Furnace system

A furnace system, comprising:

• a furnace;
• a mixing chamber defining an inlet end configured to receive separate streams of raw material and preheated cullet mix and an outlet end spaced from the inlet end and configured to discharge a combined stream of the raw material and the preheated cullet mix, the mixing chamber tapering from the inlet end to the outlet end, the mixing chamber defining a first inlet in the inlet end configured to receive one of the raw material or the preheated cullet mix, the mixing chamber further defining a second inlet in the inlet end configured to receive the other of the raw material or the preheated cullet mix;
• a charger having an inlet end coupled to the outlet end of the mixing chamber and configured to receive the combined stream of the raw material and the preheated cullet mix and an outlet end through which a mixture of the raw material and the preheated cullet mix is discharged from the charger into a molten bath in a furnace;
• and,
• a duct system comprising
• an exhaust duct in fluid communication with an exhaust fluid outlet of the furnace and configured to vent fluid exhausted from the furnace,
• at least one of a mixing chamber exhaust duct in fluid communication with the mixing chamber and configured to vent fluid exhausted from the mixing chamber or a charger exhaust duct in fluid communication with the charger and configured to vent fluid exhausted from the charger,
• wherein a charger intake duct is in fluid communication with the exhaust duct and configured to deliver a portion of the fluid exhausted from the furnace to the charger;
• wherein the charger exhaust duct is in fluid communication with the exhaust duct where the fluid exhausted from the charger is mixed with a portion of the fluid exhausted from the furnace;
• and wherein the mixing chamber exhaust duct is in fluid communication with the exhaust duct where the fluid exhausted from the mixing chamber is mixed with a portion of the fluid exhausted from the furnace.