The particles in the reactor are fluidised (suspended) by air and gas injection and heated up to standby temperature (~420C). The carrier with contaminated parts is submerged in the bubbling silica as in a boiling liquid. The first part of the cleaning cycle begins immediately: without combustion, the organic contamination oxidizes in the hot sand and the reactor heats up to the cleaning temperature of 450 C.

Lighter organic substances volatizes quickly, then partially oxidize and rises through the bubbling sand bed. Passing through the flame screen on the reactor surface with permanent pilot, they are ignited immediately and enriched with air to provide a turbulent and high temperature post-combustion.

Heat released during this process is directly recovered and absorbed by the sand to maintain the reactor temperature. In the second part of the cycle, the oxidation process in the reactor is completed and the reactor reassumes stand-by temperature.

The movement of the bubbling sand sustains the cleaning action and removes remaining inorganics from the parts. The cleaning process happens at a perfectly controlled and homogeneous temperature in the suspended silica reactor , without flames or combustion, and is suitable for high precision and costly parts.

The system is fully controlled by the ARENA CONTROLLER, a propriatory technology of ARENA that guarantees the best performances of your system at all time without your intervention.

Download pdf brochure in English
Download pdf brochure in Chinese Mandarin