Grinding Mill

Grinding Mill

SBM Raymond Mill(grinder) is applicable to the grinding and processing of more than 280 kinds of non-flammable and non-explosive materials with hardness less than 7 and humidity less than 6% in mining, construction, chemical industry and metallurgy, such as barite, calcite, feldspar, talcum, marble, limestone, clay, glass. The fineness of the finished product can be adjusted from 100 mesh to 325 mesh according to requirements

Raymond mill(raymond grinder) Operating principle

raymond mill  panoramic view

The whole machine is collocated with jaw crusher, elevator, hopper, electromagnetic vibrating feeder, main unit, classifier, collector, cloth deduster and high-pressure blower.
The working principle is as follows: load the stuff for grinding evenly and continuously into the grinding chamber of the main frame. Due to the centrifugal force in rotation, the roller swings go outward and presses closely upon the ring. The shovel carries the stuff to the space between the roller and ring. When the roller rolls, the stuff is thus grinded.
After being grinded, the stuff is to be routed to the classifier along wind belt of the blower and the rough powder will be put back to the grinder for regrinding. 
The fine powder flows into the cyclone collector together with air flow and is expelled from the powder output pipe as product.
In the grinding chamber, since the stuff contains moisture to some extent, the heat generated during grinding makes the moisture evaporate; since the pipeline joints are not airtight, the external air is sucked in and the circulation air mass increases. In order to enable the grinder to work in negative pressure, the increased air flow is guided to the deuster and sequentially to the atmosphere after purification. 

Grinding mill Specification

Type

Roller

Ring

Max.
Feeding size(mm)

Fineness
of product
(mm)

power
for 
Machine
(kw)

NO

dimension
(mm)

height
(mm)

Inner Diameter (mm)

HEIGHT
(mm)

3R2115

3

210

150

630

150

15

0.44-0.165

15

3R2615 3 260 150 780 150 15-20 0.44-0.165 18.5
3R2715 3 270 140 830 140 15-20 0.44-0.165 22
3R3016 3 300 160 880 160 15-20 0.44-0.165 30
4R3216 4 320 160 970 160 20-25 0.44-0.165 37
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vsi 5x crusher
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Production line
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SBM MACHINERY CO., LTD.
No.416 Jianye Road,South Jinqiao Area,Pudong New Area, Shanghai, China.
Telephone: 0086-21-58386189, 58386176   Fax: 0086-21-58386211
Postal Code: 201201
E-mail: sbm@sbmchina.net
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