Seagoing Bulk Carrier A General Purpose and Usage
The operations of seagoing bulk carriers was fraught with risks. It is important to plan carefully and be careful in all shipboard issues. This site is a quick reference to an international shipping community, offering guidance and details on loading and discharge of various bulk cargo types . It is to remain within the limitations according to the guidelines of the classification society. It is crucial to limit the risk of stressing the structure of the ship and to follow the safety rules for secure sea passage. Our detail pages cover various bulk carrier-related topics that could be relevant to those who work onboard or in the terminal.
General features for bulk ships that travel by sea.
Bulk carriers are single deck vessels designed with top-side tanks and side tanks for hoppers in cargo areas and are designed mostly to transport single-commodity bulk cargo. Any substance that is not liquid or gas but solid bulk cargo, that is any material made up of mixture or granules, or any other material with an identical composition. This material is able to be loaded directly into the cargo compartment of a ship and does not require any storage. Examples of dry cargo include grain sugar, ores, and sugar in bulk. In the broadest sense of the word bulk carrier, any vessel built to carry bulk goods (solid or liquid) in bulk would be classified as bulk carriers. Tankers also fall within this category. In normal usage, however the term is typically applied to vessels that carry bulk cargoes of solid goods, such as grains and other agricultural commodities in addition to mineral products like coal ore, stone, or even coal in one or more travel legs. Click over to this obo carrier info for more.
What Is A Bulk Transportation?
"A ship which is intended primarily to carry dry cargo in bulk, including such types as ore carriers and combination carriers"
Carrying capacity ranges from 3,000 to 300,000 tonnes
Average speed of 1215 knots
-Single deck ships, ie no tweendecks
Carriers of medium to small size bulk (carrying capacities of between 40 to 60,000 tonnes) typically have cargo handling gear. However, larger vessels can use docks to load and unload.
The cargo holdings are usually huge and clear of obstacles. There are hatches with larger dimensions so that cargoes can be unloaded and loaded easily.
Ballast holds are a standard feature of bulk carriers. This can be used for ballast voyages to improve stability. A couple of additional holds could be allowed for partially ballasting but only when in port.
They have hydraulic, single pull or stacking (piggy- back) steel hatch covers
Four types of ballast tanks
Sloping topside wing tanks
Bottom side of wings that are sloping
Double bottom tanks
Peak and after peak ballast water tank.
Bulk solid cargo? Solid bulk cargo is anything other than gases or liquids comprised of particles, grains, or larger pieces that can be loaded directly into the cargo area without additional container. The goods transported by bulk carriers, that range from "clean" foodstuffs up to "dirty" minerals and including those that may react with each other or with sources of contamination such as water, mean that care must be taken to ensure that cargo spaces are adequately prepared for the particular cargo that is to be loaded. The cargo space must be cleaned in a way that allows loading. Surveyors are often required to check the space to make sure it is safe for loading. To prevent contamination, it's essential to get rid of any remnants left from prior cargo. Bulk cargo damage is mostly due to water. To stop water from entering hatch covers should be watertight. All fittings inside the hold (pipe guards, bilge covers etc.) should be examined. All fittings in the hold (pipe guards, bilge covers, etc.) are to be examined to ensure they are in proper condition and securely fixed. This equipment may cause serious damages and delay to conveyor belt systems. Unintentionally discharged cargo can cause the ship to be held responsible. Peruse this dry bulk cargo site for more.
Bulk Carrier Bulk Carrier Bulker The vessel is designed to transport dry cargo. Conventional bulk carriers have one deck, with a single skin, double-bottom topside and hopper side tanks. Bulk carriers can carry all kinds of bulk cargo including heavy ore and lighter grains, with a maximum weight. The process of loading, transport and discharge of bulk dry cargo isn't as simple or easy as many people think.
Gearless Bulk Carrier
Certain bulk cargoes can be dangerous and could be altered during passage. Improper loading could cause damage to the vessel, e.g. loading an forward hold to its maximum can cause the ship to be bent. This is called "stress?" can have life threatening results when the weather is rough at sea. Other cargoes could also be affected by residuals from prior cargoes. Some bulk cargoes are also susceptible to damage from water. cement power. It is difficult to determine the true the weights or amounts of cargoes being discharged or loaded. These factors have serious implications on the operations of bulk cargoes. Discharging bulk cargo using? If conveyor belts and similar systems are not monitored and supervised the bulk cargoes will form a cone. The angle formed by the cone is referred to as the 'angle of repose'. It is different between cargos. Iron ore-based cargoes for instance, can make an cone with an angle. The cargo that is able to flow freely will create a cone with a shallow angle. A cargo with a low angle of repose is at risk of potential to shift during passage. In some cases, bulldozers may be required to spread the load into the sides of the holdings when the cargo is close to completion. Dry-bulk carriers depend on facilities at the shore for cargo discharge or loading. However, bulk carriers may have self-unloading options with conveyors beneath the cargo holds or on decks.
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