Dispersion equipment for nano-alloy material

Abstract

The invention discloses dispersion equipment for a nano-alloy material. The dispersion equipment comprises a rack and further comprises a dispersion tank arranged on a machine table, at least one multi-frequency ultrasonic transducer is arranged at the bottom and / or on the side face of the dispersion tank, the multi-frequency ultrasonic transducer is electrically connected with an ultrasonic generator, and the multi-frequency ultrasonic transducer can emit ultrasonic waves of 40-120KHz. According to the invention, because the multi-frequency ultrasonic transducer is adopted, the capability ofadjusting the transmitting frequency within the range of 40KHz to 120KHz is realized; and in the working process, the transmitting frequency and the adjustment time interval are set through the ultrasonic generator, the possibility of standing wave phenomena can be effectively eliminated through ultrasonic waves with different frequencies, and the de-agglomeration efficiency and quality of a nano-alloy material soft aggregate are improved.

Description

technical field [0001] The invention relates to a preparation device for a nano alloy material, in particular to a dispersion device for a nano alloy material. Background technique [0002] The agglomeration of nanomaterial powders is generated by the interaction between particles, which are generally divided into two types: soft agglomeration and hard agglomeration of powder. The soft agglomeration of powder is mainly due to the van der Waals force and Coulomb force between particles. This agglomeration can be eliminated by means of solvent dispersion or slight mechanical force (ultrasonication, grinding). Therefore, ultrasonic dispersing equipment for nanomaterials has appeared on the market, but the ultrasonic transducers used in existing ultrasonic dispersing equipment can only emit sound waves of a fixed frequency, which also leads to problems. Characteristics, most of the emitted ultrasonic waves will be reflected back into the dispersion liquid by the liquid surface...

AI Technical Summary

Problems solved by technology

Therefore, ultrasonic dispersing equipment for nanomaterials has appeared on the market, but the ultrasonic transducers used in existing ultrasonic dispersing equipment can only emit sound waves of a fixed frequency, which also leads to problems. Characteristics, most of the emitted ultrasonic waves will be reflected back into the dispersion liquid by the liquid surface or the bottom surface of the dispersion container and its side walls, and the two ultrasonic waves with the same frequency that are vertically upward and downward or horizontally left and right meet, when the dense When the part and the sparse part are superimposed, they cancel each other out, producing standing waves and losing the ability to disperse

[0003] Standing wave refers to the wave formed by the superposition of two waves with the same frequency and opposite transmission directions. As an ultrasonic dispersion device, due to the fixed frequency of the ultrasonic waves emitted by it and the cavity structure of the dispersion tank, it is very easy to produce the above-mentioned Standing wave phenomenon, after the standing wave phenomenon occurs, nanomaterial particles will gather at the nodes. Due to the characteristics of standing waves, the material particles at the nodes cannot be effectively dispersed, which seriously affects the soft aggregates of nano-alloy materials. Deagglomeration process, resulting in unacceptable quality of dispersed nanomaterials

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