Method for the production of dry and pourable mixture for loading glass melt furnace with particle-like components, comprises mixing quartz, sodium carbonate and calcium carbonate and adding water with the mixture

摘要

The method for the production of dry and pourable mixture for loading glass melt furnace (1) with particle-like components from quartz, sodium carbonate and calcium carbonate, comprises mixing quartz (35-80 wt.%) with an average particle size of 100-500 mu m, sodium carbonate (10-25 wt.%) with average particle size of 100-500 mu m and calcium carbonate (2-20 wt.%) with particle size of 10-100 mu m, adding water (8-12 wt.%) with the mixture and subsequently delivering the wet granulate under circulation at 400[deg] C in a dryer (29) in water-free manner. The method for the production of dry and pourable mixture for loading glass melt furnace (1) with particle-like components from quartz, sodium carbonate and calcium carbonate, comprises mixing quartz (35-80 wt.%) with an average particle size of 100-500 mu m, sodium carbonate (10-25 wt.%) with average particle size of 100-500 mu m and calcium carbonate (2-20 wt.%) with particle size of 10-100 mu m, adding water (8-12 wt.%) with the mixture and subsequently delivering the wet granulate under circulation at 400[deg] C in a dryer (29) in water-free manner. Calcium-magnesium-carbonate (2-10 wt.%), feldspar (2-10 wt.%) and sodium sulfate (0.1-2 wt.%) are added to the mixture. The drying is caused by contacting the particle with hot gas. The dryer is heated through exhaust gas from the gas melt furnace heated by burner (4) and from pre-heater (8) for the combustion air for the glass melt furnace. The direct loading of the glass melt furnace is carried out during the melting operation.