Biomass
return rollers. These conveyors run horizontally at ground level accepting material from the undersize chutes of the disc screens (by others) before elevating via heavy duty lattice gantries to a height of approximately 30 metres, before discharging at the top of transfer tower A. This tower designed and manufactured by Canning features two floors; complete with access doors from walkways on all conveyors it incorporates a lifting beam complete with electric hoist.
This tower supports the head/discharge ends of the twin transfer conveyors and the tail end of the main silo feed conveyors which are integrally fitted with fixed chutes directing the discharge onto the silo feed conveyors.
SILO FEED TRANSFER CONVEYORS – AREA 3
From the transfer tower the twin conveyors elevate slightly and discharge via two-way diverter chutes onto the ‘Silo 2’ feed conveyors, or directly into ‘Silo 1’, which is achieved by the means of electrically actuated operated flap doors. The ‘Silo 2’ feed conveyors, also elevate slightly and discharge by a two-way diverter chutes directly onto the ‘Silo 3’ feed conveyors, or directly into ‘Silo 2’, again by the means of electrically actuated operated flap doors. The
final twin conveyor feed runs horizontally, and discharges directly into ‘Silo 3’. The entire twin feed conveyors are enclosed in heavy structure lattice gantries.
OUTBYE RECLAIM CONVEYORS – AREA 4 Situated at ground level next to the three storage silos, these twin 41m long troughed belt conveyors are designed to convey up to 345cu.m/hr of pre-shredded recycled and virgin wood with a bulk density of up to 500kg/cu.m, (based on the calculation of 125% of the desired 280cu.m/hr) which is the maximum the feed points will allow. Running horizontally these conveyors accept material from any one of the three reclaim chain conveyors (by others) and then elevate slightly to feed onto the outbye weigh belt transfer conveyors.
OUTBYE WEIGH BELT TRANSFER CONVEYORS
These twin trough belt conveyors receive feed from the outbye reclaim conveyors at a rate of 345m³/hr with a bulk density of up to 280m³/ hr.; which again is the maximum the feed points will allow. Elevating over the full length of 44 metres they then discharge via diverter chute onto the chain conveyors (by others) which feed the boiler house. Each of these conveyors
is fitted with a Board of Trade certified belt weigher, and moisture monitoring equipment.
A SUCCESSFUL INSTALLATION
As well as the design, detail, manufacture and supply of the twin conveying system Canning Conveyor completed and managed the site build up, installation, belt fitting, vulcanising and commissioning for the system. The support gantries and platforms, all steelwork, access platforms and gantries were all manufactured in the Canning workshops, delivered and erected on-site by the Canning engineers. Working above current health and safety standards the Canning team spent considerable time working alongside sub-contractors; constantly maintaining a high and efficient standard within all areas of the build including ATEX areas and installation of equipment. Andrew Canning, managing director, commented: “The project has allowed Canning Conveyor to demonstrate the quality of their engineering and project management competence coupled with the ability to be cost effective in a competitive market.” n
For more information contact Canning Conveyor on tel: 01909 486166 or visit:
www.canningconveyor.co.uk
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www.solidsandbulk.co.uk
Solids and Bulk Handling March 2014 35
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