Emergency control of technological environment and electric machinery activity in coal mines

Abstract

The authors develop standards and design of pre-emergency, emergency and post-emergency control of mine technological environment and electric machinery activity. The electric machinery operation parameters to be controlled are energy supply of explosion-proof electric machinery, cable integrity and improper access to the machinery; the control objects are switchers and starters within an extraction district. The technological environment parameters to be controlled are gas content, including CH 4 , CO, CO 2 and O 2 , variation in mine air pressure, light, sound, temperature, acceleration or dislocation of central control unit housing. The article presents engineering solutions on subsystems of data reading, processing and storage. CONCLUSIONS 1. The authors have developed the basic standards and characteristics of PECS meant to accomplish continuous integrated control over state of electric equipment and air in coal mines and prevent from the equipment operation infringement that, together with impermissible methane concentration, is the cause of explosions in mines.2. In cases of emergency, the systems run the objective documentary control and record of the mine area parameters in the accident and post-accident mode.3. The authors present engineering design of the data processing, storage and retrieval. 4. The designed and manufactured brassboards of the PECS subsystems have successively passed probation. Engineering design of the remote wireless data transmission, low-voltage network communication and program support of the data acquisition and transmission subsystem have been developed.

Analysis of operator’s activity in control rooms of underground coal mines

“…[4][5][6] From the analysis of these factors, it can be concluded that it is necessary to significantly improve the efficiency of the safety system in underground coal mines. [7][8][9][10][11][12] The improvement of the security system is achieved by establishing adequate communications between control rooms and underground workplaces [13][14][15][16] ; by establishing effective environmental monitoring [17][18][19] ; by applying different methods of automation of production and transport 20,21 and significant application of ergonomic principles in the analysis of human activities in this field. [22][23][24] Analysis of the activities of operators in control rooms of a coal mine is very important to achieve optimal performance of the management system.…”

Communication Channels in Systems for Remote Monitoring of Mining Electrical Equipment Operating Modes

“…Mining operations stability is also greatly affected by severe operating conditions including extreme seasonal variations in temperature, various types of precipitation throughout a year, vibration, dustiness and etc. In this regard active research and pilot studies are currently in progress to work out various remote monitoring systems which allow monitoring of power consumption trends and operating conditions of electric equipment for surface and underground mining, including start-control devices, generators, electric motors, their emergency protection and control systems [1], [2], [3], [4].…”

Data Acquisition and Remote Control Systems in Coal Mines: A Serbian Experience

“…33,34 Therefore, the emergency control of technological environment and robust software control of the electric machinery activity in coal mines are needed. 35,36…”

“…33,34 Therefore, the emergency control of technological environment and robust software control of the electric machinery activity in coal mines are needed. 35,36 The next step in the development of CIS in underground coal mines is the introduction of teleremote systems. 37 The introduction of these systems can provide significant improvement in mine production performance and safety of workers who are removed from the most dangerous locations in the pit during the extraction of coal.…”