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Products produced in many large factories often use combustion processes, which generate a lot of waste gas. In addition to the SOX and NOX generated by combustion, the exhaust gas is generally accompanied by a large amount of dust and exhaust gas discharged into the atmosphere. In order to capture this dust and prevent it from being discharged into the atmosphere, there are dry dust collection method or wet dust collection method to achieve this purpose. One type of dry dust collection method is the cyclone dust collection method that uses centrifugal force to collect dust. The improvement of the dust collection capacity of this method is an urgent problem to be solved. Therefore, this paper mainly studies the influence of temperature, wind speed and dust particle size on the efficiency of cyclone dust collection method. The studied range of temperature was between 150 °C and 300 °C. It was found that the temperature change did not significantly affect the amount of dust captured by this method, but dust agglomeration in pipe would occur when the temperature was too low, and the temperature had to be fixed above 200°C to ensure that the dust would not agglomerate in pipe. The speed range of the wind is from 8m/s to 25m/s in this research. The results show that: when the temperature is above 200℃, there is an obvious relationship between the amount of captured dust and the change of wind speed. Study and analyze the particle size of the dust before entering the dust collector, the collected dust of the cyclone dust collector, and the deposited dust in the opening of by pass in three different experimental periods. It is found that regardless of the amount of captured dust, the particle size distribution in the three positions is almost consistent, if 53µm is used as the benchmark, nearly 85% of the dust particle size collected under the cyclone dust collector is less than 53µm, and the other two are more than 50% at before entering the dust collector and less than 50% at the opening of the by pass. It is confirmed that the air chamber of the cyclone dust collector has the corresponding optimal particle size for collecting dust, and it is not affected by temperature and wind speed, but only has a relationship with the particle size of the dust.
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