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Important Attention on Operation of Coal Grinding Mill Machine

  • Date Submitted: 01/08/2013 01:09 AM
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Coal mining is a long processing line, which needs various mining machines, including vibratory feeders, vibratory screen, belt conveyor and the most important crushing machines as well as grinding mill machine.   There is some important attention that should be paid to the operation of coal grinding mill.

Coal mill consist of ball mill, Raymond mill, vertical mill, MXB Grinding Mill.   In coal crushing approach, numerous types of coal crusher are used, for example jaw crusher, impact crusher, cone crusher and mobile crusher.   Often a total coal milling line consists of coal mill, impulse dust cleaner, piping device, cyclone collector device and classifier.

Raw coal is fed through a central coal inlet at the best of the crusher and falls by gravity for the rotating grinding table, mixing with classifier rejects returned for re-grinding.   Centrifugal action forces the coal outward towards the grinding ring where it is pulverized between the ring and three grinding rollers.

Pulverizing the coal to a fine powder is often a critical function within the operation from the power plant.   The important thing input towards the coal fired power plant will be the coal.   Coal inside the form that is available from your mines just is suited to efficient combustion in the boiler from the power plant.   The pulverizing system prepares the coal for combustion.

You can locate basically 3 different forms of pulverizing.

1. Attrition Type
The primary characteristics are:
Lower investment costs than other forms.
Smaller capacity for each mill means a better amount of combustion flexibility.
They require periodic roller changes as they wear out during pulverizing, enhancing the maintenance cost.
Harder coals require this type of crushers.

2. Impact and Attrition Type
This referred to as Tube mill or Ball mill These types of mills have:
Initial cost which is higher.
Maintenance that is considerably less.
As the balls degrade during operation, adding fresh ball...


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