In Situ Non-destructive Testing of Man Riding Chair Lift System

Abstract

Man riding chair lift (MRCL) system is a transportation media for the people working in underground mines. Underground mines are opened in two ways: shaft sinking vertically from the surface to the coal seam and through an incline drifted horizontally following some gradient pattern normally 1:4.5 up to the coal seam. People have to travel a long distance to reach up to the working faces in underground mines through the incline. This long travelling distance consumes more time and energy to reach working places. Due to that, the miners get tired. Production losses are incurred due to less working hours and inefficiency of workers. MRCL is installed to facilitate the people working in underground mines. It reduces man effort to reach the face and also saves time. Non-destructive testing of MRCL is mandatory to ensure the safety of the people. In this paper, ultrasonic flaw detection technique and liquid dye penetration test were conducted for NDT of MRCL.