Use CM135B types of plastic as the substrate, according to the requirements of optimization selected vulcanization system, plasticizing system, filling reinforcing system, the type and amount of flame retardant system, performance test to finalize the formulation (parts by mass) of CM135B 100, DOP 10, chlorine paraffin 5, MgO 10, carbon black N330 20, 15 superconductive carbon black, calcium carbonate 50, composite flame 20, DCP5, TAIC 3, 15 other ingredients. In this case, the mechanical properties of rubber, flame retardant and antistatic properties have reached the mine blast tube outer gum requirements.