High-speed centrifuge for maximum in liquid/solid separation

The BWLS1600 cuttings dryer incorporates a high-speed vertical centrifuge that achieves maximum liquid/solid separation in large-volume processing. This mechanism makes the BWLS1600 dryer one of the industry’s best performing and most dependable cutting dryers. The BWLS1600 dryer gives operators a critical advantage in meeting increasingly stringent environmental rules for cuttings disposal.

Versatility and high-performance

Drill cuttings are conveyed from the shakers to the BWLS1600 cuttings dryer through a variety of site-engineered conveyance systems that include

  • Gravity feed
  • CLEANCUT pneumatic transfer
  • Vacuum transfer
  • Screw conveyors

The flow of cuttings into the BWLS1600 dryer is PLC-controlled and continuously fed to yield optimum liquid/ solids separation. Once cuttings are introduced into the dryer’s charge hopper, widely spaced, independently adjustable flights continuously direct cuttings to the screen surface. Flights are tungsten carbide coated to reduce wear and ensure optimum tolerance.

Flights within the BWLS1600 dryer create a rolling action that promotes efficient separation and prevents screen plugging. Under high G-forces created by the large cone diameter, liquid/solids separation occurs instantly as cuttings make contact with the finer-mesh, high-capacity centrifuge screen. The end result is clean return fluid and dry solids discharge.

Improved efficiency means lower costs

The BWLS1600 cuttings dryer improves overall cost-efficiency by recovering costly drilling fluid that is recovered from cuttings, as well as whole mud lost from shaker failure and rig motion. Further, the BWLS1600 cuttings dryer produces lower waste volumes by generating dryer solids in both oil- and synthetic-base drilling fluid systems. The reduced waste volume can in turn dramatically reduce disposal costs.

Ease of maintenance

Routine flushing of the dryer system prevents solids buildup in the recovery area and minimizes shutdowns for cleaning. In addition, normal wear parts are easily accessible from the top of the unit; belts are easily changed without removing gear assembly. Interchangeable tungsten-carbide rotor blades protect rotor and gearbox from excessive erosion, minimizing main component failure and lowering maintenance cost.