Cullet is glass that is recycled. Cullet can be made from coloured glass or white glass.
In a glass furnace, cullet replaces new mineral material (sand, soda, limestone + various other materials...).
The introduction of cullet into glass furnaces reduces the consumption of natural gas and raw materials in the furnace and therefore the raw materials in the furnace and therefore the associated CO2 emissions. Verallia's coloured glass furnaces
Verallia's coloured glass furnaces are saturated with cullet. To increase the cullet content in the white glass furnaces, it is necessary to increase the capacity of the furnaces, it is necessary to increase the white glass removal capacity of cullet processing sites.
New generations of optical sorting machines can achieve a white glass purity of 99,8%.
To achieve this, it is necessary to modify the existing installations to include new optical sorting machines in cascade. This also leads to the implementation of new means related to bulk handling: conveyors, lifts, vibrating distributors, silos, etc.