Generally, the price in dry ice cleaning machine is about 35,000 to 80,000 yuan, and there are several thousand units.

Cleaning method:

Similar to steel sand blasting, glass sand blasting, plastic sand blasting and soda blasting, dry ice particles of dry ice blasting media accelerate in high-pressure airflow and impact the surface to be cleaned. The uniqueness of dry ice cleaning is that dry ice particles vaporize at the moment of impact.

The momentum of dry ice particles disappears at the moment of impact. Heat exchange occurs rapidly between dry ice particles and the cleaning surface. So that solid CO2 quickly sublimates into gas. Dry ice particles expand by nearly 800 times in a few thousandths of a second, thus causing a "micro-explosion" at the impact point. Because CO2 volatilizes, the dry ice cleaning process does not produce any secondary waste, leaving only the dirt that needs to be collected and cleaned.

Like other blasting media, the momentum of dry ice particles depends on their mass and speed. Because the density of dry ice is relatively low, the required impact energy mainly depends on the speed of dry ice particles.

Unlike other blasting media, the temperature of dry ice particles is extremely low (-78℃). Such low temperature makes dry ice cleaning have unique thermodynamic properties, which affects the mechanical properties of adhering dirt.

Due to the temperature difference between dry ice particles and the cleaning surface, thermal shock occurs. The temperature of the material decreases and the brittleness increases, and dry ice particles can impact and break the dirt layer.

Extended data:

Dry ice cleaning machine has six advantages over other cleaning methods:

1, saving costs Because carbon dioxide is a component of the atmosphere, it is very convenient to take and cheap. The power consumption equipment is only the air compressor, and the dry ice is directly volatilized during the cleaning process, so there is no cost for cleaning the cleaning medium.

2. The dry cleaning process is different from steam and high-pressure water cleaning, and dry ice cleaning has no damage to wires, control elements and switches. After cleaning, the possibility of equipment rusting is also greatly reduced compared with water cleaning. In the application of food industry, dry ice cleaning greatly reduces the possibility of bacterial growth compared with water cleaning. 　

3. Environmental Safety CO2 is a non-toxic substance, which meets the safety requirements of the US Department of Agriculture (USDA), Food and Drug Administration (FDA) and Environmental Protection Agency (EPA). Using dry ice cleaning instead of toxic chemicals cleaning, employees can fundamentally avoid the violation of chemicals. Because CO2 is heavier than air, it is necessary to ensure ventilation and pay attention to safety when operating dry ice cleaning in closed space or sinking parts.

4. Extend the service life of the equipment. Unlike sand particles, walnut shells, plastic particles and other abrasive media, dry ice particles are not abrasive. Dry ice cleaning does not damage the mold, does not damage the tolerance, and does not damage the bearing and machinery. In addition, on-line cleaning avoids accidental damage in the process of mold disassembly.

5. Efficient dry ice cleaning can be carried out on-line cleaning, which greatly reduces the parking time, avoids the shielding, cooling, disassembly and treatment of sewage and dirty sand required by traditional methods, and saves the drying time, thus having high production efficiency and less time consumption.

6. Wide application range For different cleaning conditions, as long as different dry ice cleaning nozzles are replaced, the cleaning working distance can be improved to meet different needs, and the operation is simple, safe, low in cost and considerable in comprehensive benefits.