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The curved belt conveyor is an upgraded version of the conventional belt conveyor, offering more functions than regular ones; it is particularly widely used in environments with limited space. Turning belt conveyors can not only transport materials independently to carry out various processing tasks, but also work in conjunction with other conveying equipment; they help to save space while delivering materials effectively. The turning angle of the curved belt conveyor can be 60°, 90°, or 180°, with a conveyor belt width ranging from 200 mm to 1500 mm. The operation of a belt conveyor that turns is achieved by a driving mechanism that provides power to rotate the drive drum, thereby pulling the belt. The belt serves both as a traction element and as a carrying mechanism. Under the action of tension, the forces acting on the belt of a conventional belt conveyor vary depending on whether it is in a straight section or a curved section. In the straight sections, the tensions at both ends of the belt act along the same line, resulting in balanced forces on the belt. However, in the curved sections, the tension vectors at both ends form an angle with each other, creating a centripetal component that causes an imbalance in the total forces acting on the belt segment. The layout and structural features of curved belt conveyors are such that they generate an opposing centrifugal force in order to counteract the centripetal force resulting from the tension angle of the belt. To this end, the design of the curved sections of such conveyors typically involves raising the inner curve of the conveyor belt, thereby using the gravity of the material and the belt to create a centrifugal force directed outward along the curve, which helps to balance the centripetal force. This centrifugal force can be achieved by raising the idler roller set at an angle inside the turning section, so that it forms an angle with the horizontal plane; in this case, the gravity of the material and the belt generates a thrust directed toward the outside of the turn. However, raising the inner curve may cause the material to slide toward the outside of the turn or even spill, so the inner curve should not be raised excessively. The design of curved belt conveyors also allows for an increase in the groove angle of the idler roller sets. Increasing the groove angle of the idler roller set can increase the conveying capacity of the belt conveyor. Increasing the groove angle also facilitates the automatic centering of the belt, which can reduce the amount of belt deviation. It helps to decrease the turning radius of belt conveyors, and it is an important measure to prevent deviation in belt conveyors that make turns in a horizontal plane. The forward inclination of the idlers utilizes the principle of alignment adjustment for the idler sets at turning sections; when the material and conveyor belt deviate along the curve at such sections, an outward guiding friction force is generated to bring them back into alignment.