Process and equipment for producing building elements used, for example, as dams parallel to a roadway, in underground operation

摘要

In a process and equipment for producing building elements used, for example, as dams parallel to a roadway, roadway backfills or the like, in underground operation from a pulverulent building material to which excess water is added for hydromechanical transport, the building material suspension being conveyed through hoselines or pipelines, being discharged at the end of the line and solidifying in the building element, it is provided according to the invention that a pulverulent activator which binds excess water is introduced dry into a proportionate quantity corresponding to the building material suspension conveyed at the time and is blown into the line upstream of the end at a pressure exceeding the flow pressure thereof, and that subsequently the stream of material is divided, its part streams are passed around one another along spiral tracks and recombined in the line cross-section, and the stream of material is then discharged from the end of the line.