Scheelite has a high hardness (Mohs hardness 4.5-5), is brittle, and exhibits a certain degree of abrasion. Therefore, the crushing process places high demands on the wear resistance, impact resistance, and particle size control capabilities of the equipment. Choosing a suitable crusher can not only improve efficiency but also reduce energy consumption and maintenance costs.
Generally, scheelite crushing adopts the principle of "multi-stage crushing, less grinding and more crushing." For the coarse crushing stage, a jaw crusher is recommended. Its simple structure and high processing capacity can crush large pieces of raw ore (≤500mm) to 100-150mm, making it highly adaptable and an ideal choice for primary crushing of scheelite. For the medium and fine crushing stages, a cone crusher or a hydraulic double-roll crusher is preferable. Cone crushers are suitable for ores of medium to high hardness, offering a large crushing ratio and good particle shape, making them suitable for continuous high-intensity operations. Hydraulic double-roll crushers, by adjusting the roller gap, precisely control the output particle size, minimizing over-crushing. They are particularly suitable for pre-treatment of scheelite where high particle size uniformity is required, and their design without easily damaged parts significantly reduces maintenance frequency.
In recent years, in response to the highly abrasive characteristics of scheelite, some enterprises have begun to adopt systems such as the "Juling" hydraulic intelligent crushing system launched by Jiangxi Laikuai Technology. This system integrates high-pressure lamination crushing with nano-ceramic anti-wear technology, not only extending equipment life but also increasing the yield of -10mm fine particles and reducing tailings loss to below 0.3%.
In summary, the combination of a jaw crusher and a cone crusher or a hydraulic double-roll crusher is currently the mainstream high-efficiency solution for crushing scheelite. For those seeking greater intelligence and energy efficiency, next-generation hydraulic intelligent crushing equipment can be considered to achieve higher recovery rates and lower operating costs.
