A Microstructure Mixer for High Viscous Fluid Mixing

Abstract

The invention belongs to the technical field of chemistry and chemical engineering, and discloses a microstructure mixer for mixing high-viscosity fluids. It includes a micro-dispersion structural part, a mixing channel, a main distribution chamber, a side distribution chamber, a mixed product collection chamber, a side feed port, a main feed port and an outlet, wherein: (1) the micro-dispersion structural part is arranged in the mixing channel The upper and lower sides are plate-type mechanical parts containing longitudinal micro-grooves, the micro-grooves in the upper micro-dispersion part and the micro-grooves in the lower micro-dispersion part are arranged in parallel and alternately, and do not overlap in the vertical direction; (2) the micro-grooves The upper and lower sides of the dispersion structure part are respectively connected to the fluid side distribution chamber, and the side distribution chamber is connected to the side feed port; (3) the main feed port, the main distribution chamber, the mixing channel, the mixed product collection chamber and the outlet are connected in series. The micro mixer is suitable for liquid-liquid mixing process with viscosity <500mPa·s.

Description

technical field [0001] The invention belongs to the technical field of chemistry and chemical engineering, and in particular relates to a microstructure mixer for mixing high-viscosity fluids. Background technique [0002] Mixing process is the basic operation process of chemical industry, which is common in chemical process. In continuous reaction and separation systems, passive mixing equipment has the characteristics of simple operation and low energy consumption, and is widely used. However, the internal mixing scale of traditional static mixing devices is generally at the millimeter level, so the mixing efficiency is often relatively low. In recent years, the advent of microstructured mixers (micromixers) has enabled efficient static mixing processes. The micro-structure mixer mainly adopts the basic principle of micro-scale mixing. It disperses or divides two fluids into micron-scale fluid micro-clusters through a micro-dispersion structure, and then completes the mi...

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Problems solved by technology

[0003] At present, more mature micro-mixers include interdigitated micro-mixers, Corning heart-shaped mixers, segmentation-polymerization micro-mixers, micro-mesh dispersion mixers, etc. Although these micro-mixers have been realized in many applications High-efficiency mixing of liquid-liquid and gas-liquid, but it is difficult to achieve good results for high-viscosity fluids (>50mPas). The main reason is that the fluids in these micro-mixers need to pass through micron-scale micropores or microchannels. The high flow resistance in these channels limits the mixing effect

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