LM Vertical Grinding Mills

LM Vertical Grinding Mills also called vertical roller mill, vertical roller mill is based on the principle of material bed comminution, the relative movement of the grinding roller and the grinding disc grinding materials, and by the hot air to ground material drying, with the grading device, in the grinding classification separator, coarse powder into the disc to be crushed; product by using air outlet outside the LM Vertical Grinding Mills by the bag dust collector. Our company based on extensive use of foreign advanced technology, combined with years of various grinding mill production experience, design and develop advanced grinding equipment .

Use of LM Vertical Grinding Mills

The cement plant raw material grinding.
The metallurgical, power, coal mill in cement industry.
kinds of non metal ore grinding.

LM Vertical Grinding Mills roller device

Adopt New type sealing device, the grinding roller reliable sealing, and no sealing fan, the grinding hypoxic, explosion suppression performance is superior.

LM Vertical Grinding Mills Selling point

reliable operation: automatic control system installation, can realize remote control, simple operation.
high performance: hot air in direct contact with the material in grinding, drying capacity, saving energy (for the mill system saves a dryer).
low input: set crushing, drying, grinding, grading conveying into a whole, compact layout, covers an area of approximately 50% milling system.

LM Vertical Grinding Mills characteristics

vertical roller mill with hydraulic pressure roller, and the hydraulic system with accumulator, therefore has the pressure is continuous and adjustable, pressure stability, small vibration grinding mill, quality reliable, stable yield;
vertical mill reasonable structure and the bed grinding principle, therefore, high grinding efficiency, low energy consumption than traditional 20-30% ball mill system;
LM Vertical Grinding Mills with hot gas conveying material, therefore, can be dry milling moisture content as high as 15% in the mill material, can save raw material drying system;

LM Vertical Grinding Mill Technical Data

Model		LM130K	LM150K	LM170K	LM190K	LM220K	LM130M	LM150M	LM170M	LM190M	LM220M	LM130N	LM150N	LM170N	LM190N	LM220N
Wheel diameter(mm)		1300	1500	1700	1900	2200	1300	1500	1700	1900	2200	1300	1500	1700	1900	2200
Output (th)		10-30	13-40	18-57	23-72	36-110	10-15	16-22	20-28	26-35	35-50	5-14	7-20	8-27	9-30	18-55
Finish fineness	μm	170-45	170-45	170-45	170-45	170-45						170-45	170-45	170-45	170-45	170-45
Finish fineness	Mesh	80-325	80-325	80-325	80-325	80-325						80-325	80-325	80-325	80-325	80-325
Coal powder fineness (R0.08)							5-20%	5-20%	5-20%	5-20%	5-20%
Coal powder moisture (%)							<1%	<1%	<1%	<1%	<1%
End product 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	<10	<10	<10	<10	<10
Grinding material max feed size(mm)		<38	<40	<42	<45	<50	<38	<40	<42	<45	<50	<38	<40	<42	<45	<50
Moisture of grinding material not to dry (%)		<4%	<4%	<4%	<4%	<4%						<4%	<4%	<4%	<4%	<4%
Matieral moisture of into mill (%)							<15%	<15%	<15%	<15%	<15%
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%
Into mill air temperature (℃)		<350	<350	<350	<350	<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	75-95	75-95	75-95	75-95	75-95	70-95	70-95	70-95	70-95	70-95
Raw coal hardgrove grindability index (HGI)							>55	>55	>55	>55	>55
Main motor power (kw)		200	280	400	500	800	185	250	315	400	500	200	280	400	500	800
Contour dimension	Length (mm)	5520	6550	7170	7580	8080	5520	6550	7170	7580	8080	5520	6550	7170	7580	8080
	Width (mm)	2500	3070	3460	3320	4660	2500	3070	3460	3320	6700	2500	3070	3460	3320	4660
	Height (mm)	7060	7560	8300	8960	9020	7060	7560	8300	8960	9020	7060	7560	8300	8960	9020