Optimization of pneumatic transport systems with particular respect to modification of transportability characteristics by adding other materials
Optimization of pneumatic transport systems with particular respect to modification of transportability characteristics by adding other materials. Literature search revealed that pneumatic procedures typically used in hard-coal mining could be adapted for the transport of at least some building materials. Because of the different nature of the materials, an investigation was made into the possibility of using dense-stream pneumatic systems using laboratory scale equipment. Conflicting results were obtained in respect of the preferred grain size but the weight of evidence favoured powdered material. It was established in principle that pneumatic dense-stream systems could be used for building materials but that further investigations were necessary to determine the ideal conditions. It is considered that equipment is available to ensure a defined water-solids ratio and for measurement of rate of flow covering both mechanically- and pneumatically-operated systems but again these may need modification for building materials. No such equipment is available for control of the wetting-water required but a prototype was successfully evaluated. The investigation showed that the addition of fine-grained residues to the pneumatic transport system is feasible with suitable modifications and could be advantageous. It was also established that hydraulically-transported material could be added to the pneumatic system without difficulty.
Bibliographic Reference: EUR 17961 DE (1999) 126pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5447-7
Record Number: 199910959 / Last updated on: 1999-07-16
Original language: de
Available languages: de