The need to improve air quality in many North American mines is clear, with stringent new diesel emission regulations being proposed by MSHA. In response to these changing demands from customers, DCL has developed an electrically heated active sootfilter regeneration system for mining vehicles. Mining production vehicles that have often been borderline soot filter applications in the past will benefit from this technology. The system design is an electrically heated partial flow regeneration concept using a silicon carbide (SiC) wall flow filter and microprocessor-based controls. This paper presents the results obtained after six months of experimental system development and four months of in-mine prototype field trials. Backpressure behavior, regeneration time, emissions performance and temperature profiles are among some of the important parameters studied.
Emissions, Diesel Engine, Sootfilter, Diesel Particulate Filter, Exhaust Aftertreatment, Particulate Matter, Regeneration
Ceramic, wall-flow particulate filters have been an enabling technology for diese emission control for over fifteen years. First developed by