摘  要：依据课题指定的锅炉额定蒸发量--600t/h，进行锅炉类型的选择；选择燃烧煤的种类，再依据锅炉和燃烧煤的已知参数（选煤各成分含量，锅炉热效率，国家火力发电厂锅炉烟气的排放标准值--30mg/m3等）逐步推算出烟气量和除尘效率等；本次课题选择的是电除尘器，设计并计算出合理的电除尘器的结构尺寸并利用画图软件画出结构图；根据烟气和管道的参数来确定管道的直径大小；设计烟囱的高度，并计算出烟囱的出口内径及其底部直径；确定引风机类型。32345
毕业论文关键词：燃煤锅炉；烟气除尘系统；电除尘器
The Design of Flue Gas Dust-removal System for 600 t/h Coal-fired Boiler
Abstract:Boiler type was selected on the basis of the given evaporation boiler--600t/h.The type of the coal was chosen.Then the amount of flue gas and dust removal efficiency were calculated according to the parameters of boiler and coal （calorific value, element content and ash of the coal,the thermal efficiency of the boiler, and emission standard of boiler flue gas--30mg/m3). The type of dust collector was determined for electric precipitator in this subject.Electrical precipitator dimensions were designed and the diagrams were drawn with drawing software. The diameter of the pipeline was determined in the light of the parameters of flue gas and pipeline.Chimney height was selected.Then inner and bottom outlet diameter were calculated. The model of the fan was selected .
 Keywords: coal burning boiler; flue gas dedusting system; electric precipitator
目录
1引言    1
1.1概述    1
1.2燃煤烟气粉尘的类型、特征与危害    1
       1.2.1粉尘的类型    1
       1.2.2粉尘的特征    2
       1.2.3粉尘的危害    2
1.3本课题目前的研究状况及水平    2
2设计步骤和锅炉与煤的选择    3
2.1设计的步骤    3
2.2锅炉的选择    3
2.3设计参数与指标    3
3除尘设备的选择    5
3.1除尘器选择因素    5
3.2常见除尘器的比较及除尘器的确定    5
4电除尘器及其他设备的设计    6
4.1耗煤量、烟气量及含尘浓度的计算    7
4.2电除尘系统工艺流程及设计    9
4.2.1电除尘系统工艺流程    9
4.2.2电除尘器的选型    9
4.3管道的设计    15
    4.3.1管道布置的原则    15
4.3.2管径的确定    15
4.4除尘系统管道阻力的计算    16
    4.4.1沿程阻力损失的计算    16
        4.4.2局部压力损失的计算    16
        4.4.3系统总阻力损失的计算    18
4.5烟囱的设计    18
    4.5.1 烟囱高度的确定    18
        4.5.2烟囱的出口内径D    19
        4.5.3烟囱底部直径的确定    19
4.5.4砖烟囱布置设计的注意项目    20
4.6引风机的选型    20
4.6.1风量的计算    20
4.6.2引风机风压的计算    20
       4.6.3引风机类型的确定    20
5设计图    21
6总结    21 600吨每小时燃煤锅炉烟气除尘系统的设计+CAD图纸:http://www.751com.cn/huaxue/lunwen_28873.html