The main injection tube and supporting injection tube chip the mud into pieces which is transported in dry method by the system made up of mud plug and gas plug.

• 该方法通过主喷吹管和辅喷吹管联合作用，将泥屑(物料)离散成由泥屑塞和气体塞组成的双管气力输送系统，对泥屑进行干法气力输送。