Anti-tearing device of belt conveyor

The utility model discloses a belt conveyor anti-tearing device which comprises a frame body, a conveying belt is arranged on the frame body, a first lead wire is arranged between first wire pullers above the conveying belt, and the middle position of the first lead wire is overlapped with the lower end face of the conveying belt. The second lead between the second wire pullers below the conveying belt is located below the conveying belt, tension sensors are arranged on the first lead in the first wire puller and the second lead in the second wire puller, and the other ends of the tension sensors are electrically connected with a controller of the conveying belt. The open threads on the lower end face of the conveying belt are blown up through the fan so that the open threads can be wound together with the first lead more easily, the open threads on the upper end face of the conveying belt are wound through the second lead, the tension sensor senses changes of tension on the first lead and the second lead, in