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2025-08
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Yongxin Ship Dongrun 19 Water Supply Ceremony
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2023-07
Classification of bulk carriers
Coal carriers are bulk carriers used for loading and unloading coal, which have wide hatches to facilitate the loading and unloading of coal by grabs. In order to prevent the coal from rolling in the coal hold, there are many longitudinal gear plates at the bottom of the coal hold. Some coal carriers don't use grabs and booms, but have belt conveyors at the bottom of the coal hold, which can be connected with the shore conveyor and can load and unload coal by themselves.
History of Bulk Carriers
Dry bulk cargoes such as coal, grains and ores were earlier carried by general cargo ships. With the development of ship specialization, at the beginning of the 20th century appeared special iron ore transport ships, 1912 and the emergence of self-unloading ore ship,
Origin of the name Bulk Carrier
Because of the dry bulk carriers of a single type of cargo, do not need to be packaged into bundles, packages, boxes of loading and transportation, not afraid of extrusion, easy to loading and unloading, so are single-deck ship. Total deadweight of more than 50,000 tons, generally not loaded with cargo equipment. As grains, coal and mineral ores, etc., the cumulative load factor (per ton of goods accounted for by the volume) varies greatly, the size of the required cargo hold volume, the structure of the hull, the layout and equipment and many other aspects are different. Therefore, it is generally customary to load only grain, coal and other goods with similar accumulation factor of the ship, known as bulk carrier, and loaded with smaller accumulation factor of ore and other goods of the ship, known as ore ship.
Why not use stainless steel for ships
First, the high cost of stainless steel
Pickling and passivation of stainless steel chemical ships
Stainless steel pickling passivation solution does not belong to hazardous chemicals.
Stainless steel surface treatment process for stainless steel ballast tanks of stainless steel chemical tankers
The key to ballast water discharge depends on the actual loading conditions on board, different loading conditions discharge steps are different, there is no fixed steps. If it is discharged during the voyage, generally pay attention to the following points: