What is Dry Ice?: Dry ice is the solid form of carbon dioxide (CO2), offering unique properties that make it a versatile cleaning agent. Its cool touch and sublimation ability set it apart from conventional cleaning methods.
Dry Ice: This remarkable white solid carbon dioxide (CO2) exists at an incredible -78.5 ºC. Typically, it starts as a colorless liquid under the high pressure of 62.50 bar, then transitions directly to a solid state when pressure is reduced, creating a unique cleaning medium.
Physical Properties: With its pure white crystalline form, dry ice sublimates swiftly at room temperature. Its high heat of vaporization allows it to cool surrounding areas rapidly, even condensing moisture from the air to augment its cleaning efficacy.
The visible steam, resulting from water vapor or ice crystals mingling with airborne dust, is a striking feature. Dry ice's simple cubic molecular crystal structure, comprised of individual carbon dioxide molecules, lends itself to various innovative uses.
The dry ice crystal structure is ingeniously designed, with crystals stacked meticulously in diverse orientations, both at the cube's vertices and its centers, enhancing its cleaning prowess.
Chemical Properties: Dry ice is known for its chemical stability, being odorless and non-toxic. While it doesn't support combustion, excessive carbon dioxide in the air can impact the respiratory system, causing accelerated breathing and hypoxic conditions due to suffocation risks.
Carbon dioxide is noted for its high thermal stability, with only minimal decomposition at 2000 ºC. As an acidic oxide, dry ice interacts with water to form carbonic acid, expanding its application potential in various industries.
How is Dry Ice Made?: The process starts with liquid carbon dioxide extracted from a storage tank, transforming into spectacular snowflake-like dry ice solids through a nozzle-induced gas release.
As liquid CO2 is funneled into the dry ice machine, it undergoes a dramatic transformation. The nozzle's throttling action separates gas from solid, creating a dazzling snowfall of dry ice. Accumulations are then compacted by the machine's hydraulic system.
Once a sufficient quantity of solid dry ice forms, the hydraulic system compresses these snowflakes into solid cubes, pushing them through the die end. At this juncture, a rotating blade segments elongated dry ice into manageable pieces.
Resulting in precisely measured dry ice pellets, tailored to meet specific cleaning requirements with precision and ease.
There are Three Main Principles of Dry Ice Cleaning: Understanding these foundational principles reveals why dry ice is a game-changer in the cleaning industry.
Energy Transfer: By propelling dry ice at high speeds onto surfaces, an energy exchange occurs. The kinetic impact coupled with rapid thermal transfer ensures swift sublimation of CO2, resulting in cold-induced brittleness and dirt removal.
This ingenious process ensures that stubborn dirt is effectively dislodged and washed away, leaving surfaces immaculate.
Low Temperature Cracking: The interplay between differing thermal expansion coefficients of materials disrupts their bond. This process leverages dry ice's extreme cold to freeze dirt, inducing brittleness and enabling detachment.
The subsequent 'cracking' phenomenon undermines dirt's structural integrity, facilitating effortless removal without damaging the underlying material.
Micro Explosion: As dry ice infiltrates dirt, it rapidly sublimates, expanding up to 800 times its volume. This rapid expansion effectively lifts and separates dirt from the object's surface.
Industry Application: Dry Ice Cleaning's Revolutionary Approach: This method's versatility extends to metal, molds, production equipment, and cultural relics, ensuring effective cleaning without the drawbacks of chemical corrosion.
Its application avoids the pitfalls associated with traditional methods, such as chemical corrosion and mold damage. Dry ice cleaning preserves the integrity of surfaces, safeguarding against mechanical damage and maintaining precision.
Unlike mechanical methods, dry ice cleaning eradicates risks of surface scratches and maintains mold accuracy. Here are some exemplary uses of this groundbreaking technique:
1.Petrochemical industry: Dry ice cleaning technology revolutionizes maintenance, offering a state-of-the-art solution for removing rust and dust from a vast array of equipment. This includes main fans, air compressors, exhaust fans, steam turbines, and blowers integral to the petrochemical process. The standout feature? No blade removal is necessary, thus eliminating recalibration for dynamic leveling, which significantly enhances operational efficiency and reduces downtime.
Weighing steps); Expertly removes coking and deposits in various heating furnaces and reactors; Cleans polyvinyl chloride resin build-up on heat exchangers with ease; Effortlessly erases oil and rust stains from compressors, storage tanks, boilers, reactors, condensers, and intricate machinery, ensuring peak performance and longevity.
And dust;
2.Power system: Embrace the future of maintenance with the ability to directly clean indoor and outdoor transformers, insulators, distribution cabinets, wires, and cables with live load (below 37 kV). This cutting-edge technology ensures the comprehensive cleaning of generators, motors, rotors, stators and other components without causing any damage, guaranteeing uninterrupted power supply and system integrity.
3.Food production: Harness the power of dry ice cleaning to eliminate baking residue, gelatinous substances, oil stains, and fresh product mixtures before baking, ensuring pristine ovens and equipment. This includes exemplary cleaning of ovens, mixing and stirring equipment, conveyor belts, and molded products, setting new standards in food safety and quality.
Packaging equipment, furnace racks, furnace plates, containers, rollers, inner walls of refrigerators, biscuit grates and other equipment;
4.Automotive and shipping industry: Achieve unrivaled cleanliness by effortlessly cleaning car door covers, canopies, carriages, and bottom oil stains, all without leaving water residue or causing pollution. Revolutionize maintenance by cleaning carburetors, removing paint from car surfaces, and eliminating engine carbon deposits on vehicles and ships, all without harmful chemicals.
This innovative method drastically cuts processing time, achieving complete carbon deposit removal within a mere 10 minutes. This not only saves invaluable time but also slashes costs, boasting a descaling rate of up to 100%.
Clean the hull, seawater intake valve, seawater condenser and heat exchanger, engine room, mechanical and electrical equipment, etc;
5.Aerospace field: Excelling in pre-production processes for missile and aircraft painting and final assembly, dry ice cleaning is pivotal for paint removal on composite molds and specialized aircraft. It effectively cleans engine carbon and maintains the equipment, particularly in the landing gear wheel compartment, without delay. The paint removal of aircraft shells is achieved with expertise, optimizing maintenance schedules.
Jet engine conversion system. Can work directly on the body, saving time;
6.Printing industry: With dry ice cleaning, effortlessly remove both oil-based and water-based inks and varnishes. This method ensures thorough cleaning of oil stains, ink deposits, and dyes on gears, rails, and nozzles, safeguarding the quality of printed products, while prolonging the lifespan of printing equipment.
Printing equipment is not worn out.
Cultural relic cleaning: Dry ice cleaning technology provides an innovative solution for the efficient and non-destructive cleaning of pollutants such as soil, soluble salts, mold, and sedimentary films on cultural relic specimens. This method surpasses traditional physical and chemical cleaning methods by improving cleaning efficiency and quality, while being environmentally friendly and promoting the health and safety of workers.
Cleaning efficiency and quality are also more friendly to the environment and the health of workers.
Cleaning method and working principle of CHIRUI pellet dry ice cleaning
Similar to the dynamics of blasting with steel sand, glass sand, plastic sand, and baking soda, the dry ice blasting medium accelerates dry ice particles in high-pressure airflow to impact the target surface. Dry ice cleaning stands out due to its unique properties.
Its uniqueness lies in the vaporization of dry ice particles upon impact, causing the momentum of the particles to dissipate instantly. A swift heat exchange initiates between the dry ice and the cleaning surface, triggering a groundbreaking cleaning process.
Solid CO2 quickly sublimates into gas, expanding nearly 800 times in volume within milliseconds, creating a 'micro explosion' at the impact point. This explosive expansion, driven by CO2 volatility, revolutionizes the cleaning capability.
a5b483ec
| Model |
GT05 |
GT10 |
| Compressed air flow rate |
> 1.1³ /min |
> 2.5³ /min |
| air supply pressure |
0.4-1.0Mpa |
0.6-1.0Mpa |
| Dry ice blasting rate |
0-0.5KG/min |
0-1.0KG/min |
| Dry ice capacity |
5-7.5KG |
12-15KG |
| Dry ice state |
3mm granular |
3mm granular |
| Motor power |
0.37kw |
0.37kw |
| Dimensions (L x W x H) |
512 * 643 * 800 (mm) |
650 * 693 * 900 (mm) |
| Equipment weight |
65KG |
80KG |
| Power supply equipped with |
AC220V/50HZ |
AC220V/50HZ |
| Standard accessory 1 (air connection pipe) |
8m Φ 12mm compressed |
8m Φ 12mm compressed |
| Standard accessory 2 |
Gun handle |
Gun handle |
| Standard accessory 3 |
straight nozzle |
straight nozzle |
){kind=link}