ore Mining Equipment
ore mill also called ore pulverzier or ore powder mill is grinding mill that is used in ore mining industry, such as vertical ore mill. And in general, vertical mill includes mineral series and ore series. The first series grinder can be widely used in cement making, power, metallurgy, chemical, ore industries. And the vertical ore mill also called ore grinder is the most used machine for ore grinding according to our mining experience. In some cases, ore mill is not just one grinder mill, it will include some optional equipment such as vibrating feeder, vibrating screen, belt conveyors and so on to finish the ore milling process. So, ore mill is also used widely in many industries besides ore mining.
ore mill classification
ore mill is an efficient tool for grinding ores into fine powder in ore mining industry. According to its fineness and working principles, we divide ore mill into coarse power ore mill and fine ore mill. Coarse powder mill is a kind of new high-tech milling machine to meet the requirements of coarse powder processing customers. It is the ideal equipment to replace raymond mill, ball mill, and other traditional mill which only process fine ore powder materials.
ore mill working principle
Raw ore is fed through a central ore inlet at the top of the crusher and falls by gravity to the rotating grinding table, mixing with classifier rejects returned for re-grinding. Centrifugal action forces the ore outward to the grinding ring where it is pulverized between the ring and three grinding rollers. Grinding load, transmitted from the tension rods through the loading frame to the roller assemblies, holds the rollers in contact with the grinding ring. The rollers adjust vertically as the depth of the ore load increases or decreases.
A nozzle ring on the outside perimeter of the grinding ring feeds primary air to the crusher. Pyrites and tramp metal fall through the nozzle ring openings to be scraped into a rejects hopper.
A stream of low-velocity air carries the particles of pulverized ore upward where they enter the classifier inlet vanes. Fine particles travel to the burners in the primary air stream, but the larger, heavier particles are returned to the grinding zone for further pulverization.
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