The working principle of HC1700 Grinding Mill
Powder processing system technological process: raw material will
be transport to semi-open shed by special vehicle, and then be
shoveled into the crusher to be crushed into particles smaller than
40mm. The material particles will be raised to the storage hopper
by the elevator and then be evenly sent to the main mill for
grinding by feeder. The qualified fine powder will be classified
and blew to the pulse dust collector as product and finally
discharged from the dust collector. The product will be transported
to powder storage. The system is designed as open circuit system
with full pulse dust collecting (able to collect 99.9% of the
powder), so the equipment has higher capacity and lower pollution.
The product can be deep-processed according to actual technology.
HC grinding mill has really high capacity so the product cannot be
packed by hand-filling, the packing job is supposed to be done
after the powder be sent to the storage tank.
The HC1700 grinding mill is widely used to grind almost any
non-metallic minerals with Moh's scale of hardness below 7 and
moisture below 10%, such as limestone, calcite, activated carbon,
talc, dolomite, titanium dioxide, quartz, ceramic, bauxite, marble,
feldspar, barite, fluorite, gypsum, ilmenite, phosphorite, clay,
graphite, kaolin, diabase, gangue, wollastonite, quick lime,
silicon carbide,bentonite, manganese etc. The fineness can be
adjusted from 0.18mm(80 mesh) to 0.038mm(400 mesh), whose range is
much wider than that of traditional raymond mill.
1. Most popular model, reliable operation
(1) HC1700 Grinding Mill following the powder processing
development trends, HC1700 Grinding Mill, with revolutionary and
innovative technology, is designed by our engineers, it is the most
popular equipment in powder processing industry. Over the years,
the marketing shows that HC1700 is a reliable, low cost and low
(2) Advanced and reasonable structure of unique swinging pattern
(Patent No.CN200720081221.1), new spider-arm and pendulum roller
device. The equipment operates in low vibration and low noise.
2. High efficiency, low cost
(1) Single machine capacity can reach 25t/h, equal to 6 sets of 4R
mills, while the energy consumption is 1/4 lower. The development
of HC1700 is the first revolution of large-scale Raymond Mill.
(2) Turbine Classifying System(Patent No.ZL201030143470.6): The
classifying system uses the turbine classifier featuring in higher
production capacity and more efficient classifying, which can make
powder with a precise fineness ranging enlarge from 80-325mesh to
80-600mesh and ensure the highest passing rate.
(3) Equipped with pendulum roller structure. Compared with the
traditional Raymond mill, more raw material can be ground per unit
time, and the capacity is 40% higher than traditional Raymond mill
with the same power consumption. 305 power can be saved for
producing one ton powder.
(4) Applied offline pulse dust collector or pulse-jet collector
(Patent No.CN200820113691.6), high capacity of dust removing, long
service time of filter bags. 99.9% of the powder can be collected.
The sealing for the mill ensures no powder floating in the
workshop, so the equipment is more suitable for high dust
concentration and high moisture site.
(5) 20-30dB lower noise than ball mill.
3. Easy maintenance, low operation cost
(1) Multi-layer blocking sealing structure(Patent
No.CN200820113450.1): The roll assembly works in high dust
concentration environment. The lamination sealing of the
traditional R type roller mill sealed bearings unreliable. While
this proposal adopted with multi-layer blocking sealing structure
which combined with the floating oil sealing technology, screw
seals and skeleton seals to prevent dust going into the bearing.
Keep the roll assembly working smoothly and durable. Vastly short
the maintenance time. The traditional R type roller mill needs
lubrication each 1-2 days. The newly designed sealing structure
ensures the roller assembly works continuously for 500-800 hrs
(2) Applied frequency control and can be operated by PLC, realized
unmanned operation and save up label cost. Customers can also
choose long distance intelligent monitoring system to control the
(3) Applied high quality steel to produce important parts, applied
high performance wear-resistance material to cast wear-resistant
parts, so the whole equipment has high wear-resistant performance
and long service life.
(4) Unique double belt drive device (Patent No.CN200820104043.4):
Grinding mills are working in bad condition, large material or hard
matter may cause damage to the reducer and lead to long time
maintenance. But the double belt drive has simple structure and is
able to offer reliable operation and easy maintenance.
4. High cost effective, low investment cost
(1) The equipment has strong systematic because it can organize an
independent and complete production system of raw material
crushing, transporting, grinding to production collecting, storing
and packing. The grinding mill is in stereo-chemical structure,
consume small floor space (1/3 floor space of 4R mill under same
capacity), largely reduce construction cost.
(2) High applicability, need not to change any parts before
processing different material or fineness.