JPH074511B2 - Method and apparatus for producing fine frozen particles - Google Patents
Method and apparatus for producing fine frozen particlesInfo
- Publication number
- JPH074511B2 JPH074511B2 JP60255496A JP25549685A JPH074511B2 JP H074511 B2 JPH074511 B2 JP H074511B2 JP 60255496 A JP60255496 A JP 60255496A JP 25549685 A JP25549685 A JP 25549685A JP H074511 B2 JPH074511 B2 JP H074511B2
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- Japan
- Prior art keywords
- liquid
- refrigerant
- gas
- frozen particles
- storage container
- 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.)
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Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は微凍結粒の製造方法と製造装置の改良に関する
ものであり、食品加工や医薬品加工、表面処理加工等の
分野に於いて使用されるものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to improvements in a method and an apparatus for producing fine frozen particles, which are used in fields such as food processing, pharmaceutical processing, and surface treatment processing. It is something.
（従来の技術） 従前から、表面処理加工や食品加工の技術分野に於いて
は、第11図の如く、貯溜容器Ａに収容した液体窒素等の
冷媒液Ｂ上へ散布器Ｃから水や水系液体Ｄを散布するこ
とにより、アイスブラスト用の微氷粒や凍結顆粒Ｅの製
造が行なわれている（特開昭56−23882号、特公昭49−4
8832号等）。(Prior Art) Conventionally, in the technical fields of surface treatment and food processing, as shown in FIG. 11, water or a water system from a sprayer C onto a refrigerant liquid B such as liquid nitrogen contained in a storage container A. By spraying the liquid D, fine ice particles for ice blasting and frozen granules E are produced (Japanese Patent Laid-Open No. 23882/1986 and Japanese Patent Publication No. 49-4).
8832 etc.).
而して、従前のこの種微氷粒や凍結顆粒等の製造に於い
ては、前述の如く静止状態にある冷媒液の液面Ｂ′へ水
等を噴霧して凍結させるようにしているため、凍結粒Ｅ
と冷媒液Ｂとの密度差が僅かで凍結粒が沈降し難いこと
とも相俟つて凍結粒同志が相互に固着し、第12図に示す
如く、液面Ｂ′上に凍結物の皮膜Ｆが形成されることに
なる。その結果、後続する噴霧滴Ｄが皮膜Ｆの上に順次
堆積され、相当の重量を有する皮膜片Ｆが自重により沈
降することになり、凍結粒が夫々独立した状態にある所
謂さらさらした微凍結粒が得られないという問題があ
る。In the conventional production of such fine ice particles and frozen granules, water or the like is sprayed on the liquid surface B ′ of the refrigerant liquid in a stationary state to freeze it. , Frozen grain E
Frozen particles stick to each other due to the fact that the difference in density between the refrigerant liquid B and the refrigerant liquid B is small and it is difficult for the frozen particles to settle, and as shown in FIG. 12, a frozen film F is formed on the liquid surface B ′. Will be formed. As a result, the subsequent spray droplets D are sequentially deposited on the film F, and the film pieces F having a considerable weight settle due to their own weight, so-called free-flowing fine frozen particles in which the frozen particles are in an independent state. There is a problem that can not be obtained.
尚、上述の如き噴霧滴Ｄの堆積を防止するため、液体の
散布器を回転させたり、冷媒液面を水平面内に於いて移
動させる方法が開発されている（特公昭49−48832
号）。しかし、これらの方法にあつても、凍結物の皮膜
の生成及び皮膜上への噴霧滴の堆積に起因する問題は基
本的に解決されておらず、さらさらとした状態の微凍結
粒をより小型の装置によつて高能率で製造することは困
難である。In order to prevent the accumulation of the spray droplets D as described above, a method of rotating a liquid sprayer or moving the liquid surface of the refrigerant in a horizontal plane has been developed (Japanese Patent Publication No. 49-48832).
issue). However, even with these methods, the problems caused by the formation of a frozen film and the deposition of spray droplets on the film have not been basically solved, and the micro-frozen particles in a freezing state can be made smaller. It is difficult to manufacture with high efficiency by using the above equipment.
また、従前の微氷粒や凍結顆粒等の製造に於いては、水
や水系液体を直接噴霧ノズルより噴出し、ノズル孔の大
きさや液体圧を調整することにより凍結粒の粒径を変化
させるようにしている。Further, in the conventional production of fine ice particles, frozen granules, etc., water or an aqueous liquid is directly ejected from a spray nozzle, and the particle size of frozen particles is changed by adjusting the nozzle hole size and liquid pressure. I am trying.
しかし、ノズル孔の大きさや液圧のみの調整では、凍結
粒の粒径の調整範囲が極めて狭く、粒径が50μｍ以下の
微凍結粒を製造することが出来ない上、粒径の調整に手
数が掛かるという問題がある。However, adjusting only the size of the nozzle hole and the liquid pressure has an extremely narrow range for adjusting the particle size of the frozen particles, and it is not possible to manufacture fine frozen particles with a particle size of 50 μm or less, and it is troublesome to adjust the particle size. There is a problem that it takes.
（発明が解決しようとする問題点） 本発明は、従前の微氷粒や凍結顆粒の製造に於ける上述
の如き問題、即ち（１）粒径の小さなさらさらとした微
凍結粒を高能率で製造することが困難であること、
（２）凍結粒の粒径の調整範囲が狭く、50μｍ以下の微
凍結粒の製造が困難であること等の解決を課題とするも
のであり、凍結粒子が夫々独立したさらさらした状態に
あり、しかも極めて粒径の小さな微凍結粒を高能率で製
造できるようにした微凍結粒の製造方法とその製造装置
を提供するものである。(Problems to be Solved by the Invention) The present invention has the above-described problems in the production of conventional fine ice particles and frozen granules, namely, (1) the freezing fine frozen particles having a small particle size can be efficiently processed. Difficult to manufacture,
(2) It is an object to solve the problem that the adjustment range of the particle size of frozen particles is narrow and it is difficult to manufacture fine frozen particles of 50 μm or less, and the frozen particles are in an independent and free-flowing state. Moreover, the present invention provides a method for producing fine frozen particles and an apparatus for producing the same, which enables highly efficient production of fine frozen particles having an extremely small particle size.
（問題点を解決するための手段） 本発明の微凍結粒の製造方法は、密閉された貯溜容器の
下部に冷媒液を収容して、冷媒液面上に冷気相領域を形
成させておき、貯溜容器の上部から冷媒液面に向けて気
液混合体を微粒状に噴霧させることによって、噴霧粒子
が、冷気相領域を下降して冷媒液面に到達する間におい
て、噴霧粒子が表面張力により球形化されつつ徐々に凍
結されるようにすると共に、気液混合体の噴霧エネルギ
ーとは別個の運動エネルギーを冷媒液に与えて、その液
面に漣を発生させることによって、冷媒液面に到達した
凍結粒が、漣の作用により凍結粒子同士の接着及び浮遊
を阻止されつつ、冷媒液面下に速やかに沈降されて、完
全に凍結硬化されるようにしたものである。(Means for Solving the Problems) The method for producing fine frozen particles of the present invention is to store a refrigerant liquid in the lower portion of a closed storage container to form a cold gas phase region on the refrigerant liquid surface, By spraying the gas-liquid mixture into fine particles from the upper part of the storage container toward the liquid surface of the refrigerant, the sprayed particles are caused to fall by the surface tension while they descend the cold gas phase region and reach the liquid surface of the refrigerant. It is made spherical and gradually frozen, and the kinetic energy that is different from the atomization energy of the gas-liquid mixture is applied to the refrigerant liquid, causing a ridge on the liquid surface to reach the refrigerant liquid surface. The frozen particles are rapidly settled below the liquid surface of the refrigerant and completely freeze-cured while the adhesion and floating of the frozen particles are prevented by the action of Ren.
また、この方法を実施するための本発明の微凍結粒の製
造装置は、冷媒液を収容して、冷媒液面上に冷気相領域
を形成させた密閉状の貯溜容器と、気液混合体を貯溜容
器の上部から冷媒液面に向けて微粒状に噴霧する噴霧装
置と、噴霧装置による噴霧エネルギーとは別個の運動エ
ネルギーを冷媒液に与えて、その液面に漣を発生させる
漣発生装置と、を具備するものであり、更に、かかる基
本構成に加えて、冷媒液位を一定に制御する制御装置、
冷媒液中から凍結粒を貯溜容器外に取り出す搬出装置又
は貯溜容器内で発生する冷媒液の蒸発ガスの一部を噴霧
装置に供給して気液混合体又はこれを形成する気体と液
体の少なくとも一方を冷却する冷却装置を具備するもの
である。Further, the apparatus for producing micro-frozen particles of the present invention for carrying out this method is a closed storage container that contains a refrigerant liquid and forms a cold gas phase region on the liquid surface of the refrigerant, and a gas-liquid mixture. A spraying device for spraying fine particles from the upper part of the storage container toward the liquid surface of the refrigerant and a kinetic energy different from the spraying energy by the spraying device to the refrigerant liquid, and a shaving device for generating a ridge on the liquid surface. In addition to the basic configuration, a control device for controlling the refrigerant liquid level at a constant level,
At least a gas-liquid mixture or a gas and a liquid forming the gas-liquid mixture or the gas-liquid mixture by supplying a part of the evaporating gas of the refrigerant liquid generated in the storage container or the carrying-out device that takes out frozen particles from the refrigerant liquid to the outside of the storage container It is provided with a cooling device for cooling one side.
（作用） 所定の圧力を有する水又は水系液体と気体とが混合さ
れ、噴霧手段を構成するノズルにより微粒化されて放出
される。ノズルより放出された混合流体の微粒は、微粒
自体の内部に包含された気体や、微粒相互間に介在する
気体の膨張によつて、さらに細かく分割され且つ飛散さ
れる。(Operation) Water or an aqueous liquid having a predetermined pressure and a gas are mixed, atomized by a nozzle constituting a spraying means, and discharged. The fine particles of the mixed fluid discharged from the nozzle are further finely divided and scattered by the expansion of the gas contained inside the fine particles themselves or the gas interposed between the fine particles.
より細かく分割された水又は水系液体の微粒は、落下中
に表面張力の作用によつて略球形となり、冷媒液面上に
於いて凍結粒となる。このとき、冷媒液面上には冷媒液
の蒸発ガスによる冷気相領域が形成されている（冷媒液
の蒸発は漣を発生させることによって促進される）こと
から、球形化された噴霧粒子は、冷媒液面に到達する前
に或る程度凍結されることになる。そして、この凍結粒
は、冷媒液面に到達し、後述する如く冷媒液中を沈降す
る間において、完全に凍結硬化されることになる。又、
凍結粒の粒径は、気液混合比や混合流体の噴出圧により
調整される。The fine particles of water or water-based liquid that are finely divided become substantially spherical due to the effect of surface tension during dropping, and become frozen particles on the liquid surface of the refrigerant. At this time, since the cold gas phase region due to the vaporized gas of the refrigerant liquid is formed on the liquid surface of the refrigerant (evaporation of the refrigerant liquid is promoted by generating the ripples), the spheroidized spray particles are It will be frozen to some extent before it reaches the coolant level. Then, these frozen particles are completely freeze-cured while reaching the liquid surface of the refrigerant and settling in the liquid of the refrigerant as described later. or,
The particle size of the frozen particles is adjusted by the gas-liquid mixing ratio and the jetting pressure of the mixed fluid.
一方、漣発生手段により冷媒液面には漣が生じており、
液表層部は揺動いた状態になつている。その結果、冷媒
液面上に落下して凍結した凍結粒も揺動かされ、凍結粒
同志が固着して皮膜状態になるのが防止されると共に、
凍結粒の沈降が促進される。On the other hand, the water is generated on the liquid surface of the refrigerant by the water regenerating means,
The liquid surface layer is in a rocking state. As a result, frozen particles that have fallen onto the liquid surface of the refrigerant and are frozen are also shaken, and it is possible to prevent frozen particles from sticking to each other and forming a film state.
Settling of frozen particles is promoted.
又、冷媒液面に漣を発生させることにより所要冷媒液面
が実質的に増加することとなり、その結果、冷媒液貯溜
容器の小形化が可能となる。Further, the required coolant liquid level is substantially increased by generating the ridges on the coolant liquid level, and as a result, the coolant liquid storage container can be downsized.
（実施例） 以下、第１図乃至第９図に基づいて、本発明の実施例を
説明する。(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 9.
第１図は、本発明に係る微凍結粒製造装置のフローシー
トであり、図に於いて１は密閉状の貯溜容器、２は容器
内に収容した冷媒液、３は冷媒液の表層部に運動エネル
ギーを与え、液面に漣を発生させるための漣発生装置、
４は気体と液体とを混合し且つこれを微粒化するための
噴霧装置、５は冷媒液面の制御装置、６は微凍結粒の搬
出装置、７は凍結させる液体とこれに混合する気体との
冷却装置、８は冷媒液の供給装置、９は凍結原液の供給
装置、10は混合用気体の供給装置である。FIG. 1 is a flow sheet of an apparatus for producing frozen particles according to the present invention, in which 1 is a closed storage container, 2 is a refrigerant liquid contained in the container, and 3 is a surface layer portion of the refrigerant liquid. A ripple generator for giving kinetic energy and generating a ripple on the liquid surface,
Reference numeral 4 is a spraying device for mixing a gas and a liquid and atomizing the mixture, 5 is a control device for the liquid level of the refrigerant, 6 is a device for discharging the fine frozen particles, 7 is a liquid to be frozen and a gas to be mixed therewith Is a cooling liquid supply device, 8 is a refrigerant liquid supply device, 9 is a frozen stock liquid supply device, and 10 is a mixed gas supply device.
前記冷媒液貯溜容器１はステンレス鋼（SUS304）製の角
胴形容器であり、下方部は逆四角錐状に形成されてい
る。本実施例に於ける容器１は横幅400mm、縦幅400mm、
全高1200mmの外形寸法を有しており、容器外壁面に真空
断熱（図示省略）が施されている。The refrigerant liquid storage container 1 is a rectangular barrel-shaped container made of stainless steel (SUS304), and the lower part is formed in an inverted quadrangular pyramid shape. The container 1 in this embodiment has a width of 400 mm, a height of 400 mm,
It has a total height of 1200 mm, and the outer wall of the container is vacuum-insulated (not shown).
冷媒液貯溜容器１内には、冷媒液供給装置８から冷媒液
供給管11を通して供給された液体窒素が冷媒液２として
貯溜されており、その液面Ｌは容器底部より約500mmの
高さに設定保持されている。Liquid nitrogen supplied from the refrigerant liquid supply device 8 through the refrigerant liquid supply pipe 11 is stored in the refrigerant liquid storage container 1 as the refrigerant liquid 2, and its liquid level L is about 500 mm higher than the bottom of the container. Settings are retained.
尚、冷媒液面Ｌの制御は液面検知器5a、液面制御盤5b及
び制御弁5c等より構成した液面制御装置５によつて行な
われており、所定の設定液面高さに常時保持されてい
る。The control of the liquid level L of the refrigerant is performed by the liquid level control device 5 composed of the liquid level detector 5a, the liquid level control panel 5b, the control valve 5c, etc., and is constantly maintained at a predetermined set liquid level height. Is held.
又、本実施例に於いては、冷媒液２として液体窒素を使
用しているが、液体空気や液化炭酸ガス等の液化ガスで
あつてもよく、或いは水に不溶性で融点の低い有機溶剤
（例へばヘキサン等）を冷凍機（図示省略）で０℃以下
に冷却したものでもよい。Further, in this embodiment, liquid nitrogen is used as the refrigerant liquid 2, but it may be liquefied gas such as liquid air or liquefied carbon dioxide gas, or an organic solvent insoluble in water and having a low melting point ( For example, hexane or the like) may be cooled to 0 ° C. or lower by a refrigerator (not shown).
前記漣発生装置３は、冷媒液に噴霧装置４による噴霧エ
ネルギーとは別個の運動エネルギーを与えて液面に漣を
発生させるものであり、散気管3a、散気調整弁3b、流量
計3c等より構成されている。The ripple generator 3 gives kinetic energy different from the spraying energy of the sprayer 4 to the refrigerant liquid to generate a ripple on the liquid surface. The diffuser pipe 3a, the diffuser adjusting valve 3b, the flow meter 3c, etc. It is composed of
散気管3aは、第２図及び第３図に示す如く、四角形に形
成されており、液面下40〜150mmの位置に水平に配設さ
れている。尚、散気管3aの深さが深すぎると、ガスが冷
却されて後述する如き気泡流による作用効果が減少する
と共に、冷媒液並びに散気用ガス（冷媒ガス）の消費量
が増大する。従つて、散気管3aの深さは100mm以内が望
ましい。As shown in FIGS. 2 and 3, the air diffuser 3a is formed in a quadrangular shape and is horizontally arranged at a position 40 to 150 mm below the liquid surface. If the diffuser pipe 3a is too deep, the gas is cooled and the effect of the bubble flow as described below is reduced, and the consumption of the refrigerant liquid and the diffuser gas (refrigerant gas) is increased. Therefore, it is desirable that the depth of the air diffusing tube 3a be 100 mm or less.
散気管3aには50〜100mmピツチでガス噴出孔3dが、中央
部へ向けて略水平に開孔されており、冷媒液供給装置８
の気相部から冷媒ガス供給管12、調整弁3bを通して冷媒
ガスが供給され、冷媒液内へ噴出されている。The air diffuser 3a is provided with a gas ejection hole 3d with a pitch of 50 to 100 mm, which is opened substantially horizontally toward the central portion.
The refrigerant gas is supplied from the gas phase portion of the refrigerant gas through the refrigerant gas supply pipe 12 and the adjusting valve 3b and is ejected into the refrigerant liquid.
前記、散気管3aからの冷媒ガスの噴出流量は、200〜400
l/m2,min位いが最適であり、これにより、第５図に示す
如く冷媒液の表層部に気泡13の上昇流が生じると共に、
上昇した気泡13は液面近傍に於いて破裂する。これ等の
気泡流によつて、冷媒液表層部に与えられる運動エネル
ギーにより、冷媒液表面に波高が５〜20mmの漣Ｗが発生
すると共に、後述する如く冷媒液内へ落下して連結した
凍結粒Ｉが揺動され、凍結粒同士の固着が防止される。The flow rate of the refrigerant gas ejected from the air diffuser 3a is 200 to 400.
l / m 2 , min is most suitable, and as a result, as shown in FIG. 5, an upward flow of bubbles 13 is generated in the surface layer of the refrigerant liquid, and
The rising bubbles 13 burst near the liquid surface. Due to the kinetic energy given to the surface layer of the refrigerant liquid by these bubbly flows, a ripple W with a wave height of 5 to 20 mm is generated on the surface of the refrigerant liquid, and the frozen water drops and is connected to the refrigerant liquid as described later. The grains I are swung, and the frozen grains are prevented from sticking to each other.
又、気泡流の存在により、冷媒液表層部の液密度が低下
することになり、凍結粒との密度差が増加して、その沈
降が促進されることになる。In addition, the presence of the bubbly flow lowers the liquid density of the refrigerant liquid surface layer portion, increases the density difference from the frozen particles, and promotes the sedimentation thereof.
尚、前記漣の波高は、５〜10mm程度が最適であり、波高
が20mm以上になると、逆に冷媒液表層部の攪拌作用によ
つて凍結粒の沈降が阻害されることになる。Incidentally, the wave height of the Ren is optimally about 5 to 10 mm, and when the wave height is 20 mm or more, conversely, the stirring action of the refrigerant liquid surface layer hinders the sedimentation of frozen particles.
本実施例に於いては漣発生装置３として散気管3aを使用
し、冷媒液供給装置８の気相部から冷媒ガスを供給する
ようにしているが、冷媒ガスの貯蔵設備を別途に設け、
ここから散気管3aへ冷媒ガスを供給するようにしてもよ
い。又、露点の低いガスやCO2を含有するガス以外であ
れば、冷媒ガスに代えて例えば脱CO2処理を施した空気
等を使用することも可能である。In the present embodiment, the air diffuser 3a is used as the Ren generator 3, and the refrigerant gas is supplied from the gas phase portion of the refrigerant liquid supply device 8. However, a storage facility for the refrigerant gas is separately provided,
Refrigerant gas may be supplied from here to the diffuser pipe 3a. In addition to the gas having a low dew point or the gas containing CO 2 , it is possible to use, for example, de-CO 2 treated air instead of the refrigerant gas.
前記漣発生装置３としては、この他に、下記の如き構成
の装置の使用が可能である。In addition to this, as the Ren generating device 3, it is possible to use a device having the following configuration.
（ａ）散液管型発生装置 冷媒液の液面下に、小孔を形成した散液管を配設し、該
散液管より冷媒液供給装置８からの冷媒液を噴出する。
尚、この場合には、第１図に於ける冷媒液供給管11は不
要となり、これに替えて冷媒液戻り管を設け、冷媒液面
を一定に保持するようにする。(A) Dispersion pipe type generator A dispersion pipe having small holes is arranged below the liquid surface of the refrigerant liquid, and the refrigerant liquid is ejected from the refrigerant liquid supply device 8 through the dispersion pipe.
In this case, the refrigerant liquid supply pipe 11 shown in FIG. 1 is unnecessary, and instead of this, a refrigerant liquid return pipe is provided to keep the refrigerant liquid surface constant.
（ｂ）発振子型漣発生装置 第４図（Ａ）及び第４図（Ｂ）に示す如く、冷媒液貯溜
容器１の内部に、一定の速度で揺動、往復動若しくは回
転運動をする発振子20を配設し、容器１の外部に設置し
たモータ21等により前記発振子を作動させ、冷媒液２に
機械的な振動エネルギーを与えて冷媒液面Ｌに漣を発生
させる。(B) Oscillator-type sword generator As shown in FIGS. 4 (A) and 4 (B), oscillation that oscillates, reciprocates or rotates at a constant speed inside the refrigerant liquid storage container 1. A child 20 is provided, and the oscillator is operated by a motor 21 or the like installed outside the container 1 to apply mechanical vibration energy to the refrigerant liquid 2 to generate a ripple on the liquid surface L of the refrigerant.
（ｃ）振動子型漣発生装置 第４図（Ｃ）に示す如く、冷媒液貯溜容器１の外部又は
内部に所望の周波数の振動力を発する音波振動子22を設
け、振動子を介して音波エネルギーを冷媒液２に与え
て、冷媒液面Ｌに漣を発生させる。(C) Vibrator-type Resonator As shown in FIG. 4 (C), a sound wave oscillator 22 for generating an oscillating force of a desired frequency is provided outside or inside the refrigerant liquid storage container 1, and a sound wave is generated through the oscillator. Energy is applied to the coolant liquid 2 to generate a ridge on the coolant liquid surface L.
（ｄ）噴射型漣発生装置 冷媒液面上に噴射管を配設し、該噴射管より冷媒ガス、
脱CO2処理をした空気等の露点の比較的高いガスや冷媒
液等を液面へ向けて噴射し、冷媒液に運動エネルギーを
与えてその液面に漣を発生させる。(D) Jet-type Ren generator The injection pipe is arranged on the liquid surface of the refrigerant, and the refrigerant gas is supplied from the injection pipe.
A gas with a relatively high dew point such as air that has undergone de-CO 2 treatment or a refrigerant liquid is injected toward the liquid surface to give kinetic energy to the refrigerant liquid to generate a ridge on the liquid surface.
（ｅ）震盪形漣発生装置 冷媒液貯溜容器１を震動台22等の上に設置し、貯溜容器
１自体にカム23及びスプリング24等を介して機械的な震
盪力を与えることによつて容器内部の冷媒液２に震盪作
用を与え、液面Ｌに漣を発生させる。(E) Shaking Ridge Generator The refrigerant liquid storage container 1 is installed on a shaking table 22 or the like, and a mechanical shaking force is applied to the storage container 1 itself via a cam 23, a spring 24 or the like to form the container. A shaking action is given to the refrigerant liquid 2 inside, and a ripple is generated on the liquid surface L.
前記噴霧装置４は、凍結粒にするべき凍結原液と気体と
を混合し、該気液混合体内の凍結原液を微細粒化するも
のである。第６図はその一例を示すものであり、本体4a
の後方に液入口4bと気体入口4cが形成されており、両通
路4b′と4c′とを合体せしめてスロート部4dを構成し、
ここで液体と気体とが混合される。スロート部4dを出た
気液混合体は、更に混合室4e内へ導かれ、ここで案内羽
根4fにより攪拌並びに分散された後、ノズル孔4gから噴
出される。The spraying device 4 mixes a frozen stock solution to be frozen particles and a gas to atomize the frozen stock solution in the gas-liquid mixture. FIG. 6 shows an example of the main body 4a.
A liquid inlet 4b and a gas inlet 4c are formed in the rear of the, and both passages 4b 'and 4c' are united to form a throat portion 4d,
Here, the liquid and the gas are mixed. The gas-liquid mixture exiting the throat portion 4d is further guided into the mixing chamber 4e, where it is stirred and dispersed by the guide vanes 4f, and then jetted from the nozzle hole 4g.
尚、噴霧装置４としては、気液の混合機構と気液混合体
を微粒化して噴出する機構とを備えたものであれば、如
何なる構造や形態のものであつてもよいことは勿論であ
る。The spraying device 4 may have any structure and form as long as it has a gas-liquid mixing mechanism and a mechanism for atomizing and spraying the gas-liquid mixture. .
当該噴霧装置４の液入口4bへは、微凍結粒にすべき液体
（例えば水、菓汁、薬品等）が凍結原液供給装置９から
ポンプ14、減圧弁15、制御弁16及び後述する冷却装置７
等を介して供給されており、その供給圧は1.0〜2.0Kg/c
m2ｇに選定されている。又、噴霧装置４の気体入口4cへ
は、混合用気体供給装置10から液体に比較的溶け難い気
体が減圧弁17、流量計18、制御弁19、冷却装置７を通し
て、1.0〜2.0Kg/cm2ｇの加圧力でもつて供給されてい
る。A liquid (for example, water, confection, juice, chemicals, etc.) to be made into finely-frozen particles is supplied to the liquid inlet 4b of the spraying device 4 from the freezing stock solution supply device 9, the pump 14, the pressure reducing valve 15, the control valve 16, and the cooling device 7 described later.
The pressure is 1.0 to 2.0 Kg / c.
Selected for m 2 g. Further, to the gas inlet 4c of the spraying device 4, a gas that is relatively insoluble in the liquid from the mixing gas supply device 10 is passed through the pressure reducing valve 17, the flow meter 18, the control valve 19, and the cooling device 7 to 1.0 to 2.0 kg / cm. It is also supplied with a pressing force of 2 g.
尚、本実施例に於いては、液体として水が、また気体と
して冷媒ガス（窒素ガス）が夫々1.0Kg/cm2ｇの加圧力
で供給されている。又、本実施例では混合用気体供給装
置10を別に設けているが、冷媒液供給装置８の気相部か
ら混合用気体を噴霧装置４へ供給する様にしてもよい。In this embodiment, water is supplied as a liquid, and a refrigerant gas (nitrogen gas) is supplied as a gas at a pressure of 1.0 kg / cm 2 g. Although the mixing gas supply device 10 is separately provided in this embodiment, the mixing gas may be supplied to the spraying device 4 from the gas phase portion of the refrigerant liquid supply device 8.
前記液体と気体との混合比（液体l/H÷気体Nl/min）は
0.5〜1.5に選定するのが最適であり、混合比を変更する
ことにより、気液供給圧が一定の場合でも、凍結粒の粒
径を最少1/10の径まで小さくすることができる。又、ノ
ズル孔4gの径は小さいほど好都合であるが、加工の困難
性や詰まりの発生等の問題があるため、0.3〜1.0mmφ程
度の径が望ましい。The mixing ratio of the liquid and gas (liquid l / H ÷ gas Nl / min) is
It is optimal to select 0.5 to 1.5, and by changing the mixing ratio, the particle size of frozen particles can be reduced to a minimum of 1/10 even when the gas-liquid supply pressure is constant. Further, the smaller the diameter of the nozzle hole 4g, the more convenient it is, but since there are problems such as processing difficulty and occurrence of clogging, a diameter of about 0.3 to 1.0 mmφ is desirable.
前記噴霧装置４のストロー部4d及び混合室4e内で形成さ
れた気液混合体は、案内羽根4fによつて外周方向へ均等
に分散され、ノズル4gより上方より冷媒液面へ向けて噴
出される。この時、混合された気体は、ノズル4gを通過
する際に微粒化された液体微粒の内部と、液体微粒相互
の間に介存することになり、液体微粒内に含まれた気体
は膨張して液体微粒を更に分割して細分化し、これを飛
散せしめる。又、液体微粒相互間に介存する気泡は液体
微粒をより強力に飛散せしめることになり、飛散時の微
粒相互の衝突により、これを更に細微粒にする作用をす
る。The gas-liquid mixture formed in the straw portion 4d and the mixing chamber 4e of the spraying device 4 is evenly dispersed in the outer peripheral direction by the guide vanes 4f, and jetted from above the nozzle 4g toward the refrigerant liquid surface. It At this time, the mixed gas will be present between the inside of the liquid microparticles atomized when passing through the nozzle 4g and between the liquid microparticles, and the gas contained in the liquid microparticles will expand. Liquid fine particles are further divided and subdivided, and this is scattered. Further, the bubbles existing between the liquid fine particles cause the liquid fine particles to be more strongly scattered, and the collision of the fine particles during the scattering causes the liquid fine particles to be further finely divided.
一方、噴霧装置４から噴出された液体微粒は、容器１内
を落下中に表面張力によつて球形となり、冷媒液面上へ
落下する。而して、噴霧装置４から冷媒液面までの落下
距離及び容器空間部の温度は、凍結微粒の粒径並びに形
態に大きな影響を及ぼすものであり、落下距離を500〜1
500mm、容器空間部温度つまり液面上に冷媒液の蒸発ガ
スによって形成される冷気相領域の温度を−20℃以下と
するのが望ましいことが、実験により確認されている。On the other hand, the liquid fine particles ejected from the spraying device 4 become spherical due to the surface tension while falling in the container 1 and drop onto the liquid surface of the refrigerant. The drop distance from the spraying device 4 to the liquid surface of the refrigerant and the temperature of the container space have a great influence on the particle size and morphology of the frozen fine particles.
Experiments have confirmed that it is desirable that the temperature of the space in the container is 500 mm, that is, the temperature of the cold gas phase region formed by the evaporated gas of the refrigerant liquid on the liquid surface is −20 ° C. or lower.
すなわち、落下距離，冷気相領域温度をこのようにして
おくことにより、噴霧装置４から噴霧された粒子が、液
面に到達する前に充分に球形化され且つ或る程度凍結さ
れることになり、球形態を維持された状態で液面に到達
し且つ液面に到達した粒子同士が互いに接着することが
ない。したがって、漣の作用とも相俟って、冷媒液との
直接的な熱交換によって、いびつでなく球形化された微
細な凍結粒が得られるのである。That is, by setting the fall distance and the temperature of the cold gas phase region in this way, the particles sprayed from the spraying device 4 are sufficiently spherical and frozen to some extent before reaching the liquid surface. The particles that have reached the liquid surface while maintaining the spherical shape do not adhere to each other. Therefore, in combination with the action of Ren, direct heat exchange with the refrigerant liquid produces fine frozen particles which are spherical rather than distorted.
前記冷媒液面制御装置５は、液面Ｌと噴霧装置４間の距
離を略一定に保持する機能を果し、公知の液面検知器5
a、液面制御器5b及び冷媒液供給管11に介設した制御弁5
c等より構成されている。The refrigerant liquid level control device 5 has a function of keeping the distance between the liquid level L and the spraying device 4 substantially constant, and the known liquid level detector 5
a, a liquid level controller 5b and a control valve 5 provided in the refrigerant liquid supply pipe 11
It is composed of c etc.
尚、冷媒液の液面は漣によつて常時変動するため、液面
の制御は、漣の波高部が所定のレベル範囲内に位置する
ように制御されている。Since the liquid level of the refrigerant liquid constantly fluctuates due to the ridge, the liquid level is controlled so that the wave height portion of the ridge is located within a predetermined level range.
前記冷却装置７は、容器１内へ噴霧する凍結原液と混合
用気体の温度を下げ、冷媒液の消費量の低減を図るもの
である。該冷却装置７は液体冷却器7aと気体冷却器7bと
から構成されており、貯溜容器１内の冷媒ガスを導入し
て液体並びに気体の冷却を行なう構成としている。The cooling device 7 lowers the temperatures of the frozen stock solution and the mixed gas sprayed into the container 1 to reduce the consumption of the refrigerant liquid. The cooling device 7 is composed of a liquid cooler 7a and a gas cooler 7b, and is configured to introduce the refrigerant gas in the storage container 1 to cool the liquid and the gas.
尚、本実施例に於いては、液体及び気体を夫々個別的に
冷却し、冷却後に噴霧装置４により、混合・微粒化する
構成としているが、気液混合部と微粒化部とを分離し、
先きに気液混合を行なつてから、次に該混合体を冷却
し、その後これを微粒化する構成としてもよい。In the present embodiment, the liquid and the gas are individually cooled, and after cooling, they are mixed and atomized by the spraying device 4, but the gas-liquid mixing section and the atomizing section are separated. ,
A configuration may be adopted in which gas-liquid mixing is performed first, then the mixture is cooled, and then this is atomized.
噴霧装置４から噴出された凍結原液の微粒Ｋは冷媒液面
上へ落下して凍結並びに硬化され、前記冷媒液面上の漣
の作用により、凍結微粒子同志が固着して皮膜状になる
のが防止され、独立した状態で順次沈降する。容器底部
へ沈降した凍結微粒は、搬出装置６により外部へ搬出さ
れて行く。The fine particles K of the frozen stock solution ejected from the spraying device 4 fall onto the liquid surface of the refrigerant to be frozen and hardened, and due to the action of the ridges on the liquid surface of the refrigerant, the frozen fine particles stick to each other to form a film. It is prevented and settles sequentially in an independent state. The frozen fine particles settled to the bottom of the container are carried out to the outside by the carry-out device 6.
前記搬出装置６は第７図に示す如く容器１内へ挿入した
ガイドパイプ6aと、ガイドパイプ内に回転自在に配設し
たスクリユー回転体6bと、駆動用モータ6c等から構成さ
れており、容器底部へ沈降した凍結微粒Ｉを連続的に搬
出する。As shown in FIG. 7, the carry-out device 6 is composed of a guide pipe 6a inserted into the container 1, a screw rotating body 6b rotatably arranged in the guide pipe, a drive motor 6c, and the like. The frozen fine particles I that have settled to the bottom are continuously discharged.
尚、本実施例ではスクリユーコンベア式の搬出装置６を
使用しているが、ベルトコンベア式の搬出装置やその他
の形式の搬送装置であつてもよいことは勿論である。In this embodiment, the squeeze conveyor type unloading device 6 is used, but it goes without saying that a belt conveyor type unloading device or another type of conveying device may be used.
（試験結果） 次に、本発明による微凍結粒の製造試験の結果について
説明する。(Test Result) Next, the result of the production test of the micro-frozen particles according to the present invention will be described.
冷媒液貯溜器１として、断面が400mm×400mm,四角胴部
の高さが、900mmであり、その下方に高さ300mmの逆四角
錐部を備えた形態の容器を形成し、冷媒液２として液体
窒素を容器底より500mmの高さにまで入れた。即ち、容
器天井より冷媒液面Ｌまでの距離を700mmとした。As the refrigerant liquid reservoir 1, a container having a cross section of 400 mm × 400 mm, a height of a quadrangular body portion of 900 mm, and an inverted quadrangular pyramid portion having a height of 300 mm is formed below the container to form a refrigerant liquid 2. Liquid nitrogen was filled up to a height of 500 mm from the bottom of the container. That is, the distance from the container ceiling to the liquid surface L of the refrigerant was 700 mm.
又、液面下50mmの位置に四角状の散気管（350mm×350m
m）を水平に配設し、該散気管から容器中心部に向け
て、液体窒素供給タンクの気相部からの窒素ガスを300l
/m2,minの割合で供給し、液体窒素の外表面に波高の平
均値が8mmの漣を発生させた。In addition, at the position 50 mm below the liquid surface, a square air diffuser (350 mm x 350 m
m) is installed horizontally, and 300 l of nitrogen gas from the gas phase part of the liquid nitrogen supply tank is directed from the air diffuser toward the center of the container.
It was supplied at a rate of / m 2 , min, and a ridge with an average wave height of 8 mm was generated on the outer surface of liquid nitrogen.
一方、凍結原液を水、混合用気体を高圧容器内に貯溜し
た窒素ガス（25℃）として、両者を夫々1.2Kg/cm2Ｇの
圧力で混合させ、窒素ガス流量を4.5Nl/minとして、0.5
mmφのノズル孔を有する噴霧装置（液体窒素の液面Ｌよ
り約700mm上方に配設されている）から、6l/Hの割合で
混合流体を液面へ向けて噴霧した。また、この時の容器
内上部空間の最高温度は−20℃であつた。On the other hand, the frozen stock solution is water, and the mixed gas is nitrogen gas (25 ° C.) stored in a high-pressure container, and both are mixed at a pressure of 1.2 kg / cm 2 G, and the nitrogen gas flow rate is 4.5 Nl / min. 0.5
The mixed fluid was sprayed toward the liquid surface at a rate of 6 l / H from a spraying device having a nozzle hole of mmφ (disposed about 700 mm above the liquid surface L of the liquid nitrogen). At this time, the maximum temperature of the upper space inside the container was -20 ° C.
更に、容器内の液体窒素の液面を一定に保持するため
に、容器内へ供給した液体窒素の流量は20l/Hであり、
且つ冷却装置により水及び混合用窒素ガスを冷却した後
の排出窒素ガス（即ち容器内から導出した気化ガス）は
20×0.65Nm3/Hrであつた。Further, in order to keep the liquid surface of the liquid nitrogen in the container constant, the flow rate of the liquid nitrogen supplied into the container is 20 l / H,
And the discharged nitrogen gas (that is, the vaporized gas discharged from the container) after cooling the water and the mixing nitrogen gas with the cooling device is
It was 20 × 0.65 Nm 3 / Hr.
前述の如き条件下に於いて、約10分間混合流体（水＋窒
素）を連続的に噴射したとき、約１の微凍結粒（微凍
結氷粒）が得られ、その平均粒径は70〜80μｍであつ
た。又、微凍結粒は第９図の図面代用の150倍顕微鏡写
真に示す如く、一つ一つが完全に独立した粒子状となつ
ている。これに対して、混合流体とせず且つ漣を立てな
い場合には、微凍結粒が第10図の図面代用の150倍顕微
鏡写真に示す如く皮膜片状となり両凍結微粒の形態には
顕著な差異が見られる。Under the above-mentioned conditions, when the mixed fluid (water + nitrogen) is continuously jetted for about 10 minutes, about 1 fine frozen particles (fine frozen ice particles) are obtained, and the average particle size is 70 ~ It was 80 μm. In addition, as shown in the micrograph of FIG. 9, which is used as a substitute for a drawing and is a 150-fold micrograph, each of the micro-frozen particles is in the form of completely independent particles. On the other hand, when the mixed fluid is not used and the ribs are not erected, the microfrozen particles become a film-like piece as shown in the 150x micrograph of FIG. Can be seen.
一方、混合流体の吐出圧力及び混合用窒素ガスの流量を
変化せしめた場合の微凍結粒の粒径の変化は、第８図の
様になつた。但し、第８図に於いて、Ａは混合流体の吐
出圧が1Kg/cm2g,Bは1.5Kg/cm2g,Cは2Kg/cm2ｇの場合で
ある。尚、水単独で噴霧放出した場合の粒径は、平均す
ると吐出圧1Kg/cm2ｇのとき約400μm,1.5Kg/cm2ｇのと
き320μm,2Kg/cm2ｇのとき280μｍに夫々なる。On the other hand, when the discharge pressure of the mixed fluid and the flow rate of the nitrogen gas for mixing were changed, the change in the particle size of the fine frozen particles was as shown in FIG. However, in the FIG. 8, A is the discharge pressure of the mixed fluid is 1Kg / cm 2 g, B is 1.5Kg / cm 2 g, C is the case of 2Kg / cm 2 g. The particle size in the case of spray released with water alone, mean a discharge pressure 1Kg / cm 2 g to about 400μm when, when 1.5Kg / cm 2 g 320μm, made respectively to 280μm when 2Kg / cm 2 g.
（発明の効果） 本発明は上述の通り、容器内の冷媒液に運動エネルギー
を与えて、適当な波高の漣を冷媒液面に発生させると共
に、凍結原液と気体との混合流体を微粒子化して冷媒液
の上方より液面に向けて噴出し、且つ容器内の気化ガス
を利用して凍結原液と混合用気体の冷却を行なうように
しているため、下記の如く多くの優れた効用が奏され
る。(Effects of the invention) As described above, the present invention applies kinetic energy to the refrigerant liquid in the container to generate a ripple with an appropriate wave height on the refrigerant liquid surface, and atomizes the mixed fluid of the frozen stock solution and the gas. Since the refrigerant is jetted from above the liquid surface toward the liquid surface and the vaporized gas in the container is used to cool the frozen stock solution and the mixed gas, many excellent effects are achieved as follows. It
（１）冷媒液面に漣が立つているため、液面上へ落下し
て凍結した微粒子が相互に固着して皮膜状に成長するこ
とが防止されると共に、凍結微粒の沈降が促進される。
その結果、個々の凍結粒が夫々独立した状態の所謂“さ
らさら”した微凍結粒を得ることができる。(1) Since the liquid surface of the refrigerant is ridged, it is possible to prevent the fine particles that have fallen onto the liquid surface and are frozen from sticking to each other and growing into a film, and at the same time, the settling of the frozen fine particles is promoted. .
As a result, it is possible to obtain so-called "free-flowing" fine frozen grains in which the individual frozen grains are independent of each other.
（２）冷媒液面に漣を立てることにより、降下した液体
微粒の凍結に必要とする液表面積が実質的に増加するこ
とになる。その結果、漣を立てない場合に比較して、冷
媒液貯溜容器の断面積即ち容器寸法の小形化を図り得
る。(2) By raising the ribs on the liquid surface of the refrigerant, the liquid surface area required for freezing the lowered liquid fine particles is substantially increased. As a result, the cross-sectional area of the refrigerant liquid storage container, that is, the size of the container, can be reduced as compared with the case where the rib is not raised.
（３）凍結原液を一層細かく微粒化できると共に、これ
によつて、従来技術では不可能であつた径が50μｍ以下
の、しかもさらさらとした状態の凍結微粒の製造が可能
となる。(3) The frozen stock solution can be made into finer particles, which makes it possible to produce frozen particles having a diameter of 50 μm or less, which is not possible with the prior art, and in a free-flowing state.
（４）混合流体の混合比を調整することにより、粒径を
10:1位いの割合の広範囲で任意に調整することができ、
30〜300μｍの粒径の微凍結粒を高能率で製造できる。
その結果、従前の製氷装置の如く、微凍結粒の粒径調整
のためにノズルを取替える必要も無く、作業能率が大幅
に向上する。(4) By adjusting the mixing ratio of the mixed fluid,
It can be adjusted arbitrarily in a wide range of 10: 1 place,
Frozen frozen particles with a particle size of 30 to 300 μm can be produced with high efficiency.
As a result, unlike the conventional ice making device, it is not necessary to replace the nozzle for adjusting the particle size of the fine frozen particles, and the working efficiency is greatly improved.
本発明は上述の通り優れた実用的効用を有するものであ
る。The present invention has excellent practical utility as described above.
第１図は本発明の一実施例に係る微凍結粒製造装置のフ
ローシートである。 第２図は散気管3aの配設状態を示す平面図であり、第３
図はその側面図である。 第４図（Ａ）、第４図（Ｂ）、第４図（Ｃ）及び第４図
（Ｄ）は、漣発生装置のその他の実施例を示すものであ
る。 第５図は散気管からの気泡流の作用説明図である。 第６図は、噴霧装置４の一例を示す縦断面図である。 第７図は、微凍結粒の搬出装置の一例を示す断面図であ
る。 第８図は、混合用気体（窒素ガス）の流量と微凍結粒の
粒径の関係を示す線図である。 第９図は、本発明により製造した微凍結粒の顕微鏡写真
（150倍）であり、第10図は、冷媒液面に漣を立てず且
つ凍結原液をそのまま噴霧した場合の微凍結粒の顕微鏡
写真（150倍）である。 第11図は、従前の微凍結粒の製造装置の概要図である。 第12図は、従前の微凍結粒製造装置に於ける微凍粒皮膜
の形成状態を示す説明図である。 Ｗ…漣、３…漣発生装置 Ｉ…微凍結粒、４…噴霧装置 Ｋ…凍結原液の微粒、５…冷媒液面制御装置 Ｌ…冷媒液面、６…凍結微粒搬出装置 １…冷媒液貯溜容器、７…冷却装置 ２…冷媒液、８…冷媒液供給装置 ９…凍結原液供給装置、12…冷媒ガス供給管 10…混合用気体供給装置、13…気泡 11…冷媒液供給管FIG. 1 is a flow sheet of an apparatus for producing frozen particles according to an embodiment of the present invention. FIG. 2 is a plan view showing a disposition state of the air diffuser 3a.
The figure is a side view thereof. FIG. 4 (A), FIG. 4 (B), FIG. 4 (C), and FIG. 4 (D) show another embodiment of the ripple generating device. FIG. 5 is an explanatory view of the action of the bubble flow from the air diffuser. FIG. 6 is a vertical sectional view showing an example of the spraying device 4. FIG. 7 is a cross-sectional view showing an example of a device for carrying out frozen particles. FIG. 8 is a diagram showing the relationship between the flow rate of the mixed gas (nitrogen gas) and the particle size of the frozen particles. FIG. 9 is a photomicrograph (150 times) of the micro-frozen particles produced according to the present invention, and FIG. 10 is a micro-photograph of micro-frozen particles in the case where the freezing stock solution is sprayed as it is without raising the ribs on the refrigerant liquid surface. It is a photograph (150 times). FIG. 11 is a schematic view of a conventional apparatus for producing frozen fine particles. FIG. 12 is an explanatory view showing a state of formation of a fine frozen particle film in a conventional apparatus for producing frozen particles. W ... Ren, 3 ... Ren generator I ... Fine frozen particles, 4 ... Spraying device K ... Fine particles of frozen stock solution, 5 ... Refrigerant liquid level control device L ... Refrigerant liquid level, 6 ... Frozen fine particle discharge device 1 ... Refrigerant liquid reservoir Container, 7 ... Cooling device 2 ... Refrigerant liquid, 8 ... Refrigerant liquid supply device 9 ... Freezing stock solution supply device, 12 ... Refrigerant gas supply pipe 10 ... Mixing gas supply device, 13 ... Bubble 11 ... Refrigerant liquid supply pipe
Claims (27)
して、冷媒液面上に冷気相領域を形成させておき、貯溜
容器の上部から冷媒液面に向けて気液混合体を微粒状に
噴霧させることによって、噴霧粒子が、冷気相領域を下
降して冷媒液面に到達する間において、噴霧粒子が表面
張力により球形化されつつ徐々に凍結されるようにする
と共に、気液混合体の噴霧エネルギーとは別個の運動エ
ネルギーを冷媒液に与えて、その液面に漣を発生させる
ことによって、冷媒液面に到達した凍結粒が、漣の作用
により凍結粒子同士の接着及び浮遊を阻止されつつ、冷
媒液面下に速やかに沈降されて、完全に凍結硬化される
ようにしたことを特徴とする微凍結粒の製造方法。1. A refrigerant liquid is contained in a lower portion of a closed storage container to form a cold gas phase region on the liquid surface of the refrigerant, and a gas-liquid mixture is directed from the upper portion of the storage container toward the liquid surface of the refrigerant. By spraying fine particles, while the spray particles descend in the cold gas phase region and reach the liquid surface of the refrigerant, the spray particles are gradually spherical while being spherical due to the surface tension, and the gas-liquid By giving kinetic energy, which is different from the spray energy of the mixture, to the refrigerant liquid and generating ridges on the liquid surface, the frozen particles that have reached the liquid surface of the refrigerant adhere and float between the frozen particles due to the action of the ren. The method for producing finely frozen particles is characterized in that it is settled immediately below the liquid surface of the refrigerant to be completely freeze-cured while being prevented.
ことにより、冷媒液に運動エネルギーを与えるようにし
た特許請求の範囲第１項に記載の微凍結粒の製造方法。2. The method for producing fine frozen particles according to claim 1, wherein kinetic energy is applied to the refrigerant liquid by ejecting gas or liquid into the refrigerant liquid.
せることにより、冷媒液に運動エネルギーを与えるよう
にした特許請求の範囲第１項に記載の微凍結粒の製造方
法。3. The method for producing fine frozen particles according to claim 1, wherein kinetic energy is applied to the refrigerant liquid by vibrating a vibrator inside or outside the storage container.
り、冷媒液に運動エネルギーを与えるようにした特許請
求の範囲第１項に記載の微凍結粒の製造方法。4. The method for producing fine frozen particles according to claim 1, wherein kinetic energy is applied to the refrigerant liquid by oscillating an oscillator in the refrigerant liquid.
体を冷媒液面に向けて噴出させることにより、冷媒液に
運動エネルギーを与えるようにした特許請求の範囲第１
項に記載の微凍結粒の製造方法。5. A kinetic energy is applied to the refrigerant liquid by ejecting a gas or a liquid separate from the gas-liquid mixture toward the liquid surface of the refrigerant.
Item 2. A method for producing fine frozen particles according to item.
媒液に運動エネルギーを与えるようにした特許請求の範
囲第１項に記載の微凍結粒の製造方法。6. The method for producing fine frozen particles according to claim 1, wherein kinetic energy is applied to the refrigerant liquid by applying a shaking force to the container itself.
から深さ10cm以内の冷媒液層部を揺動かすようにした特
許請求の範囲第１項から第６項までの何れか一項に記載
の微凍結粒の製造方法。7. The refrigerant liquid layer portion within a depth of 10 cm from the liquid surface is shaken by giving kinetic energy, according to any one of claims 1 to 6. Method for producing fine frozen particles.
mmとした特許請求の範囲第１項から第６項までの何れか
一項に記載の微凍結粒の製造方法。8. The height of the ridges generated on the surface of the coolant is 5 to 10
The method for producing micro-frozen particles according to any one of claims 1 to 6, wherein the method is mm.
るようにした特許請求の範囲第１項から第６項までの何
れか一項に記載の微凍結粒の製造方法。9. The method for producing fine frozen particles according to any one of claims 1 to 6, wherein liquid nitrogen or liquid air is used as the refrigerant liquid.
た特許請求の範囲第１項から第６項までの何れか一項に
記載の微凍結粒の製造方法。10. The method for producing fine frozen particles according to any one of claims 1 to 6, wherein an organic solvent is used as the refrigerant liquid.
液、薬液の何れか一つ又は二以上の混合体とした特許請
求の範囲第１項から第10項までの何れか一項に記載の微
凍結粒の製造方法。11. The liquid forming the gas-liquid mixture is any one of water, fruit juice, and drug solution, or a mixture of two or more thereof, in any one of claims 1 to 10. The method for producing fine frozen particles according to.
び空気の何れか一方又は両者の混合体とした特許請求の
範囲第１項から第10項までの何れか一項に記載の微凍結
粒の製造方法。12. The fine gas according to any one of claims 1 to 10, wherein the gas forming the gas-liquid mixture is one of nitrogen gas and air or a mixture of both. Frozen grain manufacturing method.
囲第11項に記載の微凍結粒の製造方法。13. The method for producing fine frozen particles according to claim 11, wherein the liquid is pre-cooled.
囲第12項に記載の微凍結粒の製造方法。14. The method for producing fine frozen particles according to claim 12, wherein the gas is precooled.
−20℃以下に保持するようにした特許請求の範囲第１項
から第14項までの何れか一項に記載の微凍結粒の製造方
法。15. The production of finely-frozen particles according to any one of claims 1 to 14, wherein the temperature in the cold gas phase region in the storage container is kept at -20 ° C or lower. Method.
領域を形成させた密閉状の貯溜容器と、気液混合体を貯
溜容器の上部から冷媒液面に向けて微粒状に噴霧する噴
霧装置と、噴霧装置による噴霧エネルギーとは別個の運
動エネルギーを冷媒液に与えて、その液面に漣を発生さ
せる漣発生装置と、を具備することを特徴とする微凍結
粒の製造装置。16. A hermetically-sealed storage container containing a refrigerant liquid and having a cold gas phase region formed on the liquid surface of the refrigerant, and a gas-liquid mixture formed into fine particles from the upper part of the storage container toward the liquid surface of the refrigerant. Production of micro-frozen particles, characterized by comprising: a spraying device for spraying, and a ridge generating device for giving a kinetic energy different from the spraying energy by the spraying device to the refrigerant liquid to generate ridges on the liquid surface. apparatus.
る散気管とした特許請求の範囲第16項に記載の微凍結粒
の製造装置。17. The apparatus for producing finely-frozen particles according to claim 16, wherein the Ren generator is an air diffuser for ejecting gas into the refrigerant liquid.
配設した振動子とした特許請求の範囲第16項に記載の微
凍結粒の製造装置。18. The apparatus for producing fine frozen particles according to claim 16, wherein the Ren generator is a vibrator disposed inside or outside a storage container.
とした特許請求の範囲第16項に記載の微凍結粒の製造装
置。19. The apparatus for producing fine frozen particles according to claim 16, wherein the Ren generator is an oscillator immersed in a refrigerant liquid.
る散気管とした特許請求の範囲第16項に記載の微凍結粒
の製造装置。20. The apparatus for producing fine frozen particles according to claim 16, wherein the Ren generator is an air diffuser for ejecting gas onto the liquid surface of the refrigerant.
構とした特許請求の範囲第16項に記載の微凍結粒の製造
装置。21. The apparatus for producing finely-frozen particles according to claim 16, wherein the Ren generator is a shaking mechanism for rocking the storage container.
た噴霧ノズルとから成る特許請求の範囲第16項に記載の
微凍結粒の製造装置。22. The apparatus for producing fine frozen particles according to claim 16, wherein the spraying device comprises a gas-liquid mixer and a spraying nozzle connected thereto.
ある特許請求の範囲第20項に記載の微凍結粒の製造装
置。23. The apparatus for producing fine frozen particles according to claim 20, wherein the air diffuser blows out nitrogen or air.
領域を形成させた密閉状の貯溜容器と、気液混合体を貯
溜容器の上部から冷媒液面に向けて微粒状に噴霧する噴
霧装置と、噴霧装置による噴霧エネルギーとは別個の運
動エネルギーを冷媒液に与えて、その液面に漣を発生さ
せる漣発生装置と、冷媒液位を一定に制御する制御装置
と、を具備することを特徴とする微凍結粒の製造装置。24. A hermetically-sealed storage container which contains a refrigerant liquid and has a cold gas phase region formed on the liquid surface of the refrigerant; and a gas-liquid mixture formed into fine particles from the upper part of the storage container toward the liquid surface of the refrigerant. A spraying device for spraying, a kinetic energy different from the spraying energy by the spraying device is given to the refrigerant liquid, and a ridge generating device for generating ridges on the liquid surface, and a control device for controlling the refrigerant liquid level to be constant. An apparatus for producing finely-frozen particles, comprising:
領域を形成させた密閉状の貯溜容器と、気液混合体を貯
溜容器の上部から冷媒液面に向けて微粒状に噴霧する噴
霧装置と、噴霧装置による噴霧エネルギーとは別個の運
動エネルギーを冷媒液に与えて、その液面に漣を発生さ
せる漣発生装置と、冷媒液中から凍結粒を貯溜容器外に
取り出す搬出装置と、を具備することを特徴とする微凍
結粒の製造装置。25. A hermetically-sealed storage container containing a refrigerant liquid and having a cold gas phase region formed on the liquid surface of the refrigerant, and a gas-liquid mixture in the form of fine particles from the upper part of the storage container toward the liquid surface of the refrigerant. A spraying device that sprays, a kinetic energy that is different from the spraying energy from the spraying device is applied to the refrigerant liquid, and a ripple generator that generates a ripple on the liquid surface, and frozen particles from the refrigerant liquid are taken out of the storage container. An apparatus for producing finely-frozen particles, comprising:
コンベアーとした特許請求の範囲第25項に記載の微凍結
粒の製造装置。26. The apparatus for producing finely-frozen particles according to claim 25, wherein the carry-out device is an endless conveyor or a screw conveyor.
領域を形成させた密閉状の貯溜容器と、気液混合体を貯
溜容器の上部から冷媒液面に向けて微粒状に噴霧する噴
霧装置と、噴霧装置による噴霧エネルギーとは別個の運
動エネルギーを冷媒液に与えて、その液面に漣を発生さ
せる漣発生装置と、貯溜容器内で発生する冷媒液の蒸発
ガスの一部を噴霧装置に供給して、気液混合体又はこれ
を形成する気体と液体の少なくとも一方を冷却する冷却
装置と、を具備することを特徴とする微凍結粒の製造装
置。27. A closed storage container containing a refrigerant liquid and having a cold gas phase region formed on the liquid surface of the refrigerant, and a gas-liquid mixture formed into fine particles from the upper part of the storage container toward the liquid surface of the refrigerant. A spraying device that sprays, a kinetic energy that is different from the spraying energy from the spraying device is applied to the refrigerant liquid to generate a ripple on the liquid surface, and one of the evaporation gas of the refrigerant liquid generated in the storage container. And a cooling device for cooling at least one of a gas and a liquid forming the gas-liquid mixture or the gas-liquid mixture, and an apparatus for producing fine frozen particles.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60255496A JPH074511B2 (en) | 1985-11-14 | 1985-11-14 | Method and apparatus for producing fine frozen particles |
| US06/927,039 US4704873A (en) | 1985-11-14 | 1986-11-05 | Method and apparatus for producing microfine frozen particles |
| EP86308775A EP0225081B1 (en) | 1985-11-14 | 1986-11-11 | Method and apparatus for producing microfine frozen particles |
| DE8686308775T DE3675346D1 (en) | 1985-11-14 | 1986-11-11 | METHOD AND DEVICE FOR PRODUCING MICROFINE FROZEN PARTICLES. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60255496A JPH074511B2 (en) | 1985-11-14 | 1985-11-14 | Method and apparatus for producing fine frozen particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62114639A JPS62114639A (en) | 1987-05-26 |
| JPH074511B2 true JPH074511B2 (en) | 1995-01-25 |
Family
ID=17279557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60255496A Expired - Fee Related JPH074511B2 (en) | 1985-11-14 | 1985-11-14 | Method and apparatus for producing fine frozen particles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074511B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3744329A1 (en) * | 1987-12-28 | 1989-07-06 | Schwarz Pharma Gmbh | METHOD FOR THE PRODUCTION OF AT LEAST ONE ACTIVE AGENT AND A TRAITER COMPRISING PREPARATION |
| JP2514263B2 (en) * | 1990-03-29 | 1996-07-10 | 株式会社テック | Handheld terminal |
| JP2514264B2 (en) * | 1990-03-29 | 1996-07-10 | 株式会社テック | Handheld terminal |
| JPH0441286U (en) * | 1990-08-03 | 1992-04-08 | ||
| JPH0441285U (en) * | 1990-08-03 | 1992-04-08 | ||
| JP5221437B2 (en) * | 2009-04-03 | 2013-06-26 | パナソニック株式会社 | Nanofiber manufacturing equipment |
| ES2676667B1 (en) * | 2016-12-23 | 2019-04-29 | Ayats Kimi Ridaura | DEVICE FOR SPHERIFICATION OF A LIQUID |
| CN116242690A (en) * | 2018-06-20 | 2023-06-09 | 简•探针公司 | Method and apparatus for freezing dispensed droplets |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4948832A (en) * | 1973-06-30 | 1974-05-11 | ||
| SE7512179L (en) * | 1974-11-07 | 1976-05-10 | Jacques Guiller | PROCEDURE FOR TRANSFORMING A MASS IN LIQUID FORM TO KULOR GRANULES OR OTHER SMALLER BODIES IN FROZEN FORM, AND DEVICE FOR EXTENSION OF THE PROCEDURE |
| JPS5939635U (en) * | 1982-09-06 | 1984-03-13 | 日本特殊陶業株式会社 | Granulation equipment |
-
1985
- 1985-11-14 JP JP60255496A patent/JPH074511B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62114639A (en) | 1987-05-26 |
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