中文
In the early 1990s, the traditional enlarged cuff discharge hoses were still widely used on the dredgers in China, the nominal diameters of those hoses range from 414mm to 700mm, and their dredging efficiency was very low. With the development of China’s dredging industry, such dredging pipelines are increasingly unsuitable for the needs of dredging projects. In order to change this situation, CDSR began to research and develop Ø700 steel flange discharge hose(discharge hose with steel nipple) in 1991, and the first batch of trial hoses were used by several major dredging companies in China. According to the trial results, CDSR conducted improvement research on materials, structure and process of the hose. Then, with the support of Guangzhou Dredging Company, 40 lengths of steel flange discharge hoses produced by CDSR were used in the reclaiming project of Macao Airport in comparison with the hoses supplied by other manufacturers.
Based on the performance and working conditions of the 40 trail hoses, CDSR improved materials, structure and process of the hose and supplied the improved hoses again. Finally, CDSR's steel flange discharge hoses were recognized and praised by the user, and their performance indicators were no less than those of the imported ones. The research and development of CDSR’s steel flange discharge hose had been declared successful. Since then, it had become a foregone conclusion that steel flange discharge hoses would be widely used on large dredgers in China.
In 1997, CDSR supplied Ø414 steel flange discharge hoses for a new 200 m³ dredger of Nantong Wenxiang Dredging Company, and then these hoses were used in a dredging project in Bengbu. In June 1998, the 12th National Dredging and Reclaiming Technology Meeting was also held in Bengbu, these Ø414 steel flange discharge hoses soon became the highlight of the on-site meeting, attracting everyone's attention. After the meeting, the steel flange discharge hoses were rapidly promoted and used in China as a good substitute of enlarged cuff discharge hoses. Since then, CDSR had created a new road for China’s dredging industry in the transformation, use and development of dredging hoses.
More than 30 years have passed, constantly developing of new products is always the eternal theme of CDSR. Its new product development and technological innovation, such as the improvement to hose reinforcement, the successful development of floating discharge hose, the successful development of armored hoses, and the successful development of offshore oil hoses(GMPHOM 2009), etc. have filled the gaps in relevant fields in China and fully demonstrated its innovative spirit and ability. CDSR will maintain its fine tradition, continue to adhere to the road of innovation, and strive to become a world-class manufacturer of large bore rubber hoses.
Date: 06 Aug 2021