Industrial exhaust gas cleaning

Dust separation

Emission control is a milestone in global environmental protection for humans, animals and the earth itself. But more important for the process industry, filtration systems allows to increase the production efficiency, brings performance guarantees and save energy costs beside the most important part – pollution control.

GEA provide a cost cutting solution to you air quality or dust collection challenge. For the precipitation of dust particulates from industrial gases GEA offers the following technologies.

Baghouse filters

Bagfilters are the technology of choice in many cases when low dust content is needed for gas cleaning. Their ability to remove large Ioads on a non-selective basis has made them important for many applications. 

GEA´s unique low pressure technology is especially applicable for treatment of large gas flows. This technology has been optimized for large, multiple-compartment designs, containing up to 1,150 bags at 8 meter length each which equals around 3,700 square meter filtration area per cell.  Pulse air equipment required is minimal. This results in low maintenance costs and minimum initial investment. 

Low pressure bagfilters are operating in the cement-, the iron and steel and in the non-ferrous metallurgical industry. 

In case of changes in the upstream process or if lower clean gas dust loads are required it can become necessary to change from a dry precipitator to a baghouse filter. GEA is expert for such retrofits where fabric filter components are installed in the existing ESP casing.

Cyclones and Dry Electrostatic Precipitators

  • Cyclones and Dry Electrostatic Precipitators
  • Cyclones are used for the pre-dedusting of waste gases with high dust load

Scrubbers are used for dust removal in saturated waste gases. GEA has developed special scrubbers for different applications:

Radial flow scrubbers (RFS) are adjustable high-efficiency scrubbers which have been developed by GEA especially for the conditions in the non-ferrous metallurgical industry.

This equipment allows keeping the necessary pressure drop and consequently a uniform scrubbing efficiency, even in case of fluctuating gas volumes. 

In the steel industry the annular gap scrubber is fulfilling the same function.

Wet Electrostatic Precipitators (WESP)

Wet electrostatic precipitators (WESP) are used to remove particulates and aerosols from saturated gases. They are operating with high efficiencies and can reach very low clean gas loads below 1 mg/ Nm3. Usually WESPs are built downstream scrubbers.

Products & technologies

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