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Canada
Brule Mine

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 Location:
36 km S from Chetwynd, British Columbia, Canada

  Address:
P.O. Box 2140
Tumbler Ridge
British Columbia, Canada
V0C 2W0
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (metallurgical)
  • Coal (thermal)
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
  • Dense media separation
Mine Life8 years (as of Jan 1, 2014)
Conuma Coal Resources Limited resumed production at the Brule mine late in 2016.

In 2019 the company posted on its website that the mine produces 2.5+ million tonnes of metallurgical coal per year.


Owners & OPERATOR

Source:
CompanyInterestOwnership
ERP Compliant Fuels, LLC 100 % Indirect
Conuma Coal Resources Ltd. (operator) 100 % Direct
Conuma Coal Resources Ltd. (Conuma Coal) is a subsidiary of West Virginia-based mining company ERP Compliant Fuels.

Deposit Type

  • Sedimentary


Summary:

The Brule deposit is comprised of three LV bituminous coal seams deposited as layers in sedimentary rock formations. The three potentially economic seams are Seam 60, Upper Seam and Lower Seam. The Blind deposit, located to the northeast of the Brule deposit (see Figure 5) has two inferred and potentially economic seams: the Upper Seam and Lower Seam. The coal seams and sediments were deposited in an inter fingered and alternating succession of transgressive and regressive cycles along the Western Canadian Sedimentary Basin, and therefore are variable in thickness and coal quality.

Generally for the Brule deposit, the folds trend to the northwest and are open, regular, consistent and predictable. The wavelength of the folds is greater than 1.5 km and the bedding inclinations average around 30ยบ. Six faults have been identified in the area of interest in the Brule deposit. These faults are limited in extent and are generally of reverse orientation.

The Blind deposit is centered on a single northeast-facing steeply dipping anticline limb (monocline). The modeled geological structure, based on drill hole intercepts and surface outcrops, includes a centrally-located drag structure, single reverse orientation fault and minor seam overturn toward the southeast.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Brule Mine uses standard open-pit mining equipment that is diesel fuel-powered. This equipment includes hydraulic excavators, front end loaders, off-highway rear-dump haulage trucks, rotary drills and support machinery. About 35% of the waste material excavated to uncover coal (Seam 60, Upper Seam and Lower Seam) will be placed in waste dumps to the south and east of the developing pit.

The remaining 65% of waste material will be backfilled into the resulting pit to minimize impact on the environment and reduce cost.

The mining equipment is being used to carry out unit operations that are designed to minimize coal loss and dilution. Coal wedge removal, contact cleaning and excavation are planned to be performed with hydraulic backhoes operating in modes that are designed to eliminate any blasting or dozing of the coal seams. Backhoe operating modes should change as seam dips change to optimize coal recovery.


Crushing and Grinding


Processing

  • Flotation
  • Dense media separation

Source: Subscription required

Summary:

Brule is an open-pit coal mine producing ultra low volatile pulverized coal injection ("ULV PCI").

All coal mined will be transported to the Willow Creek CHPP for sizing (rotary breaker) and, when required, for processing to reduce the coal ash content to 8% percent on an air-dried basis. The new Willow Creek CHPP uses standard coal washing methods of heavy media cyclones, water only cyclones, spiral circuits and flotation to achieve a yield equivalent to the original Sandwell flowsheet.

Coarse and fine (minor) tailings from the preparation plant will be transported to designated storage areas on the Willow Creek mine site. Average projected clean coal yield from ROM production is 86.2% and 90.4% when moisture gains are taken into account.


Production:

CommodityProductUnits2018201720142013
Coal (metallurgical) ROM coal Mt  ......  Subscription required2.3
Coal (metallurgical) Clean coal Mt 11.4
Subscription required - Subscription is required.

Operational Metrics:

Metrics2017
Annual mining capacity  ......  Subscription required

Reserves at December 31, 2016:

CategoryTonnage Commodity
Proven 16,300,000 t Coal (metallurgical)


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 2, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 2, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 2, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 2, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 2, 2020
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Other 2017
Other 2017
Other 2017
Form 10-K 2014
Press Release 2014
Technical Report 2011
Subscription required - Subscription is required.

Aerial view:

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