Device for rapidly preparing coal pen for bituminous coal Arnu dilatometer test

The utility model relates to the technical field of bituminous coal Arnu dilatometer test, in particular to a device for rapidly preparing a coal pen for bituminous coal Arnu dilatometer test, which is characterized by comprising a handheld bracket and a mold, the handheld bracket comprises a frame body, a funnel and an electric heating rod, the funnel is arranged in the frame body, the electric heating rod is arranged in an inner hole of the funnel, and the mold is arranged in the frame body. The top of the electric heating rod is connected with a power line, and an electric heating wire is embedded in the frame body. The mold comprises a coal pen core and an out-mold heating device surrounding the outer side of the coal pen core, a coal pen forming cavity is formed in the center of the coal pen core, and a heating body is embedded in the out-mold heating device. The utility model has the advantages that: 1) the temperature control precision of the wax liquid is higher, the liquidation of the wax liquid is m