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Dolomite Grinding Mill

  • Finished Size: 150-3000 mesh, 5-74 micron
  • Capacity: 0.4-30T/H
  • Raw materials: calcite, chalk, limestone, dolomite, kaolin, gypsum, and talc etc, totally more than 100 kinds of materials.
Dolomite grinding Mill also is named dolomite mill, dolomite grinding machine,dolomite grinding plant, is suitable for grinding dolomite into fine powder.

Dolomite grinding Mill is the new type mining equipment for making micro powders, fine powders，which is widely applied in the industries of metallurgy, mining, chemistry, cement, construction, refractory materials, ceramics, and so on.The purpose of the micro powder grinding millis for super-fine grinding materials with hardness less than 9 in Moh's scale and humidity less than 6 percent such as kaolin, limestone, calcite, marble, talcum, barite, gypsum, dolomite, bentonite mud, mica, pyrophyllite, sepiolite, carbon black, diatomite, graphite, alunite, fluorite, potassium feldspar, phosphorite, pigment, up to 200 kinds.
 
Dolomite grinding Mill Production line: consists of hammer crusher, bucket elevator, storage hopper, vibrating feeder, main unit, inverter classifier, cyclone collector, pulse deduster system, high pressure positive blower, air compressors and electrical control systems.
 
Working Principle of dolomite grinding Mill:
When the grinding mill is at work, all the grinding rollers are rolling in the ring, and the materials are driven to the edge of the turnplate by the centrifugal force and fall down into the grinding chambers where the materials are repeatedly pressed, crushed and grinded by the rollers.
The high-pressure air blower constantly inhales air within the grinding mill and, in turn, the airflow with crushed materials are brought to the classifier whose high-speed impeller will screen the airflow: the unqualified particle size will fall and return to the mill for being reground while the qualified particle size mixed with air will go into the cyclone powder collector. Most of the qualified powders will fall and exit from the discharging valve at the bottom; a small proportion of the fine powders, with airflow, moves to the dust cleaner, and clings to the surface of the filter bags. At the same time, the fine powders clinging to the surface fall down by the sudden vibration of the filter bags, which is caused by the instantly ejected high-pressure gas controlled by the pulse valve. The materials from the above two lots are sent by the conveyor at the bottom to get finished powders packed. In addition, filtered clean air will be emitted from the air outlet of muffler in the end.
 
 
Technical Advantages of dolomite grinding Mill
1.High Efficiency.
Under the same finished final size and the same motor power, the capacity of the machine is twice as much as jet mill, mixing grinder and ball mill, and energy consumption decreased 30%.
2.Long lifecycle of spare parts.
The ring and roller are forged by special material with high utilization,the lifetime can reach 2-5 years for grinding calcite carbonate.
3.High safety and reliability.
As no rolling bearings or screws in grinding cavity, there are no problems caused by bolts shedding or rapid wear of bearings and seal components.
4.High fineness, flexible adjustment.
The final fineness of the grinding materials can be adjusted between 325 meshes and 2500 mesh (47-5 micron), and the product fineness can reach D97≤5μm.
5.Environment-friendly.


Technical Data of dolomite grinding Mill:

Model
HGM80
HGM90
HGM100
HGM125
HGM168L
Ring Diameter(mm)
800
900
1000
1250
1680
Ring Number (PCS)
3
3-4
4
4
     4
Roller Number(PCS)
18-21
24-29
28-36
30-44
30-40
Main Shaft Speed (r. p. min)
230-240
 200-220
180-200
135-155
120-130
Input Size (mm)
≤10
≤10
≤15
≤15
≤20
Finished Size (um/mesh)
74-5
(200-2500)
74-5
(200-2500)
74-5
  (200-2500)
100-6
 (150-2000)
100-9
(150-1500)
Capacity (t/h)
0.4-4.5
0.6-6.5
1-9
2-16
3.8-30
Outlet Size L*W*H (m)
13.9*4*6.2
14.7*4.8*7.2
18*4.6*8.6
14*9*10.25
26.3*7.5*11.9
 
Type
Roller
Max. feeding size(mm)
Fineness(mm)
Output(t/h)
Power(kw)
Size(mm)
No.
Dimension(mm)
Height(mm)
YGM7815
3
260
150
15
0.613-0.033
1-3
18.5
4300*3500*5100
YGM8314
3
270
140
20
0.613-0.033
1.2-4.6
22
5300*4100*5200
YGM9517
4
310
170
25
0.613-0.033
2.1-5.6
37
7100*5900*7900
YGM4121
5
410
210
30
0.613-0.033
2.8-10.5
75
9200*7250*9700
MTM1600
6
440
270
35
0.613-0.033
5-20
132
12550*5700*8350
 
Type
PC400x300
PC600x400
PC800x600
Rotor Diameter /mm
400
600
800
Rotor Width/ mm
300
400
600
Rotor Speed/ r/min
1100
1000
900
Max Feeding Size/mm
<100
<220
<350
Finished particle size /mm
0-10
0-20
0-22
Capacity / t/h
3-8
8-15
15-45
Power /kw
11
18.5-22
45
Hammer Number /pieces
12-16
12-20
20-28
Dimension L*W*H/mm
855*795*860
1150*1095*1230
 2360*1490*1415
 
 

 

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