APPARATUS AND METHOD FOR INJECTION AND DISSEMINATION OF DRY FLY ASH IN MINE VOIDS

摘要

A supplemental source of compressed air is introduced near the discharge end of a conduit introducing air entrained dry fly ash into a mine void, to maintain the free flow characteristic of a fly ash mixture for a greater time and distance than would be the case without such introduction of supplemental air. A diffuser is used to disseminate the supplemental air into a plurality of streams.