Conveyors flight conveyor

The power consumption of the chain conveyors (flight conveyors and continuous-flow conveyors) described here is dependent on many more factors than those which govern the power consumption of conveyors which carry the material, as... 

Belt conveyor Apron conveyor Flight conveyor Drag chain En masse conveyor Screw conveyor Vibratory conveyor... 

Type 1 malleable-iron conveyor flights type 2 steel flights on roller chain type 3 steel flights with wear shoes or rollers type 4 steel flights on plain chain. 

Ks dependent on composition, 377 Flight conveyors, 81 Flocculants, 309 Flocculation, 351... 

Table 9.—Economic Speeds for Flight Conveyors Handling Various Materials...

Formulas for ascertaining the capacity of flight conveyors with rectangular flights equally spaced and the conveyors economically and continuously loaded are ... 

Power Requirements,— The consumption of power in operating flight conveyors is materially affected by whether the flights are mounted on sliding shoe or roller flights. Formula (12) by the use of the proper constant permits the calculation of power requirements in either event. 

Depreciation varies greatly in the case of flight conveyors as both the flights and the trough are subject to severe abrasive action by the material with which they are in contact in operation. Virtually every material varies in its destructive action. With Formula (14), depreciation factors for some of the materials commonly handled by flight conveyors are given. 

Fixed charges for flight conveyors may be taken, as in the case of belt conveyors, at 8.5 per cent per year, but in addition there is an annual renewal charge amounting to about 20 per cent of the initial cost. 

The respective net costs of operating the two types of flight conveyors differ to some extent, as will be noted in the following example. 

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