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CL Attritors

Stirred Vertical Ball Mill Limestone Grinding System

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 grinding circuit 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.

CL200
CL200 limestone grinding mill

The CL Grinding Process

The CL Grinding Process for vertical stirred ball mills

The CL Grinding Process

  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.

 CL Attritors for Limestone Grinding
MODEL
HP
Working Media
Volume (gallons)
Maximum thru-put
(solids)(#/hour)
Dimensions (inches)
*W x D x H
Operating Weight Lbs.
CL25
40
12.5
2000
45 x 80 x 106
8000
CL50
50
25
4000
50 x 94 x 116
10000
CL100
75
50
8000
56 x 106 x 132
14000
CL200
125
100
16000
65 x 116 x 151
20000
CL300
150
150
24000
70 x 125 x 163
28000
CL400
200
200
32000
74 x 130 x 177
40000
CL500
250
250
40000
78 x 134 x 188
48000
CL600 250 300 48000 81 x 139 x 200 55000
CL700 300 350 56000 87 x 144 x 211 62000
CL800 350 400 64000 90 x 149 x 219 68000
CL900 400 450 72000 92 x 154 x 231 73000
CL1000 450 500 80000 98 x 159 x 240 80000
CL1250 500 625 100000 103 x 164 x 254 94000
* Width dimension does not include room for drive head rotation.

Model CL-5 Laboratory Attritor

CL-5 vertical stirred ball mill for limestone grinding

The CL-5 Stirred Vertical Ball Mill for Limestone Grinding is a smaller version of the production sized CL Series Mills. It is ideal for research, scale-up and small-scale production. This mill will process in the range of 200-500 pounds of limestone per hour and is equipped with a variable frequency drive (VFD) and a 15 horsepower inverter duty motor. The CL-5 uses 2.5 gallons of grinding media.

 CL Attritors for Limestone Grinding
MODEL
HP
Working Media
Volume (gallons)
Maximum thru-put
(solids)(#/hour)
Dimensions (inches)
*W x D x H
Operating Weight Lbs.
CL-5
15
2.5
400
34 x 51 x 82
1600