Barrick Gold, Cortez Hills, USA
Commissioning 4th Quarter 2009
Role- Designer
Overland Conveyor Co was selected to provide specialized design support for the development of unique and custom control algorithms for a 11.6 km overland for the Cortez Hills gold mine in Nevada, USA. The system consists of several individual conveyors totaling over 14.5 km in length with the 11.6 km centerpiece curving horizontally down a large hill. Conveying capacity is set at 1000 tons per hour.
Tarong Transport Alliance, Australia
Feasibility Study 2007- Not Built
Role- Designer
The Tarong Transport Alliance selected Overland Conveyor Co to design a belt conveyance system for a 71 km long haul. This ground breaking 71 km system consisting of three flights of 30 km, 30 km and 11 km would include the 2 longest single flights in the world. They included intermediate drives and horizontal curves to fit within a narrow corridor between Tarong and the New Acland coal supply.
Mundra Port, India
Feasibility Study 2007- Not Built
Role- Designer
Howe (India) Pvt Ltd selected Overland Conveyor Co to provide specialized complex belt conveyor design expertise for project consisting of 4 each by 8 km Jetty Conveyors at 1800mm belt width and 6800 tph capacity. Project compared conventional conveyors and non-conventional cable belt.
Heidelberg Cement, CADMAN, USA
Commissioned 2006
Role- Designer
This downhill conveyor was designed for Cadman’s new limestone quarry in Washington State. The conveyor is designed to carry 1000 tph down the hill and 400 tph back up the return side. It overcomes difficult terrain over its length of 2 km, including a vertical drop of 274 m with 14 vertical and 2 horizontal curves, and a maximum slope of 18 degrees.
ALCOA Rockdale, TX, USA (Now Luminant Mining)
Commissioned 2005
Role- Designer with TKRI
Commissioned in June 2005, this 19.3 km single flight conveyor was the longest conventional conveyor in the world. It also included one intermediate drive and 11 horizontal curves. In order to negotiate 11 horizontal curves in plan, power was distributed between the head, tail and half way point on the conveyor. An intermediate tripper drive will be one of the first of its kind on a surface application. Overland Conveyor Co provided the intermediate drive support as well as the control algorithms for starting and stopping.
VALE, Belo Horizonte, Brazil
Feasibility Study 2004- Never Built
Role- Designer with Metso Minerals
Overland conveyor from Fazendao to Alegria. Single flight conveyor was 8.6 km long, 1200mm, 3425 tph, 4 horizontal curves and 1 intermediate drive to be built in 2005. Providing feasibility design service including static and dynamic analysis and horizontal curves
VALE, Soseggo, Brazil
Commissioned 2002
Role- Designer with Metso Minerals
This 3.5 km long, 1200mm wide carries 3000MTPH of iron ore with a total connect power of 1050kW. Because of the unique profile, this conveyor required special attention when stopping. However, a relatively inexpensive capstan was added to the take-up to increase take-up resistance during stopping which provided a simple solution to a potential problem.
Pipe Conveyor
Arch Coal, Skyline, Utah, USA- Pipe Conveyor
Commissioned 1992
Role- Startup Commissioning, Redesign
This 3.38 km Pipe Conveyor was installed in 1992 through a national forest; traversing 22 horizontal and 45 vertical curves. Provided re-design engineering services in order to add more power
Petrozuata, Venuzuela
Upgraded- 2005
Role- Upgrade Auditor
Located in the Zuata region of the Orinoco Heavy Oil Belt in central Venezuela. BC107 Pipe Conveyor is 2.3 km long, 1850mm width, carries 1300 tph with 1005 kW installed and has 1 horizontal and 2 vertical curves. OCC provided design services including static and dynamic analysis and starting control algorithms using fluid couplings and VFD’s in order to increase tonnage.
Construction Tunneling
TARP, Chicago, USA
Completed 1994
Role- Designer
This advancing conveyor followed a tunnel boring machine for 14 km. A 900mm wide belt running 3.6 mps carried 1500 tph of -50mm sandstone. Since the conveyor profile included 17 horizontal curves (each less than 400 m radius), controlling belt tensions was critical. As such, 10 intermediate drives were strategically located along the length (including the return belt) to facilitate negotiation of the tight horizontal curves.
Yucca Mountain, Nevada, USA
Completed 1995
Role- Designer
This advancing conveyor followed a tunnel boring machine for 7.9 km into and out of a mountain. The 900mm wide belt run at 3.2 mps and carried 1000 tph of -75mm rock. This conveyor was “U” shaped and included 2 horizontal curves turning the conveyor a total of 190 degrees. Six intermediate drives were utilized on both carry and return sides of the conveyor.
Barcelona Metro UTE Linea, Spain
Completed 2004
Role- Designer
This advancing conveyor followed a tunnel boring machine for a metro train system 8.4 km. This 1000mm wide belt is carrying 1500 tph with a total connect power of 1600kW. The system includes one 320kW Main Drive and four 2x160kW carry-side tripper drives within the single flight system. There were eight horizontal curves ranging from 280m to 350m radius.
UTE Guadarrama, Spain
Completed 2004
Role- Designer
This project consisted of two, 30 km tunnels under the Guadarram Mountain Range as part of the Madrid to Noroeste High Speed Rail Line. Each consisted of 2 conveyor flights: 13.4 km 1,150 tph, 900mm, 1,120 kW, 3 Intermediate Drives and 15.0 km, 1,150 tph, 900mm, 1,280kW This 15km, 915mm wide belt carried 1035 tph with a total connected power of 1250kW. The system included one 250kW Main Drive and four 250kW carry-side tripper drives within the single flight system. There are two horizontal curves.
Baumgartner Tunnel, St Louis, USA
Completed 2005
Role- Designer
This project consisted of a 3.6m diameter tunnel for the Metropolitan St. Louis (Missouri) Sewer District being bored 2004-5. The belt conveyor was 6.1 km, 600mm, 200 tph, 4 horizontal curves, 4 intermediate drives