Hi Norton. Thank you for your question.

Shale is a sedimentary rock with complex composition. According to the composition of its mixtures, it can be divided into calcareous shale, iron shale, siliceous shale, carbon shale, black shale, oil shale and so on. Iron shale may become iron ore, and oil shale can be refined oil, black shale can be used as an indicator of oil formation. Shale ceramsite can be used as light aggregate skeleton material, and it can produce building wall materials mixed with industrial waste such as pottery sand, slag or coal ash, which takes advantages of light weight, heat preservation and energy saving.

The special design from Liming Heavy Industry increases the number of blades and reduces the thickness of blades as much as possible under the condition that the impeller diameter remains unchanged. Because the more blades are, the greater the probability of impact on the shale particles passing through the blade is, and the greater the centrifugal force field is. Instead, the thinner the blade is, the smaller the resistance to the shale particles passing through the impeller will be. Therefore, the production and fineness of Liming Heavy Industry are the highest.

Liming Heavy Industry (Shanghai)