En masse conveyor performance calculations

When selecting an en masse conveyor, a key consideration is the volumetric throughput of the conveyor, which can be converted to a mass throughput by the use of the appropriate bulk density. 

The volumetric throughput is related to a number of factors, these being the cross-sectional area of the bed, the chain velocity and a factor that is a slip factor between the chain and the bulk material. The value of r can generally be taken to as 1.0 for a horizontal conveyor and varies between 0.6 and 0.85 for inclined and vertical sections. 

The mass throughput is a function of this volumetric throughout and the bulk density of the material in the bed. 

Experience has shown that the optimum velocity, the chain and flights is dependent on the type of material and can be categorised into three groups  

1 The free-flowing materials, which have an optimum velocity of greater than 0.5 m/s 

---