DRUM-TYPE CONCENTRATOR

• Main Author: FUJISAWA HIDEKI
• Format: Patent
• Language: English; Japanese
• Published: 15.04.2024
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRESSES; PRESSES IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

To provide a drum-type concentrator capable of promoting solid-liquid separation of mud transferred to a screw blade in a concentration chamber.SOLUTION: A concentrator for separating a filtering liquid from an outer cylindrical screen 2 while transferring mud in a concentration chamber 7 by a screw blade 3 and discharging the concentrated mud through an outlet 11 of the concentration chamber 7 comprises a slide-contact rake 22 including a bridge member 23 which is fixed to the front and rear of the screw blade 3 in the axial core direction of a screw shaft 4 and through an outlet 31 of which formed with a prescribed gap partial mud is discharged in a ridge shape, and a slide-contact member 24 fixed to a side close to the outer cylindrical screen 2 of the bridge member 23 and slid into contact with the inner surface of the outer cylindrical screen 2. The mud deposited in the concentration chamber is raked in a ridge shape by the slide-contact rake 22 to promote concentration work of the mud.SELECTED DRAWING: Figure 1 【課題】濃縮室でスクリュー羽根に移送される汚泥の固液分離を促進するドラム型濃縮機を提供する。【解決手段】濃縮室７の汚泥をスクリュー羽根３で移送しながら外筒スクリーン２からろ液を分離し、濃縮室７の排出口１１から濃縮汚泥を排出する濃縮機において、スクリュー軸４の軸芯方向に沿ってスクリュー羽根３の表裏に固定し、所定の間隙で形成した流出口３１から一部の汚泥が畝状に排出される橋架部材２３と、橋架部材２３の外筒スクリーン２との近接辺に固着し、外筒スクリーン２内面に摺接する摺接部材２４と、で構成した摺接レーキ２２を備えたもので、摺接レーキ２２によって濃縮室に堆積する汚泥を畝状に掻き分け、汚泥の濃縮作用を促進させる。【選択図】図１