초록 ▼

In a glass melting operation, cullet is employed as a particulate emissions collector. Cullet of a selected size is contacted with exhaust gases in a gas/solid contact vessel wherein particulates are deposited onto the cullet. Double screening of cullet is employed to avoid introducing cullet dust t

In a glass melting operation, cullet is employed as a particulate emissions collector. Cullet of a selected size is contacted with exhaust gases in a gas/solid contact vessel wherein particulates are deposited onto the cullet. Double screening of cullet is employed to avoid introducing cullet dust to the gas stream. Electrostatic means may be employed to enhance particulate collection in the bed of cullet.

대표청구항 ▼

A method of melting glass in a furnace from which is discharged an exhaust gas stream that includes particulate materials, comprising: classifying cullet to consist essentially of cullet particles each of whose maximum dimension is at least 2 millimeters and no greater than 40 millimeters by subject

A method of melting glass in a furnace from which is discharged an exhaust gas stream that includes particulate materials, comprising: classifying cullet to consist essentially of cullet particles each of whose maximum dimension is at least 2 millimeters and no greater than 40 millimeters by subjecting the cullet to a first vibratory screening operation and transferring and subjecting the cullet to a second screening operation; passing a stream of the exhaust gas prior to discharge to the atmosphere through a bed of the classified cullet, thereby depositing at least some of the particulate materials on the cullet; and feeding the cullet with the deposited materials thereon into the melting furnace.