초록

Converting thermally meltable materials to a liquefied state is carried out on a lining of pulverulent material. As liquefied material is drained from the surface, additional unmelted material is fed onto the surface to maintain the lining substantially intact.

대표청구항 ▼

A method of melting glassy materials or the like comprising: rendering batch materials to a partially melted, flowable state on a sloped layer of pulverulent material encircling a heated cavity; permiting the partially melted material to flow substantially freely from the cavity; gathering the drain

A method of melting glassy materials or the like comprising: rendering batch materials to a partially melted, flowable state on a sloped layer of pulverulent material encircling a heated cavity; permiting the partially melted material to flow substantially freely from the cavity; gathering the drained material in a pool; and heating the material in the pool to further melt the material. Apparatus for melting glassy materials or the like comprising: a vessel mounted for rotation about a substantially vertical axis, means to feed batch materials to the vessel, means to heat the interior of the vessel, an outlet through which partially melted material may flow from the vessel, a furnace adapted to hold a pool of molten material drained from the vessel, and means to heat the pool of material held in the furnace.