Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe3O4, 72.4% Fe), hematite (Fe2O3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O), 55% Fe) or siderite (FeCO3, 48.2% Fe).
Ores containing very high quantities of hematite or magnetite (greater than about 60% iron) are known as "natural ore" or "direct shipping ore", meaning they can be fed directly into iron-making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel.
FIBC Bag package for iron ores.
Circular – This style of bag is made on the loom as a tube and is the lowest standard of FIBC. It will not maintain its shape when loaded and will sit down and bulge out in the middle. It will resemble a tomato when loaded, as the product will stretch the fabric when it is subjected to the pressure of the product being loaded.
U-Panel – A U-panel bag is a step up from a circular bag, as it will have two pieces of fabric resembling a U shape that are sewn together to make the shape of the bag. It will maintain its square shape much better than the circular style.
Four-Panel – The four-panel bag is the best bag for staying square other than a baffle bag. It is made of up four pieces of fabric that make up the sides and one for the bottom. These are all sewn together which resists the stretching tendencies of the bag and holds it in a cube shape much better.
Baffle – This style will be the best at keeping the cube shape of your product when the bag is loaded. It has additional baffles sewn down each corner to act as a pocket to fill each corner. In addition, there are other pockets sewn on each side for all the product to gather around the baffles and pockets. These are perfect if you have a small diameter product such as soybeans which can flow through the baffles without getting hung up. These bulk bags will be easier to stack as they will make a nice square cube.
Post time: Aug-26-2021