The coal industry is the pillar industry of our country. Mine safety in coal mine is the soul, while the underground gushing water is the important factor to threaten the mine safety. Underground drainage system shoulders the important task of underground water exclusion. Its safety and reliability directly influences the efficiency and safety of mine production. At present, part of the mine is still using the traditional manual operation of drainage system, the system of low degree of automation, stress difference, a lot of potential safety problems. China's coal industry development, improvement of coal mine main drainage monitoring system has become a trend of development.This topic from a zhang shuang lou mine production practice, aiming at the existing problems of underground drainage system, field investigation, collection and analysis of data, combined with modem technology and control theory, the research and development of a suitable for underground coal mine automatic drainage system.This design through to single-chip microcomputer as the controller and the PLC controller two kinds of scheme comparison, combined with the mining drainage system, put forward to PLC machine, PC machine for the upper computer of central pumping station automation control and monitoring system. Then based on the comparison and selection of the external equipment, formed a complete control system.The application of modern industrial control technology and detection device, can realize the automatic drainage system. The pump adopts automatic control and state detection. And extend its function, so that the underground water pump house in realizing unmanned operation at the same time, according to the specific circumstances and requirements, selecting the optimum operation scheme. |