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Trough Belt Conveyor Design Calculation Conveyor belt selection/design for high speed conveyors 455 Кб Designing units of this kind requires precise calculation of all belt tensions during steady and non-steady conditions and of the additional stresses that occur, for instance, in the troughCalculation of the belt tensions and other stresses must keep pace with the changes in conveyor belt technology.
Step No. 1 Troughing Idler Series Selection Calculated Idler Load (lbs) = CIL = ((WB + (WM x K1)) x SI) + IML Where: WB = Belt weight (lbs/ft) use actual or estimate from Table 5-5 WM = Material weight (lbs/ft) = (Q x 2000) / (60 x Vee) Q = Quantity of material conveyed (tons per hour) Vee = …
3. BELT CONVEYORS - BASIC CALCULATIONS: 1. Mass of the Load per Unit Length: Load per unit length. Given the production capacity Qt = tph, the weight of the load per unit length (kg/m) – (lbs per ft) is calculated by: Wm = 2000. Qt or Wm = 33.333.Qt = (lb/ft) 60 x v v
Since one horsepower (HP) = 33,000 ft-lbs/min, required conveyor drive power may be expressed in HP as follows, (Te in lbs) x (V in fpm)/ ( (33,000 ft-lbs/min)/HP) = HP. After calculating Te, it is important to calculate T2 slip (slack side tension required to resist slippage of the belt on the pulley.)
Calculation for belt conveyor design capacity and belt width (For horizontal conveyors) Capacities between 5 to 5000TPH, 35 degree troughing idler angle and belt widths 350 to 2000mm Inputs Design Considerations for Conveyor Belt Idlers
Calculation example Unit goods conveying systems 12 Conveyor and power transmission belts made of modern synthetics Worldwide leaders in technology, quality and service Further information on machine design can be found in our brochure no. 305 “Recommendations for machine design”. The formulae, figures and recommenda-
89 Belt Tension Calculations W b =weight of belt in pounds per foot of belt length. When the exact weight of the belt is not known, use average estimated belt weight (see Table 6-1) W m =weight of material, lbs per foot of belt length: Three multiplying factors, K t , K x , and K y , are used in calculations of three of the components of the effective belt tension, T
Design factor (0 - 100%) % Selected factor Belt Speed (m/s) m/s Note - Type in respective value inside of coloured cell, then click outside cell to enter. Results Conveyed bulk density kg/m 3 Required volumetric throughput m 3 /hr Required troughing area: m 2 Design volumetric throughput m 3 /hr Design troughing area: m 2 Suggested belt width: mm
I. Belt conveyor sub system design guidelines 1) Idler design Trough angle shall not be less than 30. Carrier and return idler diameter shall be designed according to DIN (15207-1 /22107) or CEMA C las ) or equ iv nt, bear g f L10 = 60’000 h at 500 rpm), guaranteed idlers failure
Troughing angle (λ) – 35 0 Conveyor Inclination – 10.36 0 Take Up Travel – 600 mm Type of Take up – SCREW 5. DESIGN OF BELT CONVEYOR The design of the belt conveyor must begin with an evaluation of the characteristics of the conveyed material and in particular the angle of repose and the angle of surcharge. The angle of repose of a material,
Trough Belt Conveyor Design Calculation Conveyor belt selection/design for high speed conveyors 455 Кб Designing units of this kind requires precise calculation of all belt tensions during steady and non-steady conditions and of the additional stresses that occur, for instance, in the troughCalculation of the belt tensions and other stresses must keep pace with the changes in conveyor belt technology.
Step No. 1 Troughing Idler Series Selection Calculated Idler Load (lbs) = CIL = ((WB + (WM x K1)) x SI) + IML Where: WB = Belt weight (lbs/ft) use actual or estimate from Table 5-5 WM = Material weight (lbs/ft) = (Q x 2000) / (60 x Vee) Q = Quantity of material conveyed (tons per hour) Vee = …
3. BELT CONVEYORS - BASIC CALCULATIONS: 1. Mass of the Load per Unit Length: Load per unit length. Given the production capacity Qt = tph, the weight of the load per unit length (kg/m) – (lbs per ft) is calculated by: Wm = 2000. Qt or Wm = 33.333.Qt = (lb/ft) 60 x v v
Since one horsepower (HP) = 33,000 ft-lbs/min, required conveyor drive power may be expressed in HP as follows, (Te in lbs) x (V in fpm)/ ( (33,000 ft-lbs/min)/HP) = HP. After calculating Te, it is important to calculate T2 slip (slack side tension required to resist slippage of the belt on the pulley.)
Calculation for belt conveyor design capacity and belt width (For horizontal conveyors) Capacities between 5 to 5000TPH, 35 degree troughing idler angle and belt widths 350 to 2000mm Inputs Design Considerations for Conveyor Belt Idlers
Calculation example Unit goods conveying systems 12 Conveyor and power transmission belts made of modern synthetics Worldwide leaders in technology, quality and service Further information on machine design can be found in our brochure no. 305 “Recommendations for machine design”. The formulae, figures and recommenda-
89 Belt Tension Calculations W b =weight of belt in pounds per foot of belt length. When the exact weight of the belt is not known, use average estimated belt weight (see Table 6-1) W m =weight of material, lbs per foot of belt length: Three multiplying factors, K t , K x , and K y , are used in calculations of three of the components of the effective belt tension, T
Design factor (0 - 100%) % Selected factor Belt Speed (m/s) m/s Note - Type in respective value inside of coloured cell, then click outside cell to enter. Results Conveyed bulk density kg/m 3 Required volumetric throughput m 3 /hr Required troughing area: m 2 Design volumetric throughput m 3 /hr Design troughing area: m 2 Suggested belt width: mm
I. Belt conveyor sub system design guidelines 1) Idler design Trough angle shall not be less than 30. Carrier and return idler diameter shall be designed according to DIN (15207-1 /22107) or CEMA C las ) or equ iv nt, bear g f L10 = 60’000 h at 500 rpm), guaranteed idlers failure
Troughing angle (λ) – 35 0 Conveyor Inclination – 10.36 0 Take Up Travel – 600 mm Type of Take up – SCREW 5. DESIGN OF BELT CONVEYOR The design of the belt conveyor must begin with an evaluation of the characteristics of the conveyed material and in particular the angle of repose and the angle of surcharge. The angle of repose of a material,