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Vertical Roller Mill

Vertical Roller Mill

Vertical roller mill is a powder grinding equipment with mature technology superior performance. It integrates to crush, dry, grind and classifiy with high production efficiency. It can grind the massive, granular and powdery materials into fine powder.

  • ≤38Feed Size
  • 185-1000KWMotor Power
  • 10-120 t/hProcessing capacity

What is vertical roller mill?

SRM series vertical roller mill is a powder grinding equipment. This powder grinding plant integrates grinding, drying, grading and conveying, with simple structure and compact. It is used for grinding limestone, raw meal, slag, Nickel slag, manganese slag, cement, ground granulated blast-furnace slag, GGBS powder, fly ash, coal, clinker etc.
slag mill powder flyash mill powder
vertical roller mill for limestone
slag mill powder flyash mill powder

Why choose vertical roller mill?

1.SRM Vertical roller grinding mill adopts the principle of material layer grinding to grind materials with low energy consumption. The power consumption of the grinding system is 20 ~ 30% lower than ball mill. And the power saving effect is more significant with raw material moisture increasing.

2.The vertical mill integrates fine crushing, drying, grinding, powder selection, and transportation. It does not need additional equipment such as drying, powder selection, and lifting. The electrostatic precipitator collects, the layout is compact, the technological process is simple, the floor area and the occupied space are small, which makes the construction cost low.

3.The vertical mill uses hot air to transport materials, and the temperature of the air inlet can be controlled when grinding materials with high moisture content, so that the product can reach the required final moisture content. In the vertical mill, materials with a moisture content of up to 15% can be dried in a wide range of applications.

4.The vertical grinding mill system is equipped with automatic control device to realize remote control and easy to operate.

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  • High Quality

    High grinding efficiency, larger capacity, low energy consumption. Compared with ball mill, energy consumption is 40%-50% lower.

  • Customized Design

    The whole vertical roller mill system has small vibration and low noise.It is sealed and operated under full negative pressure without dust spillover. So it could realize dust-free workshop.

  • Good Performance

    The vertical roller mill can directly through hot air. Hot air in the vertical roller mill directly contact with material, and dry ability is strong. It doesn't need another dryer to save cost.

Product features

The slag material stays in the mill for a shot time. It is easy to detect particle size distribution and chemical composition. The grinding roller can be turned out by hydraulic device to make convenient maintenance operation.

  • vertical roller mill
  • coal mill
  • slag grinding mill
  • GGBS grinding plant

Working principle

Vertical roller mill is mainly composed of powder concentrator, grinding roller device, grinding disc device, pressurizing device, reducer, motor, shell, etc. The separator is an efficient and energy-saving powder separation device. The grinding roller is a component used to roll and crush slag materials. The grinding disc is fixed on the output shaft of the reducer, which is the place where the grinding roller rolls materials. The pressurization device is a component that provides grinding pressure for the grinding roller and provides sufficient pressure to the grinding roller to crush materials. After being crushed by hammer crusher, the large material becomes smaller and is sent to the storage hopper by elevator, and evenly sent to the distribution board on the steering board through vibrating feeder and inclined feeding pipe. The grinding disc is driven by a motor through a reducer. The material falls from the feed opening onto the grinding plate. The material is driven to the edge of the disc by centrifugal force and crushed into fine powder by roller. Then, the hot air of the nozzle converts the fine powder into efficient classification. The qualified powder is brought to the powder collector through air for collection, and the unqualified powder is sent back for regrinding.

vertical roller mill manufacturers


Model Grinding table dia.(mm) Max feeding size(mm) Discharge size(um) Discharge size(mesh) Air-in tempreture(℃) Air-out tempreture(℃) Input material moisture Final moisture Capacity(t/h) Motor Power(kw)
SRM1300 1300 ≤38 212-45 70-325 ≤350 70-95 4-15% ≤1% 10-35 185-250
SRM1500 1500 ≤38 212-45 70-325 ≤350 70-95 4-15% ≤1% 13-48 250-355
SRM1700 1300 ≤38 212-45 70-325 ≤350 70-95 4-15% ≤1% 18-68 355-600
SRM1900 1900 ≤38 212-45 70-325 ≤350 70-95 4-15% ≤1% 23-85 450-600
SRM2200 2200 ≤38 212-45 70-325 ≤350 70-95 4-15% ≤1% 36-135 710-1000

*The output will vary according to different materials, feed particle size and other factors