FKA Fluor-Kaskadenabsorber
The Hellmich fluorine cascade absorber is the standard solution for high fluorine and low chloride and sulphur concentrations.
The absorbent material, for example limestone chippings, is located in a silo on the absorber. The absorbent material trickles vertically out of the storage silo past the horizontally aligned cascades in the reaction chamber. During the process, acidic contaminants (HCl, HF, SOx) flow through the absorbent material and react with the limestone chippings. The saturated limestone chippings are collected in the unit hopper and removed either continuously or intermittently.
A peeling drum increases the economic efficiency of the plant. The reaction product occurring can additionally be processed in a mill and further transported by pneumatic transport systems.
Application area
The fluorine cascade absorber is the standard solution for high fluorine and low chlorine and sulphur concentrations.
The functional principle
The absorption material trickles vertically out of the storage silo past the horizontally aligned cascades in the reaction chamber. In doing so, the pollutants flow through the absorption material and react with the limestone chippings. The saturated limestone chippings are collected in the unit hopper and removed either continuously or intermittently with a screw conveyor. A peeling drum increases the economic efficiency of the plant.
The reacted surface of the limestone chippings is abraded in the rotating screen drum (peeling drum).The limestone chippings, which can now be reused, are then transported
back to the storage silo via a pneumatic transport system. The reaction product which is produced can also be processed by a mill specially constructed for this application
and transported on using a pneumatic transport system. Mixing up the reaction product into tiles is possible for the heavy clay industry.
The fluorine cascade absorber can also be operated using other absorption materials.
The reacted surface of the limestone chippings is abraded in the rotating screen drum (peeling drum).The limestone chippings, which can now be reused, are then transported back to the storage silo via a pneumatic transport system.
The reaction product which is produced can also be processed by a mill specially constructed for this application and transported on using a pneumatic transport system. Mixing up the reaction product into tiles is possible for the heavy clay industry. The fluorine cascade absorber can also be operated using other absorption materials.
Advantages of the FKA - fluorine cascade absorber
- simple and space saving compact construction
- no moving parts in flue gas flow
- inexpensive absorbent material available everywhere
- up to 40% saturation of reaction medium
- dry reaction product, i.e. easy handling
- lower energy demand
- as good as maintenance-free
The technology
The absorption material trickles vertically past the horizontally arranged cascades in the reaction
chamber, and in doing so the pollutants flow through and react with the sorption material which is
then collected in the equipment hopper and removed with a screw conveyor.
