• 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 16

18:31 APL adds port calls to West Asia Express Service
18:16 Diana Shipping announces signing and drawdown of a US$75M Term Loan Facility with BNP Paribas
17:55 Director Kopczynska addresses WMU students and faculty on maritime Europe
17:40 Great Lakes announces receipt of $70 million San Jacinto award
17:33 Bollinger Shipyards commits USCG icebreaker program to Florida
17:31 New vehicle terminal announced at the Port of Southampton
17:18 Hapag-Lloyd hikes rates for East Asia-Arabian Gulf trade
17:08 ING Bank signed a USD 80 million syndicated loan agreement with NIBULON
16:43 Minimum training standards for fishers under review
16:25 USCG rescues 7 people from capsized boat near Horn Island
16:20 Port of Antwerp sets new records with best half year ever
15:56 Freeport of Riga showed good growth in the first half of 2018
15:32 Maersk Drilling secures two contract extensions in the North Sea
15:19 Container throughput of port Hong Kong (China) down 3.6% to 9.88 million TEUs in Jan-June’18
15:03 Van Oord will acquire MPI Offshore
14:44 Average wholesale prices for М-100 HFO down to RUB 17,589 in RF spot market
14:35 Wärtsilä to assist Transocean with thruster maintenance optimisation and dry-docking cost reductions
14:25 Jan De Nul Group acquires part of MPI’s offshore business unit
14:11 Fednav accepts delivery of MV Federal Dee, its 60th owned vessel
13:46 Eastern Shipbuilding inks contract with Bisso Offshore for RApport 2400 Ship Handling Tug duo
13:27 Azerbaijan Caspian Shipping Company’s fleet is involved in a new international project
13:07 Court dismisses EUR 9 million claim against Armada Seismic Invest II AS
13:06 Hong Kong will host ShipTek Ship Owning & Ship Management Conference & Awards on 30 August 2018
12:48 Marine Recruiting Agency takes on a project of training crane specialists in Estonia
12:23 SEACOR Holdings announced that it favors a business combination of Dorian LPG LTD. and BW LPG Limited
12:02 IMO head highlights key maritime issues during trip to China
11:46 Rosmorport appoints Igor Glukhov as Deputy Director for Navigation Safety of its Far East Basin Branch
11:25 Fincantieri contracted to build LNG-fueled pair for TUI Cruises
11:01 Baltic Dry Index up to 1,666 points
10:44 Brent Crude futures price down 0.5% to $74.96, Light Sweet Crude – down 0.64% to $69.5
10:25 Mexico benefits from IMO training on port security
10:02 IMO held port emissions training for Argentina
09:52 CMA CGM's FAK rates for Asia to Red Sea trades
09:40 Bunker sales at the port of Singapore in HI’18 up 1.7% Y-o-Y to 25.35 million tonnes
09:18 Port of Singapore throughput in HI’18 grew by 0.8% Y-o-Y to 312.79 million tonnes

2018 July 15

11:24 MAN Energy Solutions ready for SMM 2018
10:43 CMA CGM informs of FAK rates from the Indian Subcontinent to North Europe and the Mediterranean

2018 July 14

12:40 CMA CGM announces GRR for Far East to East Africa trade
11:41 ABP: Container terminal operation expansion to meet growing demand
10:14 Navtek selects Corvus Energy to provide battery for the world's first all-electric tug

2018 July 13

18:50 YILPORT Holding submits offer for Taranto Container Terminal concession
18:12 Metal Shark and ASV Global introduce “Sharktech” Autonomous Vessels
17:48 ABP: £2.7 million lock gate project secures future of Newport docks
17:16 Golar LNG Partners completed acquisition of equity interest in Golar Hilli, owner of FLNG Hilli Episeyo
16:48 Total closes acquisition of Engie’s upstream LNG business and becomes world No2 LNG player
16:36 Norwegian Cruise Line confirms options for two more Leonardo-class cruise ships
16:25 Russian Minister of Natural Resources and Environment Dmitry Kobylkin visited SCF headquarters
15:59 Upgraded vessels of Project 14200 started navigation on passenger routes in Ob-Irtysh basin
15:33 Draft law on closed zones for dry bulk cargo transshipment submitted to State Duma (document)
15:12 Wärtsilä signs a EUR 170 million scrubber deal
14:37 Draft law on development of cruise tourism in Russia’s Arctic and Far East submitted to State Duma
14:24 Weatherdock AG offers fishing sector a solution to support the fight against IUU
13:49 Damen supporting European shipbuilding with NAVAIS coordination
13:11 USCG postpones underwater assessment of WWII tanker Coimbra
12:40 A £2.7 million lock gate project secures future of Newport Docks
12:11 Hapag-Lloyd to apply season surcharge for NEC to WCSA trade
11:49 London will host 9th Maritime Salvage & Casualty Response Conference on 12-13 September 2018
11:27 Hapag-Lloyd's PSS for North Europe - Caribbean, Central America trade
11:03 Throughput of port Kaliningrad in 6M’18 up 9% Y-o-Y to 7.20 million tonnes
10:38 Brent Crude futures price down 0.24% to $74.27, Light Sweet Crude – up 0.07% to $70.38