Dry ice powder
Liquid carbon dioxide emitted from the cylinder directly after the snow can get solid, but empty of liquid CO2 in a "dry refrigerator"(V ≈ 1 2 m) within the throttling expansion, which was powdered dry ice,  

do not Through the recycling of dry ice machine, so the production of dry ice powder dry ice production relative to other simple shape, but also greatly reduce the cost of production of dry ice. In the expansion process, some of the liquid C O2 into the gas CO2, and some manufacturers use this method produced powdered dry ice, the absence of substantial recovery of this part of the gas CO2, and thus higher per ton of dry ice consumption of liquid CO2, and some plants As much as 5 tons.

Dry ice pellets

The appearance of dry ice the size of a grain of rice such as rice, also known as ice m ice grains are generally used for cleaning cooling effect. At room temperature and pressure of 6079.8 kPa pressure,

the carbon dioxide condenses into a colorless liquid, and then quickly evaporated at low pressure, it condenses into ice-like solids, and then through the suppression of particles of dry ice machine out of the mold to form a solid Carbon dioxide, particulate matter of dry ice.

 Dry ice pellets specifications Ф 3mm, Ф 14mm, Ф 16mm, Ф 18mm
 After absorbing the heat of sublimation of dry ice into carbon dioxide gas, without any residual, non-toxic, no smell, there is sterilization. It is not heated by liquefaction, and direct gasification. Dry ice is the solid form of carbon dioxide, due to dry ice temperature is very low, approximately negative 78.5 degrees Celsius, so often used to keep the objects remain frozen or low temperature.

 3 mm grain of dry ice cleaning, the advantages as blasting media
 General choice of cleaning cleaning grain size 3 mm particle size, dry ice is CO2 at -78 ℃ low temperature, the solid form, the small particles is conducive to cleaner air compressor gas injection, can increase the speed; and the contact surface to be cleaned , the rapid sublimation of small grains quickly with dry ice in an instant release of energy the perfect, clean dirt to achieve the best results.

Under normal pressure, direct sublimation of dry ice is solid CO2, there is no liquefaction process, this feature means that the blasting media disappear, leaving only fragments of the original dirt to be processed, and no secondary pollution.
 

Slice / Block Dry ice

Dry ice block size: 142mm × 142mm × 70mm, and can be customized according to size, density of 1.6 above, the negative 78.5 degrees Celsius;

At room temperature and pressure of 6079.8 kPa pressure, the carbon dioxide condenses into a colorless liquid, and then quickly evaporated at low pressure, it condenses into ice-like solids, and then through the ice mold is pressed briquette machine out to become a block Pressed, dry ice, and looks like the same brick, but the color is white half brightly.

 Block of dry ice production in the manufacturing process of dry ice powder is much more complex; but the product quality, economic efficiency is much better.

 Block must have a machinery manufacturer that is dry ice production equipment, The implications of the dry ice machine ice plant, there are expansion tank, dry ice, ice pressure, turbocharger, compressor pump lotion, emulsion tank, the operating agencies.

SAFE HANDLING OF DRY ICE

Caution: Keep Dry Ice away from children if they cannot be closely supervised at all times.

HANDLING
Dry Ice temperature is extremely cold at -109.3°F or -78.5°C. Always handle Dry Ice with care and wear protective cloth or leather gloves whenever touching it. An oven mitt or towel will work. If touched briefly it is harmless, but prolonged contact with the skin will freeze cells and cause injury similar to a burn.

STORAGE
Store Dry Ice in an insulated container. The thicker the insulation, the slower it will sublimate. Do not store Dry Ice in a completely airtight container. The sublimation of Dry Ice to Carbon Dioxide gas will cause any airtight container to expand or possibly explode. Keep proper air ventilation wherever Dry Ice is stored. Do not store Dry Ice in unventilated rooms, cellars, autos or boat holds. The sublimated Carbon Dioxide gas will sink to low areas and replace oxygenated air. This could cause suffocation if breathed exclusively. Do not store Dry Ice in a refrigerator freezer. The extremely cold temperature will cause your thermostat to turn off the freezer. It will keep everything frozen in the freezer but it will be used up at a faster rate. It is the perfect thing if your refrigerator breaks down in an emergency. There are also Commercial Storage Containers available.

VENTILATION
Normal air is 78% Nitrogen, 21% Oxygen and only 0.035% Carbon Dioxide. If the concentration of carbon dioxide in the air rises above 0.5%, carbon dioxide can become dangerous . Smaller concentrations can cause quicker breathing and headaches but is otherwise not harmful. If Dry Ice has been in a closed auto, van, room, or walk-in, for more than 10 minutes, open doors and allow adequate ventilation before entering. Leave area containing Dry Ice if you start to pant and breath quickly develop a headache or your fingernails or lips start to turn blue. This is the sign that you have breathed in too much CO2 and not enough oxygen. Dry Ice CO2 is heavier than air and will accumulate in low spaces. Do not enter closed storage areas that have or have had stored Dry Ice before airing out completely.

PICK-UP TIME AND TRANSPORTING
Plan to pick up the Dry Ice as close to the time it is needed as possible. It sublimates at 10%, or 5 to 10 pounds every 24 hours, whichever is greater. Carry it in a well-insulated container such as an ice chest. If it is transported inside a car or van for more than 15 minutes make sure there is fresh air. After 15 minutes with Dry Ice only in its paper bag in the passenger seat next to me, I started to breathe faster and faster as though I were running a race. I couldn't figure out why I was so out of breath until I saw the car air system was set in the re-circulated position, not fresh outside air.

COUNTERTOPS
Do not leave Dry Ice on a tiled or solid surface countertop as the extreme cold could crack it. DISPOSAL
Unwrap and leave it at room temperature in a well-ventilated area. It will sublimate from a solid to a gas.

DO NOT   leave Dry Ice unattended around children.

BURN TREATMENT
Treat Dry Ice burns the same as a regular heat burns. See a doctor if the skin blisters or comes off. Otherwise if only red it will heal in time as any other burn. Apply antibiotic ointment to prevent infection and bandage only if the burned skin area needs to be protected.