摘要:
A glassmelting furnace is provided in which the burners are elevated above the glassmelt surface and are oriented at an angle upwards relative to the glassmelt surface.
摘要:
The efficiency and output of glass furnace operation employing thermochemical regeneration is improved by controlling operation conditions over the feeding zone to reduce the difference between the temperature at the furnace crown within, and outside of, the feeding zone.
摘要:
Employing furnace combustion gases for both thermochemical regeneration and heating of regenerators to preheat oxidant for the furnace provides synergistic efficiencies and other advantages.
摘要:
A combustion method in which heated flue gas heats a regenerator through which a mixture of fuel and flue gas is then passed to undergo endothermic reactions that produce syngas which is fed into a furnace together with a motive gas stream.
摘要:
Injecting one or opposed gaseous streams into the atmosphere over molten glassmaking materials in a glassmelting furnace, in a region of the refining zone, improves the quality of the glassmelt and lessens the risk of crown corrosion.
摘要:
The energy output of a power plant combustion chamber that combusts fuel comprising biomass as all or part of the fuel can be increased by feeding oxygen into the combustion chamber so that said fuel is in contact with gaseous oxidant whose oxygen content exceeds that of air by up to 5 vol.% above that of air.
摘要:
Fuel such as coal is combusted in a staged combustion device in a method comprising feeding into a first combustion stage of said furnace said fuel and gaseous oxidant containing more than 21 vo. % oxygen, and preferably 21.8 to 29 vol. % oxygen, at a stoichiometric ratio below that which, if the stage were operated with air as the only oxidant, would produce the same amount of Nox, and combusting said fuel with said gaseous oxidant in said combustion stage to produce combustion products and unburned fuel.
摘要:
In a furnace such as a glassmelting furnace, a portion of the combustion products formed by combustion of fuel with gaseous oxidant within the furnace are passed through a recuperative or regenerative heat exchanger system to heat a portion of the incoming gaseous oxidant, and a portion of the combustion products are passed instead through a secondary heat exchanger system, wherein the hot combustion products and oxidant which are passed through said first heat exchanger are passed at a heat capacity rate ratio of combustion products to oxidant of less than 1.3.
摘要:
A process for removing blisters (large bubbles in a glassmelt) and seeds (small bubbles in a glassmelt) from a glassmelt by feeding helium bubbles (6) having a diameter between about 0.5 centimeter and about 3 centimeters at a prescribed flow rate and location to effectively produce a substantially bubble-free article.