Coal Processing Equipment

A coal preparation plant is a facility that washes coal of soil and rock, preparing it for transport to market. Coal preparation serves several purpose. One important purpose is to increase the heating value of the coal by mechanical removal of impurities. This is often required in order to find a market for the product. Air pollution control often requires partial removal of pyrites with the ash to reduce the sulfur content of the coal.

Coal preparation process

Coal preparation processes can improve the ROM coal to meet market demands, as limited by the inherent characteristics of a given coal. The top size of the ROM can be reduced to any size specified, although control of the varying size increments can be poor, depending on the amount of crushing required.

Crushing reduces the overall maximum size of the ROM coal so that it can be more easily handled and processed within the coal preparation plant. Crushing requirements are an important part of coal processing plant design and there are a number of different types.

Screens are used to group process particles into ranges by size. These size ranges are also called grades. Dewatering screens are used to remove water from the product. Screens can be static, or mechanically vibrated. Screen decks can be made from different materials such as high tensile steel, stainless steel, or polyethelene.

Gravity separation methods make use of the different relative densities of different grades of coal, and the reject material. Can be divided into a jig, heavy medium selection, chute election , shaker election.

Thickeners are used for dewatering slurries of either tailings or product. A thickener is a large circular tank that is used to settle out the solid material from the water in the feed slurry. The separated water is clarified and reused as process water in the CPP.

Thickeners are sized according to the volume of feed slurry to be processed. Typical size ranges are from 13 to 40 m in diameter and 3-4m high. The floor of the thickener is conical, sloping gently down toward the center.

Coal processing equipment

Coal processing equipment used in the coal preparation plant mainly including coal crushers, coal grinding mills, coal separators and so on. For coal crushing, you can choose our jaw crusher, impact crusher, cone crusher. For further crushing, we can provide you with ball mill, Raymond mill, trapezium mill, super thin grinding mill etc. The commonly used coal separation methods are gravity separation and flotation separation. Other optional equipment involved in coal processing plant are vibrating feeder, vibrating screen, belt conveyor, coal washing machine and so on.

If you need any help about coal processing equipment, please feel free to contact us, and our experts will provide you with reasonable coal processing design and equipment.

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