Energy-saving and efficiency-improving graphite ore separation process

By directly performing the first roughing step in the graphite ore beneficiation process and adding a classification operation, the grinding process is optimized, solving the problem of high grinding energy consumption and achieving energy saving, consumption reduction and efficiency improvement.

CN116441021BActive Publication Date: 2025-11-11BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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Patent Information

Application Number
CN202310656676.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-05
Publication Date
2025-11-11
Estimated Expiration
2043-06-05

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Abstract

This invention discloses an energy-saving and efficiency-enhancing graphite ore beneficiation process, comprising the following steps: Step 1: The crushed graphite ore is fed into the first roughing operation to obtain rough concentrate 1 and roughing tailings; Step 2: The roughing tailings are classified to obtain coarse-grained product and tailings 1. The classified coarse-grained product is then fed into a coarse grinding operation to obtain the coarse grinding product; Step 3: The coarse grinding product is fed into the second roughing operation to obtain rough concentrate 2 and tailings 2; Step 4: Rough concentrate 1 and rough concentrate 2 are combined and subjected to multiple regrinding and re-selection operations to obtain the final concentrate and multiple middlings. This invention can reduce the feed rate of the coarse grinding operation by 35-40% without reducing the existing concentrate indicators, reduce the number of regrinding and re-selection operations in the beneficiation stage by 2-3 times, reduce the energy and reagent costs of the production process, simplify the process flow, enhance production stability, and improve beneficiation efficiency.
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Citation Information

Patent Citations

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