Inherently Safer Design , Risk Assesment and Management for Manufacturing Processes of Primary Explosives - Case Study of Dextrinated Lead Azide
|關鍵字:||起爆劑;疊氮化鉛;風險評估;Primary explosives;Lead azide;Risk assessment|
Primary explosive is acting as an initiator of the explosive chain reaction. With the sentitive nature, it is easily to cause an accident by unexpected energy. It is critical topic to indentify, assessment and control all of hazard factors through a well designed, planned and managed process in order to prevent an accident. In this work, the process of dextrinated lead azide in the plant of primary explosives of a research institute in Taiwan, was chosen as an example to review the application of inherently safer design, and through the HAZOP methodology, the hazard factors in the processes were identified and assessmented. There are 10 applications concluded from inherently safer design of the process in this work. As HAZOP is used for this work, it showed that ionizing of air can’t be detected real time when drying take a higher risk, it could cause explosion by electrostatic. So, it’s needed to change the dryig design. In others, no major hazards were found at the safety design of the process. However, the major potential risks were found at the safety management, and the safety management measures required to be followed in order to ensure safety equipments acting efficiently. With a checklist of the assessment, all of existing SOPs and JSAs were reviewed accordingly, and the insufficient part in the documents was enforced. The training courses were given to the operators. It is important to execute the well-defined plans of self-checking, maintenance, and calibration.