Furnaces and Forehearths

Forglass RCF Forehearth


Forglass RCF Forehearth

Effective and stable


Radiation cooling is the most effective way to extract large amounts of heat from a stream of glass flowing through a forehearth. Such systems can be controlled automatically or manually, with the latter being the cheapest method (because it uses natural processes: radiating of the heat energy and descending of the cooler glass) of controlling the process of thermal homogenization of glass during cooling. This solution also has a disadvantage: with wide-open radiation vents, it is practically impossible to maintain positive pressure on the glass surface, which makes it difficult to control the firing of the zone based on the input from thermocouples.

Great working stability

This solution is especially suited for the rear zones of narrow (16-36”) forehearths working with a long RT (> 60 min). Forglass offers a system of longitudinal vents with sliding covers that provide great working stability. Radiation vents (much smaller in size with split, independently raised covers) are also the cheapest tool for correcting temperature gradients across the stream of glass. Forglass also offers systems of corrective radiation vents with three independent covers, usually installed at the head of the rear and middle zones and at the end of the EQ zone.