In the organic fertilizer production line, the methods for reducing noise by the drum screener machine are as follows:

1. Optimize equipment design: According to the screening requirements, a fully enclosed structure drum screen can be adopted, which is easy to collect dust in a closed manner, reducing dust flying and noise transmission. Under the premise of meeting the performance requirements of the equipment, low-noise motors, reducers and other components should be selected as much as possible.

2. Improve the operating environment of the equipment: Inspect the shell of the drum screen to ensure good sealing, reduce dust caused by air leakage, and thereby appropriately lower noise. Ensure smooth feeding of organic fertilizer equipment to avoid increased noise caused by poor feeding.

3. Strengthen equipment maintenance: Regularly inspect the components of the drum screen, such as rollers and bearings, to ensure good lubrication and replace worn parts in a timely manner. Regularly inspect and tighten all components on the vibrating screen, especially the screen plate and other parts that need to be replaced frequently, to avoid additional vibration caused by the loosening of individual components.

4. Application of noise reduction materials and technologies: Sound insulation cotton layers, sound-absorbing boards, and sound-absorbing cotton layers are successively set on the inner wall of the isolation cover of the drum screen. Through multiple absorption and isolation of noise, a good noise reduction effect is achieved.

5. Adjust the operating parameters of the equipment: When the material is dry, water can be sprayed appropriately at the inlet of the drum screen, but it is necessary to pay attention to avoiding material blockage or bag clogging of the bag-type sound insulation filter bags due to excessive water spraying. Set the rotation Angle of the belt conveyor reasonably to avoid the spread of dust and the increase of noise caused by improper setting at the corner.

Through the above measures, the noise of the drum screen in the organic fertilizer production line can be effectively reduced, the working environment can be improved, and the production efficiency can be enhanced.