秸秆炉内燃烧烟气排放特性及灰分的养分潜力分析  

Analysis of the emission characteristics of flue gas and nutrient potential of ash in straw furnace

作　　者：张从洋 张波[1] 吴春笃[1] 贾卫东[1] 杨学军[2] 董祥[2] 胡欣康 ZHANG Congyang;ZHANG Bo;WU Chundu;JIA Weidong;YANG Xuejun;DONG Xiang;HU Xinkang(Key Laboratory of Modern Agricultural Equipment and Technology,Ministry of Education,Jiangsu University,Zhenjiang 212013,China;Chinese Academy of Agricultural Mechanization Sciences,Beijing 100020,China)

机构地区：[1]江苏大学现代农业装备与技术教育部重点实验室,镇江212013 [2]中国农业机械化科学研究院,北京100020

出　　处：《上海农业学报》2022年第6期103-107,共5页Acta Agriculturae Shanghai

基　　金：江苏省农业科技自主创新资金项目[CX(19)2042]。

摘　　要：采用自行设计搭建的秸秆燃烧烟气排放测试系统,探讨水稻、小麦和玉米三种典型作物秸秆燃烧时产生烟气的排放特性,同时分析燃烧后秸秆灰分的主要养分利用潜力。结果表明:水稻、小麦和玉米三种秸秆燃烧实时排放的烟气中NO的排放因子分别为1.48 g∕kg、2.18 g∕kg和2.75 g∕kg,NO_(2)的排放因子分别为0.69 g∕kg、0.79 g∕kg和0.57 g∕kg,颗粒物排放因子分别为26.49 g∕kg、25.34 g∕kg和28.26 g∕kg。通过对收集的三种秸秆燃烧后的灰分进行分析,发现其钾的含量分别为4.89%、3.89%和8.00%,钙的含量分别为1.49%、2.41%和1.20%,磷的含量分别为0.75%、0.35%和0.52%。秸秆灰养分理论全量还田可替代约281.6%的钾肥、21.0%的磷肥、34.9%的钙肥,具有良好的可替代化肥潜力。A self-designed and built straw combustion flue gas emission test system was used to explore the real-time flue gas emission characteristics of rice,wheat and corn straw burning.And the main nutrient utilization potential of straw ash after combustion was analyzed.The results showed that the NO emission factors in the flue gas emitted from the burning of three straws of rice,wheat and corn were 1.48 g∕kg,2.18 g∕kg and 2.75 g∕kg,the emission factors of NO_(2) were 0.69 g∕kg,0.79 g∕kg and 0.57 g∕kg,respectively,and the emission factors of particulate matter were respectively 26.49 g∕kg,25.34 g∕kg and 28.26 g∕kg.The potassium contents of three kinds straw were 4.89%,3.89% and 8.00%,calcium contents were 1.49%,2.41% and 1.20%,and phosphorus contents were 0.75%,0.35% and 0.52% respectively.According to the theory of straw ash nutrient,returning the whole amount to the field could replace about 281.6% of potassium fertilizer,21.0% of phosphorus fertilizer and 34.9% of calcium fertilizer,which had a good potential to replace chemical fertilizer.

关 键 词：秸秆 燃烧 排放特性 灰分 潜力 

分 类 号：S141[农业科学—肥料学] X71[农业科学—农业基础科学]