How to identify major hazard sources in the production process
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For example, in chemical manufacturing, 48 tons of ammonia are consumed per hour, while the critical amount of ammonia is 10 tons; however, these 10 tons refer to the storage volume. How can it be determined whether this constitutes a major hazard source? The instantaneous storage amount of ammonia consumed per hour is actually very small, and it does not constitute a significant hazard.
48 tons of ammonia are consumed per hour – where does this ammonia raw material come from? ? ? The on-site storage volume is very small; is it compatible with the production process? ? Please be more specific! !
Calculated based on the values in GB18218; actual stock/critical amount > 1
Besides learning to calculate by oneself. Hazardous sources of major significance require reports to be prepared by intermediary agencies, which must then be filed with the safety supervision authorities.
Could you describe it in more detail? For example, what other materials are used in the production process, and what are the safety distances between the factory premises and surrounding buildings and facilities?
According to the provisions of GB18218, the online quantity should be calculated during the production process! :(:)
Thank you all. Perhaps I didn’t explain myself clearly enough: fertilizer plants have two sets of units, an ammonia synthesis unit and a urea synthesis unit. According to regulations, the synthesis units are classified as major hazard sources. The ammonia used in the urea production unit is transported via pipelines to the urea production area, where its storage volume is very small; once it enters that area, it reacts with carbon dioxide to form ammonium carbamate. The storage of this substance mainly takes place in the pipelines. The critical amount for ammonia is 10 tons, while other substances do not fall under the category of hazardous materials as defined by GB18218. Therefore, the urea plant should not be considered a major hazard source.