How to choose a reducer for a single tube screw conveyor?

How to choose a reducer for a single tube screw conveyor?  

Firstly, the required torque is calculated based on the viscosity, volume, and weight of the material. Then, the power is calculated, and the rotation speed of the screw is calculated based on the conveying volume of the screw and the conveying amount of the fuel material. The reducer can only be selected when there is power and speed available.

Spiral Conveyor; How is the delivery volume calculated??

The conveying capacity of a screw conveyor can be calculated using the following formula:

In the formula: Q - conveying capacity (t/h);

D - Spiral blade diameter (m), the standard values in Table 5-11 series should be selected;

N - Spiral shaft speed (γ/min);

γ - Material bulk density (t/m3);

Fill factor, generally speaking, grain particles have a fill factor of 0.25~0.4, oilseeds have a fill factor of 0.25~0.35, bran and rice bran have a fill factor of 0.25, and flour has a fill factor of 0.2

S - Spiral blade pitch (m), full face blade S=0.8D, belt blade S=D.

C - Correction coefficient for inclined conveying.

The determination of blade diameter is based on the premise of known conveying capacity. After D, the rotational speed of the helical shaft can be calculated using the following formula. The screw speed n of the screw conveyor should not exceed its speed, otherwise its mixing effect on the material will exceed the conveying effect, and it can only mix the material without conveying.

The speed calculation formula is:

In the formula: n0- Spiral shaft speed (γ/min);

A - Comprehensive characteristic coefficient of materials, generally applicable to grain and oil materials. A=65。