Grinding balls for Initial fill assembly of SAG mill (Φ20-Φ200)
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The special steel balls initially installed in a semi-autogenous grinding mill refer to the steel balls added to the mill before it reaches its design capacity (or normal production). During the trial operation of the semi-autogenous grinding mill, because the equipment, personnel, and working conditions are all in the debugging stage, the operating parameters and smoothness of the equipment, the proficiency of personnel operation, and the working conditions of the mill and steel balls are unstable. Unstable ore supply and frequent start-ups and shutdowns caused by various reasons will lead to frequent and violent collisions between steel balls and between steel balls and liners. Severe semi-cracking occurs, greatly reducing the grinding effect; the impact on the liner is also relatively large, which will cause liner damage, significantly reducing the liner life, ultimately affecting the smooth trial operation of the grinding system, and will also significantly increase the trial production cost.
Jinpu New Materials Co., Ltd., combining the actual situation of the mine and after repeated investigations and experiments, has developed special steel balls suitable for primary crushing in semi-autogenous grinding mills. By improving the materials and the supporting heat treatment process, the performance of the steel balls is adjusted. The produced steel balls have high toughness and good wear resistance, ensuring that the impact on the liner during the trial operation of the semi-autogenous grinding mill is reduced, and they can adapt to such extremely harsh working conditions without breaking, and have good wear resistance. Avoid affecting the rapid achievement of production goals due to steel ball problems. After actual use in mines, it helps customers quickly complete the production target, greatly promoting energy saving and emission reduction in mines.
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