Flat belt load areas & capacity for conveyor

* Flat belt load areas & capacity for conveyor

(Refer to “Belt Conveyors for Bulk Materials”:CEMA)

 

1. Flat belt load areas

 

• Load area

As =Area sector (ABCE) = (π r^2𝛼/180)-(r^2 sin2𝛼/2)

     = r^2{(π𝛼/180)-(sin2𝛼/2)

     = {(0.890b-1.8)/2sin𝛼}^2 × {(π𝛼/180)-(sin2𝛼/2)}

     = {(0.445b-0.9)/sin𝛼}^2 × {(π𝛼/180)-(sin2𝛼/2)}

     = (      ) (in^2)

- b = width of belt (inches)

- r = radius of surcharge arc (inches)

- 𝛼= angle of surcharge (° degrees)

 

• Total load area

At = As = (      ) (in^2) = As/144 (ft^2)

- b = width of belt (inches)

 

or

At = As = (      ) (m^2)

- b = width of belt (mm)

 

2. Belt capacity

 

• Max. capacity

Q = {(60×At×V×ϒ) / Mc} × 100

    = (      ) (ton/hr)

- At = total load area (m^2)

- V = belt speed (m/min)

- ϒ = material density (ton/m^3)

- Mc = capacity margin (%)