Abstract:
Process and apparatus for melting raw material in an electric arc furnace using a flame of variable direction, the apparatus comprising a burner and a lance whereby the lance outlet (31) opening and the burner outlet opening (21) are not concentric and are located at a distance from one another, and whereby the lance axis (32) forms an angle with the burner axis (22) in the range from 10° to 40.
Abstract:
The invention relates to a method for heating a charge using a flame generated by a lance and/or a burner, characterized in that, in a first phase, the flame is directed towards the charge and in that, in a second phase, the flame is directed more or less parallel to the charge.
Abstract:
The invention relates to a method for melting a load in a furnace, the furnace including in the upstream portion of its melting area one or more side oxy-burners with a directable flame.
Abstract:
Procédé pour la fusion d'une charge dans un four, le four étant équipé dans la partie amont de sa zone de fusion d'un ou plusieurs oxybrûleurs latéraux à flamme orientable.
Abstract:
In one embodiment, a method for generating heat energy includes injecting a stream having a concentration of at least 50% oxygen (O 2 stream) into a primary gas stream through a mixer, the mixer discharging the O 2 stream as two or more spaced jets traversing the primary stream, thereby enriching the primary gas stream. The method further includes mixing fuel with the enriched primary gas stream, thereby forming a fuel stream; and combusting the fuel stream, thereby forming a flue gas stream.
Abstract:
A process for making pig iron in a blast furnace, wherein supersonic oxygen containing gas is injected at the bottom of the furnace and reaches the dead man zone at a velocity which is high enough to substantially avoid the deposition of coal fines in said zone while at the same time the PCI rate may be increased.
Abstract:
L'invention concerne un procédé de chauffage d'une charge à l'aide d'une flamme engendrée par une lance et/ou un brûleur, caractérisé en ce que dans une première phase, on dirige la flamme en direction de la charge et en ce que dans une deuxième phase, on dirige la flamme sensiblement parallèlement à la charge.
Abstract:
L'invention concerne un brûleur radiant pour la combustion d'un gaz oxygéné et d'un combustible, comportant : un espace de distribution et de combustion du gaz oxygéné et du combustible, - des moyens d'injection du gaz oxygéné et du combustible dans l'espace de distribution et de combustion, l'un des moyens d'injection créant un écoulement principal du gaz oxygéné ou du combustible dans l'espace de distribution et de combustion, - un milieu poreux en céramique réfractaire au moins partiellement au contact de l'espace de distribution et de combustion, - une paroi émettrice étanche aux gaz en céramique réfractaire entourant le milieu poreux, et dans lequel le nombre de moyens d'injection autres que celui créant un écoulement principal dans l'espace de distribution et de combustion est optimisé.
Abstract:
In one embodiment, a method for generating heat energy includes injecting a stream having a concentration of at least 50% oxygen (O2 stream) into a primary gas stream through a mixer, the mixer discharging the O2 stream as two or more spaced jets traversing the primary stream, thereby enriching the primary gas stream. The method further includes mixing fuel with the enriched primary gas stream, thereby forming a fuel stream; and combusting the fuel stream, thereby forming a flue gas stream.
Abstract:
Appareil et procédé pour l'injection d'un jet multiphasique à direction et/ou l'ouverture variables par interaction fluidique entre le jet multiphasique et un ou plusieurs jets actionneurs.