Method of and pipeline for locating smoke-box dust in goafs of longwalls with caving.

摘要

2. The pipeline for locating smoke-box dust in the goafs of longwalls with caving, especially the walls equipped with mechanised housing. The pipeline is equipped with outlet stub pipes and it is positioned along the front of a longwall. Unique characteristics: Each outlet stub pipe (3) is connected to the pipeline (2) by means of a three-way pipe (4), consisting of a horizontal part (5) and a vertical part (6), connected permanently with a slanting part (7) at the angle of 45 degrees to the longitudinal axis of the horizontal part (5). This part is closed with a separable lid (8) at the side facing the wall.