JPH06281303A - Fine-grain ice making method and apparatus - Google Patents

Abstract

PURPOSE:To efficiently achieve a continuous constant amount ice making without adhesion of fine-grain ice to a wall surface of the apparatus by blowing material into a through hole in dry ice by a spray means to perform a heat exchange between sprayed particles and the dry ice or a sublimated vapor gas being kept in contact with each other. CONSTITUTION:A through hole 1 is formed at the center of dry ice A fixed and a tip port of a one-fluid nozzle type jet nozzle 2a which is allowed to spray material with a pressure pump is provided at an inlet la of the through hole 1 closer thereto. A sheet 3 or a container is arranged outward from an outlet 1b of a through port 1 to hold fine-grain ice. When material is blown into the through hole 1 of the dry ice A from the jet nozzle 2a at a specified pressure. the fine-grain ice can be made and discharged efficiently by the dry ice A having a cooling force almost doubling the ice. The fine-grain ice can be received better as intact into the sheet 3 or the container without adhering thereto.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、水あるいはその他液体
よりなる被凍結液（以下原料という）を噴霧させながら
微粒子状の氷を製造することができる微粒子状製氷方法
及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fine particle ice making method and apparatus capable of producing fine particle ice while spraying a liquid to be frozen (hereinafter referred to as raw material) made of water or other liquid.

【０００２】[0002]

【従来の技術】従来、被凍結液を微粒子状に製氷する装
置は、特公昭５８−１７３９２号公報、特開昭６２−１
９６５７４号公報、特開昭６２−１９６５７５号公報、
特開昭６２−２１０３６８号公報、特開昭６３−９１４
７０号公報、特開平１−１５５１６８号公報等に見られ
るように、液体窒素などの冷媒を使用するとともに、多
くの製造手段を組み合わせて製造できるようになってい
た。2. Description of the Related Art Conventionally, a device for making a frozen liquid into fine particles has been disclosed in Japanese Patent Publication No. 58-17392 and Japanese Patent Laid-Open No. 62-1.
96574, JP-A-62-196575,
JP-A-62-210368, JP-A-63-914
As disclosed in Japanese Patent Application Laid-Open No. 70-70, Japanese Patent Application Laid-Open No. 1-155168, etc., it has become possible to manufacture by using a refrigerant such as liquid nitrogen and combining many manufacturing means.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、冷媒と
して使用する液体窒素などは１kgあたり１０００円〜６
００円と高価であって製造原価が高くなり、また、製氷
・回収手段を要するため複雑な構造の製造装置となって
調整個所も多く、操作も難しい上に装置の設備ではコス
トアップとなり、しかも 微粒氷を製造する際、装置壁
面に微粒氷が附着するために製氷性能にも問題点があ
る、といった不具合を呈していた。However, the liquid nitrogen used as the refrigerant is 1000 yen to 6 yen per kg.
The cost is as high as 00 yen and the manufacturing cost is high. Moreover, since the ice making / recovering means is required, the manufacturing device has a complicated structure, and there are many adjustment points, and it is difficult to operate and the equipment cost increases. When producing fine ice, there was a problem that the ice making performance had a problem because the fine ice adhered to the wall surface of the device.

【０００４】[0004]

【課題を解決するための手段】本発明は、そのような不
具合を解決し、効率の良い微粒子状製氷が可能となるよ
う工夫したものであり、そのため、原料を噴霧手段によ
りドライアイス中の貫通孔内に吹き込んで噴霧粒子とド
ライアイスまたはその昇華蒸発ガスを接触させて熱交換
させることにより、微粒子状の氷を製造可能としたもの
であり、また、原料を圧搾空気により噴霧させることが
できる噴出ノズルをドライアイス中の貫通孔の入口に接
近させて装備し構成したものである。The present invention has been devised so as to solve such a problem and enable efficient particulate ice making. Therefore, the raw material is penetrated into the dry ice by the spraying means. Fine particles of ice can be produced by blowing heat into the holes to bring the sprayed particles into contact with dry ice or its sublimated evaporative gas and heat the particles, and the raw material can be sprayed with compressed air. The jet nozzle is installed near the entrance of the through hole in the dry ice.

【０００５】[0005]

【作用】したがって、原料を圧搾空気により噴出ノズル
から一定の圧力でドライアイスの貫通孔内に噴出させる
と、氷の約２倍の冷却力を有するドライアイスの昇華作
用により装置壁面に微粒氷が附着することなく、連続定
量製氷を効率良く行い、もって微粒子状の氷にして貫通
孔の出口より連続放出できる。Therefore, when the raw material is jetted into the through-hole of dry ice from the jet nozzle with a constant pressure by the compressed air, the sublimation action of the dry ice having a cooling power about twice that of ice causes the formation of fine ice particles on the wall surface of the device. It is possible to efficiently perform continuous quantitative ice-making without adhering, and thereby to make ice in the form of fine particles and continuously release it from the outlet of the through-hole.

【０００６】[0006]

【実施例】図１は製氷装置の一部を示し、固定するドラ
イアイスＡの中心部には貫通孔１を形成して、該貫通孔
１の入口１ａには、原料を圧力ポンプにより噴霧させる
ことができる１流体ノズル式の噴出ノズル２ａの先端口
を接近させて設け、貫通孔１の出口１ｂの外方には微粒
子状の氷を受けるシート３あるいは容器を配備して構成
したものであり、また、図２は、原料の圧入口４と、コ
ンプレッサからの圧搾空気が流入する流入口５とを有す
る２流体ノズル式の噴出ノズル２ｂを、その先端が貫通
孔１の入口１ａから５０mmまでの間隔Ｌをおいて接近す
るように配備した構成を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a part of an ice making device. A through hole 1 is formed in the center of dry ice A to be fixed, and a raw material is sprayed into an inlet 1a of the through hole 1 by a pressure pump. The one-fluid nozzle type jet nozzle 2a that can be provided is provided close to the tip opening, and a sheet 3 or a container for receiving fine-grained ice is provided outside the exit 1b of the through hole 1. Further, FIG. 2 shows a two-fluid nozzle type jet nozzle 2b having a raw material pressure inlet 4 and an inlet 5 into which compressed air from the compressor flows, the tip of which is from the inlet 1a of the through hole 1 to 50 mm. 2 shows a configuration in which they are arranged so as to be close to each other with a space L therebetween.

【０００７】したがって、図１及び図２に示すように、
原料を所定の圧力で噴出ノズル２ａ，２ｂからドライア
イスＡの貫通孔１内に吹き込むと、氷の約２倍の冷却力
を有するドライアイスＡにより効率良く微粒子状の氷に
して放出できることになり、そのまま、その微粒子状氷
をシート３または容器に付着することなく良好に受入れ
ることができる。Therefore, as shown in FIG. 1 and FIG.
When the raw material is blown into the through hole 1 of the dry ice A from the jet nozzles 2a and 2b at a predetermined pressure, the dry ice A having a cooling power about twice that of ice can be efficiently discharged into fine particle ice. As it is, the particulate ice can be satisfactorily received without adhering to the sheet 3 or the container.

【０００８】次に、そのようにドライアイスＡを使用し
て効率の良い微粒子状の製氷ができる本発明を完成する
ために行なった各実験の結果を説明するが、先ず、ドラ
イアイスＡの貫通孔１の孔径が４〜７cmで、該装置の周
囲の雰囲気温度が−４〜０℃、噴霧量が７０cc／分で粒
子径が１０μ程度となる状態で、コンプレッサの圧力を
変化させた場合、表１に示すように、ドライアイスＡの
貫通孔１の長さが変っても全てが氷になる、といった結
果を得た。[0008] Next, the results of each experiment carried out to complete the present invention capable of efficiently producing fine-grained ice using such dry ice A will be described. First, the dry ice A is penetrated. When the pressure of the compressor is changed in a state in which the hole diameter of the hole 1 is 4 to 7 cm, the ambient temperature of the apparatus is -4 to 0 ° C., the spray amount is 70 cc / min and the particle size is about 10 μ, As shown in Table 1, it was obtained that even if the length of the through-hole 1 of the dry ice A changes, all of the ice becomes ice.

【０００９】次に、表２に示すように製氷能力の実験を
行なったが、この場合は、コンプレッサの圧力が、４kg
／cm² で噴霧量が３００cc／分となって粒子径が３０〜
５０μとなる状態で、１回目には、縦９６mm×横１４６
mm×長さ４５６mmで６４００ｇとなるドライアイスＡに
対し噴霧して２分間、製氷したところ、粒子径が４０〜
７０μとなる氷が５００ｇでき、その際のドライアイス
Ａの重量が６０８０ｇで、貫通孔１の孔径が６７mmとな
っており、また、ドライアイスＡの重量を変えて２回
目、３回目と実験を重ねたところ、表２に示すようにそ
れなりの製氷結果を得た。Next, as shown in Table 2, the ice-making ability was tested. In this case, the compressor pressure was 4 kg.
/ Cm ² spray amount is 300cc / min and particle size is 30 ～
At 50μ, the first time is 96mm in height x 146 in width
mm × length 456 mm, sprayed on 6400 g of dry ice A, and ice-made for 2 minutes.
The amount of ice that becomes 70μ is 500 g, the weight of dry ice A at that time is 6080 g, the hole diameter of the through hole 1 is 67 mm, and the weight of dry ice A is changed to the second and third experiments. When piled up, as shown in Table 2, some ice-making results were obtained.

【００１０】また、表３に示すように、コンプレッサの
圧力が６kg／cm² で噴霧量が７０cc／分となって粒子径
が１０〜３０μとなる状態で、１回目には、縦１００mm
×横１５０mm×長さ４６０mmで７２００ｇとなるドライ
アイスＡに対し噴霧して５分間、製氷したところ、粒子
径が１０〜３０μとなる氷が３３３ｇでき、その際のド
ライアイスＡの重量が６９００ｇで、貫通孔１の孔径が
６０mmとなっており、次いでドライアイスＡの重量を変
えて２回目の実験を重ねたところ、表３に示すようにそ
れなりの製氷結果を得た。Further, as shown in Table 3, when the pressure of the compressor is 6 kg / cm ² and the spray amount is 70 cc / min and the particle size is 10 to 30 μ, the first time is 100 mm in length.
× Horizontal 150 mm × Length 460 mm Sprayed on 7200 g of dry ice A and sprayed for 5 minutes, 333 g of ice with a particle size of 10 to 30 µ was obtained, and the weight of dry ice A was 6900 g. The through-hole 1 has a hole diameter of 60 mm, and the weight of the dry ice A was changed, and the second experiment was repeated. As a result, as shown in Table 3, some ice-making results were obtained.

【００１１】さらにまた、表４に示すように、ドライア
イスＡは４６cmの長さにして、圧力４kg／cm² がかかる
２流体ノズル式の噴出ノズル２ｂおよび１流体ノズル式
の噴出ノズル２ａにより、コーヒー等の各種原料を噴霧
量を変えて噴霧させながら製氷したところ、１流体ノズ
ル式の５００cc／分では中心部が氷で回りが水となる状
態になったが、表４に示したとおり、各種原料は同じ状
態にして製氷できる結果を得た。Furthermore, as shown in Table 4, the dry ice A has a length of 46 cm, and a two-fluid nozzle type jet nozzle 2b and a one-fluid nozzle type jet nozzle 2a which apply a pressure of 4 kg / cm ² When various types of raw materials such as coffee were sprayed while changing the spray rate, ice was produced at the center of the fluid and 500cc / min of the one-fluid nozzle type, but as shown in Table 4, Various raw materials were put in the same state and the result that ice making was possible was obtained.

【００１２】[0012]

【表１】 [Table 1]

【００１３】[0013]

【表２】 [Table 2]

【００１４】[0014]

【表３】 [Table 3]

【００１５】[0015]

【表４】 [Table 4]

【００１６】[0016]

【発明の効果】このように本発明は、原料を所定の圧力
で噴霧させながらドライアイス中の貫通孔内に吹き込ん
で効率良く微粒子状の氷を製造できることになり、とく
にドライアイスを使用することによって微粒子状の製氷
性能を一段と向上させることができることになり、これ
までの製氷装置の問題点となっていた微粒子氷を製造す
る際、製造装置壁面への附着がドライアイスの昇華作用
によりきわめて少ないという利点がある。また、液体窒
素などに比して安価となるドライアイスを使用し、（ち
なみに、ドライアイスは液体窒素に比べコストが約半分
である。）しかも、従来装置に比し、簡単な装置にして
コストの安い微粒子状の氷を製造できることになり、用
途に応じ各種の原料を有効に製氷することができて好適
に実施できる特長を有する。INDUSTRIAL APPLICABILITY As described above, according to the present invention, the raw material is sprayed at a predetermined pressure and blown into the through-holes in the dry ice to efficiently produce the particulate ice, and the dry ice is particularly used. The ice-making performance in the form of fine particles can be further improved, and when producing fine-grained ice, which has been a problem with conventional ice-making equipment, the adhesion to the wall surface of the production equipment is extremely small due to the sublimation action of dry ice. There is an advantage. In addition, dry ice, which is cheaper than liquid nitrogen, is used (By the way, dry ice costs about half compared to liquid nitrogen.) Moreover, the cost is reduced to a simpler device than the conventional device. Since it becomes possible to produce inexpensive ice in the form of fine particles, various raw materials can be effectively made into ice depending on the intended use, and the ice can be suitably implemented.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の実施例である要部を示した説明図であ
る。FIG. 1 is an explanatory diagram showing a main part that is an embodiment of the present invention.

【図２】本発明の他の実施例である要部を示した説明図
である。FIG. 2 is an explanatory diagram showing a main part of another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

Ａ ドライアイス １ 貫通孔 ２ａ 噴出ノズル ２ｂ 噴出ノズル １ａ 入口 A Dry ice 1 Through hole 2a Jet nozzle 2b Jet nozzle 1a Inlet

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 原料を所定の圧力で噴霧させながらドラ
イアイス中の貫通孔内に吹き込んで微粒子状の氷を製造
可能としたことを特徴とする微粒子状製氷方法。1. A fine-particle ice-making method, characterized in that fine-particle ice can be produced by blowing raw material into a through hole in dry ice while spraying the raw material at a predetermined pressure. 【請求項２】 原料の噴霧手段をドライアイス中の貫通
孔の入口に接近させて装備してなる微粒子状製氷装置。2. A fine particle ice-making device equipped with a means for spraying the raw material in close proximity to the inlet of a through hole in dry ice.