Mining

Tantalum and niobium mining sub-primary ore mining and placer mining of tantalum and niobium.

There are more open-pit mining in the world, such as the Araksa mine in Brazil and the Green Bush mine in Australia. Jiangxi Yichun Yankuang Mine is the largest open pit mine in China, using drilling blasting, electric shovel shipment, and automobile-sliding-motor-to-electricity combined mining process. Some of the plutonium ore mines need to be mined underground, such as the Niabe glauconite mine in Quebec, Canada, the Lishu Shuixi Miao mine in Guangxi, China, and the Altay mine in Xinjiang. The house and pillar method is widely used in underground mining. Develop a spiral ramp for transportation. Rock drilling multi-purpose drilling rig and double-hole drilling rig. For convenient transportation, underground crushing is widely used, mining efficiency is good, and labor productivity is high.