Device and method for measuring dynamic settling velocity of high-concentration slurry particles

Abstract

The invention discloses a device and method for measuring the dynamic settling velocity of high-concentration slurry particles, the device comprises a rotating mechanism, an inner cylinder, an outer cylinder, a conductivity detection mechanism and a data collector, the inner cylinder is sleeved in the outer cylinder, two ends of the inner cylinder are rotatably arranged on the end face of the outer cylinder, the inner cylinder is connected with the rotating mechanism, the rotating mechanism is arranged on the outer cylinder, and the conductivity detection mechanism is connected with the data collector. The outer cylinder is provided with at least two conductivity detection mechanisms in the vertical direction, and the conductivity detection mechanisms are in communication connection with the data collector. The shear settlement test device is designed on the basis of the principle related to the slurry concentration and the conductivity characteristic of the slurry, research on the dynamic settlement characteristic of non-Newtonian slurry particles is achieved, then determination of parameters such as the critical flow speed and the stacking gradient is achieved, and a reference basis is provided for design of a tailing high-concentration discharge project.

Description

technical field [0001] The invention relates to the technical field of sedimentation velocity measurement, in particular to a measurement device and measurement method for the dynamic sedimentation velocity of high-concentration slurry particles. Background technique [0002] The sedimentation velocity of particles is an important content in the study of slurry flow performance, and it is of great significance for the determination of engineering design parameters such as critical flow velocity and sedimentation law. For low-concentration slurry, a graduated cylinder test is generally carried out to measure the settling velocity of the particle group. However, for high-concentration slurry, the interface between the mud layer is not obvious, and it is difficult to observe the sedimentation law of the particle group through a simple graduated cylinder test, and it is necessary to obtain it indirectly through some non-destructive detection methods. On the other hand, studies ...

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Problems solved by technology

Since the high-concentration tailings disposal process can effectively reduce the risk of dam failure, improve the utilization rate of return water, and reduce the impact on the surrounding ecological environment, however, the design of high-concentration tailings discharge projects is progressing slowly, and there is an urgent need for a high-concentration slurry particle dynamic Settling velocity measurement device to provide design reference basis

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