What is dry ice?
Discover the marvel of dry ice - a pristine white solid form of carbon dioxide (CO2) that exists at a chilly -78.5 ºC. Typically transformed into a colorless liquid under a significant 62.50 bar pressure, this substance is rapidly solidified through a process of throttling and depressurization at low pressures.
Physical properties: This fascinating white crystal is known for sublimating effortlessly at room temperature, boasting a high heat of vaporization. When dry ice sublimates at atmospheric pressure, it rapidly decreases temperature, causing moisture in the air to liquefy and even condense further.
The enchanting spectacle of steam, formed by tiny droplets of water vapor or small ice crystals attaching themselves to dust in the air, creates the mesmerizing white smoke visible to the naked eye. The simple cubic crystal structure of dry ice, a type of molecular crystal, is formed by individual carbon dioxide molecules.
In this intriguing molecular dance, dry ice crystals align themselves in different orientations at the vertices and centers of a cube, creating a robust and symmetrical structure.
Chemical properties: Dry ice stands out for its exceptional chemical stability. It is odorless, non-toxic, non-flammable, and does not support combustion. However, excessive carbon dioxide in the air can irritate the respiratory system, causing faster breathing and potential suffocation.
Such hypoxic conditions arise due to carbon dioxide's impressive thermal stability, with only 1.8% decomposing at a scorching 2000 ºC. As an acidic oxide, dry ice reacts with water to form carbonic acid, exemplifying its acidic oxide characteristics.
How is dry ice made?
The creation of dry ice begins with extracting liquid carbon dioxide from its storage tank, which is then sprayed into the dry ice machine's ice pressing chamber. As it passes through the nozzle, a vast quantity of gas and snowflake-like dry ice solids form, showcasing a remarkable transformation.
Once a predetermined amount of solid dry ice has accumulated, the hydraulic system springs into action. A piston compresses the snowflake-like dry ice into sturdy cubes, which are extruded through the die end. At this stage, a rotating blade is activated, breaking the elongated dry ice column into smaller, manageable pieces.
These pieces are then formed into dry ice pellets of the desired length, ready for use.
There are three main principles of dry ice cleaning:
Energy transfer: Dry ice impacts the target surface with high velocity, efficiently converting kinetic energy. Upon contact, dry ice particles undergo rapid heat transfer with the surface, causing instant sublimation of carbon dioxide. This results in the dirt quickly cooling, contracting, and becoming brittle.
Resulting in the dirt being effectively dislodged.
Low temperature cracking: When two materials possess different thermal expansion coefficients, the temperature difference between them disrupts their bond. Dry ice pellets, at a frigid -78.5 ºC, strike the target surface, freezing the dirt until it turns brittle.
This leads to melting and bursting, creating 'cracks' that compromise the mechanical properties of the dirt, ultimately causing it to detach from the surface.
Micro explosion: Once dry ice particles penetrate the cracks in the dirt, they sublimate within milliseconds, expanding in volume by an astonishing 600-800 times, effectively peeling away the dirt from the object's surface.
Brief explanation of the industry application of dry ice cleaning
Dry ice cleaning is a versatile solution employed across various industries for removing surface stains from metal, molds, production equipment, and even ancient cultural relics. This process eliminates the need for cooling or disassembling molds, preventing corrosion and damage that chemical cleaning methods might inflict.
In contrast, conventional mechanical cleaning methods may lead to damage, such as scratches or reduced mold accuracy, due to repeated handling. Below are some notable examples:
1.Petrochemical Industry: Embrace innovation with our Dry Ice Cleaning Technology, meticulously designed to rejuvenate and cleanse the most vital equipment in your petrochemical processes. Effortlessly remove rust and dust from main fans, air compressors, exhaust fans, steam turbines, and blowers without the cumbersome task of blade removal or recalibration, ensuring dynamic leveling is maintained.
Witness unparalleled efficiency in the removal of coking in various heating furnaces and reactors. Our revolutionary cleaning method tackles the stubborn polyvinyl chloride resin on heat exchangers with ease. From compressors to boilers, storage tanks, condensers, and intricate machinery, experience the pristine removal of oil and rust stains like never before.
and stubborn dust;
2.Power System: Experience the future of safe and efficient cleaning with our technology. Effortlessly maintain indoor and outdoor transformers, insulators, distribution cabinets, wires, and cables, even with live loads up to 37 kV. Safeguard your generators, motors, rotors, and stators with a cleaning process that promises zero damage.
3.Food Production: Elevate cleanliness standards with our Dry Ice Cleaning, adept at removing baking residue, gelatinous substances, and oil stains before products enter the oven. Achieve unsurpassed cleanliness of ovens, mixing and stirring equipment, conveyor belts, and molded products, ensuring hygiene and efficiency every step of the way.
Master the art of cleaning with our advanced technology, designed for packaging equipment, furnace racks, furnace plates, containers, rollers, inner refrigerator walls, and biscuit grates, optimizing performance and cleanliness.
4.Automotive and Shipping Industry: Wave goodbye to water pollution and residues with our immaculate cleaning solutions. From car door covers to canopies and carriages, maintain a spotless appearance with our dry technology. Our advanced solutions clean carburetors and swiftly remove paint without chemical agents, ensuring pristine vehicle surfaces.
Achieve unmatched efficiency in engine carbon deposit removal within mere minutes, drastically cutting traditional processing times of up to 48 hours. Our method guarantees a descaling rate of 100%, saving time, reducing costs, and ensuring safety.
Delve into seamless cleaning of the hull, seawater intake valves, seawater condensers, heat exchangers, and engine room equipment, ensuring every component operates at peak efficiency.
5.Aerospace Field: Revolutionize pre-production processes with our precise cleaning technology suitable for missile and aircraft painting and final assembly. Our solutions are perfect for composite mold paint removal and special aircraft maintenance, including crucial areas like landing gear compartments, ensuring superior quality and safety.
Jet Engine Conversion System: Seamlessly working directly on aircraft bodies, our technology saves valuable time and resources, enhancing efficiency and reliability in aerospace operations.
6.Printing Industry: Our Dry Ice Cleaning transforms how you maintain print quality by efficiently eliminating oil-based and water-based inks and varnishes. Our innovative cleaning method ensures gears, rails, and nozzles remain free of oil stains, ink deposits, and dyes, preserving equipment longevity and print quality.
Our method guarantees your printing equipment remains intact, enhancing operational efficiency and print excellence.
Cultural Relic Cleaning: Experience the next level in non-destructive cleaning technology for cultural relics. Our dry ice cleaning efficiently removes soil, soluble salts, mold, and sedimentary films, preserving the integrity and beauty of every artifact while elevating environmental and worker safety.
Our advanced methods enhance cleaning efficiency and quality, acting as a guardian for both heritage and the environment.
Explore the cleaning method and working principle of the CHIRUI Pellet Dry Ice Cleaning, where innovation meets efficiency.
Our dry ice blasting medium, akin to traditional abrasives like steel sand and baking soda, propels dry ice particles in a high-pressure airflow to precisely impact and clean surfaces. The magic of dry ice cleaning lies in its unique process.
Dry ice particles instantaneously vaporize upon impact, a unique feature where their momentum ceases, resulting in rapid heat exchange with the surface. This innovative method delivers unmatched cleaning results.
Solid CO2 sublimates swiftly into gas, expanding nearly 800 times in volume within milliseconds, creating a powerful 'micro explosion' at impact. This causes the effective breakdown of surface contaminants, leveraging the natural volatility of CO2 for superior cleaning power.
1b0c2dad
| 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}