Dry ice cleaning machine, as a type of cleaning machine, has been developed very rapidly. The cleaning system in dry ice cleaning can use high-pressure air to spray dry ice particles in dry ice cleaning to areas that need to be cleaned. supplies surface. Then use the physical reaction of temperature difference to make different substances detach at different shrinkage speeds, and when the dry ice particles reaching -78°C come into contact with dirt, they will become embrittled, causing the dirt to shrink rapidly and When shedding occurs, the dry ice particles will instantly gasify, and can expand 800 times to generate a strong peeling force, which can quickly peel off the dirt from the surface of the object, which can achieve a safe, fast and energy-saving cleaning effect.

        The carbon dioxide used by dry ice cleaning machine often comes from industrial waste gas, high-altitude air separation, etc. Dry ice cleaning machine itself cannot produce carbon dioxide. Next, I will talk to you about dry ice cleaning machine. Where is the advantage of the cleaning method.

        When spraying glass sand, sandblasting plastic yarn and plastic spraying similar to dry ice in dry ice cleaning, when spraying, the medium dry ice particles can be accelerated in the airflow at a higher pressure, and then impact the surface of the object to be cleaned, Dry The unique feature of ice cleaning machine using dry ice cleaning is that the dry ice particles can gasify instantly after the impact. At this time, the kinetic energy of the dry ice particles will disappear at the moment of impact, and the dry ice particles can be quickly separated from the surface of the cleaning object. Complete a heat exchange process, causing the solid carbon dioxide to quickly vaporize and turn into a gas, while dry ice can expand its volume by 800 times within a few thousandths of a second, so that it can cause an expansion at the point of impact The effect due to carbon dioxide in. It has evaporated, so after dry ice cleaning, no secondary waste is produced during the whole process, leaving only the dirt that needs to be cleaned from the surface of the object.

        Like other blasting media, the momentum of dry ice particles depends on their mass and velocity. Due to the relatively low density of dry ice, the impact energy required to achieve this depends mainly on the velocity of the dry ice particles. Unlike other blasting media, dry ice pellets are extremely cold (-78°C). Such low temperatures give dry ice blasting unique thermodynamic properties that affect the mechanical properties of adhered dirt. Thermal shock occurs due to the temperature difference between the dry ice pellets and the surface being cleaned. The temperature of the material decreases and the brittleness increases, and the dry ice particles can impact and break the dirt layer.

        After reading this article, I wonder if all the readers here have fully understood the working principle and cleaning method of Dry ice cleaning machine?

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Xiamen Hefengli Dry Ice Decontamination Equipment Co., Ltd., referred to as Hefengli Dry Ice, was established in 1999. It is a professional enterprise dedicated to the application of dry ice in China. It has formed a complete industrial chain of R&D, manufacturing, sales and after-sales. The company's brand is HORECO2, and Hefengli has a doctoral-level R&D team. Its main products include Dry ice granulator & block making machine, Dry ice cleaning machine, dry ice automatic production line, dry ice intelligent cleaning, supply of dry ice of various specifications, dry ice Cleaning service and leasing, Dry ice insulation box, dry ice equipment accessories and related intelligent products; 18 dry ice manufacturing factories have been deployed to provide a complete dry ice distribution service network and provide customers with a cost-effective experience.