1, the density of material and property of
the material
2, the selection of the screw conveyor
model size and delivery distance, the installation direction, etc..
Approximate calculation formula of screw
conveyor:
Capacity Q = 47 D2 N TΦP C(t/h)
Formula:
Q - transport capacity (t/h);
D - conveyor diameter m;
N-- screw shaft speed r/min;
T - pitch m;
Φ - material filling coefficient, under normal circumstances, the
grain by =0.25 - 0.4, =0.25 - 0.35 psi oil, wheat bran, rice bran flourψ=0.25, ψ =0.2
P - bulk density t/m3;
C - conveyor angle coefficient;
S - helical blade pitch (m), S=0.8D of the
face, with a blade of S=D.
Calculation formula for ultimate speed:
Formula: N /min - helical axis limit
rotational speed (Y);
A - the coefficient of the material
properties, the general desirability of grain and oil materials is A=65.
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