This is an invention patent, named continuous industrialized natural graphite purification device, which was applied by Wenzhonghua in Chenzhou, Hunan Province on 20 13 and was authorized that year.

Attached is the abstract of the patent:

The invention relates to a continuous industrialized natural graphite purification device, belonging to the technical field of graphite purification. The furnace body is a closed long cylinder inclined in sections from high to low, and the long cylinder is divided into a feeding area, a feeding buffer area, a low-temperature heating area, a medium-temperature heating area, a high-temperature heating area, a clinker buffer area and a cooling and cooling discharging area from high to low; The inert gas supply device is connected to the low, medium and high temperature heating area of the closed long cylinder; A byproduct recovery device and an inert gas curtain are arranged in the feed buffer zone, and an inert gas curtain with the same structure is also arranged in the clinker buffer zone. The invention can produce 99%, 99.9% and 99.99% high-purity microcrystalline toner; There is no atmospheric emission, and high-quality natural graphite can be continuously purified at normal pressure, high temperature and low cost.