Method and system for monitoring deslagging volume flow rate of belt of heading machine

Abstract

The invention discloses a heading machine belt deslagging volume flow monitoring method and system. The heading machine belt deslagging volume flow monitoring method comprises the steps that the zero position distance from a preset position above a belt to a plurality of first point positions on the upper surface of the belt in the belt no-load state is measured; measuring sinking distances of a plurality of second point positions on the belt in a belt load state relative to a no-load state; according to all the zero distance and the sinking distance, the zero calibration distance between the preset position and all the first point positions of the upper surface under the belt load state is calculated; the real-time distance between the preset position of the belt in the load state and a plurality of third point positions on the upper surface of the material above the belt is measured; calculating the area of a first-class sector formed by a preset position and the first point location, and calculating the area of a second-class sector formed by the preset position and all the third point locations; the sectional area of the material is calculated through the area of the first type of sectors and the area of the second type of sectors, and the real-time flow of the material is calculated through the sectional area and the belt speed.

Description

technical field [0001] The invention relates to the technical field of solid material flow measurement, in particular to a method and system for monitoring the volume flow rate of slag discharged from a roadheader belt. Background technique [0002] With the continuous improvement of intelligent requirements for the development of underground engineering equipment, it is necessary to detect the working status of the equipment during the construction of underground equipment, and the slag discharge volume flow rate of the belt conveyor is one of the important indicators reflecting the operating status information of the equipment during the shield construction process. First, a set of effective equipment is needed for detection. [0003] At present, during the construction process, the detection of the slag volume of the belt conveyor is based on the weighing type volume detection equipment and the laser scanner detection equipment. And the dispersion coefficient reverses th...

AI Technical Summary

Problems solved by technology

However, the specific gravity and dispersion coefficient of different excavation sections are quite different, coupled with the need for regular calibration and maintenance, it is prone to inaccurate measurement; the detection of laser scanner detection equipment uses laser distance sensors to detect preset positions on the conveyor belt The cross-sectional area of ​​the material is then calculated by multiplying the cross-sectional area of ​​the material by the current conveying element of the material to obtain the volume flow rate of the conveyed material

However, due to the large calculation error of the cross-sectional area of ​​the material, the measurement error of the volume flow rate of the material by the laser scanner detection equipment is still large

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