Trend Glass sp. z o.o. has selected Forglass to perform a major overhaul of their W-2, regenerative end port-fired furnace in Radom (Poland) to melt ultra-white flint tableware glass, with melting capacity of 150 tpd. To accomplish the objective, Forglass had to increase the height of furnace superstructure, redesign burner port necks and the top part of regenerator chambers, change the checker lining (140×140 mm instead of 170×170 mm chimney blocks) and overhaul the oscillating batch charger with vibrating gutter. Furthermore, Forglass designed side wall electric boost (1200 kVA) with required changes of melting tank. Performance parameters of the re-built furnace in some respects exceeded the values guaranteed in the contract:
a. The pull was increased to 155 tpd (without boost)
b. The specific melting capacity is 1,95 t/(m2·24h) for 30% of cullet
c. The specific energy consumption was reduced by 300 kcal/kg
d. Glass quality index - below 10 bubbles Ø 0.5 mm /100 g of glass.
Trend Glass commented that the quality of the engineering and assembly works performed by Forglass were characterized by professionalism, accuracy and creativity in solving problems, as well as cooperation of Forglass employees with contractors and subcontractors of other projects, which was critical to the ultimate success of this very large investment project.