Brief Introduction of Ultra Fine Grinding Mill
HGM Ultra fine grinding mill is designed by SBM R&D department
on the basis of multiple innovations and testing. It has been
proved by thousands of customers that our ultra fine grinding mill
has outstanding features, stable quality, easy operation, and
maintenance. It is the ideal equipment for fine powder milling.
Scope of Ultrafine Grinding Mill
HGM Ultra fine grinding mill specialized in producing fine and
superfine powder of non-inflammable non-explosive and brittle
materials with Moh’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, fly ash, etc., totally more
than 100 kinds of materials.
Application of Ultrafine Grinding Mill
HGM ultra fine grinding mill is an industrial device that breaks
solid materials into powder by grinding. Such comminuting is an
important unit operation in many processes. It is usually used in
metallurgy, building materials, chemical, and mine industries.
Working Principle of Ultra Fine Grinding Mill
HGM series ultra fine grinding mill mainly consists of main unit,
classifier, powder collector, dust cleaner, blower, muffler,
sound-proof room, crusher, bucket elevator, storage hopper, and
After being crushed by a hammer crusher, the large materials become
small ones and are sent to a storage hopper by elevator.
And then evenly sent to the upper distribution plate of the
turnplate by vibrating feeder and sloping feeding pipe.
When the ultrafine grinding mill is at work, the main bearing and
each dial are driven by the electromotor of the main equipment
through a reducer. And all the grinding rollers are rolling in the
ring channels driving by dial through plunger.
The materials are driven to the edge of the turn plate by the
centrifugal force and fall down into the grinding chambers. And the
materials are repeatedly pressed, crushed, and ground by the
rollers in grinding chambers. Then the materials fall into multiple
layers and to be crushed and ground continuously to micro powder.
The high-pressure air blower constantly inhales air within the
grinding mill. In turn, the airflow with crushed materials is
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 and 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
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 the muffler in the
Features of Ultra Fine Grinding Mill
- High Efficiency
- Long lifecycle of spare parts
- High safety and reliability
- High fineness, flexible adjustment
- Advanced intelligent speed control device
Under the same finished final size and the same motor power, the
capacity of the micro powder grinding mill is twice as much as jet
mill, mixing grinder and ball mill, and energy consumption
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 2-3
times longer than an impact mill or turbo mill. Furthermore, the
lifetime can reach 2-5 years for grinding calcite carbonate. The
lifecycle of spare parts is variable for the material’s hardness.
As no rolling bearings or screws in the grinding cavity, there are
no problems caused by bolts shedding or rapid wear of bearings and