A longwall change over generally takes 4 to 6 weeks. There is a need for forward planning and the use of critical path analysis is essential so as to prioritise the resources where they are needed. To prepare for a new longwall various tasks still need to be finished: Gas drainage of […]

Set up for Recovery Set the Armoured Face Conveyor (AFC) and the Beam Stage Loader (BSL) chains and break them. The maingate drive is disconnected from the BSL mini pans and AFC pans by removing the dog bone connector at the maingate drive. Removing the Pantechnicon The pantechnicon consist of […]

Bolt Up Sequence Stage 1 Cut from the tailgate in 20 chock sections. Place 1 “w” strap over the top of the chock (ie perpendicular to the face) anchored with 2 bolts set at 6.8 metres. Set rows 1 & 3 after row 2 at 7.3 metres & 6.3 metres. […]

The bolting up cycle is the first major procedure in the recovery of the longwall. The purpose of the bolting up cycle is to provide a safe working environment for the recovery of equipment by providing support to the longwall face. Support is provided to the roof, face, maingate and […]

Installation of Pans from Chock #5 to Chock #70 Ensure that pans are placed in their correct order and install pans 63 to 12 and then from 64 to 68. Chock Installation The chocks are installed on the new face in the position that they occupied on the previous longwall. […]