With the development of the ore industry, the processing technology of ores with different hardness is gradually mature. If talc, calcite, apatite and other minerals with medium and low hardness want to be processed into ultra-fine powder, the ultra-fine mill can meet the particle size requirements. We often use the Mohs hardness of ore to describe the strength that the pulverizer equipment can achieve when crushing materials.
The hardness of graphite ore processed by ultra-fine grinding machine is generally medium hard or medium hard and soft. The grinding roller and ring are forged with special materials, which greatly improves the durability. With the same fineness of materials and finished products, the wearing parts of graphite superfine mill have a longer service life than those of Raymond mill. This grinding equipment has a better effect in processing calcite, calcium carbonate and kaolin.
For the mining crushing industry, when the crushing and screening production line is combined, it often reflects a detail to the customer, that is, to know in advance whether the stone to be crushed is high hardness or medium and low hardness. After knowing the specific requirements of the user, the mill factory can configure the corresponding production line according to the site and other requirements. For example, low hardness graphite is an important solid lubricant, which is widely used. In the early stage, we may use jaw crusher to conduct primary crushing of large stones, so that large stones can be crushed to meet the feeding requirements of ultra-fine pulverizer.
Here, SMMVIK Machinery reminds the majority of mill users that weathering, cracks, impurities, aggregation methods and other factors will affect the hardness of minerals. According to the different Mohs hardness, crushers and mills need to overcome different hardness and fineness output when crushing and grinding. Therefore, according to the different fineness of the powder to be processed by minerals, SMMVIK Machinery will configure users with appropriate milling schemes.
