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7120185 |
Method and apparatus for waste vitrification
A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic vessel (14) functioning as a vessel electrode (62). A stream (12) of...
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7108808 |
Method for waste vitrification
A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic vessel (14) functioning as a vessel electrode (62). A stream (12) of...
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6983006 |
All-electric glass-melting deep furnace and method of refining and supplying glass
An all-electric glass-melting deep furnace and a method of refining and supplying glass are disclosed in which high-quality molten glass is efficiently produced in large quantity at high heat...
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6751989 |
Device and method for melting or refining glass or glass ceramics
The invention relates to a device for melting or refining glass or glass ceramics. According to the invention, a device of this type is provided with the following characteristics: a plurality of...
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6470040 |
Energy supply device of a melting tank
The invention relates to an energy supply device of a melting tank. According to the invention, between an electrode plane of the melting tank and a converter for the current supply of the...
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6144688 |
Heat furnace having complimentary electric heating
A furnace having a combustion chamber, a fuel inlet for the combustion chamber, an electric heater operatively coupled with the combustion chamber, an electric generator coupled to the electric...
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5426663 |
Glass melting
A glass melting tank provides heat in a melting chamber 11 from pairs of electrodes 26, 27 and 28. A three-phase electrical power supply 34 provides power to the electrode pairs and the voltage...
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5131005 |
Melting apparatus having double wall structure
A melting apparatus in which a material to be melted is accommodated in a crucible made of platinum or its alloy, and electric current passes through the crucible to generate heat ot melt the...
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5062118 |
Electric melting furnace for vitrifying waste
An electric melting furnace for vitrifying waste, having a melting tank having walls of refractory bricks, the melting tank being provided at the upper portion thereof with a supply port for a...
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4819248 |
Electrode monitoring system
An apparatus and method for making electrical resistance measurements of individual powered electrodes within a glass heating furnace is disclosed. The powered electrodes are energized in pairs...
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4737966 |
Electric melter for high electrical resistivity glass materials
An electric melting furnace is described for melting high electrical resistivity glass, such as E-glass, within a melting chamber surrounded by a relatively low electrically resistivity refractory,...
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4638491 |
Method for protecting the heating electrodes of glass melting furnaces
Disclosed is a method for protecting the heating electrodes of glass melting furnaces by applying a DC potential to various electrodes of the furnace. The DC current is applied to the heating...
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4569055 |
Forehearth electrode firing
Pairs of electrodes are symmetrically placed about the bend of a forehearth of a glass melting furnace. The electrodes are connected to the dual secondary windings of a step down transformer such...
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4531218 |
Glass melting furnace
A glass melting furnace which uses Joule effect heating between electrodes, has a parallel attachment of electrodes to a single power source. The electrodes are arranged in rows of four electrodes...
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4455659 |
Coaxial bus and bus system
A coaxial bus and bus system for electric furnaces which significantly reduces and minimizes heating and losses due to magnetic induction effects are characterized by a concentric tubular bus stem...
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4438518 |
Method for protecting forming bushings
A process for forming molten material in a melting furnace is disclosed. Bushings made of refractory or noble metal in the furnace are protected from cracking by applying a positive or anodic D.C....
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4435811 |
Current distribution for glass-melting furnaces
An electric glass-melting furnace is disclosed having a first embodiment comprising: a chamber adapted for holding a body of molten glass, such for withdrawing molten glass therefrom, an arc...
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4433420 |
Method and apparatus for determining the level of slag containing iron or iron compounds in a glass melting furnace
A method and apparatus for determining the level of slag containing iron or iron compounds in the bottom of a glass melting furnace is disclosed. Electrically conductive electrodes or probes are...
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4421538 |
Device for the manufacture of glass filaments
A forehearth supplied with molten glass from a tank furnace, with bottom passages overlying bushings for the extrusion of vitreous filaments, forms an elongate chamber whose sidewalls are...
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4324942 |
Electric glass melting furnace
An electric furnace for heating glass by the Joule effect comprising: a chamber adapted for holding a body of molten glass; a plurality of electrodes positioned in the chamber such that the...
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4309567 |
Furnace forehearth electrode groups having less than 90° phase difference between adjacent groups
A forehearth in a melting furnace is arranged with groups of electrodes and with each group having at least a pair of opposed electrodes. The opposed electrodes are connected to a multiphase power...
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4247733 |
Electrically heated glass forehearth
The forehearth provides a channel for the flow of molten glass from a tank type furnace to a feeder bowl or the like in order to feed gobs of glass to one of several glassware forming machines...
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4161617 |
Method and apparatus for electrically melting glass
A method and apparatus is described for melting of a glass batch with electrical energy supplied by electrodes disposed in a vertically oriented melting chamber and which ameliorates the problems...
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4069032 |
Forehearth for glass furnace
A forehearth for a glass furnace includes a roof having a plurality of longitudinal ridges depending therefrom. These define a central longitudinal channel lengthwise of which a current of cooling...
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3984612 |
Method and apparatus for protection of metal heating electrodes of melting furnaces by DC current
Metal heating electrodes of melting furnaces are protected against reduction of ions from a silicate melt by superposition of DC current on the AC heating current and by forming and maintaining on...
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3730695 |
LEVEL CONTROL MEANS FOR GLASS FIBER MAKING PROCESS
The invention is illustrated in a preferred embodiment for producing glass fibers in which the maintenance of a preselected head of a molten body of glass is critical in the control of fiber...
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3530222 |
ELECTRODE CONNECTOR FOR ELECTRIC FURNACE
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3440321 |
FURNACES FOR HEATING GLASS ELECTRICALLY
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3012373 |
Level control means
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2857501 |
Electric glass working
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2855450 |
Method for avoiding decomposition of melting vessels
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