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What is the particle size characteristics of oreThe particle size characteristics of ore refers to the size and distribution of ore particles, which has an important influence on the beneficiation, crushing and proce
What is the particle size characteristics of ore
The particle size characteristics of ore refers to the size and distribution of ore particles, which has an important influence on the beneficiation, crushing and processing process of ore.
1. Particle size range:
The particle size range of an ore is the interval of particle sizes in the ore. Ore can contain particles of different sizes, from coarse to fine particles may be present. The size range is usually expressed in terms of maximum and minimum particle size, e.g. 1mm to 10mm for ore.
2. Particle size distribution:
The particle size distribution of an ore describes the relative content of different particle sizes in the ore. The particle size distribution of an ore can be uniform, i.e. the particle sizes are relatively close to each other, or it can be uneven, i.e. some particle sizes have a higher or lower particle content.
3. Importance of particle size characteristics:
The particle size characteristics of the ore have an important significance in the ore processing.
The particle size characteristics affect the sorting effect of the ore in the beneficiation process. Larger particles are easier to be separated out, while smaller particles are more difficult to be separated. Therefore, understanding the size characteristics of the ore can help determine the appropriate sorting method and equipment.
In the crushing process of ore, the particle size characteristics have an impact on the crushing effect and energy consumption. Larger particles require more energy to be crushed, while smaller particles are more easily crushed. Proper control of the size characteristics of the ore can improve crushing efficiency and reduce energy consumption.
In the subsequent processing of the ore, the particle size characteristics affect the effectiveness of flotation, magnetic separation and re-election processes. Different particle sizes have different responses to different processes, and understanding the size characteristics of the ore can optimize the subsequent treatment process.
The average particle size of iron minerals in Shuanghezi ore is 49.99μm, and the average particle size of vein material is 76.87μm, both of which are lower than the average particle size of iron minerals vein minerals in Gongchangling mine.
The microscopic observation results show that the iron minerals are mainly medium and fine grained, and the microfine grade iron minerals are more abundant. The particle size distribution of both iron minerals and vein minerals is extremely uneven and conforms to the log-normal distribution.
The level of positive accumulation curve of iron minerals greater than 50% is +74μm, which is obviously on the fine end, and the content of +74μm particle size is only 60.63%, while the content of -15μm particle size is as high as 5.82%, and it is expected that this part of iron minerals is difficult to reach dissociation even with fine grinding.
The particle size corresponding to the positive cumulative content of the vein minerals reaches 50% is 147μm, which is two particle sizes coarser than the iron minerals. And in +74μm particle size content reached 74.38%, -15μm particle size content of only 1.78%, the vein minerals microfine content is less conducive to grinding dissociation and tailing operations.
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What is the particle size characteristics of oreThe particle size characteristics of ore refers to the size and distribution of ore particles, which has an important influence on the beneficiation, crushing and proce
What is the particle size characteristics of ore
The particle size characteristics of ore refers to the size and distribution of ore particles, which has an important influence on the beneficiation, crushing and processing process of ore.
1. Particle size range:
The particle size range of an ore is the interval of particle sizes in the ore. Ore can contain particles of different sizes, from coarse to fine particles may be present. The size range is usually expressed in terms of maximum and minimum particle size, e.g. 1mm to 10mm for ore.
2. Particle size distribution:
The particle size distribution of an ore describes the relative content of different particle sizes in the ore. The particle size distribution of an ore can be uniform, i.e. the particle sizes are relatively close to each other, or it can be uneven, i.e. some particle sizes have a higher or lower particle content.
3. Importance of particle size characteristics:
The particle size characteristics of the ore have an important significance in the ore processing.
The particle size characteristics affect the sorting effect of the ore in the beneficiation process. Larger particles are easier to be separated out, while smaller particles are more difficult to be separated. Therefore, understanding the size characteristics of the ore can help determine the appropriate sorting method and equipment.
In the crushing process of ore, the particle size characteristics have an impact on the crushing effect and energy consumption. Larger particles require more energy to be crushed, while smaller particles are more easily crushed. Proper control of the size characteristics of the ore can improve crushing efficiency and reduce energy consumption.
In the subsequent processing of the ore, the particle size characteristics affect the effectiveness of flotation, magnetic separation and re-election processes. Different particle sizes have different responses to different processes, and understanding the size characteristics of the ore can optimize the subsequent treatment process.
The average particle size of iron minerals in Shuanghezi ore is 49.99μm, and the average particle size of vein material is 76.87μm, both of which are lower than the average particle size of iron minerals vein minerals in Gongchangling mine.
The microscopic observation results show that the iron minerals are mainly medium and fine grained, and the microfine grade iron minerals are more abundant. The particle size distribution of both iron minerals and vein minerals is extremely uneven and conforms to the log-normal distribution.
The level of positive accumulation curve of iron minerals greater than 50% is +74μm, which is obviously on the fine end, and the content of +74μm particle size is only 60.63%, while the content of -15μm particle size is as high as 5.82%, and it is expected that this part of iron minerals is difficult to reach dissociation even with fine grinding.
The particle size corresponding to the positive cumulative content of the vein minerals reaches 50% is 147μm, which is two particle sizes coarser than the iron minerals. And in +74μm particle size content reached 74.38%, -15μm particle size content of only 1.78%, the vein minerals microfine content is less conducive to grinding dissociation and tailing operations.
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