Ozone Depletion: PU Foaming Process with lower Environmental Impact
Complying with the increasingly greater amount of energy-saving laws that are passed and the need to reduce the environmental impact, hydrocarbons-blown foams represent today the right and balanced solution in the next decade, also for this application.
Submitted to a complete and accurate risks analysis, hydrocarbons-blown systems can be considered safe and pose no danger to the operators involved in the process or to the surrounding environment.
The use of specific storage tanks, pre-blending stations, metering machines, foaming fixtures and related ventilation equipment, gas monitoring networks and electric safety features have prevented explosions and accidents. A proper use of ventilation, which is advisable for all polyurethane plants, reduces the risk of accumulation of hydrocarbon gas in those areas (e.g. pre-mixing and polymerisation) where small quantities of gas are regularly emitted.
Cannon "A-System" Penta Twin
The "A-System" Penta Twin is the high pressure-metering machine designed for the safe use of flammable blowing agents, such as Cyclopentane, Isobutane, etc.
Component's groups in contact with the blowing agent are sited in a special ventilated enclosure and fully equipped with explosion-proof electrical apparatus, inert circuits and safety sensors.
Cannon "A-System" Penta Twin
The unit has been split in two independent parts, one for the polyol circulating system and the other for Isocyanate, each with a special and proper structure. This means restricting the use of safety devices only to the polyol unit. Explosion-proof devices can be mounted exactly where they are needed, which takes it possible to avoid buying extra safety features for components that are not supposed to be placed in a dangerous area.
Cannon Retrofitting Solutions
Retrofitting an existing foaming plant represents a complex engineering task. Expert Cannon staff analyse the conditions and consequently suggest the type of conversion that is necessary based on local safety rules so that permission to work is granted by the local authorities.
Cannon Penta Module
Cannon’s retrofitting solution consists of attaching a Penta module to the existing customer line. In other words, a complete metering polyol side with all the required safety features is added to the line replacing all the old polyol fixtures. The areas where Cyclopentane vapours are expected to be released continuously or for long periods of time are closed in a monitored and ventilated box so as to minimise the presence of hazardous surfaces. Special attention is devoted to the ventilation of foaming jigs.
Blowing Agent Premix Units
Penta EasyFroth™ is a closed-loop high-pressure pre-blending unit, specially designed for hydrocarbons and other liquid blowing agents.
Cannon Penta EasyFroth Premix Unit