ESTIMATING CAPACITIES OF APRON AND PAN CONVEYORS.

Apron and pan conveyors use twin chains to which horizontal, overlapping plates are attached to form a surface for carrying materials such as clay, coal, coke, ore, slag, rock, stone, gravel, and sand. When the plates have vertical side plates, they are called pans. Sizing them for a particular application is a detailed procedure, but often a quick estimate is desired for planning purposes. The article presents a nomograph that provides a short-cut method of estimating capacity of apron and pan conveyors. It also permits quickly determining the effects of variables, such as type of material handled and feed-conveyor size, on system design. A design problem is used to illustrate application of the nomograph.