The invention relates to the technical field of
tailings treatment, and discloses a
tailings pretreatment device for mine filling and a treatment method thereof.The
tailings pretreatment device comprises a bottom plate, and a stirring
assembly and a mounting frame are arranged on the two sides of the top of the bottom plate correspondingly; the stirring
assembly comprises a
mixing tank for storing tailings, a stirring
paddle for stirring and a speed regulating motor for driving the stirring
paddle to rotate; the device further comprises a gas-
liquid jet flow tailing dynamic suspension mechanism. An
air compressor operates to distribute high-pressure air to a two-fluid mixing spray head through a connecting
pipe and an annular air conveying
pipe, the high-pressure air is sprayed into a
mixing tank in an annular
jet flow mode, and tailings deposited at the bottom of the tank are subjected to dynamic suspension disturbance; and the liquid flows to the two-fluid mixing spray head through the transfer box, the one-way valve
pipe and the liquid conveying pipe in sequence and is mixed with high-pressure gas to form atomized liquid drops, the atomized liquid drops penetrate through gaps of tailings, and the problems that traditional sprayed chemicals are not uniform and the bottom is hardened are solved.