CURRENT SITUATION AND DEVELOPMENT OF DREDGING HOSE INDUSTRY

Writer： admin Time：2019-12-24 16:02 Browse：

Dredging hose is a part of a complete set of dredging equipment, and also one of the series of large-diameter fluid hose products. At present, the largest self-propelled rake suction vessel in the world, "leif erikson", can dredge a depth of 75m with a cabin capacity of 46,000 m3, which requires supporting rubber hose with a diameter of 1300mm and a blasting pressure of at least 9MPa to meet the working environment on the ship or pipeline. China's largest dredger "wantili" dredged with a dredging depth of 39m and a cabin capacity of about 10000m \, requiring teaming hose with a diameter of 1000mm and a burst pressure of 7.5mpa.
At present, there are four foreign dredging companies with a long history that control about 40% of the dredging business in the world, namely boscaris and vannoord of the Netherlands, demi and yandenot of Belgium. In recent years, dredging companies in China have been developing rapidly. China communications dredging (group) co., ltd. has become the largest dredging company in China, accounting for about 23% of the dredging business in the world.
China's dredger manufacturing industry started late, and for a long time to mainly rely on imports. Over the past 10 years, with the rapid development of Marine reclamation projects, domestic dredging enterprises have accelerated the speed of upgrading dredgers, and a large number of modern large cutter suction vessels and rake suction vessels with ocher blowing function have been put into use, with obvious momentum to catch up.
With the continuous development of dredging industry in the world, the demand for dredging pipe line and ship rubber hose is also increasing, which includes both quantity increase and quality improvement. In terms of the demand for dredging rubber hose, the global demand is about 1 billion yuan per year and shows a fluctuating growth, with an average annual increase of about 5%
Nowadays, China's dredging rubber hose industry has made great progress in r&d and manufacturing, and the product production has entered the semi-automatic level. Enterprises such as three rubber co., LTD., jiangsu taiping rubber co., LTD., and jiangsu huashen special rubber products co., LTD., represent the development level of this industry. At present, China's dredging rubber hose products market supply can account for more than 80% of the world, the product technology and quality can meet the needs of advanced large dredging dredge dredging. The technical performance of some newly developed and produced rubber hose products can meet the special functional requirements of severe environment and high-power dredging vessels. Therefore, the proportion of China's dredging rubber hose products exported in the world is increasing day by day.