Scraper and Apron Conveyors

Scraper conveyors (a) horizontal conveyor and (b) Z-type conveyor-elevator. 

The main variables for selection and design of scraper conveyors are the capacity and the power. The capacity of horizontal scraper conveyors loaded with materials of approximately 800 kg/m bulk density, has been calculated and is presented in Table 3.8. The theoretical horsepower requirement P for flight conveyors can be determined from the following equation  

The calculated horsepower must be adjusted to compensate for expected maximum capacity, starting friction, loss in the driving mechanization. 

For different density materials, capacity proportional to weight per cubic meter of material. 

Capacity of inclined conveyor compared with horizontal one  

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