沥青旋转窑炉的烟气治理

Smoke Treatment of the Asphalt Rotating Furnace

沥青旋转窑炉是把沥青加热到40～60℃后,沥青变为稀稠状和石料混匀成为沥青路面混合料的一种工业窑炉,其主要污染物为未完全燃烧的柴油烟气。为了使污染物达标排放,工程实践中采用了XCX-Ⅰ型(0.5t)反旋风除尘器。在进口烟气流量为2095m3/h、温度148℃、含尘浓度612mg/m3、林格曼黑度3级的条件下,经系统处理后,出口烟气温度65℃、含尘浓度为25mg/m3,林格曼黑度为0～1级,达到国家二类区烟尘排放标准,实际除尘效率达96%。

Asphalt rotating furnace is one of industrial furnaces, in which the asphalt is melted after heated to 40～60 ℃ and then completely mixed with stone for use as road surface material, its main pollutant is the smoke resulting from diesel oil which wasn't combusted completely. In order to reach the national discharge standard of air pollutant, the XCX-I type (0.5T) anti-vortex dust-remover was adopted in practice. When the inlet smoke flow rate, temperature, concentration and Greenman blackness are 2 095 m^3/h, 148 ℃, 612 mg/m^3 and class three respectively, the outlet smoke temperature, concentration and Greenman blackness are 65 ℃,25 mg/m^3 and class zero to one respectively after treated by the anti-vortex dust-remover system, and the actual dust removing efficiency is 96%.This complies with the national dust discharge standard for class two zone