Nitrogen injection to the gob with buried pipes is used in 7235 full-mechanized caving mining face in Xuzhuang Colliery to prevent the left coal oxidizing and self-igniting.
介绍了徐庄煤矿7235综放面开采中，采用埋管注氮方式向采空区注氮，防止采空区遗煤氧化自燃。
The improved conveyer has a high reliability proved practically, obtains good economic returns and social benefits used with corollary equipments of the full-mechanized caving coal working face.
实践证明改进后的输送机可靠性高，与综放设备配套使用，取得了较好的经济效益和社会效益。
The adjustment of parameters of the fuzzy PID controller is the key to the application of the fuzzy PID controller in Full-mechanized working Face of Coal mine.
模糊pid控制器在综放工作面中的应用的关键是模糊控制器的各个参数的整定。
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