Control method of unattended operation for coal mine comprehensive mechanized mining face

Abstract

The invention discloses a control method of unattended operation for a coal mine comprehensive mechanized mining face. The control method is realized on the basis of a centralized control function of an end head controller, a double RS 485 bus communication mode is adopted by the end head controller, one bus is used for polling a working condition parameter of a working face hydraulic support and sending the working condition parameter to a central explosion proof computer; the other bus is used for carrying out centralized-control, determining a running position of a coal cutter through polling the state parameter of the hydraulic support, sending a control command to an inter-frame controller through the buses, controlling the movement of the hydraulic support and matching the marching coal cutter to carry out automated operation, the end head controller forms a bent section through a control support push sliding, so as to assist the coal cutter to realize the technology of beveling, cutting feed and triangular coal slicing. According to the control method of the unattended operation for the coal mine mechanized mining face, the unattended operation automatic production of the working face is realized, the degree of automation is high, the communication is stable and reliable, the mining efficiency is improved, the safety production is guaranteed, the labor intensity is reduced and the range of application is wide.

Description

technical field [0001] The invention relates to the field of electro-hydraulic control of underground hydraulic supports in coal mines, in particular to a control method for unattended operations in fully mechanized coal mining face realized through the centralized control function of a terminal controller, so as to achieve automatic mining underground in coal mines. Background technique [0002] With the rapid development of the coal industry, the automatic production of high-yield and high-efficiency fully mechanized mining faces is the development direction of coal mines in my country. The electro-hydraulic control technology of hydraulic support is the key technology to realize automatic coal mining in fully mechanized mining face, and it is an important way to improve coal mining efficiency and ensure underground safety production. The terminal controller is used as the control core to remotely and centrally control the controllers of each frame to achieve the purpose o...

AI Technical Summary

Problems solved by technology

The currently used hydraulic support electrical industry control system generally has problems such as poor communication anti-interference ability, poor automation control effect, low safety and low mining efficiency.

Therefore, it has not been promoted and used in coal mines, and it cannot meet the production requirements of high-yield and high-efficiency fully mechanized mining faces.

It is precisely because of this that it seriously restricts the development and popularization of my country's high-yield and high-efficiency fully mechanized mining face, and has become a bottleneck restricting the development of my country's coal industry.

Images