LUEHR FILTER GmbH

Enzer Str. 26, 31655 Stadthagen
Germany
Telephone +49 5721 7080
Fax +49 5721 708154
project@luehr-filter.com

This company is co-exhibitor of
EWK Umwelttechnik GmbH

Hall map

glasstec 2018 hall map (Hall 15): stand G30

Fairground map

glasstec 2018 fairground map: Hall 15

Our range of products

Product categories

  • 02  Glass processing and finishing
  • 02.12  Environmental protection/Recycling
  • 02.12.02  Glass Melting / Waste gas technologies
  • 02.12.02.01  Filter technologies (flue gas and electrostatic)

Filter technologies (flue gas and electrostatic)

  • 02  Glass processing and finishing
  • 02.12  Environmental protection/Recycling
  • 02.12.02  Glass Melting / Waste gas technologies
  • 02.12.02.02  NOx reduction technology, emission reduction technology

NOx reduction technology, emission reduction technology

  • 02  Glass processing and finishing
  • 02.12  Environmental protection/Recycling
  • 02.12.03  Heat recovery installations

Heat recovery installations

Our products

Product category: Filter technologies (flue gas and electrostatic)

Flat-bag filter

The constructive features of the horizontally or vertically installed flat-bag filter elements particularly in combination with the different - off line - cleaning systems included in the range of products allow

  • the reliable observance of requested residual particle contents in the clean gas
  • exceptionally long filter fabric service lives
at low space requirement and low maintenance Flat-bag filters are used for gas volumes of 1,000 m³/h up to more than 1,000.000 m³/h.

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Product category: NOx reduction technology, emission reduction technology

Sorption procedures

LUEHR FILTER has developed different procedures for the following applications:  
  • Chemisorption of acid crude gases such as HF, HCl and SOx with Ca- or Na-based additive powders
  • Adsorption of PCDD/ PCDF as well as Hg and Hg-compounds by means of activated carbon/ activated coke or other additives with large internal surface
The sorption procedures applied by us are based on the LUEHR Conditioning Rotor-Recycle Process (KUV) Particularly when using Ca-based additive powders, the realisation of high additive particle recycle rates proved to lead to a definite improvement of the separation efficiency for acid crude gas components such as HF, HCl and SO2 and/ or to a reduction in the additive powder injection quantity. The LUEHR Conditioning Rotor-Recycle Process allows the reliable re-circulation of large recycle quantities even if problematic particles such as CaCl2 form a larger part of the particle spectrum. A widely homogeneous distribution of the re-circulated particles in the flue gas flow will be achieved. Conveyance with pneumatic methods, which is prone to frequent breakdowns, is not used.

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Product category: Heat recovery installations

Flat-tube heat exchanger

Flat-tube heat exchangers are - if necessary - installed upstream of flat-bag filters in order to reduce the temperature of the gases to be cleaned to a temperature admissible for the filter fabric or to adjust the optimum process temperature. During development of this heat exchanger special importance was attached to the objective to achieve a reliable continuous operation, combined with a constant cooling of gases, even in case of high particle loads in the gas and in case of a strongly adhesive character of these particles. Occasional manual cleaning proved to be unnecessary for maintaining the heat transfer.   If necessary we are taking additional measures to ensure a trouble-free continuous operation of the flat-tube heat exchanger and exceptionally long service lives of cooling tubes.  
  • Utilisation of a mechanically working cooling area cleaning device in case of presence of particles with adhesive features.
  • Avoidance of temperatures below the dew point by using pre-heated cooling air (cooling air re-circulation)
  • Avoidance of temperatures below the acid dew point by means of injection of additive powders in the flue gas flow upstream heat exchanger
On request there are different possibilities of heat recovery available, e.g. in form of hot water generation.

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