氨法脱硫工艺

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化工原理课程设计

设计题目：氨法脱硫工艺路线设计

指导教师：陈爱兵 班 级：制药112班

组 长：孙晓庆

小组成员：刘利华、刘思佳、刘圆圆、

齐贺军、石阔、樊世昊

完成日期：2014年6月4日

精选 人员分工

姓名 学号 负责领域

刘利华 110102219 产品后处理、经济预算、制图

刘思佳 110102220 烟囱与人梯的设置、制图、文字排版

刘圆圆 110102221 经济预算、吸收塔尺寸及有关计算、设计说明

齐贺军 110102222 封头及裙座设计计算、制图、设计说明

石阔 110102223 管道的选型及其计算、保温层设计

孙晓庆 110102224 吸收塔尺寸及有关计算、制图、设计说明

樊世昊 110303103 风机及泵计算与选型 前 言

I 前 言

随着含硫燃料燃烧产生的SO2对环境的危害增大，氨法烟气脱硫工艺越来越受重视。本设计是采用氨做吸收剂除去烟气中的SO2，属于气液相反应，反应速率快，吸收剂利用率高，能保持脱硫效率95-99%，且无二次污染。氨在水中的溶解度超过20%。1995年氨法技术作为国家重点科技攻关项目列入“十五”863计划。

氨法脱硫副产品硫胺是一种性能优良的氮肥，适合我国农业大国的国情。氨回收法脱硫技术是拥有我国自主知识产权的脱硫技术，因而投资更少、从长远角度更有利于在我国长期和全面的推广。

With ulfur fuel combustions increase resulting in SO2 harm to the environent

serious, ammonia flue gas desulfurization process is being payed more and more

attention,.the process uses ammonia in the flue gas to absorb SO2, belongs to the gas

phase reaction, the reaction rate is fast and the absorbent utilization is high, 95-99%

desulfurization efficiency can be maintained, and no secondary pollution. Ammonia

solubility in water is more than 20%. 1995 ammonia technology as a key national

scientific and technological project is contained in the "15th" 863 plan.

Thiamine ammonia desulfurization by product is an excellent nitrogen fertilizer,

suitable for China's national conditions of agricultural country. Ammonia Recovery

Act desulfurization technology is to have our own intellectual property, and therefore

factories can pay less investment and in long-term perspective, it is more conducive

and worth comprehensive promotion.

前 言

II 目 录

前 言..................................................................................................................... I

目 录................................................................................................................... II

第一章 设计概论................................................................................................ 1

1.1 产品现状............................................................................................... 1

1.2 设计概况............................................................................................... 1

1.3 编制依据............................................................................................... 1

1.4 可行性分析........................................................................................... 2

第二章 脱硫技术介绍........................................................................................ 4

2.1 脱硫技术原理与工艺路线................................................................... 4

2.1.1 技术原理.................................................................................... 4

2.1.2 工艺路线.................................................................................... 5

2.2 喷淋塔概况........................................................................................... 5

2.2.1 喷淋塔基本结构........................................................................ 5

2.2.2 流向选择.................................................................................... 6

2.2.3 吸收剂的选择............................................................................ 7

2.3 副产品后处理过程............................................................................... 7

第三章 塔设备计算说明.................................................................................... 8

3.1 物料衡算............................................................................................... 8

3.2 塔内烟气流速..................................................................................... 10

3.3 塔内标准状态下烟气量..................................................................... 10

3.4 喷淋塔设计......................................................................................... 11

3.4.1 喷淋塔塔高.............................................................................. 11

3.4.2 喷淋塔的壁厚.......................................................................... 16

3.4.3 喷淋塔的塔径.......................................................................... 17

3.4.4 喷淋塔喷淋层.......................................................................... 18

3.5 保温层的设计..................................................................................... 19

3.6 手孔、人孔的设计............................................................................. 21

3.7 吸收塔封头的选择跟计算......................................................................... 21