脱硫车间初步设计说明书

摘 要

本设计为300万t/a焦炭焦化厂脱硫车间初步设计，采用的煤气脱硫方法为湿法脱硫的改良ADA法。本设计的目的是脱除焦炉煤气中的硫化氢，使硫化氢的浓度达到20mg/m3以下，同时要使生产出来的煤气各项指标满足要求，达到符合国家标准化工厂生产设计要求。本设计分为工艺部分和非工艺部分，工艺部分包括煤气净化,脱硫液再生及硫磺的回收，净化装置采用了脱硫塔，选用了四个脱硫塔并联同时工作，脱硫塔的塔径为3800mm，塔高为17800mm。再生部分采用了再生塔及其他一些辅助设备，再生塔的塔径为7400mm，塔高为51000mm。回收硫部分采用了戈尔膜过滤器。非工艺部分包括土建，供气，供电，采暖与通风，蒸汽与压缩空气，仪表及自动化，设备维修，环保，经济核算等。共绘制了3张图纸，分别为脱硫塔的设备图，设备布置图和工艺流程图。

关键词 焦炉煤气 脱硫 改良ADA法

I

Abstract

The design of 3 million t/a preliminary design of coke plant desulfurization section, gas desulfurization methods for the improvement of wet desulphurization ADA law. The main task of this design is removing the hydrogen sulfide in coke oven gas, at the same time to produce the indicators meet the requirements of gas, to comply with national standard chemical plant production design requirements. This design is divided into parts and the process technology, process consists of gas purification, desulfurization of liquid regeneration and sulfur recovery and purification device adopts the desulfurization tower, chose four parallel work at the same time, the desulfurization tower desulfurization tower of the tower diameter is 3800 mm, height is 17800 mm. Regeneration part adopts the regenerator and other auxiliary equipment, the regeneration tower the tower diameter is 7400 mm, height is 66000 mm. Sulfur recycle part adopts the gore membrane filter. The process consists of civil engineering, gas supply, power supply, heating and ventilation, steam and compressed air, instrumentation and automation, equipment maintenance, environmental and economic accounting, etc. Three A0 drawings were drawn and desulfurization equipment figure, respectively, the factory layout and process flow diagram.

Keywords coke oven gas desulfurization method of modified ADA

II

目 录

摘要 .............................................................................................................................................. I Abstract ..................................................................................................................................... II

第1章 绪 论 ......................................................................................................................... 1 1.1 设计的任务及要求 ........................................ 1 1.2 硫化氢的性质 ........................................... 2 1.3 脱硫的目的和意义 ....................................... 2 1.4 产品的组成和成分及物性参数 ............................. 3 1.5 厂址选择 ............................................... 4 1.5.1 地理条件 ........................................... 4 1.5.2矿产资源 ............................................. 4 1.5.3供水条件 ............................................. 4 1.5.4经济条件 ............................................. 4 1.5.5气候条件 ............................................. 5 第2章 工艺论证 .................................................................................................................... 6 2.1 工艺路线论证 ........................................... 6 2.1.1 干法脱硫 ........................................... 6

2.1.2 湿法脱硫 ........................................... 7

2.2 脱硫方法的选择 ........................................ 15 第3章 改良ADA法脱硫工艺详述 .................................. 18 3.1 改良ADA法生产原理原料和产品 ......................... 18

3.1.1 生产原理 .......................................... 18 3.1.2 原料和产品 ........................................ 19

3.2 改良ADA法脱硫工艺流程 ............................... 20

3.2.1 工艺简述 .......................................... 20 3.2.2 工艺要点 .......................................... 20 3.2.3 操作制度 .......................................... 21

第4章 主要设备的选型及计算 ..................................... 23 4.1 主要设计参数 .......................................... 23 4.2 原材料的消耗 .......................................... 23 4.3 物料平衡计算 .......................................... 24

III

4.4 热量衡算 .............................................. 26 4.5 脱硫塔的计算 .......................................... 26 4.5.1 塔径的计算 ........................................ 26

4.5.2 填料层高度计算 .................................... 28

4.6 再生塔的计算 .......................................... 29

4.6.1 再生塔计算要求 .................................... 29 4.6.2 再生塔计算 ........................................ 29 4.6.3 反应槽的计算 ...................................... 31 4.6.4 事故槽的计算 ...................................... 31 4.6.5 循环泵的计算 ...................................... 31 4.6.6 硫泡沫槽的计算 .................................... 33 4.6.7 通风机的选取 ...................................... 34 4.6.8 戈尔膜选取 ........................................ 34

4.7 辅助设备的选型 ........................................ 35

4.7.1 液体喷淋装置 ...................................... 35 4.7.2 液体在分布器 ...................................... 35 4.7.3 填料支撑板 ........................................ 36 4.7.4 封头 .............................................. 36 4.7.5 人孔及手孔 ........................................ 36

4.8 设备一览表 ............................................ 37 第5章 非工艺部分说明 .......................................... 39 5.1 公用工程 .............................................. 39

5.1.1 供水 .............................................. 39 5.1.2 供电 .............................................. 39 5.1.3 蒸汽与压缩空气 .................................... 40 5.1.4 采暖与通风 ........................................ 40 5.1.5 土建 .............................................. 40 5.1.6 机修 .............................................. 40 5.1.7 环保 .............................................. 41

5.2 仪表自动化 ............................................ 41 第6章 生产操作及劳动定员 ...................................... 44 6.1 生产操作 .............................................. 44

6.1.1 泵工正常操作 ...................................... 44

6.1.2 泡沫工正常操作 .................................... 45

IV

6.1.3 戈尔膜工正常操作 .................................. 45

6.1.4 各岗位人员的共同职责 .............................. 46

6.2劳动定员 ................................................ 46 第7章 经济核算 ................................................. 48 7.1 编制说明 .............................................. 48 7.2 投资估算 .............................................. 49

7.2.1 建设费用 .......................................... 49 7.2.2 设备费用 .......................................... 49 7.2.3 工具费 ............................................ 50 7.2.4 设备施工管理费 .................................... 50 7.2.5 化验设备费 ........................................ 51 7.2.6 工艺管道和阀门 .................................... 51 7.2.7 仪表费与电气费 .................................... 52 7.2.8 设计费 ............................................ 52 7.2.9 不可预见费 ........................................ 53

7.3 生产成本分析 .......................................... 53

7.3.1 原料费 ............................................ 53 7.3.2 动力消耗 .......................................... 54 7.3.3 工资及附加费 ...................................... 54 7.3.4 工段经费 .......................................... 54

7.4 核算 .................................................. 55 结论 ............................................................. 56

致谢 ...................................................................... 57

参考文献 ......................................................... 58

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