公开(公告)号：US20060021916A1

公开(公告)日：2006-02-02

申请号：US11172821

申请日：2005-07-05

申请人： Harald Hess ,  Axel Dreyer ,  Martin Kemper ,  Herbert Britz ,  Anton Selbherr ,  Dietrich Moeller

发明人： Harald Hess ,  Axel Dreyer ,  Martin Kemper ,  Herbert Britz ,  Anton Selbherr ,  Dietrich Moeller

IPC分类号： B03D1/14

CPC分类号： D21B1/327 ,  D21F1/70 ,  Y02W30/646

摘要： Method and flotation vessel for removing contaminants from aqueous fibrous suspension. Method includes damming up fibrous suspension at head level above base of flotation vessel, forming a bubble flow of gas bubbles rising counter to field of gravity in dammed up fibrous suspension, and guiding fibrous suspension crosswise to bubble flow, such that as contaminants are deposited on gas bubbles to form thickened flotation foam, fibrous suspension is cleaned. Method also includes discharging cleaned fibrous suspension as accepts, and discharging thickened flotation foam. A flow cross section of flotation vessel lying crosswise to bubble flow is straight on at least 80% of at least one side wall and a length of side wall is at least 1.5 times as great as that of an end wall. This abstract is neither intended to define invention disclosed in this specification nor intended to limit the scope of the invention in any way.

摘要翻译： 用于从水性纤维悬浮液中除去污染物的方法和浮选容器。 方法包括在浮选槽底部的头部水平处拦阻纤维悬浮液，形成气泡气泡，阻止纤维悬浮液与重力相反，引导纤维悬浮液与气泡流动交叉，使污染物沉积在 气泡形成增稠浮选泡沫，纤维悬浮液被清洗。 方法还包括排出清洗后的纤维悬浮液，并排出增稠的浮选泡沫。 至少与一个侧壁的至少80％相比，浮动槽的气流横截面是直的，并且侧壁的长度至少是端壁的1.5倍。 该摘要既不旨在定义本说明书中公开的发明，也不意图以任何方式限制本发明的范围。