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What is the Dual Hose Dry Ice Blasters system?
In dual-hose dry ice blast systems compressed air is supplied to the blast applicator through one hose, while dry ice is supplied through a second hose running from the applicator to the hopper. The passage of compressed air through the applicator creates a suction on the second hose that pulls the dry ice particles from the hopper into the compressed air stream at the applicator. The dry ice particles and compressed air are then blasted together. Dry ice blasting systems used dual-hose technology, a system that uses the Venturi effect to accelerate the particles.
in this system dry ice particles are only accelerated the length of the applicator by the compressed air, the dual hose system has a relatively small kinetic effect and offers a much less aggressive clean than single hose technology.
Two hose blasting systems have the following limitations:
- The length of the hose is limited by the two-hose suction capability, which then limits how far away the blasting can take place from the machine
- The allowable diameter of two-hose nozzles is limited by the lower efficiency and impact velocity created by pulling particles into the nozzle by suction
- The limited aggression of the two-hose system will not allow for vertical blasting because the suction would also have to overcome gravity