• 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 November 15

15:03 Port of Antwerp signs an agreement with Enabel
14:34 Throughput of Ukraine’s seaports in 10M’18 declined by 0.7% Y-o-Y to 108 million tonnes
14:03 Pavilion Energy and Novatek agree to strengthen their LNG partnership
14:00 Damen hands over four FCS 2610 vessels to Allianz during ADIPEC
13:36 ABS awards industry’s first offshore facility cyber security-ready notation to Sembcorp Marine
13:23 NOVATEK’s Board of Directors to be elected on 18 January 2019
13:00 Zvezda shipyard started serial manufacturing of Aframax-class tankers
12:39 Residents of Riga and the Port outline a common vision for the future
12:04 Singapore hosts 10th APEC Port Services Network (APSN) Port Connectivity Forum
11:48 Bunker prices are still high in the Far East ports of Russia (graph)
11:22 Sea Port of Saint-Petersburg’s allocations for its development programme totaled RUB 413.5 million in 9M’2018
11:03 NYK promotes decarbonization through exploratory design of NYK Super Eco Ship 2050
10:51 ABS and HHI pioneer Cyber Security standard for new vessels
10:25 Brent Crude futures price down 0.18% to $66, Light Sweet Crude – down 0.36% to $56.05
10:11 OOCL introduces new Asia – South Africa direct services
09:58 A.P. Moller – Maersk, CMA CGM, Hapag - Lloyd, MSC and Ocean Network Express plan to establish container shipping association
09:38 ASW Severomorsk of RF Navy's Northern Fleet completed a call to the Republic of Djibouti
09:16 Baltic Dry Index is down to 1,009 points

2018 November 14

18:37 Savannah achieves all-time record in October 2018
18:20 Sovcomflot concludes USD 149 million project credit facility with leading European banks
18:06 NYK and YLK jointly hold training program for staff from around the world
17:57 Organizers of “Dangerous cargoes: new transportation requirements” conference determined subjects to be discussed
17:36 Northwest Seaport Alliance adopts budget for 2019
17:07 DEME’s cutter suction dredger ‘Spartacus’ launched at the Royal IHC shipyard
17:06 Port of Rotterdam Authority wins 2018 ESPO Award
16:40 NIBULON’s fleet masters transportation of bulky cargo
16:38 Diana Shipping announces time charter contract for m/v Maia with Glencore
16:18 A.P. Moller - Maersk reports Q3 2018 results
15:48 1.348 million cbm to be dredged in Azov-Don River Basin this year
15:20 Stolt-Nielsen, Golar LNG and Höegh LNG announce joint $182 mln investment in Avenir LNG
14:56 World's most eco-friendly bulk carriers Viikki & Haaga operate in Baltic Sea
14:20 CHI Zhoushan is ready for LNG carrier repairs
13:37 DeloPorts published its operating results for Q3'2018
13:29 Damen Shiprepair Curaçao floating dock operational
13:15 Global Ship Lease announces new charter at increased rate
12:59 LUKOIL drilled second well in Eastern part of Yury Korchagin field
12:33 USC: aircraft carrier Admiral Kuznetsov to be out of repair on time
12:01 NYK introduces its initiatives of green bond
11:55 Clean water projects receive $3 mln from Long Beach Board of Harbor Commissioners
11:28 Navigation on Neva arms in Saint-Petersburg to close on November 15
10:45 IMO holds training for OSR officials in Myanmar
10:21 Brent Crude futures price down 0.29% to $65.28, Light Sweet Crude – down 0.45% to $55.44
10:02 GTT notified by Hyundai Heavy Industries for the tank design of a new LNG Carrier
09:59 STX receives AiP from LR for LNG-fuelled 50k dwt MR tanker
09:40 Bunker prices at the Port of Saint-Petersburg, Russia returned to September level (graph)
09:17 Baltic Dry Index is down to 1,064 points

2018 November 13

18:06 Navios Containers seeks to list on a U.S. stock exchange
17:53 BIMCO adopts 2020 bunker clauses
17:34 CMA CGM to revamp its CIMEX 2K2 service
17:11 Nevsky Shipyard takes part in «Transport of Russia» exhibition
16:56 NOVATEK shipped first LNG cargo to CNOOC
16:34 KOTUG and Petroconsult join forces to establish KOTUG PETRO Maritime (KPM)
16:20 Training on oil spill preparedness and response held for countries in eastern Africa
16:04 Diana Shipping announces the sale of a Panamax dry bulk vessel
15:55 Throughput of port Kavkaz in 10M’18 grew by 19% Y-o-Y to 42.6 million tonnes
15:34 Royal IHC wins KNVTS Ship of the Year for SCHELDT RIVER
15:03 Damco launches a dedicated warehouse for Barry Callebaut and inaugurates a new facility in the heart of Poland
14:41 MAN Cryo to design and deliver LNG regasification terminal
14:25 LUKOIL reports preliminary operating data for Q3 and 9M’2018
14:03 COSCO Shipping Heavy Industry and GTT sign agreement for LNG carrier repairs