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Forum bulletin

A Russian Dry-Cargo Carrier Fixed in Odessa

March 09, 2010

On February 26, 2010, the alteration of “Letny Bereg” dry-cargo carrier (home port Arkhangelsk) was finished. The alteration was performed by OSP Ukraina Shipyard, a part of the Odessa Commercial Sea Port. The alteration project was developed by the Marine Engineering Bureau, Odessa.

The ship altered is designed for transportation of general, bulk, timber, grain and oversized cargoes, standard containers and some dangerous goods.

In order to ensure transportation of outsized cargoes during the alteration, hold cross deck was demounted, hull structures fastened, ice reinforcement performed, forced explosion-proof hold ventilation provided and some other operations for bringing the vessel in line with international rules for dangerous goods transportation performed.

The hold is equipped with Piggy-Back hatchway covers with 2.3 m stow timber cargoes or one level of all-weigh containers accommodated on them. The second bottom is to carry load intensity of 8.0 t/mI.

The vessel was re-equipped in order to provide dangerous cargo transportation. There is natural and forced ventilation provided in the hold compartment.

The fore and stern of the hold compartment are equipped with 2 ventilating columns Du 350 being located in the hold corners (in total 4). 3 m height columns are equipped with ventilation cowls with closings. The hold ventilation inputs of these columns are located in the upper and lower parts of the hold compartment. There ventilation columns ensure natural ventilation.
Forced exhaust ventilation is ensured with two electric explosion-proof fans located in the stern ventilation columns. Fan capacity is 7,000 cu.m./h ensuring more than 6-fold air change per hour.

Earlier the vessel boards between the top and main deck were plated. Along the main deck boards, there were “galleries” ventilated by means of Du350 air-tubes installed on both ends of the “gallery” and leading to the top deck.

Before the alteration, the hold side coamings were equipped with watertight doors installed after the commissioning on the level of the main deck. These ensured hold compartment access from galleries. So, in order to prevent foul gases permeation from the hold compartment into the galleries, the doors were hermetically welded during the alteration at Ukraina Shipyard.

Bilge well construction ensures liquid evacuation from the hold compartment when bulk cargoes are being transported. The exhaust trunks are equipped with suppressors-spark catchers. The hold aft bulkhead is A-60 thermally insulated. To control cargo temperature, oxygen-gas relation, humidity, gas and oxygen concentration in the hold compartment, special gage nipples are provided.

So, after the alteration, Letny Bereg is capable of on-deck transportation of package dangerous cargoes of 1, 1.4S, 2, 3, 4.1, 4.2, 5, 6.1, 8 and 9 classes. All of them can be extinguished with water.

In the hold compartment, dangerous cargoes of 1.4S, 2.1, 2.2, 2.3 (No ООН 1082), 3, 4, 5.1, 6.1, 8 and 9 can be transported. The bulk delivery of dangerous cargoes of 4.1, 4.2, 4.3, 5.1 and 9 as well as MHB is permitted.

According to the Russian Marine Registry of Shipping, the vessel was qualified as КМ Ice 1 R2-RSN.


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