Calcium carbonate and lime grinding Raymond powder mill
Raymond mill Instruction:
Raymond mill is used for grinding the barite, limestone, kaolin, cement, slag, etc, below scale 9.3 of Mohs hardness and 280-odd sorts of non-inflammable and nonexclusive stuff in the trades of mining, metallurgical industrial, chemical engineering and building material for high fine powder generation and processing. The product size is adjustable in the range of 80-325 (600 the largest) meshes. It is possible to produce 30-80 mesh coarse powder through special device in the machine.
Raymond mill Components:
Raymond mill structure is set by the host, analysis machine, plumbing fixtures, blower, finished cyclone, jaw crusher, bucket elevator, electromagnetic vibrating feeder, electric motors and other components. Which Raymond Host from the rack, inlet volute, blade, roller, grinding ring, cover and motor.
Raymond Mill Working Principle
Firstly, raw material is crushed by jaw crusher to the size required, and then the crushed materials are elevated into a hopper from which the material is transported through the electro-magnetic vibrating feeder, evenly and continuously into the grinding chamber for powder-processing. The rollers oscillate outward to press the ring because of the centrifugal force and the shovel scoops up the materials, send to the middle between ring and roller to accomplish the grind.
After this, the ground stuff is carried by the air from the blower into the separator for screening. The fine powers are blow into the cyclone collector and are poured out through the output-powder valve as the final products and the rough stuff after the screening will be recycled back into the grinding chamber for regrinding. The set's airflow system is closely sealed up and circulated under condition of negative and positive pressure.
Technical parameters:
Model |
3R2715 |
3R3016 |
4R3216 |
5R4121 |
6R4427 |
Roller |
Number |
3 |
3 |
4 |
5 |
6 |
Diameter (mm) |
270 |
300 |
320 |
410 |
440 |
Height (mm) |
150 |
160 |
160 |
210 |
270 |
Ring |
Diameter (mm) |
830 |
880 |
970 |
1280 |
1600 |
Height (mm) |
150 |
160 |
160 |
210 |
270 |
Maximum Feed Size (mm) |
15-20 |
15-20 |
20-25 |
< 30 |
< 35 |
Finished Powder Size (mm) |
0.044-0.165 |
0.044-0.165 |
0.044-0.165 |
0.95-0.033 |
0.95-0.033 |
Power of the Main Frame (KW) |
22 |
30 |
37 |
75 |
132 |
Fineness of Final Product
(mm) |
0.125 |
Capacity (t/h) |
2.3-2.8 |
0.6-1.2 |
3.2-4.5 |
6-9.5 |
18-22 |
0.075 |
1.8-2.3 |
1.9-2.6 |
2.4-3.1 |
4.5-8 |
10-15 |
0.044 |
0.9-1.7 |
1-1.9 |
1.8-2.5 |
3-5 |
8-10 |
Features & Advantages:
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.
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