某电厂除尘脱硫培训教材

目录

目 录

第1章 静电除尘器.......................................................................................................7 1.1 1.2 1.2.1 1.2.2 1.2.3 1.3 1.4 1.4.1 1.4.2 1.4.3 1.5 1.5.1 1.5.2 1.6

除尘机理...........................................................................................................7 结构特点...........................................................................................................9 电除尘器本体.................................................................................................10 除尘器电气系统.............................................................................................13 除尘效率.........................................................................................................14 设备规范.........................................................................................................15 启动和停止.....................................................................................................17 除尘设备的启动.............................................................................................17 除尘设备的短期停运.....................................................................................17 设备的长期停运.............................................................................................17 运行维护.........................................................................................................18 运行监视.........................................................................................................18 常规检查保养.................................................................................................18 故障处理.........................................................................................................19

第2章 飞灰输送系统.................................................................................................21 2.1 2.2 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.4 2.5 2.5.1 2.5.2 2.5.3 2.5.4 2.6 2.6.1 2.6.2

概述.................................................................................................................21 系统流程.........................................................................................................21 主要设备.........................................................................................................22 仓泵.................................................................................................................22 压缩空气设备.................................................................................................26 气化风机.........................................................................................................38 灰库.................................................................................................................39 设备规范.........................................................................................................40 运行维护.........................................................................................................42 浓相MD泵....................................................................................................42 浓相小MD泵................................................................................................44 气化风机及电加热启停.................................................................................46 空压机的启停.................................................................................................46 故障处理.........................................................................................................47 故障原因与消除.............................................................................................47 空气压缩机故障与处理.................................................................................48

第3章 卸灰系统.........................................................................................................49 3.1 3.1.1 3.1.2 3.2 3.3 3.3.1 3.3.2

概述.................................................................................................................49 干卸灰.............................................................................................................49 湿卸灰.............................................................................................................49 设备规范.........................................................................................................49 运行维.............................................................................................................50 干卸灰的启停.................................................................................................50 湿卸灰系统的启动.........................................................................................50

第4章 灰浆输送系统.................................................................................................51

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除灰脱硫培训教材（D）版

4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.3 4.3.1 4.3.2 设备规范.........................................................................................................51 柱塞泵.............................................................................................................51 高压清洗水泵.................................................................................................53 喂料泵.............................................................................................................53 运行维护.........................................................................................................54 启动前检查.....................................................................................................54 启动操作步骤.................................................................................................55 运行检查与维护.............................................................................................55 灰浆输送系统的停止.....................................................................................55 故障及处理.....................................................................................................55 输灰管道堵塞.................................................................................................55 输灰管线结垢.................................................................................................55

第5章 除渣系统.........................................................................................................57 5.1 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.3 5.3.1 5.3.2 5.3.3 5.3.4

系统流程.........................................................................................................57 设备规范.........................................................................................................57 刮板捞渣机.....................................................................................................57 渣仓.................................................................................................................61 高效浓缩机.....................................................................................................62 除灰渣杂项泵.................................................................................................64 运行维护.........................................................................................................65 捞渣机启动前的检查.....................................................................................65 捞渣机运行中检查.........................................................................................65 链条的截取和更换.........................................................................................65 捞渣机异常运行及处理.................................................................................66

第6章 除灰渣PLC网络控制系统...........................................................................67 6.1 概述.................................................................................................................67 6.2 监控范围.........................................................................................................67 6.2.1 上位机操作站及网络部分.............................................................................67 6.2.2 操作员站的基本功能.....................................................................................68 6.2.3 工程师站的基本功能.....................................................................................68 6.2.4 服务器的基本功能.........................................................................................68 6.3 控制系统技术.................................................................................................70 6.3.1 系统配置.........................................................................................................71 6.3.2 可编程序控制器（PLC）设备规范..............................................................71 6.3.3 PLC的成套范围和功能.................................................................................71 6.4 技术规范.........................................................................................................73 6.4.1 就地仪表和控制设备.....................................................................................73 6.4.2 检测元件.........................................................................................................73 6.4.3 控制盘箱柜.....................................................................................................75 6.5 灰系统上层监控网络仪表和控制设备规范.................................................75 第7章 烟气脱硫系统.................................................................................................78 7.1

湿法石灰石/石膏脱硫....................................................................................78

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目录

7.1.1 吸收过程中的气液平衡.................................................................................78 7.1.2 湿法脱硫的类型及应用.................................................................................83 7.1.3 存在的问题及解决.........................................................................................84 7.2 湿法脱硫系统流程.........................................................................................87 7.2.1 FGD流程简述................................................................................................87 第8章 吸收塔本体及烟气系统.................................................................................90 8.1 8.1.1 8.1.2 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 8.2.6 8.3 8.3.1 8.4 8.4.1 8.4.2 8.5 8.5.1 8.5.2 8.5.3

本体.................................................................................................................90 技术特点.........................................................................................................90 选材及防腐.....................................................................................................91 设备规范.........................................................................................................92 托盘.................................................................................................................92 喷淋层及喷嘴.................................................................................................92 除雾器.............................................................................................................92 浆液循环泵.....................................................................................................92 氧化风机.........................................................................................................93 吸收塔搅拌器.................................................................................................94 烟气系统.........................................................................................................94 主要设备.........................................................................................................94 运行方式与控制.............................................................................................96 脱硫装置运行方式.........................................................................................96 正常运行控制.................................................................................................96 启停与检查.....................................................................................................99 吸收塔系统的启动.........................................................................................99 吸收塔系统的运行检查...............................................................................100 吸收塔系统的停机.......................................................................................101

第9章 石灰石卸料及浆液制备系统.......................................................................105 9.1 系统流程.......................................................................................................105 9.2 系统设备.......................................................................................................105 9.2.1 卸料斗...........................................................................................................105 9.2.2 石灰石贮仓...................................................................................................105 9.2.3 石灰石输送机...............................................................................................106 9.2.4 湿式球磨机...................................................................................................106 9.2.5 皮带称重给料机...........................................................................................107 9.2.6 水力旋流器...................................................................................................107 9.2.7 泵、箱和搅拌器...........................................................................................108 9.2.8 管道系统.......................................................................................................108 9.2.9 NZM-01型密度式浓度计............................................................................109 9.3 运行维护.......................................................................................................110 9.3.1 湿磨运行维护及故障处理...........................................................................110 第10章 石膏脱水系统...............................................................................................112 10.1 10.2

系统流程.......................................................................................................112 系统概述 ...............................................................................................112

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