Among the main technical parameters rotary drum granulator The angle of inclination of the drum directly determines the time of stay, flow rate and the effect of granulation of the material in the drum. This is a key link between "production efficiency" and "particle quality". If the angle of inclination is too large, the material will quickly unload, which will lead to incomplete granulation. If the angle of inclination is too small, The material will accumulate, causing clogging and reducing performance.
How to determine the angle of inclination of the eardrum, for your production needs?
The key point when designing the angle of inclination of our drum granulators is the balance between the time of the material and production efficiency. This is based on two key technical factors. Based on these two points, you can determine the angle of inclination of the drum granulator that suits you.
- The path of movement of the material inside the drum: based on principles hydromechanics. The movement of the material in a rotating drum is divided into "sliding zone", "Parabox zone" and "rolling zone". With too large angle of inclination, the material quickly gets into the sliding zone. Insufficient stay time (less 2 minutes) And insufficient granulation. With too low angle angle, the material remains in the rolling zone for a long time. This can lead to the accumulation of material and clogging. Industry technical standards usually provide an angle of inclination from 2 ° to 5 °. This is done for that, so that the material moves mainly in the parabolic zone. Allows you to balance the time of stay (3–5 minutes) With fluidity.
- Dependence of productivity on the length of the drum: With a fixed daily volume of pellet production, the angle of inclination must be adjusted depending on the length of the drum. For example, for the drum φ2.2 × 6 m with watch performance 10 tons of inclination angle of 3 ° can satisfy the requirements for the flow rate of the material. If the length of the drum is reduced to 4 m, The angle of inclination must be increased to 4 ° -4.5 °, to ensure the same performance. Increase the speed of the material. However, it is necessary at the same time adjust the speed of rotation, To avoid decreasing granulation rate.
How to make accurate adjustments?
This requires the use of professional tools when making adjustments. You can use the level to measure the difference in heights between the two ends of the video. Calculate the value of the adjustment by the formula "Height difference = roller length × tan (The angle of inclination)». For example, If the video is long 6 m must adjust to 3 °, The difference in heights between the two ends will be approximately 6 X tan3 ° ≈ 0,314 m. Accurate positioning is achieved by the addition or removal of gaskets under the support of the roller.
More information about the rotary drum granulator can be found on the site:https://www.sxmashina.com/granulyator-s-vrashchayushchimsya-barabanom/