11. Chain Pull Calculations
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Refer to section 2 Basic conveyor arrangement.
(2.1) Chain and material sliding
![\[ P=9.81\frac{[(M.F1+C.F3).SF]}{No.\ of\ Chains}[N] \]](https://www.johnkingchains.com/wp-content/ql-cache/quicklatex.com-be9dfb125ee7f1827bca8448d620db68_l3.png "Rendered by QuickLaTeX.com")
Where 
can be calculated as = H.B.L.b.y.1000 [Kg] or = L.Q/3.6V [Kg]
If Q is unknown it can be calculated as Q = H.B.b.y.V.3600 [T/Hr]
(2.2) Chain Rolling and Material sliding
Where can be calculated as = H.B.L.b.y.1000 [Kg] or = L.Q/3.6V [Kg]
If Q is unknown it can be calculated as Q = H.B.b.y.V.3600 [T/Hr]
(2.3) Chain Rolling and Material Carried
![\[ P=9.81\frac{[(M+C).F3.SF]}{No.\ of\ Chains}[N] \]](https://www.johnkingchains.com/wp-content/ql-cache/quicklatex.com-cb5d3f80ab4e06a0739ba3bcb669c906_l3.png "Rendered by QuickLaTeX.com")
(2.4) Chain Sliding and Material Carried
![\[ P=9.81\frac{[(M+C).F1.SF]}{No.\ of\ Chains}[N] \]](https://www.johnkingchains.com/wp-content/ql-cache/quicklatex.com-40120ea52cddee24ea5a1fc188dc1d86_l3.png "Rendered by QuickLaTeX.com")
(2.5) Chain and Material Sliding on an incline
![\[ P=9.81\frac{[cos\alpha(M+C).F1 + sin\alpha.M].SF}{No.\ of\ Chains}[N] \]](https://www.johnkingchains.com/wp-content/ql-cache/quicklatex.com-7dae26afc6f1c82e9ddc66f0c2ecc263_l3.png "Rendered by QuickLaTeX.com")
(2.6) Chain Rolling and Material sliding on an incline
![\[ P=9.81\frac{[cos\alpha(M.F1 + C.F3) + sin\alpha.M].SF}{No.\ of\ Chains}[N] \]](https://www.johnkingchains.com/wp-content/ql-cache/quicklatex.com-47289073cb464aecec8cf5f0bac6d91e_l3.png "Rendered by QuickLaTeX.com")
(2.7) Chain Rolling and Material Carried on an incline
![\[ P=9.81\frac{[cos\alpha(M+C).F3 + sin\alpha.M].SF}{No.\ of\ Chains}[N] \]](https://www.johnkingchains.com/wp-content/ql-cache/quicklatex.com-5a1d8b605404ccc4972c78fd42df467e_l3.png "Rendered by QuickLaTeX.com")
(2.8) Chain Sliding and Material Carried on an incline
(2.9) Chain and Material Elevated Vertically
![\[ P=9.81\frac{(C/2 + C).SF}{No.\ of\ Chains}[N] \]](https://www.johnkingchains.com/wp-content/ql-cache/quicklatex.com-726ab9385cdf36e984295d0951df651d_l3.png "Rendered by QuickLaTeX.com")
Note for (2.1) & (2.5) Chain and material sliding in scraper and drag link conveyors to calculate chain pull additional parameters must be included.
F2 = Coefficiency of Friction between material to be moved and sides of trough.
L = portion of loaded conveyor.
M = Mass of product to be carried.
H = Height of sides of trough.
B = Width between sides of trough.
b = Product depth not normally to exceed 60% of trough sides.
y = specific weight of material conveyed.
V = Chain Speed (M/sec).
|
Table 11.1 |
|
|
|
Material conveyed |
Spec. weight [T/m3] |
Friction coefficient F3 |
|
Oats |
0.45 |
0.70 |
|
Wheat |
0.75 |
0.40 |
|
Corn |
0.80 |
0.40 |
|
Dried barley |
0.45 |
0.70 |
|
Rye |
0.65 |
0.40 |
|
Rice |
0.75 |
0.40 |
|
Linseed |
0.70 |
0.40 |
|
Dried malt |
0.40 |
0.40 |
|
Wheat flour |
0.70 |
0.40 |
|
Corn flour |
0.65 |
0.40 |
|
Refined powdered sugar |
0.80 |
0.50 |
|
Cement |
1.00 |
0.90 |
|
Anthracite coal in pieces |
0.70 to 0.90 |
0.40 |
|
Coking coal |
0.50 |
0.70 |
|
Dried clay |
1.60 |
0.70 |
|
Ashes |
0.60 |
0.60 |
|
Cement Clinker |
1.30 |
0.80 |
