Abstract: Gases that are to be scrubbed, particularly flue gases, pass through an inlet line (14) into a processing area (9) wherein the gases are exposed to the effects of a scrubbing agent that is contained in a bath (4). To this end, the liquid is sprayed by means of a rotating disc arrangement (17), the discs of which are coated--preferably through a hollow shaft (18)--with a layer of the scrubbing agent, this coating then being separated from the rotating discs as a result of centrifugal forces, with the attendant formation of an annular spray zone. The gas scrubber can trap sulfur dioxide that is contained in the flue gases. To this end, water is used as the scrubbing agent, and sodium carbonate (soda) is added to this.

Abstract: An oil stove for burning both waste oil and heating oil has a primary combustion chamber for the initial combustion of fuel and an adjoining secondary combustion chamber of larger diameter in which combustion is completed. The two chambers are located in a housing and a fan is arranged at the bottom of the housing for delivering air to the inside of the housing. The air is warmed by its passage between the walls of the housing and the primary and secondary combustion chambers and is discharged for heating purposes via louvres at the top of the housing.The primary combustion chamber is defined by a pot having air inlet openings in its sidewall, a substantially closed base, a burner ring located towards the upper end of the pot and a closed jacket surrounding the pot spaced from said sidewall. In operation a pool of fuel is formed at the base of the pot and a part of the fan delivery is ducted to the space between the closed jacket and the pot for supplying air for the combustion process.

Abstract: Combustion apparatus for burning waste oils of various viscosities with high combustion efficiency and which can meet strict polution regulations comprises primary and secondary combustion chambers with the secondary combustion chamber located above the primary combustion chamber and the primary combustion chamber located within an outer housing so as to define between the outer housing and the primary combustion chamber a plenum space. An air blower delivers air to the plenum space which feeds air into the primary combustion chamber through air inlet openings in its side wall. The primary combustion chamber has a burner bowl provided at its base and a burner ring disposed above the burner bowl. Oil is supplied at a constant rate to the burner bowl via a positive displacement pump. The burner ring features a central aperture and two concentrically disposed rings of orifices with the orifices of the outer ring being of larger diameter than the orifices of the inner ring.

Abstract: An oil stove for burning both waste oil and heating oil has a primary combustion chamber for the initial combustion of fuel and an adjoining secondary combustion chamber of larger diameter in which combustion is completed. The two chambers are located in a housing and a fan is arranged at the bottom of the housing for delivering air to the inside of the housing. The air is warmed by its passage between the walls of the housing and the primary and secondary combustion chambers and is discharged for heating purposes via louvres at the top of the housing.The primary combustion chamber is defined by a pot having air inlet openings in its sidewall, a substantially closed base, a burner ring located towards the upper end of the pot and a closed jacket surrounding the pot spaced from said sidewall. In operation a pool of fuel is formed at the base of the pot and a part of the fan delivery is ducted to the space between the closed jacket and the pot and supplying air for the combustion process.

Abstract: A pelletizing device for use with an extruder has a die plate through which a plastic ribbon is extruded, and a milling cutter is rotatably mounted at the die plate for cutting successive pellets from the extruded ribbon as the latter exits from the die plate. Means defining a channel carrying a cooling medium is located below the milling cutter and receives the pellets cut by the milling cutter, the cooling medium cooling the pellets and carrying the pellets away.