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发表于 2021-11-25 07:55:30 | 显示全部楼层 |阅读模式
Seagoing Bulk Carrier: General Use and Purpose

Numerous risks were encountered during the operation of bulk ships that sailed from sea. It is important to plan carefully and exercise care for all important issues on the ship's deck are essential . This site provides quick details to the international shipping community about how to load and disperse bulk cargo. But it is important to not exceed the limitations that are set by the classification society. It is important not to stress the structural integrity of the vessel and to follow all safety guidelines for safe passage at sea. Our detail pages contain various topics related to bulk carriers that could be helpful to those working onboard and those working at ashore at the terminal.

The general characteristics of bulk seagoing ships
Bulk carriers are single-deck vessels equipped with top-side tanks and hopper side tanks in cargo spaces . They are designed primarily to carry single-commodity solid bulk cargo. Solid bulk cargo refers to any material other than liquids or gases made up of a mixture of particles and granules. It is able to be loaded directly into cargo spaces without the need for any containment. Dry cargo includes sugar, grains, and bulk ores. In the broadest sense of the word bulk carrier, any vessel designed to transport bulk cargo (solid or liquid) in bulk would be classified as bulk carriers. Tankers are also included under this umbrella. The term"bulk carrier" is typically used to refer to vessels built to carry bulk cargoes. They include grains or similar agricultural products and minerals such as coal ore, and stone on one or more voyage legs.   Check out this dry cargo blog for more.

  

What Is A Bulk-Transport?

"A ship which is intended primarily to carry dry cargo in bulk, including such types as ore carriers and combination carriers"

-Carrying capacities vary between 3,000 and 300,000.
-Average speed 12 15 knots
-Single deck ships, ie no tweendecks
Carriers of medium to small size bulk (carrying capacities of between 40 to 60,000 tonnes) typically come with equipment for handling cargo. However larger vessels may use facilities on shore to load or unload.
The dimensions of cargo hold are typically large with no obstructions. They also come with larger hatches that permit easy loading and unloading.
A cargo hold is typically designated as an ballast storage. It can be used to ballast voyages in order to improve stability. For partially ballasting, one or two additional holds could be permitted, but only at port.
They are single pull, stacking or hydraulic type steel hatch covers.
Four kinds and sizes of ballast tank:
Sloping topside wing tanks
Tanks with a sloping bottom side.
Double bottom tanks
Peak and after peak ballast water tank.

Is it solid bulk cargo? Solid bulk cargo refers to anything other than gases or liquids composed of grains, particles or larger pieces, and can be loaded directly into the cargo area without the need for extra containment. Cargoes carried by bulk carriers comprise "clean" foodstuffs as well as "dirty" minerals. They can react to each other as well as with contamination sources such water. This is why it is essential to clean the cargo areas to accommodate the particular product. A surveyor is often required to look over the area and determine if it's suitable for loading. To avoid contamination, it's important that all residues from prior cargoes are cleared. The bulk cargo is more vulnerable to water damage. This implies that the hold need to be dry for cargo to be received. Furthermore hatch covers need to be watertight and sealed if needed to prevent water ingress. All fittings in the container (ladders, pipe guards, bilge, etc.) must 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 secured. They could cause damages to conveyor belts, which can cause delays. The ship could be held responsible if they were discharged accidentally with cargo. Have a look at this dry cargo ships specialist for more.

  

Bulk Carrier or Bulker? A vessel made to carry dry cargo that is loaded into the vessel with no containment other than that of the ship,s boundaries in contrast to the liquid bulk carrier or tanker. Bulk carriers that are conventional have one deck, with a one skin, double-bottom, topside and hopper side tanks. Bulk carriers are able to load bulk cargo of any kind that is light or heavy grain up to the maximum weight they can carry. It isn't easy to transport, load and discharge dry bulk cargo.

Gearless Bulk Carrier
Certain bulk cargoes can be dangerous and may be damaged in transit. Incorrect loading could cause the ship to be damaged easily. The ship can bend if it is loaded to the maximum forward holding. This ?stress? could lead to dangers to life at sea, especially during bad weather. In addition, leftovers from earlier cargoes could be a significant threat to the future cargoes. Damage from water can have a disastrous effects on bulk cargoes e.g. cement power. It can be difficult to determine the true weights and quantities of cargoes being loaded or not loaded. These factors have serious implications on the operation of bulk cargoes. Discharging bulk cargo using? Bulk cargoes can create a cone when loaded on conveyor belts. The angle that this cone forms is called the angle, or repose'. It varies for every cargo. Cargoes made of iron ore for instance, will make an angle-shaped cone. Cargoes that allow to move around freely will result in a cone with a shallow angle. A cargo with an angle that is low or repose can shift during passage. Bulldozers could be utilized for certain cargoes to distribute the load over the sides of the hold when the cargo is near to completion. Dry bulk carriers rely on the shoreline facilities to discharge and load cargo, but bulk carriers can also self-unload by using cranes or conveyors that are mounted on deck.
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