Hydraulic solids conveying systems for bulk materials such as ore and coal are mostly conceived as long-distance transport systems.
On the other hand pneumatic conveying systems are predominantly used for the purpose of direct materials handling or of transport within production sequences.
The tasks to be fulfilled by the control technician differ depending on the system to be used.
In the one case the most important aspects are the particular characteristics of long-distance transport and in the other case, emphasis must be placed on integration into the necessary production sequences.
In the case of long-distance transport, the technical problems to be solved are similar to those known in the fields of oil and gas pipelines or long distance belt conveyor systems.
■