锌冶炼烟气除尘系统工艺设计 - 图文

河北工业大学城市学院 毕业设计说明书

作 者： 高振博 学 号： 053650 学 院： 能源与环境工程学院 系(专业)： 环境工程

题 目： 锌冶炼烟气除尘系统工艺设计

指导者： 黄超 教授

评阅者： 高军凯 讲师

2009年 6 月 10 日

河北工业大学城市学院2009届毕业设计说明书

毕业论文中文摘要

锌冶炼烟气除尘系统工艺设计 摘要： 随着经济的发展,世界由农业型逐步转为工业型，而有色金属的冶炼是工业发展中的一个重要环节。本设计为锌冶炼烟气除尘系统的设计，论述了除尘系统的设计原理及计算方法。本设计以袋式除尘器为主体，基本流程为：锌竖罐→喷淋塔→袋式除尘器→风机→烟囱。冶炼烟气自锌竖罐通过喷淋塔，使烟气的温度由400℃降至180℃，然后利用反吹风袋式除尘器除尘，达到排放要求后，利用风机，由烟囱排出。本系统处理烟气量为18000 m3/h，除尘效率可达96%以上，该系统一次性投资省，运行稳定，动力消耗少，是一种高效且实用的烟气除尘系统。 关键词： 锌冶炼 烟气 喷淋塔 袋式除尘器

河北工业大学城市学院2009届毕业设计说明书

毕业论文外文摘要

Title The design of Particulate Removal System of Zinc Flue Gas Abstract Along with economical development, the world transfers the industry gradually by the agriculture Non-ferrous metal smelting plays an important part in the development of the industry. However, the pollution of dust in metallurgy is also a problem to be solved. The body part of the dust removal system I have designed is fiber filter which is used to remove the dust coming from smelting process such as drying, burning, closeburning, distillation, rectification in zinc container. The temperature of flue gas is declined by 400℃ to 180℃. After attaining the request, it is ejected from the chimney through blower fan. The capacity of the flue gas the system handles is comparable greatly and the collection efficiency reaches 96%. The material of the fiber filter is fiberglass because of the high temperature of flue gas. The advantage of the system is low first investment, circulating stable operation, low motive consumption, etc. This design discusses the principle and the calculation method of the dust collection system, which is a kind of efficiently practical dust collection system. Keywords：zinc smelt flue gas spray tower fiber filter

河北工业大学城市学院2009届毕业设计说明书

目 次

1 绪论 ............................................................................................................................................ 1

1.1 湿法炼锌 .......................................................................................................................... 1 1.2 鼓风炉炼锌 ...................................................................................................................... 2 2 锌冶炼烟气的主要参数 ............................................................................................................ 2

2.1 锌冶炼烟气的来源 .......................................................................................................... 2 2.2 烟气参数 .......................................................................................................................... 3 3 除尘系统工艺流程的选择及配置 ............................................................................................ 3 3.1 除尘流程的分类 .............................................................................................................. 3 3.2 除尘流程的选择依据和原则 .......................................................................................... 3 3.3 该设计所采用工艺流程 .................................................................................................. 5 4 喷淋塔 ........................................................................................................................................ 5

4.1 喷淋塔作用原理 .............................................................................................................. 5 4.2 喷淋塔的结构形式 .......................................................................................................... 6 4.3 喷淋塔的设计计算 .......................................................................................................... 6 4.4 喷嘴 .................................................................................................................................. 8 4.5 喷淋塔阻力损失 ............................................................................................................ 12 5 除尘器的选择及设计 .............................................................................................................. 13

5.1 除尘器的选择 ................................................................................................................ 13 5.2 袋式除尘器 .................................................................................................................... 15 5.3 袋式除尘器的设计计算 ................................................................................................ 22 6 电机与风机 .............................................................................................................................. 24

6.1 风机的基础知识 ............................................................................................................ 24 6.2 风机历史 ........................................................................................................................ 25 6.3 风机的分类 .................................................................................................................... 25 6.4 风机与电机的选择 ........................................................................................................ 25 6.5 风机维护 ........................................................................................................................ 27 6.6 风机运行注意事项 ........................................................................................................ 27 6.7 风机未来发展 ................................................................................................................ 27 7 净化系统中管道设计计算 ...................................................................................................... 27

7.1 管道系统设计要点 .......................................................................................................... 27 7.2 管道系统的设计计算 .................................................................................................... 29 8 烟囱的设计计算 ...................................................................................................................... 31

8.1 烟囱的分类 .................................................................................................................... 31 8.2 烟囱高度与排烟能力的关系 ........................................................................................ 31 8.3 烟囱设计中的几个问题 ................................................................................................ 31

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