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News Release from: Icevent Technology International | Subject: Triventek dry ice maker
Edited by the Engineeringtalk Editorial
Team on 14 April 2005
Process promises half-price dry ice
New, patented equipment from Triventek means that industrial engineers can produce as much dry ice as they want, where and when they want it.
New, patented equipment from Triventek means that industrial engineers can produce as much dry ice as they want, where and when they want it The benefits of frozen carbon dioxide (-78.6C) as a blast cleaning medium have been well recognised, but the cost and logistical problems of transporting highly perishable dry ice pellets around the country have deterred many from taking up the technology
This article was originally published on Engineeringtalk on 19 Jan 2006 at 8.00am (UK)
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Also manufacturing engineers wanting to use dry ice for its excellent cooling properties (628kJ/kg) for transportation, product cooling during grinding and shrink fitting, have also been put off by the previous cost and waste of stocking bought-in dry ice pellets.
Dry ice cleaning can successfully replace grit, sand and other abrasives, high pressure water and hazardous chemicals.
Basically, if an engineer wanted to use any of the above methods, but did not want the associated damage to substrate, mess or waste disposal problems, then dry ice is the solution.
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Cleaning with frozen CO2 is thought to have first been exploited by the aviation industry which was looking for a nonabrasive method of stripping coatings from aircraft fuselages.
This nonabrasive characteristic has been taken up in cleaning moulds and dies where no dimensional alteration can be tolerated.
The fact that the blasting medium disappears harmlessly as gas means there is no secondary waste to clear up, or to dispose of.
The absence of moisture in dry ice is important when cleaning electrical equipment and other delicate materials or equipment.
Food factory quality controllers also appreciate the absence of moisture as the industry drives to further improve microbiological hygiene.
Most machines can be cleaned whilst online and large time-savings can be gained by overcoming the need to remove, disassemble, protect, and clear up afterwards.
Components can be cleaned, eg of moulding flash, oil, grinding powder etc quickly and without damage to the substrate.
Triventek's PE45 pelletiser, coupled with the RE45 recovery unit, make it feasible for works engineers to manufacture their own dry ice as and when needed.
By recovering up to 90% of the gas normally lost to atmosphere at the pelletiser stage, and by reducing losses of stored dry ice due to sublimation, or evaporation, of the solid to gas, the cost of dry ice is also halved.
In side-by-side tests carried out by German specialist dry ice cleaning contractors, fresh pellets produced on-site were shown to clean contaminates significantly better and faster than pellets produced the previous day at a remote factory.
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