Filtration

The AVN exhaust gas cleaning system ensures the efficient purification of fluorine- or sulfur-containing exhaust gases before they are released into the atmosphere. It consists of an exhaust air filter with a fan and rotary valve discharge, a lime tank with aeration device, and a precise lime dosing unit. 

The raw gas exiting the on-site system is drawn in by the fan and passed through the exhaust air filter. Any fluorine present is not released directly into the environment but is treated in a controlled manner. Precisely metered lime is added to the flowing raw gas via the dosing unit attached to the lime tank. A special nozzle swirls the gas and mixes it intensively with the lime. The fluorine/sulfur contained in the raw gas reacts with the lime and is captured and separated both in the pipeline and in the downstream dust collector.

The lime contaminated with fluorine/sulfur is then discharged via the rotary valve and must be disposed of in accordance with applicable environmental regulations. In this way, the AVN exhaust gas purification system ensures reliable fluorine/sulfur binding, clean air emissions and safe handling of residues.