Class / Patent application number | Description | Number of patent applications / Date published |
065135900 | By charging batch material | 10 |
20100147031 | Method and a device for the refining of glass - A device for the refining of a glass melt at high temperatures according to the skull pot principle is provided. The device includes a skull crucible having walls that are constructed from a plurality of pipes, a high-frequency coil for coupling electrical energy into the contents of the skull crucible, and an inlet and an outlet of the skull crucible being arranged in a melt surface region of the glass melt, wherein the inlet and the outlet are essentially arranged lying opposite one another. | 06-17-2010 |
20100199722 | DILUTE COMBUSTION - The invention relates to a method of combustion in a furnace provided with a burner comprising an inlet for oxidizer comprising between 10% and 30% of oxygen and an inlet for fuel terminating in the furnace outside the oxidizer inlet and at a distance therefrom of between 0.3 and 4 times the equivalent diameter of the oxidizer inlet, said oxidizer entering the furnace at a speed of between 10 and 60 m/s. This method permits a significant reduction in nitrogen oxide emissions and is suitable for glass furnaces in particular. | 08-12-2010 |
20100293999 | METHOD FOR MELTING GLASS - The present invention is related to a method for the combustion of pulverized fuel as a heating source for melting raw materials for producing glass. The method including the steps of, feeding a regulated controlled flow of a mixture of pulverized fuel and air or gas under pressure for pneumatic transport in at least one distribution means; discharging the mixture of pulverized fuel and air or gas from feeding means toward at least one of said distribution means; regulating in a controlled manner the pulverized fuel-air or gas mixture from the distribution means to each of a plurality of burners in a glass melting region of a glass melting furnace; burning the pulverized fuel by means of the burners in the glass melting region of said glass melting furnace while providing a combustion flame with high thermal efficiency to carry out a controlled heating for melting the glass; and, counteracting erosive and abrasive effects of the pulverized fuel in the glass melting furnace by means of refractory materials. The refractory materials being selected of silica-alumina-zircon, magnesite, chrome-magnesite, magnesia-alumina spinel, alumina-silicate, zircon-silicate, magnesium oxide silica or alumina mixtures of the same. | 11-25-2010 |
20100300153 | Downward Firing Oxygen-Fuel Burners for Glass Melting Furnaces - This invention relates to a glass melting furnace with downward firing oxygen-fuel burners placed in the breast walls of the combustion space and adjacent to the skew block. The downward firing oxygen-fuel burner may be placed at an angle so that the oxygen-fuel flame from the downward firing oxygen-fuel burner impinges on the upper surface of the glass bath. The placement and angle of the downward firing oxygen-fuel burner may maximize the amount of heat transferred to the batch cover or the molten glass, ensure the formation of high quality glass products, and protect the integrity of the downward firing oxygen-fuel burners and the glass melting furnace. | 12-02-2010 |
20110000261 | Low Maintenance Burner for Glass Forehearth - A burner recessed from a combustion space in a burner block adjacent the combustion space injects a secondary reactant (a second portion of a first reactant) around and upstream of a stream of a primary reactant (a first portion of the first reactant) and a stream of a second reactant in order to prevent or inhibit deposition of material from recirculating gases in the combustion space upon the burner. The first reactant is one of a fuel and an oxidant while the second reactant is the other of a fuel and an oxidant. The secondary stream may be injected from a continuous annulus formed in an outer body of the burner or from a plurality of radially spaced holes formed in the outer body. The primary stream is injected from one of an inner bore formed in an inner body of the burner and a reactant annulus defined between the inner and outer bodies while the second reactant is injected from the other of the inner bore and the reactant annulus. | 01-06-2011 |
20130192309 | SELECTIVE GLASS BATCHING METHODS FOR IMPROVING MELTING EFFICIENCY AND REDUCING GROSS SEGREGATION OF GLASS BATCH COMPONENTS - A method of increasing efficiency in glass batch melting by controlling the reaction paths of batch constituents as they melt, preventing early formation, flow, segregation and pooling of low-viscosity liquids. The glass batch raw material components are separated into first and second portions with different respective compositions, resulting in first and second respective compositions having first and second respective reaction paths. The respective portions are combined with remaining raw materials to define a mixture which is then introduced into the melter and reacted to yield a homogeneous glass melt. The first composition has a first melting temperature having a first reaction path resulting in a first liquid having sufficient viscosity to minimize flowing. The second composition has a second melting temperature and the first liquid fluxes the second composition to yield a molten glass composition. | 08-01-2013 |
20140007622 | PROCESSES FOR PRODUCING MOLTEN GLASSES FROM GLASS BATCHES USING TURBULENT SUBMERGED COMBUSTION MELTING, AND SYSTEMS FOR CARRYING OUT SUCH PROCESSES - Processes and systems for producing molten glass using submerged combustion melters, including densifying an initial composition comprising vitrifiable particulate solids and interstitial gas to form a densified composition comprising the solids by removing a portion of the interstitial gas from the composition. The initial composition is passed from an initial environment having a first pressure through a second environment having a second pressure higher than the first pressure to form a composition being densified. Any fugitive particulate solids escaping from the composition being densified are captured and recombined with the composition being densified to form the densified composition. The densified composition is fed into a feed inlet of a turbulent melting zone of a melter vessel and converted into turbulent molten material using at least one submerged combustion burner in the turbulent melting zone. | 01-09-2014 |
065136300 | Burner directed towards batch or melt | 3 |
20100313604 | Furnace and Process for Controlling the Oxidative State of Molten Materials - A method useful with oxy-fuel combustion and in a furnace which contains molten material, wherein either substoichiometric or superstoichiometric combustion and low velocity injection of fuel and primary and secondary oxidant in an oxy-fuel burner are carried out in an orientation which forms either a reducing or oxidizing atmosphere proximate the molten surface. | 12-16-2010 |
20120125052 | LOW-CARBON-TYPE IN-FLIGHT MELTING FURNACE UTILIZING COMBINATION OF PLASMA HEATING AND GAS COMBUSTION, MELTING METHOD UTILIZING THE SAME AND MELTING SYSTEM UTILIZING THE SAME - A low-carbon-type in-flight melting furnace for melting granular raw material for glass production in in-flight state using plasma heating and gas combustion, a melting method using the same and a melting system utilizing the same are provided. The low-carbon-type in-flight melting furnace includes a melting furnace body unit; a melting tank in the melting furnace body unit; a melting unit provided above the melting tank and serving to melt raw material; a raw material feeding unit provided outside the melting unit; a plasma/gas melting device provided around the melting unit and serving to spray high-temperature flames produced by plasma and gas; an exhaust tube provided at one side of the melting tank and serving to discharge exhaust gas; and a tap hole for tapping the melt, formed in the melting unit, through the melting tank, in the form of a slag. | 05-24-2012 |
20120159994 | GLASS MELTING FURNACE, PROCESS FOR PRODUCING MOLTEN GLASS, APPARATUS FOR PRODUCING GLASS PRODUCT, AND PROCESS FOR PRODUCING GLASS PRODUCT - An apparatus for producing molten glass, a process for producing molten glass, an apparatus for producing a glass product and a process for producing a glass product, which are capable of preventing deterioration of the quality of molten glass caused by deposition of scattered particles on a furnace wall or a flue. In the present invention, together with the operation of introducing and melting glass material particles by an oxygen combustion burner, glass cullet pieces are dropped from glass cullet pieces-introducing tubes to form a substantially cylindrical enclosure around a flame by a flow of glass cullet pieces. That is, glass cullet pieces are dropped from eight glass cullet pieces-introducing tubes to partition off the furnace wall from the flame. And, particles scattering from the flame are captured as deposits on the surface of falling glass cullet pieces and dropped into a glass melt in the melt reservoir. | 06-28-2012 |