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Vertical Coal Mill - High Efficiency Low Power Consumption Easy To
Use Maintain For Power Plants
Product Introduction:
Introduction to vertical mill products
Vertical mill, also known as roller mill, is widely used in
large-scale material grinding and ultra-fine powder processing in
industries such as cement chemical, coal, and power. It is an ideal
equipment in the grinding industry that integrates crushing,
drying, grinding, grading, and conveying. When used for coal powder
preparation, it can make the product fineness meet industry
standards.
Grinding disc diameter specification: 1000-2400mm
Moisture content of incoming materials: ≤ 5%
Finished product fineness: 3-4 5 μ M (equipped with a multi head
ultrafine powder classification system)
Production capacity: 3-40t/h
{Application field}: This grinder is widely used in industries such as chemical,
metallurgy, coatings, plastics, rubber, pigments, non-metallic
minerals, etc.
Highlighting advantages
1. High grinding efficiency and low power consumption;
2. Low metal consumption per unit product;
3. The process flow is simple, and the functions of material
grinding, drying, and powder selection are completed
simultaneously;
4. Small footprint, compact layout, lightweight system equipment,
and low investment in civil construction.
operational principle
In the process of powder production, the main motor drives the
grinding disc to rotate through the reducer, while hot air enters
the vertical mill body from the air inlet. The material falls to
the center of the grinding disc through the discharge pipe, and the
constant speed rotating grinding disc disperses and flattens the
raw material outward with the help of centrifugal force, forming a
material bed with a fixed thickness. The material is simultaneously
crushed by multiple grinding rollers on the grinding disc. Under
the continuous driving force of centrifugal force, the material
continuously moves towards the outer edge of the grinding disc.
When the material leaving the grinding disc encounters hot gas
entering the mill through the wind ring and rises, it enters the
separator through the middle shell of the mill. During this
process, the material undergoes sufficient heat exchange with the
hot gas, and the water is quickly evaporated. The powder selection
machine controls the particle size of the finished product at the
outlet of the roller mill. Particles larger than the specified size
are separated and fall back to the grinding disc. Materials that
meet the fineness requirements enter the dust collector through the
powder selection machine, and the collected finished product is
sent to the finished product warehouse.
Parameter Table of Coal Vertical Mill
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 |
Structural composition:
The vertical mill consists of a grinding disc, a grinding roller, a
powder selector, a pressure device, a monitoring device, a
transmission device, a water spray system, and a coarse powder
external circulation system.
Applicable industries: Widely used in various metal and non-metal minerals, cement,
refractory materials, glass raw materials, building aggregates,
machine sand, metallurgy and other industries.
Crushed materials: iron ore, non-ferrous metal ore, diamond sand,
quartz sand, brown corundum, basalt, etc.
Engineering Cases
Engineering Design and Equipment Manufacturing Supply of HVM2800M
Vertical Pulverized Coal Preparation System
Processing material type: bituminous coal
Capacity: ≥ 80t/h
Product fineness: 200 mesh, 85% pass