Selection Principle of Cyclone Type Dust Collector

1. Selection principle of cyclone type dust collector

① The amount of gas purged by the cyclone type dust collector should be consistent with the amount of dust-containing gas that needs to be treated. The diameter of the cyclone type dust collector should be as small as possible. If the required air volume is large, it is advisable to use several small diameter cyclones in parallel.　　

② The inlet wind speed of the cyclone dust collector should be maintained at 18~23m/s. When it is too low, the dust removal efficiency will decrease: when it is too high, the resistance loss and power consumption will increase, and the dust removal efficiency will not increase significantly.　　

③ The selected cyclone type dust collector has small resistance loss, low power consumption, simple structure and easy maintenance.　　

④ The smallest dust particles that can be captured by the cyclone type dust collector should be slightly smaller than the dust particle size in the gas to be processed.　　

⑤ When the temperature of the dust-containing gas is high, keep warm to avoid condensation of moisture in the dust collector. If the dust does not absorb moisture and the dew point is 30-50℃, the temperature of the dust collector should be at least about 30℃ higher. If the dust has strong water absorption (such as cement, gypsum and alkali-containing dust ), the dew point is 20-50℃ The temperature of the dust collector should be 40-50℃ higher than the dew point temperature.　　

⑥ The structure of the cyclone dust collector should be airtight to ensure no air leakage. Especially for negative pressure operation, more attention should be paid to the reliability of the discharge air lock device.　　

⑦ Flammable and explosive dust (such as coal powder) should be equipped with explosion-proof device. The usual practice for explosion-proof devices is to add a safety explosion-proof valve to the inlet pipe.　　

⑧ When the dust viscosity is small, the maximum allowable dust concentration is related to the diameter of the cyclone, that is, the larger the diameter, the greater the allowable dust concentration.