He is Zheng Jiuqiang, who is known as the "No.1 Steelmaker in China".
From 65438 to 0989, Zheng Jiuqiang, who graduated from Tangshan Iron and Steel Technical School, was assigned to the converter workshop of Tangshan No.1 Steelmaking Plant at that time. Due to his diligence and eagerness to learn, Zheng Jiuqiang grew up to be a steelmaking furnace chief in only three years, breaking the record that it takes 10 years to train a furnace chief.
1999, the steelmaking plant carried out technical transformation, replacing the small converter with 150 ton oxygen top-bottom combined blowing converter. This was the steel-making equipment with the largest production capacity and the most advanced technology in Hebei Province at that time, and the factory handed over the burden of technical research to Zheng Jiuqiang.
In those days, Zheng Jiuqiang will study the relevant materials and regulations of 150 ton converter production during the day, observe the production operation of similar converters in other units, learn the operation essentials, and learn books such as Steelmaking Principles and 500 Questions on Steelmaking at night. He sleeps from 2 am to 6 am every day, and he simply lives in the factory in the last week. Many things happen. After 2 1 day, he made the first heat of steel in the new converter.
In 2002, Zheng Jiuqiang participated in the "National Steelmaking Professional Skills Competition in Steel Industry". He not only recited several books on steelmaking designated by the organizing Committee, but also took more than 10 reading notes. At the competition site, Zheng Jiuqiang observed the flame and molten steel level in the furnace, visually observed the temperature of the furnace accurately, and finally won the title of "National Steelmaking Champion".
As an expert in steelmaking and a model worker, Zheng Jiuqiang deeply feels that technology alone is not enough, and it is necessary to improve the gold content of products through technological innovation. In recent years, he has applied for four national invention patents, such as "a deoxidizing process to reduce the consumption of deoxidizer for aluminum killed steel".
He is committed to the new steelmaking operation mode, providing high-quality and low-price molten steel for smelting high value-added and efficient products such as silicon steel, automobile steel and weathering steel. With the continuous improvement of product quality, the product innovation ability of hot rolling department is significantly enhanced, and the profit is 340 million yuan in 20 14.
In order to break through the technical bottleneck of the transformation from empirical steelmaking to scientific steelmaking, Zheng Jiuqiang summed up the "324" steelmaking operation method by using the steelmaking professional knowledge he had learned. After the comprehensive promotion of this operation method, the history of steelmaking by experience for more than 50 years has ended.
With the development of iron and steel industry and the improvement of steelmaking technology, new problems are constantly appearing in steelmaking production, and the problems are becoming more and more difficult. But steel workers are as strong as steel in their blood, and Zheng Jiuqiang has never been defeated.
Double slag operation method is a new production technology popularized in the industry in recent years. It is difficult to grasp the dephosphorization efficiency, and technical problems such as iron beads in slag come one after another. However, compared with the conventional smelting process, the "temptation" brought by the sharp reduction of slag consumption and steel consumption deeply attracted Zheng Jiuqiang.
Zheng Jiuqiang observed the temperature of molten steel in converter through a steel-making mirror.
At the beginning of 20 17, Zheng Jiuqiang summarized advanced technologies such as high-efficiency dephosphorization technology, rapid slag pouring technology and reducing the iron bead content in the slag pouring process in the early stage of double slag smelting by innovating the process path and strengthening the process control, so that the dephosphorization rate in the early stage reached over 60% and the annual benefit was130,000 yuan.
From 20 17 to 10, Zheng Jiuqiang adjusted the converter slag system according to the actual production of 150 ton converter, and summarized the advanced operation methods of "slagging, slag adjustment and slag splashing". After the application of this method in production, the service life of converter is increased from 6000 heats to more than 17000 heats, ranking the top three in China. Moreover, the whole furnace service is not supplemented, which not only saves more than 1,000 tons of supplementary material 1, but also squeezes out more than 1,000 hours of steelmaking time 1, creating more than 20 million yuan of benefits every year.
After several years of careful training, the steelmaking technical level of Zheng Jiuqiang's team has been significantly improved. Everyone can make more than 20 kinds of steel, and the converter workshop has completed a gorgeous transformation from "manual steelmaking" to "intelligent steelmaking". Zheng Jiuqiang also put forward suggestions to the company to further improve the treatment of operational skills talents, so that skilled workers no longer have the traditional concept of "being the best senior technician".
Zhang Jun is a model worker of steel works brought out by Zheng Jiuqiang. Zheng Jiuqiang taught him how to control the position of oxygen lance and how to judge steelmaking operation techniques such as temperature and composition. As long as it is Zhang Jun's operation, he will stand by and guide. If there is splash, help him analyze it and find out the reason. Slowly, Zhang Jun's operation level is constantly improving. Four years later, Zhang Jun became the chief steelmaking furnace, and the steel consumption of the steelmaking team he led was the lowest in the history of converter workshop.
Today, 3 people in the hot rolling department have become national technical experts, 10 people have become provincial and municipal technical experts, 1 people have become provincial model workers, and 2 people have become national metallurgical industry model workers.
After serving as the vice chairman of the trade union, Zheng Jiuqiang's vision has also become broader. By participating in various activities, he strengthened his communication with the first models. "Our innovation studio always focuses on what we do. However, after communicating with my peers, I found that people have formed a work standard model. " Zheng Jiuqiang said. Now, Zheng Jiuqiang and his team have improved and perfected the process of setting up, filing, patent application and summary of the innovation studio, and formed a standardized operation mode-as long as the front-line workers operate according to the standards set by the studio, they can all reach the "high level".
"Responsibility is motivation. No matter what position I hold, I must focus on the front line and staff. " Zheng Jiuqiang said. (