Overland Mining Conveyors for Copper Ore

On behalf of a global mining organization, Atwell Construction teamed with a materials handling system provider to design and install numerous overall and portable conveyors at several southwestern mining sites. Projects included:

  • Replacement of a 2360, 7,600-foot x 72-inch overland
    conveyor and supporting infrastructure for a leach pad
  • Installation of a new conveyor of the same size and
    supporting the extension of the agglomerator feed conveyor
  • Installation of a 300-foot x 72-inch portable staking conveyor,
    with the complete build-out of structural steel, mechanical
    and electrical systems

EPC Upgrade for Electric Utility

A Great Plains-based electric utility company trusted Atwell to deliver construction upgrades to an existing substation. The project included the removal and replacement of two primary 115/69kV power transformers, and the installation of 69kV CCVTs, 15kV switching cabinet, station service transformer, 15kV PTs, relays and associated equipment.

Based on the client’s timeline and preferences, Atwell approached the project using the Engineer-Procure-Construct (EPC) method. Atwell was responsible for the successful design, material purchasing oversight and general contracting of this critical facility.

Increased Pumping, Increased Production

Atwell Construction was hired by a global mining organization to install an improved raffinate pumping system, resulting in an increase in copper production at this Southwest facility. Critical to the copper extraction process, the new system installation involved a large, stainless steel piping system and High-Density Polyethylene (HDPE) piping, two 500-horsepower pumps, and ancillary structure. With a contract value of nearly $2 million, this upgrade was delivered on time and on budget. Specific services included: civil and concrete placement; structural and mechanical installation; stainless steel and HDPE piping fabrication and installation; and the electrical and instrumentation upgrades required.

Utility System Upgrades

A private utility company hired Atwell Construction to oversee roadway and utility improvements to accommodate additional industrial activity in the region. Phase I involved the removal and replacement of a six-inch water main line running parallel to a two-mile stretch of roadway. The second phase addressed necessary paving improvements to the same stretch of road, leading to a large-scale industrial processing facility. Specific services included: project management; subcontract management for paving activities; direct-hire management and installation of traffic control; and the piping, mechanical and electrical for an upgraded potable water booster station