CL & CLS SPECIALTY ATTRITORS

The Union Process CL Attritor Stirred Vertical Ball Mill Limestone Grinding System Crusher The economical CL Attritor Stirred Vertical Ball Mill is used for wet grinding limestone for flue gas desulphurization. The process uses limestone feed stock of approximately 6mm in size and wet grinds the limestone to 95% minus 325 mesh. The CL Attritor operates in continuous processing mode. The CL Attritor is the primary component of a grinding circuit which typically includes the separation tank, mill recirculating pump, mill product tank, hydrocyclone, hydrocyclone feed pump and all necessary controls. Due to the CL Attritor’s high efficiency, the power consumption for this mill is 50% less compared to conventional ball mills of a similar size. This results in substantially lower operating costs. 1. The process begins with 1-1/2" limestone, which is fed from the silo to the crusher. 2. The limestone is reduced to 6mm pieces in the crusher. 3. The crushed limestone is then mixed with water in the Premix Chamber and fed into the CL Attritor Mill. 4. The limestone slurry exits the CL Attritor Mill and enters the Separation Tank. 5. Any oversized particles are pumped back into the Mill while finer slurry overflows into the Mill Product Tank. 6. The slurry is then fed through a hydrocyclone with the under flow returned to the separation tank.

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