Waste preparation & feeding systems
Waste preparation & feeding systems Selection and design of feeding system plays crucial role in overall performance of Incineration systems. Some of the distillation residue takes solid form at ambient temperature, but can be liquefied at elevated temperature and atomized. Effwa offers complete system comprising of container with steam heating and heating and pumping Unit (HPU). Solid wastes/ semi-solids are loosely contained in waste PE/ cotton bags or cartons for manual or mechanized feeding. Vent gases from reactors depending upon Lower Explosive Limit (LEL) and Upper Explosive Limit (UEL) are evacuated and fed to combustion chambers through steam eductor or root blowers.
The type of primary combustion chamber (PCC) of Incineration system is defined based on its hearth and orientation which depends upon quantity, characteristics and form of wastes. Some of the common type that Effwa offers include; static hearth, trolley (mono / twin and Rotary). The Secondary or Post Combustion Chambers (SCC) are static and preferably horizontal, unless due to layout constrains when vertical chambers are offered.
Flue Gas Cleaning
While optimal selection of Time, Temperature and Turbulence ( 3 Ts ) governs high combustion efficiency of incineration systems, the flue gases still require cleaning by Venturi scrubber followed by Packed Bed Scrubber. The pyrolytic combustion in PCC followed by post combustion of volatiles in SCC is the best option for reducing the efforts on flue gases cleaning.