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Practical example

Welding fumes and dry dusts

Welding fumes and dry dust cause air pollution in metalworking shops. Space-saving mechanical group and central extraction systems purify the air and improve occupational safety and employee satisfaction through adjustable air inlets and high, effective extraction volumes.

Central extraction for crankshaft plant

Flexible filtration systems for oil, emulsion and dust particles can be customized to suit every requirement. Central filtration systems designed for central extraction can be used to remove pollutants in a space-saving and maintenance-optimized way, even from complex systems made up of a wide range of machine tools (such as lathes and grinding machines) with oil and emulsion lubricants. Custom solutions result in optimized production when carrying out complete machining at large plants.

Aerosols and fumes in machining centers

Turning or milling large workpieces can result in a large amount of emulsion mist as well as fumes which can escape if the machine hood is not completely closed. LTA’s task was to prevent this. Here an electrostatic filtration system is used to remove pollutants while the purified exhaust air from the air filter is used to create an air curtain over the machine openings to prevent emulsion mist or fumes that were not collected from escaping.

Extruder vapor with plasticizers

The plastic vapors that arise in the plastics processing industry often contain plasticizers which must not be mixed with water. These substances crystallize at a defined temperature which is why the temperature must be monitored to ensure it does not fall below this during the process. The solution is to keep the vapors above the crystallization temperature while the process is underway. The plastics processing industry benefits from LTA air filters in a stainless steel design.

Oil smoke and Aquatensid in hardening machines

During steel processing on a hardening machine, vapors, gases, smoke and other combustion particles form on the induction coils and must be captured and removed as efficiently as possible. If oil is used for quenching, then the resulting oil smoke is captured by nozzle plates, for example, and can be extracted and removed using electrostatic filtration systems. The material is then often tempered once again and cooled with the aid of an Aquatensid, for example. Mechanical filtration systems have proven themselves in this regard.

Air pollution in paint drying ovens

Products wetted with water-soluble paint, for example, are dried in induction paint drying ovens. Electrostatic filtration systems extract and remove the resulting air pollution. The high filtration efficiency and re-usable filter elements enable sustainable and environmentally-friendly production.

Combination machining – chip and aerosol extraction

An extremely wide range of materials are often machined on lathes and milling machines. LTA filtration systems extract and remove the resulting mix of air pollution. For example, glass-fiber reinforced plastic (GFRP) is machined dry (chips) and aluminum with is machined with minimal quantity lubrication (MQL) (sticky dusts). A special chip capturing channel, the combination of various filter elements incl. a pre-coating unit and other clever solutions mean that just one air filter can be used instead of two different ones.

Heat recovery on annealing furnaces

When silicone undergoes vulcanization processes in annealing furnaces, silicone vapors arise which require extracted. An electrostatic filtration system removes the pollutants while also recovering the heat contained in the air flow. A powerful fan negates the pressure drop of a heat exchanger. This system leaves the air pollutant-free while reducing the energy consumption of the annealing furnace.