• High Pressure Grinding Rolls

High Pressure Grinding Rolls

Our High Pressure Grinding Rolls are used for copper ore,gold ore,iron ore,diamond ore,platinum ore,coal,granulated blast furnace slag,limestone,cement clinker and other mineral raw materials.

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Our High Pressure Grinding Rolls are used for copper ore,gold ore,iron ore,diamond ore,platinum ore,coal,granulated blast furnace slag,limestone,cement clinker and other mineral raw materials.

It has very low consumption of power and steel,and high output,which can replace several reduction crushers. A hydropneumatic spring system builds up a pressure of up to 250 Mpa. During operation of the machine , it is possible to cchange the pressure and thus change the product fineness.

Highly wear-resistant roll surfaces achieve service lives of 4,000 to 10,000 hours when grinding abrasive hard rock. When softer materials are involved, the service life can even exceed 20,000 hours.

High Pressure Grinding Rolls have a length to diameter ratio of 0.5.This provides the following advantages: large roll diameters allow the feeding of lumpy ores,minimised wear costs;Thick roll tyres permit refurbishment of the roll bodies,self-aligning roller bearings dimensioned for a safe and reliable operation.

Technical Specifications of High Pressure Grinding Rolls

Project Case

Vanadium titanium magnetite ore, ore hardness F =14-17. The new building ore dressing plant is equipped with MG170/1 type 50 high-pressure grinding rolls as the main equipment for crushing process, through capacity: 900-1400T/h. The feed size is -30mm. After crushing by high-pressure grinding rolls, the product size can up to P80 6mm.

Two 3050X6400 ball mills are used for the first stage grinding. When there is no high-pressure grinding rolls, the output of the ball mill is 280t/h, but after the high-pressure grinding rolls is put into operation, the output of the ball mill reaches 460t/h, and the production capacity is increased by 64%.

The grinding power consumption per ton of raw ore is 17KWh. The steel consumption is 0.36kg. After using the high-pressure grinding rolls, the power consumption is reduced to 13.5KWh, and the steel consumption is 0.3kg. The power consumption is saved by about 20%, and the steel consumption is reduced by about 15%.

High Pressure Grinding Rolls working system

High Pressure Grinding Rolls project casejpg

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