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课 程 设 计

题目：水泥厂配料车间粉尘污染治理工程（课程）设计

课程名称 大气污染控制工程 学生学院 环境科学与工程学院 专业班级 环境工程班 学 号 学生姓名 指导教师

2013 年 6 月

Contents

课程设计题目要求··················································· 2

一、概述····························································3

二、粉尘来源与危害·················································3

2.1水泥厂粉尘源················································3 2.2水泥厂粉尘的特点············································4 2.3水泥生产作业粉尘危害········································4

三、集气罩工艺计算·················································6

3.1集气罩的设计················································6 3.2抽尘罩罩口断面速度的确定····································7 3.3密闭罩中的最小负压值········································7 3.4总风量计算··················································7

四、旋风除尘器的选型与计算·········································8

4.1旋风除尘器的分类············································8 4.2旋风除尘器选型计算··········································8 4.3 旋风除尘器除尘效率·········································10 4.4二级除尘器的选型设计········································11 五、除尘系统管道设计及管道压力计算·································12

5.1除尘管道系统设计···········································12 5.2管径和管道压力损失计算·····································12 5.3各管道计算管径和摩擦压力损失·······························12 5.4管道计算总表···············································16 5.5电机风机的选型·············································16 5.6排气筒·····················································16

六、总结···································································16

七、参考文献·······························································17

课程设计题目要求

题目:水泥厂配料车间粉尘污染治理工程(课程)设计

1. 设计基础资料

? 计量皮带宽度:450mm ? 配料皮带宽度:700mm ? 皮带转换落差:500mm ? 立轴破碎机：直径1200mm

? 设粉尘收集后,粉尘浓度为2000mg/m3,粉尘的粒径分布如下表.

粒径间隔/μm 质量频率/% <10 10~20 20~30 30~40 >40 25 25 20 20 10 2. 设计要求

? 排放浓度小于50 mg/m3

? 设计二级除尘系统,第一级为旋风除尘器,第二级为电除尘器或者袋式除尘

器.

? 计算旋风除尘器的分级除尘效率和除尘系统的总效率. ? 选择风机和电机 ? 绘制除尘系统平面布置图 ? 绘制除尘器本体结构图 ? 编制设计说明书.