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    On the morning of September 24, the key employees of Haiger Company under the leadership of general manager Bi Zhenyong observed and studied the construction site of the Yangtze River Steel Plant, and listened to the director Xia's talk about the situation and work practices of the Yangtze River Steel Plant in the conference room (see picture).  
    1 electrician   Requirements: age 45 or younger, college degree or above, major in mechatronics, work experience is preferred, and good health is required.   Tel: 0379-63763526  
    During the Ching Ming Festival, the company organized outstanding party members and cadres to Yan'an to participate in the red learning tour. During the Ching Ming Festival, April 5-7, 2018, the company organized outstanding party members and cadres to participate in the red learning tour in Yan'an, during which they visited the Yan'an Revolutionary Memorial Hall and other historical relics. , Knowing that today's happiness and stability are hard-won, and I also appreciate President Xi’s wise saying that happiness is the result of struggle.  
    The All-China Federation of Industry and Commerce Metallurgical Chamber of Commerce held a press conference today (29th) to announce the operation of private steel companies in 2017. Significant improvement in economic efficiency and increased investment in environmental protection are the two highlights of private steel companies. At the same time, there were also responses to some recent hot spots in the steel industry, such as inventory and price trends, and corporate restructuring.   In 2017, the output of crude steel by private enterprises reached 471 million tons, a year-on-year growth rate lower than the national average. The output of steel reached 703 million tons, a year-on-year decrease of 1%, showing the remarkable results of reducing overcapacity and banning local steel. However, there are also differences within private enterprises: both the crude steel output and the steel output of key private enterprises have increased by more than 7%; the steel output of other small enterprises has fallen by more than 6% year-on-year. Wang Lianzhong, executive deputy secretary-general of the Metallurgical Chamber of Commerce of the All-China Federation of Industry and Commerce, pointed out that the concentration of production in advantageous enterprises is a welcome phenomenon, indicating that enterprises with good production conditions and high quality steel products have a higher growth rate than those with relatively low production conditions and low product quality. Iron and steel companies have changed the phenomenon of "bad money drives out good money".   Under the combined effect of various factors, the profitability of private steel enterprises increased significantly last year. The labor cost per ton of steel is about 200 yuan lower than the industry average, and the average profit per ton of steel is 430 yuan, a year-on-year increase of 336 yuan.   At the same time, private steel companies continue to increase investment in environmental protection. The environmental protection costs per ton of steel for steel companies in Anyang, Handan, and Tangshan have risen to 120 yuan, and some steel companies have even reached 150 yuan.   Regarding the trend of the steel industry this year, Song Lei, the vice chairman of the Metallurgical Chamber of Commerce of the All-China Federation of Industry and Commerce, initially judged that the price of steel will remain above 3,000 yuan per ton. "The overall prosperity of the industry market this year should not be as good as 2017, including the price may have to go to the next level, and the profit level may have to go down two steps. But the market situation will not be worse, that is, steel companies will maintain a reasonable level. This year’s profit will be around 300-500 yuan per ton of steel. It will not happen that large-scale losses in 2015 and 2016 or steel prices fall below the prefix 2 will not occur."   However, in recent times, the social stock of steel has increased significantly year-on-year, and domestic steel prices have continued to fall. A research report shows that from an absolute index, the current increase in social inventories in the steel market is 154%, the highest level in 4 years. In this regard, Song Lei said that the increase in inventories was mainly due to the increase in winter storage by middlemen last year. However, the recent decline in steel prices has caused the middlemen to face losses and are unwilling to dump goods at low prices. Therefore, destocking has entered a stalemate. He predicts that the situation in April may get better. "The demand is not as bad as everyone thinks, and it is only in a stalemate. If there is not a large amount of production release, but if the demand accelerates, it may be destocked. The speed will increase. Destocking may accelerate in April."   It is understood that the steel industry will also usher in a major relocation and major reorganization this year. The major relocation is the transfer of production capacity across provinces, cities and counties and moving out of cities. At present, some provinces and cities have already made relocation plans and set clear deadlines for relocation. The major reorganization means that the scope of mergers and reorganizations of steel enterprises will be larger. Wang Lianzhong said that 70 to 80 of the more than 200 private steel companies have begun restructuring or have made significant progress, and there are still a large number of companies in the process of brewing and negotiating. "Almost every one is studying how to further merge and develop. Research on a reasonable combination of production capacity. The amount and the results are unprecedented in the steel industry in the past."
How to extend the life span, achieve true success, continuity of the steel production process, and the development of a compact process, is also an important manifestation of speeding up efficiency. At present, the life span of the tundish of many European steel mills has reached 30-50h, and the American steel mills have increased their predecessors by nearly 100h. The life of the tundish is based on the improvement of the work rate and the process and quality requirements of the entire continuous casting process. I hope that the life of a single tundish in continuous use is no longer calculated in terms of heat, but in hours. It is a well-known fact that continuous casting greatly saves energy consumption and the consumption of various raw materials than die casting, and greatly improves the quality of steel products. Under the premise of slag splashing protection, the lining life of the converter has advanced to a new level, reaching the level of more than 10,000 furnaces or even 30,000 furnaces. Mainly around the requirements of the following aspects: ①The life of refractory materials that have been greatly improved requires that the life of supporting refractories should be kept in step with it; ②The structural design must adapt to the production requirements of continuous use; ③In ensuring the refractory of the parent body Under the premise of the basic life of the material, improve the high-temperature performance of the repair material and maintain the longer life of the parent refractory; ④The material design should be beneficial to the repair and regeneration of some high-end refractory materials to extend their service life. For example, the life of a ladle has evolved from being repeatedly used ten times to hundreds of times. High-speed, continuous, and high-quality steelmaking production must be blamed for the production process to greatly improve the level of automatic control, and to develop in the direction of intelligence. The high-speed, continuous, and high-quality production characteristics confirm that the new steelmaking production must be smooth and smooth. , No chaos, and basically no accidents. It should also be pointed out that hot metal pretreatment and molten steel refining (up to tundish, mold metallurgy) have become an optimized combination of important components of the new process, which has promoted the development of compact and continuous processes. Continuous casting production optimization has also played a pivotal role, especially near-net-shape continuous casting technology (the highest level of high-quality, high-speed, high continuous casting rate, and high-performance continuous casting technology development) has laid the foundation for a compact process. The continuous casting production is not chaotic on the process, and the increasingly stringent requirements for quality optimization have promoted the rapid development of clean steel and pure steel production technology with molten iron pretreatment and molten steel refining as the core, and proposed non-polluting molten steel for various raw materials. , And even further purify the new requirements of steel.   Secondly, the requirement for longer life also has new connotations in content. At the same time, due to the popularization and development of continuous casting and refining, the holding time of molten steel in the ladle is generally prolonged every time it is used, and it has to adapt to various metallurgical processing functional requirements, and the actual life is longer.    Fast, efficient, compact and continuous is itself an important factor in promoting high-quality steelmaking with low consumption. The lining life of the AOD refining furnace must exceed 100 furnaces and so on. First of all, the requirements for life indicators have undergone unimaginable changes in the past. The predecessor's index for improving the life of electric furnace lining and cover has reached more than 1,000 furnaces. These high-end production requirements not only need to improve the optimized new technology of the predecessors, but also need the support of complete detection and control equipment, modern information technology and the guarantee of various new refractory materials with optimized functions. For example: continuous casting tundish nozzle seat brick life should be synchronized with the lining life; while long nozzles and immersion nozzles need to improve the structure to achieve rapid replacement; for continuous casting steel with high silicon and aluminum content, in order to prevent Al2O3 from depositing and clogging For intermittent production, it is necessary to design an immersion nozzle with anti-clogging function from the material and structure; and the converter lining refractories only need to meet the most basic refractory performance and high temperature strength requirements. The longevity of refractories has been transformed into a good one. The adhesion of the slag splash layer (such as th
Leader inspection 2016-11-08
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Exhibition 2016-11-08
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  Due to the special working conditions of the smelting industry, there are many high-temperature areas in the steel plant workshops. How to protect these high-temperature areas has become the primary problem to be solved in the production of steel mills. The author recently visited the Anyang Steel Plant. After on-site surveys and the introduction of the workshop director, the steel plant’s high temperature zone mainly contains the following three parts.   一 Ladle car cable and argon metal hose, the ladle car is an important link for conveying molten steel, and it is the link between the previous and the next. During the tapping process, molten steel and steel slag will splash out under the impact of the steel stream. The cables and argon pipes of the ladle car are burned by the high-temperature molten steel and cover the outer wall of the cable insulation layer. A large amount of heat transfer will cause the insulation rubber. Overheating, rapid aging and brittleness. There are serious safety hazards, which restrict the normal production rhythm.   Argon gas is an important measure for refining molten steel. The argon gas pipe is closely attached to the wall of the ladle. If the metal hose is burned by the steel slag sprayed, gas leakage may occur, causing the argon gas pressure to fail to meet the requirements, and it will be lost. Even temperature and pure molten steel can even cause the package to be turned over.   2 The hydraulic tubing and cylinder body of the opening and closing mechanism of the ladle nozzle, the ladle molten steel pouring the molten steel into the tundish through the opening of the ladle nozzle, is one of the most critical links in continuous casting production. The ambient temperature of the hydraulic oil pipes and the cylinder block is as high as 800 degrees. The joints of the hydraulic oil pipes and the cylinder block are affected by high-temperature radiant heat. The metal of the hydraulic oil pipe joints and the cylinder block absorbs a large amount of heat energy, and the sealing and sealing of the oil pipes The cylinder block O-type seal is affected by high temperature and the seal is inelastic, resulting in capillary holes. When the metal shell expands and contracts with heat, hydraulic oil leaks out along the capillary holes, which affects the normal operation of the hydraulic system, and even catches fire and burns. The accident forced the suspension of production.   三 Electromagnetic stirring cable, the essence of the electromagnetic stirrer is to use the electromagnetic force induced in the liquid cavity of the slab to strengthen the movement of molten steel. Specifically, the alternating magnetic field excited by the stirrer penetrates into the molten steel in the casting slab, and a current is induced therein. The induced current interacts with the local magnetic field to generate electromagnetic force. The electromagnetic force is a volume force and acts on the molten steel volume element. , So as to promote the movement of molten steel. The cable uses super-power current to improve the internal quality of the casting. The cable is in an environment of high temperature and water vapor. The cable itself generates eddy current under strong magnetic induction through the super-power current. The service life of the electromagnetic stirrer.   It is understood that the protective materials currently used by most steel mills are: cheap asbestos fiber products. Asbestos fiber has low strength, poor toughness, and is easy to rot, and the heat insulation effect is not obvious, the anti-radiation ability is low, and it is easy to loose and fall off after high temperature, and the service cycle is short. The falling off asbestos dust has carcinogens that are harmful to the human body and affect the on-site environment. Increased the labor intensity of workers.   Henan Haigeer High Temperature Material Co., Ltd. is committed to professional high temperature protection materials. The steelmaking series of high temperature materials produced by it have good flexibility, high density, and obvious heat preservation effect, and can be exposed to molten steel in a short time. The maximum temperature resistance can reach 1650 degrees in a short time, and it can work at about 260 degrees for a long time. We specially design and tailor the equipment according to the manufacturer's equipment, and put a protective coat on the cables and pipes in the high temperature and harsh environment, which effectively improves and prolongs the operation rate and service life of the equipment. The steel-making series of high-temperature materials are made of imported high-quality silicone rubber, which plays a role of heat insulation and sealing insulation, and the inner layer of alkali-free glass fiber plays a role in heat resistance. Steelmaking series high temperature materials can effectively protect cables and hydraulic tubing. It is the best choice for high temperature insulation in steel mi

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