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Mining

Every mining operation is unique. With extensive field experience and application expertise, MikroPul delivers reliable, durable, and high-performance dust collection systems designed specifically for the realities of mining and mineral processing.

The pressure on modern mines

Modern mining challenges, turned into competitive strengths

Today's mines and quarries operate under combined operational, financial and regulatory pressure. Crushing, screening, conveying and loading continuously generate airborne particulate — and every gramme that leaves the process is product, profit and compliance lost.

Operational

Dusty environments cause continuous loss. Excessive dust results in:

Loss of valuable product
Equipment wear and abrasion
Housekeeping challenges
Reduced visibility and unsafe conditions
Process inefficiencies

Financial

Dust emissions hit profitability directly through:

Product lost to the atmosphere
Higher maintenance from abrasive dust
Material-handling blockages and bridging
Higher costs from inefficient system design

Regulatory

With residential developments closer than ever, tolerance for visible dust is low. Authorities expect:

No visible dust emissions
Controlled fallout beyond plant boundaries
Defined air-quality and exposure limits

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Recover Valuable Product

Why disciplined
investment matters

Budgetary constraints make it critical to invest correctly. It is generally better to execute selected areas properly than to under-design multiple areas and live with ongoing performance issues. Efficient dust control protects both the environment and the workforce.

Parameter	Typical limit
Coarse particulate (ambient)	35 µg/m³
Fine particulate (ambient)	15 µg/m³
Total dust (workplace)	15 mg/m³
Respirable dust (workplace)	5 mg/m³
Crystalline silica (NIOSH PEL)	0.05 mg/m³

~7 t/h
In a 700 TPH quarry, up to 1% of total throughput can be lost to the surrounding environment — roughly seven tonnes per hour from conveyors, crushers and screens, before stockpile losses.

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Emission hotspots across the process

Find the dust before it finds you

Effective dust control needs a systematic view of the whole operation. Rather than chasing isolated collectors, MikroPul identifies where dust is generated and applies targeted capture and filtration — handled as four connected stages.

Source capture

Collectors placed directly at emission points — crushers, screens, conveyor transfers, truck and rail dumps, bin vents and loading stations — engineered around airflow, material and layout.

Filtration

The optimal concept is chosen from dust loading, particle size, moisture, temperature and abrasiveness — setting filter media, air-to-cloth ratio, airflow and cleaning method for stable performance.

Dust handling & disposal

Collected dust is managed to avoid blockages, abrasion, secondary emissions and excessive maintenance — discharged via hoppers, screw conveyors or returned directly to process.

Safe clean-air discharge

Filtered air is discharged in compliance with environmental regulations while plant operations stay stable and predictable.

Typical emission hotspots

Rail & truck dump stations Crushers & screens Conveyor transfer points Ball mills & grinding circuits Bin & silo filling Product loading (rail, barge, truck) Autoclaves & process vessels

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Choosing the right concept

Source or central dust collection

Mining dust control is built on one of two approaches. The right choice depends on plant layout, material handling, the value of recovered product and your operational philosophy — both deliver effective emission control when engineered correctly.

Source collection

Capture at each emission point

Collectors sit directly at crushers, transfers, screens or bin vents, capturing dust where it is generated and often returning recovered material straight to the process stream.

Less ductwork and fewer discharge devices
Lower capital cost, simpler design
Maintain one collector without stopping the plant
Ideal where recovered dust has product value

Central collection

A single, dedicated filtration stream

Multiple sources are ducted to one larger collector, treating several process points in a single filtration system with a centralized disposal concept.

Simplifies plant-wide monitoring
Preferred when dust can't return to product
Suits centralised disposal requirements
Needs careful airflow distribution design

Proven across a wide range of materials

Nederman MikroPul has extensive experience supplying dust control to mining and mineral processing operations handling:

Iron ore

Nickel

Copper

Gold

Silver

Lead & zinc

Bauxite & aluminium

Coal (incl. PRB)

Diamond

Potash

Molybdenum

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Engineering for abrasive dust

Mining and quarry dust is often highly abrasive and varies with material and operating conditions. MikroPul evaluates incoming air velocity and particle impact, internal airflow distribution, dust-removal mechanisms and hopper design — and selects filter media resistant to abrasion and blinding. For source collectors used as bin vents, units are positioned away from the material inlet to reduce wear, while moisture, oil and water contamination are monitored to protect filtration performance.

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Guidelines for practical dust control

Every mining operation is unique - good design isn't optional

Years of field experience in mining and quarry applications point to a handful of principles that separate a system that performs from one that disappoints.

Design and selection decide everything

Good design and proper equipment selection are essential. Marginal design decisions quickly result in inadequate collector performance that is difficult and costly to correct later.

Target the real dust sources

Conveyor transfer points, crushers, screens, oversized feed-outs and bin transfers are all significant dust sources. Capture is engineered where material is handled, not where it is convenient.

Spend the budget where it counts

Budget matters. It is better to execute targeted solutions correctly than to implement broad but ineffective systems across the whole plant and live with ongoing performance issues.

Build on deep process knowledge

A broad installation base across crushers, screens, ball mills, truck dumps, conveyor transfers, bin filling, product loading and autoclaves turns field experience into reliable, durable systems..

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Download the Brochure

Clean Air, Dust Control and Product Recovery for Mining & Mineral Processing

Protecting People, Uptime, Productivity and Compliance with Nederman MikroPul

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Core air pollution control equipment

A portfolio built for abrasive, high-load dust

The optimal technology is selected from the characteristics of the process dust and the operating environment. Five core collector families cover the range of mining and mineral-processing duties.

Mikro-Pulsaire® pulse-jet collectors

Versatile filtration for demanding dust loads

Engineered inlet technology distributes airflow evenly across the filter bags; periodic compressed-air pulse cleaning removes the dust cake and holds a stable pressure drop for continuous performance.

High filtration efficiency
Continuous operation, stable pressure drop
Optimised airflow distribution, extended bag life

RAF reverse air filters

RAF II & RAF-IS — reliable cleaning without compressed air

Bags are cleaned sequentially using a reverse-air principle. The RAF II design gives continuous cleaning at a low pressure drop, reducing fan load and extending bag life. The RAF-IS variant is configured specifically for coal handling and combustible-dust applications.

No compressed air required
Low pressure drop, reduced fan power
Proven for coal and combustible dust

Wet scrubbers

For sticky, humid or combustible atmospheres

Dust-laden gas contacts water or another scrubbing liquid so particles are captured and removed — well suited where dry filtration is difficult, and able to control certain gaseous pollutants at the same time.

Effective for sticky, explosive or combustible dust
Reliable in high-humidity processes
Simultaneous dust and gaseous-pollutant removal

Cyclones

Robust coarse-particle pre-separation

Dust-laden gas enters tangentially; centrifugal force drops heavier particles into the hopper while cleaned air exits. Often used ahead of filtration to cut the dust load on downstream equipment.

Effective pre-separation of coarse particles
Reduces load on downstream filters
Robust design, low maintenance

Cartridge collectors

Compact, high-efficiency capture for smaller airflows

Pleated cartridge elements deliver high filtration efficiency in a small footprint — well suited to space-constrained, localised dust collection with easy filter access and maintenance.

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Total cost of ownership

A smarter investment over the plant lifetime

Well-designed dust control protects uptime, optimises cost and secures compliance. The value shows up across three areas over the life of the plant.

Capital (CapEX)

Focusing on the most critical emission points — crushers, screens, conveyor transfers and load-out stations — and correctly sizing equipment avoids unnecessary investment in oversized systems.

Operating (OpEX)

Product recovery

Airborne dust is lost product. Effective capture returns valuable material to the process stream, increasing recoverable yield.

Energy efficiency

Optimised airflow and efficient filtration hold a low pressure drop and reduce fan energy.

Maintenance reduction

Robust design and reliable discharge reduce abrasion, prevent blockages and extend filter life.

Uptime value

Reliable dust control improves plant stability across crushing, screening, conveying and loading. By reducing dust accumulation and protecting equipment, well-designed systems help prevent production interruptions and support safe working conditions.

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A strong partner for mining worldwide

Backed by MikroPul's dust-control expertise and Nederman's global clean-air network, with thousands of references in mining and mineral processing.

Global scale & financial stabilityA dedicated environmental-technology leader with the resources to support complex solutions for their full lifetime.
Depth of expertiseDecades of experience and thousands of references across mining and mineral processing.
Continuity you can rely onStrengthened through strategic acquisitions that expand capability and reduce supplier-continuity risk.
Support that protects availabilityService capacity, spare availability and upgrade pathways reduce disruption risk over the asset lifetime.

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Long-Term Partnership

Future-proofing your operation

From first study to upgrade, Nederman MikroPul supports the asphalt plant across its full lifecycle.

Design & Planning

Pre-studies, profitability calculations and detailed planning to define the right concept for your foundry.

Delivery & Installation

Construction, installation and commissioning of complete systems.

Service & Maintenance

Maintenance, troubleshooting and on-call service to keep equipment running.

Monitoring & Control

Continuous monitoring of key parameters, to provide early warnings and prevent unplanned downtime.

Optimizing & Upgrades

Performance upgrades, retrofits and extensions as capacity or regulatory requirements change.

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Common things to know

Frequently Asked Questions

Mining dust control questions

How much product can a mine lose to dust?

Based on installation data, it has been estimated that up to 1% of total mining throughput can be lost to the surrounding environment. In a 700 TPH quarry, that is roughly seven tons per hour from conveyors, crushers and screens — before stockpile losses are counted. Effective capture returns much of this valuable material to the process stream.

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Should I use source collection or central collection?

It depends on plant layout, material handling, the value of recovered product and your operational philosophy. Source collection places collectors at each emission point — less ductwork, lower capital cost and easier maintenance, and ideal when recovered dust has product value. Central collection ducts several sources to one larger collector, simplifying monitoring and suiting centralized disposal. Both control emissions effectively when engineered correctly.

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Which collector technology suits abrasive mining dust?

he right choice comes from the dust and operating environment. Mikro-Pulsaire® pulse-jet collectors handle demanding loads with stable pressure drop; RAF reverse air filters clean without compressed air and are proven for coal and combustible dust; wet scrubbers suit sticky, humid or combustible atmospheres; cyclones pre-separate coarse particles; and cartridge collectors give compact, high-efficiency capture for smaller airflows. MikroPul engineers select filter media resistant to abrasion and blinding.

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What dust emission limits apply to mines and quarries?

Typical figures such as 35 µg/m³ for coarse and 15 µg/m³ for fine ambient particulate, 15 mg/m³ total and 5 mg/m³ respirable workplace dust, and a NIOSH crystalline-silica PEL of 0.05 mg/m³. Limits are often lower in non-attainment areas and where silica is present. Always confirm the values that apply to your specific site and jurisdiction.

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What makes a mining dust control system actually perform?

In our experience to make a mining dust control system work at peak performance there are a few core principles: dust is generated anywhere material falls through air, so capture must target the real sources — conveyor transfer points, crushers, screens, oversized feed-outs and bin transfers. Good design and proper equipment selection are essential, because marginal design decisions quickly result in inadequate collector performance. And budget is best spent on targeted solutions executed correctly rather than broad but ineffective systems.

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What materials has Nederman MikroPul handled?

Extensive experience spans iron ore, nickel, copper, gold, silver, lead and zinc, bauxite and aluminum, coal, diamond, potash and molybdenum. Each material's stickiness, abrasiveness, particle-size distribution, moisture, dust loading and temperature is evaluated together with plant layout to determine the optimal solution.

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Let's Solve Your Problems

Talk to a Process Technology Expert Today

Connect with Nederman MikroPul for mining dust collection solutions.

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Nederman MikroPul Americas

Dust Collection Systems

Protecting People, Uptime, Performance with Nederman MikroPul. Thousands of Installations Worldwide

4433 Chesapeake Dr, Charlotte, NC 28216, USA

+1 704-285-1754

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Mining