High-safety centrifugal washing treatment device for producing graphene

Abstract

The invention relates to a high-safety centrifugal washing treatment device for producing graphene, the high-safety centrifugal washing treatment device for producing the graphene comprises a base, acontroller, a closed chamber, a dilution mechanism, a compression mechanism, a sealing cover, a lifting mechanism, a centrifugal mechanism and a plurality of supporting legs, the lifting mechanism comprises a driving assembly, a telescopic frame, a lifting plate and two connecting rods; the centrifugal mechanism comprises a first motor, a turntable, a beaker and a plurality of inserting rods; thecompression mechanism comprises a reciprocating assembly, a sealing block, a compression pipe, an air inlet pipe, an air outlet pipe, a drain pipe and filter cloth. The high-safety centrifugal washingtreatment device can drive the centrifugal mechanism to enter a closed sealing chamber through the lifting mechanism, so that a high-temperature solution is prevented from splashing on an operator and scalding the operator during centrifugal washing; moreover, compressed air is injected into the sealing chamber through the compression mechanism, so that a diluent is extruded by the air and discharged out from the drain pipe, contact between the operator and the reaction liquid is avoided, and water washing safety is ensured, so that practicability of the device is improved.

Description

technical field [0001] The invention relates to the field of graphene production equipment, in particular to a high-safety centrifugal washing treatment device for producing graphene. Background technique [0002] Graphene is one of the hottest two-dimensional materials currently being studied, and its preparation technology is very mature. At present, there are three main methods to obtain graphene: mechanical exfoliation method, chemical vapor deposition method and redox method. Among them, the oxidation-reduction method refers to first oxidizing natural graphite by using chemical reagents such as sulfuric acid and nitric acid and oxidants such as potassium permanganate and hydrogen peroxide, increasing the distance between graphite layers, and inserting oxides between graphite layers. Obtain graphite oxide (GraphiteOxide). Then the reactant is washed with water, and the washed solid is dried at low temperature to obtain graphite oxide powder. Graphene oxide is prepared ...

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Problems solved by technology

[0003] In the production process of graphene, the graphene oxide product obtained in the early stage is too sticky, so it needs to be divided into more beakers, and slowly diluted with water for washing, but because graphene oxide contains unreacted concentrated sulfuric acid, In the process of pouring out of the beaker, the operator is easily corroded by concentrated sulfuric acid due to careless operation. Not only that, after pouring into the beaker and adding water, the concentrated sulfuric acid is easy to meet with water. Whether a large amount of heat causes the temperature of the solution in the beaker to rise sharply High, when these reaction solutions are centrifuged, these high-temperature solutions are easy to splash out of the beaker and burn the operator, which makes the existing graphene production dangerous.

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