Mining

Mining vehicles operating underground in poorly ventilated areas, running 24 hours a day, 7 days a week present particularly challenging and important environmental concerns. If untreated, the diesel exhaust being emitted from these vehicles is inhaled by the operators before dissipating. Increased exposure to diesel exhaust is a factor in heart and lung disease and a possible carcinogen affecting your workers’ health, safety and productivity.

The harmful components of diesel exhaust include particulate matter (PM), carbon monoxide (CO), and hydrocarbons (HC). Stone Equipment offers three retrofit solutions designed specifically for mining applications; which are industry leading verified solutions*. In addition, our application engineering approach to your emission control mandate is the difference between a one-size-fits-all solution and a comfortable custom-fit solution insuring quick and easy installations:

• First Stone Equipment offers two different types of diesel oxidation catalyst (DOC), each available in two configurations. The AZ catalyst is supported on a ceramic substrates and affords excellent low temperature emissions reduction performance as well as EPA and ARB verifications. The AZ catalyst can be supplied in two product configurations.
• The Severe Duty AZ Purifier – offering 20-40%* reduction dependent on the vehicle or the,
• The Severe Duty AZ Purimuffler (a combined AZ Purifier catalyst and silencer solution to enhance the packaging of the DOC solution within the vehicle).
• Stone Equipment also offers the DZ and EZ diesel oxidation catalyst supported on a metallic substrate which affords exceptional resistance to vibration and affords the lowest possible exhaust backpressure.
• The DZ series was the first diesel purifier in the industry to feature quick release band clamps. This allows the center body to be readily removed for periodic engine-out opacity measurements or for purifier cleaning. These DZ purifiers are also available with modular add-on DMS and DMXS silencers.
• The EZ purifier offers the same metallic substrate based catalyst as the DZ purifier but in an all welded purifier to afford the most compact size and lower cost.
• The second option is the Cattrap, a passively regenerating diesel particulate filter which incorporates a base metal catalyst to provide >85% PM reduction without any increase in NO2 emissions. If NO2 emissions are not a concern in a given mining environment, then mining customers can also consider the use of the Purifilter. (See the Construction tab for further information about the Purifilter.)
• The third is the Combifilter, an actively regenerated DPF system that typically removes 90+ % of PM* while reducing NO2 emissions. The system is comprised of an integrated DPF and silencer assembly, and an off-board regeneration control panel or station.
• Depending on the Combifilter™ you choose, simply plug your Combifilter™ equipped vehicle in when you’re on lunch or when the days work is done and your equipment will always be ready for a day’s uninterrupted work.

These are solutions you can also feel good about, knowing your emission control dollars are serving the environment and your employees well with the best verified solution in the industry*. Because particulate exposure increases exponentially with proximity to the source, reducing emissions with these retrofit technologies in the vicinity of people provides critical public health benefits and minimizes a person’s exposure to these harmful emissions.