Potassium-rich slate density measuring device and use method thereof

The invention relates to the technical field of density measurement, and discloses a potassium-rich slate density measurement device and a use method thereof, the potassium-rich slate density measurement device comprises a base, a water storage mechanism and a material clamping mechanism; the water storage mechanism comprises a weighing table arranged in the middle of the base, a water storage tank is arranged on the weighing table, a drainage pipe is arranged on the side wall of the side, away from the base, of the water storage tank, and a measuring cylinder matched with the drainage pipe is arranged on the side edge of the base; the material clamping mechanism comprises a hanging frame arranged at the end of the base, fixing plates are arranged on the two sides of the hanging frame and rotationally connected with a main shaft, winding wheels are arranged at the end of the main shaft, the winding wheels on the two sides wind the two ends of a hanging rope respectively, and a discharging table is arranged in