A kind of intelligent speed regulation system and working method for coal mining and transportation in fully mechanized working face

Abstract

The invention relates to an intelligent speed regulating system for coal mining and coal handling of a comprehensive mechanized coal mining face. The intelligent speed regulating system comprises a wireless tension monitoring device, an eddy current proximity switch, a wireless signal receiving device and a main control computer, wherein the wireless tension monitoring device is arranged on the inner side of a cylindrical section and is used for collecting and sending tension data of the engaged position of a scraper chain and a nose sprocket in real time; the eddy current proximity switch isarranged on the outer side of the cylindrical section and is used for controlling the wireless tension monitoring device to output the tension data of the engaged position of the scraper chain and thenose sprocket; when the eddy current proximity switch is closed, the collected tension data of the engaged position of the scraper chain and the nose sprocket are sent to the wireless signal receiving device by the wireless tension monitoring device; and the wireless signal receiving device is connected with the main control computer. According to the intelligent speed regulating system for coalmining and coal handling of the comprehensive mechanized coal mining face, the load of a scraper conveyor can be accurately monitored, the working efficiency of the system is effectively improved, andthe service life of the scraper conveyor and a coal mining machine is prolonged.

Description

technical field [0001] The invention relates to an intelligent speed regulation system and a working method for coal mining and transportation in a fully mechanized mining face, belonging to the technical field of mining equipment. Background technique [0002] The scraper conveyor is one of the most important conveying equipment in the entire comprehensive coal mining face. Its main function is to unload the coal cut off by the shearer to the forward loader. When the amount of coal intercepted by the shearer changes, the amount of coal transported by the scraper conveyor will also change. However, since the current speed of the scraper conveyor remains unchanged, changes in the amount of coal transported will easily cause the scraper conveyor to enter a light-load state, which will greatly reduce the working efficiency of the scraper conveyor, increase the operating energy consumption of the equipment, and shorten its life. Use cycle. Therefore, it is very necessary to in...

AI Technical Summary

Problems solved by technology

This speed regulation method monitors the amount of coal through a laser scanning sensor, but because the coal blocks are scattered and easy to accumulate, the accuracy of the coal amount reflected by scanning the thickness of the coal seam is low, and adjusting the speed of the scraper conveyor too often will easily reduce the life of the motor

[0004] Shearer is also one of the most important conveying equipment in the entire comprehensive coal mining face. During the daily operation of the coal mine, the underground construction conditions of the mine are very complicated, and most of the cases are man-made operations. Due to the lack of coal loading capacity of the scraper conveyor Accurate monitoring, then the shearer and scraper conveyor are very likely to be overloaded or overloaded, resulting in equipment failure, affecting the production efficiency of the coal mine or shortening the service life of the equipment, resulting in huge economic losses

In the past few years, the society’s demand for coal has been very large. In order to produce more coal in a short period of time, many coal mines have introduced more advanced coal mining machines, but the relevant transmission equipment has not been improved, and the traditional transmission equipment is still used. equipment, resulting in the failure of the scraper conveyor due to excessive load, and production had to be interrupted

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