Solid-liquid mixing device

Abstract

The invention relates to a solid-liquid mixing device. The solid-liquid mixing device comprises a mixing cavity, a liquid dispersing disc, a particle dispersing disc and a stirring mechanism, whereina liquid inlet is formed in the top wall of the mixing cavity; a discharging opening is formed in the bottom wall of the mixing cavity; a particle inlet is formed in the side wall of the mixing cavity; the liquid dispersing disc is located above the particle inlet; the particle dispersing disc is located under the particle inlet; the stirring mechanism comprises a rotating shaft, a stirring shaftand a plurality of stirring blades; the stirring blades comprise upper stirring blades and lower stirring blades; the lengths of the upper stirring blades are successively increased and the lengths ofthe lower stirring blades are successively reduced in a direction from the rotating shaft to the side wall. The solid-liquid mixing device is capable of fully wetting, so that the situation that thedust flies is avoided; the contact area between solid particles and the liquid is increased; the solid and the liquid are premixed, so that the dispersion efficiency is improved, and the phenomenon that large particle clusters are difficult to disperse or removed is avoided; the stirring blades with different lengths are used for fully stirring the mixture, so that the dispersion efficiency and the dispersion effect are improved.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a solid-liquid mixing device. Background technique [0002] In the production process of slurry products such as water-based color paste, carbon nanotube slurry, etc., it is often necessary to fully mix solid particles with liquid and carry out stable dispersion. The mixing and stable dispersion of solid particles and liquids is divided into three steps: wetting, dispersion and stabilization. Among them, wetting means that liquid replaces the air wrapped in the interface of solid particles to form a solid-liquid interface; dispersion means that solid particles form a uniform phase with liquid under the action of mechanical force; stability means that solid particles exist stably and effectively in a liquid medium. prevent re-aggregation. Among them, the solid-liquid mixing device has a significant impact on the wetting and dispersion of solid particles, and the effec...

AI Technical Summary

Problems solved by technology

However, in the above method, there will be a small amount of solid particles floating on the surface of the liquid and it is difficult to mix with the liquid; a large number of solid particles enter the liquid, and some solid particles are deposited at the bottom of the mixing tank and cannot be fully mixed with the liquid.

In addition, some solid particle groups are only dispersed outside, and the liquid cannot penetrate into the interior of the solid particle group, resulting in a decrease in solid-liquid mixing efficiency, increased mixing time, and unsatisfactory mixing effects

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