Coal Mine Fully mechanized Caving Face Rotating Mining and Its Application Research
Due to the influence of mining area boundaries and faults,arrange the working face cutting holes in accordance with conventional alignment will result in the loss of a large amount of coal resources in the entire mining area.In order to maximize the recovery of resources,taking the 1310 working face of Dongtan Coal Mine as the research object,a set of reasonable rotating mining scheme is developed.Key technologies for rotating mining,such as control of upward and downward movement of scraper conveyor,bracket control and conveyor overlap,and roof control,etc,are analyzed,and the work scheme applicable to the site is summarized.Through on-site application,this scheme effectively ensures the normal stoping of the working face,compared with conventional arrangement,only one working face can recover an additional 60000 t of coal resources,improving the recovery rate of coal resources and achieving good social and economic benefits.
fully mechanized caving techniqueirregular working facerotating miningupward and downward movementroof management
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