Microbubble intervention type waste liquid recovery equipment for graphene production

Abstract

The invention discloses micro-bubble intervention type waste liquid recovery equipment for graphene production. The micro-bubble intervention type waste liquid recovery equipment comprises a micro-bubble intervention type anti-blocking filtering assembly, a top sinking type all-dimensional transferring assembly and a two-way vortex circulation drying and collecting assembly. The invention belongs to the technical field of graphene production waste liquid recovery, after washing waste liquid containing graphite oxide enters a filtering barrel, a large amount of graphite oxide can be precipitated on a filtering plate, and microbubble mixed liquid flowing out of a vertical liquid outlet pipe can carry the graphite oxide to the position above the liquid level, so that the situation that the filtering plate is blocked by a large amount of graphite oxide can be avoided; after the graphite oxide is adsorbed and wrapped above the liquid level by the microbubbles, waste liquid is discharged through the waste liquid discharge pipe, and the uppermost graphite oxide can fall onto the filter plate again, so that not only is the graphite oxide quickly filtered, but also the filter plate can be prevented from being blocked, and the filter effect is improved; and the microbubbles as the intermediary do not generate any chemical reaction after being contacted with the graphite oxide, so that the properties of the graphite oxide are not damaged.

Description

technical field [0001] The invention belongs to the technical field of graphene production waste liquid recovery, and specifically refers to a microbubble intervention type graphene production waste liquid recovery device. Background technique [0002] To prepare graphene by redox method, it is necessary to oxidize natural graphite by an oxidant to obtain graphite oxide, and then wash and dry the reactant to obtain graphite oxide powder; Graphene oxide is prepared; finally, graphene oxide is reduced by chemical method to obtain graphene. In the process of washing graphite oxide, the washing liquid will take away a large amount of graphite oxide. Generally, the waste liquid after washing is only simply collected and discharged after simple harmless treatment, which not only causes a lot of waste of resources , and the residual graphite oxide in the waste liquid will also pollute the environment, so a waste liquid recycling equipment for graphene production is urgently needed...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a kind of waste liquid recovery

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