New Developments of Batch Briquetting

Briquetting of waste glass cullet fine particles for energy saving glass manufacture

“…As a glass batch raw material, the components of glass fines need to be understood. For standard bulk glass cullet, the proportions of amber, green and colourless cullet and organic contamination can now be closely controlled [9]. The chemical composition of different colours of bulk cullet is similar, except for the colorants and, in certain cases, SO 3 contents.…”

“…In addition to controlling the particle size distribution, granulation of virgin glass batch raw materials to avoid dust formation and evolution during melting has previously been attempted [9]. More widely, granulation (very small, < ca.…”

“…20 mm diameter) and briquetting (larger, < ca. 50 mm diameter) processes have all been researched in the glass industry [9][10][11].…”

“…sand, sodium carbonate, limestone, dolomite, etc.) and not to glass cullet fines [9,11]. Different inorganic and organic chemicals and minerals have been considered as binder materials in the production of consolidated glass batches.…”

“…Consequently, granules and pellets exhibit greater friability and lower mechanical strength and cohesion. Consolidated batch and / or cullet can also provide advantages in the furnace such as decreased melting and refining times [5,9,13], increased batch thermal conductivity compared with unconsolidated batch materials, shorter batch blankets on the surface of the melt [9] and higher output of glass or "pull rate" [14]. All of these can contribute to lower SEC and fuel consumption and hence lower CO 2 emissions from glass manufacture.…”