"Eight-lane" 16 huge molten iron cross-cars started in sequence, filled with molten iron with a high temperature of more than 1,000 degrees from the blast furnace, the tank cover was automatically covered to maintain the molten iron temperature, and the molten iron tank was steadily transported to the smelter. The next step of smelting is carried out in the steel area. The whole process is not operated by workers or drivers, and it only takes about 7 minutes.
This scene took place in the hot metal tank operation area of Jinnan Iron and Steel. With the application of 5G technology, work efficiency and safety have been greatly improved. As the largest 5G private network project in the iron and steel park in the country, the intelligent dispatching system for molten iron tanks here has recently become the only outstanding case of mobile Internet of Things applications in Shanxi selected by the Ministry of Industry and Information Technology. Manipulation and coordinated scheduling effectively solve the pain points of hot metal scheduling, such as high degree of manual dependence, high personnel input, high cost, and inaccurate measurement, and achieve the goal of reducing costs and increasing efficiency.
Huang Wei, director of Jinnan Iron and Steel Automation Project, said that hot metal scheduling involves the unified collaboration of multiple departments such as ironmaking, steelmaking, logistics, and production. For a long time, the traditional method of hot metal transportation is manual, information communication is slow, and the job is labor-intensive and dangerous. In addition, the traditional way of transportation by small trains takes about half an hour, and the heat loss of molten iron is too large, which is not conducive to energy saving and emission reduction.
"The remote control and intelligent dispatching system of molten iron tanker using 5G technology realizes precise control of the temperature drop of the molten iron tank, and realizes seamless connection throughout the whole process of molten iron logistics, time flow and information flow from ironmaking to steelmaking. Open the era of intelligent management and control in which the operation efficiency of molten iron tanks is comprehensively improved." Huang Wei said.
In the control room of the intelligent dispatching system hundreds of meters away from the work area, several staff members are closely watching the "cloud video" sent back by the video system in real time. Through the big screen, the whole process of the "iron-steel" connection process of the key process of steel production is broadcast live, which not only improves the accuracy of the process operation, but also allows the staff to rectify the common abnormal factors in time, mobilize the comprehensive management of multi-process cooperation, and control the operation turnover. Process data can be quickly analyzed, and the implementation of control measures can be monitored to provide a strong guarantee for intelligent scheduling and intelligent steelmaking.
"5G, as a new infrastructure digital base, will solve the problems of ' information island ' caused by complex production process scenarios in large iron and steel enterprises, and form an automatic control closed-loop management of "data collection - analysis decision - reverse control execution". It is the greatest value of 5G." said Peng Jun, an expert in the 5G industry of Huawei.
It is understood that Jinnan Iron and Steel Group, China Unicom, and Huawei Corporation have jointly built Shanxi's first private network with a 5G network covering industrial parks, and have successively implemented the intelligent dispatching system for molten iron tanks, one-key steelmaking system, and coking. The four major vehicle centralized control systems, 5G cloud video monitoring systems and other "intelligent sectors" have determined innovative directions such as unmanned driving, remote control, and belt transmission video monitoring, providing a demonstration for intelligent manufacturing projects in the iron and steel field in the province. According to Wei Jianzheng, general manager of China Unicom's Linfen branch, the two parties have recently established a "5G Innovation Joint Laboratory" to develop new applications such as 5G overhead crane collision avoidance and passenger unmanned driving, which will effectively promote advanced technology in the steel industry. The increase in production capacity will help the intelligent transformation of the iron and steel industry.
It is understood that in addition to Jinnan Iron and Steel, Valin Xianggang's "Black Light Factory" and "5G + Smart Factory" demonstration projects have been implemented, and many 5G + smart steel applications have been replicated on a large scale. Baosteel, River Steel , Liugang and other enterprises are also relying on 5G to carry out intelligent application practice.
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