Method for the dust-free transport and handling of pack building materials for underground mining

摘要

A conveying trough with a tiltable and/or pivotable cover for the dust-free transport of pack building materials of flue gas desulphurisation gypsums is overturned onto a hopper during tipping, the cover coming to rest on cheek-like projections of the hopper, preventing the escape of dust. By means of a mounted filter together with the overturned conveying trough, the hopper forms an enclosed box-like unit, which is kept at reduced pressure, the mounted filter being connected to the blower via a suction pipe.