Device and method for measuring ullage and material level of mine deep-hole chute

Abstract

The invention discloses a device and a method for measuring the ullage and the material level of a mine deep-hole chute and aims at solving the technical problem of accurate online continuous material level measurement when the mine deep-hole chute is blocked by high-concentration dust. The device for measuring the ullage and the material level of the mine deep-hole chute comprises a chute measuring trolley, a laser level meter, an electric rocker arm, a digital display instrument, a PLC and a video sighting system, wherein the electric rocker arm is fixedly connected to the chute measuring trolley; the video sighting system comprises a camera and a liquid crystal monitor; the camera is located on the front end of the electric rocker arm, while the liquid monitor is located on the rear end of the electric rocker arm; the camera is connected with the liquid crystal monitor by use of a transmission cable; the laser level meter is connected with the input end of the PLC; the output end of the PLC is connected with the input end of the digital display instrument. The device for measuring the ullage and the material level of the mine deep-hole chute is integrated with the high-accuracy laser level meter and the auxiliary devices, and is used for measuring by use of a soft measurement method, and the overall measurement accuracy can be + / -1%FS.

Description

technical field [0001] The invention belongs to the field of automatic instrument measurement, in particular to the measurement of the empty height and material level of a mine deep hole chute. Background technique [0002] The chute is the main channel for transporting ore in the mining process, which plays a decisive role in improving production efficiency and saving mining costs. [0003] The difficulty of measuring the empty height and material level of deep-hole chutes in mines lies in: the measurement distance is long, the depth of deep-hole chutes is generally about 200-300m, and common industrial level gauges such as radar, ultrasonic, and heavy hammer are difficult to meet their measurement conditions; The dust concentration at the bottom of the chute or when the wellhead goes down is high, which affects the measurement accuracy; the diameter of the chute reaches 10-20m, and it is difficult to install and overhaul the measuring instruments, making it difficult to en...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a device that can continuously measure the empty height and material level of the deep-hole chute in the open-pit mine operation, so as to solve the problem that the online continuous material level cannot be accurately measured when the deep-hole chute is blocked by high-concentration dust. technical problem

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