dust, fume and mist extraction solutions for industrial applications

Dry filtration solutions are used in different industries such as metalworking, food and beverage or pharma and perform on a wide variety of challenging industrial applications, handling harmful, combustible dust and fumes including fine, fibrous, abrasive or heavy dust loads.

The so called dust and fume collectors are cleanable filtration solutions which are mostly used when the concentration of the air pollution in a facility is at or above 0.05 mg/m³ and a stationary filter leads to short filter life.

Dry dust and fume collectors utilise filter elements to separate airborne particles from the airstream. The filters get cleaned by a pulse of compressed air and the particles are discharged to a collection bin.

Camfil´s dust and fume extraction systems provide a near-limitless variety of configurations and airflow capabilities which is why the units are easily adaptable to specific work environments and spatial conditions. For example, the dust collectors can be tailored with optional explosion protection or containment systems in order to provide the necessary required safety. 

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Wet filtration is mostly used on industrial processes which release dust and other particles that are difficult or impossible to handle with dry filtration solutions like explosive, combustible, sticky or fibrous dusts.

While dry dust and fume collectors are equipped with filter elements to collect particles from the airflow, wet filtration systems use water as filter media. The functional principle of the so called wet scrubbers make use of the principle of mass inertia, through which the particle-laden process exhaust air is integrated into fine water droplets, thereby increasing the mass of the particles and thus safely separated. Afterwards the cleaned air can be returned back into the production or out of the facility. The collected waste water and the filtered solid substances have to be divided and disposed of correctly via appropriate waste streams. 

Wet scrubbers can be classified according to design features or method of liquid feed. The selection of the scrubber type is application-specific and depends on the required air volume, the pollutants to be separated, the particle size and the dust load in the process exhaust air.

Camfil offers Venturi and Vortex wet scrubbers. Whereas Venturi scrubbers are the best solution to handle fine particles with high dust loads, Vortex scrubbers are used to remove coarse particles with light to medium dust loads from exhaust gas streams. 

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Depending on the application and the processed material, machine tools use different liquids as emulsion, oil or MQL for cooling the tools within the machine, to clean the workpiece during the processing procedure or for chip disposal. As those metalworking fluids are injected with high pressure together with the speed of the tools, the fluids vaporise and create coolant mist inside the working area of the machines. 

Before opening the doors for changing tools or workpieces, the coolant mist has to be extracted from the working area of the machine. This is mandatory to protect the workers occupational health, to eliminate safety risks and to control the indoor air quality.

Machining mist collectors can be used as centralised or decentralised extraction solutions or for direct machine tool integration. Due to the latest filter technologies, Camfil´s industrial mist collectors combine the advantages of filtering separators and coalescence separators and provide best filtration efficiencies together with low energy consumption and long filter lifetimes. 

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