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Canada
Donkin Mine

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 Location:
10 km E from Glace Bay, Nova Scotia, Canada

  Address:
750 Long Beach Road
Donkin
Nova Scotia, Canada
B1A6P8
Phone  ...  Subscription required
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Coal (metallurgical)
Mining Method
  • Continuous
  • Room-and-pillar
Processing
  • Gravity separation
  • Wash plant
  • CHPP
  • Spiral concentrator / separator
  • Flotation
  • Dense media separation
Mine Life30 years (as of Jan 1, 2021)
On March 30, 2020, Kameron announced that it was ceasing production operations at the Donkin Mine due to adverse geologic conditions. The Mine will not be sealed and no mining equipment has been removed from site. The Mine is being maintained by a small staff to ventilate and keep the facility dewatered during an idled phase of care and maintenance for an indeterminate period of time.

There is no guarantee that operations will ever recommence at Donkin under Kameron’s ownership or otherwise.


Owners

Source: p. 21
CompanyInterestOwnership
Kameron Collieries ULC (operator) 100 % Direct
Cline Group LLC 100 % Indirect

Deposit Type

  • Sedimentary


Summary:

All coal resources reported within the Donkin Lease fall within the underground category. There are no resources suitable for surface mining. Coal resources that are deeper than 700 m rock cover are present at Donkin and would be classified as nonconventional at this stage. Non-conventional resources have not been included in this resource statement. Sterilized resources are those that are unavailable for mining due to environmental or other restrictions. At Donkin, coal within 75 m of an offshore drill hole that intersects the coal seam in question is unable to be mined. For a 2-m thick seam, this equates to approximately 50,000 tonnes of coal. For the three potentially mineable seams, Lloyd Cove, Hub and Harbour, approximately 1.3 million tonnes (Mt) of coal would be sterilized by this legislative requirement. In addition, seams under less than 200 m of solid rock cover were not considered for longwall mining. An estimate of in-situ resources of coal in the three seams where the rock cover is between 100-m and 200-m thick is included in the Inferred category in this report. Bord-and-pillar mining may be possible in parts of these areas, as it has in other submarine mines in the Sydney Coalfield. No resources were estimated for coal under less than 100 m cover.


Mining Methods

  • Continuous
  • Room-and-pillar


Summary:

Access to the Donkin Project Harbour and Hub seam reserves will be through the two existing tunnels and eventually a third tunnel. The Hub Seam will be accessed through two incline drifts driven from the Harbour Seam. The coal will be extracted using the room-and-pillar (bord-and-pillar) mining method using CMs. Secondary extraction of the pillars is proposed. At full production, four CM sections will be in operation. ROM production ranges from 2.4 Mtpa to 3.8 Mtpa with an average of approximately 3.5 Mtpa. There are 101 million in-situ tonnes of Harbour Seam resource and 73 million in-situ tonnes of Hub Seam resource within the indicated boundary. The proposed mine will recover approximately 33% of these ROM tonnes (58 Mt), of which approximately 48 Mt are saleable.

At the proposed rate of production, the mine exhausts the Harbour Seam reserves in 2041 and the Hub Seam reserves in approximately 2046.


Crushing and Grinding


Processing

  • Gravity separation
  • Wash plant
  • CHPP
  • Spiral concentrator / separator
  • Flotation
  • Dense media separation

Source: Subscription required

Summary:

The CHPP includes all of the material handling, coal processing equipment and stockpiles necessary to process the 3.5 Mtpa ROM extracted by the mine and produce approximately 2.75 Mtpa of clean saleable coal with quality parameters suitable for sale into international coking and thermal coal market and domestic thermal coal markets. Based on testing of samples mostly collected from the Harbour Seam at the base of the two tunnels, the nominal overall CPP yield based on modeling simulations is 84%, and the yield ranged from 76% to 92%.

The proposed CHPP system involves the following items:
- A raw coal stockpile, reclaim and sizing system to prepare a minus 50 mm raw coal feed to the CPP. - A 650 tonnes per hour (tph) processing plant featuring a single stage large diameter dense medium cyclone to process coal, spirals to process the mid-size material and flotation to beneficiate the fine coal.
- A product sampling and reclaim system to prepare product coal ready fo ........


Production:

CommodityUnits201920182017
Coal (metallurgical) Mt  ......  Subscription required0.50.2
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.


Reserves at December 31, 2020:

CategoryTonnage Commodity
Probable 58 Mt Coal (metallurgical)
Indicated 174 Mt Coal (metallurgical)
Inferred 172 Mt Coal (metallurgical)


Heavy Mobile Equipment as of May 26, 2017:
HME TypeQuantityStatus
Continuous Miner ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required Proposed
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 16, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2019
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Corporate Presentation 2018
Other 2018
Management Discussion & Analysis 2017
Technical Report 2012
Subscription required - Subscription is required.

Aerial view:

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