Research on the Strong Wear-resistant Steel Cord Conveyor Belt

Exploring the allowable safety factor of the strong wear-resistant steel wire rope conveyor belt The allowable safety factor of the steel cord conveyor belt = 7~9 is reasonable, and in this range, it meets both economic requirements and safety.
Safety factor comparison table wire rope conveyor belt, specifications for ST1600 rated breaking force SH = 106N / m, unit length q = 30kg / m, idler selection Y = 108mm, three roller group rotating part mass 2 = 12. 57kg Roller spacing L = 1.2im flat roller rotating part mass Gk = 10.6kg idler spacing Lk = 3 The required circular force of the driving drum Calculate the conveyor layout As shown in the figure below, the drum needs to have a circular force: The mass per unit length is 3.6V? 3.6X2.5?6667(kg/m) qi- idler rotation part unit length mass 4 conveyor belt tension calculation as shown in the diagram using double drum drive, wrap angle 91=92= minimum tension required to transmit circular force: conveyor belt sagging The degree of tension does not exceed the minimum tension is less than the value (calculated slightly) so take S2min = maximum tension: 5 conveyor belt safety factor This safety factor is appropriate, that is, whether the use of ST1600 conveyor belt is reasonable, depends on the allowable safety factor. If m>10 using ST1600 conveyor belt safety factor is not enough, need to use the ST2000 conveyor belt rated breaking force; if it is considered m=9. 25 large, can also choose the ST1250 conveyor belt with a small breaking force. For the sake of comparison, the safety factor of the ST1250 and ST2000 conveyor belts is calculated in the same way as in the calculation of the ST1600 conveyor belt (see the table below). Which conveyor belt is used is reasonable and must be determined by comparing the calculated safety factor with the allowable safety factor. The permissible safety factor can be used to calculate the allowable safety factor of the 7010 dark inclined well conveyor belt in Tangshan Coal Mine. It can be determined that comparing m with m in the table, it can be concluded that it is reasonable to use ST1600 to transport 25> 7.6. Use ST1250 conveyor belt m = 7.26 < 7.6 safety factor is not enough; use ST2000 conveyor belt m = 11. 24> 7.6, the safety factor is larger, but the ST2000 conveyor belt cost is higher, only the conveyor belt is more than the selected ST1600 spend 40 Ten thousand yuan, plus supporting equipment, the investment will be even greater.