Sliding track for dense-medium shallow-groove separator and dense-medium shallow-groove separator

The utility model discloses a sliding track for a dense-medium shallow-groove separator. The sliding track comprises a sliding track base body, an upper guard plate and a lower guard plate, wherein a groove or channel for dividing the sliding track base body into an upper part and a lower part is formed in the inner lateral side of the sliding track base body, the upper guard plate is attached to at least the upper part of the sliding track base body, and the lower guard plate is attached to at least the lower part of the sliding track base body. The groove or channel serves as a guide rail for a chain, the chain and a scraper fixed to the chain do not make direct contact with the sliding track base body in the operating process, and therefore the sliding track base body can be less abraded; furthermore, when the upper guard plate or the lower guard plate is seriously abraded and needs to be replaced, it is only required that the upper guard plate or the lower guard plate is disassembled to be replaced, time