A granularity analysis test device simulating tailing dam hydraulic sorting and an application method thereof

Abstract

A particle size analysis test device for simulating tailings dam hydraulic separation, the stirring device includes a sealed mixing box with a lifting device at the bottom, a stirrer in the mixing box, the mixing box is connected with a pressure pump, and a sand bin is located at the upper part of the mixing box And the water tank, the mixing box is equipped with a sand concentration measuring instrument; the slurry delivery pipe in the slurry delivery adjustment device is fixed by a fixed bracket with adjustable height, and an electromagnetic flowmeter and a slurry discharge valve are installed on the slurry discharge pipe; the simulation box There is a slope adjustment board with hinges at the front to adjust the slope; the two side walls and the rear wall of the simulation box can be stretched out through the connected flexible material, and the top of the simulation box has a movable ultrasonic liquid level gauge, an automatic bed topography instrument and a high-speed camera. The device can adjust the slurry discharge speed and flow rate through the booster pump, and the rear wall and side walls of the simulation box can be extended, so that the simulated tailings sand accumulation state is realistic, and the analysis of the tailings sand deposition movement law is convenient and fast, and the test results are more accurate.

Description

technical field [0001] The invention relates to mine beneficiation, in particular to a particle size analysis test device for simulating tailings dam hydraulic separation and its application method. Background technique [0002] Upstream tailings dam construction is simple and economical, and is widely used in my country. Some basic technical parameters are often used in the design, construction and safety management of tailings dams, such as the height of the initial dam, the slope ratio of the accumulation dam, the length and slope of the sedimentary beach, the distribution of sedimentary tailings particles along the beach surface, etc. These technical parameters are one of the important bases for analyzing the anti-flood ability of tailings ponds and the stability of tailings dams. [0003] The accumulation process of the tailings dam usually means that the tailings sand is discharged into the tailings pond in the form of slurry and accumulated and stored in the tailings...

AI Technical Summary

Problems solved by technology

[0007] 1. The device only relies on the gravity discharge of the tailings slurry in the mixing box, and cannot be adjusted according to the simulated slurry discharge speed and flow rate of different tailings, which affects the authenticity of the simulated tailings sand accumulation state

[0008] 2. The rear wall and side walls of the simulation box of the device are in a fixed vertical state, which does not match the shape of the simulated tailings pond, and also affects the authenticity of the simulated tailings sand accumulation state

[0009] 3. The simulation box of the device is only equipped with a laser particle size measuring instrument, which can only measure and analyze the particle size distribution of the tailings profile, but cannot measure and analyze the water level inside the tailings sand on the tailings dam sedimentary beach, the elevation distribution of the tailings sand at different positions and The geomorphic characteristics of the sedimentary beach cannot directly display the sedimentation process of the tailings sand in the simulation box

[0010] 4. The device is only equipped with a single slurry delivery pipe, which is fixed on the upper end of the telescopic rod through a fixed pipe clamp. During the test operation, the joint between the slurry delivery pipe and the telescopic rod has a large deformation, which not only affects the normal discharge of slurry, but also It is easy to cause blockage of the slurry delivery pipe, which affects the continuous operation of the test and the authenticity of the simulated tailings sand accumulation state

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