Coal mining has complex geological conditions and many faults, so it is inevitable that metal impurities will be mixed in the process of transporting coal materials. Metal impurities in the coal material can easily cause belt scratching and tearing of the whole belt, and may damage the next level of associated equipment, bringing great economic losses to enterprises. In order to avoid the loss of metallic impurities, magnetic separation equipment is installed above the belt of the coal conveyor belt, which is used to remove metallic impurities. Investigation data show that the coal produced by the same mine, with or without the separator is very different in coal quality.
In the early stages, many power plants, coal mines and other procurement of iron separator bidding is based on the price of magnetic separation equipment, rather than according to the real performance of the iron separator in addition to the choice of iron removal equipment. After a long period of operation practice, many power plants, coal mines, users have recognized the need for high-quality magnetic separation equipment, in order to better remove the heterogeneous iron in the coal, to reduce the failure of the next process equipment hidden dangers, reduce enterprise losses.
Coal transportation system in the separator is generally installed in the coal crusher before and after each level, before the coal crusher mainly to protect the role of the coal crusher, but also to protect the coal mill. In the use of medium-speed mills and fan mills and other strict requirements, the coal conveying system should be equipped with multiple magnetic separation equipment to protect the safe operation of the coal mill. In order to prevent the leakage of individual iron pieces, metal detectors can be installed in front of the rear iron separator, and when magnetic impurities are detected, the corresponding magnetic separation equipment can be used to remove them.
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