Direct contact raining bed counterflow cullet preheater and method for using
This patent describes a method of preheating cullet for use in a glass furnace. The method comprising: introducing cullet into a preheater near the top thereof; allowing glass cullet to fall downward through the preheater to form a raining bed while hot gases are introduced near the bottom of the preheater and allowed to flow upward to directly contact the cullet to thereby heat the cullet to temperature below the agglomeration temperature of the cullet but above 700{sup 0}F.; controlling the residence time of the cullet in the preheater by deterring the cullet's fall through the preheater with a series of deflectors arranged within the preheater; and introducing the heated cullet into a furnace containing molten glass.
- Assignee:
- Gas Research Institute, Chicago, IL
- Patent Number(s):
- US 4875919
- Application Number:
- PPN: US 7186989A
- OSTI ID:
- 7150398
- Country of Publication:
- United States
- Language:
- English
Similar Records
System for charging batch/cullet in a glass furnace
Glass batch preheating performance: a review