Conveying system and conveying method for crescent steel billets

The invention belongs to the technical field of conveying of crescent steel billets, and particularly relates to a conveying system and method for crescent steel billets. The machine frame comprises a plurality of main beams and paired concave guide plates, the main beams are located outside the two sides of the furnace entering roller ways in the vertical direction respectively, and the paired concave guide plates are located above the furnace entering roller ways and arranged front and back in the steel billet conveying direction; the two sliding rails are located outside the two sides of the furnace entering roller ways in the vertical direction correspondingly and extend in the vertical direction of the furnace entering roller ways. A sliding groove with an outward opening is formed in the side face of the sliding rail. The pulleys are embedded in the sliding grooves and extend outwards to be connected to the lower end of the main beam; and the driving device is connected with the extending end of the pul