Page 19 - HUB-4 Magazine Issue 93

RWM – Resource & Waste Management Expo
ERF quadruples conveyor
runtime by installing
STARCLEAN® belt cleaners
from ProSpare
An Energy Recovery Facility
(ERF) operated by Encyclis
conveys incinerator bottom ash
(IBA) via two alternating
streams of belt conveyors.
When one stream is in use, the
other is available for
maintenance and
housekeeping by the on-site
contracted company.
IBA can be extremely difficult to handle
due to its complex composition of
materials such as; glass, metal and
unburned residual waste. The
troublesome material, coupled with
ineffective belt scrapers on the
conveyors, resulted in significant
carryback problems – particularly on
and around the head drum.
The carryback problem limited how long
a conveyor stream could operate for
before intervention was required and,
resulted in the streams being switched
prematurely every 3-4 days to allow for
maintenance. It would then take the
contractors 4 full days following every
change to remove the IBA carryback
from around the head drum, under the
belts and the adjacent walkways.
To solve the problem, the
Maintenance Manager
contacted ProSpare.
To combat the high levels of carryback
and the effects of the abrasive IBA, two
STARCLEAN® belt cleaners were
installed on each of the 4 belts. The
primary cleaner was specified with
tungsten carbide 286nl blades, with a
protective apron over the mounting feet
to prevent premature wear. For the
secondary cleaner, heavy duty 09hm
tungsten carbide blades were selected
and fitted to a reinforced blade base to
tackle the remaining fines.
The maintenance manager was
delighted with the results. Previously,
each stream would run for 3-4 days
before being switched prematurely. With
STARCLEAN®, each stream now runs for
2 full weeks. The on-site team only
switch streams, by choice, for regular
housekeeping and as part of planned
preventative maintenance.
Furthermore, cleaning times have been
reduced from 4 days to 2 days across
both streams – a 50% decrease. The
amount of carryback reported has also
more than halved.
To read the full case study, or for more
information on STARCLEAN®, visit
https://www.prospare.co.uk/