In the grinding process, the first section of the Barry plant uses pre-screening, and the second section of the mill uses a curved screen to effectively reduce the muddyness of the cassiterite. The low mud formation rate of the grinding of the Barry plant has improved the recovery rate of ore dressing .
High-frequency fine screen and ball mill closed circuit can greatly reduce the over-smashing of cassiterite. Barry plant is equipped with GYQ31–1007 high-frequency fine screen 4 sets, GPS–1400–3 high-frequency fine screen 2 sets, GYQ31–1007 type high The frequency fine screen has the advantages of large amplitude, high screening efficiency, power saving, large processing capacity, durability and easy replacement of the screen. Some new materials have been used in the grinding and screening system. For example, the original ore screen adopts a polyurethane long hole wear-resistant sieve plate and has a service life of more than one year. In addition, the original ore screen is changed from a single-layer sieve to a double-layer sieve, and the screening efficiency and production stability are improved. In the second paragraph grinding using grinding media in the new cast iron instead of steel balls to succeed, it has shown noise is small.
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