JPS62210368A - Production unit for hyperfine frozen particle - Google Patents
Production unit for hyperfine frozen particleInfo
- Publication number
- JPS62210368A JPS62210368A JP5225886A JP5225886A JPS62210368A JP S62210368 A JPS62210368 A JP S62210368A JP 5225886 A JP5225886 A JP 5225886A JP 5225886 A JP5225886 A JP 5225886A JP S62210368 A JPS62210368 A JP S62210368A
- Authority
- JP
- Japan
- Prior art keywords
- frozen
- liquid
- refrigerant
- ultrafine
- particles
- 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
- 239000002245 particle Substances 0.000 title claims description 55
- 238000004519 manufacturing process Methods 0.000 title description 19
- 239000007788 liquid Substances 0.000 claims description 54
- 239000003507 refrigerant Substances 0.000 claims description 38
- 238000012546 transfer Methods 0.000 claims description 26
- 238000007710 freezing Methods 0.000 claims description 16
- 230000008014 freezing Effects 0.000 claims description 16
- 239000003595 mist Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- 239000011882 ultra-fine particle Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 6
- 238000005422 blasting Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
- F25C3/04—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2303/00—Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
- F25C2303/048—Snow making by using means for spraying water
- F25C2303/0481—Snow making by using means for spraying water with the use of compressed air
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 （産業上の利用分舒） 本発明は、超微凍結粒の製造装置に関するものである。[Detailed description of the invention] (Industrial use distribution) The present invention relates to an apparatus for producing ultrafine frozen particles.
（従来の技術）
従来からも、ブラスティング、クリーニング等の表面処
理用の砥粒、研磨材等として用いられる微苅な氷粒等の
凍結粒を製造するための装置として種々の構造のものが
提案されているが、一般には、第６図に示す如く、凍結
粒製造容器１の下部に液化窒素等の冷媒２を収容すると
共に、容器１の上部に、水等の被凍結液を供給する供給
管３及びドライブガス導入管４を接続した噴霧器５を配
設して、被凍結液を、導入管４から導入したドライブガ
スとの混合状態で噴霧器５から冷媒２の液面、に向けて
噴霧することにより、微粒化された被凍結液叩ち微粒液
６ａ・・・を冷媒２との熱交換により凍結させ、微細な
凍結粒６ｂ・・・を得るように構成しているのが普通で
ある。(Prior Art) Conventionally, devices of various structures have been used to produce frozen particles such as fine ice particles used as abrasive particles and polishing materials for surface treatments such as blasting and cleaning. Although it has been proposed, generally, as shown in FIG. 6, a refrigerant 2 such as liquefied nitrogen is stored in the lower part of the frozen grain production container 1, and a liquid to be frozen such as water is supplied to the upper part of the container 1. A sprayer 5 connected to the supply pipe 3 and the drive gas introduction pipe 4 is installed, and the liquid to be frozen is directed from the sprayer 5 to the liquid surface of the refrigerant 2 in a mixed state with the drive gas introduced from the introduction pipe 4. By spraying, the atomized liquid to be frozen is usually frozen by heat exchange with the refrigerant 2 to obtain fine frozen particles 6b. It is.
（発明が解決しようとする問題点）
かかる構成の従来装置では、ドライブガスによる噴霧作
用によって微粒液６ａ・・・を得るようにしているため
、噴霧ノズル径を小さくする工作に限界があることから
当然微粒液６ａ・・・の粒径の微小化には限度があって
、せいぜい粒径下限１直が３０μｍ程度の凍結粒６ｂを
製造し得るにすぎない。(Problems to be Solved by the Invention) In the conventional device having such a configuration, the fine droplet liquid 6a is obtained by the atomizing action of the drive gas, so there is a limit to the work that can be done to reduce the diameter of the atomizing nozzle. Naturally, there is a limit to the miniaturization of the particle size of the fine particle liquid 6a, and it is only possible to produce frozen particles 6b with a particle size lower limit of about 30 μm at most.
したがって、上述の如き従来装置で製造し得る凍結粒６
ｂ・・・は粒径がカμｍ以上の比較的大きい範囲にとど
まるため、どうしてもその使用範囲も限定されるという
問題を残していた。特に近年、超微粒化した凍結物を被
処理物面に噴射することにより、従来困難とされていた
各種表面に付着する徹釧な異物、塵芥、破砕片、パリ等
の除去、特に華奢な或は精密加工を要する物品のクリー
ニング、ブラスティング等も良好に行いつる可能性がひ
らけてきて、そのため粒径が数μｍ程度の超微粒凍結粒
の製造が強く要請されるに至り、かかる要請があるにも
拘らず、従来装置ではその要請に応えることができない
でいた。Therefore, the frozen particles 6 that can be produced using the conventional apparatus as described above
Since the particle size of b... remains within a relatively large range of micrometers or more, the problem remains that the range of use thereof is inevitably limited. In particular, in recent years, by spraying ultra-fine frozen material onto the surface of the workpiece, it has become possible to remove fine foreign matter, dust, crushed pieces, paris, etc. that adhere to various surfaces, which was previously considered difficult. It has become possible to perform cleaning, blasting, etc. of items that require precision processing, and there has been a strong demand for the production of ultrafine frozen particles with a particle size of several μm. However, conventional devices have not been able to meet this demand.
しかも、従来装置では、上述した如く微粒液６ａないし
凍結粒６ｂの粒径が加μｍ程度と比較的大きいため、単
位粒径当りの凝固熱量が大きく、冷媒２との熱交換効率
が低く比較的大きな冷却時間を要することとなって、凍
結を確実に行わせるには、被凍結液ないし微粒液６ａ・
・・と冷媒２との温度差を相当大きくする必要を生じ、
被凍結液３を急冷するための格別の予冷装置を必要とす
るなど、製造装置全体の大形化を招き、コス）７ｓ増大
も避けられないといった問題を抱えていた。Moreover, in the conventional device, as mentioned above, the particle size of the fine liquid 6a or frozen particles 6b is relatively large, about 100 μm, so the amount of solidification heat per unit particle size is large, and the heat exchange efficiency with the refrigerant 2 is relatively low. Since a long cooling time is required, in order to ensure freezing, the liquid to be frozen or the fine particle liquid 6a.
It becomes necessary to considerably increase the temperature difference between ... and refrigerant 2,
This method requires a special pre-cooling device to rapidly cool the liquid 3 to be frozen, which leads to an increase in the size of the entire manufacturing device, and an unavoidable increase in cost by 7 seconds.
ところで、噴霧器５における被凍結液に対するドライブ
ガスの混合比率を極端に大きくすれば、噴霧による被凍
結液の微粒化を促進し得るものの、最小限界として粒径
が５〜１０μｍ程度の凍結粒６ｂを製造するのがやっと
であり、しかもこの場合には、均一な粒径の微粒液６ａ
・・・したがって凍結粒６ｂ・・・を得ることば困難で
あった。また例えば被凍結液として水を用い、ドライブ
ガスとして窒素を用い、水に対するガスの容積比率を増
加して粒径を５μｍ程度に小さくしようとすると、その
容積比率は１ ： １９００という様に算出され、ドラ
イブガスの増加は必然的に冷媒２の使用↑をも飛躍的に
増加させることとなり、凍結粒６ｂの単位量当りの冷媒
使用原単位を著しく増加させ、経済的に工業化を困難な
らしめるので、と記の如き技術的課題の解決策としては
実際上採用し得ない。Incidentally, if the mixing ratio of the drive gas to the liquid to be frozen in the sprayer 5 is extremely increased, it is possible to promote atomization of the liquid to be frozen by spraying, but as a minimum, the frozen particles 6b with a particle size of about 5 to 10 μm are In this case, it is difficult to produce fine particle liquid 6a with uniform particle size.
Therefore, it was difficult to obtain frozen grains 6b. For example, if water is used as the liquid to be frozen and nitrogen is used as the drive gas, and the volume ratio of gas to water is increased to reduce the particle size to about 5 μm, the volume ratio will be calculated as 1:1900. , an increase in drive gas will inevitably lead to a dramatic increase in the use of refrigerant 2, which will significantly increase the refrigerant usage per unit amount of frozen particles 6b, making industrialization economically difficult. , cannot be practically adopted as a solution to the technical problems as described above.
本発明は、かかる従来技術の実情に鑑み、各種表面の微
細な異物、塵芥、破砕片、パリ等の除去、華奢な或は精
密加工を要する物品のクリーニング。In view of the actual state of the prior art, the present invention is aimed at removing minute foreign matter, dust, debris, pars, etc. from various surfaces, and cleaning articles that are delicate or require precision processing.
ブラスティング等の処理に適する超微粒化された均一粒
径の凍結粒を容易且つ確実に得ることができる超微凍結
粒の製造装置を提供することを目的とする。It is an object of the present invention to provide an apparatus for producing ultra-fine frozen particles that can easily and reliably obtain ultra-fine frozen particles of uniform particle size that are suitable for processing such as blasting.
（問題点を解決するための手段）
本発明の超微凍結粒の製造装置は、上記の課題解決の目
的を達成すべく、被凍結液を収容した密閉容器と、この
被凍結液に超音波による振動エネルギーを付与して、前
記密閉容器内に霧状の超微粒液である超微粒霧を発生浮
遊させる超音波手段と、この浮遊超微粒霧を前記密閉容
器外へ気流に乗せて移送する移送手段と、該移送手段に
より移送された前記超微粒霧を冷媒との熱交換により凍
結させる凍結手段とを具備したものである。(Means for Solving the Problems) In order to achieve the purpose of solving the above-mentioned problems, the apparatus for producing ultrafine frozen particles of the present invention includes a sealed container containing a liquid to be frozen, and an ultrasonic wave applied to the liquid to be frozen. an ultrasonic means that generates and suspends ultrafine mist, which is a mist-like ultrafine liquid, in the sealed container by applying vibrational energy; The apparatus includes a transfer means and a freezing means for freezing the ultrafine mist transferred by the transfer means by heat exchange with a refrigerant.
（作用）
かかる溝成によれば、密閉容器内の被凍結液面上の密閉
空間に、超音波による振動エネルギーが被凍結液に付与
されることによって、従来装置におけるドライブガスに
よる噴霧作用によっては到底得ることができない均一に
超微粒化された霧状の被凍結液粒つまり超微粒霧を発生
浮遊させることができる。この超微粒霧は密閉容器外に
移送された上、冷媒との熱交換によって霧状の微粒子の
まま凍結させることができ、その結果、従来装置では不
可能視されていた均一な超微粒（粒径３μｍ程度）の凍
結粒つまり超微凍結粒を得ることができることとなった
。この場合、冷媒との熱交換により凍結される超微粒霧
は、超音波による振動エネルギーの作用によって始めて
得られるものであって、粒径均一にして超微粒のもので
あるから、冷媒との熱交換効率が飛躍的に高く、冷媒と
の温度差をさほど大きくとらなくても確実且つ急速に凍
結させることができる。(Function) According to this structure, ultrasonic vibration energy is applied to the liquid to be frozen in the sealed space above the surface of the liquid to be frozen in the closed container, which makes it possible to eliminate the atomizing action of the drive gas in conventional devices. It is possible to generate and suspend uniformly ultrafine atomized frozen liquid droplets, that is, ultrafine mist, which is impossible to obtain. This ultra-fine mist is transferred outside the sealed container and can be frozen as a mist-like fine particle through heat exchange with the refrigerant, resulting in uniform ultra-fine particles (particles It became possible to obtain frozen particles (about 3 μm in diameter), that is, ultrafine frozen particles. In this case, the ultrafine mist that is frozen by heat exchange with the refrigerant is obtained only by the action of vibrational energy from ultrasonic waves, and since the particle size is uniform and ultrafine, the The exchange efficiency is dramatically high, and it is possible to reliably and rapidly freeze the refrigerant even without a large temperature difference.
（実施例）
以下、本発明の４１成を第１図〜第３図に示す各実施例
に基づいて具体的に説明する。(Example) Hereinafter, 41 components of the present invention will be specifically explained based on each example shown in FIGS. 1 to 3.
第１図に示す第１実施例の製造装置において、１１は密
閉容器、１２は超音波手段、１３は移送手段、１４は凍
結手段である。In the manufacturing apparatus of the first embodiment shown in FIG. 1, 11 is a closed container, 12 is an ultrasonic means, 13 is a transfer means, and 14 is a freezing means.
密閉容器１１内には、被凍結液供給管１５から供給され
た水等の被凍結液１６が所定量収容され、その液面上に
所定容量の密閉空間１１ ａが設けられている。なお、
被凍結液１６の液面高さは、液面検出器２９による検出
直に応じて電磁弁１５ ａを開閉制御することによって
一定範囲に維持される。A predetermined amount of a frozen liquid 16 such as water supplied from a frozen liquid supply pipe 15 is stored in the sealed container 11, and a sealed space 11a of a predetermined capacity is provided above the liquid level. In addition,
The liquid level height of the liquid to be frozen 16 is maintained within a certain range by controlling the opening and closing of the solenoid valve 15 a in response to detection by the liquid level detector 29 .
超音波手段１２は密閉容器１１の被凍結液１６中に超音
波を送り込む振動子１７ ａとその制御袋Ｎ １７ ｂ
とからなり、振動子１７ ａから被凍結液６中に超音波
を送り込むことによって、その振動エネルギーの作用で
前記空間１１ ａに被凍結液の超微粒子化された粒径均
一な超微粒ｇ １６ ａ・・・を発生せしめ−ｙ＝にる
ように構成されたものである。なお、振動子１７ ａか
ら発する超音波の周波数は、被凍結液１６の性状や所望
の微粒子の径、温度等の条件に応じて適宜設定すること
が望ましく、例えば、被凍結液が水の場合、冷媒として
液化窒素を用い、所望の超微凍結粒の径として３μｍと
する実施例では、水温３０°Ｃに於て周波数的１７００
ＨＺにするとよい。The ultrasonic means 12 includes a vibrator 17 a that sends ultrasonic waves into the liquid to be frozen 16 in the sealed container 11 and its control bag N 17 b.
By sending ultrasonic waves from the vibrator 17a into the liquid to be frozen 6, ultrafine particles g16 of the liquid to be frozen, which are made into ultrafine particles with a uniform particle size, are produced in the space 11a by the action of the vibration energy. It is constructed so that a... is generated and -y=. Note that the frequency of the ultrasonic waves emitted from the transducer 17a is desirably set appropriately depending on the properties of the liquid to be frozen 16, the desired particle diameter, temperature, etc. For example, when the liquid to be frozen is water, In an example in which liquefied nitrogen is used as the refrigerant and the diameter of the desired ultrafine frozen particles is 3 μm, the frequency is 1700 μm at a water temperature of 30°C.
It is better to set it to HZ.
移送手段１３は、前記密閉容器１１の上部にその空間１
１ ａに連通ずる移送用ガス共給管１８及び移送管１９
を夫々接続したものであってもよく、移送ガス供給９１
８から窒素ガス等の移送用ガスを供給させることにより
、前記空間１１ ａに発生した超微粒７１６ ａ・・・
を、前記移送ガスと共に宵を風に乗せた状態で、移送管
１９を介して密閉容器１１外へ移送させればよい。The transfer means 13 has a space 1 in the upper part of the closed container 11.
1 A gas common supply pipe 18 and a transfer pipe 19 communicating with a.
may be connected to each other, and the transfer gas supply 91
By supplying a transfer gas such as nitrogen gas from 8, the ultrafine particles 716a generated in the space 11a...
may be transferred to the outside of the closed container 11 via the transfer pipe 19 while being blown by the wind along with the transfer gas.
或は第４図に示した様に、系内にファン３１を設けて移
送してもよい。なお、移送用ガス供給管１８から９ ｒ
Ａされる移送用ガスの圧力は、上記実施例のものでは、
水柱圧１００胡程度に設定した。Alternatively, as shown in FIG. 4, a fan 31 may be provided within the system for transfer. In addition, from the transfer gas supply pipe 18 to 9 r
In the above example, the pressure of the transfer gas to be A is as follows:
The water column pressure was set at about 100 hu.
凍結手段１４は、液化窒素等の冷媒２０を所定量収容し
た凍結粒製造容器２１を設け、この容器２１の上部に前
記移送管１９に接続した吹出口２２を配設して、移送管
１９内を移送用ガスと共に送られてくる超微粒ｇ１６ａ
・・・を、吹出口２２から冷！某２０に向けて吹出させ
ることにより、冷媒２０との熱交換により超微凍結粒１
６ ｂ・・・に凍結させる構成である。なお、凍結粒製
造容器２１にはその冷媒２０中から容器２１外の上方部
位へと延びるスクリューコンベア等の凍結粒、取出手段
２３を設け、冷媒２０中を沈降堆積する超微凍結粒１６
ｂ・・・を容器２１外に取出し、ブラスト用の砥粒等
としての使用に供する。The freezing means 14 includes a frozen particle production container 21 containing a predetermined amount of a refrigerant 20 such as liquefied nitrogen, and an air outlet 22 connected to the transfer pipe 19 in the upper part of the container 21. Ultrafine particles g16a sent together with the transfer gas
... is cooled from the air outlet 22! By blowing out toward a certain 20, ultrafine frozen particles 1 are generated by heat exchange with the refrigerant 20.
6 b... is configured to be frozen. The frozen grain production container 21 is provided with frozen grain removal means 23 such as a screw conveyor extending from the refrigerant 20 to an upper part outside the container 21, and the ultrafine frozen grains 16 that settle and accumulate in the refrigerant 20 are provided.
b... is taken out of the container 21 and used as abrasive grains for blasting or the like.
以上のように構成した製造装置によれば、超音波手段１
２により超微粒化された粒径均一な超微粒Ｗ １６ ａ
を得て、Ｊれを冷媒２０との熱交換により凍結させるか
ら、被凍結液をドライブガスにより噴霧させて微粒化し
た上で凍結させる従来手法によっては到底不可能であっ
た、超微粒且つ均一粒径の凍結物１６ｂ（粒径が３μｍ
程度）を製造することができる。According to the manufacturing apparatus configured as above, the ultrasonic means 1
Ultra-fine particles W 16 a with uniform particle size made ultra-fine by 2
Since the liquid is frozen by heat exchange with the refrigerant 20, the liquid to be frozen is atomized with a drive gas, atomized, and then frozen, which was impossible with the conventional method, which is extremely fine and uniform. Frozen material 16b with particle size (particle size is 3 μm)
degree) can be manufactured.
しかも、このように粒径が飛躍的に極小であるため、冷
媒２０との熱交換効率が極めて高く、従来装置に比して
、装置全体の小形化、簡素化を顕著に進め得て、コスト
の低減も著しい。例えば第６図に示した従来装置では、
噴霧器５に供給する市に被凍結液は予冷装置で予冷させ
ておく必要がある上に、冷却領域即ち噴霧器５の噴出面
と冷媒２の液面との距ｉ１ｈを５００胴程度以上に大き
くとる必要があるが、前記本発明の実施例では、かかる
予冷装置は設置する必要がなく、吹田口２２と冷媒２０
との距離Ｈも１００〜２００ｆｒｒＩｎで済む。さらに
、従来の方法では、第６図に示した様に、被凍結液をノ
ズルから円錐状に噴霧することが多く、容器１の径を大
きくとる必要を生ずる場合が多かったが、本発明の場合
は、単に霧状の被凍結液を吹出せばよく、凍結粒製造容
器２１の径も比較的小さいものであってよい。したがっ
て、凍結粒製造容器２１を含む製造装置全体を思い切っ
て小形化。Moreover, since the particle size is extremely small, the efficiency of heat exchange with the refrigerant 20 is extremely high, making it possible to significantly reduce the size and simplicity of the entire device compared to conventional devices, and reduce costs. The reduction is also significant. For example, in the conventional device shown in Fig. 6,
The liquid to be frozen that is supplied to the sprayer 5 needs to be pre-cooled with a pre-cooling device, and the distance i1h between the cooling area, that is, the ejection surface of the sprayer 5 and the liquid level of the refrigerant 2, is set to be approximately 500 mm or more. However, in the embodiment of the present invention, there is no need to install such a precooling device, and the Suita port 22 and the refrigerant 20
The distance H between the two ends is also only 100 to 200 frrIn. Furthermore, in the conventional method, as shown in FIG. 6, the liquid to be frozen is often sprayed in a conical shape from a nozzle, which often requires a large diameter of the container 1, but the present invention In this case, it is sufficient to simply blow out the atomized liquid to be frozen, and the diameter of the frozen particle production container 21 may also be relatively small. Therefore, the entire manufacturing apparatus including the frozen grain manufacturing container 21 is drastically downsized.
簡素化し得、容器２１内面への凍結物の付着も避は易い
。It can be simplified, and it is easy to avoid adhesion of frozen substances to the inner surface of the container 21.
また、本発明に係る製造装置にあっては、上述した如く
冷媒との熱交換の効率が極めて高く、被凍結液１６は凍
結手段１４による凍結工程前の段階で超微粒化し霧状に
なっているのであるから、次に述べる第２若しくは第３
実施例における如く、凍結手段１４の構成等を工夫する
ことによって、移送手段１３による圧送エネルギーをブ
ラスト、クリーニング処理等のための凍結粒噴射エネル
ギーとしてそのまま利用させることも可能である。さら
に冷媒となる液化窒素２０が超微粒７１６ａ・・・と直
接熱交換し、超微凍結粒１．６ ｂ・・となり、液化窒
素２ｏは液体から気体となり、この気体を直接噴射エネ
ルギーとして利用できる。In addition, in the manufacturing apparatus according to the present invention, as described above, the efficiency of heat exchange with the refrigerant is extremely high, and the liquid to be frozen 16 is ultra-finely atomized and becomes atomized before the freezing process by the freezing means 14. Therefore, the second or third
As in the embodiment, by devising the structure of the freezing means 14, etc., it is also possible to use the pumping energy by the transfer means 13 as is as frozen particle injection energy for blasting, cleaning processing, etc. Furthermore, the liquefied nitrogen 20 serving as a refrigerant directly exchanges heat with the ultrafine particles 716a... to become ultrafine frozen particles 1.6b..., and the liquefied nitrogen 2o changes from liquid to gas, and this gas can be used directly as injection energy. .
すなわち、第２図に示す第２実施例の製造装置にあって
は、移送手段１３の圧送力等を含む全体圧力が２〜１０
Ｋｇ／ ｆｆｌ程度の高圧に設定すると共に、凍結手
段１４が、前記第１実施例と異なって、移送管１９に接
続した〉ズル管２４とこのノズル管２４内に冷媒を噴霧
させる噴霧管２５とで構成しており、その他の構成は前
記第１実施例と同様とした。That is, in the manufacturing apparatus of the second embodiment shown in FIG.
The freezing means 14 is set at a high pressure of approximately Kg/ffl, and, unlike the first embodiment, the freezing means 14 includes a nozzle pipe 24 connected to the transfer pipe 19 and a spray pipe 25 for spraying refrigerant into the nozzle pipe 24. The other configurations were the same as those of the first embodiment.
かかる製造装置によれば、移送ｗ１９からノズル管２４
内に移送された超微粒Ｍ１６ａ・・・は、ノズル管２４
内における圧送領域内で噴霧管２５による噴霧冷媒と熱
交換して凍結した後、超微凍結粒１６ ｂ・・・とじて
ノズル管２４から被処理物に噴射させるのであるＱ
さらに第３図に示す第３実施例の製造装置にあっては、
凍結手段１４が、冷媒２０を収容した密閉容器２６とノ
ズル管２４とを冷媒供給管２７を介して接続すると共に
、冷媒２０底部に超音波を発する振動子乞
２８ ａ及びその制御装置２８ｈけて構成し、その池の
構成は前記第２実施例と同一にした。なお、冷媒２０の
液面高さは、液面検出器３２による検出１直に応じて冷
媒供給管３３の電磁弁３３ ａを開閉制御することによ
って一定範囲に維持される。According to this manufacturing apparatus, the nozzle pipe 24 is transferred from the transfer w19.
The ultrafine particles M16a... transferred into the nozzle pipe 24
After being frozen by heat exchange with the refrigerant sprayed by the spray pipe 25 in the pumping area within the pumping area, the ultra-fine frozen particles 16 b... are then sprayed from the nozzle pipe 24 onto the object to be treated. In the manufacturing apparatus of the third embodiment shown,
The freezing means 14 connects the airtight container 26 containing the refrigerant 20 and the nozzle pipe 24 via the refrigerant supply pipe 27, and also includes a vibrator 28a that emits ultrasonic waves to the bottom of the refrigerant 20 and its control device 28h. The structure of the pond was the same as that of the second embodiment. Note that the liquid level height of the refrigerant 20 is maintained within a certain range by controlling the opening and closing of the solenoid valve 33 a of the refrigerant supply pipe 33 in accordance with the first detection by the liquid level detector 32 .
かかる製造装置を使用すると、密閉容器２６の上部空間
２６ ａに超音波作用によって超微粒冷媒２０ ａ・・
、・が霧状に発生して、これが冷媒２０の蒸発ガスと共
に供給管２７からノズル管２４内に供給され、爾後、前
記第２実施例におけると同様の作用により、超微凍結粒
１６ ｂ・・・がノズル管２４から噴射されるのである
。When such a manufacturing apparatus is used, ultrafine refrigerant 20a...
, and are generated in the form of a mist, which is supplied from the supply pipe 27 into the nozzle pipe 24 together with the evaporated gas of the refrigerant 20, and then, by the same action as in the second embodiment, the ultrafine frozen particles 16b, ... is injected from the nozzle pipe 24.
このように、第２若しくは第３実施例の如き構成の実施
例では、移送手段１３による圧送エネルギーと冷媒の熱
交換後の気化ガスと、被処理物に超微凍結粒１６ ｂ・
・・を噴射させるための噴射力として利用することがで
き、従来の方法や第１図の実施例の様に微凍結粒取出し
用コンベアー２３の様な手段を省略し得て、極めて簡便
なブラスト装置を提供することができる。In this way, in an embodiment having a structure such as the second or third embodiment, the vaporized gas after the heat exchange between the pumping energy and the refrigerant by the transfer means 13 and the ultrafine frozen particles 16 b.
... can be used as the jetting force for jetting, and it is possible to omit means such as the conveyor 23 for taking out finely frozen grains as in the conventional method and the embodiment shown in FIG. 1, making it an extremely simple blasting method. equipment can be provided.
なお、前記各実施例に於いて、被凍結液としては、凍結
粒の用途に応じて、水の他、果汁液、薬液、液化二酸化
炭素・塩素・アンモニア、フロン系液化ガス等の各皿液
体を用いることが・できる。In each of the above embodiments, the liquid to be frozen may include water, fruit juice liquid, chemical liquid, liquefied carbon dioxide, chlorine, ammonia, fluorocarbon-based liquefied gas, etc., depending on the purpose of the frozen particles. can/can be used.
また、冷媒としては液化窒素、液化２酸化炭素液化空気
、液化酸素、液化アルゴンガス、液化フレオンガス等を
使用することができる。液化二酸化炭素等の液化ガスを
用いる場合には、前記密閉容器１１．２６は真空断熱容
器に構成しておくことが望ましい。Further, as the refrigerant, liquefied nitrogen, liquefied carbon dioxide, liquefied air, liquefied oxygen, liquefied argon gas, liquefied freon gas, etc. can be used. When using a liquefied gas such as liquefied carbon dioxide, it is desirable that the closed container 11.26 be constructed as a vacuum insulated container.
前記各実施例においては、超微粒霧１６ ａの移送管１
９を介しての容器１１外への移送を、移送用ガス供給％
Ｆ１８から容器１１内に移送ガスを供給することによっ
て行うようにしたが、第４図に示す如く、容器１１の上
部にファン３１を内装した送風管３０を接続して、送風
管３０から容器１１内に送風することによって、その風
に乗せた状態で超微粒Ｍ１６ａを移送管１９を介して容
器１１外へ移送させるようにしてもよい。In each of the embodiments described above, the transfer pipe 1 for the ultrafine mist 16a
9 to the outside of the container 11, the transfer gas supply%
This was done by supplying the transfer gas into the container 11 from the F18, but as shown in FIG. By blowing air into the container, the ultrafine particles M16a may be transferred to the outside of the container 11 via the transfer pipe 19 while being carried by the air.
本発明に係る製造装置を使用する場合、振動子１７ ａ
によって被凍結液１６中に送り込む藺音波の周波数を変
えることによって、超微凍結粒１６ ｂの粒径を適宜調
節することができる。例えば、被凍結液として水を、ま
た冷媒として液化窒素を用い、本発明の装置によって凍
結粒を製造する場合、温度２０°Ｃに於いては、超微凍
結粒の粒径（μｍ）を竪軸に、超音波発生用振動子の周
波数（Ｈｚ ）を横軸にとって両者の関係をプロットす
ると、第５図の如きグラフが得られた。被凍結液、冷媒
、振動子周波数、温度を変えて同様にプロットすること
によって実酸データを揃えておけば、所望の粒径の７ｉ
１！桔粒を得る等の条件を容易に見出すことができる。When using the manufacturing apparatus according to the present invention, the vibrator 17 a
By changing the frequency of the sonic waves sent into the liquid to be frozen 16, the particle size of the ultrafine frozen particles 16b can be adjusted as appropriate. For example, when producing frozen particles using the apparatus of the present invention using water as the liquid to be frozen and liquefied nitrogen as the refrigerant, at a temperature of 20°C, the particle size (μm) of the ultrafine frozen particles is When the relationship between the two is plotted on the axis and the frequency (Hz) of the ultrasonic generating transducer on the horizontal axis, a graph as shown in FIG. 5 is obtained. If you prepare real acid data by plotting in the same way while changing the liquid to be frozen, refrigerant, oscillator frequency, and temperature, you can obtain 7i of the desired particle size.
1! Conditions such as obtaining mortar grains can be easily found.
（発明の効果）
本発明の超微凍結粒の製造装置は、被凍結液に超音波作
用を与えることによって均一に植機粒化して霧状に浮遊
させた状態で冷媒と熱交換させるように構成したので、
従来装置では到底得ることの出来ない均−且つ超微粒の
凍結粒を容易且つ確実に製造することができ、近年特に
強く要請されている凍結粒による超精密処理を容易に実
現させ得る手段となる。(Effects of the Invention) The apparatus for producing ultrafine frozen granules of the present invention applies ultrasonic action to the liquid to be frozen, so that the liquid is uniformly granulated and suspended in the form of a mist, which exchanges heat with the refrigerant. Since I configured it,
It is possible to easily and reliably produce homogeneous and ultra-fine frozen particles that cannot be obtained with conventional equipment, and it is a means to easily realize ultra-precision processing using frozen particles, which has been particularly strongly requested in recent years. .
しかも、超微粒液ないし超微凍結粒が均一にして超微粒
であるため、冷媒との熱交換の効率が極めて高くなるこ
とから、凍結手段の構成を著しく簡略化し得て、装置全
体をコンパクトにまとめて小型化し得、コストの大幅な
低減を図りうる発明であり、工業的に価（直が高い。Moreover, since the ultrafine liquid or ultrafine frozen particles are uniform and ultrafine, the efficiency of heat exchange with the refrigerant is extremely high, so the configuration of the freezing means can be significantly simplified and the entire device can be made compact. It is an invention that can be miniaturized all at once, significantly reducing costs, and is industrially cost-effective.
第１図は本発明に係る製造装置の一実施例を示す概略の
縦断側面図、第２図は他の実施例を示す第１図同様図、
第３図は更に他の実施例を示す第１図同様図であり、第
４図は移送手段の変形例を示す要部の概略縦断側面図で
あり、第５図は振動子の周波数と凍結粒の粒重との関係
を示すグラフであり、第６図は従来の製造装置を示す第
１図同様図である。
１１・・・密閉容器、１２・・・超音波手段、１３・・
・移送手段、１４・・・凍結手段、１６・・・被凍結液
、１６ａ・・・超微粒霧！、１６ ｂ・・超微凍結粒。
第１図
７ｂ
第２図
第６図
第５図
固兼数（Ｈｚ）FIG. 1 is a schematic longitudinal sectional side view showing one embodiment of the manufacturing apparatus according to the present invention, FIG. 2 is a view similar to FIG. 1 showing another embodiment,
FIG. 3 is a view similar to FIG. 1 showing still another embodiment, FIG. 4 is a schematic longitudinal sectional side view of the main part showing a modification of the transfer means, and FIG. 5 is a diagram showing the frequency and freezing of the vibrator. It is a graph showing the relationship between grain weight and grain weight, and FIG. 6 is a diagram similar to FIG. 1 showing a conventional manufacturing apparatus. 11... Airtight container, 12... Ultrasonic means, 13...
- Transfer means, 14...Freezing means, 16...Liquid to be frozen, 16a...Ultra fine mist! , 16 b...Ultra-fine frozen grains. Figure 1 7b Figure 2 Figure 6 Figure 5 Fixed frequency (Hz)
Claims (1)
による振動エネルギーを付与して、前記密閉容器内に霧
状の超微粒液である超微粒霧を発生浮遊させる超音波手
段と、この浮遊超微粒霧を前記密閉容器外へ気流に乗せ
て移送する移送手段と、該移送手段により移送された前
記超微粒霧を冷媒との熱交換により凍結させる凍結手段
とを具備することを特徴とする超微凍結粒の製造装置。an airtight container containing a liquid to be frozen; an ultrasonic means for generating and suspending ultrafine mist, which is an atomized ultrafine liquid, in the airtight container by applying ultrasonic vibrational energy to the liquid to be frozen; It is characterized by comprising a transfer means for transferring the suspended ultrafine mist to the outside of the closed container in an air current, and a freezing means for freezing the ultrafine mist transferred by the transfer means by heat exchange with a refrigerant. A device for producing ultra-fine frozen particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5225886A JPS62210368A (en) | 1986-03-10 | 1986-03-10 | Production unit for hyperfine frozen particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5225886A JPS62210368A (en) | 1986-03-10 | 1986-03-10 | Production unit for hyperfine frozen particle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62210368A true JPS62210368A (en) | 1987-09-16 |
| JPH0566514B2 JPH0566514B2 (en) | 1993-09-21 |
Family
ID=12909727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5225886A Granted JPS62210368A (en) | 1986-03-10 | 1986-03-10 | Production unit for hyperfine frozen particle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62210368A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01155168A (en) * | 1987-12-11 | 1989-06-19 | Taiyo Sanso Co Ltd | Forming device for ultrafine frozen particle |
| JP2018031539A (en) * | 2016-08-25 | 2018-03-01 | 大陽日酸株式会社 | Slurry ice making method |
-
1986
- 1986-03-10 JP JP5225886A patent/JPS62210368A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01155168A (en) * | 1987-12-11 | 1989-06-19 | Taiyo Sanso Co Ltd | Forming device for ultrafine frozen particle |
| JP2018031539A (en) * | 2016-08-25 | 2018-03-01 | 大陽日酸株式会社 | Slurry ice making method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0566514B2 (en) | 1993-09-21 |
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