1. Treatment method
When a converter collapse accident occurs, first check whether the operator is scalded and provide timely rescue, and then confirm the cause of the collapse:
(1) When the new converter furnace collapses, we need to respond quickly and orderly. First of all, the molten steel in the furnace must be poured into the prepared ladle immediately and safely to prevent leakage of molten steel from causing greater safety accidents. Subsequently, we need to conduct a detailed inspection of the specific conditions and locations of the collapsed furnace in order to accurately assess the severity of the collapsed furnace. If it is found that the collapsed furnace area is large and the furnace lining is seriously damaged, unfortunately, the furnace lining may be beyond repair and can only be scrapped and rebuilt. During this process, careful observation of details and strict compliance with safety regulations are crucial to ensure the safety of personnel and equipment while minimizing production losses.
(2) The treatment methods for furnace collapse accidents caused during converter repair are as follows:
1) After a converter collapse event, the waste generated by the collapse is usually mixed into the slag. Therefore, after the tapping operation is completed, we must pay special attention to the thorough cleaning of the slag. This step is crucial because it is not only related to the quality of the next batch of molten steel, but also directly affects the service life and safety performance of the converter. During the cleaning process, it should be ensured that all slag containing collapsed charge is completely removed to maintain the stability and efficiency of the entire smelting process. Through rigorous and meticulous slag cleaning work, we can lay a good foundation for subsequent smelting operations.
2) When the converter collapses, the waste generated by the collapse will be mixed into the slag, which may increase the content of non-metallic inclusions in the molten steel. In order to ensure the purity and quality of molten steel, we must make corresponding adjustments to the smelting plan. This adjustment aims to minimize the content of non-metallic inclusions in molten steel by optimizing key parameters such as temperature, time and raw material ratio during the smelting process. Through scientific and reasonable smelting plan adjustments, we can ensure that the steel produced has excellent mechanical properties and corrosion resistance, thereby meeting various high-standard application requirements.
3) Due to the collapse of the converter, the furnace lining was severely damaged. Therefore, after tapping, we must re-repair the damaged lining area. This process requires professional technology and meticulous operations to ensure that the furnace repair materials can be tightly integrated with the original furnace lining to form a complete and durable furnace lining structure. The purpose of repairing the furnace is to restore the normal function of the converter, increase its service life, and ensure the safety and stability of the subsequent smelting process. We will use high-quality furnace repairing materials and strictly follow operating procedures to ensure the best furnace repairing effect.
2. Things to note when dealing with furnace collapse accidents
(1) During the operation of the converter, we must be highly vigilant and take effective measures to prevent furnace collapse accidents. First of all, the operator should ensure that the standing position is safe and reserve an escape route so that he can evacuate quickly in an emergency. Secondly, at the critical moments of slag pouring and steel tapping, safety regulations must be strictly followed to ensure that no one is standing in front of the furnace mouth to prevent accidents. In addition, sampling and temperature measurement operations can only be carried out after the furnace is shaken smoothly to a horizontal position. When performing these operations, personnel should stand on both sides of the furnace door and maintain fast and accurate operating movements. At the same time, operators must remain highly alert. Once any abnormality is discovered, they should immediately move to both sides to ensure personal safety. By strictly adhering to these operating procedures, we can minimize safety risks during converter operation.
(2) During the first furnace smelting process after converter repair, we must attach great importance to safety issues. In order to ensure personnel safety, "warning signs" should be set up in prominent locations to clearly mark dangerous areas to warn staff to avoid approaching. At the same time, all relevant personnel should follow safety procedures, take detours, and actively stay away from potentially dangerous areas. Such measures are not only responsible for personal life safety, but also an important guarantee to ensure the smooth progress of the smelting process. By strictly adhering to these safety guidelines, we can effectively reduce the risk of accidents and protect the safety of every worker.
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