Real-time testing device and method for migration and settlement positions and speeds of pulverized coal in various flow states

The invention belongs to the technical field of coal mine fracture simulation, and particularly relates to a real-time testing device and method for the migration and settlement position and speed of pulverized coal in multiple flow regimes, the real-time testing device comprises a mixed injection system, a fracture control system, a pulverized coal migration monitoring system and a recovery system, the fracture control system comprises a cavity, and a fracture pipeline is arranged in the center of the cavity; the cavity is divided into a plurality of cabins by vertically-arranged partition plates, each cabin is divided into an upper cabin and a lower cabin by a crack pipeline, a piston pump, a piston and a stop valve are arranged in each cabin, the end of the piston in the upper cabin and the end of the piston in the lower cabin are located on the outer wall of the crack pipeline, and the crack pipeline is longer than the cavity. According to the device and the method, the settlement position ...