Germany – Railway and tramway locomotives and rolling stock and associated parts – Lieferung einer Brecheranlage mit elektromotorischem Antrieb unter Tage

For the connection of the backfill locations Abbau 3 and 5, starting from the -231 mNN level of the Schachtanlage Marie mine, via Abbau 4a north of the -332 mNN level of the Schachtanlage Bartensleben mine, a crusher plant with electric motor drive and corresponding equipment for underground use is to be procured. To ensure the disposal of the backfill (30,000 m³), a conveyor roll hole to the -332 mNN level of the Schachtanlage Bartensleben mine will be driven at the end of a new alignment section to be driven. The conveyor roll hole will be driven through in Abbau 4a north and will have a length of approximately 82 m. To avoid blockages during later conveying via the conveyor roll hole, a crusher with electric motor drive for pre-crushing is to be installed at the roll hole head. The feed material consists of pre-crushed rock salt from mining, mixed with proportions of steel and iron, which is present as anchor and rod material as well as wire mesh from the drift renovation. The final product must optionally have a grain size of 0 to 40 mm or 0 to 16 mm. The requirements and safety standards for earth-moving machinery according to DIN EN 474-1 must be met, as well as the guidelines of the LBEG and the standards and state of the Technical Regulations.