External circulation strong mixing coated asphalt continuous production device and method

The invention belongs to the field of petrochemical high-end carbon materials, and relates to an external circulation strong mixing coated asphalt continuous production device and method. The device comprises two coated asphalt reactors which are connected in parallel, a coated asphalt circulating pump, a gas-liquid micro mixer, a four-way valve, a raw material feeding pipeline, an air feeding pipeline, a superheated steam feeding pipeline, a bypass pipeline and a coated asphalt discharging pipeline, wherein each coated asphalt reactor is provided with an oil collecting tank, an oil collecting tank outlet, an oil-gas outlet pipeline, a stripping steam pipeline and a feeding hole; inlets of the four-way valves are connected with a raw material feeding pipeline, and outlets of the two four-way valves are connected with the two bottom feeding ports respectively; an outlet of the oil collecting tank is connected with a circulating pump extraction pipeline and then is sequentially connected with a coated asphalt c