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Fibre blowing system
CEMEX UK Materials > Axminster Concrete Plant, Devon > 07808 731626
production & processing: 53
The safety team has devised a solution to the problems associated with the
addition of polypropylene fibres to concrete and screed mixes.
A one-man system now transfers the
fibres from the batch cabin into the mixer,
consisting of a cone with a lid located in
the batch control room. When the fan is
switched on, the fibres are put into the cone
and the lid is shut and sealed. The cone joins
onto an electric fan blower located under the
floor of the batch cabin, and the fibres are
blown along a duct into the pan mixer.
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Guarded area to circular saw
Huntsmans Quarries > Naunton Quarry, Gloucestershire >
01451 850555
A form of distance guarding with lock-off has been developed for the
large circular saw used for cutting block stone. It prevents access to the
saw whilst it is working but still allows easy operation.
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Automation of fibre addition
CEMEX UK Materials > Bangor Concrete Plant, Gwynedd > 07712 486818
As part of a risk assessment process, staff at this plant identified a series of potential
hazards involved in the manual addition of polypropylene fibre bags to the mixer. In order
to add fibre, the batcher had to leave his control room, descend ten steps, walk to the rear of the batch
belt, ascend ten more steps, and then manually place the bags of fibre on the batch belt.
To reduce both the frequency and difficulty of this operation, the team fitted a carousel which could hold
up to twenty fibre bags (enough for an entire day’s production) and would index by one bag each time a
button was pressed in the control room.
Portable additive dispensing system
CEMEX UK Materials > Mansfield Concrete Plant, Nottinghamshire > 07771 878373
The safety team has devised a portable additive dispensing system (PADS) to enable
concrete mixes to be safely dosed with additives at the production unit or delivery site,
minimising manual handling and other hazards.
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The PADS system is quick to assemble, lightweight and easily stored in the boot of a car. It enables the
user to dispense additives remotely at floor level with the minimum risk of slips, trips and falls due to
spillages or working from height.
The system utilises a steel box to house the arrangement of the pump, a flow-meter, battery and
associated flexible pipe-work. The pump draws additive stored in nearby containers via a flexible plastic
pipeline supported by a ‘Shepherd’s Crook’ arrangement, and dispenses into the mixer truck at a rate of
approx 5 litres per minute at a head of approximately three to four metres.