摘要:
The invention relates to a method of producing an additive for mixed cements that have good early strength. To this end, raw material is selected from the group comprising building rubble, waste glass, argil, marl, waste fireproof material, flue ash from power stations, waste pyrolysates, slags from non-ferrous industry and steel production, asbestos cement or asbestos sheets or fibers, harbor sludge, excavated material from mines, alkali-containing clinker furnace bypass dusts and/or washing sludge from gravel extraction are melted in a melting cyclone and are then subjected to granulation, thereby producing a vitreous product.
摘要:
The invention concerns a method for treating, for purposes of destruction, natural or artificial fibrous mineral materials, with toxic risks, comprising the use of mineral compositions in aqueous solution for immobilising the fibers of the substances and the purging with inert gas the resulting products by thermal treatment at about 800 to 1000 °C.
摘要:
The discharge opening (13) of the melting furnace (11) for melting wastes is inserted into the heat insulating room (10), a plurality of vessels (24) for molten slag are movably arranged in the room (10) by the use of a truck (25) or the like, and said vessels are successively transferred to a position below said discharge opening (13). Each vessel (24) for molten slag is provided with an inner mold (32) made of metal higher in corrosion resistance to molten slag than a heat insulating material (30) and spread over the inner surface of said heat insulating material (30) which is configured like the vessel.
摘要:
The invention concerns the process for converting waste materials into a silicate, said processing comprising: heating a silicate melt within a glass melting furnace so as to maintain the melt at a temperature above the decomposition temperature of waste materials; supplying waste materials to the furnace above the melt so that the waste materials fall onto the melt and the waste materials are melted into silicates; withdrawing molten silicate from the furnace in a molten glass stream at a temperature of at least 900°C; cutting the molten glass stream into a set of gobs by interrupting the molten glass stream; contacting said gobs with a cold surface to from gems having at least one flattened surface; and withdrawing molten silicate from the furnace through a melt outlet adjacent the bottom of the furnace, the melt outlet being connected to an airlift conduit in which gas bubbles are introduced to create an effective head pressure to force the melt up the airlift and out of the furnace.
摘要:
The discharge opening (13) of the melting furnace (11) for melting wastes is inserted into the heat insulating room (10), a plurality of vessels (24) for molten slag are movably arranged in the room (10) by the use of a truck (25) or the like, and said vessels are successively transferred to a position below said discharge opening (13). Each vessel (24) for molten slag is provided with an inner mold (32) made of metal higher in corrosion resistance to molten slag than a heat insulating material (30) and spread over the inner surface of said heat insulating material (30) which is configured like the vessel.
摘要:
The discharge opening (13) of the melting furnace (11) for melting wastes is inserted into the heat insulating room (10), a plurality of vessels (24) for molten slag are movably arranged in the room (10) by the use of a truck (25) or the like, and said vessels are successively transferred to a position below said discharge opening (13). Each vessel (24) for molten slag is provided with an inner mold (32) made of metal higher in corrosion resistance to molten slag than a heat insulating material (30) and spread over the inner surface of said heat insulating material (30) which is configured like the vessel.
摘要:
Die Erfindung betrifft ein Granulat aus agglomeriertem reaktiven Schüttgut und einer Bindemittelmatrix, wobei die Bindemittelmatrix ein organisches oder anorganisches Salz als Bindemittel enthält.
摘要:
In Verbindung mit einem Verfahren zur Entsorgung beziehungsweise Verwertung von Ölschlamm oder dergleichen mit Öl verunreinigtem Gut wird vorgeschlagen, das zu entsorgende Gut als Sekundärrohstoff zur Herstellung keramischer Produkte, wie zum Beispiel Ziegel, oder zur Herstellung von Schmelzgranulat zu verwenden.
摘要:
Material, such as, for example, sealed double bags of asbestos (24) containing waste or ash from infectious waste or toxic material or radioactive waste, is transferred into a glass melt of a furnace (10). Gas bubbles released into the melt form a gas curtain (12) which causes enhanced mixing of the material to accelerate the dissolution of the components of the added material (7). The presence of the gas bubbles (12) reduces the cross section of the molten glass (32) through which current passes, which in turn increases the electrical resistance of the glass melt (32) or power density at constant current. A highly oxidizing hot region is produced under the location where the material is introduced into the furnace (10). Drawn off glass is shaped and quenched into at least two sizes of approximate spheres (23). The spheres (23) are cooled sufficiently fast to be thermally tempered and have a surface compressive strength level above 5000 psi.