A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES GEBLÄHTEN GRANULATS
A method for producing an expanded granulate made of a sand grain-shaped mineral material uses a propellant. The material is transported along a transport path through multiple heating zones in a furnace shaft, heated to a critical temperature at which the surfaces of the sand grains plasticize, and the sand grains are expanded based on the propellant. The material is fed from the bottom together with an amount of air; the material is transported from the bottom to the top along the transport path by the air quantity which flows from the bottom to the top in the furnace shaft and the sand grains are expanded in the upper half of the transport path. The material is heated such that the material immediately prior to entering into the furnace shaft is at a material entry temperature lower than the critical temperature and higher than the ambient temperature.
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES GEBLÄHTEN GRANULATS
A method for producing an expanded granulate made of a sand grain-shaped mineral material uses a propellant. The material is transported along a transport path through multiple heating zones in a furnace shaft, heated to a critical temperature at which the surfaces of the sand grains plasticize, and the sand grains are expanded based on the propellant. The material is fed from the bottom together with an amount of air; the material is transported from the bottom to the top along the transport path by the air quantity which flows from the bottom to the top in the furnace shaft and the sand grains are expanded in the upper half of the transport path. The material is heated such that the material immediately prior to entering into the furnace shaft is at a material entry temperature lower than the critical temperature and higher than the ambient temperature.
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES GEBLÄHTEN GRANULATS
METHOD AND DEVICE FOR PRODUCING AN EXPANDED GRANULATE
PROCÉDÉ ET DISPOSITIF POUR LA PRODUCTION D'UN GRANULAT EXPANSÉ
BRUNNMAIR ERNST ERWIN (author) / SALCHINGER GERHARD (author)
2020-07-22
Patent
Electronic Resource
German
IPC:
C04B
Kalk
,
LIME
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