How to Reduce Noise in Triple Cylinder Drying Machine？

The three-return dryer and other dryers are medium and large machinery, and the three-return dryer produced by the old era and the undeveloped technology dryer manufacturers is noisy in the operation process.
Now our country is advocating energy conservation and environmental protection, and the noise of the dryer also affects the lives of residents. In today’s advanced society, the noise problem of the three-trip dryer can be avoided, so how is it done? For you to analyze how the three-return dryer is able to reduce the noise problem:

1. Add sound insulation cover. The whole three-pass dryer is closed by using steel structure skeleton, thin steel plate as shell, internal damping layer and filling with ultra-fine glass wool or other sound absorbing materials. Because the three-return dryer generates a lot of heat when it is running, attention must be paid to solving the heat dissipation in the cover and facilitating equipment maintenance. 

2. With rubber liner instead of manganese steel liner, the noise level can be reduced by 9dB(A), and the spectrum characteristics also have high frequency to low frequency.

3. Set the elastic layer. Lay a heat-resistant soft rubber pad between the inner surface of the three-return dryer drum and the liner, in order to prevent the soft rubber pad from overheating, lay an industrial felt with a thickness of 10-15mm between the three-return dryer liner and the soft rubber pad, which can reduce the noise of the three-return dryer to below the allowable standard.

4. Wrap the sound insulation layer on the outside of the drum wall. Wrap A layer of 50mm thick industrial felt on the outside of the three-pass dryer drum, and use a 1.smm thick steel plate as a protective surface. It is fixed on the outer wall of the drum with bolts. The actual sound insulation value is about 12dB (A). If the same treatment is done at both ends of the drum, the seam of the drum wall is well sealed, and the sound insulation effect may also be improved.

5. Design sound insulation. When conditions permit, the three-return dryer will be concentrated in the special three-return dryer room, the three-return dryer will be transformed into a special sound insulation room, the effect will be better than the sound insulation cover, but attention must be paid to the monitoring of the operation of the three-return dryer, indoor heat dissipation and maintenance problems.