Vertical Grinding Mill

VM series Vertical Grinding Mill is a kind of large scale powder mill which is designed specially to solve the problems of low capacity and high consumption of industry mills. With a decade of research of mills, vertical grinding mill is designed and manufactured based on our advanced design idea, in combination with the european technology and the market demand.

VM series vertical grinding machine is the ideal substitute of the traditional grinding mills like Raymond grinding mills, high pressure suspension grinding mills, ball mills, etc. Nowadays, vertical grinding mills have been widely used in cement, power,metallurgy, chemical and nonmetalliferous ore industries. The LM series vertical grinding machine is widely used to grind lumpy, granular and powdery material to the required size.

Features of of Vertical Grinding Mill

1. Low running cost:
(1)It has high grinding efficiency, the mill adopts roller and material bed to press and grind materials. It’s low in consumption, and its electricity consumption proportion can be 40% to 50% lower, with increasing of moisture of raw materials, electricity saving can be more obvious.
(2) Low wear of mental, side plate and roller are of special materials, long life span, which is able to reduce running cost and generate higher untilizing ratio;
(3) Exterior circulation device is installed, which is able to reduce electricity consumption further.
(4) Size of feeding material is big, which is about 5% of roller’s diameter, generally 40-100mm, thus secondary crushing can be eliminated because of big and medium vertical mill.

2. Low construction expence:
(1)The vertical mill is simple in process, comparing with ball mill, its soil taking can be about 50% reduced, construction expense can be reduced by about 70%, which is small in construction area and space.
(2)The vertical mill is a combination of crushing, drying, milling, grading and transferring, which has simple system and compact structure. It can be allocated in the open air and its construction expense will be lower.

3. Operation is easy and reliable:
(1) Automatical controlling device is installed, which can enable long distance controll and is simple in operation.
(2)There is a device to prevent direct contact between roller and mill plate, which can prevent the equipment from fragmentation serious vibration.

Technical Parameter of Vertical Grinding Mill

Mm to inch conversion: 25.4millimeters=1 inch
The humidity and hardness of raw material will affect the fineness and capacity.

Ore Mill:

Contents\|Data\Model		VM130K	VM150K	VM170K	VM190K	VM220K	VM240K
Disc Dia. (mm)		1300	1500	1700	1900	2200	2400
Capacity (t/h)		10~30	13~40	18~57	23~72	36~114	41~128
Output fineness	micron	170~45	170~45	170~45	170~45	170~45	170~45
Output fineness	mesh	80~325	80~325	80~325	80~325	80~325	80~325
Product moisture		≤1%	≤1%	≤1%	≤1%	≤1%	≤1%
Max.input size (mm)		<38	<40	<42	<45	<50	<55
Best input moisture		<4%	<4%	<4%	<4%	<4%	<4%
input moisture(drying required)		<15%	<15%	<15%	<15%	<15%	<15%
Inlet air temperature (℃)		<350	<350	<350	<350	<350	<350
Outlet air temperature (℃)		70~95	70~95	70~95	70~95	70~95	70~95
Main mill power (KW)		185~220	250~280	355~400	450~500	710~800	800~900
Dimension	L(mm)	3500	4200	4700	8500	10200	11700
	W(mm)	3400	3900	4500	5600	6700	7700
	H(mm)	5800	7100	8300	8800	10600	12200
Weight (t)		48	75	90	100	125	160

Notes:
1. Material should be with hardness less than 7 in Mohs'.
2. Hot air is only necessary if outlet moisture is required to be less than inlet moisture.
3.When grinding material is difficult to grind, please use the largest power.

Coal Mill:

Contents\|Data\Model		VM130M	VM150M	VM170M	VM190M	VM220M	VM240M
Disc Dia. (mm)		1300	1500	1700	1900	2200	2400
Capacity (t/h)		10~15	16~22	20~28	26~35	35~45	40~50
fineness (R0.08)		<15%	<15%	<15%	<15%	<15%	<15%
Coal powder moisture		<1%	<1%	<1%	<1%	<1%	<1%
Max.input size (mm)		<38	<40	<42	<45	<50	<55
input moisture		<15%	<15%	<15%	<15%	<15%	<15%
Inlet air temperature (℃)		<350	<350	<350	<350	<350	<350
Outlet air temperature (℃)		75~95	75~95	75~95	75~95	75~95	75~95
Hardgrove index of raw coal (HGI)		<55	<55	<55	<55	<55	<55
Main mill power (KW)		185	250	315	400	500	560
Dimension	L(mm)	3500	4200	4700	8500	10200	11700
	W(mm)	3400	3900	4500	5600	6700	7700
	H(mm)	5800	7100	8300	8800	10600	12200
Weight (t)		46	75	94	100	122	157