Basic principles of ultrasonic graphene production equipment:
The application of ultrasonic equipment is mainly in the solvothermal intercalation method and oxidation-reduction method. These two methods are relatively simple to operate, and the cost is lower than other preparation methods. At present, they are the main production methods for large-scale preparation of nano graphene powder in China. Because of the cavitation effect of ultrasonic wave in the liquid, the formation of micro jet, vibration and other physical phenomena, micro, in the liquid plays a high-speed mixing, crushing, separation, dispersion of suspended particles. In short, ultrasonic can accelerate and catalyze the reaction in the solution of graphene preparation.
In the solvent hot intercalation method, graphite powder and intercalator are mixed evenly in organic solvent in a certain proportion, then ultrasonic water bath is used for stripping for a certain time, and then centrifugation treatment is carried out. Graphene materials can be obtained after filtration by microporous filter membrane.
The method of oxidation reduction is to add the graphite oxide powder to the deionized water, and obtain the graphene oxide dispersion solution of graphene oxide in deionized water by ultrasonic vibration. In the dispersion, the graphene solution is obtained by adding caffeic acid powder in the dispersion, and the graphene solution is obtained after reduction reaction. It is also collected by filtration and collection through microporous filter membrane, and then dried in vacuum to obtain graphene.
Graphene ultrasonic dispersing machine components:
1. ultrasonic vibration source (driving power): convert 50-60Hz municipal power into high-power high frequency (15khz-100khz) power supply, and provide it to transducer.
2. transducer: converts high frequency electrical energy into mechanical vibration energy.
3. amplitude change rod: connect and fix the transducer and tool head, amplify the amplitude of the transducer and transmit it to the tool head.
4. tool head (guide rod): transmit mechanical energy and pressure to the work object, and also have the function of amplitude amplification
Parameters of industrial ultrasonic graphene production equipment:
Ultrasonic graphene production equipment components:
Ultrasonic experimental grade dispersion equipment: ultrasonic host + ultrasonic drive power supply + experimental fixture
Ultrasonic industrial grade dispersion equipment: 3000W ultrasonic vibration rod + ultrasonic numerical control drive power supply
Pilot test machine: ultrasonic industrial grade dispersion equipment + circulating reactor (including cooling jacket, feeding port, feed pump and base support)
Production line: ultrasonic industrial grade dispersion equipment + power supply placing cabinet + reaction kettle (including cooling jacket) + fixed support (including acoustic cotton) + flowmeter + frequency conversion pump
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