Abstract: The invention relates to a thermal lance consumable by an exothermic reaction used to perforate and/or cut any type of material of different thicknesses and dimensions, the lance comprising a main outer tubular body and at least one hollow inner profile and/or at least one hollow inner profile that is made of aluminium and/or magnesium and/or another material and has a different cross section, the profiles being located concentrically with respect to each other and/or with respect to the main outer tubular body, cavities being formed between each hollow inner profile and/or the main outer tubular body, the cavities forming passages for oxidizing gas that flows through the length of the thermal lance, wherein the cavities must have at least one straight part and at least one curved part to allow the flow of oxidizing gas to pass through the lance with a suitable turbulence during the operation thereof.

Abstract: The invention relates to a thermal lance (1) having adequate flexibility and concentrated effective heating capacity for the fusion cutting and/or piercing of any type of material, for example, for piercing and opening tapping passages in melting furnaces that use plugs made of clay or mixtures of, inter alia, alumina, silica and carbon. The thermal lance comprises at least four tubular profiles, one disposed externally and three disposed internally, and more than seventeen cavities housed inside said lance, wherein at least two of said four tubular profiles have different cross-sections, wherein each tubular profile is disposed in a contiguous manner in relation to the other tubular profiles, and wherein each tubular profile is selected from tubular profiles having a circular, square, triangular, hexagonal, oval, or multi-point star-shaped cross-section. The invention also relates to the use of the thermal lance for the fusion cutting and/or piercing of any type of material.

Abstract: The invention relates to a thermal lance (1) having adequate flexibility and concentrated effective heating capacity for the fusion cutting and/or piercing of any type of material, for example, for piercing and opening tapping passages in melting furnaces that use plugs made of clay or mixtures of, inter alia, alumina, silica and carbon. The thermal lance comprises at least four tubular profiles, one disposed externally and three disposed internally, and more than seventeen cavities housed inside said lance, wherein at least two of said four tubular profiles have different cross-sections, wherein each tubular profile is disposed in a contiguous manner in relation to the other tubular profiles, and wherein each tubular profile is selected from tubular profiles having a circular, square, triangular, hexagonal, oval, or multi-point star-shaped cross-section. The invention also relates to the use of the thermal lance for the fusion cutting and/or piercing of any type of material.

Abstract: The invention relates to a quick-coupling device (1) that does not require external elements for coupling, intended for the coupling of thermal lances used for the fusion cutting and/or piercing of any type of material, for example, for piercing and opening tapping passages in melting furnaces that use plugs made of clay or mixtures of, inter alia, alumina, silica and carbon. The device comprises a hollow cylinder having beveled ends and two circular internal grooves in each end of the device. The invention also relates to the use of the coupling device for coupling with thermal lances comprising at least one inverted conical end and having an annular external groove in the casing thereof.