JPS63148967A - Vacuum belt drier - Google Patents
Vacuum belt drierInfo
- Publication number
- JPS63148967A JPS63148967A JP61296283A JP29628386A JPS63148967A JP S63148967 A JPS63148967 A JP S63148967A JP 61296283 A JP61296283 A JP 61296283A JP 29628386 A JP29628386 A JP 29628386A JP S63148967 A JPS63148967 A JP S63148967A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- belt
- conveyor belt
- endless conveyor
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002994 raw material Substances 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000006072 paste Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 31
- 238000001291 vacuum drying Methods 0.000 description 14
- 238000001035 drying Methods 0.000 description 13
- 239000000047 product Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000001816 cooling Methods 0.000 description 11
- 235000013305 food Nutrition 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000013067 intermediate product Substances 0.000 description 6
- 239000010409 thin film Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000021067 refined food Nutrition 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 235000006694 eating habits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005092 sublimation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Formation And Processing Of Food Products (AREA)
Abstract
Description
【発明の詳細な説明】
産業上立札且分立
本発明は真空ベルト乾燥機に関するものであり、更に詳
しくは液状、スラリー状もしくはペースト状の原材料を
真空乾燥し、顆粒状の乾燥製品として取出すための真空
ベルト乾燥機に於ける原材料供給装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum belt dryer, and more particularly to a vacuum belt dryer for vacuum drying liquid, slurry or paste raw materials and extracting them as granular dry products. This invention relates to a raw material supply device in a vacuum belt dryer.
従来皇肢歪
近年、食生活の多様化に伴って数多くの種類の加工食品
材料やインスタント食品が市販されている。このような
食品加工分野に於いては、消費者が製品を調理素材とし
て使用する場合の溶解性と即席性を所定の水準に維持す
ると共に、最終製品に品質の低下と成分の変質を伴わな
い復元性を付与する目的で、各種の常圧乾燥装置や真空
乾燥装置が使用されている。このような乾燥装置のなか
でも調理素材たる製品の熔解性を良好な水準に維持する
ことが比較的容易である点に着目され、真空乾燥装置の
使用分野が急速に増大しつつある。汎用の真空乾燥装置
としては、噴霧乾燥機や凍結乾燥機が知られているが、
前者は乾燥コストが安価である反面、製品の溶解性と品
質の保持性部あるいは成分変化の防止性能が幾分劣り、
後者は氷結、昇華工程を採用していることに起因して構
造の複雑化や乾燥コストの高騰という問題点を付随せし
めている。ここに於いて、上記噴霧乾燥機や凍結乾燥機
に認められている実用上の問題点の解決手段として、真
空ベルト乾燥機の開発が要請されるに至った。真空ベル
ト乾燥機は、真空容器内に加熱ゾーンとベルトｍ送装置
を設け、液状、スラリー状、もしくはペースト状をなす
食品材料を無端搬送ベルトＦに薄膜状に供給し、該無端
搬送ベルトの回動によって食品材料を加熱ゾーンに導き
、比較的低温の乾燥条件下で真空乾燥を施すように構成
されている。この際、ベルト上に薄膜状を呈して載置さ
れた食品材料には内部に含有されている水分の激しい蒸
発現象が生起し、前記食品材料は膨化すると゛共に内部
に多数の通気孔を形成し、多孔質の中間製品としてクラ
ッシャーに送り出される。このように真空ベルト乾燥機
は、慣用の噴霧乾燥機や凍結乾燥機の代替技術手段とし
て次第にその有用性が認識されつつある。In recent years, with the diversification of dietary habits, many types of processed food materials and instant foods have become commercially available. In this field of food processing, it is important to maintain the solubility and ready-to-ready properties at a specified level when consumers use the product as a cooking ingredient, and to ensure that the final product does not suffer from deterioration in quality or alteration of ingredients. Various normal pressure drying devices and vacuum drying devices are used for the purpose of imparting restorability. Among such drying devices, attention has been paid to the fact that it is relatively easy to maintain the solubility of products as cooking materials at a good level, and the field of use of vacuum drying devices is rapidly increasing. Spray dryers and freeze dryers are known as general-purpose vacuum drying equipment, but
While the former has low drying costs, it is somewhat inferior in product solubility, quality retention, and ability to prevent changes in ingredients.
The latter method uses freezing and sublimation processes, resulting in problems such as a complicated structure and a rise in drying costs. At this time, there has been a demand for the development of a vacuum belt dryer as a means of solving the practical problems observed in the above-mentioned spray dryers and freeze dryers. A vacuum belt dryer is equipped with a heating zone and a belt feeding device in a vacuum container, and supplies a food material in the form of a liquid, slurry, or paste to an endless conveyor belt F in the form of a thin film, and rotates the endless conveyor belt F. The food material is introduced into a heating zone by motion and vacuum-dried under drying conditions at a relatively low temperature. At this time, the food material placed on the belt in the form of a thin film undergoes a violent evaporation phenomenon of the water contained inside, causing the food material to swell and form numerous ventilation holes inside. It is then sent to a crusher as a porous intermediate product. Vacuum belt dryers are thus increasingly being recognized as an alternative technology to conventional spray dryers and freeze dryers.
＜Ｍｊｌシよ゛と るμ 占
真空ベルト乾燥機は、品質の保持性、成分変化の防止性
、あるいは乾燥コストの低減性に於いて、公知の噴霧乾
燥機や凍結乾燥機を大幅に上進る性能を発揮することが
できるが、乾燥処理を施すべき食品材料の多様化に対応
するためには構造ならびに機能上更に改良を要する点が
少なくない。The vacuum belt dryer is significantly superior to known spray dryers and freeze dryers in terms of quality retention, prevention of component changes, and reduction in drying costs. However, in order to respond to the diversification of food materials to be dried, there are many points that require further improvements in terms of structure and function.
例えば、スラリー状もしくはペースト状に調合された食
品原材料の供給に際し、慣用の原材料供給装置に於いて
は、原材料吐出ノズルが略一定の揺動速度で首振り運動
をしながら、無端搬送ベルト上に原材料を載置して行く
ので、第４図に示すように首振り運動の方向変換点に前
記原材料のＭ憂部分が形成される。このように他の部分
に比較して厚みの大きな１！！畳部分を形成しながら無
端搬送ベルト上に載置された原材料に、厚みの薄い他の
部分と同一の加熱条件に従って乾燥処理を施すと、前記
厚みの増加によって重畳部分の乾燥効果が低下し、乾燥
不良に起因する変質等の問題が発生する０反面、上記重
畳部分に適合するように加熱温度を高めに設定すると、
厚みの薄い他の部分が過剰乾燥状態に陥り、これに伴い
品質の低下や変質等の問題が発生する。For example, when feeding food raw materials prepared in the form of a slurry or paste, in a conventional raw material supply device, the raw material discharge nozzle swings at a substantially constant oscillating speed while moving the raw material onto an endless conveyor belt. As the raw material is placed, the M-shaped portion of the raw material is formed at the point where the direction of the oscillating motion changes, as shown in FIG. In this way, it is thicker than other parts! ! When the raw material placed on the endless conveyor belt while forming the tatami part is subjected to drying treatment under the same heating conditions as other thinner parts, the drying effect of the overlapped part decreases due to the increase in thickness. On the other hand, if the heating temperature is set high to suit the overlapping area,
Other thinner parts become overly dry, which causes problems such as deterioration and deterioration of quality.
また固定式のヘッダーパイプに多数の給液ノズルを整列
配置した給液装置に於いては、給液ノズル間隔と同一の
直線状の給液軌跡を画いて無端搬送ベルに上に原材料が
吐出されるに過ぎず、ｆ％端搬送ベルトの給液面の有効
利用が少なからず制約される。In addition, in a liquid supply device in which a large number of liquid supply nozzles are arranged in a line on a fixed header pipe, the raw material is discharged onto an endless conveyor bell in a linear liquid supply trajectory that is the same as the liquid supply nozzle interval. Therefore, the effective use of the liquid supply surface of the f% end conveyor belt is considerably restricted.
本発明の主要な目的は、在来の真空ベルト乾燥機に認め
られた上記の如き問題点を解消し得る、構造の簡易性と
乾燥機能の安定性を備えた真空ベルト乾燥機を提供する
ことにある。The main object of the present invention is to provide a vacuum belt dryer having a simple structure and a stable drying function, which can solve the above-mentioned problems found in conventional vacuum belt dryers. It is in.
■塁点土股夾工ゑ亙左Ω王役
斯かる目的に鑑みて本発明は、液状、スラリー状もしく
はペースト状に調合された原材料を真空乾燥し、顆粒状
の乾燥製品として取出すための真空ベルト乾燥機に於い
て、真空容器内に回動自在に架装された無端搬送ベルト
の原材料導入側上面に、複数の給液ノズルを整列配置し
てなるヘッダーパイプを前記無端搬送ベルトの進行方向
に対し直交するように配設すると共に、このヘッダーパ
イプに往復揺動装置を接続し、無端搬送ベルトの幅方向
に沿って給液ノズルが往復動する給液装置を構成してな
る真空ベルト乾燥機を提供するものである。In view of this purpose, the present invention is a vacuum drying method for vacuum drying raw materials prepared in a liquid, slurry or paste form and taking them out as a dry product in the form of granules. In a belt dryer, a header pipe consisting of a plurality of liquid supply nozzles arranged in an array is installed on the upper surface of the raw material introduction side of an endless conveyor belt rotatably mounted in a vacuum container in the direction of travel of the endless conveyor belt. A vacuum belt dryer is constructed by connecting a reciprocating swing device to this header pipe so as to be perpendicular to the header pipe, and configuring a liquid supply device in which a liquid supply nozzle reciprocates along the width direction of the endless conveyor belt. It provides an opportunity for
立里
液状、スラリー状もしくはペースト状に調合された加工
食品の原材料は、複数の給液ノズルの同時揺動により、
無端搬送ベルト上に厚みの増大した！壺部分を形成する
ことなく蛇行トレースを画きながら薄膜状・に供給載置
され、この状態で無端ベルトの恒速移動によって後続の
乾燥・冷却装置で真空乾燥され、この後、プレクラッシ
ャーならびにメインクラッシャーによって顆粒状に粉砕
され、真空ロック機構を有する製品取出しチャンバーか
ら回分方式で系外に取出される。Raw materials for processed foods prepared in the form of liquid, slurry or paste are processed by simultaneous swinging of multiple liquid supply nozzles.
The thickness has increased on the endless conveyor belt! It is fed and placed in a thin film form while creating a meandering trace without forming a pot part, and in this state, it is vacuum dried in the subsequent drying and cooling device by constant speed movement of an endless belt. After this, it is transferred to the pre-crusher and main crusher. The product is crushed into granules and taken out of the system in batches from a product take-out chamber with a vacuum lock mechanism.
皇１皿
第１図は本発明装置の全体構造を例示する一部分を断面
にした正面図であり、第２図は往復動給液装置の略示斜
視図である。また第３図および第４図は、無端搬送ベル
ト上に供給された原材料の蛇行トレースを例示する平面
図である。FIG. 1 is a partially sectional front view illustrating the overall structure of the device of the present invention, and FIG. 2 is a schematic perspective view of the reciprocating liquid supply device. 3 and 4 are plan views illustrating the meandering trace of the raw material fed onto the endless conveyor belt.
第１図に於いて真空容器（１８）の本体には、公知の真
空ポンプ（１９） 、コールドトランプ（２０） 、な
らびにチラーユニット（２１）からなるＸ空発住装置（
２８）が配設されており、該真空発生装置を作動させる
ことによって原材料の乾燥時に真空容器（１８）の内部
に１０Ｔｏｒｒ前後の真空度を保持し得るように構成さ
れている。In Fig. 1, the main body of the vacuum container (18) includes a known vacuum pump (19), a cold lamp (20), and a chiller unit (21).
28), and is configured so that by operating the vacuum generator, a degree of vacuum of around 10 Torr can be maintained inside the vacuum container (18) during drying of raw materials.
一方、真空容器（１８）の内部には、無端搬送ベル！−
（１）の移動経路に原材料供給側から製品送出側に向か
って、内部に熱水の流路を形成してなる第１乃至第３の
加熱プレート（６ａ）、（６ｂ）、（６ｃ）と、内部に
冷却水の流路を形成してなる冷却プレート（７）が順次
配設されており、これに対応して前記加熱プレートと冷
却プレートによって構成された真空乾燥冷却装置（８）
に所定温度に調整された熱水ならびに冷却水を供給する
ため、前記真空容器（１８）の本体には、熱水循環ライ
ン加熱器として機能する公知のチューブ式もしくはプレ
ート式熱交換器（２２） 、エアー加圧により熱水の循
環を促進する膨張タンク（２３）、ならびに温度制御回
路〔図示省略〕に接続された循環ポンプ（２４）からな
る加熱媒体と冷却媒体の循環装置が接続されている。On the other hand, inside the vacuum container (18) is an endless conveyor bell! −
First to third heating plates (6a), (6b), and (6c) each having a hot water flow path formed therein from the raw material supply side to the product delivery side along the movement path of (1); , cooling plates (7) each having a cooling water flow path formed therein are sequentially arranged, and correspondingly a vacuum drying/cooling device (8) constituted by the heating plate and the cooling plate.
In order to supply hot water and cooling water adjusted to a predetermined temperature, the main body of the vacuum container (18) is equipped with a known tube or plate heat exchanger (22) that functions as a hot water circulation line heater. , a heating medium and cooling medium circulation device consisting of an expansion tank (23) that promotes circulation of hot water by air pressurization, and a circulation pump (24) connected to a temperature control circuit (not shown) is connected. .
無端搬送装置は、基本的にはモータ〔図示省略〕、ドラ
イブローラ（２６） 、ドリブンローラ（２７） 、な
らびに合成繊維糸条、例えばポリエステル繊維糸条のｍ
織布を無端状に接続してなるメツシュ状の無端搬送ベル
ト（１）から構成されており、該無端搬送ベルトを前記
ドライブローラ（２６）とドリブンローラ（２７）に巻
回してなる駆動系を構成することによって、０．０５乃
至０．５ｍ＋／ｗｉｎの搬送速度を有する恒速搬送装置
を形成している。無端搬送ベルト（１）は、無端搬送装
置に要求される一般的な特性を考慮し、強度、摩擦係数
、耐熱性および伝熱性に優れた合成繊維糸条の編織布か
ら製作するが、本発明装置に於いては真空乾燥された中
間製品の剥離性、織目や編目からの原材料や中間製品の
洩れ防止性、ならびに洗浄性を所定の水準に維持するた
めポリエステルのマルチフィラメントヤーンの織成布か
ら無端搬送ベルトを製作している。尚、無端搬送ベルト
（１）は、上記の要求特性に鑑みて、シリコンやポリテ
トラフルオルエチレン等の樹脂で表面処理を施すことが
望ましい。The endless conveyance device basically consists of a motor (not shown), a drive roller (26), a driven roller (27), and a synthetic fiber yarn such as a polyester fiber yarn.
It is composed of a mesh-like endless conveyor belt (1) formed by connecting woven fabrics in an endless manner, and a drive system in which the endless conveyor belt is wound around the drive roller (26) and driven roller (27). By configuring this, a constant speed conveying device having a conveying speed of 0.05 to 0.5 m+/win is formed. The endless conveyor belt (1) is manufactured from a knitted fabric made of synthetic fiber yarn with excellent strength, coefficient of friction, heat resistance, and heat conductivity in consideration of the general characteristics required for endless conveyance devices. In order to maintain the peelability of the vacuum-dried intermediate product, the leakage prevention of raw materials and intermediate products from the weave and stitches, and the washability at a specified level, the equipment uses a woven fabric made of polyester multifilament yarn. We manufacture endless conveyor belts. Note that, in view of the above-mentioned required characteristics, it is desirable that the endless conveyor belt (1) be surface-treated with a resin such as silicone or polytetrafluoroethylene.
給液装置（５）は、前記無端用送ベルト（１）の移動経
路の最も上流側に配設されており、複数個の給液ノズル
（３ａ） （３ｂ） （３ｃ）・・・を所定のピッ
チで固着してなるヘッダーパイプ（４）と、このヘッダ
ーパイプに接続された往復揺動装置（３４）から構成さ
れている。更に詳しく説明すると、給液装置（５）は、
第２図に例示するように真空容器（１８）内に回動自在
に架装された無端搬送ベルト（１）の原材料導入側上面
に、複数の給液ノズル（３ａ） （３ｂ） （３ｃ
）・・・を整列配置してなるへ７ダーパイプ（４）を前
記無端搬送ベルト（１）の進行方向に対して直交するよ
うに配設すると共に、モータ（３１）および正逆回転減
速機（３５）から動力を供給され首振り運動する駆動軸
（３２）にヘッダーパイプの揺動アーム（２）を固着し
て給液ノズル（３ａ）（３ｂ） （３ｃ） −の往復
揺動袋ｆｉ！ （３４）を構成している。一方、ヘッダ
ーパイプ（４）は、無端搬送ベルト（１）の上面と所定
の間隔を置いた状態で案内部材、例えばローラ（４ａ）
とガイドレール（４ｂ）によって揺動自在に支持されて
おり、原料タンク（３６）内に貯溜されている原材料は
、第１図に示すようにこの原料タンクに接続された原料
供給バルブ（３７）を介してヘッダーパイプ（４）内に
流入し、このヘッダーパイプの無端搬送ベルト（１）の
軸方向に沿う往復運動により液状、スラリー状もしくは
ペースト状態を呈したままそれぞれの給液ノズル（３ａ
）（３ｂ） （３ｃ）・・・から流出し、無端搬送ベ
ルト（１）上に蛇行載置される。The liquid supply device (5) is disposed at the most upstream side of the moving path of the endless feed belt (1), and has a plurality of liquid supply nozzles (3a) (3b) (3c)... It consists of a header pipe (4) fixed at a pitch of 1, and a reciprocating swing device (34) connected to this header pipe. To explain in more detail, the liquid supply device (5) is
As illustrated in FIG. 2, a plurality of liquid supply nozzles (3a) (3b) (3c
)... are disposed in a line so as to be perpendicular to the traveling direction of the endless conveyor belt (1), and a motor (31) and a forward/reverse rotation speed reducer ( The swinging arm (2) of the header pipe is fixed to the drive shaft (32) which is supplied with power from 35) and swings, thereby reciprocating the swinging bag fi! (34). On the other hand, the header pipe (4) is connected to a guide member, such as a roller (4a), at a predetermined distance from the upper surface of the endless conveyor belt (1).
The raw material stored in the raw material tank (36) is supported swingably by the guide rail (4b) and the raw material supply valve (37) connected to this raw material tank as shown in FIG. The liquid flows into the header pipe (4) through the header pipe, and due to the reciprocating motion along the axial direction of the endless conveyor belt (1) of this header pipe, it is delivered to each liquid supply nozzle (3a) while remaining in a liquid, slurry or paste state.
) (3b) (3c) ... and is placed on the endless conveyor belt (1) in a meandering manner.
本発明装置に於いては、前記正逆回転減速機（３５）の
減速比を無端搬送ベル） （１）の走行速度に対して調
節することによって、第３図に例示するように蛇行した
供給トレースの折り返し点に原材料の重畳配置に起因す
る厚みの増大部分が殆ど発生せず、且つ無端搬送ベルト
（１）の全面を原材料の載置面として機能させ得る原材
料の蛇行供給条件を確保している。In the device of the present invention, by adjusting the reduction ratio of the forward/reverse rotary speed reducer (35) with respect to the running speed of the endless conveyor belt (1), a meandering supply can be achieved as illustrated in FIG. Meandering raw material supply conditions are ensured in which almost no increase in thickness due to the overlapping arrangement of raw materials occurs at the turning point of the trace, and the entire surface of the endless conveyor belt (1) can function as a loading surface for the raw materials. There is.
一方、無端搬送ベルトによって形成された真空乾燥経路
には、無端搬送ベルト（１）の下面に沿って熱水流路を
内蔵した加熱プレート（６ａ）、（６ｂ）、（６ｃ）と
、冷却水流路を内蔵した冷却プレート（７）からなる熱
水循環式の真空乾燥冷却装置（８）が配置されている。On the other hand, the vacuum drying path formed by the endless conveyor belt includes heating plates (6a), (6b), (6c) with built-in hot water channels along the bottom surface of the endless conveyor belt (1), and cooling water channels. A hot water circulation type vacuum drying cooling device (8) consisting of a cooling plate (7) with a built-in cooling plate (7) is arranged.
第１の加熱プレート（６ａ）によって構成された第１加
熱ゾーンに導入された薄膜状の原材料は多量の水分を含
んでいるが、加熱プレート（６ａ）内を流れる高温の熱
水から伝達された熱エネルギーによって原材料が乾燥さ
れ、表面と内部で同時に水分の蒸発が始まるため、薄膜
状に延展された原材料は激しく膨化しながら真空乾燥を
施される。この第■加熱ゾーンは恒率乾燥状態に保持さ
れているから、原材料自身の温度は殆ど上昇せず、原材
料は保有水分の略半分を蒸発させた状態で後続の第■加
熱ゾーンに送り出される。The thin film raw material introduced into the first heating zone constituted by the first heating plate (6a) contains a large amount of moisture, which is transferred from the high temperature hot water flowing inside the heating plate (6a). The raw material is dried by thermal energy, and moisture begins to evaporate on the surface and inside at the same time, causing the raw material spread into a thin film to undergo vacuum drying while expanding vigorously. Since this No. 1 heating zone is maintained at a constant rate of dryness, the temperature of the raw material itself hardly increases, and the raw material is sent to the subsequent No. 1 heating zone in a state in which approximately half of its retained moisture has been evaporated.
第■加熱ゾーンを形成する第２の加熱プレー） （６ｂ
）内には、前記第１の加熱プレート（６ａ）内に供給さ
れる熱水よりも稍低温の熱水が導入されており、原材料
は恒率乾燥によって保有水分の大部分を蒸発させる。こ
のため原材料の膨化厚さと表面形状は殆ど変化せず、原
材料の表面は多少硬化すると共に原材料自身の温度も上
昇し始める。この第■加熱ゾーンに於いては、原材料の
熱伝導率が多少低下するので、加熱プレー） （６ｂ）
内に導入する熱水の温度を第■加熱ゾーンよりも少し低
目に設定し、且つ、熱流速も幾分小さくなるように乾燥
処理条件を調節する。斯くして原材料は、含有水分の略
９０パーセントを蒸発せしめた状態で第■加熱ゾーンか
ら後続の第■加熱ゾーンに送り出される。(Second heating play forming a heating zone) (6b
) is introduced with hot water having a slightly lower temperature than the hot water supplied to the first heating plate (6a), and the raw material is subjected to constant rate drying to evaporate most of the water contained therein. Therefore, the expanded thickness and surface shape of the raw material hardly change, the surface of the raw material hardens to some extent, and the temperature of the raw material itself begins to rise. In this No. 1 heating zone, the thermal conductivity of the raw material decreases to some extent, so the heating plate) (6b)
The drying treatment conditions are adjusted so that the temperature of the hot water introduced into the heating zone is set slightly lower than that of the first heating zone, and the heat flow rate is also slightly lower. In this way, the raw material is sent from the first heating zone to the subsequent second heating zone in a state in which approximately 90 percent of the moisture content has been evaporated.
第３の加熱プレート（６ｃ）によって形成された第■加
熱ゾーンに導入された原材料は、前記第■加熱ゾーンな
らびに第■加熱ゾーンよりも更に低い水分保有量を有し
、膨化現象を伴うことなく最終水分率迄緩やかに真空乾
燥される。The raw material introduced into the No. 1 heating zone formed by the third heating plate (6c) has a lower moisture content than the No. 1 heating zone and the No. It is slowly vacuum dried to the final moisture content.
即ち、第■加熱ゾーンに於いては原材料は減率乾燥され
、表面を硬化させると共にそれ自体の温度を上昇せしめ
る。この第■加熱ゾーンに於いては、原材料の熱伝導率
が大幅に低下するので、前記第■加熱ゾーンおよび第■
加熱ゾーンよりも加熱プレート（６ｃ）内に導入すべき
熱水の温度を更に低く設定し、小さな熱流速の作用下に
原材料に真空乾燥を施し後続の冷却ゾーンに送り出す。That is, in the first heating zone, the raw material is dried at a reduced rate, hardening the surface and increasing its own temperature. In this heating zone No. 1, the thermal conductivity of the raw material decreases significantly, so the heating zone No.
The temperature of the hot water to be introduced into the heating plate (6c) is set lower than that in the heating zone, and under the effect of a small heat flow rate, the raw material is subjected to vacuum drying and sent to the subsequent cooling zone.
冷却ゾーンに送り込まれた原材料は、冷却プレート（７
）内に導入された低温の水によって冷却され、原材料自
身の温度を低下させると共にその硬度を増大させ、これ
によって中間製品の剥離性向上ならびに吸湿性減少に好
適な最終乾燥状態を取得する。このようにして真空下に
加熱・冷却された中間製品、即ち膨化製品は、多孔質ケ
ーキとなり、無端搬送ベルト（１）上に給液形状に対応
したトレースを残しながら無端搬送経路の終端に到達す
る。無端搬送経路の終端に到達した中間製品は、無端搬
送ベルト（１）の反転部から突出した状態で前記プレク
ラッシャー（１１）の剪断刃（ｌＯ）の上下動により一
次粉砕され、次いで回転ブレードとメツシュ金網〔何れ
も図示省略〕から構成されたメインクラッシャー（１５
）によって二次粉砕される、斯くして得られた顆粒状の
製品は、真空口。The raw material sent to the cooling zone is passed through the cooling plate (7
), which lowers the temperature of the raw material itself and increases its hardness, thereby obtaining a final dry state suitable for improving the peelability and reducing hygroscopicity of the intermediate product. The intermediate product heated and cooled under vacuum in this way, that is, the expanded product, becomes a porous cake and reaches the end of the endless conveyance path while leaving a trace corresponding to the shape of the liquid supply on the endless conveyor belt (1). do. The intermediate product that has reached the end of the endless conveyance path is primarily crushed by the vertical movement of the shearing blade (lO) of the pre-crusher (11) while protruding from the reversing part of the endless conveyance belt (1), and then crushed by the rotating blade. The main crusher (15
) The granular product thus obtained is secondarily crushed by a vacuum outlet.
り機ｆｊＩ（１６）を有する製品取出しチャンバー（１
７）内に落下し、回分方式で系外に取出される。Product unloading chamber (1) with a machine fjI (16)
7) It falls into the system and is taken out of the system in batches.
３１しυ九果
以上の説明から理解し得る如く、本発明装置を採用する
ことによって、液状、スラリー状もしくはペースト状に
調合された加工食品の原材料は、無端搬送ベルト上に複
数個の給液ノズルから同時供給状態で流出し、給液ノズ
ルの個数に対応した複数条の蛇行トレースを無端搬送ベ
ルトの表面全域に亘って分散させる。従って、本発明装
置によれば、無端用逆ベルトの全面を原材料の載置面と
して有効に利用することができ、また真空乾燥区間の全
域に亘って均一な加熱・冷却条件が持続される。この結
果、在来の真空乾燥装置を使用した場合に比較して、製
品の品質ならびに真空乾燥工程の生産性が大幅に向上す
る。As can be understood from the above explanation, by employing the apparatus of the present invention, raw materials for processed foods prepared in the form of liquid, slurry or paste can be transferred to a plurality of liquid supply sources on an endless conveyor belt. The liquid flows out from the nozzles in a simultaneous supply state, and a plurality of meandering traces corresponding to the number of liquid supply nozzles are distributed over the entire surface of the endless conveyor belt. Therefore, according to the apparatus of the present invention, the entire surface of the endless inverted belt can be effectively used as a loading surface for raw materials, and uniform heating and cooling conditions can be maintained throughout the vacuum drying section. As a result, the quality of the product and the productivity of the vacuum drying process are significantly improved compared to when conventional vacuum drying equipment is used.
第１図は本発明装置の全体構造を例示する−”ＩＨ分を
断面？、ニジた正面図であり、第２図は往復動給液装置
の略示斜視図である。また第３図および第４図は、無端
搬送ベルト上に供給された原材料の蛇行トレースを例示
する平面図である。
（１） −無端搬送ベルト、
（３ａ） （３ｂ）・−給液ノズル、（、４） −ヘ
ソグーパイプ、
（５） −型材料の供給装置、
（１８）・−真空容器、 （３＝１） −往復撮動装
置。
特 許 出 願 人 株式会社 日阪繋作所。Fig. 1 is a cross-sectional, diagonal front view of the IH section illustrating the overall structure of the device of the present invention, and Fig. 2 is a schematic perspective view of the reciprocating fluid supply device. Fig. 3 and FIG. 4 is a plan view illustrating the meandering trace of the raw material supplied onto the endless conveyor belt. (1) - Endless conveyor belt, (3a) (3b) - Liquid supply nozzle, (,4) - Hesogoo pipe, (5) - Mold material supply device, (18) - Vacuum container, (3=1) - Reciprocating imaging device. Patent applicant: Hisaka Tsunsusakusho Co., Ltd.
Claims (1)
れた原材料を真空乾燥し、顆粒状の乾燥製品として取出
すための真空ベルト乾燥機に於いて、真空容器内に回動
自在に架装された無端搬送ベルトの原材料導入側上面に
、複数の給液ノズルを整列配置してなるヘッダーパイプ
を前記無端搬送ベルトの進行方向に対し直交するように
配設すると共に、このヘッダーパイプに往復揺動装置を
接続し、無端搬送ベルトの幅方向に沿って給液ノズルが
往復動する給液装置を構成したことを特徴とする真空ベ
ルト乾燥機。(1) In a vacuum belt dryer that vacuum-dries raw materials prepared in liquid, slurry, or paste form and extracts them as dried granular products, the belt dryer is rotatably mounted inside a vacuum container. On the upper surface of the raw material introduction side of the endless conveyor belt, a header pipe having a plurality of liquid supply nozzles arranged in an array is disposed perpendicular to the traveling direction of the endless conveyor belt, and a reciprocating swing device is attached to this header pipe. A vacuum belt dryer characterized in that a liquid supply device is configured in which a liquid supply nozzle reciprocates along the width direction of an endless conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61296283A JPS63148967A (en) | 1986-12-11 | 1986-12-11 | Vacuum belt drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61296283A JPS63148967A (en) | 1986-12-11 | 1986-12-11 | Vacuum belt drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63148967A true JPS63148967A (en) | 1988-06-21 |
| JPH0334917B2 JPH0334917B2 (en) | 1991-05-24 |
Family
ID=17831556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61296283A Granted JPS63148967A (en) | 1986-12-11 | 1986-12-11 | Vacuum belt drier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63148967A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118101U (en) * | 1991-03-28 | 1992-10-22 | 株式会社日阪製作所 | Liquid supply dispersion device in vacuum belt dryer |
| JPH1151562A (en) * | 1997-07-30 | 1999-02-26 | Okawara Mfg Co Ltd | Method and apparatus for preventing clogging of supply nozzle in belt type drying machine |
| JP2013070677A (en) * | 2011-09-28 | 2013-04-22 | Hisaka Works Ltd | Liquid feeding and dispersing apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4647378B2 (en) * | 2005-04-20 | 2011-03-09 | 協和化工株式会社 | Drying equipment |
-
1986
- 1986-12-11 JP JP61296283A patent/JPS63148967A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118101U (en) * | 1991-03-28 | 1992-10-22 | 株式会社日阪製作所 | Liquid supply dispersion device in vacuum belt dryer |
| JPH1151562A (en) * | 1997-07-30 | 1999-02-26 | Okawara Mfg Co Ltd | Method and apparatus for preventing clogging of supply nozzle in belt type drying machine |
| JP2013070677A (en) * | 2011-09-28 | 2013-04-22 | Hisaka Works Ltd | Liquid feeding and dispersing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0334917B2 (en) | 1991-05-24 |
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