Direct ultimate disposal of spent fuel. Simulation of shaft transport. Conceptual design of a shaft hoisting equipment with a payload of 85 t

The conceptual design is based on a Koepe hoist and is intended for transport of the POLLUX casks with a large hoisting cage and counterweight. The hoisting engine is comprised in a winding tower, with a designed rope load of approx. 214.2 t in the hoistway, and of approx. 171.7 t in the balance pit. The hoisting equipment is designed as an 8-rope system with the ropes measuring approx. 50 mm across. The design was to take into account the conceptual design of the planned radwaste repository, characterized by the fact that the upcast shaft (shaft hoisting system shaft 2) is to serve as the transport shaft for radwaste containers, as this function requires additional airlocks in order to avoid shortcircuiting of air. The design comprises all in all the port for the hoisting car receiving the containers from a cross-gate, the shaft emplacement equipment, the hoisting tower, control equipment, the shaft furniture, the hoisting engine, the ropes and materials handling device, the counterweight, communicators, balance rope devices, and the electric system. (orig./HP)