Belt conveyor two-pass sweeper and application thereof

The invention provides a belt conveyor two-pass sweeper. The belt conveyor two-pass sweeper comprises a scraper arranged below a belt, the scraper is arranged on a scraper installing plate, and the scraper installing plate is arranged on the top of a scraper support. The scraper support is a movable frame with the adjustable left dip angle and right dip angle. The scraper support is connected witha support foundation in a hinge manner. A lifting device for adjusting the height of the scraper support is arranged below the scraper support. According to application of the belt conveyor two-passsweeper to belt sweeping, the scraper support is divided into two kinds including a short scraper support body and a long scraper support body, and the short scraper support body and the long scrapersupport body are arranged on the same support foundation below the belt in a staggered manner. The lifting device is used for adjusting the scraper sweeping pressure, the response speed is high, pressure adjustment is matched w