Vertical Roller Mill is our newly-launched product which is applied as a solution to the technical issues such as low output
and high energy consumption in the ordinary industry. This new type product is developed based
on years of production and development on the pulverizer through analyzing and researching the
strengths and weakness of both foreign and domestic products of its kind. Its performance has
entered into the leading level among the international products of its kind. Vertical Roller
Mill is a new type advanced pulverizing equipment featuring good performance and drying function.
Integrated with drying, pulverizing and powder-selection, Vertical Roller Mill is widely applied
in cement, chemical, coal and electric power industries. It has become the mainstream equipment
in the pulverizing industry.
Features
Small Comprehensive Investment
The equipment integrates the functions of crushing, drying, grinding, powder separating and transportation, featuring simple
system and compact layout, with the floor space of about 50% of that of the ball-milling system. And it can be arranged outdoors
so as to greatly reduce the investment costs.
The system design is simple and reasonable, saving unnecessary equipment investment so as to reduce total investment of
the equipment.
Technical Data
Vertical Mineral Mill Series
| Model | LM80K | LM110K | LM130K | LM150K | LM170K | LM190K | LM220K | LM240K | LM280K | LM340K | LM370K |
| Wheel diameter(mm) | 800 | 1100 | 1300 | 1500 | 1700 | 1900 | 2200 | 2400 | 2800 | 3400 | 3700 |
| Output (th) | 4-10 | 5-15 | 10~28 | 13~38 | 18~48 | 23~68 | 36~105 | 40-130 | 50~170 | 80-240 | 120-300 |
| Finish fineness | μm | 170-45 | 170-45 | 170-45 | 170-45 | 170-45 | 170-45 | 170-45 | 170-45 | 170-45 | 170-45 | 170-45 |
| Mesh | 80-325 | 80-325 | 80-325 | 80-325 | 80-325 | 80-325 | 80-325 | 80-325 | 80-325 | 80-325 | 80-325 |
| End product moisture (%) | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% |
| Grinding material particle size D80 (mm) | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
| Grinding material max feed size(mm) | <20 | <25 | <38 | <40 | <42 | <45 | <50 | <50 | <50 | <70 | <70 |
| Moisture of grinding material not to dry (%) | <4% | <4% | <4% | <4% | <4% | <4% | <4% | <4% | <4% | <4% | <4% |
| Moisture of grinding material need to dry (%) | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% |
| Into mill air temperature (℃) | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 |
| Out of the mill air temperature (℃)) | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 |
| Main motor power (kw) | 55 | 110 | 200 | 280 | 400 | 500 | 800 | 1000 | 1250 | 1800 | 2500 |
Vertical Slag Mill Series
| Model | LM130N | LM150N | LM170N | LM190N | LM220N | LM240N | LM280N | LM340N | LM370N |
| Wheel diameter(mm) | 1300 | 1500 | 1700 | 1900 | 2200 | 2400 | 2800 | 3400 | 3700 |
| Output (th) | 5-14 | 7-20 | 9-27 | 12-30 | 18-55 | 25-60 | 40-90 | 60-120 | 70-160 |
| Finish fineness | μm | 170~45 | 170~45 | 170~45 | 170~45 | 170~45 | 170~45 | 170~45 | 170~45 | 170~45 |
| Mesh | 80~325 | 80~325 | 80~325 | 80~325 | 80~325 | 80~325 | 80~325 | 80~325 | 80~325 |
| Slag fineness (㎡/kg) | 420 | 420 | 420 | 420 | 420 | 420 | 420 | 420 | 420 |
| End product moisture (%) | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% |
| Grinding material particle size D80 (mm) | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
| Grinding material max feed size(mm) | <38 | <40 | <42 | <45 | <50 | <50 | <50 | <70 | <70 |
| Moisture of grinding material not to dry (%) | <4% | <4% | <4% | <4% | <4% | <4% | <4% | <4% | <4% |
| Moisture of grinding material need to dry (%) | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% | 4~15% |
| Into mill air temperature (℃) | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 |
| Out of the mill air temperature (℃) | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 | 70~95 |
| Main motor power (kw) | 200 | 280 | 400 | 500 | 900 | 1120 | 1800 | 2500 | 3150 |
Vertical Coal Mill Series
| Model | LM80M | LM110M | LM130M | LM150M | LM170M | LM190M | LM220M | LM240M | LM280M | LM340M |
| Wheel diameter(mm) | 800 | 1100 | 1300 | 1500 | 1700 | 1900 | 2200 | 2400 | 2800 | 3400 |
| Output (th) | 3-5 | 7-10 | 10-17 | 16-22 | 20-30 | 26-40 | 35-45 | 50-70 | 70-90 | 100-140 |
| Coal powder fineness (R0.08) | 5~20% | 5~20% | 5~20% | 5~20% | 5~20% | 5~20% | 5~20% | 5~20% | 5~20% | 5~20% |
| Coal powder moisture (%) | <1% | <1% | <1% | <1% | <1% | <1% | <1% | <1% | <1% | <1% |
| Grinding material particle size D80 (mm) | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 | <10 |
| Grinding material max feed size(mm) | 20 | 25 | <38 | <40 | <42 | <45 | <50 | <50 | <50 | <50 |
| Material moisture of into mill (%) | <15% | <15% | <15% | <15% | <15% | <15% | <15% | <15% | <15% | <15% |
| Into mill air temperature (℃) | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 | <350 |
| Out of the mill air temperature (℃) | 75~95 | 75~95 | 75~95 | 75~95 | 75~95 | 70~95 | 75~95 | 75~95 | 75~95 | 70~95 |
| Raw coal hardgrove grindability index (HGI) | >55 | >55 | >55 | >55 | >55 | >55 | >55 | >55 | >55 | >55 |
| Main motor power (kw) | 45 | 90 | 185 | 250 | 315 | 400 | 500 | 630 | 900 | 1400 |
GX Series Fine Vertical Grinding Mill
| Model | LM110X-GX | LM130X-GX | LM150X-GX | LM190X-GX | LM220X-GX |
| Grinding Roller(pcs) | 3 | 3 | 3 | 3 | 3 |
| Turntable Pitch Diameter(mm) | 1100 | 1300 | 1500 | 1900 | 2200 |
| Fineness of Finished Product(mesh) | 400-600 | 400-600 | 400-600 | 400-600 | 400-600 |
| Fineness of Grinding Material(mm) | <5 | <5 | <10 | <10 | <10 |
| Size of Grinding Material(mm) | 10 | 10 | 20 | 20 | 20 |
| Moisture of Grinding Material(%) | <3% | <3% | <3% | <3% | <3% |
| Capacity(t/h) | 3-8 | 4-12 | 6-14 | 13-26 | 15-30 |
| Motor Power of Main Engine(kw) | 160 | 220 | 280 | 500 | 560 |
| Motor Power of Powder Concentrator(kw) | 30 | 45 | 55 | 90 | 110 |
Y Series Pre-grinding Vertical Grinding Mill
| Model |
LM150Y(for clinker) |
LM190Y(for clinker) |
LM250Y(for clinker) |
LM340Y(for clinker) |
LM150Y(for limestone) |
LM170Y(for limestone) |
LM190Y(for limestone) |
LM250Y(for limestone) |
LM340Y(for limestone) |
| Grinding Roller(pcs) |
2 |
2 |
3 |
3 |
2 |
2 |
2 |
3 |
3 |
| Turntable Pitch Diameter(mm) |
1500 |
1900 |
2500 |
3400 |
1500 |
1700 |
1900 |
2500 |
3400 |
Working Principle
The main motor drives the grinding plate by the reducer, simultaneously the hot air enters the vertical mill body from the
air inlet and the materials drop on the grinding plate center from the feed opening and evenly move outwards due to centrifugal
force. The materials are ground by grinding rollers when passing through the grinding area on the grinding plate, and large
size materials will be directly crushed while the fine materials will form a material bed by extrusion for further inter
granular crushing. The crushed materials will continue to move towards the mill edge until being taken away by the strong
air flow at the vane and collected by the dust collector, while larger material particles will again fall onto the grinding
plate for repeated grinding; the coarse particles in the air flow will drop back onto the grinding plate for further grinding
when passing through the upper separator under the action of the rotor blade, with the qualified fine powder flowing out
of the grinding plate with the air flow and then collected and discharged by the system powder collector as finished powder
product. However, the iron blocks and other wastes mixed in the materials will move along with the materials towards the
edge of the grinding plate due to their own weight and fall into the lower chamber and then be discharged out of the slag
discharge opening by the scraping plate at the bottom of the mill tray (commonly known as scumming).
