摘要:
Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) into which hazardous waste is introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. Failure of the melting vessel (12) is detected by a sensor (48). A stirrer (39) mixes the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases and any melted material received from the failed melting vessel (12). The sensing of the failure is by a pressure change in the hermetically sealed chamber (58) or sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) by electrical circuit type detection.
摘要:
A process for melting material to be treated includes placing material to be treated in a container that may include an insulating lining, heating the material to be treated and melting the material to be treated, preferably allowing the melted material to cool to form a vitrified and/or crystalline mass, and disposing of the mass. The mass is either disposed while contained in container or removed from container after cooling and disposed. Insulating lining may comprise one or more layers of a thermal insulating material, one or more layers of refractory material, or a combination thereof. The material to be treated may be heated by placing at least two electrodes in the material to be treated and passing a current between the electrodes, or alternatively, by placing at least one heating element in the material to be treated and passing heat into the material to be treated.
摘要:
Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. A voltage is applied across spaced electrodes (72) of the melting vessel (46) to heat material within the melting vessel. A stirrer (39) can be utilized to mix the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) such as by electrical circuit type detection.
摘要:
A process for producing fluoride glass, including the steps of: introducing a raw material for fluoride glass into a heating vessel; and heating the raw material in the heating vessel, while causing the heating vessel to have a negative internal pressure and introducing an inert gas into the heating vessel, thereby to melt the raw material under heating.
摘要:
Elektrisch betreibener diskontinuierlicher Glasschmetzofen mit wenigstens einem durch eine Anordnung von stromgespeisten Elektroden beheizten, feuerfest ausgekleideten Bassin und einem darüber angeordneten, elektrische Heizelmente aufweisenden Oberofen, bei dem die Elektroden (5) Tauchelektroden sind und mit ihren aus dem Ofen (1) herausgeführten metallischen Zuleitungen (2) um eine etwa in Höhe des Bassins (3) außerhalb des Ofens (1) liegende Drehachse (4) in einer etwa vertikalen Ebene von einer Arbeitsstellung im Ofen (1) in eine Lage außerhalb des Ofens (1) verschwenkbar angelenkt sind.
摘要:
A substantially spherically-shaped electric melting furnace includes a carbon-lined crucible. The interior of said crucible is sealed from the atmosphere outside the crucible and a vacuum pump and venturi device control the atmosphere within the crucible by removing oxygen therefrom. A feeder lock allows material to be fed into the crucible without interfering with the atmospheric control of the crucible and a tap hole adjacent the lower portion of the crucible allows molten material to be removed. When used in the manufacture of mineral wool insulation, slag is fed into the crucible to be melted and the molten slag from the tap hole is delivered to a fiberizing device.
摘要:
Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. A voltage is applied across spaced electrodes (72) of the melting vessel (46) to heat material within the melting vessel. A stirrer (39) can be utilized to mix the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) such as by electrical circuit type detection.
摘要:
The present invention relates to a system for melting and processing glass for artistic use, and the associated method of use, which comprises a discontinuous-operation electric furnace having at least one charging mouth in its upper part and a discharge hole in its bottom part, a charging machine, suitable for introducing in succession, via said charging mouth, charges of material for melting, and a device for obtaining cullet, arranged in the vicinity of said discharge hole. The furnace has two heating elements, i.e. of the electrical resistance type and electrode type, respectively, which are immersed in the vitreous mass.
摘要:
Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. A voltage is applied across spaced electrodes (72) of the melting vessel (46) to heat material within the melting vessel. A stirrer (39) can be utilized to mix the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) such as by electrical circuit type detection.