39
2021
Application
URT reference plant with activated carbon adsorption unit at REVAC AS in Norway.
the gases in the polyurethane foam. The
robot detects each fridge door and main
fridge unit.
A cooling device recycling plant oper-
ated in line with this concept was installed
at ALBA Electronics Recycling GmbH in the
first quarter of 2017 and has already treated
around a million fridges.
Automation and monitoring
Proper monitoring is required in order
to fulfil the obligations under the WEEELA-
BEX and corresponding CENELEC stand-
ards (EN 50625). As manual evaluation of all
necessary data demands substantial effort,
URT is developing automated data collec-
tion systems. Scaling of input and output frac-
tions, meanwhile, is state-of-the-art at URT
plants.
Further development steps include the
detection of blowing agents using automated
measurement by robots. With simultaneous
allocation of cooling units into size categories,
expected values for the blowing agents can be
determined. Thus, the plant operator can con-
tinuously check the effectiveness of blowing
agent recovery.
Meanwhile, reduction of staff in compres-
sor treatment is the subject of a research and
development project at URT.
www.urt-recycling.com
Slow rotating shears reduce dust
URT fridge recycling plants achieve throughputs of up to 200 devices per hour. Domestic
and side-by -side fridges are shredded in a single step using a four-shaft shredder. By
using slow rotating rotor shears to shred the fridges, less dust is produced. One knife set
can shred up to 300 000 household fridges. AAA fridges in particular are isolated with
VIP models. The shredder processes the VIPs, releasing the fine powder. URT plants
are equipped with a dust-binding step and specific dust filters to capture the powder. To
minimise maintenance downtime, URT plants have a well-planned maintenance and
cleaning concept.
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