A micro-nano particle separation system based on interface effect

Abstract

The invention relates to a micro-nano particle separating system based on an interfacial effect. The system comprises a control unit, a power unit, a separating unit and a collecting unit, wherein the control unit controls a non-Newtonian fluid and conveys a Newtonian fluid containing the micro-nano particles; the power unit is controlled by the control unit to provide power to the non-Newtonian fluid and the Newtonian fluid; the separating unit comprises a separating channel which communicates with the power unit through a pipeline, and the non-Newtonian fluid and the Newtonian fluid containing the micro-nano particles flow through the separating channel, wherein at least one contact interface which separates the micro-nano particles as a result of inertia force and elastic force at the same time; and the collecting unit is arranged on the tail end of the separating unit to collect the separated micro-nano particles which are different in diameters. The micro-nano particle separating system based on the interfacial effect provided by the invention has a higher resolution due to the interfacial effect and can separate particles which are close in size.

Description

technical field [0001] The invention relates to the technical field of micro-nano particle separation, in particular to a micro-nano particle separation system based on the interface effect between Newtonian fluid and non-Newtonian fluid. Background technique [0002] With the development of micro-nano technology and the wide application of micro-nano materials in many disciplines, traditional separation principles and equipment are subject to various limitations in the separation of micro-nano particles, and the separation effect is not ideal. Looking for a micro-nano Particle efficient separation technology is particularly critical. Commonly used micro-nanoparticle separation methods are mainly divided into two categories: contact and non-contact; contact micro-nanoparticle separation has discontinuity, and other materials need to be added during the operation; non-contact micro-nanoparticle separation does not need to add other materials. materials, avoiding pollution an...

AI Technical Summary

Problems solved by technology

[0006] Finally, due to the use of a single non-Newtonian fluid to separate particles, they are separated at the end of the separation channel through a bifurcated outlet, and when the same non-Newtonian fluid flows through different bifurcated outlets, the same force in the liquid often causes flow disorder , particles of different diameters are mixed, and the effect of separating particles is reduced

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