪拌容器14から導出され、圧力容器12の排出口18bからロータリバルブ46を経て排出される。
こうして得られた熱処理済粉粒体は、これが小麦粉の場合、十分に殺菌されまたは減菌されていることはもちろん、適切に加水されて熱処理されているため、これに加水してバッターとし、その後、油で揚げた際には、揚げた衣がサクサク感を持ち、また、口溶けの良さが向上している。
Thus, the heat-treated powder granules that have been sufficiently sterilized and appropriately hydrated are led out from the stirring vessel 14 through the outlet 27b and discharged from the outlet 18b of the pressure vessel 12 through the rotary valve 46.
The heat-treated granular material obtained in this way, when it is wheat flour, has been adequately sterilized or sterilized, as well as being appropriately hydrated and heat-treated. When fried in oil, the fried garment has a crisp feeling and the meltability is improved.

もちろん、図示例の熱処理装置10は、飽和蒸気を用いて粉粒体を熱処理する際に、圧力容器12と攪拌容器14との間に吹出口24bから飽和蒸気を吹き出させて、圧力容器12内に配置された攪拌容器14内において粉粒体を攪拌するようにし、飽和蒸気による熱処理(殺菌)を行うようにしたので、粉粒体にスプレーノズル27cから水分をスプレー状に散布しても、攪拌容器14の内壁などの粉粒体と接する部分に結露を生じさせることが無い。
このため、図示例の熱処理装置10は、長時間の連続運転ができる。
Of course, the heat treatment apparatus 10 of the illustrated example causes the saturated vapor to blow out from the outlet 24b between the pressure vessel 12 and the stirring vessel 14 when the granular material is heat-treated using the saturated vapor, so that the inside of the pressure vessel 12 In the stirring vessel 14 arranged in the above, the powder is stirred, and heat treatment (sterilization) with saturated steam is performed, so even if water is sprayed on the powder from the spray nozzle 27c, Condensation does not occur in a portion in contact with the granular material such as the inner wall of the stirring vessel 14.
For this reason, the illustrated heat treatment apparatus 10 can be operated continuously for a long time.

また、図示例の熱処理装置10は、粉粒体にスプレーノズル27cから水分を散布することなく、攪拌容器14内において粉粒体を攪拌しながら、流入した飽和蒸気のみによる殺菌を行うことができるのはもちろんであり、この場合には、殺菌装置または減菌装置として機能させることができる。
したがって、本発明の熱処理装置は、粉粒体の殺菌または減菌とともに後の加水処理の前加水処理を予め行うこともできるし、単に、粉粒体の殺菌または減菌のみを行うこともできる。すなわち、本発明の熱処理装置は、用途や粉粒体の特性になどに応じて、水分調整済の加熱処理済粉粒体の製造装置としても、殺菌または減菌装置としても用いることができる。
なお、本発明の熱処理装置を用いて、得られた加熱処理済粉粒体は、処理前の原料粉粒体に比べて、当然水分が多いので、乾燥装置などにおける乾燥工程を通して水分を調節する必要がある。このような乾燥には、例えば、気流乾燥が使われる。
In addition, the heat treatment apparatus 10 in the illustrated example can perform sterilization using only the saturated steam that flows in while stirring the powder particles in the stirring vessel 14 without spraying moisture from the spray nozzle 27c on the powder particles. Of course, in this case, it can function as a sterilizer or a sterilizer.
Therefore, the heat treatment apparatus of the present invention can preliminarily perform pre-hydration treatment of the subsequent hydration treatment together with sterilization or sterilization of the powder, or can simply sterilize or sterilize the powder. . That is, the heat treatment apparatus of the present invention can be used as a production apparatus for heat-treated powder granules with moisture adjustment or as a sterilization or sterilization apparatus, depending on the application and the characteristics of the granules.
In addition, since the heat-treated powder granule obtained using the heat treatment apparatus of the present invention naturally has more moisture than the raw material granule before treatment, the moisture is adjusted through a drying process in a drying apparatus or the like. There is a need. For example, air drying is used for such drying.

上記実施例では、撹拌羽根32としてピン状(棒状)の羽根、例えばピン(棒)を用いているが、本発明はこれに限定されず、どのような攪拌羽根を用いても良いが、断面が長方形である板羽根よりは正方形や円に近い棒状の羽根の方が高い殺菌効果を示すので好ましい。さらに、この棒状の撹拌羽根は、粉粒体に対する撹拌機能のほかに移送機能を有する必要があるが、そのためには上記実施例のように、回転軸の周囲にらせん状に配列されるだけでなく、回転軌跡がほとんど隙間なく並ぶようになれば他の配列状態でもよい。   In the above embodiment, a pin-shaped (bar-shaped) blade, for example, a pin (bar) is used as the stirring blade 32, but the present invention is not limited to this, and any stirring blade may be used. A rectangular blade or a rod-shaped blade closer to a circle is more preferable than a plate blade having a rectangular shape because it exhibits a higher sterilizing effect. Furthermore, this rod-shaped stirring blade needs to have a transfer function in addition to the stirring function for the powder and granular material. For that purpose, it is only arranged in a spiral around the rotating shaft as in the above embodiment. There may be other arrangements as long as the rotation trajectories are arranged almost without gaps.

また、ロータリーバルブでのシールは、その構造上内圧が高い場合は、高圧気体(この場合飽和蒸気)が逃げるが、飽和蒸気の場合は、これが結露して粉粒体を固め運転不能になってしまうことが多い。圧力容器12内の攪拌容器14への粉粒体の供給に関しては、特にこの傾向が強い。
それに対して、マテリアルシールスクリュを用いることにより、100%の充填率で次々と送り込まれる粉粒体そのもので気密が保たれるため、内部の水蒸気が漏れることがなく、その結果、このような不都合が生ずることはない。
In addition, when the internal pressure is high due to the structure of the rotary valve seal, high-pressure gas (saturated steam in this case) escapes, but in the case of saturated steam, this condenses and solidifies the powder and makes it impossible to operate. It often ends up. This tendency is particularly strong with respect to the supply of the granular material to the stirring vessel 14 in the pressure vessel 12.
On the other hand, by using a material seal screw, airtightness is maintained by the powder itself fed one after another at a filling rate of 100%, so that internal water vapor does not leak, resulting in such inconvenience. Will not occur.

なお、上記実施例においては、粉粒体を、加圧下で、回転攪拌軸に対して直角方向から見た回転軌跡がほとんど隙間なく並ぶように配列された複数の棒状羽根により撹拌しながら飽和蒸気、もしくは、飽和蒸気およびスプレー状に散布された水分とまんべんなく混合して加熱するように構成したので、粉粒体が飽和蒸気、もしくは飽和蒸気および水分と充分に且つ均一に混合されて短時間で高い殺菌効果が得られる。
一方、上記実施例において、加熱殺菌や減菌に使用された飽和蒸気は、水分となって、そのまま粉粒体中に添加されるが、このとき撹拌の効果により、かたまりやブロックやだまにならず均一に添加される。
In the above embodiment, the saturated vapor is stirred while the powder is agitated by a plurality of rod-shaped blades arranged so that the rotation trajectory viewed from the direction perpendicular to the rotation agitation shaft is arranged with almost no gap under pressure. Or, it is configured to be mixed and heated evenly with saturated steam and sprayed water, so that the granular material is sufficiently and uniformly mixed with saturated steam or saturated steam and water in a short time. A high bactericidal effect is obtained.
On the other hand, in the above embodiment, the saturated steam used for heat sterilization and sterilization becomes moisture and is added as it is to the granular material. It is added uniformly.

また、上記実施例においては、攪拌容器内における飽和蒸気による結露の発生を防ぐことができるので、攪拌容器内に水分と熱によって変性した粉粒体が壁面に張り付くことがなく、その結果、攪拌機能が阻害されることがなくスムーズな連続運転が長期に亘ってできる。   Further, in the above embodiment, since it is possible to prevent the occurrence of condensation due to saturated steam in the stirring vessel, the granular material modified by moisture and heat does not stick to the wall surface in the stirring vessel, and as a result, stirring The function is not hindered and a smooth continuous operation can be performed over a long period of time.

以上、本発明に係る粉粒体の熱処理装置について実施例を挙げて詳細に説明したが、本発明は、上記実施例には限定されず、本発明の要旨を逸脱しない範囲において、各種の改良や設計の変更を行ってもよいのは、もちろんである。   As mentioned above, although the Example was given and demonstrated in detail about the heat processing apparatus of the granular material which concerns on this invention, this invention is not limited to the said Example, In the range which does not deviate from the summary of this invention, various improvement Of course, the design may be changed.

(a)は、本発明に係る粉粒体の熱処理装置の一実施形態を概念的に示す正面断面図であり、(b)は、(a)に示す熱処理装置のIB−IB線断面図である。(A) is front sectional drawing which shows notionally one Embodiment of the heat processing apparatus of the granular material which concerns on this invention, (b) is IB-IB sectional view taken on the line of the heat processing apparatus shown to (a). is there. (a)は、図1(a)に示す熱処理装置の上面断面図であり、(b)は、(a)に示す熱処理装置のIIB−IIB線断面図である。(A) is the upper surface sectional drawing of the heat processing apparatus shown to Fig.1 (a), (b) is the IIB-IIB sectional view taken on the line of the heat processing apparatus shown to (a). 図1(a)に示す熱処理装置の端面模式図である。It is an end surface schematic diagram of the heat processing apparatus shown to Fig.1 (a). 図1(a)に示す熱処理装置に用いられる撹拌羽根の一実施例の展開図である。It is an expanded view of one Example of the stirring blade used for the heat processing apparatus shown to Fig.1 (a).

符号の説明Explanation of symbols

10 粉粒体の熱処理装置(熱処理装置)
12 円筒形外側圧力容器(圧力容器)
14 円筒形内側攪拌容器(攪拌容器)
16 撹拌機
18 円筒胴体
18a 粉粒体の投入口(投入口)
18b 粉粒体の排出口(排出口)
18c 水または温湯の供給口(供給口)
18d 安全弁
18e 開閉弁
18f ドレンセパレータ
20 先端鏡板
22 基端側蓋部材(蓋部材)
24 飽和蒸気の供給管
24a 飽和蒸気の吹込口(吹込口)
24b 飽和蒸気の吹出口(吹出口)
25 管路
26 円筒ケーシング
26a、26b、26c、26d 円筒状分割カートリッジ
27a 粉粒体の導入口(導入口)
27b 粉粒体の導出口(導出口)
27c スプレーノズル
28a、28b パンチングプレート
30 攪拌軸
32 ピン状の攪拌羽根(攪拌羽根)
34 ホイール状の支持部材
36、38 軸受ユニット
40 シール部材
42 ホッパ
44 マテリアルシールスクリュ
46 ロータリーバルブ
10 Heat treatment equipment for powder (heat treatment equipment)
12 Cylindrical outer pressure vessel (pressure vessel)
14 Cylindrical inner stirring container (stirring container)
16 Stirrer 18 Cylindrical body 18a Input port for powder and granular material (input port)
18b Powder outlet (discharge outlet)
18c Water or hot water supply port (supply port)
18d Safety valve 18e On-off valve 18f Drain separator 20 Front end plate 22 Base end side lid member (lid member)
24 Saturated steam supply pipe 24a Saturated steam inlet (blower inlet)
24b Saturated steam outlet (outlet)
25 Pipe line 26 Cylindrical casing 26a, 26b, 26c, 26d Cylindrical divided cartridge 27a Introducing port (introducing port) of granular material
27b Powder outlet (outlet)
27c Spray nozzle 28a, 28b Punching plate 30 Stirring shaft 32 Pin-shaped stirring blade (stirring blade)
34 Wheel-shaped support member 36, 38 Bearing unit 40 Seal member 42 Hopper 44 Material seal screw 46 Rotary valve

Claims (11)

一端近くに粉粒体の投入口、他端近くに粉粒体の排出口を備え、さらに、飽和蒸気の吹込口および水または温湯の供給口を備える円筒形外側圧力容器と、
前記投入口に連通する粉粒体の導入口、前記排出口に連通する粉粒体の導出口および前記飽和蒸気が流通可能な多孔板を備え、前記円筒形外側圧力容器内に配置される円筒形内側攪拌容器と、
前記円筒形内側攪拌容器内に配置され、前記投入口から投入され、前記導入口を経て前記円筒形内側攪拌容器内に導入された粉粒体を撹拌しながら前記導出口に向けて移送する撹拌手段と、
前記内側攪拌容器に配置され、その内部に導入され、前記攪拌手段によって攪拌される粉粒体に水または温湯をスプレー状に加水するための、前記供給口に連通するスプレーノズルとを有し、
前記投入口から投入され、前記導入口から前記円筒形内側攪拌容器内に導入された粉粒体を、前記撹拌手段によって撹拌しながら、前記スプレーノズルから水または温湯をスプレー状に加水しつつ、前記吹込口から吹き込まれ、前記多孔板を通して導入された飽和蒸気によって熱処理することを特徴とする粉粒体の熱処理装置。
A cylindrical outer pressure vessel provided with a powder inlet near one end, a powder outlet near the other end, and further provided with a saturated steam inlet and water or hot water supply port;
A cylinder disposed in the cylindrical outer pressure vessel, comprising an inlet for the granular material communicating with the inlet, an outlet for the granular material communicating with the outlet, and a porous plate through which the saturated vapor can flow. An inner stirring vessel,
Stirring that is disposed in the cylindrical inner stirring vessel, is transferred from the charging port, and is transferred to the outlet port while stirring the powder particles introduced into the cylindrical inner stirring vessel through the inlet port. Means,
A spray nozzle that communicates with the supply port for hydrating water or hot water in the form of a spray to the powder that is disposed in the inner stirring vessel, introduced into the stirring vessel, and stirred by the stirring means;
While stirring the powder particles introduced from the introduction port and introduced into the cylindrical inner stirring vessel from the introduction port by the stirring means, water or hot water is added from the spray nozzle in a spray form, A heat treatment apparatus for a granular material, wherein heat treatment is performed with saturated steam blown from the blow-in opening and introduced through the perforated plate.
前記円筒形外側圧力容器は、前記排出口側の前記他端側に開閉可能な開閉蓋を備える請求項1に記載の粉粒体の熱処理装置。   The said cylindrical outer side pressure vessel is a heat processing apparatus of the granular material of Claim 1 provided with the opening-and-closing lid which can be opened and closed in the said other end side at the said discharge port side. 前記円筒形内側攪拌容器は、その両端の少なくとも一方に円形の前記多孔板を備える請求項1または2に記載の粉粒体の熱処理装置。   The said cylindrical inner side stirring container is a heat processing apparatus of the granular material of Claim 1 or 2 provided with the said circular perforated plate in at least one of the both ends. 前記多孔板は、前記円筒形内側攪拌容器の前記導入口側の前記一端側に設けられる円形のパンチングプレートである請求項3に記載の粉粒体の熱処理装置。   The heat treatment apparatus for a granular material according to claim 3, wherein the perforated plate is a circular punching plate provided on the one end side on the inlet side of the cylindrical inner stirring vessel. 前記円筒形内側攪拌容器は、互いに接する複数の円筒形内部カートリッジからなり、前記複数の円筒形内部カートリッジの各々は、前記円筒形外側圧力容器内に、配設された少なくとも2本のガイドレールによって移動可能に支持される請求項1〜4のいずれかに記載の粉粒体の熱処理装置。   The cylindrical inner stirring vessel includes a plurality of cylindrical inner cartridges in contact with each other, and each of the plurality of cylindrical inner cartridges is provided by at least two guide rails disposed in the cylindrical outer pressure vessel. The heat processing apparatus of the granular material in any one of Claims 1-4 supported so that a movement is possible. 前記撹拌手段は、回転攪拌軸およびこの回転攪拌軸上に植設された、前記円筒形内側攪拌容器内で回転する複数の棒状羽根を備える請求項1〜5のいずれかに記載の粉粒体の熱処理装置。 The granular material according to any one of claims 1 to 5, wherein the stirring means includes a rotating stirring shaft and a plurality of rod-shaped blades that are planted on the rotating stirring shaft and rotate in the cylindrical inner stirring vessel . Heat treatment equipment. 前記複数の棒状羽根は、前記回転攪拌軸上に周囲に向かってラセン状に植設され、前記回転攪拌軸に対して直角方向から見た回転軌跡が前記回転攪拌軸の軸方向にほとんど隙間なく並ぶように配列される請求項6に記載の粉粒体の熱処理装置。   The plurality of rod-shaped blades are helically planted on the rotary stirring shaft toward the periphery, and the rotation trajectory viewed from a direction perpendicular to the rotary stirring shaft has almost no gap in the axial direction of the rotary stirring shaft. The heat processing apparatus of the granular material of Claim 6 arranged so that it may rank. 前記回転攪拌軸は、
前記他端側の先端は、前記円筒形内側攪拌容器から延在し、前記円筒形外側圧力容器の内側に、固定手段によって取り外し可能に固定された支持部材で支持された軸受ユニットによって回転可能に支持され、
前記一端側の先端は、前記円筒形内側攪拌容器から延在し、前記円筒形外側圧力容器の側板の外側に取り付けられた軸受ユニットによって回転可能に支持され、
前記回転攪拌軸と前記円筒形外側圧力容器の側板との間は、シール部材によって気密にシールされる請求項6または7に記載の粉粒体の熱処理装置。
The rotary stirring shaft is
The tip on the other end side extends from the cylindrical inner stirring vessel and is rotatable by a bearing unit supported by a support member that is detachably fixed inside the cylindrical outer pressure vessel by a fixing means. Supported,
The tip on the one end side extends from the cylindrical inner stirring vessel and is rotatably supported by a bearing unit attached to the outer side of the side plate of the cylindrical outer pressure vessel,
The heat treatment apparatus for granular material according to claim 6 or 7, wherein a space between the rotary stirring shaft and a side plate of the cylindrical outer pressure vessel is hermetically sealed by a seal member.
前記回転攪拌軸を展開した時、前記複数の棒状羽根が並ぶ直線は、前記回転攪拌軸の軸線に垂直な線に対して傾斜している請求項6〜8のいずれかに記載の粉粒体の熱処理装置。The granular material according to any one of claims 6 to 8, wherein when the rotary stirring shaft is expanded, a straight line in which the plurality of rod-shaped blades are arranged is inclined with respect to a line perpendicular to the axis of the rotary stirring shaft. Heat treatment equipment. さらに、前記円筒形外側圧力容器の前記投入口に接続され、熱処理前の粉粒体を前記投入口を経て前記円筒形内側攪拌容器の前記導入口まで圧力遮断状態で移送して前記円筒形内側攪拌容器内に供給するマテリアルシールスクリュと、
前記円筒形外側圧力容器の前記排出口に接続され、該排出口から殺菌されかつ加水熱処理された粉粒体を排出するためのロータリーバルブと、を有し、
前記円筒形外側圧力容器は、その内部が前記吹込口から供給された飽和蒸気によって所定圧力に加圧され、
前記円筒形外側圧力容器内の前記所定圧力は、前記マテリアルシールスクリュとロータリーバルブとによって維持される請求項1〜のいずれかに記載の粉粒体の熱処理装置。
Further, it is connected to the inlet of the cylindrical outer pressure vessel, and the granular material before heat treatment is transferred through the inlet to the inlet of the cylindrical inner stirring vessel in a pressure-blocked state, and the cylindrical inner A material seal screw to be fed into the stirring vessel ;
A rotary valve connected to the discharge port of the cylindrical outer pressure vessel, for discharging the sterilized and hydrothermally treated powder particles from the discharge port,
The cylindrical outer pressure vessel is pressurized to a predetermined pressure by saturated steam supplied from the blowing port inside,
The heat treatment apparatus for a granular material according to any one of claims 1 to 9 , wherein the predetermined pressure in the cylindrical outer pressure vessel is maintained by the material seal screw and a rotary valve .
さらに、熱処理前の粉粒体を保持するホッパを有し、Furthermore, it has a hopper that holds the granular material before heat treatment,
熱処理前の粉粒体は、前記ホッパから前記マテリアルシールスクリュに供給される請求項10に記載の粉粒体の熱処理装置。The heat treatment apparatus for granular material according to claim 10, wherein the granular material before heat treatment is supplied from the hopper to the material seal screw.
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