Melting glass with two stage NO.sub.x control

Method and apparatus for converting hazardous material to a rela

Method and apparatus for fabricating lightguide preforms

Method and apparatus for feeding a rotating melter

Method and apparatus for feeding an ablation liquefaction proces

Method and apparatus for feeding batch material

Method and apparatus for feeding raw material to an arc furnace

Method and apparatus for furnace lid purging

Method and apparatus for guiding glass batch in a glass melting

Method and apparatus for preheating charging material having org

Method and apparatus for preheating glass batch

Method and apparatus for preheating glass batch

Method and apparatus for preheating glass batch

Method and apparatus for preheating pulverous materials at reduc

Method and apparatus for preheating pulverous materials prior to

Method and apparatus for preheating pulverous materials prior to

Method and apparatus for preheating pulverous materials prior to

Method and device for preheating raw materials for glass product

Method and device for reducing NO.sub.x generated in glass-melti

Method for batch preheating and pollution abatement in glass man