AQ 4273-2016
《粉尘爆炸危险场所用除尘系统安全技术规范》
解读
钟圣俊
zhongsj@smm.neu.edu.cn
东北大学工业爆炸及防护研究所
2023年3月28日
目次
1范围...................................................................1
1.1原文................................................................1
1.2条文释义 ............................................................1
1.2.1粉尘爆炸危险场所用除尘系统 ........................................1
1.2.2不适用的粉尘 ....................................................1
1.3问题与建议 ...........................................................1
1.3.1关于本标准是否适用于 ‘‘化工’’的商榷..................................1
1.3.2关于本标准是否适用于粉体收集系统等的说明 ............................2
1.3.3修改建议 ........................................................2
2规范性引用文件 ..........................................................4
2.1原文................................................................4
2.2解读................................................................4
2.3修改意见 ............................................................4
3术语和定义 ..............................................................6
3.1原文................................................................6
3.2如何理解“除尘系统” ..................................................6
3.2.1原文...........................................................6
3.2.2广义的除尘系统 ...................................................6
3.2.3特殊型式的除尘器 .................................................8
3.3如何理解“粉尘爆炸危险场所”？ ..........................................8
3.3.1原文...........................................................8
3.3.2解读...........................................................8
3.4如何理解“防爆装置”？ .................................................9
3.4.1原文...........................................................9
3.4.2解读...........................................................9
3.5修改建议 ............................................................10
3.5.1导言部分 ........................................................10
3.5.2修改术语 ........................................................10
3.5.3增加术语 ........................................................10
4总则...................................................................11
4.1除尘器的选择 .........................................................11
4.1.1原文...........................................................11
4.1.2条文说明 ........................................................11
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《粉尘爆炸危险场所用除尘系统安全技术规范》解读 目次
4.1.3滤筒除尘器是否可以使用？ ..........................................11
4.1.4干式除尘器的选用 .................................................12
4.1.5关于4.1 b)湿式除尘的商榷 ..........................................14
4.1.6关于电除尘器的疑问 ...............................................16
4.1.7木材与木制品加工用除尘器 ..........................................17
4.1.8实施细则 ........................................................18
4.2干式除尘系统爆炸防护 ..................................................18
4.2.1原文...........................................................18
4.2.2释义...........................................................18
4.2.3 NFPA 654关于爆炸防护的规定 .......................................19
4.2.4商榷...........................................................19
4.3除尘器箱体 ...........................................................21
4.4干式除尘器的卸灰与输灰 ................................................22
4.5除尘系统中除尘器的位置 ................................................24
4.6除尘系统共用与互通互联 ................................................26
4.7干式除尘器外来点火源防护 ..............................................27
4.8加工系统与除尘系统控制与联锁 ...........................................28
4.9监测与报警 ...........................................................28
4.10标志与标识 ..........................................................28
5除尘器.................................................................30
5.1干式除尘器 ...........................................................30
5.1.1除尘器防爆 ......................................................30
5.1.2二级除尘 ........................................................30
5.1.3除尘器与风管连接方式 .............................................30
5.1.4袋式除尘器 ......................................................30
5.1.5除尘器清灰要求 ...................................................33
5.1.6锁气卸灰要求 ....................................................35
5.1.7输灰要求 ........................................................35
5.2湿式除尘器 ...........................................................40
5.2.1湿式除尘器与进出风管的连接 ........................................40
5.2.2湿式除尘器的监测与报警 ............................................40
5.2.3湿式除尘器排氢通风、泥浆过滤与清理 .................................41
6吸尘罩及吸尘柜 ..........................................................43
6.1原文................................................................43
6.2解读................................................................43
6.3参考标准 ............................................................43
6.3.1 GB/T 16758《排风罩的分类及技术条件》 ..............................43
6.3.2 GB 50019工业建筑供暖通风与空气调节设计规范 .........................44
6.3.3 NFPA 654可燃固体颗粒防火防爆 .....................................44
东北大学工业爆炸及防护研究所 钟圣俊 zhongsj@smm.neu.edu.cn13072498962 ii
《粉尘爆炸危险场所用除尘系统安全技术规范》解读 目次
7风管...................................................................46
7.1主风管..............................................................46
7.2支风管..............................................................47
7.3关于风管要求的释义 ....................................................48
8风机..................................
《粉尘爆炸危险场所用除尘系统安全技术规范》解读.pdf
