NHI Headlines
NHI: Steering a New Journey in Localizing High-End Equipment through Technological Innovation
As a cornerstone in the heavy machinery manufacturing sector, Northern Heavy Industries (NHI) has embraced technological innovation as the core driving force behind its corporate growth in recent years, demonstrating remarkable strength and responsibility in the field of metallurgical equipment.
5.5-meter Crop Shear and Dividing Shear: Setting a New Benchmark for Domestic High-End Shearing Equipment
In the steel production process, the shearing stage for plates plays an indispensable role in determining both product quality and production efficiency. Drawing upon extensive technical expertise and a relentless spirit of innovation, NHI has successfully launched the 5.5-meter crop shear and dividing shear. These innovations have not only filled a critical gap in China’s metallurgy industry but also set new standards for domestically produced high-end shearing equipment.
These two shears adopt an internationally advanced rolling-cut design, where the blades move along a curved path to evenly distribute the shearing force, thus enhancing the processing capability of wide and thick plates. The structure has been optimized through finite element analysis to ensure the stability of the frame. Moreover, a rational structural layout and damping settings further enhance the rigidity of the equipment, guaranteeing operational stability and shearing precision.
By leveraging the linkage between intelligent hydraulic systems and sensors, NHI has achieved a shearing accuracy at the 0.1mm level, reaching internationally advanced standards and meeting the stringent demands of high-end manufacturing industries. Meanwhile, modular design stands out as another highlight of these two shears. The modular design of key components enables easier maintenance and upgrades, boosting equipment utilization rate by over 30%.
In addition, the introduction of an energy consumption management system has improved overall energy-saving efficiency by 15%. This not only fulfills the company’s social responsibility for energy conservation and emission reduction but also fully demonstrates the formidable strength of “Made in China”.
Φ5200×24500mm Drum Mixer: A Leap Forward in Sintering Equipment Innovation
In 2023, NHI successfully won the bid for the design and manufacturing project of the Φ5200×24500mm drum mixer. This achievement marks a significant transition of our country from “following” to “leading” in this field.
This drum mixer, boasting an oversized specification, incorporates a multi-segment spray pipe system and a front-end filtration system, enhancing the uniformity of material moisture content by 40%. The idler device uses self-aligning roller bearings, extending the bearing life by more than 50%. Meanwhile, an intelligent lubrication system can spray oil in real-time based on equipment parameters, extending the equipment maintenance cycle to 10,000 hours. The lining inside the drum utilizes a three-in-one ceramic liner, improving wear resistance by three times and increasing mixing efficiency by 25%. The large gear ring adopts a segmented structure made of ADI material, reducing manufacturing time by 30% and enhancing installation efficiency by 50%.
Φ5.2×110m Rotary Kiln: Filling the Domestic Gap
The Φ5.2×110m rotary kiln undertaken by NHI has successfully filled a domestic gap and broken the long-standing foreign technological monopoly.
This rotary kiln boasts a length of 110 meters and a diameter of 5.2 meters, achieving a 50% increase in production capacity and a 20% reduction in unit energy consumption. By utilizing a multi-stage cyclone preheater in combination with an efficient burner, thermal efficiency is enhanced to 85%, while carbon emission intensity decreases by 15%. Integrated with a DCS automation system and AI algorithm, it enables real-time monitoring and dynamic adjustment of key parameters, reducing the fault rate by 30%.
The Robust Support System Behind Innovation
Behind NHI’s series of innovative achievements lies a powerful “industry-university-research-application” integrated innovation ecosystem.
Relying on its national R&D platforms, NHI has gathered a large pool of outstanding talents and advanced equipment. By the end of 2024, it had accomplished more than 200 key technologies across multiple disciplines and received 179 patent authorizations, significantly enhancing its core competitiveness.
Meanwhile, through in-depth collaborations with universities such as Northeastern University, NHI has jointly tackled technical hurdles in areas like intelligent control algorithms and materials technology. One notable project, the “Unattended Intelligent Platform,” has elevated the automation level of its equipment. In addition, NHI has actively promoted the upgrade to smart manufacturing. The production information management system has been established through equipment interconnection and digital workshop transformation. In the design phase, digital design software is utilized to shorten the R&D cycle; in the manufacturing phase, interconnectivity of equipment and data collection are realized, optimizing production processes and improving overall efficiency by 30% while reducing costs by 20%.
In the future, NHI will actively fulfill its mission as one of “the pillars of a great power,” adhering to a path of high-end, intelligent, and green development. Leveraging its technological advantages, excellent market reputation, and rich experience in innovation, NHI aims to provide more high-end equipment and technical services to the global metallurgy industry.