... -in and discharge system. The highest feed-in quantity every 24 hour achieved 5 tons, Discharge time for 300kg carbon black only ... highest feed-in amount of the integral unit equipment every 24 hours achieves 15 tons. c. Highly effectively gas heating system ... .2 tons coals. After the fuel gas aid combustion, every 24 hour need 0.3 tons coal, which enhances production efficiency in ...