Study on a separation technology for more efficient utilization of pulverized coals in cement plants

摘要: Abstract A new separation technology for pulverized coals in cement plants was proposed. Two coals, NJ and ZZ, were sampled two China. Not only the ash volatile matter content but also size of ash-containing particles those from which volatiles have to evolve been determined with a float–sink method laser particle analyzer. As coal needed kiln calciner is usually at ratio 4:6 calorific value, can be separated 60 µm 50 µm ZZ samples, respectively. It found that (air dry base) coarser part sample 23.51%, contrast 34.72% before separation. Similarly, 13.86%, 19.50% The proposed burn while finer calciner. combustion simulation flames are improved temperature profiles change little. expected energy efficiency quality will both this technique. Expected economical benefit possible problems discussed.