Apparatus for making solid waste material environmentally safe u
Apparatus for separating solids from flue gases in a circulating
Apparatus for the cleaning of flue gases containing sulfur...
Apparatus for the combustion of carbonaceous material
Apparatus for the combustion of carbonaceous material
Apparatus for the disposal of flue gas from gas or liquid-fuel b
Apparatus for treating combustion exhaust gas
Apparatus including a two stage vortex chamber for burning waste
Arrangement in apparatus for the combustion of waste gases
Ashing furnace and method
Atmospheric gas heating unit with external recycling of exhaust