conveyor info

GFE
GF Environmental Limited
8 Alcotts Green
Sandhurst
Gloucester
GL2 9PE
T +44 (0) 1452 730240
F +44 (0) 1452 730240
22
nd
[email protected]
www.gf-environmental.co.uk
January 2012
Emma Ottewell
Rotherham MBC
Planning Development Management
PO Box 652
Rotherham
S60 9DE
Dear Emma
Re:
Description of the Tubulator Conveyor System Proposed to be Used to
Transfer Wood Chip and Finished Pellets Within the Templeborough
Biomass Energy Development
Further to the queries relating to the conveyor that will form part of the Biomass Energy Development
to be built by Brite Partnership in the Templeborough area of Rotherham, I write to provide additional
information on the Tubulator conveyor system proposed for installation.
During routine operation of the Biomass Energy Development, virgin timber feedstocks will be
delivered by rail to the debarking and chipping plant to be installed on the DB Shenker rail head site.
The prepared wood chip will then be transferred across Sheffield Road to the pellet manufacturing
plant on the Firth Rixson site. The transfer of the wood chip material will take place using a Tubulator
conveyor, crossing Sheffield Road in an elevated section that will be located adjacent to the railway
viaduct that crosses the road, adjacent to the entrances to the two sites. Finished pellets will be
transferred back to the DB Shenker site, using the same conveyor, where they will be stored
temporarily prior to being loaded onto rail cars for onward despatch to end users.
The Tubulator conveyor links the wood pellet plant on the Firth Rixson site with the rail head transfer
building on the DB Shenker site. The conveyor exits the northern façade of the rail head transfer
building via an elevated section which is inclined downwards. The conveyor then travels at ground
level across the DB Shenker site, following a line to the west of the sidings and the main railway line.
At a point ~50 metres from Sheffield Road, the elevator then rises via an inclined section to a height
of ~10 metres, the same height as the parapet of the railway viaduct, and crosses the road as shown
in Drawing No. SD/385/08. Having crossed Sheffield Road, the conveyor is then directed across the
Firth Rixson site to the rear of the pellet plant building. The route taken by the Tubulator conveyor is
shown in Drawing No. SD/385/01B.
The elevated sections of the Tubulator conveyor will be supported from below by a series of
stanchions located at ~30 metre spacing, as shown indicatively in the 3D Impression of the section
crossing the Sheffield Road in Drawing No. SD/385/08.
Detailed design of the Biomass Energy Development has yet to be completed, and the manufacturer
of the Tubulator conveyor has yet to be decided. However, the following description is based upon
commercially available technology from one of the leading European manufacturers, and is indicative
of the technology that will be installed in association with the Biomass Energy Development.
Description of the Technology
Tubulator conveyors represent a more efficient way of transporting bulk goods such as wood chip,
sawdust, bark, grain, fodder, etc., with high capacity at high speeds and in an energy-saving,
enclosed system, that facilitates dust-free and spill-free transfer of materials.
GF Environmental Ltd
GFE
GF Environmental Limited
The conveyor is built as a closed system of steel tubes. Inside the conveyor tube, a rubber belt runs
at high speed on top of an air cushion provided by low energy fans. Tubulator conveyors can be used
for transfer of materials over long transport distances with large self-supporting spans. A cross-section
of a typical Tubulator conveyor is shown in the following figure.
As can be seen, there is an upper and lower conveyor belt that operate independently of one another,
and which can travel in opposite directions, facilitating the simultaneous transfer of wood chip to the
Firth Rixson site and finished pellets back to the DB Shenker site. Tubulator conveyors are totally
enclosed and spill-free, and have low noise level characteristics that will mean that the proposed
installation will have minimal impact on people working in the locality.
The capacity of the Tubulator conveyor required by the Biomass Energy Development has yet to be
confirmed, but for an ~1.5 tph capacity conveyor (Model No. CT1872), the structure would stand ~2.1
metres high with a width of ~1.8 metres, as shown in the following schematic.
The shape of the conveyor tube varies according to the manufacturer’s design, and the one shown in
the figure is based upon that of Bruks AB of Sweden. A copy of their technical leaflet on Tubulator
Conveyors is appended to this note. As stated earlier, the decision on the conveyor supplier will not
be made until the detailed design of the Biomass Energy Development is completed, which will
finalise the dimensions and shape of the conveyor to be installed. Nevertheless, Brite Partnership is
willing to accept planning conditions that would impose reasonable conditions on the dimensions,
shape and colour of the Tubulator conveyor to minimise the visual impact of the conveyor as it passes
over Sheffield Road.
Drawing No. SD/385/08 shows indicative elevations and dimensions of the proposed conveyor as it
crosses Sheffield Road, that are based upon the expected maximum dimensions that could be
available from various manufacturers. It is not possible to be more precise on this matter at the
present time, as the detailed information will only become available once a contract has been issued
for supply of the conveyor following completion of the detailed design stage.
With regard to mitigation of visual impact, Brite Partnership proposes to utilise a colour scheme that
will blend in with the brickwork of the railway viaduct, so that people travelling along Sheffield Road in
the Rotherham direction will become increasingly less aware of its existence. One thing that can be
guaranteed is that the elevated conveyor will be considerably less visually intrusive than the existing
pipe bridge that crosses Sheffield Road near to the roundabout with Bessemer Way.
Page 2 of 3
GF Environmental Ltd
GFE
GF Environmental Limited
I hope that this additional information is helpful in addressing the queries raised in connection with the
proposed conveyor system to be installed between the two sites associated with the Biomass Energy
Development.
Yours sincerely
Via e-mail
Geoff Fynes
Page 3 of 3
GF Environmental Ltd
DATA
CONVEYING CAPACITIES
ALTERNATIVE BELT RETURNS
at 150 m/minute belt speed
Air-cushioned
return
CT518 CT830 CT1036 CT1248 CT1454 CT1660
Idler roller return
CT500 CT800
–
–
–
–
Belt width (mm)
500
800
1000
1200
1400
1600
Capacity m3 loose/h*
300
800
1200
1800
2500
3300
* at bulk density 400 kg/m3
Air-cushioned return
Idler roller return
CONVEYOR SYSTEM
BRUKS – YOUR GLOBAL PARTNER
SWEDEN
BRUKS Celltec AB
Nygatan 24
891 34 Örnsköldsvik
Sweden
Phone: +46 (0)660-294550
Fax:
+46 (0)660-294570
[email protected]
GERMANY
USA
BRUKS Klöckner GmbH
Grabenstr. 1
57647 Hirtscheid
Germany
Phone: +49 (0)2661-280
Fax:
+49 (0)2661-28180
[email protected]
BRUKS Rockwood Inc.
5975 Shiloh Road, Suite 109
Alpharetta, GA 30005
USA
Phone: +1-770-849-0100
Fax:
+1-770-495-7195
[email protected]
W W W. B R U K S . C O M
BRUKS Gvc AB
Strandvägen 64
870 52 Nyland
Sweden
Phone: +46 (0)612-772480
Fax:
+46 (0)612 225 83
[email protected]
BRUKS TUBULATOR™
air cushion conveyor system meets the most
stringent industrial environmental demands on
dust-free, spill-free and low-noise operation.
Chips, fines, bark, pellets and other bulk materials
are transported at high capacities in an energy
saving system.
BRUKS Rotom
Box 46 · Västergatan
820 10 Arbrå
Sweden
Phone: +46 (0)278-642500
Fax:
+46 (0)278-642520
[email protected]
CHINA
BRUKS Rockwood Inc.
P.O. Box 2466
Snohomish, WA 98291
USA
Phone: +1-360-863-2947
[email protected]
BRUKS Beijing Representative Office
Zhu Zong Plaza, Room 1210
Chao Yang District
Huan Zhong Lu 25
100020 Beijing
China
Phone: +86-136-0114-8282
[email protected]
[email protected] - EN 10/08
BRUKS AB
Box 46 · Västergatan
820 10 Arbrå
Sweden
Phone: +46 (0)278-642500
Fax:
+46 (0)278-642520
[email protected]
T U B U L ATO R ™ C O N V E YO R S Y S T E M
4
BRUKS TUBULATOR™
CONVEYOR SYSTEM
EXPERIENCE
• More than 10 years of operating
uses the air cushion low-friction technique: the
experience
conveyor belt is resting on an air cushion created by the
• Length per conveyor unit:
air flow under the belt. The air is supplied by
20 m to 400 m
external, low-powered ventilators.
• Several hundreds of units in the
The conveyed material is transported on standard belts.
wood products industry
4
5
BENEFITS:
1
• Totally closed-in
EASY TO INSTALL
• Spill-free
1
6
HIGH AND LONG
• Self-supporting up to 25 m
LOW MAINTENANCE COST
Steel tower support allows
• minimum of moving parts
• ventilators can be mounted
Assembly on ground level
near the ground
• heights more than 30 m over
Lifting of pre-assembled sections Conveyor in position
2
ground level
5
• up to 75 m between the cable supports
• minimum of wear parts
Inspection
opening
• low belt wear
3
ENVIRONMENTALLY FRIENDLY
• Low noise level
• pre-mounted modular sections
2
NO WALKWAY NEEDED
Conveyor
belt
LOW OPERATING COSTS
• low-friction air cushion technology
Waste auger
means lower power consumption
• idle power is considerably lower than
for conventional belt conveyors
• reduced need for clean-up and
• total length per conveyor unit
up to 400 m
Material
Air channel
Inspection
opening
Air channel
Belt return
Inspection
opening
Inspection
opening
Control
cables
supervision
Enclosed tube
SMART
• Electrical and control cables can be
mounted inside the air channels
• No separate cable support needed
Power
cables
Filter
3
HIGH CONVEYING CAPACITY
LOW POWER CONSUMPTION horizontal transport of 200 t/h
147%
160 %
120 %
100 %
6
30
140 %
100%
108%
25
79%
20
Belt Conveyor
kW
80 %
15
60 %
40 %
10
20 %
5
0%
20 deg.
Troughed
Belt
30 deg.
Troughed
Belt
45 deg.
Troughed
Belt
0
Tubulator™
Tubulator™
15
50
100
150
200
250
300
Conveyor length, m
B R U K S T U B U L AT O R ™ - C O N V E Y O R