Dry Ice Cleaning: innovative cleaning process

Dry Ice Cleaning is an innovative process and form of carbon dioxide purification. You can use dry ice and compressed air flow to clean or clean surfaces. Dry ice is the solid form of carbon dioxide. The process is similar to plastic bead blasting and sand blasting or soda blasting. However, the surface is effectively cleaned with the accelerated material (dry ice pellets) along with the compressed air flow. The abrasive is dry ice in this method.

Odorless and non-toxic: Dry Ice Cleaning

The method of Dry Ice Cleaning is odorless and non-toxic. Because the CO2 (carbon dioxide) in solidified form is a non-toxic gas that you do not smell. Also in the beverage industry it is added to the mineral water or the beer, so that the taste remains fresh for a long time and the durability is changed. The food industry uses it as well and the aircraft industry. It is used here for cooling sausages and meat. Dry Ice Cleaning uses dry ice. This occurs when liquid carbon dioxide is passed through a tank in a special machine (pelletizer) and relaxed there. Then the necessary dry ice is created. This medium is pressed at minus 78 degrees Celsius then by a template. The result then the dry ice pellets, which are about the size of a rice grain.

Remove dirt, grease and varnish

Dry ice blasting can be used, among other things, to remove dirt, grease or varnish and other coatings on all surfaces. A big advantage is that Dry Ice Cleaning completely sublimes the dry ice pellets after blasting. This dry ice cleaning method is used industrially as an effective method. Only the removed dirt remains. The waste is so much less and it also saves time. The operating principle of dry ice blasting is simple. With the dry ice blasting machines, the dry ice pellets accelerate to about 1000 km / h. That’s the speed of sound. This is blasted onto the work piece to be cleaned. The physical factors are important for the effect of the process.

Fascinating cleaning method

This fascinating cleaning method will be used with increasing awareness of modern technology in ever new applications. It has become established in many industries. For example, in the aircraft industry or in the food industry. Automated dry ice blasting is also becoming increasingly popular. You always want clean surfaces? This is especially important in the manufacturing industry. This also plays an important role in the automotive industry and in the aircraft industry. Everything should not be clean, but very clean. The surface quality requirements are increasing. They must be free of grease and without fingerprints and micro particles before they are generally coated. However, dry ice blasting systems and techniques are also used in medical technology and micro technology. Dry Ice Cleaning is becoming increasingly popular within the industry.

Dry Ice Cleaning from White Lion

Dry Ice Blasting – Surface cleaning with dry ice

Usually water is used to clean things, but not every object is allowed to get wet, and water is not abundant everywhere. So it is well known that in the desert sand instead of water used for cleaning. Similarly, especially in construction, the technique of sandblasting is used to clean or decorate surfaces. In Germany, however, this is prohibited. That is why in this country usually the gentler Dry Ice Blasting is used. But what does Dry Ice Blasting actually mean and what are its benefits?

The term Dry Ice Blasting

Dry Ice Blasting is once again one of those annoying English technical terms. Dry means dry. As already mentioned above, Dry Ice Blasting does not use water, but does not use any other liquid. Ice is called ice cream and yes, we are talking about dry ice or, more precisely, dry ice in German, which is used instead of the sand when sandblasting. Blasting is the act of blasting where something, in our case the dry ice, is blown at high pressure on a target, like the surface to be cleaned. Dry Ice Blasting can be translated as dry ice blasting and that is actually the correct German term for it.

dry ice

But what is dry ice? Usually, when we hear the word ice, we think of frozen water. The water ice represents the solid form of the water and is therefore as dry as water can be. However, as soon as the ambient temperature reaches and exceeds 0 ° C, the water begins to liquefy and becomes wet. The so-called dry ice is also a solid form, namely the carbon dioxide. Carbon dioxide does not have the habit of melting like water, but of sublimating. This means that it goes directly from the solid to the gaseous state without becoming liquid in between. So it always stays dry. However, the aggregate state transition already occurs at -78.48 ° C, a temperature that we do not experience on Earth under natural circumstances.

The benefits of Dry Ice Blasting

So why use surface treatment as much as dry ice when it comes to sand? In fact, other substances than sand and dry ice are used for blasting. However, sandblasting was the first beam technique invented and sand is relatively easy to obtain and operate. However, fine fumed silica is blown into the air which, if it is inhaled too often, can lead to silicosis, the so-called pneumoconiosis. Carbon dioxide, on the other hand, is a natural component of the air and the metabolic product of our breathing. With sufficient presence of oxygen, it is safe. In addition, the Dry Ice Blasting dry ice pellets are softer and thus gentler for the irradiated material.