摘要
介绍了中速磨煤机、双进双出钢球磨煤机在国内的制造情况及性能特点。详细分析了中速磨煤机正压直吹式制粉系统和双进双出钢球磨煤机正压直吹式制粉系统各自的性能特点和各项经济指标。从经济性比较,BBD型双进双出钢球磨煤机正压直吹系统年费用高于HP型中速磨煤机正压直吹系统160万元(年利用小时数为6500h),从技术分析比较,燃用高挥发分烟煤的锅炉采用双进双出钢球磨煤机正压直吹和中速磨煤机正压直吹系统都是可行的,但前者对锅炉长期安全运行是十分有利。
The paper briefs the manufacturing sination at home and performance features of medium speed pulverizers and double inlet and outlet tubular ball mills;analyzes in detail the performance features and various economic indexes of barotropic direct fired systems with medium speed pulverizers and double inlet and outlet tube mills separately .According to the economics comparison,the annual cost of direct fired system with BBD type double inlet and outlet tube mills is higher than that of direct fired system with HP type medium speed pulverizers by 1.60 million yuan （annual utilization hours of 6 500 h）.According to the technical analysis,to select the barotropic direct fred systems with double inlet and outlet tube mills or median speed pulverizevs for high - volatile butuminous coal fred boilers are all feasible,but the former system is extremely advantageous for the long period safe operation of boilers.
出处
《电力设备》
2006年第6期28-31,共4页
Electrical Equipment
关键词
火电厂
超超临界机组
制粉系统
选型
磨煤机
fossile fred power plant
ultra - supercritical pressure generating unit
coal pulverizing system
pulverizers（mills）
type selection
