The grinding curves of the roller shell and lining plate are uniquely designed based on the ultrafine pulverization principle,
which makes it easier to form material bed, improving the grinding efficiency and increasing the proportion of finished products
from the primary grinding.
The special pre-compaction device ensures grinding efficiency and fineness of finished products. Besides, small vibration of the mill decreases energy loss.
According to the material bed pulverization principle, the materials stay a short time in the mill to reduce the repeated grinding. . As a result, the iron content in the finished products is low and the whiteness and purity of the product are high .
The principle of multi-rotor powder classifiers is adopted, so the finished product fineness can be customized as selected
range , with no low-grade material in existence.
By adopting PLC control system, major parameters like grinding pressure, rotating speed of grinding disc and speed of classifier etc. can be accurately controlled to achieve accurate cutting size and stable quality.
Thanks to the use of ultrafine pulverization and multi-rotor separation, LUM series ultrafine vertical grinding mill saves energy by 30% to 50% compared to a common type mill when producing the powder of the same fineness, which achieves better economic effects.
The control mode for pressure adjustment of grinding roller adopts PLC/DCS automatic control system, which ensures the accurate
control of grinding pressure, high efficiency and stable operation.
Automatic control system enables remote control and simple operation.
Frequency-conversion speed regulation enables the mill to be used for materials of a wide range of hardness.
Special structural design and operating principle of the mill ensure small vibration and low noise.
The whole equipment is well sealed and the system operates under negative pressure. Therefore, powder and dust are prevented from flowing out of the system. It is environmentally-friendly and meets the national environmental protection requirements.
|Main unit power(Kw)||220~250||280~315||355~400|
|Power concentrator power(Kw)||1x75/6x15||1x110/7x15||1x132/8x18.5|
|325 mesh residue on sieve(%)||0.015||0.015||0.01||0||0||0.015||0.015||0.01||0||0||0.015||0.015||0.01||0||0|
|Average particke size D50(μm)||4.2±0.5||3.0±0.4||2.4±0.2||1.8±0.2||1.4±0.1||4.5||3.5||2.8||2.0||1.5||4.5||3.5||2.8||2.0||1.5|
|Size distribution D97(μm)||30||20||15||10||8||25||20||15||10||8||25||20||15||10||8|
|Compact apparent specific gravity(g/cm³)||1.18||1.06||0.90||0.85||0.76||1.18||1.06||0.90||0.85||0.76||1.18||1.06||0.90||0.85||0.76|
|Loose apparent specific gravity(g/cm³)||0.45||0.40||0.34||0.32||0.28||0.45||0.40||0.34||0.32||0.28||0.45||0.40||0.34||0.32||0.28|
|Moisture content(%)||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3||Below 0.3|