First of all, the reasonable design of the internal structure of the dust collector is the key. Environmental protection equipment-self-excited wet dust collector is usually equipped with spraying devices, dehydration devices and other components. The spraying device must ensure that the sprayed water mist is uniform and covers a wide range, so that the dust-containing gas can be fully contacted with the water mist, so that the dust particles are quickly wetted by water and condensed into larger particles. Imagine that when it rains, the dust in the air will be absorbed by raindrops and fall to the ground. If the spraying is uneven and the water mist is scarce in some areas, the dust cannot be fully wetted and is easily raised again under the action of subsequent airflow. At the same time, the design of the dehydration device is also very important. It must be able to effectively separate the moisture in the gas after dust removal, but it should not be too violent, so as not to break up the condensed dust particles again and cause secondary dust.
Secondly, it is crucial to control the operating parameters of the dust collector. Among them, wind speed is a key factor. If the wind speed is too high, the residence time of the dust-laden gas in the dust collector will be shortened, and the contact time between the dust and the water mist will be insufficient, resulting in some dust not being fully wetted and captured, and being easily carried out by the airflow, forming secondary dust. On the contrary, if the wind speed is too low, although it can ensure that the dust and the water mist have sufficient contact time, it may affect the processing capacity of the dust collector and lead to low equipment operation efficiency. Therefore, it is necessary to control the wind speed within a suitable range by adjusting the speed of the fan or the opening of the damper according to the actual situation, so that the dust-laden gas can fully contact with the water mist and ensure the processing efficiency of the dust collector.
Furthermore, the management of the water quality inside the dust collector should not be ignored. The quality of water will affect the quality of the water mist and the condensation effect of dust. If there are too many impurities or suspended matter in the water, the sprayed water mist may be uneven, and even block the spray device, affecting the spraying effect. In addition, impurities may also adhere to the dust particles, increasing the weight of the dust, but at the same time, it may also make the adhesion between the dust particles worse, making it easier to disperse under the action of the airflow. Therefore, the water in the dust collector should be filtered and replaced regularly to ensure the cleanliness of the water to improve the quality of the water mist and the dust removal effect.
In addition, regular cleaning of dust inside the dust collector is also an important measure to prevent secondary dust. During operation, some dust will be deposited on the bottom or wall of the dust collector. If it is not cleaned in time, the dust may be raised again under the action of the airflow. For example, when the equipment starts or stops, the sudden change of airflow may cause the dust to fly. Therefore, a reasonable cleaning plan should be formulated to regularly clean the inside of the dust collector, discharge the dust in time, and keep the inside of the dust collector clean.
At the same time, optimizing the inlet and outlet design of the dust collector can also reduce the occurrence of secondary dust. The design of the inlet and outlet should minimize the turbulence and vortex of the airflow. If the inlet and outlet design is unreasonable, the airflow will generate vortices when entering or leaving the dust collector, and these vortices will re-roll the settled dust, causing secondary dust. By reasonably designing the shape and size of the inlet and outlet, and installing guide plates, the airflow can smoothly enter and leave the dust collector and reduce the turbulence of the airflow.
Finally, it is also necessary to strengthen the operation monitoring and maintenance of the dust collector. Regularly check whether the various components of the dust collector are working properly, such as whether the spray device is blocked, whether the dehydration device is damaged, etc. Once a problem is found, it should be repaired or replaced in time to ensure that the dust collector is always in good operating condition. Only by ensuring the normal operation of the equipment can the occurrence of secondary dusting be effectively prevented.
By reasonably designing the internal structure, controlling the operating parameters, managing the water quality, regularly cleaning the accumulated dust, optimizing the inlet and outlet design, and strengthening the operation monitoring and maintenance, the secondary dusting phenomenon of the environmental protection equipment-self-excited wet dust collector during operation can be effectively prevented, the dust removal efficiency can be improved, and the normal operation of the equipment can be guaranteed.
