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Fives Stein patents


Recent patent applications related to Fives Stein. Fives Stein is listed as an Agent/Assignee. Note: Fives Stein may have other listings under different names/spellings. We're not affiliated with Fives Stein, we're just tracking patents.

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Device and method for determining the loss on ignition of at least part of an iron and steel product

Disclosed is a method and device for determining the loss on ignition of at least part of an iron and steel product during passage through a furnace upstream of a descaler. The device includes electromagnetic sensors, with at least one arranged to scan the product's lower surface near the furnace outlet, the sensor oriented so the scanning plane of the electromagnetic radiation from the sensor is perpendicular to a direction of movement; a set of at least two electromagnetic sensors upstream of the descaler, oriented so their scanning planes are substantially on a single plane perpendicular to the direction of movement of the at least part of the product; and at least two electromagnetic sensors downstream of the descaler, oriented so their scanning planes are substantially on a single plane perpendicular to the product's movement direction. ... Fives Stein

Burner for a reheating furnace or heat treatment furnace for steel industry

Burner for an oven for reheating siderurlogical products such as billets, blooms or slabs, or for heat treatment oven, which is equipped with a fuel injection device and with an oxidant feed body feeding feed orifices with oxidant, the burner having an axial direction; the injection device is designed to provide a central injection of fuel via an orifice in, or parallel to, the axial direction of the burner; the oxidant feed body includes two sets of four oxidant feed orifices, each set including two orifices situated above a horizontal plane passing through the axial direction of the burner, and two orifices situated below this plane, the orifices of a second set being further away from the horizontal plane than those of the first set, the geometric axes of the orifices of the two sets making angles of inclination with respect to the axial direction of the burner.. . ... Fives Stein

Method and burner for reducing nitrogen oxide emissions during the combustion of a gaseous fuel

A method for reducing nitrogen oxide nox emissions during combustion of a gaseous fuel in a burner intended for a naked-flame or controlled-atmosphere reheating furnace, for reheating steel products or for continuous coating and/or annealing of metal strips, wherein a first dilution is carried out by mixing combustion air with combustion products upstream from or in the body of the burner, and a second dilution is carried out directly at the level at which the gaseous fuel reacts with the combustion air, mixing the fuel with a recirculated portion of the flame or products of partial combustion, the double dilution enabling the physical and chemical properties of the gas to be modified in order for the burner to operate with low oxygen rates and obtain a flame that produces a very low level of nox production regardless of the temperature of the enclosure in which the combustion takes place.. . ... Fives Stein








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