杨木BCTMP工艺描述(专业技术资料)VIP专享VIP免费

杨木化机浆车间磨浆工段工艺描述目录1介绍__________________________________________________________________________32木片处理______________________________________________________________________42.1预蒸________________________________________________________________________________42.2木片洗涤____________________________________________________________________________52.3脱水螺旋洗涤水的净化________________________________________________________________62.4木片的预蒸__________________________________________________________________________72.5PREX预浸__________________________________________________________________________82.6预热仓与反应仓______________________________________________________________________93主线磨浆_____________________________________________________________________103.1一段磨进浆螺旋_____________________________________________________________________103.2一段磨_____________________________________________________________________________113.3一段旋风分离器_____________________________________________________________________113.4二段磨_____________________________________________________________________________123.5二段磨旋风分离器___________________________________________________________________124消潜,筛选,低浓磨及脱水________________________________________________________134.1消潜_______________________________________________________________________________134.2筛选_______________________________________________________________________________134.3渣子磨_____________________________________________________________________________154.4脱水_______________________________________________________________________________164.5滤液槽_____________________________________________________________________________175高浓漂_______________________________________________________________________175.1在双辊挤浆机脱水___________________________________________________________________175.2漂白化学品的混合___________________________________________________________________195.3漂后浆洗涤_________________________________________________________________________206漂后浆储存___________________________________________________________________217白水塔_______________________________________________________________________228化学品制备___________________________________________________________________238.1清水加热___________________________________________________________________________238.2预浸渍化学品_______________________________________________________________________248.3漂白化学品储存_____________________________________________________________________258.4亚硫酸钠的储存及预浸化学品的添加___________________________________________________268.5化学品日用罐_______________________________________________________________________278.6漂白化学品的加入及流量校正_________________________________________________________289热回收291介绍METSO为BCTMP车间配备了最新著名的设备。BCTMP车间将是一个现代化的系统，设计年产300BDMT/D的高质量全漂杨木化机浆以供应新闻纸的生产。BCTMP工艺将分成下列部分，描述如下：-木片洗涤和浸渍-一段和二段盘磨-低浓磨浆-筛选-渣浆盘磨-浆料浓缩-HC漂白-漂白贮存-化学品系统-热回收2木片处理2.1预蒸木片进入BCTMP车间时，可能带有金属、石头和砂子等杂质。通过木片洗涤除掉这些研磨物使他们不能进入盘磨机，否则，会立即损坏或迅速磨损盘磨机盘片。木片送入1#预蒸仓，将木片贮存...