Small dry ice pellet making machine

In life, dry granules are used in tire companies, printing companies, engine repair companies, and other industries, mainly for dry ice blast cleaning, and also for a wide range of applications in the refrigerated transport, catering and entertainment industries, but many friends, However, it is not necessarily know how the dry ice is made. The following small dry ice machine is a brief introduction for everyone:

First of all, the concept of dry ice is needed. At room temperature, when the carbon dioxide gas is pressurized to about 101,325 Pa when a part of the vapor is cooled to about -56 ° C, it is frozen into a snow-flaked solid carbon dioxide. Solidified carbon dioxide has a large heat of vaporization, which is 364.5 J/g at -60 ° C. When gasified under normal pressure, the ambient temperature can be lowered to about -78 ° C, and no liquid is produced, so it is called "dry ice".

The dry ice medium used in dry ice blast cleaning is a dry ice granule produced by a dry ice pelletizer. These dry ice granules can be used immediately or stored in an incubator for later use. These particles are typically 3 mm in diameter and 2.5 mm to 10 mm in length. In this way, the high-pressure liquid CO2 is ejected from the pipe and converted into a snow-like solid CO2, and the snow-like CO2 is extruded into dry ice particles by a mold pressure.

Granular dry ice is a by-product of industrial processes, such as fermentation processes and petroleum refining processes, which produce by-product CO2. The CO2 produced in these production processes is purified, hydraulically and stored, and dry ice is produced for cleaning. When the CO2 sublimate is discharged into the atmosphere during the injection process, no new CO2 is produced, but the original CO2 by-products are discharged. It realizes the reuse of exhaust gas CO2 for the benefit of mankind.