(too heavy remote operation intelligent excavator is delivered to the site) Speaking of excavators, everyone is no stranger. But which is the best excavator technology? I'm afraid not many people really know. From the crawler to the top, it is 23.5 meters high, as high as an 8-story building; With a dead weight of 2000 tons, 40 train skins will be installed after all parts are disassembled; The huge bucket used to dig things is enough to hold 300 people. This unique "Big Mac" in the world was developed and manufactured by Taiyuan Heavy Machinery Group Company. Focusing on the wave of industrial digital intelligence, Taizhong group, which started with the word "heavy", is speeding up reform and innovation, and is installing "smart brains" and "golden eyes" on these "big guys", with a new label of "smart". The reporter recently walked into Taizhong group and felt the "intelligent manufacturing" power of industrial heavy equipment on the spot. Let large machinery "live" Whether it's excavators and cranes weighing thousands of tons, wind turbines with impeller diameters of more than 180 meters, high-speed rail wheelsets galloping to the world... As the foundation of China's basic industry, the importance of heavy machinery is self-evident. In 1950, when the national industry was full of waste, the central government invested 750 million jin of millet to design and build the first heavy machinery plant in New China in Taiyuan, Shanxi Province. Over the past 70 years, Taizhong group has created more than 500 first places in China and the world. It is China's largest production base of lifting equipment, mining equipment and space launch equipment. Walking into the equipment plant like a jungle of steel, the majestic power of industrial heavy tools came to our faces. In the past two years, more and more "big men" have "great wisdom". In the south open pit coal mine located in huolingole, Inner Mongolia, the clean and bright remote cab shows the coal mining scene in real time on six high-definition screens. The mining driver Wang Yongsheng slowly pushes the handle. A large excavator several kilometers away excavates and loads coal, and it can complete a mining cycle in half a minute. The "Big Mac", which is more than 20 meters high, is light and smart on the screen. The remote "one button coal mining" has made the drivers of open-pit coal mines bid farewell to the dusty working environment and change from "black collar" to "white collar". Yuehaifeng, deputy director of the Mining Institute of the technology center of Taizhong group, said that at present, the 5g intelligent excavator developed by Taizhong group has been landed in three coal mines, and the order on hand is more than 10. Similar changes have also occurred in coking, steel and other industries. More than a month ago, the intelligent coking equipment developed and produced by Taizhong group was officially put into use in Jinnan iron and Steel Group, realizing "one key coking". Wang Fenfen, the driver of the coke pusher, said that the original cab temperature was close to 40 degrees Celsius, and it was only with two air conditioners blowing that he could barely sit. After the intelligent coke oven equipment was put into operation, she sat in the operation room of the centralized control center, and with a little finger, she could automatically complete all the processes of coal loading, coke pushing, coke blocking, coke receiving and coke quenching. "From focusing on hardware to both software and hardware, through the integration of the most advanced sensors and intelligent decision-making systems, hundreds of tons of large machinery have been 'live', which can not only provide users with more convenient services, but also optimize equipment from massive data." Wang Hongru, director of the intelligent Institute of the technology center of Taizhong group, said. Hold the core technology in your hand Taizhong group undertakes the historical mission of building a powerful country. It has created brilliance and experienced suffering. "Before 2004, we cooperated with a foreign company to produce large excavators with more than 20 cubic meters, but during the 20-year cooperation period, we did more than 80% of the work and only received 20% of the money. From the initial partner, we gradually evolved into each other's workers, because we didn't master the core technology." Yue Haifeng said. From the advent of the 10 cubic meter excavator to the birth of the 20 cubic meter excavator, too heavy people have experienced a long 24 years. After mastering the core technology of super large excavators, in just a few years, taiheavy excavators have completed a leap from 20 cubic meters to 75 cubic meters. Nowadays, Taizhong group is one of the only three large excavator manufacturers in the world. With the characteristics of durable equipment and large output, its domestic market share in the past two years is almost 100%. Five or six years ago, Taizhong group's train wheel set products once suffered a market decline. Some problems in management in the past few years also forced this state-owned enterprise into a situation of urgent need to get out of trouble and survive. During the trough period, Taizhong group worked hard to break the monopoly of foreign technology, seized the opportunity of "the Belt and Road" construction, and won tickets for high-speed rail core component suppliers. Nowadays, Taizhong group produces a wheel in less than a minute, and its products are exported to more than 60 countries and regions around the world, accounting for more than 50% of exports. Since this year, the export of heavy axle products has increased significantly, and the export volume in the first five months has increased by 2.5 times year-on-year. Tackling key technologies and firmly holding the initiative of development in their own hands has become a magic weapon for Taizhong group to transform and rejuvenate again and again and return to the center of the world manufacturing stage. Constantly surpass on the innovative track "The scale of excavators from small to large is not simply enlarged." Yuehaifeng said that the 10 cubic meter excavator weighs 500 tons. If the scale is enlarged, the weight of the 70 cubic meter excavator will reach 3500 tons, which will cause the equipment to be overweight and affect its practicality. The actual product is 2000 tons lighter than this value, which means that technicians need to optimize and upgrade more than 10000 parts one by one. "Taking the control system we conquered as an example, after using AC frequency conversion technology, digging a ton of coal consumes only 0.18 kwh of electricity, and the cost is reduced to one seventh of that of diesel excavators." Yue Haifeng said that in the era of intelligence, the next step is to overcome the continuous operation of intelligent heavy equipment and the coordination of multiple devices. Innovation is always the life of an enterprise. Hanzhentang, Secretary of the Party committee and chairman of Taizhong group, said that we should take innovation as our mission, treat innovation as our life, grasp innovation as if we were desperate, and innovate in a planned and disruptive manner under the institutional rules of fully doing front-end Market Research and technical feasibility research. Focusing on key technologies such as "choke neck" and upstream and downstream industrial chains, Taizhong group, relying on the National Key Laboratory and the industry university research cooperation platform, implements mechanisms and systems such as "taking the lead", R & D investment performance evaluation, and invention achievement equity sharing, innovates the sharing employment mode, and promotes the steady growth of enterprise R & D investment intensity. Scientific and technological innovation promotes efficiency. Despite the impact of the epidemic, the operating performance of Taizhong group last year was still the best year in recent years; In the first quarter of this year, the operating revenue continued to grow compared with the same period last year, the total profit increased by nearly 20%, and the high-quality development was steadily promoted. (Xinhua News Agency)