Autogenous mill is a type of grinding equipment that crushes material by mutual impact, grinding and peeling effect among material grains. In 1880, cylindrical grinding mill was invented. In 1899, it was used at a gold mine. Since then, it was discovered that autogenous grinding of ore is possible. In 1932, the world’s first Φ7.3 m × 0.9 m wet autogenous mill was built in the United States.
The operating principle of autogenous mill is essentially the same as that of ball mill. Most remarkably, the crude ore from stope or the coarsely crushed ore can be directly fed into the grinding mill. The autogenous mill will grind the material to the extent that the content of the particles with particle size <0.074 mm accounts for 20–50% of total quantity of product, and crushing ratio is 4000–5000, which is over 10 times that of ball mill and rod mill. The maximum particle size of the lump ore fed into autogenous mill is 300–350 mm. In the grinding mill, the ore blocks sized >100 mm function as...
Further Reading
Liu S-Y (2001) Design of crushing and grinding machinery. Northeast University Press, Shenyang
Yang J-W (2006) Crushing and grinding technology. Metallurgical Industry Press, Beijing
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Guowang, Z., Li, S., Kuangdi, X. (2023). Autogenous Mill. In: Xu, K. (eds) The ECPH Encyclopedia of Mining and Metallurgy. Springer, Singapore. https://doi.org/10.1007/978-981-19-0740-1_637-1
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