• 2018 July 12 15:24

    Damen begins work on Marine Aggregate Dredger dredging system

    Damen has begun work on the construction of the innovative dredging system for the first Marine Aggregate Dredger (MAD), the shipbuilding group said in a press release.

    This vessel, which is being built at Damen Shipyards Galati in Romania, is designed to extract sand and gravel from the sea bed at depths of up to -55 metres, including in the challenging conditions of the North Sea. Damen is building the first MAD for Cemex UK Marine Ltd.

    The life expectancy of such a vessel is up to 30 years, so it was important to CEMEX that Damen develop them a vessel that was future-proof. The result is a vessel with an advanced focus on safety, performance and sustainability that will ensure its relevance in the years to come. The innovation of the MAD extends to the dredging system that Damen Dredging Equipment has recently started work on in Nijkerk, the Netherlands.

    CEMEX asked Damen to develop a system with no inboard dredge pipework, something which has never been done on a vessel of this size before. The thinking behind this was to avoid the possibility of the abrasive dredged material creating wear holes in the inboard dredge pipework on board making it a safer and easier maintenance-friendly system.

    “This initial design from Damen Dredging Equipment, considerably reduces the risk of flooding. It has implications way beyond the obvious improvements in safety, not only for the crew on board but also for the maintenance staff, as there will be a reduced requirement for expensive wear parts as well as fast, practical replacement,” says Mark Williams, CEMEX UK Fleet Engineering Manager.

    Reduced maintenance is a common theme to be found throughout the dredging system design, explains Frank de Hoogh, DDE Design and Proposal Engineer.

    “The modular nature of the dredging system takes care of this. Where maintenance was previously a significant undertaking, it can now be conducted with just the on-board service crane, significantly lowering maintenance requirements and increasing uptime.”

    An example of this modularity at work is the screening installation. This is fixed, as opposed to the typical rotating screen towers more commonly used. In addition to being more maintenance friendly, the screening area features an increased capacity courtesy of a larger surface area.

    Another element is the dry unloader machine that Damen has developed along with CEMEX and manufacturer PLM. As a concept, Damen has selected the proven principle of a grab unloader, however a lot of work has gone into optimising the design. For example all electronics on the machine are rated IP68 for long term reliability. Another example is the design of the grab which is optimized to maximize efficiency of each discharge cycle.

    “Such a system already exists in principle, but this model represents the next step – the next generation – in dry unloading technology.”

    Ultimately, Frank says, the MAD benefits from Damen’s role of vessel integrator. “We are responsible not only for the design and build of the vessel, but also for the design and delivery of all on board equipment and its integration with the vessel. This ensures the predictable, reliable performance of the end product.”




2018 July 19

18:23 MPA and Port of Rotterdam Authority to continue cooperation in information exchange and R&D
18:14 DP World signs agreement to boost international trade
17:55 NIBULON launched second T3500 Project tug
17:32 IMO supports spill preparedness in the Northwest Pacific
17:10 ABB turbochargers support optimal performance and fuel efficiency for one of the world’s largest container ships
16:48 Escort vessel Yaroslav Mudriy of RF Navy’s Baltic Fleet leaves port of Cyprus
16:21 Ocean Alliance - CMA CGM to reshuffle its CIMEX 6 service
15:59 Blagoveshchensk shipyard launched hydrographic vessel Aleksandr Rogotsky built for RF Navy’s Pacific Fleet
15:26 Austal USA opens new San Diego operations office
15:04 MABUX says high volatility remains in global bunker market
14:45 Port of Klaipeda (Lithuania) handled 22.2 million tonnes of cargo in 6M'18, up 7.6% Y-o-Y
14:27 FSB Border Service explains its position as regards vessels owned by foreign entities and used by Russian fishermen
14:09 New CMA CGM's FAK rates from Asia to North Europe
14:02 The PORT OF KIEL invests in cargo handling and environmental technology
13:43 Season of icebreaker assistance in water area of port Sabetta is over from July 20
13:28 Coast Guard offloads approximately 8.5 tons of cocaine
13:04 CMA CGM: FAK rates from Asia to the Mediterranean
12:55 NOVATEK shipped first LNG cargos to China
12:36 ILCA, Port of Amsterdam to host Chem Together meeting, Sept. 11
12:10 Fuel oil prices are flat at the Far East ports of Russia (graph)
11:42 State Duma approves Russian ships’ multiple crossings of State Border through notification procedure
11:19 CMA CGM to apply FAK rates for Asia-North Africa trades
10:54 Canada’s Davie Shipbuilding delivered first LNG-powered ferry to be built in North America
10:35 NYK establishes logistics JV for finished cars using automobile freight trains in India
10:03 New Port of Hamburg “Connection Compass 2018/19” has arrived
09:46 Brent Crude futures price down 0.18% to $72.77, Light Sweet Crude – down 0.12% to $67.67
09:14 Baltic Dry Index up to 1,688 points

2018 July 18

18:31 Naval Group posts H1 2018 performance results
18:00 BC Ferries announces sponsorship of the Nicholas Sonntag Marine Education Centre
17:36 DP World announces closing of Continental Warehousing Corporation (India) transaction
17:12 Marine Technics to participate in International Far East Maritime Show-2018
16:44 Oleg Bukin elected as Chairman of Tuapse Commercial Seaport BoD
16:23 Transocean and Chevron Australia ink 11-well contract
15:45 Stena Bulk positions itself in crude oil
15:19 Transocean announces 13-well contract for Transocean 712
14:57 AGCS issued Safety & Shipping Review 2018
14:43 Scandlines Helsingborg-Helsingör kicks off the holiday traffic season without delay
14:18 Intermarine UK promotes Portland Port to Government minister
14:00 Szczecin to become the capital of Baltic seaports in September
13:31 OHT to order ULSTEIN-designed heavy lift transport and installation vessel
12:59 Ports of Szczecin and Świnoujście announce 12-pct increase of cargo handling in HI’18
12:22 Dorian LPG confirms receipt of director nominations from BW LPG
11:50 Throughput of Ukraine’s seaports in HI’18 fell by 3.1% Y-o-Y to 53.8 million tonnes
11:25 TTS Colibri 3D compensated crane passes FAT
11:03 Overseas Shipholding Group places order for cemical tanker duo with Hyundai Mipo Dockyard
10:41 Yaroslavsky Shipbuilding Plant launches Svetlyak-class patrol boat Balaklava
10:32 Brent Crude futures price down 0.35% to $71.91, Light Sweet Crude – down 0.36% to $66.92
10:16 ICS encouraged by IMO progress on 2020 global sulphur cap implementation issues
09:59 Bunker prices continue going down at the Port of Saint-Petersburg, Russia (graph)
09:40 Throughput of Russian seaports in 6M’18 grew by 2.8% Y-o-Y to 394.8 million tonnes (detalization)
09:16 Baltic Dry Index up to 1,721 points

2018 July 17

18:24 North P&I Club and 24Vision ink partnership agreement
18:07 Lockheed Martin awarded Navy's contract worth more than $450 million in FMS funding for MMSC project
17:55 TransContainer announced its operating results for the second quarter and the first half of 2018
17:27 Equinor buys shares for use in the group's Share saving plan
17:11 Vigor Marine LLC gets Navy's contract for USNS Mercy mid-term availability
16:56 Okskaya Sudoverf puts into operation Belmax 4, fourth non-self-propelled barge of Project ROB20
16:34 Prosafe awarded important contract in Brazil
15:47 Orsted opts for Tekmar's CPS for Borssele 1 and 2 offshore wind farm projects
15:28 Port of Rotterdam places a bee colony in the port area