Abstract: Fuel composition which combusts instantaneously, comprising from 40 to 95% by weight of an instantaneously combusting fossil fuel and from 60 to 5% by weight of a non-fossil solid fuel chosen from the group comprising urban solid waste, elastomeric and non-elastomeric polymer materials and mixtures thereof, this fuel being suitably treated so as to be instantaneously combustible. Method and plant for the instantaneous combustion of the said composition.

Abstract: Fuel composition which combusts instantaneously, comprising from 40 to 95% by weight of an instantaneously combusting fossil fuel and from 60 to 5% by weight of a non-fossil solid fuel chosen from the group comprising urban solid waste, elastomeric and non-elastomeric polymer materials and mixtures thereof, this fuel being suitably treated so as to be instantaneously combustible. Method and plant f or the instantaneous combustion of the said composition.

Abstract: Fuel composition which combusts instantaneously, comprising from 40 to 95% by weight of an instantaneously combusting fossil fuel and from 60 to 5% by weight of a non-fossil solid fuel chosen from the group comprising urban solid waste, elastomeric and non-elastomeric polymer materials and, mixtures thereof, this fuel being suitably treated so as to be instantaneously combustible. Method and plant for the instantaneous combustion of the said composition.

Abstract: Fuel composition which combusts instantaneously, comprising from 40 to 95% by weight of an instantaneously combusting fossil fuel and from 60 to 5% by weight of a non-fossil solid fuel chosen from the group comprising urban solid waste, elastomeric and non-elastomeric polymer materials and, mixtures thereof, this fuel being suitably treated so as to be instantaneously combustible. Method and plant for the instantaneous combustion of the said composition.

Abstract: Fuel composition which combusts instantaneously, comprising from 40 to 95% by weight of an instantaneously combusting fossil fuel and from 60 to 5% by weight of a non-fossil solid fuel chosen from the group comprising urban solid waste, elastomeric and non-elastomeric polymer materials and mixtures thereof, this fuel being suitably treated so as to be instantaneously combustible. Method and plant for the instantaneous combustion of the said composition.

Abstract: Fuel composition which combusts instantaneously, comprising from 40 to 95% by weight of an instantaneously combusting fossil fuel and from 60 to 5% by weight of a non-fossil solid fuel chosen from the group comprising urban solid waste, elastomeric and non-elastomeric polymer materials and mixtures thereof, this fuel being suitably treated so as to be instantaneously combustible. Method and plant for the instantaneous combustion of the said composition.

Abstract: A nozzle for the injection of solid fuel in dust form into a combustion chamber, to be installed in correspondence with the outlet of a burner coaxially to the longitudinal axis of the burner, comprising a stationary annular part divided into coal ducts of a circumferential width that decreases towards outlet section to form coal-dust-rich air streams, a central duct for a coal-dust-poor air stream sideways delimited by the coal ducts and having an outlet end, a central member that is axially mobile within the central duct, for varying the cross section of a central passage delimited by the stationary annular part at the outlet end. Air ducts for the coal-dust-poor air stream are formed between each pair of adjacent coal ducts in the stationary annular part communicating with the central duct and having a circumferential width increasing toward the outlet end.

Abstract: A low NOx burner comprising ducts for the primary (6), secondary (7) and tertiary air (14), arranged coaxially around its longitudinal axis, for supplying of the primary, secondary and tertiary air, respectively, to a combustion chamber (3), means for accumulation of the air (5), means to give vorticity to the primary, secondary and tertiary air (11, 15, 27) installed in the respective ducts, means for supply of fuel (23, 32, 43) arranged within said ducts to inject the fuel into said combustion chamber. The axial swirler for the secondary air (11) is formed by a plurality of blades each of which is made up of a stationary part (11a) and a mobile part (11b) connected to actuator means capable of moving it in an angular direction to give an air outlet angle of between 30.degree. and 60.degree.. The axial swirler for the tertiary air is conical in shape and has fixed blades. On the tertiary air duct a passage (16) is formed for supply of secondary and tertiary air.

Abstract: A chain mold comprises a supporting construction which is constituted by two shoulders supporting an upper shaft and axle and a bottom shaft and axle, all having horizontal parallel rotary axes, and on each of which is mounted a gear wheel, on the upper gear wheels being entrained an upper chain, whereas on the bottom gear wheels is entrained a bottom chain. The two chains have chain links which are mutually faced along a vertical intermediate plane and sequentially define dihedrical shape articles. The articles arranged on the bottom chain are provided with a cutting edge for cutting the food product bead. Each link of the upper chain slidably supports, along the dihedral shape articles, a pair of controllably movable half-molds, which can be mutually moved toward or away from a corresponding pair of half-molds supported by the opposite link in order to form a piece of food product from a food product bead supplied along the intermediate plane.