The invention discloses a magnetically-driven
grating ring micro-channel liquid mixing device and a method thereof, and relates to a liquid mixing device and a method thereof. Modularized magnetic force driving is adopted, premixed liquid is pre-dispersed and sheared and crushed through a
grating structure, a mixing channel adopts a three-stage Archimedes spiral micro-channel design, a liquid
inlet channel layer is provided with rectangular-section micro-channels which are annularly and uniformly arranged, a secondary mixing channel layer adopts a spiral channel from the circle center to the periphery, and the spiral channel is formed in the middle of the spiral channel. The
tertiary mixing channel layer is a spiral channel from the circumference to the circle center, and efficient
mass transfer of two liquids is achieved through the synergistic effect of vortex and
shear force induced by a spiral divergent structure. The device has the advantages of modularization, easiness in disassembly and replacement and
active mixing, the dispersion uniformity and mixing efficiency of materials in the micro-channel are remarkably improved through the synergistic effect of the magnetically-driven multi-stage mixing units, and the device is suitable for the material mixing processes of strong heat release, rapid reaction and the like in the technical fields of
fine chemical engineering, biological
medicine and the like.