Preventing clogging in pressure diffusers
    1.
    发明授权
    Preventing clogging in pressure diffusers 失效
    防止压力扩散器堵塞

    公开(公告)号:US5187956A

    公开(公告)日:1993-02-23

    申请号:US718294

    申请日:1991-06-20

    IPC分类号: D21C9/04 D21D1/40 D21D5/02

    CPC分类号: D21C9/04 D21D1/40 D21D5/02

    摘要: In a pressure diffuser, clogging of the tapered inlet passageway at the bottom of the vessel is minimized by providing a number of lubricating fluid introducing nipples disposed circumferentially around the annular passageway. The nipples introduce lubricating fluid so that it flows upwardly along the inner wall of the vessel. The vessel inner wall and the bottom support for the screen at the passageway are polished and free of projections, so that friction is minimized. The nipples are provided in sets that are staggered so that a nozzle is placed about every 15.degree. around the circumference of the vessel, and a common annular header--mounted on the support legs of the vessel--provides the lubricating fluid. Should screen movement slow as a result of paper pulp properties near the screen bottom support, the flow rate of lubricating liquid can be increased so as to significantly dilute the pulp at the passageway until slow movement of the screen is overcome.

    摘要翻译: 在压力扩散器中,通过在环形通道周围设置多个润滑流体引入乳头,使容器底部的锥形入口通道堵塞最小化。 乳头引入润滑流体,使其沿容器的内壁向上流动。 在通道处的屏幕的容器内壁和底部支撑被抛光并且没有凸起,使得摩擦力最小化。 乳头以交错的方式设置,使得喷嘴围绕容器的圆周大约每隔15°放置,并且在容器的支撑腿上安装有共同的环形头部 - 提供润滑流体。 由于屏幕底部支撑附近的纸浆性质,屏幕运动缓慢,可以增加润滑液体的流速,以便在通道处显着稀释纸浆,直到屏幕的缓慢移动被克服。