Double-layer perikinetic circulation mechanical flocculation enhancing device

Abstract

The invention discloses a double-layer perikinetic circulation mechanical flocculation enhancing device, which comprises a motor reducer, a coupling, a transmission revolving shaft, stirring paddles, guide cylinders and fixed supports; the stirring paddles comprise an upper layer stirring paddle and a lower stirring paddle; the upper layer stirring paddle and the lower stirring paddle are installed on the transmission revolving shaft in different directions; the cylinder wall of each guide cylinder is a curved surface; the guide cylinders comprise an upper layer guide cylinder and a lower layer guide cylinder, and the upper layer guide cylinder is correspondingly arranged at the outer side of the upper layer stirring paddle; the lower layer guide cylinder is correspondingly arranged at the outer side of the lower layer stirring paddle. According to the double-layer perikinetic circulation mechanical flocculation enhancing device disclosed by the invention, by adopting the double layers of perikinetic plug-flow stirring paddles and combining with the double layers of guide cylinders with the curved surfaces, upper and lower double-layer perikinetic circulation is formed; the effective volume of a flocculation structure is fully utilized, so that the energy conversion efficiency of a mechanical flocculation process is increased, and the energy consumption is lowered; meanwhile, the flocculation effect is improved, the short flow phenomenon is reduced, and the effluent quality is improved.

Description

technical field [0001] The invention relates to a double-layer anisotropic circulation mechanical flocculation synergistic device used in the flocculation process of water treatment. Background technique [0002] The optimization of water treatment flocculation process is generally aimed at the same direction of flocculation. Homotropic flocculation mainly refers to the aggregation or breaking of flocs caused by external force, which is called G value, that is, velocity gradient. When designing flocculation structures in my country at this stage, parameters such as head loss in the flocculation zone or mechanical power (G value) are usually used for design. However, the G value is an average value, ignoring the differential distribution of G values ​​in the flocculation area, which is particularly prominent in mechanical flocculation tanks. [0003] The mechanical flocculation tank is a structure that drives the stirring paddle through the driving device to stir the liquid...

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Problems solved by technology

[0005] The present invention aims to solve the problems that the mechanical flocculation efficiency of the flocculation device in the prior art is low, short-flow phenomenon is easy to occur, and the effluent water quality is poor.

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