集流式(Converflo)飘片流浆箱运行特性及流送机理的研究

A Study on Operating Property and Transfer Mechanism of Converflo Headbox

本文用实验模拟的方法,对Converflo流浆箱纸浆流送机理进行了探讨,并提出了流送功能元的概念及研究模式。对孔扳开孔事、车速、纸浆浓度等因素对Converflo流浆箱操作状态的影响进行了研究,找出了最佳孔板开孔率及最佳车速范围以及相对应的流送功能元最佳阻抗因子和最佳比客流。 实验结果表明,Converflo流浆箱具有浓度适应范围大,布浆稳定等优点,但只适用于中高速纸机。若将其结构重新设计,有可能应用干低中速纸机。

Converflo headbox 4s a new type headbox widely used in recent years With the increase of importing this headbox. it has been a vital subject to study for developing the paper machine in our country.A studying model called 'function element of fluid carrying' is established and the transfer mechanism of Converflo headbox is studied. The paper analyzed the influence factor caused by machine velocity, pulp consistency and the open area of holey plate. The optimal machine velocity, open area of holey plate, the optimal Ub and R for operation has been investigated. By regression calculus from experiment data, flow resislance equation of bank tube, perforated plate and converging channel are given.