新型的外流压力筛和对筛选技术的浅析

Introduction of a New Outflow Pressure Screen and Simple Analysis on Screening Technology

升流式外流压力筛的主要特点———轻重杂质自动分离,重杂质不进入筛选区域,筛选能力大,筛鼓和旋翼使用寿命长。影响压力筛筛选性能的主要因素有:进浆压,旋翼线速,压降,尾浆与良浆比,进浆浓度,筛鼓,筛鼓与旋翼的间隙等。

The main characters of the upflow outflow pressure screen include: a)self separation of the light and heavy contaminants; b)heavy contaminant will not enter into the screening area; c)screening capacity is large and;d) prolonged the working life of screen drum and the selectifier The factors that influence the screening characters of the pressure screen are: approach flow pressure, linear velocity of the selectifier, pressure drop, ratio between rejects and accepted pulp, pulp concentration, screen drum, gaps between screen drum and the selectifier, etc