What is dry ice?
Dry ice is a pristine white solid form of carbon dioxide (CO2) that exists at a chilling -78.5 ºC. Typically, it is derived from a colorless liquid that condenses under a high pressure of 62.50 bar and is swiftly transformed into a solid state through a precise process of throttling and depressurization.
Physical Properties: As a white crystalline substance, dry ice sublimates rapidly at room temperature, boasting a high heat of vaporization. This characteristic allows it to significantly decrease ambient temperatures when it sublimates in atmospheric conditions. During this process, it can cause water vapor in the air to condense and even further solidify.
The ethereal 'steam' you see is composed of water vapor droplets or tiny ice crystals clinging to dust in the air, creating the visible white smoke. Dry ice's cubic crystal structure is simple yet elegant, and it forms part of molecular crystals, consisting of individual carbon dioxide molecules.
These dry ice crystals are meticulously arranged, stacking in diverse orientations at both vertices and centers of the cube, creating a unique structural formation.
Chemical Properties: Dry ice is renowned for its chemical stability-it is odorless, non-toxic, non-flammable, and does not support combustion. However, elevated carbon dioxide levels in the air can irritate the respiratory system, potentially accelerating breathing and posing a risk of suffocation.
This condition, known as hypoxia, highlights the importance of ventilation. Carbon dioxide exhibits remarkable thermal stability, with only 1.8% decomposition at a scorching 2000 ºC. As an acidic oxide, it reacts with water to yield carbonic acid, showcasing its versatile chemical nature.
How is dry ice made?
In the dry ice production process, liquid carbon dioxide is drawn from a storage tank and injected into the ice chamber within the dry ice machine. The rapid throttling through a nozzle generates a large volume of gas, creating carbon dioxide snowflakes that form solid dry ice.
Once a sufficient amount accumulates, the state-of-the-art hydraulic system springs into action, compressing these snowflake-shaped dry ices into solid blocks. These are then ejected from the machine's die end, where a rotating blade shatters them into smaller, manageable pieces.
Resulting in dry ice pellets of the desired length, precisely tailored for various applications and needs.
There are three main principles of dry ice cleaning:
1. Energy Transfer: At high velocity, dry ice particles make contact with surfaces, depleting kinetic energy through impact. The rapid heat transfer causes the dry ice to sublime instantly. This sudden cooling and contracting of dirt make it brittle and easily removable.
Leaving surfaces impeccably clean as the dirt is washed away.
2. Low Temperature Cracking: With differing thermal expansion coefficients, the temperature variance between materials fractures the bond between them. Dry ice pellets at -78.5 ºC freeze contaminants until they are brittle.
Subsequently, this causes cracks that degrade the mechanical integrity of the attached grime, facilitating its removal.
3. Micro Explosion: When dry ice particles penetrate dirt crevices, they sublimate in milliseconds, expanding 600-800 times in volume. This explosive growth detaches dirt effortlessly from the object's surface.
Brief Explanation of the Industry Application of Dry Ice Cleaning
Dry ice cleaning is an innovative solution used widely across industries to tackle stubborn stains on metals, molds, production equipment, and even ancient artifacts. Its non-invasive approach requires no cooling or mold disassembly, thus preserving integrity and preventing chemical corrosion.
Unlike mechanical cleaning, which can induce physical damage, scratches, or degrade mold precision from repetitive handling, dry ice cleaning offers a superior alternative. Here are some examples:
1.Petrochemical Industry: Our cutting-edge dry ice cleaning technology is revolutionizing the way equipment such as main fans, air compressors, exhaust fans, steam turbines, and blowers are maintained in the petrochemical process. Say goodbye to rust and dust without the hassle of disassembling blades, and eliminate the need for recalibration, ensuring optimal dynamic leveling and efficiency.
Experience seamless operations with our advanced cleaning solutions! We expertly tackle the challenges of coking removal in various heating furnaces and reactors. Our technology is designed to clean polyvinyl chloride resin on heat exchangers with ease. Plus, effortlessly eliminate oil and rust stains from intricate equipment like compressors, storage tanks, boilers, reactors, condensers, and more. Enjoy a flawless, spotless finish every time.
dust-free operations every time!
2.Power System: Our innovative dry ice cleaning methods provide non-invasive, effective cleaning for both indoor and outdoor transformers, insulators, distribution cabinets, wires, and cables, even with live load (below 37 kV). Delicate components like generators, motors, rotors, and stators are meticulously cleaned without any damage, extending their lifespan and optimizing functionality.
3.Food Production: Elevate your cleaning standards with dry ice technology. Effortlessly remove baking residue, gelatinous substances, and oil stains, ensuring your ovens, mixing and stirring equipment, and conveyor belts are spotless before the next batch. Ideal for molded products, our system guarantees an immaculate workspace, enhancing both hygiene and product quality.
Achieve pristine cleanliness in packaging equipment, furnace racks, containers, rollers, and more. Even hard-to-reach areas like the inner walls of refrigerators and biscuit grates are no match for our dry ice cleaning prowess.
4.Automotive and Shipping Industry: Transform your cleaning process with our water-free solution. Dry ice effectively removes car door cover grime, canopy dirt, and bottom oil stains without leaving any water residue or causing pollution. Effortlessly clean carburetors, strip paint from surfaces, and eliminate carbon deposits from engines in both vehicles and ships.
The traditional long processing times and harmful chemicals are now a thing of the past. Experience rapid results within 10 minutes, with a stunning 100% descaling efficacy. Save precious time and cut down on costs, improving both productivity and safety.
Ensure your marine equipment is in top shape; clean hulls, seawater intake valves, seawater condensers, heat exchangers, engine rooms, and more with unprecedented efficiency.
5.Aerospace Field: Precision is paramount in aerospace, and our dry ice cleaning technology is here to support that. Perfect for pre-production processes like missile and aircraft painting and final assembly, it excels in removing paint from composite molds and special aircraft. It also tackles engine carbon cleaning and essential maintenance tasks, such as in the landing gear wheel compartment area.
Our system works directly on the aircraft body, streamlining operations and saving invaluable time, particularly vital for jet engine conversion systems.
6.Printing Industry: Ensure superior print quality with our efficient dry ice cleaning system. It expertly removes oil-based and water-based inks, varnishes, and dyes from gears, rails, and nozzles, preserving the integrity of your printed products without causing wear and tear on printing equipment.
Rest easy knowing that your printing equipment stays in pristine condition, enhancing longevity and performance.
Cultural Relic Cleaning: Our dry ice cleaning technology provides a groundbreaking, non-destructive solution for the delicate task of cleaning cultural relics. It efficiently removes pollutants like soil, soluble salts, mold, and sedimentary films with precision. Compared to traditional methods, it not only boosts cleaning efficiency but also promotes ecological sustainability and worker safety.
Achieve unparalleled cleaning quality that is both environmentally supportive and considerate of worker health.
Cleaning Method and Working Principle of CHIRUI Pellet Dry Ice Cleaning
Our unique technology works similarly to sandblasting with steel sand, glass sand, plastic sand, or baking soda. The dry ice blasting medium propels particles accelerated by high-pressure air towards the surface to be cleaned. What sets dry ice cleaning apart is
that the dry ice particles vaporize instantly upon impact, causing a significant momentum shift. This rapid heat exchange between the dry ice particles and the cleaning surface
leads to solid CO2 sublimating quickly into gas. This causes the dry ice particles to expand nearly 800 times in volume within milliseconds, resulting in a 'micro explosion' at the impact point. Thanks to the volatility of CO2,
50ccdaec
| 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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