Safety hazards in steel production under capacity expansion

The South Steel Water Outflow Accident is one of the most fatal accidents in steel mill accidents in recent years. It has been defined as a major production safety accident by the preliminary analysis of the accident investigation team established in Jiangsu Province. Many professionals in the steel industry pointed out to reporters that in the domestic industrial field, safety accidents often occur in the coal mine field, and the public does not know much about the accidents in the steel industry. In fact, in the steel production process, there are also A variety of security risks, especially in the context of the rapid expansion of steel production capacity in recent years, the elimination of backward production capacity and the weak progress. Disproportionate expansion of production capacity. Although the voice of overcapacity and backward elimination has been called for many years, the steel output of China's steel industry is still increasing. The disorderly capacity expansion is reducing the profits of steel mills, while the low end. Steel companies with low production capacity and equipment technology also have various safety hazards. JIA group vice president of Shanghai Steel Union Co., Ltd. e-commerce and chief analyst told reporters, with advances in technology, as well as measures to improve the protection of steel production now occurs in the frequency of major accidents has been greatly improved than before, The accidents are mainly concentrated in the ironmaking and steelmaking process before rolling, in addition to the outflow of molten iron, including blast furnace collapse and gas leakage leading to poisoning. It is worth noting that just in January last year, the steel industry had issued two vicious accidents. One of the Hebei private steel enterprises Wu'an Puyang Iron and Steel Company's No. 2 converter gas pipeline suffered a gas leak during the construction process, causing 16 workers to be poisoned by gas, of which 7 died. On the same day, two workers of the first steel-making plant of Dalian Special Steel Co., Ltd., a state-owned steel enterprise of Northeast Special Steel Group, fainted due to “nitrogen suffocation”, and six workers went on rescue and fainted to the ground. Eight people were rescued. death. As early as 2007, Liaoning Tieling Qinghe Special Steel Co., Ltd. also lost 32 people due to the falling of ladle. Steel expert Xu Zhongbo also said that in recent years, the safety accidents of the steel industry have mainly focused on the stage of resumption of production and expansion of enterprises, among which private enterprises are mostly. Because new employees are generally recruited during the resumption of production and expansion, and new employees lack proficiency in equipment operation, and have no experience in equipment inspection and maintenance. "If you do routine maintenance and start the corresponding safety measures in an emergency, many accidents can be completely avoided." A lawyer pointed out to reporters that for major accidents in the metallurgical industry, it is impossible to investigate the responsibility afterwards. With the sporty rectification, it is more important to reshape the safety supervision system of the metallurgical industry and make up for the lack of safety management from the legal system. The elimination of backward production capacity is not smooth. An internal high-level of Nangang told this reporter that the No. 5 blast furnace has been used for more than ten years since the ignition was put into production. In addition to No. 5 blast furnace, Nangang has four similar blast furnaces. The ignition time of the small blast furnace was earlier than that of the No. 5 blast furnace, and many of them had been overhauled. In the domestic steel industry, there are many small blast furnaces similar to the size of No. 5 blast furnace, and they are not planned to be eliminated like Nangang. Just in July of this year, the Ministry of Industry and Information Technology announced a list of new iron-making enterprises that eliminated backward production capacity in 2011, requiring the national iron-making capacity to be eliminated by 31.22 million tons, and these production capacity is mainly small with a volume below 450 cubic meters. blast furnace. “Because of the high temperature, the blast furnace ironmaking link is relatively easy to cause accidents, and it is listed as a blast furnace within the scope of the country's elimination of backward production capacity. Generally, the service time is longer, and it is more careful in operation. From this point of view, the promotion of the elimination of backward production capacity is not only a requirement for energy conservation and environmental protection, but also contributes to safer production.” Jia Liangqun pointed out to this reporter. However, the current progress in eliminating backward production capacity in China is not smooth. A recent report issued by the Ministry of Industry and Information Technology and the National Development and Reform Commission pointed out that the current situation of energy conservation and emission reduction and elimination of backward production capacity is very serious. The progress of eliminating backward production capacity and meeting the requirements of the annual target are eliminated. There are gaps, and the tasks of the last few months are more difficult. In this regard, an industry insider analyzed the reporters. In the list of enterprises that have been eliminated from the state, private enterprises account for the majority. Private enterprises mainly produce long products such as construction steel. This year's long products market is mainly produced by state-owned enterprises. More rich and profitable, which creates a contradiction between the backward elimination of the administrative level and the real demand of the market, and these blast furnaces that have long been eliminated should still be used if they are stimulated by economic benefits, and even reluctant to invest in maintenance and Overhaul will have great security risks.  

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