Win the "Five major battles"24.11.07

Around the annual production tasks and cost reduction targets

Steel works

Gather the wisdom and strength of each process position

By accelerating the application of technology

Carry out extreme iron consumption, product quality improvement and other measures

Fully tap the potential of process advantages

Help enterprises win the "Five Battles"

Improve business performance

Focusing on the goal of "extreme quality improvement and cost reduction", each production process of the plant has established a converter smelting model for hot metal conditions, equipment status and composition control according to the needs of different steel grades and different process routes, found the best balance point between iron consumption control and quality control, carried out collaborative research between processes, and explored the company's production increase and efficiency with extreme iron consumption.
The smelting cycle of the converter is shortened by 2.8min/ furnace by optimizing the tilting Angle of the converter, reforming the steel outlet, improving the oxygen supply intensity and shortening the measurement period of the auxiliary gun of the converter. In the promotion of intelligent projects, the factory has completed six intelligent projects such as intelligent slagging system and rapid prediction of temperature sampling by robot in iron line, creating conditions for the realization of efficient and stable production in steel mills.
According to the changes in hot metal conditions, the steelmaking plant has formulated five production organization plans, established dynamic adjustment of the furnace structure, optimized the blowing model, implemented accurate slag retention and other measures to improve the hit rate of the converter end point, minimize the end point oxygen content and process spatter. "From converter to continuous casting, process control standards vary greatly under the influence of human factors." Refining area director Liu Jianwei said.
In order to solve this problem, the plant optimized the process control standards for five consecutive times for the key parameter control of different process routes and varieties of steel, and actively carried out team performance dialogues to find the differences in team operation and eliminate them. Since the beginning of this year, the steel material of the steel mill has decreased by 1.4kg/t compared with last year, which has reached the best level in history.

"Keeping every pass and building every line of defense can create conditions for seizing the high-end market..." In accordance with the requirements of "three full two", the factory has established a borderless quality improvement team, increased variety research and development efforts, implemented 12 scientific and technological innovation projects such as clean steel production technology, revised and improved 190 steel grade operation points of thin plate and medium thick plate production line, and achieved mass production of high-end steel grades such as 9Ni steel.
The factory starts from "fine" and "lean", builds two data models of energy management data and statistical analysis, and establishes a refined energy control system. Each unit, each region, each shift and each post finds and corrects anomalies in time according to energy efficiency data, and constantly improves the level of energy independent control. The plant through the "reduce the power consumption of steelmaking process" and "improve the converter gas recovery", the converter process energy consumption decreased by 8.7% compared with last year, the gas recovery increased by 4.35%, and the cost reduction effect was remarkable.