ارزيابي ريسك و ارائه راهكار حمل چدن مذاب از طريق شبكه داخلي ريلي شركت سهامي ذوب‌آهن اصفهان

Today, logistics is one of the most critical aspects of any business. All companies can succeed with logistical support. Supply chain risk management (SCRM) is crucial for identifying and addressing uncertainties and minimizing vulnerability. The main need of Isfahan Steel Company is to use a suitable supply chain and logistics that can meet the countryʹs needs. Due to the large volume of its activities and daily production, this company must receive many raw materials and equipment by railways and railway lines. The blast furnace is the most important part of the Isfahan iron smelting plant. The main purpose of the blast furnace is to produce molten cast iron for the production of steel in the department of steelmaking. The transportation of molten cast iron is in the area of transporting dangerous goods. As a result, the amount of occupational hazards and accidents is increasing. With risk management, you can identify risks, provide solutions to prevent accidents and protect the workforce and assets of the organization. This research aims to identify, eva‎luate, and prioritize the internal rail logistics risks associated with transporting molten cast iron from the blast furnace station to steelmaking, considering the existing problems and risks related to the logistics of the rail transport network of Isfahan Steel Company. First, we identified the risks associated with transporting molten cast iron from the blast furnace to steelmaking using a rail line. Then some the type of questionnairewas designed and compiled to measure risks and weights and was completed by experts. We then ranked these risks using both the traditional and fuzzy FMEA methods. According to the traditional FMEA method, the priority of risks is as follows: supply chain, shipping time delays, rail accidents, human accidents, human resources, productivity, and transporting molten cast iron. In the fuzzy FMEA method, for better conclusions, we calculated the weight of the criteria that the severity of the consequence, the probability of occurrence, and the possibility of discovery were the most important, respectively. Prioritization in the fuzzy method is as follows: transportation time delay; rail accidents; supply chain; human accidents; Transporting molten cast iron; Human resources and productivity. Then, with the help of the AHP method, we checked the validity of FMEA methods. The results of the AHP method indicate that fuzzy FMEA is more accurate and principled. According to fuzzy logic, the transportation time delay has a risk priority number of 0.034, placing it at a high and critical level. The risk of rail accidents is 0.0049, the risk related to the supply chain is 0.0046, and the risk of human accidents is 0.0033, all of which are at an average level. The findings of the research highlight the importance of implementing strategies to address these risks.

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