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Low energy consumption and high evenness combined impeller stirring device

A stirring device and uniformity technology, applied in the field of combined paddle stirring device, can solve the problems of small circulation flow, poor mixing effect, high energy consumption, etc.

Inactive Publication Date: 2014-12-31
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the commonly used folding paddles have high energy consumption, poor mixing effect and small circulation flow
These factors lead to the traditional multi-layer downward pressure stirring device, high energy consumption and poor mixing effect

Method used

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  • Low energy consumption and high evenness combined impeller stirring device
  • Low energy consumption and high evenness combined impeller stirring device

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Embodiment Construction

[0017] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the invention is not limited by the embodiments.

[0018] Such as figure 2 Shown is a combination paddle stirring device with low energy consumption and high uniformity, the bottom paddle 3 adopts the push-down type, and the top paddle 2 adopts the pull-up type.

[0019] The bottom paddle 3 and the top paddle 2 are arc surface paddles, folded blade paddles, pusher paddles or other paddle types with axial flow.

[0020] The bottom paddles 3 are straight type paddles, inclined or curved paddles.

[0021] The top paddle 2 is an inclined paddle, a curved paddle or a straight type paddle.

[0022] The bottom paddle is 1 layer or multi-layer; the top paddle with pull-up type is multi-layer or 1 layer.

[0023] Working principle of the present invention:

[0024] The bottom paddle is of circular arc surface downward pressure...

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PUM

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Abstract

The invention relates to a low energy consumption and high evenness combined impeller stirring device, a bottom impeller (3) uses a down pressing mode, and a top impeller (2) uses an up pulling mode. The advantages and effects of the low energy consumption and high evenness combined impeller stirring device are that: the bottom impeller uses in an arc surface down pressing mode, the impeller rotates to drive downward movement of slurry, scouring force to slurry on the bottom edge and angle and other parts of a tank is very strong, the precipitation can be effectively eliminated; the top impeller adopts an arc surface inclined up pulling mode, the suspension effect of solid particles in the slurry is obvious, and the ideal mixing evenness can be achieved. Due to the adoption of the new arc surface stirring impeller, by the combination of stirring of the down pressing mode and the up pulling mode, high mixing evenness can be achieved, at the same time, energy consumption is reduced by 50% compared with that of a hinge blade, and the low energy consumption and high evenness combined impeller stirring device also has the characteristics of low shear, low weight and inhibition of scar formation of accumulated materials on the bottom of the tank.

Description

technical field [0001] The invention relates to a combined paddle stirring device with low energy consumption and high uniformity, which is suitable for mixing and stirring slurry in various stirring tanks in the alumina industry, especially for stirring tanks with relatively large length and diameter, which can achieve good mixing uniformity and low energy consumption. At the same time, it also has the characteristics of low shear, low weight, and inhibits the accumulation of material at the bottom of the tank. Background technique [0002] At this stage, in the alumina industry and other hydrometallurgical production processes, the stirring tank for solid-liquid mixing often uses a folded paddle stirring device. [0003] Traditional multi-layer paddle configuration: single-layer or multi-layer paddles all adopt the down-pressing type, that is, when the paddles of each layer drive the liquid flow to make a rotary motion, the liquid flow is pushed downward by the paddle. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F7/18
Inventor 张超李志国
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE