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How it works
The dry ice
blasting uses small pellets of dry ice sprayed through a jet
nozzle with compressed air to remove paints, oil, grease,
dirt,ink, adhesives and other materials you want to remove. The
frigid temperature of the dry ice against the dirty surface
causes adhesion to shrink and loosen from the surface. On
immediate impact, the dry ice evaporates into environmentally
safe and innocuous CO2 gas.
The kinetic
energy ( E = ˝ mv 2)
The energy
associated to the mass and to the speed is transferred to the
surface to be cleaned / coating removal. This is the fundamental
way to work either with this dry ice method or with sand / water
etc.
Thermal
differential
When the dry
ice pellets cold touch the surface, a small thermic difference
occurs between the coating material, the contaminant and the
substrate. This provokes cracks and the detaching facilitating
the removal process.
Micro –
Explosion
When the dry
ice touches the surface and it transforms into innocuous CO2
gas, , this tends to invade the cracks and the pores penetrating
into the coating / contaminant.Then it warms up and it expands
rapidly and it makes the coating / contaminant detaching from
the substrate, favouring still further the coating removal or
the cleaning process.
Sublimation
With an
inferior pressure at 5.2 bar, the solid CO2 transforms directly
in gaseous state without turning into the Liquid state. But if
the blasting pressure is superior at 5.2 bar ( 5.2 x 14.7 =
76.44 psi ),the CO2 in the sublimation state will show some
characteristics of the Liquid CO2 while the same reaches its
"triple point". Has been proved that the Liquid CO2 is a strong
organic solvent so it is reasonable to suppose that this solvent
action can be present when the blasting pressure is superior at
5.2 bar.
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BENEFITS OF DRY ICE BLASTING PROCESS |
Decreased
downtime
Dry ice
blasting does not require equipment to be uninstalled or
disassembled to clean it. Downtime can now be measured in
minutes with the dry ice blaster, not hours or days like with
other cleaning methods. This is a –saving cleaning process that
uses dry ice pellets and compressed air.
Safe for all
equipment
Dry ice is
soft enough not to pit the equipment, but is strong enough to
clean it. The dry ice pellets evaporate into gas on impact so
there is no residue or grit that can cause future damage to the
equipment.
Sanitary and
clean
Dry ice
evaporates on impact leaving no mess to be cleaned up.Only the
material being removed must be disposed of.
Environmentally-Friendly
The dry ice
pellets evaporate as an environmentally-friendly gas and leaves
no harmful wastes.
Dry ice
blasting is:
-
non-abrasive
-
non-flammable
-
nonconductive
It does not
produce CO2 or add CO2 to the atmosphere and therefore does not
contribute to the greenhouse effect.Dry ice blasting is
truly, and completely, environmentally friendly!
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DRY ICE BLASTING APPLICATIONS |
ELECTRICAL
·
Electronic / electrical
control panels
· Cable trays
Motors/ stators
·
Armatures/coils/windings
· Generators
· Printed
circuit boards
·
Semi-conductors
·
Transformers
· Switch Gear
· Robotic
Equipment
· Relays
· Turbines
· Insulators
·
Sub-Stations
FOOD
·
Ovens
· Floors
· Walls
· Processing
equipment
· Equipment
ceilings
· Conveyors
· Bake-off
trays
· Packaging
areas and equipment
OTHER
·
Cigarette / cigar smoke
· Chewing gum
·
Formaldehyde
· Beauty
salons
· Waste
containers
· Nuclear
decontamination
· Fire
restoration
· Guns
· Barrels
COMMERCIAL
·
Building
· Exterior /
interior
· Hospitals
Nursing Homes
· Hotels
· Residential
· Structures
· Heating /
cooling system
·
Brick
wood
·
Remediation / restoration
· Graffiti
decal removal
INDUSTRIAL
·
Molding
equipment
· Butt
Welders
· Process
equipment
·
Manufacturing equipment
· Piping
·
Tanks
· Ship Hulls
· Automobiles
Interiors
· Printing
Presses
· Pulp/ Paper
equipment
· Oil field
equipment
· Boiler
tubes
· Aircraft
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How Dry Ice Blasting works? |
Dry ice
blasting uses small pellets of dry ice sprayed through a jet
nozzle with compressed air to remove paint, oil, grease,
asphalt, tar, decals, soot, dir, ink, resins,adhesives and other
materials you want to remove. Instead of using hard abrasive
media to grind on a surface (and damage it), dry ice blasting
uses soft dry ice,accelerated at supersonic speeds, and creates
mini-explosions on the surface to lift the undesirable item off
the underlying substrate. On the immediate impact, the dry ice
evaporates into environmentally safe CO2 gas. Dry ice blasting
minimizes waste,saves time and saves money. Enjoy the benefits
of a time - saving cleaning process that uses dry ice pellets
and compressed air.
What makes our Dry Ice Blasting machines so great?
- They are
Made in Italy
- High
quality products
- The price
is cheap and reasonable, so very competitive
- Our
products are the result of our 15 years of experience in the
cryogenic
cleaning
process and innovation.
The DRY ICE BLASTING SYSTEM
- Doesn’ t
use chemical solvents
- is a
sanitary and clean treatment
- uses dry
ice
- is a non –
abrasive cleaning technology
- chemically
inert
- it is a
soft and delicate treatment surface
- it can be
used in dangerous environment
- is non
flammable
- is non
conductive
- It is
environmentally friendly
- Doesn’t
produce secondary contaminants
- Dry ice
blasting allows most items to be cleaned in place without
disassembly
- it can be
used without damaging active electrical or mechanical parts
- Dry ice
blasting is used to remove production residues, release agents,
contaminants,
paints, oils, grease, dirt, powder etc.
MEC philosophy consists in
-
offering the complete solution for any customer cleaning needs
with our flexible and diverse product line.
- taking care
of everything from the customized project of the dry ice
equipment and its components to the application technology.
-
offering a full training to the customers.
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About MEC :
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Founded in
1991, M.E.C. Company's main activity consists in cryogenic
sector using a physical process, paying particular attention to
the ecology, and in cryogenic separation to renew the
machineries and to recover the workshop rejections.Another
important activity is the machinery and plant construction for
technical cleaning with dry-ice blasting, as well as the
prototypes construction for cryogenic use at very low
temperatures.
Our range of
products is characterized by different model of Blasters for the
cleaning with the dry ice, Pelletizers and automated plants :
-
MICROBLAST SINGLE HOSE –
electrical or pneumatic operation
- MICROBLAST
PRECISION SINGLE HOSE UNIT
with dry ice
powder
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MICROBLAST DOUBLE HOSE -
electrical or pneumatic operation
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MICROBLAST DOUBLE HOSE with
dry ice pellets mixed with bicarbonate
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PELLETIZERS for
the production of dry ice pellets – mechanic or hydraulic
operation
-
BLASTING ROOM
- Cabin for
manual operation of dry ice blasting
-
DRY ICE
BLASTING SYSTEM -
Complete system for automatic operations of dry ice blasting, in
cabin, through a reciprocator, rotating/inclinable platform and
with a self-production of solid CO2 pellets
- MANY ACCESSORIES
- CUSTOMIZED MACHINES |