·The TMD IV detects the presence of tramp metal in bulk material being transported on a conveyor belt Detected tramp metal can then be removed from the process stream manually or automatically by mechanical means Removing the tramp metal protects crushers material handlers and process equipment from the damage it may cause
·During tramp metal detection solid material passes across a metal detector When tramp metal is detected it can either be removed manually or automatically With manual removal tramp metal detection triggers an alarm relay and stop the belt this allows a safe manual removal of the tramp metal to prevent it from entering the downstream
·Tramp metal can enter a production stream in many ways Any place where heavy machinery is involved is a potential source of tramp metal contamination Examples of this include chain driven equipment where pieces of the chain can break off or shavings from drill bits that get embedded into the rock face
The origin or tramp metal Operators of plant often wonder about the origin of tramp metal In order to fully explain their origin we must begin with the ore mining & quarry process Hence magnetic separators require varying degrees of magnetic flux power These are separated into electro magnets and permanent magnets Electro Magnets
·Typical tramp metal can include digger teeth drill rods crusher plates bars chains nuts and bolts A review of the plant layout identifying critical machinery at risk from tramp metal highlights potential locations for detection and separation equipment Once the application details are known it is possible to recommend an optimum
·Over Belt Electromagnetic Metal Separator for Power Plant US$10 80 1 Piece MOQ
·1 An actively controlled system can produce power savings of the order of 80 90% of design power 2 For low tramp iron concentrations the potential power saving is the highest 3 An adjustable lower level of magnet intensity helps to opt imize the power consumption and is beneficial in particular with high tramp iron concentrations
Tramp iron may have come from the mine or entered the raw coal during transport or at the plant All efforts are usually made to minimize the amount of tramp metal that enter the pulverizer Metal can not be pulverized and will place undue stresses on the pulverizers bearings main shaft journals and bull ring
In addition high energy ejection of tramp metal specifically Ground Engagement Tools GET from crushers poses a serious safety risk to the operations staff Providing a simple reliable and cost effective solution for the detection of tramp metal before it enters the crushing circuit can avoid a costly production delay and minimise
·Tramp Metal Detects both non magnetic and magnetic metals Sensitivity Dual Coil Model — Maximum approxi mately 5% of aperture height; stable to 10% with the same sector of aperture location Conveyor Velocity Minimum — 6ft/min 1 83 mlmin Maximum 1 200 ft/mm rn/mm
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