Description
Vertical roller millis the equipment specializing in
producing fine and superfine powder of non-inflammable,
non-explosive and brittle materials with Mohs’s hardness under six,
such as calcite, chalk, limestone, dolomite, kaolin, bentonite,
talc, mica, magnesite, illite, pyrophyllite and vermiculite,
sepiolite, attapulgite, rectorite, diatomite, barite, gypsum,
alunite, graphite, fluorite, rock phosphate, kalium ore, pumice,
etc., totally more than **0 kinds of materials.
Vertical roller millmainly consists of main unit,
classifier, powder collector, dust cleaner, blower, muffler,
sound-proof room, crusher, bucket elevator, storage hopper, and
vibrating feeder.
Working principle ofVertical roller mill:
After crushed by hammer crusher, the large materials become small
ones and are sent to storage hopper by elevator, edge of then
evenly sent to the upper distribution plate of the turnplate by
vibrating feeder and sloping feeding pipe. When the grinding mill
is at work, all the grinding rollers are rolling in the ring, and
the materials are driven to the edge of the turnplate by the
centrifugal force and fall down into the grinding chambers where
the materials are repeatedly pressed, crushed and grinded by the
rollers. The high-pressure air blower constantly inhales air within
the grinding mill and, in turn, the air flow with crushed
materials are brought to the classifier whose high-speed impeller
will screen the airflow: the unqualified particle size will fall
and return to the mill for being reground while the qualified
particle size mixed with air will go into the cyclone powder
collector. Most of the qualified powders will fall an exit from the
discharging valve at the bottom; a small proportion of the fine
powders, with airflow, moves to the dust cleaner, and clings to the
surface of the filter bags. At the same time, the fine powders
clinging to the surface fall down by the sudden vibration of the
filter bags, which is caused by the instantly ejected high-pressure
gas controlled by the pulse valve. The materials from the above two
lots are sent by the conveyor at the bottom to get finished powders
packed. In addition, filtered clean air will be emitted from the
air outlet of muffler in the end.
Features of Vertical roller mill:
A. High
efficiency
Under the same finished final size and the same motor power, the
capacity of micro powder grinding mill is twice as much as jet
mill, mixing grinder and ball mill.
B. Long
lifecycle of spare parts
The ring and roller are forged by special material with high
utilization. Under the same grinding material and finish special
size, the lifecycle of spare parts is about one year, which is
**3times longer than impact mill or turbo mill. Furthermore, the
lifetime can reach **5 years for grinding calcite carbonate.
C. High
safety and reliability
As no rolling bearings or screws in grinding cavity, there are no
problems caused by bolts shedding or rapid wear of bearings and
seal components.
D. High
fineness and flexible adjustment
The final fineness of the grinding materials can be adjusted
between **5 meshes and ***0 meshes, and the product fineness can
reach D*7≦5um.
E. Environment-friendly
The application of pulse deduster and muffler greatly alleviates
dust pollution and noise.
Model and technical data of
Vertical roller mill:
Model
|
HGM*0
|
HGM*0
|
HGM**0
|
HGM**0A
|
HGM**5
|
Ring
Diameter(mm)
|
**0
|
**0
|
***0
|
***0
|
***0
|
Ring
Number/pcs
|
3
|
**4
|
**4
|
4
|
4
|
Roller
Number/pcs
|
*1
|
****2
|
****6
|
****6
|
****4
|
Main
Shaft Speed/r. p. min
|
******0
|
******0
|
******0
|
******0
|
******5
|
Input
Size/mm
|
≦*0
|
Finished Size/um
|
***3(*******0)
|
Capacity t/h
|
0.**4.5
|
0.**5.5
|
0.**6.5
|
0.**7.5
|
0.***0
|
Outlet
Size L*W*H/m
|
*3.9*4*6.2
|
*4.7*4.8*7.2
|
*8*4.6*8.6
|
*8*4.6*8.6
|
*4*9**0
|
Should you have any questions, please do not hesitate to
contact me.
Phone: ***************8
Contact person:Cherry.Zhao