Raymond Mill is an old type of roller grinding mill, which is is applicable to the grinding and processing of more than 280 kinds ofores. After many years of practice and improvement, the structure of Raymond Mill is getting perfect day by day. For low consumption, low investment, environment friendly, small occupation area and more efficient than the traditional mill, Raymond Mill is widely used in the field of metallurgy, building materials, chemical industry and mining to process powder.
Raymond Mill of Shanghai Shibang is used to grind the non-flammable and non-explosive stuff with the Moh’s hardness below 7 and humidity less than 6%, such as gypsum, talc, calcite, limestone, marble, feldspar, barite, dolomite, granite, kaolin, bentonite, bauxite, iron ore etc. The final products can be adjusted from 613 micron to 44 micron. With the function of separator and blower, Raymond Mill can meet different customers’ demand.
The Advantages of Raymond mill:
The whole system of Raymond mill consists of main frame, decelerator, classifier, piping device, blower, jaw crusher, dustpan elevator, electromagnetic vibration feeder, and electric switch box motor, etc.
1. The whole plant is a vertical structure of strong systematic characteristic, so it occupies small area. From crushing of raw material to grinding and packing is an independent production system.
2. Compared with other milling plants, its passing ratio achieves 99%, this is what other mill can not reach.
3. Driving system of main frame adopts airtight gearing and pulley, drives smoothly and operates reliably.
4. Main parts of the whole plant are made from cast and steel of high quality. The technics is so subtly that insures the durability of whole plant.
5. The electric control system is centralized controlled, so the automaticity is high, no people are needed in the operating room.
Working Principle of Raymond mill:
Firstlythrough the electro-magnetic vibrating feeder, the crushed materials are transported 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 grinding process.
After this, the ground stuff are 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.
Specifications of Raymond mill:
| Model |
Roller |
Ring |
Max.
Feeding Size(mm) |
Fineness
of Product
(mm) |
Power
for
Machine
(kw) |
| Number |
Dimension
(mm) |
Height
(mm) |
Inner Diameter (mm) |
Height
(mm) |
| 3R2115 |
3 |
210 |
150 |
630 |
150 |
15 |
0.044-0.165 |
15 |
| 3R2615 |
3 |
260 |
150 |
780 |
150 |
15-20 |
0.044-0.165 |
18.5 |
| 3R2715 |
3 |
270 |
140 |
830 |
140 |
15-20 |
0.044-0.165 |
22 |
| 3R3016 |
3 |
300 |
160 |
880 |
160 |
15-20 |
0.044-0.165 |
30 |
| 4R3216 |
4 |
320 |
160 |
970 |
160 |
20-25 |
0.044-0.165 |
37 |
Note: This specification is just reference, any changes are subject to the raymond mill products.
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