Ultrasonic mixing device for preparation of sulfonated graphene

Abstract

The invention relates to the technical field of preparation of sulfonated graphene, in particular to an ultrasonic mixing device for preparation of sulfonated graphene. The device comprises a materialbarrel, ultrasonic generators and a stirring roller. The material barrel has a cylindrical structure. Four mounting grooves are disposed on the inner wall of the material barrel, four ultrasonic generators are inlaid in the mounting grooves respectively, the surfaces of other areas except the mounting grooves on the inner wall of the material barrel are all continuous fold surfaces, the stirringroller is arranged in the material barrel, the bottom end of the stirring roller is fixedly connected to a sun wheel, the outer surface of the sun wheel are in rotating connection with four planetarywheels, a gear ring is sleeved outside the planetary wheels, and is fixed to the material barrel, the planetary wheels are sleeved at the tops of stirring paddles, and the outer surfaces of the stirring paddles are continuous fold surfaces. According to the invention, ultrasonic wave can be reflected and folded repeatedly in the material barrel, and the mixing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sulfonated graphene preparation, in particular to an ultrasonic mixing device for the preparation of sulfonated graphene. Background technique [0002] Patent No. CN 103359782 A mentions a preparation method of sulfonated graphene. The preparation process is to mix ammonium sulfate and graphene oxide in a mass ratio of 1:1-20 and dissolve them in deionized water, and ultrasonically disperse them for 10 ~60min, disperse the mixture evenly in water, and then use rotary evaporation to remove water, freeze-dry the above-mentioned mixture until it is completely dry, then heat it to 100~300℃ under argon or nitrogen atmosphere and keep it warm for 30~60min , to obtain black fluffy sulfonated graphene powder. In the preparation process, it is necessary to use an ultrasonic mixer to uniformly mix ammonium sulfate and graphene oxide into deionized water. Patent No. CN 102294192 A mentions an ultrasonic mixing devic...

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Problems solved by technology

[0002] Patent No. CN 103359782 A mentions a preparation method of sulfonated graphene. The preparation process is to mix ammonium sulfate and graphene oxide in a mass ratio of 1:1-20 and dissolve them in deionized water, and ultrasonically disperse them for 10 ~60min, disperse the mixture evenly in water, and then use rotary evaporation to remove water, freeze-dry the above-mentioned mixture until it is completely dry, then heat it to 100~300℃ under argon or nitrogen atmosphere and keep it warm for 30~60min , to obtain black fluffy sulfonated graphene powder. In the preparation process, it is necessary to use an ultrasonic mixer to uniformly mix ammonium sulfate and graphene oxide into deionized water. Patent No. CN 102294192 A mentions an ultrasonic mixing device. It includes a material tank, a pump and an ultrasonic generator. The mixed liquid in the material tank is pumped out through the pump, and then sent back to the material tank after passing through the ultrasonic generator. There is also a stirring rod or a dispersing paddle in the material tank to stir the mixed liquid. , in this device, the ultrasonic generator can only mix part of the liquid when the mixed liquid passes through, but cannot directly mix the mixed liquid inside the barrel, and the efficiency is low. In order to improve the efficiency, we propose a An ultrasonic mixing device for the preparation of sulfonated graphene

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