초록 ▼

In a glass melting operation, cullet is employed as a waste heat collector and/or particulate emissions collector. Cullet is contacted with exhaust gases in a gas/solid contact vessel wherein the cullet is heated and particulates are deposited onto the cullet. The heated cullet is preferably sent di

In a glass melting operation, cullet is employed as a waste heat collector and/or particulate emissions collector. Cullet is contacted with exhaust gases in a gas/solid contact vessel wherein the cullet is heated and particulates are deposited onto the cullet. The heated cullet is preferably sent directly to the melting furnace. Electrostatic means may be employed to enhance particulate collection in the bed of cullet.

대표청구항 ▼

In a method of melting glass wherein raw glass batch materials and cullet are fed into a fuel fired melting furnace, and an exhaust gas discharge that includes waste heat is passed from the furnace, the improvement comprising: passing a stream of the exhaust gas prior to discharge to the atmosphere

In a method of melting glass wherein raw glass batch materials and cullet are fed into a fuel fired melting furnace, and an exhaust gas discharge that includes waste heat is passed from the furnace, the improvement comprising: passing a stream of the exhaust gas prior to discharge to the atmosphere through a bed of cullet so as to heat the cullet, and removing cullet from the cullet bed and feeding the removed cullet while in a heated state to the melting furnace in a stream separate from the stream of raw glass batch materials being fed to the furnace.