What is dry ice?
Dry Ice: This fascinating substance is actually solid carbon dioxide (CO2), existing at a frigid temperature of -78.5 ºC. Typically, it is condensed into a colorless liquid form at a significant pressure of 62.50 bar. Its transition to a solid state under conditions of low pressure, via throttling and depressurization, showcases its unique properties.
Physical Properties: Dry ice presents as a white crystalline form that sublimates effortlessly at room temperature. Its high heat of vaporization allows it to dramatically reduce the ambient temperature upon sublimation at atmospheric pressure. This process can cause dry ice to liquefy the moisture in the air, forming visible vapor.
When dry ice sublimates, water vapor droplets or tiny ice crystals adhere to dust in the atmosphere, creating a captivating white smoke effect. Its simple cubic crystal structure classifies it as a molecular crystal, with individual carbon dioxide molecules arranged intricately.
The beauty of dry ice crystal structure lies in the meticulous stacking of these crystals in various orientations at the vertices and centers of the cube, creating a harmonious arrangement.
Chemical Properties: Dry ice is an epitome of chemical stability. Odorless and non-toxic, it poses no risk of combustion. However, excessive carbon dioxide levels in the air can irritate the respiratory system, leading to increased breathing rates and potential suffocation hazards.
Also known as hypoxia, this condition highlights the need for caution. Carbon dioxide's remarkable thermal stability is evident by its minimal decomposition of just 1.8% at a scorching 2000 ºC. As an acidic oxide, dry ice exhibits the typical reactions associated with acidic oxides, including its reaction with water to form carbonic acid.
How is dry ice made?
The process begins with extracting liquid carbon dioxide from storage tanks. It is then sprayed into the dry ice machine's ice pressing chamber. As it throttles through the nozzle, it transforms into a snowflake-like solid form of dry ice, accompanied by a release of gas.
Once a sufficient quantity of solid dry ice forms, the hydraulic system engages, compacting these snowflake-shaped particles into solid dry ice cubes. These cubes are then extruded from the machine's die end, where a rotating blade breaks down the elongated dry ice structures into desired lengths.
These are shaped into dry ice pellets, customized to the required dimensions.
The Three Main Principles of Dry Ice Cleaning:
1. Energy Transfer: When dry ice impacts a surface at high velocity, it dissipates its kinetic energy effectively. The particles engage in rapid heat exchange with the surface, causing instant sublimation of carbon dioxide. This leads to the dirt cooling, contracting, and becoming brittle.
The resultant debris is then effortlessly washed away.
2. Low Temperature Cracking: The variance in thermal expansion coefficients between materials causes a breakdown in their adhesion. Dry ice pellets, at -78.5 ºC, strike the surface and freeze the dirt, making it brittle and vulnerable.
This results in cracks that disrupt the mechanical properties of the adhered dirt, facilitating its removal.
3. Micro Explosion: As dry ice particles infiltrate dirt crevices, they rapidly sublimate, expanding their volume by 600-800 times within milliseconds, efficiently detaching the dirt from the object's surface.
An Overview of Dry Ice Cleaning Applications:
The versatility of dry ice cleaning is evident in its ability to cleanse diverse surfaces, ranging from metal and molds to production equipment and ancient relics. This method sidesteps the need for cooling or mold disassembly, thus protecting mold integrity from chemical corrosion and damage.
Unlike mechanical cleaning methods, which risk causing mechanical damage or scratches and reduce mold precision through repeated handling, dry ice cleaning stands as a superior alternative. Here are some illustrative examples of its application:
1.Petrochemical industry: Harness the power of cutting-edge dry ice cleaning technology to effortlessly eliminate rust and dust from critical equipment. Clean main fans, air compressors, exhaust fans, steam turbines, and blowers with precision, all without blade removal, thereby eliminating the tedious task of recalibration for dynamic leveling.
Experience unparalleled efficiency in removing coking from heating furnaces and reactors. Swiftly cleanse polyvinyl chloride resin from heat exchangers, and effortlessly strip oil and rust from compressors, storage tanks, boilers, reactors, condensers, and intricate machinery, ensuring peak operational performance.
And dust with remarkable effectiveness.
2.Power system: Safely and directly clean transformers, insulators, distribution cabinets, wires, and cables under live load (below 37 kV) with ease. Maintain generators, motors, rotors, and stators in pristine condition without any damage, ensuring reliability and longevity.
3.Food production: Effortlessly remove baking residues, gelatinous substances, and oil stains, making your pre-baking and mixing processes seamless. Clean ovens, mixing equipment, conveyor belts, and molded products with impeccable precision.
Optimize your packaging process by thoroughly cleaning equipment, furnace racks, containers, rollers, refrigerator walls, and more, ensuring hygiene and quality.
4.Automotive and shipping industry: Achieve impeccable cleanliness for car door covers, canopies, carriages, and underbody without leaving water residue. Seamlessly clean carburetors and remove paint, while eradicating engine carbon deposits in record time, with a descaling rate reaching 100%.
Dramatically cut down processing time from 48 hours to a mere 10 minutes, safeguarding health and reducing costs. Elevate efficiency and achieve thorough carbon deposit removal.
Efficiently maintain your vessels by cleaning hulls, seawater intake valves, condensers, engine rooms, and mechanical equipment, ensuring optimal performance and longevity.
5.Aerospace field: Optimize pre-production processes for missile and aircraft painting and assembly. Remove paint from composite molds and special aircraft with precision. Achieve superior engine carbon cleaning and maintenance, particularly in intricate landing gear areas.
Revolutionize jet engine conversions by working directly on aircraft bodies, significantly saving time and enhancing operational efficiency.
6.Printing industry: Achieve impeccable ink removal, cleaning both oil-based and water-based inks and varnishes. Effortlessly clean oil stains and ink deposits from gears, rails, and nozzles, ensuring top-notch print quality and prolonged equipment life.
Protect your printing equipment from wear and tear while maintaining high-quality prints.
Cultural relic cleaning: Embrace state-of-the-art dry ice cleaning technology to gently and effectively remove pollutants such as soil, salts, mold, and sedimentary films from cultural relics. Experience enhanced cleaning efficiency and environmental friendliness compared to traditional methods.
Enhance cleaning efficiency and quality while prioritizing environmental health and worker safety.
Cleaning method and working principle of CHIRUI pellet dry ice cleaning
Similar to abrasive blasting with steel sand, glass sand, or soda, dry ice cleaning propels dry ice particles at high speeds in a high-pressure airflow, impacting the surface with precision.
The uniqueness of this method lies in the instantaneous vaporization of dry ice particles upon impact. The momentum dissipates instantly, enabling rapid heat exchange, resulting in remarkable cleaning efficiency.
Solid CO2 sublimates rapidly into gas, expanding nearly 800-fold in moments, creating a micro explosion effect at the point of contact. This volatile nature of CO2 powers the exceptional cleaning capability.
880aea53
| 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 
){kind=link}