What influence the compost screening trommel efficiency

June.10,2025

The influence of various factors on screening efficiency from large to small is drum speed, drum inclination, and feed amount; the influence of various factors on drum power consumption from large to small is feed amount, drum inclination, and drum speed.

There are different screening equipment for compost material screening, including vibrating screen, shaking screen, roller screen, drum screen, etc. The one-time investment cost of the vibrating screen is relatively small, but due to its working characteristics, hard objects have a greater degree of damage to the screen surface, and it is easy to paste the screen and inconvenient to clean. The disc screen has a strong material turning ability and strong wear resistance, but its use is limited by the aperture and is not suitable for screening materials in the post-composting stage.

As a rotary motion screening equipment, the drum screening machine works smoothly and is widely used in grain grading, selection and mineral sorting, but its application in the composting industry is rarely reported. The traditional drum screening machine used by some companies has a complex mechanical transmission method for installation. It is directly used in the composting industry. Due to the high processing capacity, the phenomenon of broken shafts often occurs. Due to the special nature of the compost material (high humidity and strong corrosiveness), its spoke structure is easily damaged. At present, most of the compost screening equipment is borrowed from other industries, which solves some problems of compost material screening, but it cannot adapt well to the characteristics of compost materials. It is easy to have problems such as screen sticking, corrosion damage of components, and high power consumption under large processing volume, which seriously affects the quality of screening operations.