Time- is the most precious of all resources
Theofrast- ancient Greek philosopher, naturalist
is a technology similar to any jet cleaning (sandblasting or shot blasting), only as a cleaning agent are granules of solid carbon dioxide (dry ice), which are evenly fed into the compressed air stream. After what it is supplied to the nozzle via a hose for accelerating pellets and bombing the contaminants.
Dry ice blasting equipment
Cleaning effect
Mechanical beat by the pellet
Pellets, accelerated in the air flow gain a speed up to 300 meter per hour, and hit the contamination, thereby removing it.
Thermal shock
When in contact with the contamination, the granule transmits
a temperature of -79°C, which makes the
contamination brittle,
easier to break down and peel off.
Sharp expansion
Particles of the dry ice are heated when hitting the contamination, since the kinetic energy of motion passes into thermal energy, after what the particles are turning to the gaseous CO2 immediately, expanding in volume by 700 times. This expansion is similar to a gas wedge, which peels off the contamination.
Hardness by Moss
Dry ice
Sodium hydroxide
Glass or plastic shot
Quartz Sand
Cooper slag
Electrocorundum
Dry ice cleaning advantages
- Equipment and production downtime reduction
- Increased productivity (reduced cleaning time)
- Effective removal of bacteria (mold, listeria, salmonella).
- The degreasing of the surface
- No abrasive that can cause damage to personnel and equipment
- Improving the level of occupational safety in the workplace (reducing surcharges for harm and increasing the length of the working week)
- Improving the safety of storage and transportation of cleaning products (reducing surcharges for harm and increasing the duration of the working week)
- Reducing the burden on the natural environment
- Reduction of production losses due to an accident
- Receive discounts on insurance rates when insurance to the social insurance Fund against industrial accidents and occupational diseases
- Reduction of economic losses due to staff turnover
Dry ice features
Dry ice pellets shelf life VS Dry ice cleaning machines
⌀ 1.7 mm
⌀ 3 mm
⌀ 6 mm
⌀ 9 mm
⌀ 16 mm
Comparison with the traditional cleaning methods
Chemical cleaning
It takes significant time for complete or partial dismantling and installation, transportation to the cleaning site and back, it requires the involvement of loading equipment and additional personnel, which leads to an increase in the time and complexity of cleaning activities
Chemicals and solvents are dangerous to humans
Chemicals can damage seals, insulation, and other materials
Chemical reduces can lead to the corrosion of the metal units of the equipment
Using the solvents is flammable and explosive
There is a need of chemical reduces utilisation after the cleaning (up to 1 litre per square meter)
Water jet cleaning
It takes significant time for complete or partial dismantling and installation, transportation to the cleaning site and back, it requires the involvement of loading equipment and additional personnel, which leads to an increase in the time and complexity of cleaning activities
It takes time to purge and dry the equipment from water residues
Risk of electric shock when working near electrical equipment
Water flow can injure the sealing and soft materials of the equipment
Chemical reduces can lead to the corrosion of the metal units of the equipment
There is a need of utilisation of the dirty water after the cleaning process (60-200 litres per square meter)
Abrasive blast cleaning
It takes significant time for complete or partial dismantling and installation, transportation to the cleaning site and back, it requires the involvement of loading equipment and additional personnel, which leads to an increase in the time and complexity of cleaning activities
It takes time to purge and dry the equipment from abrasive residues
The risk of sedimentation of abrasive in the lungs of people
Abrasive injures the surface of the cleaned equipment
The risk of leading the abrasive particles to the hard-to-reach places of the equipment, which can cause disruption of its operation
There is a need of cleaning and utilisation the abrasive after the process. (30-100 kg/sq.meter)
Dry ice cleaning
Dry ice disappears right after the cleaning
Dry ice is not flammable
Dry ice is not explosive
Dry ice does not conduct electricity
Quick preparation before cleaning
It is possible to clean without stopping the process line
Minimal post-cleaning time after the process
Degreases and disinfects
Contamination type VS air pressure
Light contaminations
- Engine oil sediments
- Fat sediments
- Fresh rust
- Liquid petrol
- Mold and biodegradation
- Mounting foam
- Porous thermal insulation
- Dust and fluff
- Household dirt
Average contaminations
- Resistant engine oils
- Fresh rust
- Liquid petrol
- Greases
- Fresh glue
- Porous thermal insulation
- Paint on the wood
- Wood cleaning
- Soot
Hard contaminations
- Bitumen
- Dried glue
- Old rust
- Paint 400 mom
- Carbon deposits
Super sonic nozzles are needed
Light contaminations Cleaning examples
Hard contaminants Cleaning examples
