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  • Coal Vertical Mill
  • Coal Vertical Mill
  • Coal Vertical Mill
  • Coal Vertical Mill
  • Coal Vertical Mill
  • Coal Vertical Mill
  • Coal Vertical Mill
  • Coal Vertical Mill

Coal Vertical Mill

  • Model:ZKRM800M
  • Capacity: 5~45 TPH
Coal vertical mills are designed to achieve the maximum rated capacity grinding a design coal with a grindability of 55 HGI and 8-12 percent moisture and achieving a discharge fineness of 70 per cent ...

Raw Materials:

Coal preparation for boilers in power plants and thermal plants.

Application:

Application: pulverized coal preparation system in cement plant, lime plant etc.

Introduction

Coal vertical mills are designed to achieve the maximum rated capacity grinding a design coal with a grindability of 55 HGI and 8-12 percent moisture and achieving a discharge fineness of 70 per cent passing a 200 mesh screen (74 micron) and 99.5 per cent passing a 50 mesh screen. Variation of the coal hardness and/or moisture content will effect, up or down, the discharge capacity or the discharge fineness.


To achieve these design considerations it is essential that the grinding elements are in good condition and they maintain a consistent profile. The loss of the grinding profile results in a loss of grinding efficiency, meaning the pulveriser must work harder to achieve an equal result.


Ultimately a point will be reached in which either a loss of capacity or a loss of fineness will result under uniform conditions. Longer lasting, more consistent grinding elements are crucial to pulveriser operation yielding longer operating campaigns, reduced maintenance and a lower overall invested cost.

Coal Vertical Mill

Product Advantages

  • 01

    System Force-feed lubrication system extends the service life of bearing by 2.5 times.

  • 02

    Traditional roller mill either uses a static separator or dynamic separator to separate fine powder from coarse particles.Vertical coal mill brings together both types of separators for more efficient, adjustable material separation.

  • 03

    Vertical coal mill uses 20% to 40% less electricity than a traditional air-swept ball mill for the same amount of grinding task.

  • 04

    Air-swept milling method allows our mill to handle coals of up to 10% moisture content via varying its air flow rate and temperature.

Parameter


ZKRM Specification and technical parameter of pulverized coal vertical mill

ModelCapacity (t/h)Geometric diameter of grinding disc (mm)Grinding disc track diameter(mm)Feeding size(mm)Raw coal moisture(%)Coal fineness(%.R0.08)Moisture of pulverized coal(%)main motor power(kW)
ZKRM800M5-81100800≤25<105-12%≤1%110
ZKRM1100M7-1215201100≤25<105-12%≤1%132
ZKRM1300M10-1518701300≤25<105-12%≤1%185
ZKRM1500M16-2221801500≤30<105-12%≤1%250
ZKRM1700M20-2824001700≤30<105-12%≤1%315
ZKRM1900M26-3526801900≤35<105-12%≤1%400
ZKRM2200M40-4529002200≤40<105-12%≤1%500

Remarks: Raw coal hastelloy coefficient 50-90

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