Feasibility study on the start - up and shutdown of reserve tube mills in the direct system of pulverized cool preparation without oil - aided firing 直吹式制粉系统备用磨煤机启停不投油的可行性分析
For the problem that on - line monitoring of primary air of direct firing pulverizing system ca n ' t be complete achieved , the chaotic properties of parameter change of two - phase flow in pipe is analyzed in the paper , according to the pressure difference signal of two - phase flow system 目前电站锅炉直吹式制粉系统的一次风气固两相流流动状态在线监测仍未得以实现,针对这一难题,本文首次基于管道内气固两相流差压信号对其流动状态变化的混沌特性进行理论研究。
( 1 ) in view of the selected coal contents , the paper determines pulverizer styles , and then shows two potential coal powder plans : dual inlet dual outlet pulverizer with plus pressure primary fan and direct air supply , middle speed pulverizer with plus pressure primary fan and direct air supply ( 1 )通过煤质成分析确定出磨煤机的选型,在此基础上得出两种制粉系统拟定方案:双进双出钢球磨煤机正压冷一次风机直吹式制粉系统和中速磨煤机正压冷一次风机直吹式制粉系统。
直: straight; stiff吹: blow; puff式: type; style制粉: powder process系统: system直吹式制粉系统磨煤机: direct fired mill; direct-fired mill; direct-fired mull直吹式制粉系统燃烧: direct firing直吹式燃煤制粉系统: coal pulverizing systems in type of direct injection直吹式制粉锅炉: direct fired boiler; direct-fired boiler直吹式系统: unit system燃煤制粉系统: coal pulverizing system直吹式燃烧: direct-firing仓储式燃煤制粉系统: coal pulverizing systems in type of storage bunker还需磨机中储仓制粉系统: ball mill storage pulverized coal system仓贮式制粉煤系统: pulverized coal-storage system; storage pulverized-coal system双辊式制粉机: double roll风授粉系统: wind pollinating system煤粉系统: pulverized coal system磨粉系统: scratch system授粉系统: pollination system轧粉系统: reduction system磨粉系统出粉量: release of break配粉系统强化工艺: batch fortification system全淹没干粉系统: total flooding system of powder轧粉系统的产物: reduction stock