Underground hollow space filler material - is mixed below ground in original container with addition of water then sucked out and pumped to site

摘要

In underground mining and tunnel construction, a process is used for filling, or partially filling, hollow spaces with filler material. The material is transported below ground in containers, mixed with continuous water additive, and it is pumped to the point of application. The material is mixed underground in the container(1) used for conveyance from above ground, without reloading. It is sucked straight from this as a ready-use compound, and pumped onto site. The mixing fluid can be continuously added on the base(24) of the container, with stirring paddles(12). The mixer and agitator gear (9, 12) may be pneumatically or hydraulically reversed at through the container, and automatically reversed at fixed stop points(26, 27).