Now, the household rice mill manufacturer will talk about how to solve the problem of loud noise from the rice mill fan

Household rice mill manufacturer: How to solve the problem of loud noise from the rice mill fan?

As an important piece of equipment in rice processing enterprises, the rice mill is also a significant source of noise. This paper analyzes the main reasons for the noise generated by the rice mill, including the rice milling chamber, fans (blowers and chaff suction fans), drive motors, transmission belts, etc. Today, I will introduce the solutions to the noise from the rice mill fan.

When choosing a rice milling machine, it is not only necessary to determine the model of the purchased equipment based on the requirements of the process equipment, but also to pay attention to the selection of the equipment manufacturer and the understanding of the manufacturing level. Not only the performance of the main body of the rice mill should be taken into account, but also the performance of the fan it is equipped with. In practice, it has been found that even under the same working conditions, the noise levels of the same type of fans from different manufacturers vary greatly. Low-noise fans have good performance in all aspects, stable and reliable operation, and a long service life. Therefore, starting from the source of fan noise control, It is particularly worthy of our attention.

2. Select reasonable operating parameters for the fan. Different operating parameters of the fan generate different noises. When the air volume is large and the rotational speed is high, the noise increases. For example, the air volume generated by the blower of the rice milling machine should be sufficient to blow up the rice grains and carry the rice bran through the sieve holes. The wind speed in the spray trough should be higher than the suspension speed of the rice grains. The wind pressure should be capable of overcoming network resistance to maintain the air volume necessary to reach the above-mentioned wind speed. Generally, the air volume required for processing each ton of rice per hour is 100 to 150 m ³ /h, the wind speed at the air duct outlet is 12 to 14 m/s, and the air pressure is 100 to 300 Pa.

3. Flexible connections should be adopted at the inlet and outlet of the fan. The base should be equipped with shock-absorbing pads of good strength. When conditions permit, silencers should be installed at the inlet and outlet of the fan. Coating damping materials on the fan casing can not only reduce the noise radiated by the fan but also absorb noise. The thickness of the pipes at the fan inlet and outlet has a certain impact on the formation of noise. If the material is relatively thick, The noise generated by the airflow on the pipe wall will be lower; otherwise, it will be higher.

4. Regularly inspect and maintain the fan, regularly check the bearing oil, and solve problems in a timely manner, especially to promptly remove the dust on the fan impeller blades, and replace worn bearings and fan impellers in a timely manner to ensure the fan is installed firmly and the connection of all components is firm, so that the fan can operate smoothly. At the same time, consider the fan's usage environment and working conditions to ensure that the fan is in good condition. If any abnormal situation is found, stop the machine immediately to eliminate it. Do not work while faulty.

That's all for today's explanation from the household rice mill manufacturer's editor. Thank you all for watching. We hope the above explanation is helpful to you. If you need a large rice mill or rice milling machine, you can contact our company.