In mining, safety and efficiency are key. That’s why at Eolter we design high-performance bag filters capable of operating in highly demanding environments. We guarantee effective capture of dust and contaminant particles, protecting both workers and machinery while complying with the strictest regulatory standards.
We adapt our mining filtration systems based on dust type, airflow, and process, optimizing the overall performance of the facility and making maintenance easier in plants with high operational demands.
We develop filtration systems designed to protect critical components such as mills, screens, and hoppers, ensuring continuous operation even under high dust loads. A solution to guarantee operator health and compliance with environmental regulations.
We design each model to match key parameters such as type of dust, working temperature, humidity or particle load, which allows us to guarantee efficiency and durability in our equipment.
Emission source
Typical particle size range (µm)
Main characteristics
Drilling and blasting
10 – 1000 µm
Wide dispersion; coarse particles settle quickly, but fine respirable fractions (<10 µm) are also generated.
Primary and secondary crushing
50 – 500 µm
Abrasive dust, high concentration, predominantly >100 µm fractions.
Milling
1 – 100 µm
High presence of fine respirable dust, a mix of abrasive particles and metallic minerals.
Conveyor transport and transfer
20 – 300 µm
Heterogeneous dust with medium fractions; high particle load due to free-fall material transfer.
Drying plants / treatment kilns
1 – 50 µm
Fine to very fine dust; high temperature, possible presence of volatile metallic compounds.
Storage and stockpiling (silos, piles, hoppers)
10 – 500 µm
Dust variability depending on handling and wind; risk of diffuse emissions.
Loading and dispatch
5 – 200 µm
Fugitive emissions; mix of coarse and fine respirable particles.
They capture dust generated during various extraction, crushing, transport, and material handling processes. Their main function is to protect workers’ health, prevent environmental contamination, and reduce machinery wear.
They can retain very fine solid particles, such as silica, metallic dust, clays, oxides, and other residues present in gases or air from mining processes. The retained particle size can be less than 1 micron, depending on the filter media used.
It depends on dust type, airflow, operating conditions, and fabric type. Under normal conditions, bags can last between 1 and 2 years. Periodic inspections are recommended to detect wear, blockages, or loss of efficiency.
Technical fabrics such as polyester, aramid (Nomex), PPS, or PTFE are used, selected according to temperature, abrasiveness, and chemical composition of dust. These materials offer mechanical, thermal, and chemical resistance to withstand severe mining conditions.
They are used in processes such as rock crushing, pneumatic mineral transport, hopper discharge, bulk material handling, calcination kilns, mineral drying, and tunnel ventilation, among others. We adapt each system to the process stage and its specific technical requirements.
