The function of stainless steel circulation fan is to make the gas circulate in the pipeline, which can be connected to the heating and drying system or the dust removal circulation system.
The raw powder is collected by the cyclone dust collector, and the remaining small amount of raw powder is driven by the stainless steel circulating fan.
So many fine dust particles with the differential gas through the stainless steel circulation fan, so that the blade suffered continuous erosion.
Compared with the past, the blade edge at the blade outlet is worn.
Because this kind of wear is irregular, the impeller of stainless steel circulating fan loses balance.
In addition, many fine dust particles will be absorbed to the non working surface of the impeller when they flow through the stainless steel circulating fan due to the influence of air flow.
In particular, the inlet and outlet of non working face of stainless steel circulating fan impeller form more serious dust, and gradually thicken.
Due to the combined action of centrifugal force and vibration, the balance of impeller is destroyed, and the whole induced draft fan vibrates.
The general treatment of impeller scaling is to remove it with shovel or brush after the fan stops.
In the past, the static balance method was used to deal with the imbalance of impeller. According to the different position changes of disk impeller, combined with the experience in practical work, the weight and position that should be increased were found out, which basically ensured the static balance of fan in an ideal state.
The existing methods to deal with the imbalance of impeller are to use dynamic balance instrument and add blocks on site, so that the vibration parameters of fan can be controlled within the technical allowable range.
