Separated coal jig:Its equipment craft operation is simple, the equipment handling ability big, and it may obtain the final ore concentrate or the final debris in the disposable classification, therefore it obtains the widespread application in the process of handling the grain of ore. It is suitable for a classification density contrast bigger wolfram ore, the tin ore, the iron ore, the manganese ore and the chrome ore as well as contains the gold and the rare metal and the non-ferrous metal,the ferrous metal ore and so on.