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Home > Mining Companies > Detour Gold Corporation > Articles > Mining and Processsing
Detour Gold Corporation

Mining and Processsing

Dec 22, 2013
This $1.5 billion construction project included the participation of AMEC for the procurement and construction management work and BBA for the detailed engineering. Conventional open pit mining methods are used to mine the Detour Lake deposit utilizing a fleet size of up to 32 haul trucks (CAT 795F - 320 tonnes), 2 electric cable shovels (34 m3), 3 electric-hydraulic shovels (28 m3), 6 drills and various ancillary equipment to support the mining operation. The open pit design incorporates 12 metre high benches with a 35 metre wide main haul road at a maximum grade of 10%.
 
The mining operation is using a conventional gravity, cyanidation and carbon-in-pulp processing facility initially operating at 55,000 tpd and ramping-up to 61,000 tpd.
 
The crushing circuit includes a larger gyratory crusher (60"X113" HD equipped with 1,000 kW) and the addition of a secondary crushing circuit (2X750 kW crushers). This system should allow for a higher throughput of fine feed (75 mm) to the SAG mill, providing efficiency and stability. In addition, this system is complemented with additional crushing capacity in the pebble crushing circuit (2X750 kW pebble crusher).
 
The grinding circuit consists of two parallel lines, each having one twin pinion semi-autogenous (SAG) mill (36'X20') and one twin pinion ball mill (26'X40.5'). The gravity circuit is expected to recover approximately 30% to 40% of the gold. The remaining gold in ore is sent to cyanidation followed by carbon in pulp (CIP) gold recovery. After carbon stripping, the gold is processed through electro-winning cells prior to gold pouring. The overall gold recovery is estimated at 91% with silver recovery estimated at 48%. The process plant was designed using the most current technology for both the process systems and equipment selection.



Detour Lake Property - Geology map

Detour Lake Deposit - Geology map


The cyanide solution is recycled to the head of the circuit to reduce operating costs and environmental impact. The remaining stream is detoxified through an SO2/air system before tailings deposition. The Company is initially using the same location for the tailings impoundment facility as the former operation. The design will be expanded to a second and then a third cell downstream containment system with capacity for approximately 480 million tonnes.

Source: http://www.detourgold.com/projects/detour-lake-mine/detour-lake-mine-mining/default.aspx

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Career Opportunities
SHAREPOINT DEVELOPER

We currently have an exciting opportunity for a SharePoint Developer to join our Business Intelligence Team. The SharePoint Developer will create and develop a business-changing Company SharePoint website.
MINE PLANNING TECHNICIAN TRAINEE
Based at the Detour Lake Mine site, we currently have an exciting opportunity for a Mine Planning Technician Trainee to join our Technical Services team reporting to the Mine Planning Superintendent.  
SENIOR MINE GEOLOGIST

Based at the Canadian Operations Centre in Timmins, ON, we currently have an exciting opportunity for a Senior Mine Geologist to join our Geology team reporting to the Geology Superintendent.   
PROCESS PLANT RELIABILITY ENGINEER
Based at the Detour Lake Mine site, we currently have an exciting opportunity for a Process Plant Reliability Engineer to join our Process Plant Maintenance team reporting to the Reliability Supervisor.
IT SUPPORT ANALYST

Based at the Corporate Office in Toronto, ON, we currently have an exciting opportunity for an IT Support Analyst to join our Business Intelligence division reporting to the VP, Business Intelligence.
PROCESS PLANT MAINTENANCE ELECTRICIAN

Based at the Detour Lake Mine site, we currently have an exciting opportunity for a Process Plant Maintenance Electrician to join our Process Plant Maintenance team reporting to the Process Plant Maintenance Electrical Supervisor.
HAUL TRUCK OPERATOR

Based at the Detour Lake Mine site, we currently have an exciting opportunity for a Haul Truck Operator to join our Mine Operations team reporting to the Mine Supervisor.
MANAGER, IT OPERATIONS CANADA

Based at the Canadian Operations Centre in Timmins, ON, we currently have an exciting opportunity for a Manager, IT Operations Canada to join our Business Intelligence Team reporting to the VP, Business Intelligence.
EXPLORATION COORDINATOR

Based at the Detour Lake Mine site, we currently have an exciting opportunity for a Exploration Coordinator to join our Exploration team, reporting to the Exploration Superintendent.
MANAGER, FP&A AND REPORTING

Based at the Toronto Corporate Office, we currently have an exciting opportunity for a Manager, FP&A and Reporting to join our finance team, reporting to the Corporate Controller.
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