May 07 2024
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Iron ore processing methods
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Iron ore processing methods
Introduction :
Steel and steel industry is constantly seeking raw materials, especially iron ore quality is better.the cost of smelting and energy costs in total production. In addition, the operations of processing, we can remove some of the heat or emission intensity decreased. It should be noted that the scope of processes and procedures depends on the ore and its complexity. The complexity of stones could be due to several factors such as the complexity of mineralogical composition, grain size and complexity of the ore is due to weathering.
The first step, releasing iron particles from particles of iron ore waste in this way breaking the iron ore processing operations in one of the most important forms. The next stage, separation of useful minerals, iron minerals, most harmful separation methods, based on the physical properties of minerals is built.
Iron ore processing methods:
In general, iron ore processing plant consists of three stages separated as follows:
1-crushing and grinding
2. The high grade of
3. The solid-liquid separation
In each of these stages, different methods can be used to continue the case briefly investigated.
Steel and steel industry is constantly seeking raw materials, especially iron ore quality is better.the cost of smelting and energy costs in total production. In addition, the operations of processing, we can remove some of the heat or emission intensity decreased. It should be noted that the scope of processes and procedures depends on the ore and its complexity. The complexity of stones could be due to several factors such as the complexity of mineralogical composition, grain size and complexity of the ore is due to weathering.
A view of a crusher Iron ore processing circuit
The first step, releasing iron particles from particles of iron ore waste in this way breaking the iron ore processing operations in one of the most important forms. The next stage, separation of useful minerals, iron minerals, most harmful separation methods, based on the physical properties of minerals is built.
Iron ore processing methods:
In general, iron ore processing plant consists of three stages separated as follows:
1-crushing and grinding
2. The high grade of
3. The solid-liquid separation
In each of these stages, different methods can be used to continue the case briefly investigated.
Crushing and grinding of ore:
and the use of methods that can reduce energy consumption and cost impact could play an important role in the economy of the workshop. One of the most important goals of grinding, releasing valuable minerals from the waste with the coarsest possible dimensions. Thus, by reducing the amount of grinding energy consumption, the amount of fines and separation costs less and is easier to process. In fact, the production of a high grade product (concentration of iron oxide ore) or a cosmetic product or trimming of (trimming kaolin by removing the impurities of iron) depends on careful study is to determine the degree of freedom.
and the use of methods that can reduce energy consumption and cost impact could play an important role in the economy of the workshop. One of the most important goals of grinding, releasing valuable minerals from the waste with the coarsest possible dimensions. Thus, by reducing the amount of grinding energy consumption, the amount of fines and separation costs less and is easier to process. In fact, the production of a high grade product (concentration of iron oxide ore) or a cosmetic product or trimming of (trimming kaolin by removing the impurities of iron) depends on careful study is to determine the degree of freedom.
View of a gyratory crusher A view of a jaw crusher
In the case of iron ore, there are different processes that can be jaw or gyratory system to produce materials with large dimensions, the secondary gyratory and cone and rod mills to produce materials with medium-sized and bullet - Crushed stone materials with very small dimensions noted. The process of grinding the ore processing workshop and a self mills SAG mills instead of classical (bar - ball) performed the operation while saving space, labor, and cost of additional equipment, iron wear are not followed. It is worth noting that in Chadormalu iron ore, ore dressing ore extracted before entering the factory into a gyratory crusher of the type. After the first phase extracted stone crusher and coarse crushed directly into Asia, while the rest of the crushed particles are too small. These mills have a high crushing ratio and acceptance of large rocks (about 300 to 500 mm) products are produced with dimensions of approximately 1 mm. Available statistics indicate that it is a one to two-stage crusher mill (crusher of the second and third phase) and at least one rod mill and a ball mill pieces of work to do and all of This can be reduced at least 20% of the investment cost. Thus, the mill saves 15 to 20% of the cost of the current fragmentation.
View of a ball mill A view of a conical mill
Since high levels of product Ore dressing and grinding of iron ore pellets used to produce the product, resulting in output of SAG mill or coarse than perfect for pelletizing (about 40 to 50 microns). The grinding mills are soft, due to the need to strengthen the erosion Asia to more fragmentation, not cost. So for further crushing, mill product output into the ball mill (with relatively small pellets) is. It should be noted that iron ore Chadormalu Ore dressing factory output SAG mill, following a period of low intensity magnetic separation of magnetite ore and a low intensity magnetic separation stage and then a high intensity magnetic separation stage of hematite ore, imported ball mill circuit is concerned.
Most of the iron ores used in the production units are steel, magnetite are so used to crushing mills bullet soft magnetic lining could be an interesting solution for advanced grinding. It should be noted that usually cover foreign steel and Strlastyky Asia, there is a permanent magnetic layer and the volume of permanent magnet Strlastyky also evenly distributed. This causes the Strlastyky attached to the wall, so installation will be lining the need for nuts and bolts, on the other hand there are magnets in the lining of Asia attracts magnetic particles (magnetite iron ore) and it's on the cover of corrosion and erosion protection, and thus the protective layer that is formed on the lining of the inner lining will be an important factor in longevity. Application of magnetic lining reduces lining thickness and weight of Asia is thus useful volume in Asia increased its energy consumption per unit weight of the product, is reduced.magnetite iron can be a good example for this.
A view of a jaw crusher and its equipment A view of a cone crusher and equipment
High grade iron ore:
In the case of low-grade, high-grade ore is done. The purpose of this operation, reducing the amount of waste iron ore, increasing the iron content in the product and undesirable impurities are removed. The operation includes various methods based on the physical, chemical and physicochemical been established. The most important of these actions include:
1. physical method based on the difference in specific gravity with gangue minerals of the ore.
2-way, based on the magnetic properties of magnetic iron minerals are used.
3. physico-chemical methods based on surface properties of the iron minerals.
4. The chemical methods are based on the chemical properties of iron minerals.
In the case of low-grade, high-grade ore is done. The purpose of this operation, reducing the amount of waste iron ore, increasing the iron content in the product and undesirable impurities are removed. The operation includes various methods based on the physical, chemical and physicochemical been established. The most important of these actions include:
1. physical method based on the difference in specific gravity with gangue minerals of the ore.
2-way, based on the magnetic properties of magnetic iron minerals are used.
3. physico-chemical methods based on surface properties of the iron minerals.
4. The chemical methods are based on the chemical properties of iron minerals.
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Engineering Company south Persia mines was established on 87/6/6 with experienced and trained in the field of technical and engineering services and Mineral Affairs.
The purpose of this organization to provide technical and engineering services in a wide range of services to be performed.
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