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10-90 t / h Coal Vertical Mill Vertical Coal Grinding Equipment
Product Introduction
HVM series vertical coal mill is a high-efficient and energy-saving
advanced grinding equipment integrating crushing, drying, grinding,
grading and conveying developed by Hefei Hengcheng Technology
through years of dedicated research and development. This product
has solved the problems of low output, high energy consumption and
high maintenance cost of ordinary industrial mills, and the product
performance has reached the international advanced level.
Pulverized coal fineness: R0.08=2% - 12%
Production capacity: 10-90t/h
It can be widely used in electric power, metallurgy, solid waste
treatment, cement, chemical industry, non-metallic ore and other
industries, mainly used for grinding raw cement, clinker,
desulfurization limestone powder, slag, steel slag, manganese ore,
coal mine, phosphorus ore and other materials. The materials to be
grinded range from high humidity (20-30% water content) to dry
materials (<1% water content), from extremely difficult to grind
materials to easily grinded materials. The product fineness ranges
from coarse to fine, and the grinding types are rich.
【Working principle】: the motor drives the grinding plate to rotate
through the reducer, the material falls in the center of the
grinding plate from the feed port, and the hot air enters the mill
from the air inlet. Under the action of centrifugal force,
materials move towards the edge of the grinding plate. When passing
through the circular groove on the grinding plate, they are crushed
by the grinding roller. The crushed materials are carried away at
the edge of the grinding plate by the high-speed airflow at the
wind ring. Large particles directly fall onto the grinding plate
for re grinding. When the materials in the airflow pass through the
dynamic and static separators, under the action of the rotating
rotor, the coarse powder falls onto the grinding plate for re
grinding. The qualified fine powder is grinded together with the
airflow, The product is collected in the powder collecting device.
Materials containing water are dried in the process of contacting
with hot gas to reach the required product moisture.
【Applicable Materials】
Grinding raw meal, clinker, granulated blast furnace slag, iron
ore, limestone, coal powder, coke powder, coal gangue, fly ash,
pozzolan, gypsum, calcite, pyrophyllite, quartz, clay, sandstone ,
bauxite, silica fume, and other metal ore and non-metal ore
processing industry
According to the different physical and chemical characteristics
such as moisture, grindability, product fineness and safety of
various types of materials in various industries, we have developed
highly targeted, mature, reliable, safe and efficient grinding
technology and supporting equipment. The core equipment is HVM
type.
Vertical mills handle materials ranging from high humidity to dry
materials, from extremely difficult to easy-to-grind materials, and
the fineness of products ranges from coarse to fine. Provide
scientific and reasonable complete process plan and equipment
selection of vertical mill pulverizing system, and provide
integrated powder processing solutions.
Technical DATA
Specification | HVM1250 | HVM1300 | HVM1500 | HVM1700 | HVM1900 | HVM2200 | HVM2400 | HVM2800 |
Grinding table median diameter(mm) | 1250 | 1300 | 1500 | 1700 | 1900 | 2200 | 2400 | 2800 |
Capacity(t/h) | 10-15 | 10-15 | 14-22 | 20-28 | 26-35 | 35-45 | 45-56 | 70-90 |
Coal Moisture(%) | <15 | |||||||
Coal Power Fineness(%) | R0.08=2-12 | |||||||
Coal Power Moisture(%) | ≤1 | |||||||
Main Motor Power(kw) | 110/132 | 160/185 | 220/250 | 315/355 | 400/450 | 450/500 | 560/630 | 900/1120 |
Advantage
Low operation and maintenance cost
The grinding roll can be turned out of the machine by hydraulic
device, which is convenient for maintenance; The grinding roll
sleeve can be used upside down to extend the service life of
wear-resistant materials; Low wear, special materials are used for
grinding roll and grinding disc liner, and the service life is
long;
High grinding efficiency
The grinding efficiency is high and the energy consumption is low.
Compared with the ball mill, the energy consumption is 40% - 50%
lower; Large production capacity of single machine, which can make
use of low valley power;
High reliability
The grinding roll limiting device is adopted to avoid violent
vibration of the mill due to material interruption. The new
grinding roll sealing device is adopted to ensure reliable sealing
without sealing fan, further reducing the oxygen content in the
mill and having excellent explosion suppression performance;
Strong drying capacity
It can directly supply hot air, and the hot air can directly
contact with materials in the mill. It has strong drying capacity,
and the maximum moisture content of the feed can reach 15%. There
is no need to equip another dryer, saving equipment investment cost
and energy consumption cost;
Low comprehensive investment cost
It integrates crushing, drying, grinding, grading and
transportation. The process flow is simple, the structure layout is
compact, and the floor area is only 50% of that of ball milling. It
can be arranged in the open air, and the construction cost is low,
which directly reduces the investment cost.
Stable product quality
The retention time of materials in the mill is short, and repeated
grinding is reduced. The product has uniform particle shape, narrow
particle size distribution, good fluidity and strong adaptability
Low noise and environmental protection
The whole system of HLM vertical mill has low vibration and noise;
The whole sealed negative pressure operation system and the air box
pulse dedusting system are adopted, which can basically realize the
dust-free workshop without dust overflow;
High degree of automation
PLC automatic control system is adopted, and remote control can be
realized, which is easy to operate, convenient to maintain and
reduce labor costs.