Coal rock identification device and method based on object heat capacity difference

Abstract

The invention discloses a coal rock identification device and method based on object heat capacity difference for coal seams of an underground coal mine, which is suitable for working face coal rock interface automatic identification under comprehensive mechanized mining working conditions. The coal rock identification device based on the object heat capacity difference includes a device body, aninfrared thermal imager, a sprayer, a water tank, and a device base. The basic method is that: according to the temperature difference presentation between the two materials of coal and rock after touching water due to different heat capacity ratio and the different temperature presentation, the sprayer of the device is used for mist spray and watering, the infrared thermal imager is used for detecting the area to be excavated, the detecting results are transmitted to a computer end through a wired cable or a wireless signal, and the infrared thermogram is analyzed and processed by the computer to distinguish the coal and rock, so as to obtain the specific demarcation of coal and rock of the working face coal rock of the underground coal mine, and realize the correction of the coal cutterwork route. The coal rock identification device based on the object heat capacity difference is easy to operate, has high accuracy of measurement results, and has wide practicality.

Description

technical field [0001] The invention relates to a coal-rock identification device and method based on differences in heat capacity of objects, which are suitable for automatic identification of coal-rock interfaces on working faces under comprehensive mechanized mining working conditions. Background technique [0002] In recent years, with the development of science and technology, unmanned automatic control technology has been successfully applied in coal mining face. Shearer is one of the main equipment for comprehensive mechanized coal mining in coal mining face. It is generally composed of cutting part, loading part, walking part (traction part), motor, operation control system and auxiliary devices. At present, the working mode of several coal mining machines is to cut according to the fixed mining route. Due to the complex distribution of underground coal seams, the mining machine may accidentally cut the surrounding rock, which will cause the wear of the mining machin...

AI Technical Summary

Problems solved by technology

For example, the recognition accuracy of the vibration monitoring sensor used in the vibration monitoring technology based on the vibration point method is affected by the mechanical vibration of the shearer, and it is difficult to deal with complex working faces; the application of electromagnetic measurement technology is affected by technical conditions , in the actual detection process, the detection range is small and the recognition accuracy is low

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