Large volumes of hard and abrasive dust particles are typical in most mining & mineral processing related applications. This dust type rapidly wears out filter media, leading to frequent maintenance or worse: filter leaks. Without effective dust emission control, equipment, process, employees and theenvironment may be at risk and production could be halted.
Cement manufacturing offers particularly difficult challenges to dust collectors. Based on data from installations, it's been estimated that as much as 1% of mining throughput can be lost to the surrounding environment. For a 700 TPH quarry, that's about seven tons per hour lost from conveyors, crushers and screens, and that does not include losses from stockpiles.
As your single filtration source for mining and minerals, Donaldson helps you navigate the complex world of dust collection specifically for the cement industry in the most efficient and environmentally-friendly way.
Donaldson Torit® advanced-technology cartridge dust collectors and a variety of filter media that conquer the challenges of most types of industrial dusts, including pharmaceutical, chemical, grain, bulk/powder, food, metal and others.
The best-in-class Downflo® Evolution (DFE) dust collector is capable of reducing equipment size and number of required filters by up to 40% compared to a typical cartridge collector.
Torit® PowerCore® dust collection technology use proprietary Ultra-Web nanofiber technology, which allows for a smaller, more efficient filter, reducing the overall footprint of the dust collector.
Extremely small but powerful package that handles high airflow, challenging particulate, and fits into the smallest places.
We offer a complete line of dependable, rugged baghouse dust collectors including RF, Dalamatic®, IRD, Unimaster® and many others to keep your operation running smoothly.
The Dalamatic® dust collector is an automatic reverse-jet fabric filter dust collector. It is most suitable for continuous process applications involving heavy-duty product recovery, or collection of large concentrations of nuisance dust.
The Modular Baghouse dust collector delivers reliable, efficient, continuous-duty, pulse-jet operation in a compact and modular design.
The following is a list of some of the typical areas at mines and quarries generating dust that can be controlled by dust collection equipment:
Years of experience in mining and quarry dust control has highlighted a number of significant points:
Good Design and Equipment Selection Is Essential
Anything marginal in either design or selection results in immediate or short term inadequacies in collector performance. The difference in selections between an effective and ineffective dust collector is often much narrower than in many other industries.
Everywhere That Material Is Supposed to Drop Through Air, Dust Is Generated
The most obvious dust generation points may seem to be conveyor transfer points and feed points from screens and crushers. But often, oversized feed-outs from screens or transfer of large product into bins will generate significant dust.
Budgetary constraints are important, so it is generally better to do some parts right than a lot of parts wrong.
Dust Collectors Philosophy: Source or Central
Two basic strategies exist for applying dust control to mines and quarries; source collection (putting the dust collector at the source of the dust emission so collected dust can be deposited directly back into the process stream) or centralized collection (putting the collector in a central location where dusty air is ducted to the collector and discharged as a separate process stream).
Source Collection Operational Advantages Include:
The following points need to be considered in the selection of central dust collectors for mining and quarrying applications:
Source collection systems may be easier to deal with since hoppers and ducting are often not used. But when using source collection, the following should be considered:
Donaldson offers many filtration options for the mining industry.