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Technical method for preparing crystal dry ice

A process method and dry ice technology, applied in chemical instruments and methods, refrigeration and liquefaction, inorganic chemistry, etc., can solve the problems of low productivity, large expansion volume, high maintenance costs, etc., and achieve crystal clear and transparent color, simple process method, and volatile long time effect

Inactive Publication Date: 2006-06-28
巴德纯 +2
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Problems solved by technology

[0002] At present, liquid dry ice is widely used in medical and beverage enterprises. The main production method is produced by special machinery. This kind of machinery includes an expander that can expand liquid carbon dioxide into snowflake-like carbon dioxide, and then puff the expanded snow. The dry ice is pressed into different shapes by a press. The disadvantages of this mechanical production process are that the expansion volume is large, the equipment maintenance costs are high, the one-time investment is large, and the production efficiency of dry ice is low. This production process of puffed snow-like dry ice makes it difficult To realize the continuity and automation of dry ice production, the productivity is low, the work is unstable, and the quality of dry ice cannot be guaranteed

Method used

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  • Technical method for preparing crystal dry ice

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Embodiment Construction

[0014] According to above process method concrete implementation is as follows:

[0015] 1. Inject an appropriate amount of carbon dioxide liquid into the container of the dry ice maker;

[0016] 2. Put it in the container of this refrigerator for pre-cooling, and place it in the environment with a temperature of -20°C for 20 minutes;

[0017] 3. The pre-cooled carbon dioxide is forced to refrigerate, the cooling temperature is -100°C, and the refrigerating time is 25 minutes. According to the amount of raw materials, the time is slightly changed;

[0018] 4. Crystal dry ice has been made in the container after cooling;

[0019] 5. The prepared crystal dry ice can be demolded after a little heating, and it is a kind of crystal dry ice with high density;

[0020] Put this dry ice into the beverage to form a cold mist on the surface of the beverage, increasing the coolness and taste of the beverage.

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Abstract

This method is: first put carbon dioxide into a container, then put the container into cooling room to do initial cold pretreatment, the cooling temp, is -10 to -20 deg.C, the cooling time is 10-20 minutes. Then put the container into forced cooling room to do forced cooling, the cooling temp. is -80 to -120 deg.C, the cooling time is 10 to 20 minutes, crystalline dry ice is produced. Finally put the crystalline dry ice into a stripper to do demoulding, thus the crystal dry ice is obtained. The advantages are the dry ice has high density, good compactness, long volatilize time and sparkling and crystal-clear colour.

Description

technical field [0001] The invention relates to a method for preparing dry ice, which is suitable for preparing crystal dry ice. Background technique [0002] At present, liquid dry ice is widely used in medical and beverage enterprises. The main production method is produced by special machinery. This kind of machinery includes an expander that can expand liquid carbon dioxide into snowflake-like carbon dioxide, and then puff the expanded snow. The dry ice is pressed into different shapes by a press. The disadvantages of this mechanical production process are that the expansion volume is large, the equipment maintenance costs are high, the one-time investment is large, and the production efficiency of dry ice is low. This production process of puffed snow-like dry ice makes it difficult To realize the continuity and automation of dry ice production, the productivity is low, the work is unstable, and the quality of dry ice cannot be guaranteed. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/22F25J1/00C01B32/55
Inventor 巴德纯冯东成庄乾云
Owner 巴德纯
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