Abstract:
The present invention relates to the supplying power to burners for oxy-fuel combustion glass melting furnaces, including a fuel injecting means and a hot oxygen power supplying means, the dispensing of oxygen being carried out so as to develop a staged combustion, a fraction of the oxygen being concurrently injected into the fuel, said oxygen being supplied essentially without heating prior to the supplying thereof into the fuel injecting means.
Abstract:
The invention relates to a burner assembly with enhanced flexibility, comprising a plurality of fuel rods that can be mounted in and removed from a fuel rod passage and that are connected to a fuel supply device by a flexible line, wherein each flexible line can be individually opened and closed.
Abstract:
The present invention relates to the supplying power to burners for oxy-fuel combustion glass melting furnaces, including a fuel injecting means and a hot oxygen power supplying means, the dispensing of oxygen being carried out so as to develop a staged combustion, a fraction of the oxygen being concurrently injected into the fuel, said oxygen being supplied essentially without heating prior to the supplying thereof into the fuel injecting means.
Abstract:
The invention relates to a method for melting vitrifiable materials in a low-capacity oven, wherein at least part of the melting energy is supplied by two oxy-burners projecting into the melting chamber through the upstream wall and arranged on opposite sides of a vertical plane in which a longitudinal axis of the melting chamber is situated, in such a way as to create two flames, the respective injection axes thereof crossing at a distance from the upstream wall, between ⅓ and ¾ of the length L of the melting chamber.
Abstract:
The invention relates to a staged oxyfuel combustion method in which a combustion chamber is injected with a jet of fuel inside a jet of primary oxygen gas which is introduced through a hole having a diameter D and a secondary oxygen gas which is introduced through a hole having a diameter d, which is positioned at a distance l from the hole for the primary oxygen gas. According to the invention, the jet of fuel emerges at a distance r set back from the wall of the combustion chamber. The oxygen-rich oxygen gas is pre-heated to a temperature of at least 300° C. The r/D ratio is between 5 and 20 or between 0.75 and 3 and the l/d ratio is at least 2.
Abstract:
The invention concerns a heat exchanger (4) for a combustion oven, said exchanger comprising a heat exchanging zone (2) provided with means for the passage of hot fumes derived from a burner of the oven, said zone being traversed by at least one means (1a) for transporting a combustion gas to be heated from a combustion gas source, via the heat exchanging zone and to the oven burner, said means (1a) being provided with a wall (1b) designed to enable the combustion gas to be heated by thermal energy transfer, said means (1a) for transporting the combustion gas being arranged in the heat exchanging zone in means (3a) capable of containing an inert gas and provided with a wall (3b) designed to enable the inert gas to be heated by thermal energy transfer of said hot fumes.
Abstract:
The present invention relates to a heat exchanger for the supply of oxygen or of a gas mixture containing at least 50% oxygen, the temperature at the outlet of the exchanger not being below 300° C., it preferably being above 400° C., the oxygen or the oxygen-rich gas feeding one or more burners of a glass melting furnace, the heat of the combustion gases being used directly or indirectly to heat the oxygen or the oxygen-rich gas in the exchanger, in which the exchange power is between 20 and 300 kW, preferably between 40 and 250 kW and particularly preferably between 80 and 170 kW.
Abstract:
The invention relates to a method for melting vitrifiable materials in a low-capacity oven, wherein at least part of the melting energy is supplied by two oxy-burners projecting into the melting chamber through the upstream wall and arranged on opposite sides of a vertical plane in which a longitudinal axis of the melting chamber is situated, in such a way as to create two flames, the respective injection axes thereof crossing at a distance from the upstream wall, between ⅓ and ¾ of the length L of the melting chamber.