Arrangement for transporting powdery or granular material - construction-material mixtures (material to be conveyed) - for use in underground mining or tunnelling

摘要

The invention relates to an arrangement for transporting powdery or granular material - construction-material mixtures (material to be conveyed) - for use in underground mining, in which, compared with conventional arrangements of this type, a considerable or multiple increase in the conveyed quantity at the same cross-sections is achieved by a feed pump being arranged downstream of at least one mixing chamber. The feed pump is connected to the relevant mixing chamber by a relatively short feed connecting line. The wetting of the material to be conveyed is already effected in the feed connecting line so that a pumpable conglomerate or mixture is fed to the pump, designed, for example, as a high-pressure pump. In this way, the pump is able to hydrodynamically pump the material to be conveyed up to the face, and in fact over greater distances at relatively high pressures of, for example, 80 to 100 to 150 bar and conveying routes of, for example, 1000 m.