Ocean fracturing fluid continuous mixing device

The utility model relates to an ocean fracturing fluid continuous mixing device which is characterized by comprising a coaxial two-way stirring device, a first filling pump, a second filling pump, multistage spiral grinding pumps, a multi-head air pressure jet mixing device, a measurement device, a back filing pipeline and an electromagnetic valve, wherein the coaxial two-way stirring device shears and mixes a thickening agent and a fracturing fluid, a mixed fluid of the thickening agent and the fracturing fluid is obtained and pumped into the spiral grinding pumps through the first filling pump and enters the multi-head air pressure jet mixing device after ground by the spiral grinding pumps, and the mixed fluid of the thickening agent and the fracturing fluid and ocean water are subjected to jet mixing in the multi-head air pressure jet mixing device; according to displacement data measured by the measurement device on prepared fracturing fluid and demand for the fracturing fluid during ocean operation, part of the prepared fracturing fluid enters the second filling pump through the measurement device and then is pumped into a shaft; and the other part of prepared fracturing liquid is returned to the coaxial two-way stirring device through the back filling pipeline by controlling the electromagnetic valve on the back filling pipeline.