Method and apparatus for mixing

A liquid and container technology, applied in the field of devices and methods for mixing, can solve problems such as disturbing production, shortening the service life of containers, etc., to achieve the effect of reducing power requirements

Inactive Publication Date: 2004-02-18
COMMONWEALTH SCI & IND RES ORG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Not only is cleaning an additional expense, but it clearly interfer

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Examples

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[0023] The method and apparatus of the present invention will now be described with respect to a laboratory-scale type precipitator. The following description is only for describing the present invention, and is by no means intended to limit the scope of the present invention. In addition, industrial precipitators for the Bayer process have also been manufactured. The diameter of this industrial type settler is about 11 meters and the height is about 28 meters. It corresponds to a volume of approximately 2.7 megaliters. The following description is only exemplary, and is not intended to limit the interpretation of the scope of the present invention.

[0024] Such as figure 1 As shown, the precipitator 1 of the present invention includes a container 2 composed of a light-walled vertical cylinder 3 having an upper end 4 and a tapered bottom 5. A Rushton turbine 6 is mounted on a shaft 7 rotated by a drive motor (not shown). The laboratory-scale type of precipitator adopts figure 1 ...

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Abstract

A method and apparatus for mixing liquids or liquids(9) with particles(8) without the aeration of the liquid. The liquid and/or particles(8) opposed in a vessel(2) having an upper end(4) and a lower end(5) and a containing wall(3) extending between the upper and lower ends. A mechanical rotating means(6) disposed adjacent the upper end(4) and submerged in the liquid(9) is used to induce a rotational flow directed radially outward from a central region of the vessel towards the containing wall(3) to establish a swirling flow. The flow is characterised by an outer annular region(11) of moderate rotational flow adjacent the containing wall(3) moving from the upper end(4) toward the lower end(5), an inward flow adjacent the lower end of the vessel(2) and an inner core(12) of rotational flow about the central region of the vessel(2). The inner core flow(12) moves from the lower end(5) toward the upper end(4) and extends substantially from adjacent the lower end(5) of the vessel to the mechanical rotating means(6).

Description

technical field [0001] The present invention relates to devices for mixing liquids or liquids and particles to form slurries or the like. The device of the invention is suitable for mixing one liquid with another liquid or mixing a liquid with particles to form a homogeneous suspension as well as mixtures in which not all particles are well suspended. The present invention is intended for use where it is undesirable and sought to avoid entrainment of gas from the liquid surface during mixing. Background technique [0002] This mixing device is widely used in many industrial processes. One such application is agitated precipitators used in the production of crystals to be precipitated from supersaturated liquids. Such precipitators are used in many industrial processes. The present invention will be specifically described below for such an application, but it should be understood that the scope of the present invention is not limited to this particular application. [000...

Claims

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Application Information

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IPC IPC(8): B01F23/47B01F23/57B01F27/906B01F27/91
CPCB01F3/1221B01F7/00383B01F7/1625B01F3/0853B01F2005/0017B01F23/43B01F23/53B01F2025/913B01F27/1111B01F27/81B01F23/50B01F27/80
Inventor 马丁·西里尔·维尔什
Owner COMMONWEALTH SCI & IND RES ORG
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