There are many different kinds of mining companies that are working in the mineral production field. Minerals like iron ore are always the first step in the production of steel products. Agglomeration is one of the important processes in iron ore mining and iron production. Agglomeration is a process where large particles are made from smaller particles. The process is used in various sectors of the pharmaceutical, chemical and metallurgical industries. According to the application concentrated in the steel industry, it can be divided into three parts.
- sintering
- Granulation
- briquetting
Pellets are iron ore pellets used in steel production. At one time, the powder from iron ore mining was considered waste and was not used, but with the invention of pellets, the technology was used to make these materials into pellets, which were used as raw materials and feed for direct reduction furnaces and blast furnaces. furnaces.. The main ingredient for the production of pellets is iron ore, which must be used as a concentrate. 
The iron concentrate is obtained by crushing and softening to remove iron impurities and improve iron quality. The particle size of the concentrate used should be less than 45 microns. Additives and binders such as bentonite, lime, organic materials, lime, cement, and water are also used to make capsules. Granulation is the process of rolling wet fine particles (particles less than 72 microns in size) into spherical particles. This process can be carried out with or without the addition of a binder with a cylindrical (bucket) or disk granulator. Green marbles are made through a curing cycle that includes drying, preheating, firing at around 1350 degrees Celsius, and then cooling.
- Important steps in granulation include:
- Production of raw material pellets
- Raw material pellets are heated and hardened
- cooling of cooked granules
Different types of iron ore contain different proportions of pure iron, and the following four types of iron ore are commonly known. The main iron ore contains hematite (Fe2O3) and magnetite (Fe3O4). Magnetite: Magnetite is an iron oxide mineral that is generally black in color and can contain up to 72% pure iron. It is magnetic, so it is called magnetite. This material is present in Andhra Pradesh, Jharkhand, Goa, Kerala, Tamil Nadu and Karnataka. 
Hematite: Hematite is an iron oxide mineral. It is non-magnetic and varies in color from silver to reddish brown. This material contains 60% to 70% pure iron and is produced in Andhra Pradesh, Jharkhand, Odisha, Chhattisgarh, Goa, Karnataka, Maharashtra Trabzon, and Rajasthan. Widely used in the production of sponge steel. Limonite: This material contains 40% to 60% pure iron and is yellow or light brown in color. Siderite: This material contains many impurities and is only 40-50% pure iron. Generally speaking, iron (Fe) is one of the most abundant rock-forming elements, accounting for about 5% of the Earth's crust. Iron is the fourth most abundant element after oxygen, silicon, and aluminum, and the most abundant and most abundant metal after aluminum. Iron is essential to modern civilization and humans have mastered its use for over 3,000 years. Naturally, it became common when smelting furnaces began operating in the 14th century. Iron ore is metallic ironstone that can be mined economically. These stones are usually in the form of hematite (Fe2O3) or magnetite (Fe3O4). About 98% of the world's iron is used to make iron in the form of steel. For example, base iron is one of Australia's most important export industries. 
Today, most iron ores include elemental iron oxides, hematite Fe2O3 (70% iron), goethite Fe2O3s H2O (63% iron), limonite, and hydrated iron oxides (60% iron), and a mixture of magnetite Fe3O4 (72% iron). Most of the world's significant sources of iron ore are located in iron-rich sedimentary rocks called Banded Iron Formations (BIFs), which almost entirely date back to the Precambrian period (more than 600 million years ago). This arrangement exists on all continents. In many cases, they are mined as iron ore, but more importantly, they are the source rock for most of the high-grade iron mined around the world recently. Iron ore is a term that refers to a specific concentration of a specific iron compound. Iron compounds include ferric sulfate, zeolite iron, hematite, ferric chloride, carbonyl iron, and magnetite. Hematite dominates global production. 
Iron ore production mining
In general, iron ore production mines have become more active in recent years, it is good to know that iron ore is usually smelted to produce pig iron (metallic iron), which is used to make steel. Iron is one of the most important metals in developed and developing countries. Wrought iron (very hard and malleable iron with less than 3% carbon), cast iron (also known as pig iron), and structural corrugated iron. Pure iron is highly magnetic and melts at a temperature of 1528 degrees Celsius. Magnesite (magnesite) is used to remove impurities when washing coal, and the magnet can be recycled and reused conditionally. Although wrought iron has very specific uses (e.g. pipes, fittings, engine blocks), its primary use is in steel production. Steel is one of the most important metals and is used 20 times more than other joints. Steel is strong, durable, and versatile. Many types of steel are almost entirely iron with a small amount of carbon (usually less than one percent), while other metals are found in various alloys (such as stainless steel). Pig iron is relatively soft, but with the addition of a small amount of carbon, it becomes harder and stronger. 
Most of the added elements in steel are deliberately added during the steelmaking process (e.g. chromium, manganese, nickel, molybdenum). By changing the content of these added elements, steels suitable for different purposes can be obtained. The desirable properties and relatively low cost of steel make the metal the primary structure for engineering and construction projects, accounting for approximately 90% of all metals each year. Around 60% of the steel products are used in construction and transport, 20% in machine production, and the rest in cans and containers, the oil and gas industry, and various appliances and other equipment. Iron ore is one of the raw materials for most metal products, and Ahanyi Trading Group would like to introduce this mineral and its types to you. Iron is an element with an atomic number of 26, an atomic weight of 55.85, a melting point of 1535 and a boiling point of 3000 degrees Celsius. In terms of abundance, iron is the fourth element that makes up the Earth's solid crust, and 4.2% of the crust is made up of this element. Iron ore is one of the most abundant metallic elements on earth. 
Its oxides make up about 5% of the Earth's crust. The best known iron ore minerals are oxides, notably magnetite (Fe3o4) with 72% iron and hematite (Fe2o3) with 70% iron. Iron is gray to yellow and red. Other common minerals are goethite and limonite and carbonates such as FeCo3. The world's largest iron mines are located in Brazil, Australia, China, India and the USA. The most important iron deposits in the world are known as banded iron deposits. Magma deposits can also be the source of large magnetite deposits. The amount of iron ore in the world's mines is estimated at 800 billion tons, of which 230 billion tons are iron. The world's currently available iron ore reserves are 160 billion tons. Iron ore is sold on the market in different grades, depending on the amount of iron grade and the amount of its necessary or excess components, independent of iron. In terms of mechanical properties, different grades of iron ore are classified as fine or fine (less than 4.75 mm in size), coarse (Lumb), or particles and pellets with a particle size greater than 4.76 mm. 
Pellets are produced by agglomeration of fine-grained minerals and concentrated iron ore, with particle sizes from 9.55 mm to 16 mm. Since 2003, the average annual growth rate of global iron ore demand is more than 12%, one of the main reasons is the growth of iron ore consumption in China, while the growth rate of demand in other countries is slower. magnetite Magnetite with the chemical formula Fe3O4 is a collection of iron minerals, derived from the Greek Magnec, meaning magnet. Insoluble in hydrochloric acid. The FeO content of the magnetite is 31.03%, the Fe2O content is 67.97%, and the inclusions of Ti, Mg, MnV, Cr and Al account for 3%. Magnetite was first discovered in Switzerland, octahedral crystal form, black, opaque transparency, fracture: shell, polished: metallic-matte-greasy, face: incomplete according to the surface, crystalline system: cubic (yes cubic). Magnetite is an oxide and also has strong magnetic properties. The origin of its formation may be magma-metamorphism-adjacent metamorphism-hydrothermal fluid. Magnetite is a common mineral found in most ezrin rocks as secondary emissions. In some types of rock, it is formed through a process of magma separation and is one of the main structures of the rock, thus forming larger ore bodies. These substances are rich in titanium. It is usually associated with crystalline metamorphic rocks and forms large layers and lenses. Magnetite is a common component of sedimentary banded iron formations and Precambrian metamorphism, in which case it may have a chemical depositional origin. 
Hematite Hematite with the chemical formula Fe2O3 is a group of minerals that are soluble in concentrated hydrochloric acid - washed with water and hydrochloric acid. Fe content 94.69%, O content 30.06%, inclusions Mn, Al, Ti were found for the first time in Switzerland, crystal form: flake-granular-block-spherical and radial, color: brown-red-gray, black and black, transparency: translucent and opaque (opaque), fracture: shell, luster: metallic and opaque, surface: none, crystallographic system: rhombohedral and classified as oxide, and its source of formation is magmatic-hydrothermal fluid. Hematite is a gray iron oxide mineral. 
Iron ore mining companies
With many iron ore mining companies in the country, it is good to know that iron is an element that has been busy sustaining life on Earth. From being the most important material for making steel to helping to carry oxygen in the blood and feed plants and organisms, iron is one of the elements' vital influences on life. Iron is a hard and brittle substance that belongs to group 4 of the periodic table and is classified as a metal. This substance is more abundant in nature than other metals in its pure state, but it is quickly destroyed if exposed to moist air and high temperatures. When we say that iron affects the whole Earth, it is based on the fact that this metal is the fourth most common element in the Earth's crust and contains a large amount of the Earth's core. Even according to Western research and experiments, this element exists in large quantities in the elements of the sun and stars in addition to the earth. In fact, it is easy to say that iron is very important for the survival of living organisms. In plants, it plays a role in the production of chlorophyll, and in animals and humans, it is part of the hemoglobin in the blood, which allows oxygen from the lungs to reach body tissues in the blood. 
Iron ore in terms of structure and chemical composition From a structural and chemical composition point of view, iron ores are diverse and diverse. Given that steel production furnaces can achieve maximum efficiency with the same combination of raw materials, it is necessary to provide different types of iron ore and by-products to make the feed have stable physical properties - chemical and mechanical properties. Production and granulation of iron ore are one of the preparation processes to convert the soft granules of iron ore into high quality. In general, the purpose of pelletizing iron ore in blast furnaces in the steel industry is to:
- Best use of blast furnaces to consume high grade iron ore.
- Prepare raw materials suitable for regenerative blast furnaces with good physical, chemical, mechanical and metallurgical properties.
- Reduce slag formation and improve production efficiency.
- Reduces cleaning costs in the later stages of steel production (smelting and refining).
Because of its wide distribution, iron ore must have a relatively high percentage of metal to be considered a source of iron. For example, deposits that grade below 25% are not considered sources of iron unless the deposit is expanded or processed at low cost. 
Therefore, the value of iron ore depends on four factors: quality - ease of processing - cost of mining - getting the ore to market. Iron ore used in steelmaking and ironmaking complexes for the production of pig iron and steel must have certain characteristics in terms of the percentage of iron and other elements in it before it can be used in smelting furnaces. Therefore, in most cases, the iron ore extracted from the mines must be processed to achieve the iron ore specifications required by the steel industry. The purpose of iron ore processing is to improve the quality of iron and reduce the quality of harmful and interfering elements. In addition to harmful elements, there are some elements, as long as their content does not exceed a certain limit, that can improve the quality of steel or improve the production of steel.