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20tph Bituminous Coal Anthracite Vertical Mill - Equipment For
Producing Clean Coal Powder
Product Introduction: Vertical mill, also known as roller mill, is
widely used in large-scale material grinding and ultrafine grinding
processing in industries such as cement chemical industry, 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, the product fineness can meet
industry standards.
Capacity: Different materials result in different processing
capacities. Please refer to the technical parameter table below for
details
Applicable materials: Vertical roller mill mainly grinds raw
materials, clinker, mineral powder, slag, granulated blast furnace
slag, limestone, coal powder, coke powder, coal gangue, fly ash,
volcanic ash, gypsum, calcite, pyroxene, clay, sand, bauxite,
silica fume, etc.
Application industries: cement chemical, coal, power and other
industries.
Highlighting advantages
Vertical mill is an ideal large-scale grinding equipment widely
used in industries such as cement, electricity, metallurgy,
chemical industry, non-metallic minerals, etc. It integrates
crushing, drying, grinding, and grading transportation, with high
production efficiency. It can grind block, granular, and powdered
raw materials into the required powder materials.
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
certain thickness of material bed. 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 |
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