Download PDF (2.3MB) - Safequarry.com
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34:<br />
><br />
maintenance & Housekeeping<br />
www.safequarry.<strong>com</strong><br />
Lifting tool for changing conveyor feed<br />
drums<br />
Hanson Aggregates > Mountcastle Quarry, Fife ><br />
01337 810473<br />
Changing conveyor feed drums has always posed<br />
manual handling risks at Mouncastle Quarry in Cupar.<br />
A lifting tool, fabricated by site personnel using scrap<br />
steel, has been the answer. It slides onto the forks on the<br />
fork lift truck and lifts the conveyor drum by the drum<br />
shaft.<br />
><br />
Safer access for maintenance<br />
Lafarge Aggregates > Greenhithe Wharf, Kent > 07740 563336<br />
During a ship-to-shore conveyor reconstruction at this wharf,<br />
staff identified issues governing the lack of access to both the<br />
conveyor rollers and the motor for the Gravity Take-up Unit<br />
(GTU), which resulted in difficulties carrying out standard<br />
maintenance.<br />
award<br />
winner<br />
Lafarge Aggregates, in<br />
conjunction with its<br />
conveyor construction<br />
<strong>com</strong>pany, decided to<br />
lower the GTU to floor<br />
level for ease of maintenance, and to construct<br />
a travelling platform at the top of the conveyor<br />
structure so that all the conveyor rollers could<br />
be accessed for cleaning and maintenance. Significantly wider<br />
walkways were also a feature of Lafarge’s specification.<br />
> Fitting of conveyor belting<br />
on<br />
Aggregate Industries UK > Peckfield Quarry, Leeds > 01132 877482<br />
video<br />
Following an incident involving a hoist chain slipping off the end of a<br />
metal tube used to lift a replacement reel of conveyor belting, this quarry<br />
designed a secure support arrangement for the conveyor belting roll.<br />
The newly designed equipment consisted of a 1.3m long tubing of 75mm<br />
O/D with a wall thickness of 5mm. Fitted to each end of the tubing were<br />
locking collars each secured by means of two 12mm bolts. Two lifting<br />
eyes were attached to the tubing, made from profiled cut 12mm plate<br />
with machined bores to slide on the tubing so that any width of belting<br />
could be ac<strong>com</strong>modated.<br />
on<br />
video<br />
Plastic caps were fitted over the ends of the tubing to stop dirt entering, causing internal corrosion. The<br />
equipment was treated as an item of lifting equipment and was tested to a SWL of 2 tonnes, with an<br />
appropriate certificate issued. Seven of these supporting beams were manufactured by Selby Engineering,<br />
and distributed to quarries within the area at a cost of only £130 each.