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Hebei Rongxin Steel Plant aimed at the key link, broke a number of records!

The beating of the war inspires the pride of the workers; Enterprise needs, is the course of the striver. Hebei Rongxin Steel Co., Ltd. steelmaking all cadres and workers under the leadership of Liu Guojun, the director, keep the mission in mind, carry the responsibility on the shoulder, after the second half of 2023, the new steelmaking project smoothly put into operation, stable production on the basis of the focus of work to improve indicators, efficiency improvement direction tilt. Through in-depth practice of the company's work ideas of "relying on the standard to find gaps, relying on innovation to find methods, relying on research to find breakthroughs", stably promote standardized operations, scientific production organization and other comprehensive means, continue to carry out the standard, innovation, research activities, and successfully achieve the essence of the improvement of the operation level with the stable improvement of the converter operation as the core, and the comprehensive management with the production organization as the core. He has won the honorary title of "Advanced unit" of Hebei Xinda Group and handed over a brilliant answer sheet.

The overall production of steel mills is stable and good, and the comprehensive indicators have improved significantly. From January to June 2024, alloy consumption is 0.54kg/t lower than last year, solvent consumption is 1.21kg/t lower than last year, gas recovery is 19.76m³/t higher than last year, steam recovery is 34.33kg/t higher than last year, and nitrogen consumption is 5.93m³/t lower than last year. Due to the improvement of various indicators, the total effect from January to June was about 18.799,900 yuan. Among them, through the company-level activities to improve the final carbon of the converter and the conversion rate of the converter, under the joint help of the automatic control program of the oxygen gun designed and produced completely by itself and the control of the internal molten steel composition in a very narrow range, the alloy consumption continued to decrease, and the alloy consumption was 6.14kg/t in June, achieving the best level since the establishment of the factory.

With the strong support of the company, the steel mill has significantly increased the amount of gas recovery from January to June by 19.76m³/t compared with last year through comprehensive research activities such as reforming the gas recovery pipeline and adjusting the operating parameters of the gas recovery equipment. Among them, the gas recovery completed 156.83m³/t in April, the best record since the establishment of the plant. At the beginning of June, affected by the decline in power consumption, the amount of gas recovery decreased significantly, according to the company's instructions, steel mills adjusted their ideas in time, and took improving the calorific value of gas as the leading direction of gas recovery. By adjusting the parameters of gas recovery, the calorific value of gas can be completed above 1400 kcal, which laid a good foundation for the next step to complete the gas recovery work with quality and quantity.

Through the comprehensive improvement of equipment minor reform, pipe insulation, equipment operation parameter adjustment and so on, the steam recovery quantity of the steel mill has been greatly increased, and the steam recovery of 117.76kg/t was completed in April, which is the best record since the establishment of the plant. Through parameter adjustment of nitrogen consumption equipment and air source replacement, the average nitrogen consumption from January to June was 56.4m³/t, of which 45.24m³/t was completed in April, achieving the best level since the new steelmaking project was put into operation, and also an excellent indicator of nitrogen consumption in dry dust removal converter with the same tonnage.

Through continuous improvement of the level of standardized operation, timely introduction and revision of the process management system, the establishment of a process supervision team and daily supervision and inspection of the implementation of on-site process discipline, the quality pass rate of steel mills from January to June was 99.95%, an increase of 0.07% over last year. In view of the crack inspection defects of casting billet, the steelmaking plant has adopted comprehensive transformation and upgrading through in-depth research and independent innovation of the cooling system of continuous casting, such as changing the inner and outer arcs of each section of water strip from double drain nozzle to single drain nozzle, trying different types of water nozzle, adjusting the distribution of each section of water nozzle, reducing the secondary cooling intensity and optimizing the distribution of secondary cold water water in each section. Under the common progress of comprehensive measures such as further optimization of production organization and strict control of the overheat of the package, after two months of continuous tracking, the inspection cracks of the billet were greatly reduced, and the total number of monthly cracks was reduced month by month, realizing the essence control of the cracks of the billet, which played a very strong guarantee role in improving the quality and pulling speed of the billet and reducing potential quality risks.

Since the beginning of this year, the steelmaking company has adhered to the safety management policy of "safety first, prevention first and comprehensive management", always put safety work in the first place of all work, actively carried out safety training, hidden danger investigation, personnel behavior control and other basic safety management work, constantly improve the safety awareness of all staff, consolidate the safety foundation, and provide a strong foundation for safe production. From January to June, the company achieved zero serious injury accidents, zero major fire accidents, zero occupational health accidents, and the injury rate of 1,000 people ≤4‰, completing the target set at the beginning of the year.

With the production of new steelmaking projects, the environmental protection foundation of steel mills has been substantially improved, but the relevant departments have higher standards for environmental protection work. To this end, the steelmaking plant further refined the site management, and organized maintenance personnel to carry out a number of environmental governance and transformation work such as iron dust removal cover, iron ladle capping, multi-layer platform smoke point sealing, etc., so that the unorganized emission of smoke and dust has been effectively controlled. In order to further improve the comprehensive environment, the steel mill actively organizes personnel to use the production gap to greening around the plant, and strives to improve the overall plant appearance and contribute to the construction of a green culture factory.

Look far to know the wind and waves small, the beginning of the letter heaven and earth wide. Hebei Rongxin Steel Co., Ltd. steelmaking will maintain the realm of "not afraid of floating clouds", "insist on not relax the mountains", continue to practice the "five-Five strategic development three-step plan", through a series of measures such as tapping the potential to increase efficiency, operation and inspection, environmental protection upgrading, process innovation, brand building, standard exchange, gathering the heart to a place to think, to make a great force, Achieve effective improvement in quality and reasonable growth in quantity. Help the group's green and high-quality development trend continue to improve, steadily improve quality, and turn the grand vision of "serving the country with industry to create a century-old strong enterprise" into a beautiful reality step by step!