What is dry ice?
Dry ice, the fascinating white solid form of carbon dioxide (CO2), exists at a bone-chilling temperature of -78.5 ºC. Typically, it is condensed into a colorless liquid under a pressure of 62.50 bar and intriguingly transforms into a solid state through rapid cooling under lowered pressure.
Physical properties: A white crystalline marvel, dry ice sublimates effortlessly at room temperature, boasting a high heat of vaporization. This sublime transformation rapidly cools its surroundings, as it converts directly from solid to gas at atmospheric pressure, causing ambient moisture to condense and form visually stunning fog.
Dry ice, with its simple cubic crystal structure, is part of the fascinating world of molecular crystals. The striking visible white smoke emerges from the steam formed by water vapor droplets or tiny ice crystals attaching to airborne dust. This occurs as individual carbon dioxide molecules come together.
These molecules arrange themselves in a captivating pattern, stacking dry ice crystals at both the vertices and centers of each cube, creating an intricate lattice of cold elegance.
Chemical properties: Chemically stable, dry ice is an innovation in non-toxicity, odorlessness, and non-combustibility, making it a safe medium that does not support flames. However, beware-elevated carbon dioxide levels in the air can stimulate respiratory systems, accelerate breathing, and potentially lead to suffocation.
Carbon dioxide's remarkable thermal stability (with only a scant 1.8% decomposition at a blistering 2000 ºC) categorizes dry ice as an acidic oxide. It possesses all the properties of acidic oxides, eagerly reacting with water to form carbonic acid.
How is dry ice made?
The creation of dry ice is an intriguing process, where liquid carbon dioxide, sourced from a storage tank, is deftly sprayed into the ice-pressing chamber of a dry ice machine. As it passes through the nozzle, this liquid undergoes throttling, producing a gaseous release, and solidifying into delicate, snowflake-like dry ice solids.
Once a sufficient quantity accumulates, the hydraulic system springs to life. It compresses these ethereal snowflake shapes into robust dry ice cubes, which are then elegantly ejected from the die end. A rotating blade, in a final flourish, shatters the elongated dry ice column into smaller, manageable pieces.
These are ultimately sculpted into dry ice pellets of the desired length, ready to serve their purpose.
There are three main principles of dry ice cleaning:
Energy transfer: At high speed, dry ice pellets collide with the target surface, their kinetic energy dissipating upon impact. In a spectacular display of physics, the particles undergo rapid heat transfer, sublimating the carbon dioxide instantly, causing grime to cool, contract, and become brittle, ready to be effortlessly removed.
The debris is efficiently washed away, leaving a pristine surface behind.
Low temperature cracking: Different materials expand differently with temperature variations. Dry ice pellets, at a frosty -78.5 ºC, strike surfaces, freezing contaminants until they become brittle. This temperature-induced stress weakens bonds, causing the offending material to crack and break away.
Subsequently, the cracking leads to a fracturing effect, impacting the mechanical integrity of adhered substances, which then peel off, restoring the original surface.
Micro explosion: In an awe-inspiring phenomenon, dry ice particles infiltrate dirt fissures, sublimating in mere milliseconds. Their volume expands by 600-800 times, creating a micro-explosion that effectively detaches dirt from the surface.
Brief explanation of the industry application of dry ice cleaning
This ingenious cleaning method is revolutionizing the industry by effectively removing surface stains from metals, molds, production equipment, and even ancient cultural relics. The process requires no cooling or mold disassembly, protecting molds from corrosive or damaging chemical cleaning methods.
Unlike mechanical cleaning, which risks causing damage or scratches and decreases mold precision due to repetitive handling, dry ice cleaning preserves surface integrity. Here are some illustrative examples:
1.Petrochemical industry: Harness the transformative power of dry ice cleaning technology to effortlessly cleanse rust and dust from crucial equipment such as main fans, air compressors, exhaust fans, steam turbines, and blowers within petrochemical processes. Enjoy the unparalleled convenience of cleaning without blade removal, effectively eliminating the need for recalibration and ensuring dynamic leveling remains intact.
Seamlessly tackle the toughest challenges with dry ice cleaning, including the removal of coking from various heating furnaces and reactors. Effortlessly cleanse polyvinyl chloride resin from heat exchangers, and banish oil and rust stains from critical machinery like compressors, storage tanks, boilers, reactors, condensers, and complex machinery, ensuring optimal performance and longevity.
and dust-free, ensuring a pristine environment.
2.Power system: Experience unparalleled efficiency as dry ice cleaning directly targets and revitalizes indoor and outdoor transformers, insulators, distribution cabinets, wires, and cables, even with live loads below 37 kV. Delicately clean generators, motors, rotors, stators, and other components without inflicting any damage, maintaining optimal performance and reliability.
3.Food production: Elevate your standards with dry ice cleaning, which deftly removes baking residues, gelatinous substances, oil stains, and fresh product mixtures from ovens before baking. Achieve immaculate cleanliness in ovens, mixing and stirring equipment, conveyor belts, molded products, ensuring a seamless production process and impeccable hygiene.
Keep your packaging equipment, furnace racks, furnace plates, containers, rollers, refrigerator interiors, biscuit grates, and other essential equipment in pristine condition with dry ice cleaning.
4.Automotive and shipping industry: Revolutionize your cleaning process by effortlessly removing oil stains from car door covers, canopies, carriages, and bottoms without leaving water residues or causing pollution. Efficiently clean carburetors, strip paint from surfaces, and eliminate engine carbon deposits on vehicles and ships. Forget the long processing times and harmful chemicals, as dry ice cleaning resolves carbon deposition issues in a swift 10 minutes, achieving a 100% descaling rate, saving time and cutting costs.
Clean seafaring vessels with precision: hulls, seawater intake valves, condensers, heat exchangers, engine rooms, and all mechanical and electrical equipment are revitalized with ease.
Ensure ultimate cleanliness for the hull, seawater intake valve, seawater condenser, heat exchanger, engine room, mechanical and electrical equipment, and more with dry ice cleaning.
5.Aerospace field: Propel your operations to new heights with dry ice cleaning during pre-production processes for missile and aircraft painting and final assembly. Seamlessly remove paint from composite molds and special aircraft with precision, clean engine carbon deposits, maintain areas like landing gear wheel compartments, and efficiently strip paint from aircraft shells. The jet engine conversion system allows for direct, time-saving work on the body.
Effortlessly manage jet engine conversions, working directly on the body and saving valuable time.
6.Printing industry: Enhance the quality of your printed products by removing various oil-based and water-based inks, varnishes, oil stains, ink deposits, and dyes from gears, rails, and nozzles with dry ice cleaning. This innovative approach not only ensures impeccable quality but also preserves the integrity of your printing equipment.
Keep your printing equipment in pristine condition and free from wear with dry ice cleaning.
Cultural relic cleaning: Embrace the future of cultural relic preservation with dry ice cleaning technology that meticulously and safely removes pollutants like soil, soluble salts, mold, and sedimentary films from the surface of cultural relics. This cutting-edge method surpasses traditional cleaning techniques by enhancing efficiency and quality while being kinder to the environment and the health of workers.
Elevate your cleaning standards with higher efficiency, superior quality, and a commitment to environmental and worker health.
Explore the cutting-edge cleaning method and working principle of CHIRUI's pellet dry ice cleaning.
Similar to blasting with steel sand, glass sand, plastic sand, and baking soda, the dry ice blasting process accelerates dry ice particles through high-pressure airflow to impact and clean surfaces. Experience the transformative power of dry ice cleaning.
The true uniqueness lies in the dry ice particles vaporizing upon impact. At that moment, the momentum of the particles vanishes, allowing rapid heat exchange with the surface, resulting in an effective cleaning process.
Witness the astonishing sublimation of solid CO2 into gas, as dry ice particles expand approximately 800 times in volume within milliseconds, creating a 'micro explosion' at the impact point, showcasing the unparalleled effectiveness and innovation of dry ice cleaning with CO2's volatility.
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| 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 |
Audited Supplier 
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