4. Grinding process

Depending on the properties of tungsten ore and product requirements, determine whether to use dry grinding or wet grinding. In view of the slime situation, wet grinding may be preferred, and water can be used to wash away some of the slime. Reasonably control the grinding concentration and time, determine the optimal parameters based on the ore characteristics and slime content, and ensure that the ore particles are fully dissociated. Usually, a ball mill and a spiral classifier are used in combination to achieve the best grinding effect.

5. Sorting process

According to the mineral composition and physical and chemical properties of tungsten ore, determine to use one or more combinations of gravity separation, flotation, magnetic separation and other separation methods. For wolframite separation, gravity separation is mainly used; for scheelite beneficiation, flotation is mainly used. According to the selected separation method, select the corresponding equipment, such as shaking table, spiral chute, jig concentrator (gravity separation); flotation machine (flotation process); magnetic separator (magnetic separation), etc.