▎ 摘　　要

NOVELTY - The utility model claims a pre-mixing kettle for preparing graphene slurry, comprising a pre-mixing kettle main body; the bottom of the pre-mixing kettle main body is provided with a kettle bottom; the kettle bottom is provided with a graphene powder feeding opening; the graphene powder feeding opening is provided with a first pipe section at the outer side of the kettle bottom; the first pipe section is provided with a one-way valve; the one-way valve is configured to only allow the graphene powder to enter the inner side from the outer side of the pre-mixing kettle main body. The utility model can make the graphene powder directly soaked into the solution, which effectively avoids the material waste caused by dust floating, the proportion is not accurate and the absorption tower filter screen is easy to be blocked, which improves the production efficiency