Important Attention On Operation Of Coal Grinding Mill Machine

521 words - 3 pages

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 ...view middle of the document...

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 charges can be achieved even though the mill is running.
Can provide a very high fineness coal having a large number of fines. coal crusher

3. Impact or Hammer Type
The principal charectristics are:
Lower costs.
Suitable just for softer coals.
Low fineness output.

Selection of the type of crusher is dependent upon
Grindability from the coal.
Capital cost and maintenance expense is another criteria.
Patent rights and licence agreements also choose which type of crusher the boiler suppliers recommend.

This article is provided by Zoneding Machine (Zhengzhou Zhongding Heavy Duty Machine Manufacturing Co., Ltd). Zoneding Machine is one of the leading mining equipments manufacturers in China. We can provide single pieces like ball mills, rotary dryers, crushers, conveyors, screeners, flotation machine, magnetic separators as well as standard set of equipments such as aggregate crushing plant, sand making plant, industrial grinding plant and beneficiation plant including combination beneficiation plant, flotation beneficiation plant, gravity beneficiation plant and magnetic beneficiation plant.

Flotation Beneficiation Plant

Aggregate Crushing Plant

Beneficiation Plant

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