Extraction and filtration systems

In cooperation with ILK Dresden (Institute
for Air Conditioning and Refrigeration), ULT has
developed special extraction and filtration units for production of glass fibre
reinforced plastic parts (GFR). These
systems can be utilized to remove and intensively filtrate styrene, fine dusts
and chips from process air. Such airborne pollutants can have serious impact on
the health of employees and process system functionality.

In collaboration with the ILK Dresden, ULT
analysed the behaviour of filters and filter-aid powders and, subsequently,
developed solutions to capture and precipitate resulting hazardous substances
to a high degree. The air purification system features a two-step design: In
the first step, self-cleaning cartridge filters are utilised.
Using HEPA-type (High Efficiency Particulate Air) filters, in a subsequent step
finest suspended matter is captured. Finally yet importantly, energy efficiency
benefits from feeding back the purified air into the working room.

One particular challenge for respective
filtration technology was the processing of polyester resin and glass fibre
with some fillers added. Fire and explosion prevention had also to be
considered.

The resulting solution is a newly developed
metering device that ensures binding of the aggressive
polyester dust mixture particles, extended filter service lifetime, protection
of ducts and equipment against wear, leading to reduced costs.