Traction power parameter of non-interval drag pipe nitrogen injection for fire control
Aiming at the problems of buried tube nitrogen injection that the nitrogen injection spot with intervals in the space causes the failure of continuous nitrogen distribution in goafleading to poor inert effect.In additionthe unrecycling of the nitrogen injection pipe causes great resources
waste.Based on the principle that the shear capacity of the mining nitrogen injection pipe is superior to its tensile strengthnew fire nitrogen injection processrotating traction and non-interval was designedfundamentally solving major defects of buried pipe nitrogen injectionwhich can realize
the synchronous movement between nitrogen injection point and the workface.According to the relevant principles of planar problems in elastic mechanicsthe calculation method about dynamic parameter of non-interval nitrogen injection process for fire control was put forward.By using a geotechnical
engineering numerical simulation softwarethe stress distribution of the nitrogen injection pipe in the goaf of Yanzishan Mine was simulatedand the traction power was computed based on it.
Keywords: nitrogen injection for fire control; non-interval; rotating traction; traction power parameter
Document Type: Research Article
Publication date: 15 July 2012
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