Method for determining a distance-related running frictional resistance of the belt conveyor system

A method for determining a section-related running friction resistance (fi) of a belt conveyor system that is in operation, the method including:

• dividing a conveyor section of the belt conveyor system into “m” system-specific segments (L1, . . . , Lm);
• inputting of constant data at least with regard to a transport length of the belt conveyor system, a segment length of the system-specific segments (L1, . . . , Lm) and an incline or a decline per system-specific segment (L1, . . . , Lm) into an evaluation device;
• continuous recording of varying data at least with regard to a current conveyor belt speed (VB), a material mass flow (QS) and a drive power (P) or a drive torque;
• specifying of determination data comprising at least a current material section mass (M1, . . . , Mm) and a segment-specific belt loading (q1, . . . , qm) of the belt conveyor system based on the material mass flow (QS) at a measurement point;
• storing of the varying data and the determination data in the evaluation device after each passage through a defined conveyor belt portion (ΔL) of a conveyor belt in the conveyor belt system, wherein each passage is numbered with a consecutive index “j”;
• and
• calculating of a load-dependent running friction resistance (fi,j, . . . , fm,j) for each of the system-specific segments (L1, . . . , Lm) and an idling power (Po) of the belt conveyor system by the evaluation device by means of a system of equations using the constant data, the varying data and the determination data.