公开(公告)号：US4279742A

公开(公告)日：1981-07-21

申请号：US962045

申请日：1978-11-20

Applicant: Rumen V. Ivanov ,  Dobrin V. Nikolov ,  Ulrich Bilsing ,  Heinz Weber ,  Manfred Schmidt

Inventor： Rumen V. Ivanov ,  Dobrin V. Nikolov ,  Ulrich Bilsing ,  Heinz Weber ,  Manfred Schmidt

IPC: B03D1/04 ,  B03D1/14 ,  B03D1/02

CPC classification number: B03D1/04 ,  B03D1/028 ,  B03D1/1406

Abstract: A method of and apparatus for the flotation of mineral feedstock using the method of froth flotation. The method may be employed with flotation machines having their own air suction, or with flotation machines with subaeration. Pulps pretreated with flotation agents and having a density up to twice the normal density of ore pulps are submitted to a flotation process with a pulsed air flow by means of normal air supply periods alternating with periods wherein the quantity of air ranges from 1-90% of the normal air supply. The apparatus for carrying out said method makes use of known flotation machines with rotor-stator systems, which machines are modified to provide them with an air duct incorporating an air flow regulating member connected to an appropriate control means. With the existing methods of flotation there are obtained about 400 gr/l of solids in the pulp. With the present method with pulsing air supply there can be obtained about 800 gr/l of solids in the pulp.

Abstract translation: 使用泡沫浮选方法浮选矿物原料的方法和设备。 该方法可以与具有它们自己的空气抽吸的浮选机器一起使用，或者与具有通气的浮选机一起使用。 用浮选剂预处理并具有高达正常密度的矿浆的两倍的浆料的纸浆通过正常的空气供应周期与脉冲气流一起进行浮选过程，其中空气的量为1-90％ 的正常空气供应。 用于执行所述方法的装置利用已知的具有转子 - 定子系统的浮选机，这些机器被修改以为它们提供一个包含连接到适当的控制装置的空气流量调节构件的空气管道。 利用现有的浮选方法，在纸浆中获得约400g / l的固体。 利用脉冲空气供应的本发明方法，可以获得纸浆中约800g / l的固体。