公开(公告)号：US4906369A

公开(公告)日：1990-03-06

申请号：US110817

申请日：1987-10-21

Applicant: Albert Bahr

Inventor： Albert Bahr

IPC: B01D29/09 ,  B01D29/11 ,  B01D36/02 ,  B01D37/03 ,  B30B9/10 ,  B30B9/24

CPC classification number: B30B9/24 ,  B01D29/096 ,  B01D29/115 ,  B01D36/02 ,  B01D37/03 ,  B30B9/105

Abstract: In an apparatus for dewatering sludge the sludge to be dewatered is continuously fed to a pre-dewatering stage and is subsequently transferred to an enclosed sludge chamber volume, which is intermittently moved past stationary pairs of pressure-applying plates. The pre-dewatering stage is consituted by a stationary dewatering container which serves also as a buffer between the means for the continuous fooding of sludge and the means for a discontinuous and intermittent transfer of the sludge to the sludge chamber volume. Owing to that design the plant has a low structural expenditure and is operable at a high dewatering rate.

Abstract translation: 在用于脱水污泥的设备中，要脱水的污泥被连续地供给到预脱水阶段，并且随后被转移到封闭的污泥室容积中，其间歇地移动经过固定的压力施加板对。 预脱水阶段由固定式脱水容器构成，其也用作用于连续食用污泥的装置和污泥不连续和间歇地转移到污泥室容积之间的缓冲区。 由于这种设计，该工厂的结构性支出较低，可脱水率高。

公开(公告)号：US4275847A

公开(公告)日：1981-06-30

申请号：US55189

申请日：1979-07-02

Applicant: Albert Bahr ,  Joachim Kues

Inventor： Albert Bahr ,  Joachim Kues

IPC: C22B21/00 ,  B02C19/00 ,  B02C21/00 ,  B03B9/04 ,  B03D1/01 ,  B03D1/02 ,  C22B7/04 ,  E04H3/12 ,  B02C23/14

CPC classification number: B03D1/01 ,  B03B9/04 ,  B03D1/002 ,  B03D2201/02 ,  B03D2203/04

Abstract: A process for the treatment of an aluminum-salt slag produced in the remelting of aluminum by the addition of salt to aluminum scrap wherein the aluminum salt slag is subjected to pressure and impact rolling to a thickness of about 0.2 mm to about 1 mm and the product is milled to an X.sub.80 value of about 130 to 150 microns. The milled product is classified in a plurality of stages to recover therefrom a large-particle fraction consisting at least predominantly of aluminum particles, and a fine-particle fraction. The fine-particle fraction is subjected to flotation in at least one flotation stage to which a base is added in an amount of 0.04 to 0.4 g of the base per ton of the material subjected to flotation to bring the pH to between 10 and 11, whereupon a cation active collector of the formula RO--(CH.sub.2).sub.n --NH--(CH.sub.2).sub.n --NH.sub.2 is added to recover an impurity-containing froth of low chloride level and a concentrate containing most of the chlorides of said slag.

Abstract translation: 一种用于通过向铝废料中加入盐来重新熔化铝的铝盐矿渣的处理方法，其中铝盐渣经受压力和冲击轧制至约0.2mm至约1mm的厚度， 产品被研磨至约130至150微米的X80值。 研磨产物分为多个阶段，从中回收至少主要由铝颗粒组成的大颗粒级分和细颗粒级分。 在至少一个浮选阶段对细颗粒级分进行浮选，其中加入碱的量为每吨经过浮选的0.04至0.4g的碱，使pH在10和11之间， 然后加入式RO-（CH2）n-NH-（CH2）n-NH2的阳离子活性收集剂以回收含氯量低的含杂质的泡沫和含有大部分所述渣的氯化物的浓缩物。

公开(公告)号：US4181616A

公开(公告)日：1980-01-01

申请号：US820015

申请日：1977-07-28

Applicant: Albert Bahr

Inventor： Albert Bahr

IPC: B01D33/03 ,  B30B9/24 ,  B01D33/00

CPC classification number: B30B9/243 ,  B01D33/03 ,  B30B9/24

Abstract: A device for dewatering sludge or the like, particularly sludge from water purification plants, having a preliminary pressureless pocket dewatering stage A, one or more horizontal dewatering zones B formed by horizontally extending filter belts located below the preliminary stage A, those zones being located serially one below another, a medium pressure drum filter stage C, and thereafter a high-pressure dewatering unit D.

Abstract translation: 用于脱水污泥等的装置，特别是来自净化水处理厂的污泥，具有初步的无压力袋脱水段A，一个或多个卧式脱水区B，其通过水平延伸位于初级A下方的过滤带形成，这些区域串联连接 一个低于另一个的中压鼓过滤器级C，之后是高压脱水单元D.

公开(公告)号：US4168236A

公开(公告)日：1979-09-18

申请号：US863894

申请日：1977-12-23

Applicant: Albert Bahr

Inventor： Albert Bahr

IPC: B01D33/03 ,  B01D36/02 ,  B01D37/03 ,  B30B9/24 ,  B01D33/04

CPC classification number: B30B9/243 ,  B01D33/03 ,  B01D36/02 ,  B01D37/03 ,  B30B9/24

Abstract: Apparatus is provided for the continuous treatment of sludge, which is made possible through the advantageous combination of at least two independent dewatering steps at consecutively higher pressures and increased dwell time. In a preferred embodiment there is provided a three stage process where there is a first dewatering at the pressure provided by gravity action, the sludge being strained through continuous filter pockets; a second moderate pressure stage with a drum filter press; and a third higher pressure stage.

Abstract translation: 提供了用于连续处理污泥的设备，其通过在连续更高的压力下和至少两个独立脱水步骤的有利组合增加驻留时间而实现。 在优选的实施方案中，提供了一种三级方法，其中在由重力作用提供的压力下进行第一次脱水，污泥通过连续的过滤袋应变; 具有鼓式压滤机的第二中等压力级; 和第三高压阶段。