ROTARY JET-GROUTING MODULAR RARE-EARTH MINING PROCESS
2022-06-06
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A rotary jet-grouting modular rare-earth mining process. First, the distribution of rare-earth mineral deposits and the thickness of the mineral deposits in a mountain are ascertained, and a liquor collecting pipe network is arranged at the junction of the bottom of a rich deposit and a poor deposit to collect a leaching mother liquor; a mining unit module deploys a jet flow drill hole (2) in the mountain extending to the bottom of the rich deposit (3), and starts crushing and pulpifying the mineral from the bottom of the rich deposit (3) using a high-pressure liquor-extracting jet flow, and gradually lifting a drill bit (9) to the top of the rich deposit (3) to form a cylindrical slurry rare-earth mineral (4); then, by performing agitation and leaching on the slurry mineral by up-and-down movements of a disk-shaped high-pressure jet flow ring (10), the mother liquor aggregates into a liquor collecting manifold (7) via the lower liquor collecting pipe network, to complete the collection of the mother liquor. The rotary jet-grouting modular rare-earth mining process can realize modular mining of minerals, increase the recycling concentration of a mother liquor and reduce the amount of extract liquor used, and effectively ensure the efficient recycling of resources.