The invention relates to a submerged combustion burner (1) and to a inciter 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.

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.

A supercritical hydrothermal combustion device comprises a main enclosure and a top cap. A partition is mounted in the main enclosure and divides the interior of the main enclosure into a main combustion space and a mixing space. The top cap is provided with a primary fuel inlet, an oxidant inlet and a secondary fuel inlet. A high-temperature ignition bar sleeve, having a high-temperature ignition bar arranged therein, is disposed in the top cap. A combustion sleeve, having a stable combustion space formed therein, is mounted at a bottom of the top cap, and has a top communicated with the high-temperature ignition bar sleeve and the oxidant inlet, as well as a bottom communicated with the main combustion space. The secondary fuel inlet and a secondary oxidant inlet are communicated with the main combustion space. Supercritical hydrothermal combustion is realized to generate a hybrid thermal fluid or treat organic wastes.

A burner for a facility for melting vitrifiable materials, includes an injector block including a combustion gas distribution network and at least one injector, and a plate in glass and/or flame contact which overlaps the injector block and includes at least one injection hole in fluid communication with the injector, wherein the plate is removably attached to the injector block.

Submerged combustion methods and systems including a melter equipped with an exhaust passage through the ceiling or the sidewall having an aggregate hydraulic diameter. Submerged combustion burners configured to create turbulent conditions in substantially all of the material being melted, and produce ejected portions of melted material. An exhaust structure including a liquid-cooled exhaust structure defining a liquid-cooled exhaust chamber having a cross-sectional area greater than that of the exhaust stack but less than the melter. The exhaust passage and liquid-cooled exhaust structure configured to maintain temperature and pressure of the exhaust, and exhaust velocity through the exhaust passage and the exhaust structure, at values sufficient to prevent the ejected material portions of melted material from being propelled out of the exhaust structure as solidified material, and maintain any molten materials contacting the first interior surface molten so that it flows down the first interior surface into the melter.

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

A boiler system comprises a housing with a generally cylindrical shape extends between first and second walls to provide a generally cylindrical space. A fire tube is positioned near a bottom of the generally cylindrical housing and extends longitudinally from a first wall of the cylindrical housing to a fire tube end wall. The boiler system also includes a burner with a generally cylindrical housing which defines a generally cylindrical chamber and an end plate. The burner extends into the fire tube, and the fire tube provides a combustion chamber where combustion of an air-fuel mixture is accomplished using the burner. The end plate of the burner is adjustable so as to adjust the flame that extends from within the burner housing into the fire tube.

A submerged combustion burner, a submerged combustion melter including the submerged combustion burner, and method of operating the submerged combustion burner are disclosed. The submerged combustion burner includes central burner tube and a heat pipe that surrounds and extends beyond a terminal end of the central burner tube. When received in a burner opening defined in a melting tank of a submerged combustion melter, the heat pipe of the submerged combustion burner is disposed between the central burner tube and the floor of the melting tank. The heat pipe transfers or pumps heat via a sealed working fluid to a cooling fluid that thermally communicates with the heat pipe exterior to the melting tank.

Horizontal immersion tube boilers include a plurality of burner nozzles positioned in substantial alignment with a respective plurality of boiler tubes. Fuel-air mixture directed through the burner nozzles are ignited by a pilot flame system positioned proximate to the burner nozzles within a combustion chamber. The burner nozzles and pilot flame system receive air from a secondary air manifold having inlets that provide secondary air into the combustion chamber. The flames extending from the burner nozzles are directed into the respective boiler tubes, which exchange heat from the flame into water within a boiler shell. The secondary air inlets direct air around the burner nozzles and toward the boiler tubes, creating an air blanket around each burner nozzle for reducing turbulence and guide the flames into their respective boiler tubes. An improved flame arrestor within the nozzle prevents flame back-flow when modulating to lower firing rates.

A submerged combustion melter includes first, second, third, and fourth side walls extending upwardly from a bottom wall, a crown extending inwardly with respect to the side walls and over the bottom wall to establish a melting chamber, an exhaust port configured to exhaust gas from the melting chamber, a baffle coupled to and extending inwardly from the third side wall to divide the melting chamber into melting sub-chambers that share the exhaust port and having an end spaced away from the fourth side wall, an inlet configured for introducing a glass batch into the melter, and an outlet configured to remove molten glass from the melting sub-chambers, which direct product flow in a laterally undulating flow path from the inlet to the outlet.