Abstract: The invention relates to a burner comprising several substantially concentric channels, one (1) of which is arranged outside of all fuel supply conduits and is delimited by two pipes (2,3), whose axes (4) are placed in a parallel position and which are movable with respect to each other. According to said invention, diverting members (6) used for imparting a tangential component (7) to a fluid flowing in the channel (1) are carried by the first pipe (2) and are fixed thereto, the second pipe (3) comprises a drive portion (9) for driving the fluid outside the diverting members (6) and the angle of tangential deviation of the fluid at the downstream end (8) of the channel (1) depends on the axial position of the second pipe (3) with respect to the first pipe (2).

Abstract: The invention relates to a burner comprising several substantially concentric channels, one (1) of which is arranged outside of all fuel supply conduits and is delimited by two pipes (2,3), whose axes (4) are placed in a parallel position and which are movable with respect to each other. According to said invention, diverting members (6) used for imparting a tangential component (7) to a fluid flowing in the channel (1) are carried by the first pipe (2) and are fixed thereto, the second pipe (3) comprises a drive portion (9) for driving the fluid outside the diverting members (6) and the angle of tangential deviation of the fluid at the downstream end (8) of the channel (1) depends on the axial position of the second pipe (3) with respect to the first pipe (2).

Abstract: The invention relates to liquid fuel burners having low NOx and dust emission, and it also relates to liquid atomizers or sprayers for such burners. The removable atomizer for a liquid fuel burner head is made as a single piece, has a longitudinal central orifice for passing fuel plus a plurality of longitudinal peripheral orifices for passing a spray fluid, and on each of its faces it further includes a depression surrounding said central orifice.

Abstract: In a method of supplying air to a pulverized solid fuel burner passing through the burner cowl of a furnace, the fuel is dried and then conveyed by means of a given large quantity of hot air, which may or may not be depleted in oxygen in a separator in which the fuel is extracted from it. The fuel is then conveyed to the burner by means of a first portion only of the air from which the fuel has been removed. This conveyor air portion is used as primary combustion-supporting air for burning the fuel in the burner, into which the first portion of air, mixed with the fuel it conveys, is fed via an annular duct. The other portion of the hot air purified in the separator is used at least as additional primary combustion-supporting and flame adjustment air and is fed into the burner peripherally and centrally relative to the first portion of air charged with fuel.

Abstract: A device for mounting burners inside a duct for gas and comprising at least one fuel injection pipe having a nose disposed in the head of said burner on an axis parallel to the axis of the duct. The injection pipe is situated inside a sheath secured to the burner head for feeding it with air from outside the duct and disposed transversely relative to the axis of the duct, and the nose of the injection pipe, situated at the end of a bent portion of the pipe, is movable along the axis relative to a guide orifice secured to the burner head, from which it is suitable for being disengaged by the injection pipe being moved inside the sheath from outside the duct, thereby making it possible, from outside the duct, to extract the injection pipe completely to the outside of the duct.

Abstract: A parallel flow liquid fuel burner is disclosed which has a device for injecting fuel in a central flame stabilizer; the stabilizer comprises a blade-containing rose situated around a central hub itself situated around the injection device and the injection device comprises several fuel injection orifices adapted to provide separate elementary flames.

Abstract: The invention relates to a gas generator with fixed bed and reverse draught, to gasify solid combustible materials.The gas generator according to the invention comprises starting from the top downwards, a loading compartment, a drying and pyrolysis enclosure, a combustion chamber, a rotary hearth plate and an ash tray. The wall of the combustion chamber is lined with a coil inside which flows part of the combustion air which is injected obliquely on the top periphery of the chamber. The center of the combustion chamber is occupied by a core which is driven in rotation by the hearth plate and which is covered by a deflector. Another part of the combustion air is injected through the core at the top of the combustion chamber.The invention finds an application in the gasification of all types of combustible solid material, which may or may not be associated to their carbonization.