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A friction hoist sliding protection system(FHSPS) which taking use of Siemens S7-300 and WinCC configuration software is designed in this paper. According to the probation in a coal mine of Qidong, China, any mistaken action is find since putting into use, it not only can alarm the sliding malfunction, but also can brake the wirerope and cage while the malfunction comes up.
Minerals are the primary resources of economic and social development. But the nature of mining and mineral development is such that various adverse impacts upon the local communities are usually inevitable. Consequently, the process of mining-led economic and social development is often associated with tensions among corporate mining objectives, recipient community needs, and governmental policy...
Aiming at the drawbacks in disposing coalmine accident hidden troubles the paper sets forth the market-oriented concept and method of coalmine accident hidden troubles. The method fixes on the quantitative value of unsafety state and the hidden troubles factors composed with behavior, technology, environment, and equipment, and establishes accident hidden troubles price system. It constructs the market-oriented...
The system utilizes the object-oriented analysis method and the broad-based B / S / D software architecture. Then researching and developing the coal mining security equipment's intelligent monitoring and management system of being based on the web-environment, the Web server software on this system using the tomcat6.0. Connecting the database by struts and ibatis dynamic web page technology and framework...
In order to realize safety prediction of workface stray current, it's important to confirm the characteristic indexes of workface stray current so as to insure the time margin and reliability of prediction. By analyzing the resistance distribution network of the system, the paper confirms the four parameters as follows to be the characteristic indexes of coalface stray current safety prediction: the...
The construction of intelligent mobile phone coal mine production and safety-monitoring system is based on the various existing safety-monitoring systems, for instance the coal mine gas-monitoring system etc, and coal mine production management system already in use in the coal mine. It makes use of intelligent phone as a platform and realizes its functions of safety monitor and production control...
Reinforcement learning is an algorithm without model which is learning what to do--how to map situations to actions-so as to maximize a numerical reward signal. Reinforcement learning provides an available method to the systems, which are very difficult to build up accurate models around complex environment. But now many practical problems demand a maximum reward with not much cost (expense). For...
Based on the characteristics of coal mine safety information - activity, dynamic changes, closely related to the space, this paper puts forward the project about the safety monitoring system of coal mine based on spatial data mining ,and builds a coal mine safety monitoring system model based on spatial data mining and GIS technology. The safety monitoring system of coal mine will fundamentally reduce...
Based on the ideology of "using the monitor data to reflect the production safety and using the risk analysis and safety evaluation methods to guide safety management to realize the objection of mine coal safety state warning and assistant decision-making support system", with Bofang coal mine of Shanxi Orchids Corporation's practical experience in safety state management, we set up a warning...
The plant has raw materials, which are high in pyritic sulfur. The coal mill uses the preheater exhaust gases, which have elevated amounts of SO2. The coal being used is highly volatile. Therefore the coal mill bag filter had few occurrences of smoldered bags causing potentially unsafe conditions. This problem was solved by implementing some operational changes like reducing the mill exit temperature...
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