Recently, Marine Design and Research Institute of China (MARIC), a subsidiary of China State Shipbuilding Corporation released three self-developed new-generation dredgers, namely “Zhijun”, “Kunpeng” and “Tuohai”, at a conference.
The “Zhijun” series of fully electric-driven trailing suction hopper dredger is developed and designed to meet the requirements of maintenance dredging operations in coastal harbor waterways and large inland waterways, incorporating the design concept of “intelligent, efficient and economical”. Adopting long bulbous bow, new square stern and full electric drive, and equipped with double pod propellers, single rake and single bilge pump, the vessel has the functions of dredging, casting, bow blowing, bow spraying, side casting, and so on.
“The Kunpeng series of ultra-large self-propelled cutter suction dredger is designed to meet the requirements of large-scale excavation and hard rock dredging projects as well as conventional dredging, incorporating the design concepts of ‘greening, modularization, and intelligence’, which is a heavy dredger with fully independent and controllable capability. The vessel adopts all-electric drive design and equipped with LNG dual-fuel power system. Slots are provided at the transom for arranging the bridge system, while the main and auxiliary steel piles positioning system and three cables positioning system are arranged at the bow.
The “Tuohai” series of ultra-large dredger is developed to meet the requirements of long-distance sand extraction and filling and large-scale dredging projects, incorporating the design concept of “green, intelligent and efficient”. The vessel adopts new type of long bulbous bow and double tail fins, equipped with double rakes, double underwater pumps and double bilge pumps. It has the functions of double submerged pump dredging and loading, single submerged pump dredging and loading, bilge pump dredging and loading, mud door unloading, single bilge pump bow blowing/bow spraying, double bilge pump tandem bow blowing/bow spraying, and pumping bilge backfilling.
Since the development of dredging industry in China, MARIC has cooperated deeply with China Dredging Association and CCCC Dredging Group, and has successively developed “Haihu Series”, “Tong Series”, “Junnhai Series” trailing suction hopper dredgers. In addition, MARIC has also successfully developed large-scale cutter suction dredgers represented by “Tiankun” and “Xinhai Sha”, which are used for island building.
In September this year, the first domestic dual-fuel-powered dredger “Xin Haixun”, which was developed and designed by MARIC, was successfully delivered, marking the company’s new achievements in the research and development of dredgers, and also marking a major breakthrough in China’s dredging industry in terms of green, environmental protection and energy-saving technologies.