Entering the fourth quarter, Shougang Jingtang Steelmaking Department is full of energy, paying close attention to implementation, persisting in the pursuit of ultimate efficiency, digging deep into production line capabilities, optimizing organizational management, strengthening process coordination, improving equipment operation capabilities, and in the production model of "sealing one to ensure four", a new breakthrough was achieved with the converter smelting an average of 101 furnaces for seven consecutive days.
Stability is the foundation. In the process of comprehensively improving production efficiency, the Steelmaking Department has established multiple research teams to continue to carry out research and take multiple measures to ensure comprehensive improvement of various indicators. The technical research team combines factors such as production arrangement, variety fulfillment, material preparation, cost control, etc. to analyze internal and external production conditions in advance, formulate demand plans, coordinate and make overall arrangements, give priority to ensuring the balance of the iron and steel interface, and activate the "big horizontal shift" management model , ensuring the smooth flow of information and ensuring that the front and rear processes work together to achieve a stable improvement in production efficiency. The equipment research team is carefully deployed from the five dimensions of manpower, machine, methods, materials, and environment to identify potential equipment hazards, eliminate equipment failures, and comprehensively improve equipment function accuracy. At the same time, it prepares emergency plans, refines inspection and maintenance plans, and provides 24-hour uninterrupted escort, ensuring that the equipment is in optimal operating condition and laying a solid foundation for stable production.
The converter process is organized according to the "one seal and four guarantee" model. The research team focuses on problems such as the transformation of the tap hole, extending the life of the slide plate, and improving the furnace repair efficiency. It implements measures such as increasing the inner and outer diameter of the tap hole and increasing the thickness of the pick ring of the slide plate. The service life of the tapping port and sliding plate is extended by more than 30.7% and 23% respectively. By optimizing the formula of the repairing materials and increasing the fluidity of the materials, the repairing time is shortened by about 15 minutes, which provides a guarantee for improving production efficiency.
In October, with the upgrading of the product structure, the proportion of high-end product production gradually increased. Faced with the demand for normal production of monthly orders for automobile exterior panels and the monthly production of 300 furnaces of duplex products, in order to comprehensively improve the production efficiency of the refining station, the refining Based on the previous production situation, the research team comprehensively sorted out the weak links, based on interface stability, variety fulfillment as the goal, and pouring schedule as the standard, adjusted the production organization and management model, implemented 12-hour dynamic control, and strictly focused on the standardization of on-site operations and equipment management refined, extended refractory management, strengthened the coordination of front and rear processes, overcame tight production pressure, controlled the number of short pours, ensured the implementation of various measures, and achieved an average daily output of 11 furnaces in the refining station's dual process, creating a The best level in history.
In terms of comprehensively improving the casting machine casting speed, the continuous casting research team aims at the goal of "fast pace and high casting speed", continues to increase the production casting speed of peritectic steel and low alloy steel, and achieves mechanical processing of the continuous casting machine by matching the furnace cycle. The continuous casting machine's normalized two-way width adjustment production speed reaches 1.6 meters per minute, and the online width adjustment time is shortened by more than 50%, laying the foundation for improving the efficiency of the production line. At the same time, the continuous casting research team achieved a high-drawing speed of 1.7 meters per minute for peritectic steel by optimizing the production organization plan, developing high-speed casting mold powder, and designing high-speed continuous casting cooling processes stable production, the growth rate exceeded 21%, created the highest domestic record for peritectic steel production of the same type of continuous casting machine, improved the group pouring capacity, reduced the number of production standbys, and created conditions for increasing the constant drawing rate.