一、概述热电厂一般地处供热中心,环境保护要求高,烟气排放有严格规定,故各单位对消烟尘都很重视。目前小型热电厂除选用效率较高除尘器外,最广泛的是采用二次风强化燃烧来达到消烟除尘目的。利用空气二次风和蒸汽二次风同样可以达到较满意消烟除尘的效果。但有些厂因喷嘴角度安装位置不正确,风速风量不够而引起空气二次风除尘效果不佳。从理论上讲无论是采用空气二次风还是蒸汽二次风其效果好坏,主要看二次风与炉排 First, an overview Thermal power plants are generally located in the heating center, environmental protection requirements, there are strict regulations on the emission of flue gas, so all units attach great importance to the elimination of dust. At present, small heat and power plants, except for the use of high efficiency dust remover, the most widespread use of secondary air to enhance combustion to achieve the purpose of smoke and dust. The use of secondary air and steam secondary air can also be more satisfactory smoke and dust removal effect. However, some factories because of the nozzle angle installation location is not correct, the wind speed is not enough air caused by secondary air dust removal effect is poor. In theory, whether it is the use of air secondary air or steam secondary air its effect is good or bad, mainly to see the secondary air and grate