Expanding device for combining a liquid species and a particulate solid species

A contact device, a technology for solid particles, used in transportation and packaging, mixers with rotary stirring devices, chemical instruments and methods, etc., can solve problems such as energy consumption

Active Publication Date: 2013-09-25
VEOLIA WATER SOLUTIONS & TECH SUPPORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More specifically, in some configurations a vortex occurs, which has the double disadvantage of dissipating energy ineffectively and causing shear in the vat

Method used

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  • Expanding device for combining a liquid species and a particulate solid species
  • Expanding device for combining a liquid species and a particulate solid species
  • Expanding device for combining a liquid species and a particulate solid species

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0051] exist figure 1 Above, an agitator 100 is shown, which may typically be used in a contacting tank for contacting a liquid species with a solid species. The stirrer comprises: a shaft 110 about which the stirrer is given rotational motion (for example due to the action of a motor not shown); and blades 120 which are generally regularly distributed around the shaft 110 and which are generally identical for all The shape and arrangement of the blades allows the rotating agitator to apply an axial thrust 130 (also defined as longitudinal thrust) to the liquid in which the agitator is immersed. The number of blades of the agitator 100 is at least two, but the more blades the agitator includes, the better the performance of the device.

[0052] Typically, such agitators may be arranged in a draft tube, a device consisting essentially of a cylinder, usually with a circular lower base, hollow, separating the inner and outer areas, pushed axially by 130 The propelling fluid flo...

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PUM

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Abstract

The invention relates to an expanding device for combining a liquid species and a particulate solid species, which includes a vessel 200 in which a stirrer 800 having paddles that rotate about a shaft 810 is arranged, the stirrer being optionally provided with a flow guide tube 210, wherein the vessel 200 also includes a static obstacle 830 that is generally centred around said shaft and aligned with the stirrer, characterised in that the static obstacle 830 has, in a plane passing through the shaft, an outer transverse dimension that increases as it moves away from the stirrer 800 parallel to said shaft 810, having a constant or increasing slope relative to said shaft.

Description

technical field [0001] The present invention relates to a contacting device of a liquid variety and of an enlarged solid variety, suitable for the treatment of industrial and municipal waste water laden with particles and desired to be homogenized, and for use in consumption or for use requiring special cleanliness Water purification treatment for industrial processes of water. [0002] The invention is particularly suitable for the treatment of fluids to be treated by flocculation. For example, the invention is applicable to technology, which is a sedimentation system that uses microsand additives and flocculation polymers to waste liquids to cause ballast flocculation, that is, flocculent sediments grow around a ballast composed of microsand particles. The water is agitated by an agitator with blades to create a stick. A flocculant such as ferric chloride can be added to remove colloidal loading prior to processing. [0003] The invention is also applicable to the sedim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F7/00B01F3/12B01F7/16B01F27/906B01F27/91
CPCB01F23/53B01F27/15B01F27/86B01F27/91B01F2101/305B01F23/59
Inventor C·勒韦克T·图弗诺
Owner VEOLIA WATER SOLUTIONS & TECH SUPPORT
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