Beneficiation method and beneficiation equipment system for graphite ores

The invention discloses a beneficiation method and a beneficiation equipment system for graphite ores. The technical problem that the quality of graphite raw material products is low and cost is high is required to be solved. The beneficiation method includes the following steps of primary crushing, secondary crushing, accurate grinding, flotation and dewatering drying. The beneficiation equipment system for the graphite ores is sequentially provided with primary crushing equipment, secondary crushing equipment, accurate grinding equipment, flotation equipment, vacuum filtering and dewatering equipment, drying dewatering equipment and packaging equipment. Compared with the prior art, the beneficiation method and the beneficiation equipment system for the graphite ores have the advantages that natural flake graphite layer structures are protected by ball-milling treatment, the quality of graphite concentrates is improved, a mechanical mode is adopted in a total technological process, environmental pollution due to a chemical method is avoided, the equipments are connected via conveying belts and tubes to form an automatic production technological process, personnel allocation is greatly reduced, the yield of the graphite concentrates is increased by 1-2%, carbon content of the graphite concentrates reaches 95-99%, and gangue recovery rate is increased by 0.5-3%.