Novel high-efficiency and energy-saving rigid and flexible combined stirring impeller

A high-efficiency energy-saving, stirring paddle technology, applied to mixers with rotating stirring devices, mixers, dissolving, etc., can solve the problem of "dead zone" of stirring, to improve the degree of turbulence, increase energy utilization, and improve mixing efficiency effect

Active Publication Date: 2017-06-13
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People often adopt the method of increasing the rotating speed to improve the mixing uniformity of the material, but excessiv

Method used

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  • Novel high-efficiency and energy-saving rigid and flexible combined stirring impeller
  • Novel high-efficiency and energy-saving rigid and flexible combined stirring impeller
  • Novel high-efficiency and energy-saving rigid and flexible combined stirring impeller

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A new type of high-efficiency and energy-saving rigid-flexible mixing paddle is characterized in that it includes a stirring shaft 2, a number of rigid paddles I41, rigid paddles II42, springs I6, springs II7 and perforated flexible sheets 8.

[0025] There are two nodes on the stirring shaft 2 . One of the nodes is connected with several rigid stirring blades I41, and these rigid stirring blades I41 form a rigid stirring blade I. Another node connects several rigid stirring blades II 42, and these rigid stirring blades II 42 form a rigid stirring blade II.

[0026] All the rigid stirring blades I41 are radially distributed around the stirring shaft 2 . The end of each rigid stirring paddle I41 is processed with a through hole, and a mounting ring I601 is passed through the through hole. A spring I6 is hung on each mounting ring I601, the spring I6 is a coil spring, and the metal rod at one end of the coil spring is bent into a hook shape (or ring shape); the spring I...

Embodiment 2

[0039] The main structure of this embodiment is the same as embodiment 1, further:

[0040] The diameters of the rigid stirring paddle I41 and the rigid stirring paddle II42 are equal. The paddle of rigid paddle I41 is the same size as the paddle of rigid paddle II42.

[0041] The width of the perforated flexible sheet 8 is 1 / 40-1 / 10 of the diameter D of the rigid paddle II42. It has been found through research that when the width of the perforated flexible sheet 8 is too narrow, it is beneficial for the perforated flexible sheet 8 to twist or shake, but the ability to transfer energy is poor; when the width of the perforated flexible sheet 8 is too wide, it is not conducive to Twisting or shaking, but the ability to transmit energy is strong. The width of the perforated flexible sheet 8 is d, and when d is 1 / 40-1 / 10 of D, the system can obtain a better mixing effect.

[0042] Further speaking, the distance between the lower edge of the blade of the rigid paddle I41 and the...

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Abstract

The invention provides a novel high-efficiency and energy-saving rigid and flexible combined stirring impeller. The novel high-efficiency and energy-saving rigid and flexible combined stirring impeller is characterized by comprising a stirring shaft, a rigid stirring impeller I, a rigid stirring impeller II, springs andflexible holed pieces, wherein two nodes are arranged on the stirring shaft, one node is connected with the rigid stirring impeller I, and the other node is connected with the rigid stirring impeller II; the flexible holed pieces are connected between the rigid stirring impeller I and the rigid stirring impeller II, and two ends of eachflexible holed piece in the length direction are in transitional connection with the rigid stirring impeller I and the rigid stirring impeller II through the springs. The technical effect of the novel high-efficiency and energy-saving rigid and flexible combined stirring impeller is undoubted, during rotation of the impeller, energy consumption of blades is reduced, the flexible holed pieces can perform multi-body motion and can produce much high-speed jet during motion, velocity gradient of fluids is increased, turbulence degree of the fluids is increased, energy using ratio of the blades is increased, fluid mixing efficiency is increased, and cost of a stirring device can be saved.

Description

technical field [0001] The invention relates to a fluid mixing device in the production processes of chemical industry, petrochemical industry, light industry, medicine, metallurgy, water treatment, etc., in particular to a new type of high-efficiency and energy-saving rigid-flexible combined stirring paddle. Background technique [0002] Mechanically stirred reactors are widely used in chemical, petrochemical, light industry, pharmaceutical, metallurgy, water treatment and other industries. quality and increase production efficiency. As one of the important core components of the stirred reactor, the stirring paddle can give the fluid the required appropriate energy, thereby promoting the evolution, formation, displacement of the multi-scale structure of the flow field and the transfer of energy and matter between the multi-scale flow field structures. However, less than 5% of the total mechanical input of the stirred reactor to the flow field through the stirring paddle i...

Claims

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Application Information

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IPC IPC(8): B01F7/16
CPCB01F27/0542B01F27/074B01F27/119B01F27/118B01F27/192B01F27/80
Inventor 刘作华谷德银陶长元刘仁龙谢昭明范兴杜军邱发成李兵许传林许恢琴杨义张柱刘敏杨勇刘培乔周小霞左赵宏唐金晶孔令峰湛敏罗自萍张红晶
Owner CHONGQING UNIV
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