Regarding the efficiency of cyclone separators
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Is the collection efficiency of the cyclone separator better when the wind speed is higher or lower?
The collection efficiency of the cyclone separator should be as low as the wind speed.
The person above is misleading the poster. The higher the wind speed of the cyclone separator, the better the separation effect. In principle, the higher the flow rate, the greater the centrifugal force. The greater the possibility of particles being thrown to the outer wall, especially for fine particles. Example: The inlet area of the cyclone separator of the circulating fluidized bed * The smallest on the furnace air duct. The flow rate is also the highest, which can reach more than 60m/s, so this is also the location where wear-resistant materials are most likely to fall off and wear.
Depending on the system composition, if there is an induced draft fan at the back, the flow rate will generally be higher. If there is no power, settling will be the main problem.
It cannot be said that the wind speed is high or low. To determine the separation effect, different choices must be made based on different media and different air volumes.
Don’t just consider centrifugal force and gravity!
The higher the filtration wind speed of the cyclone separator, the better the separation effect, but the resistance will increase in a square relationship and the fan energy consumption will increase.
The efficiency of the cyclone separator does not exceed 85%. The effect depends on the balance of the three forces.
Generally speaking, the wind speed should be controlled at 10-15m/s