Abstract: The invention relates to a material feeding system (1) for a melter comprising: (i) a substantially horizontal feeding barrel (5) designed to feed solid material through the melter wall (9) into the melt (11) contained in the said melter, and arranged below the level (13) of the melt (11) contained in the melter (30), (ii) said feeding barrel (5) comprising a material input opening (15) and material output opening (17), the material output opening (17) leading into the melt (11) contained in the melter (30), said feeding barrel (5) comprising an internal feeder (20) designed to push solid material (7) loaded through the material input opening (15), in the direction of the longitudinal barrel axis (6) toward the material output opening (17), the end of the internal feeder (20) on the material output side extending at a minimum at a distance from the internal melter surface (19) of two (2) to ten (10) times the diameter of the feeding barrel (5), preferably three (3) to eight (8) times the diameter of the feedi

Abstract: Continuous basalt fibers are produced by melting basalt rock in a submerged combustion melter, and by forming said melt into continuous basalt fibers.

Abstract: A submerged combustion melter is arranged with a melting chamber, which may be cylindrical, and at least five submerged combustion burners.

Abstract: High alumina cement is produced in a submerged combustion melter, cooled and ground.

Abstract: The invention relates to a material feeding system (1) for a melter comprising: (i) a substantially horizontal feeding barrel (5) designed to feed solid material through the melter wall (9) into the melt (11) contained in the said melter, and arranged below the level (13) of the melt (11) contained in the melter (30), (ii) said feeding barrel (5) comprising a material input opening (15) and material output opening (17), the material output opening (17) leading into the melt (11) contained in the melter (30), said feeding barrel (5) comprising an internal feeder (20) designed to push solid material (7) loaded through the material input opening (15), in the direction of the longitudinal barrel axis (6) toward the material output opening (17), the end of the internal feeder (20) on the material output side extending at a minimum at a distance from the internal melter surface (19) of two (2) to ten (10) times the diameter of the feeding barrel (5), preferably three (3) to eight (8) times the diameter of the feedi

Abstract: The present invention relates to a process for producing a boron containing glass, comprising melting raw materials including boron compounds in a submerged combustion melter (11), withdrawing flue gases from said melter and recovering heat from said flue gases in appropriate heat recovery equipment prior to release into the environment.

Abstract: The invention relates to a glass melting process comprising melting glass cullet in a submerged combustion melter comprising at least one submerged burner, under oxidizing conditions, wherein the glass cullet comprises increased levels of contaminants.

Abstract: Fly ash and/or rice husk ash is molten in a submerged combustion melter, possibly together with fluxing agent and/or further vitrifiable material, and vitrified upon cooling.

Abstract: The invention relates to a submerged combustion burner (1) and to a melter comprising submerged combustion burners (1). The burner comprises at least one oxidant feeding tube, at least one fuel feeding tube, a burner head having a peripheral envelope, the fuel and oxidant feeding tubes abutting against the burner head, at least two, preferably at least three, peripheral outward directed nozzles, each of the nozzles having a nozzle outlet, the nozzle outlets being arranged on a peripheral line on the peripheral envelope of the burner head, the nozzle outlet axis being inclined by an angle of 5 to 30° to the horizontal, and the nozzles practiced in the burner head being connected to the oxidant feeding tube and to the fuel feeding tube.

Abstract: Fly ash and/or rice husk ash is molten in a submerged combustion melter, possibly together with fluxing agent and/or further vitrifiable material, and vitrified upon cooling.

Abstract: Fly ash and/or rice husk ash is molten in a submerged combustion melter, possibly together with fluxing agent and/or further vitrifiable material, and vitrified upon cooling.

Abstract: Continuous basalt fibers are produced by melting basalt rock in a submerged combustion melter, and by forming said melt into continuous basalt fibers.

Abstract: The invention relates to a submerged combustion burner (1) and to a melter comprising submerged combustion burners (1). The burner comprises a substantially parallelepipedic body, the melt oriented face of which shows a longitudinal slot, two opposite walls of the slot comprising a series of nozzles each supplied separately with fuel and oxygen containing gas. The slot advantageously shows a narrow opening comprised between 10 and 30 mm, preferably between 15 and 25 mm, most preferably about 20 mm. The burner is advantageously made of steel plates, preferably high temperature resistant steel. The walls of the slot as well as the melt oriented face of the burner are advantageously cooled.

Abstract: The present invention relates to a process for producing a boron containing glass, comprising melting raw materials including boron compounds in a submerged combustion melter (11), withdrawing flue gases from said melter and recovering heat from said flue gases in appropriate heat recovery equipment prior to release into the environment.

Abstract: Continuous basalt fibers are produced by melting basalt rock in a submerged combustion melter, and by forming said melt into continuous basalt fibers.

Abstract: The invention relates to a submerged combustion burner (1) and to a melter comprising submerged combustion burners (1). The burner comprises at least one oxidant feeding tube, at least one fuel feeding tube, a burner head having a peripheral envelope, the fuel and oxidant feeding tubes abutting against the burner head, at least two, preferably at least three, peripheral outward directed nozzles, each of the nozzles having a nozzle outlet, the nozzle outlets being arranged on a peripheral line on the peripheral envelope of the burner head, the nozzle outlet axis being inclined by an angle of 5 to 30° to the horizontal, and the nozzles practiced in the burner head being connected to the oxidant feeding tube and to the fuel feeding tube.

Abstract: The present invention relates to a process for producing a boron containing glass, comprising melting raw materials including boron compounds in a submerged combustion melter (11), withdrawing flue gases from said melter and recovering heat from said flue gases in appropriate heat recovery equipment prior to release into the environment.

Abstract: High alumina cement is produced in a submerged combustion melter, cooled and ground.

Abstract: The present invention relates to a melter assembly (1) for melting solid raw batch material, which comprises a submerged combustion melter section (3) and an afterburner section (5), wherein the submerged combustion melter section is designed to contain the melt bath (4) at a maximum melt level (4?) and comprises at least one submerged combustion burner (21) and a melt outlet (9), and wherein the afterburner section (5) is designed as a space contiguous with, and in continuity of, the internal space defined by the submerged combustion melter section (3), and arranged over the maximum melt level (4?) of the submerged combustion melter section (3). The afterburner section (5) is dimensioned such that the gases escaping from the melt bath (4) remain for at least 2 seconds at a temperature of at least 850° C. in said afterburner section (5), prior to being evacuated to the environment. The invention also relates to a process making use of such melter assembly (1).

Abstract: High alumina cement is produced in a submerged combustion melter, cooled and ground.