The management personnel of mine production, about loss and depletion management, are estimated to be spoken every day, every month, and every year. What is its essential meaning, the exact extent of economic significance, estimated that very few people can say clearly, Taking a gold mine, for exam
A few days ago, the General Administration of Quality Supervision, Inspection and Quarantine issued an announcement to introduce the development of the national quality supervision and spot check in 2017. In 2017, the state supervised and checked 8 categories of products, a total of 164 kinds. Inc
The energy consumption of the mining process refers to the main production system of the mining process (mining, mining, mining, lifting, compressed air, ventilation, water supply and drainage, lighting, etc.), auxiliary production system (mining machine repair, auto repair, electric repair, explos
Researchers at Northwestern University in the United States have developed a wearable sensor in the form of an adhesive plaster to help doctors monitor the activities of stroke patients in real time, understand the effects of treatment, and facilitate the implementation of precise treatments to sp
This standard specifies general principles for creating metal and nonmetal underground mine safety standardization system, the creation process and the core content. This standard is used to guide AQ2007.2 "Guidelines for the implementation of safety standards for underground non-metallic mine
(A) tin ore beneficiation methods and quality requirements of tin concentrates In addition to low-concentration tin-rich ore containing more than 40% tin, it can be directly smelted without beneficiation, and other tin ore is generally subjected to beneficiation, and is integrated with tin concent
With the development of science and technology, the precision air-conditioners in the engine rooms have also been gradually upgraded and the cost has become higher and higher. Therefore, it is also necessary to increase the maintenance efforts. Today, Henan Luqing Electrical Equipment Co., Ltd., a
