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每小时610吨燃煤系统锅炉烟气的除尘系统设计

时间:2019-08-13 12:42来源:毕业论文
通过此设计对烟气排放的规定量来计算除尘器的除尘效率,按照除尘效率以及各方面的优缺点来选择适合的除尘器,设计除尘器的电场通道数、电场宽度、电场高度、集尘面积等

摘  要:通过给定的锅炉蒸发量,查阅资料来计算锅炉所需煤量、进而得出排烟量以及烟气的含尘溶度;然后再通过此设计对烟气排放的规定量来计算除尘器的除尘效率,按照除尘效率以及各方面的优缺点来选择适合的除尘器,设计除尘器的电场通道数、电场宽度、电场高度、集尘面积等;遵守合理布置管道与管径的准则,确定如何布置除尘器管道与管径;根据已知的锅炉的总蒸发量与大气污染物的排放标准来设计烟囱的高度,再通过烟气量的大小与出口烟气的流速来设计烟囱的底部直径与出口内径;根据除尘系统的阻力损失得出引风机的风压和分量,从而选择符合要求的引风机型号。38393
毕业论文关键词:燃煤锅炉、电除尘器、烟气除尘系统
The Design of Flue Gas Dust-removal System for 610t/h Coal-fired Boiler
Abstract:. Through a given evaporation boiler, access to information needed to calculate the amount of coal boiler, and then come to the amount of smoke and dust flue gas solubility; and then through the design of a predetermined amount of flue gas emissions to calculate the filter the collection efficiency, according to the advantages and disadvantages of the various aspects of the collection efficiency and to select the appropriate filter,Design precipitator field number of channels, field width, field height, dust collection area, etc.; Comply with reasonable layout guidelines diameter pipeline and to determine how to arrange filter pipe and tube diameter; emission standards according to the known total evaporation of the boiler with atmospheric pollutants to the design height of the chimney, and then by the size of the flue gas volume the flow rate of the flue gas outlet to design a base diameter and the inner diameter of the chimney outlet; draw induced draft fan pressure and weight in order to select the model to meet the requirements of the induced draft fan dust removal system based on pressure loss.
Keywords: coal-fired boiler ; electric dust catcher;flue gas dust-removal system
目录
摘  要:    I
1 引言    3
1.1概述    3
1.2燃煤锅炉烟气粉尘的特性与危害    3
1.2.1 粉尘的来源及性质    3
1.2.2 粉尘的危害    4
1.3本课题目前的研究状况及水平    4
2 设计说明    5
2.1设计研究内容    5
2.2锅炉设计参数与选择    6
3 除尘设备的概述    7
3.1生活中常见的除尘器    7
3.2除尘器的性能指标    9
3.3 除尘方案的初步制定    9
4 除尘及辅助设备设计与选型    10
4.1耗煤量、烟气量及含尘浓度的计算    10
4.1.1耗煤量    10
4.1.2 燃煤锅炉排烟量的计算    10
4.1.3烟气含尘浓度    12
4.2除尘系统工艺流程设计    12
4.2.1除尘器的确定    12
4.2.2工艺流程描述    13
4.3电除尘器的设计    14
4.3.1电除尘器的分类与确定    14
4.3.2电除尘器的参数设计及其计算    14
4.4除尘系统的管道布置与管径的确定    19
4.4.1 各装置及管道布置的原则    19
4.4.2 管径的确定    19
4.5烟囱的设计    20
4.6除尘系统阻力的计算    21
4.6.1 沿程摩擦阻力损失    21
4.6.2局部压损计算    22
4.6.3 系统总阻力损失    23
4.7风机选型    24 每小时610吨燃煤系统锅炉烟气的除尘系统设计:http://www.751com.cn/huaxue/lunwen_37363.html
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