Stowing substance for mine working

摘要

The stowing substance consists of alkali dusts from combustion plants, and these dusts are mixed with caustic solutions and/or salt water and/or water so that in the granulising process they produce a stable granulisation which can be introduced emissions-neutral into the mine chambers without a binding material additions. Substances such as residues of sewage sludge and/or other industrial residues in the form of sludges may be introduced into the mixture.