VV-net products

As soon as the system has reached normal operation temperature, a carrier (1) with the objects is submerged in the suspended particle reactor, as if it were a boiling liquid. The contamination on the objects will essentially convert to gas and fine inorganic powder very quickly, all while most of the energy contained in the contamination helps to heat the reactor. Gas and inorganic powder are carried with the flow through the reactor (2), and led into a dust separation device, which can be a cyclone or a barrier filter (3). The inorganic powder is (4) is collected and can be removed daily, and the cleaned exhaust flow (5) is released into atmosphere.

When the door (1) of the controlled atmosphere – cold or preheated - is opened, the parts can be loaded onto the stacking tray (2) which slides out of the unit automatically for easy access. Once closed, the programmed cleaning cycle starts. The process may contain a melting phase to remove most of the polymer or contamination from the delicate parts, in which case the melted material (3) can be removed prior to the start of the real cleaning cycle, or left in the unit to slowly evaporate later in the cycle. The cleaning cycle itself takes typically 1.5 to 3 hours, depending on the parts and the quantity of polymer to be removed. The atmosphere – temperature and oxygen content - in the reactor is permanently controlled to keep temperatures right all the time and to avoid overheating or burning at all times. The reactor is electrically heated (4), and the gases leaving the reactor pass through an ignition and postcombustion chamber (5) to clean the exhaust flow.