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中间储仓式钢球磨煤机制粉系统具有对煤种的适应性好、可靠性高、便于维护、锅炉燃烧易于控制等优点,但其自动控制与优化运行一直以来是困扰我国燃煤锅炉生产的历史性问题,具体表现为:磨煤机内的存煤量(或磨煤机料位)无法测量,所以无法实现给煤自动控制;因为存煤量无法稳定,所以磨煤机出口风温和系统风压难以控制;无法获取系统最佳工作点,所以不能保证制粉系统经济、优化运行。所以制粉系统的运行仍处于人为判断和手动操作的原始状态,操作强度大;堵煤、超温、欠煤现象时有发生,更为重
Intermediate storage silo mill coal milling system has good adaptability to coal, high reliability, easy maintenance, easy to control boiler combustion, etc., but its automatic control and optimized operation has been troubled by China’s coal-fired boiler production Historical problems, the concrete manifestation of: coal mill coal mill (or pulverizer level) can not measure, it can not be achieved automatic control of coal; because the amount of coal storage can not be stable, so the mill outlet wind temperature and system Difficult to control the wind pressure; unable to obtain the best system operating point, it can not guarantee the economic flour milling system, optimal operation. Therefore, the operation of milling system is still in the original state of man-made judgments and manual operations, operating intensity; plugging, over-temperature, owe coal phenomena have occurred, more serious