Application of material flow analysis method in investigation of material evidence in hazardous chemical cases

doi:10.16265/j.cnki.issn1003-3033.2024.11.0279

Abstract

Abstract:

Physical evidence investigation was a necessary means and important link to identify the causes of hazardous chemical incidents. However, the manifestations of hazardous chemical incidents were often explosions and fires, which could easily trigger a domino effect, making physical evidence investigation somewhat difficult. In order to improve the efficiency of on-site inspections and reduce the occurrence of hazardous chemical incidents. MFA method was adopted to conduct on-site intelligence information analysis and explore the application value of MFA theoretical methods in the physical evidence inspection of hazardous chemical incidents based on specific cases. Based on "Jiangsu Xiangshui 3·21 serious Explosion Accident", "Material Flow Analysis Map" and "Hazardous Substance Distribution Map" were drawn for Tianjiayi Chemical Plant, and material flow analysis research was conducted on the involved enterprises. The results indicate that MFA can identify hazardous areas and substances, providing safety protection reference information for on-site inspectors. It can also provide scope and direction for extracting, inspecting, and identifying on-site physical evidence.

Key words: material flow analysis(MFA), hazardous chemical incidents, site inspection, explosion accident, technological process

CLC Number:

X937

LI Guangyao, ZHANG Guannan, ZHOU Zheng, GUO Hongling, ZHU Jun. Application of material flow analysis method in investigation of material evidence in hazardous chemical cases[J]. China Safety Science Journal, 2024, 34(11): 140-145.

Figures/Tables 9

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序号	名称	面积	备注
1	仓库 4个	见备注	仓库1:648 m²;仓库2:1 296 m²; 仓库3:1 296 m²;仓库4:1 296 m²
2	甲类库	720 m²	-
3	1#罐区	2 424 m²	3×1 500 m³立式93%硫酸储罐;1×1 500 m³立式98%硫酸储罐;4×200 m³卧式浓硝酸储罐
4	2#罐区	583 m²	2×25 m³立式二硝基苯储罐;1×25 m³立式间苯二胺储罐;1×25 m³立式甲醇储罐;1×25 m³立式粗间苯二胺储罐;2×15 m³卧式98%硫酸储罐;2×15 m³卧式发烟硫酸储罐;2×12 m³卧式盐酸储罐
5	3#罐区	417 m²	1×50 m³立式均三甲苯储罐;1×50 m³立式对二甲苯储罐;1×50 m³立式硫酸储罐;1×25 m³立式甲醇储罐;1×25 m³立式甲苯储罐;3×50 m³立式甲醇储罐
6	5#罐区	1 761 m²	2×1 500 m³立式苯储罐;1×1 500 m³立式甲醇储罐
7	6#罐区	129 m²	2×50 m³立式甲醇储罐

序号	名称	危害性	现勘防护建议
1	甲醇	易燃、剧毒、易挥发	眼防护:化学安全防护镜呼吸防护:过滤式防毒面具防护服:防渗透、防静电手脚防护:防渗透现场严禁明火、吸烟
2	苯	易燃、高毒、易挥发
3	浓硝酸	强腐蚀性
4	浓硫酸	强腐蚀性
5	硝基苯系物	爆炸物
6	苯二胺类	有毒
7	其他	—