一种改进的贮灰场大气环境防护距离的确定方法

Improved Method for Determining Protection Zone of Atmospheric Environment for Ash Storage Field

针对贮灰场常用起尘计算公式计算结果偏差较大的问题,采用某发电厂贮灰场外围实际测量的总悬浮颗粒物浓度反推起尘源强的方法,对贮灰场的起尘量的常用计算公式进行比较分析与评估,推荐一个较准确的贮灰场起尘量计算公式,提出一种改进的贮灰场大气环境防护距离的确定方法。结果表明,推荐的贮灰场起尘计算公式和确定的大气环境防护距离具有较高的准确性和保守性。

In view of the large deviation of dust amount calculated by existing calculation formulas for ash storage field, using the backstepping method of dust source strength f^om actual measured total suspended particles concentration in the periphery of an ash storage field of a certain power station, the calculation formulas of dust source strength for the ash storage field were compared and evaluated. A more accurate calculating formula of dust amount for the ash storage field was recommended. An improved method for determining the protection zone of atmospheric environment for the ash storage field was presented. The results show that the recommended formula and determined protection zone of atmospheric environment have high accuracy and conservation.