Screw Conveyor Design
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document.xlsx 07/17/2022 Screw Conveyor Calculator Project: Project #1 Conveyor: Conveyor #1 Date: 7/17/2022 Production Rate 450.0 ton/hr 15,000 lb/min Drive Sizing 900,000 lb/hr Factors 450.00 ton/hr Diameter (in) 10 37 200.23 Bearing Type Ball 1.7 12,014 Flight Type Loading 15% 30% Density 75 Standard 1.00 1.00 1200 Cement Paddles/Flt 0 1 1 kg/m3 = 0.0624 lb/ft3 Material Factor 1.5 Max loading per Gary B. Screw Fill level 45% Friction HP 1.77 ScrewDiameter 10 in 1 when dia.=flight pitch Flighting 1 Loading 15% 30% Conveying Efficiency 91% Estimate Material HP 35.42 35.42 8.0 m Total HP 37.19 37.19 Conveyor Length 26.24 ft Theoretical Capy. @ 1 RPM 0.20 Inclined screws Design Capy. @ 1 RPM 0.19 Rise 0.0 ft Theoretical Capy. @ 1 RPM 12.27 Conveyor angle 0.0 ° Design Capy. @ 1 RPM 11.23 Efficiency fact 100.0% Required Speed 1,070.1 RPM Added HP 0.000 HP LEGEND User Inputs Intermediate Results Final Results ft 3 /min ft 3 /hr lb/ft 3 kg/m 3 ft 3 /min ft 3 /min ft 3 /hr ft 3 /hr Note: This spreadsheet is based on formulas and valu Catalogue 3000 by Martin Sprocket and Gear In
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Transcript of Screw Conveyor Design
CalculationsScrew Conveyor CalculatorProject:Project #1Conveyor:
Conveyor #1Date:1/28/15Production Rate450.0ton/hr15,000lb/minDrive
SizingTorque Requirements900,000lb/hrFactorsReducer
efficiency85%450.00ton/hrDiameter (in)1037Gear reduction 1.4:
1200.23ft3/minBearing TypeBall 1.7Adjusted
HP43.7512,014ft3/hrFlight TypeLoading15%30%45%95%Torque
215ft*lbDensity75lb/ft3Standard1.001.001.001.002,577in*lb1200kg/m3CementPaddles/Flt0
David Barlow: David Barlow:This field is '0' unless designing a
mixing conveyor.11 kg/m3 = 0.0624 lb/ft3Material Factor1.5
David Barlow: David Barlow:Typical values range from 0.4 to 3.0. It
increases with the "stickiness" of the material being conveyed.Max
loading per Gary B. Screw Fill level45%Friction
HP1.77ScrewDiameter10in1 when dia.=flight pitchFlighting1
David Barlow: David Barlow:Flight pitch1 - Full 1/2- Half
etc.Loading15%30%45%95%Conveying Efficiency91%EstimateMaterial
HP35.4235.4235.4235.428.0mTotal HP 37.1937.1937.1937.19Conveyor
Length26.24ft Theoretical Capy. @ 1 RPM0.20ft3/minInclined
screwsDesign Capy. @ 1 RPM0.19ft3/minRise0.0ftTheoretical Capy. @ 1
RPM12.27ft3/hrConveyor angle0.0Design Capy. @ 1
RPM11.23ft3/hrEfficiency factor100.0%Required Speed1,070.1 RPMAdded
HP0.000HPNote:This spreadsheet is based on formulas and values in
Catalogue 3000 by Martin Sprocket and Gear Inc.LEGENDUser
InputsIntermediate ResultsFinal Results
&F&D
DataDiameter FactorsBearing Type Bearing Factor Bearing Class Modified Flight FactorsDiameter(in)FactorBall 1IFlight Type Conveyor Loading 412* Bronze, oil-impregnated 1.7II 15304595618*Graphite Bronze 1.7II Cut and Folded Flight Not Recommended1.51.7Not Recommended931*Hard Iron 4.4IVCut Flight 1.11.151.2Not Recommended1037*Hard-Surfaced 4.4IVRibbon Flight 1.051.141.2Not Recommended1255*Nylon 2III Standard11111478*Plastic, graphite- impregnated 2III *Not Recommended 16106*Teflon 2III 18135Babbit 1.7II Conveyors With Paddles20165Bronze 1.7II Paddles Per Pitch Factor 24235Nylon 1.7II Plastic, laminated fabric-base 1.7II 01Wood 1.7II 11.29*Non-Lubricated 21.5831.874;pvf* Std. paddles at 45 reverse pitch
HP Correction
From NomagraphModified formulaa0.1764Corrected HPCalculated HPCalculated HPCorrected HPb0.07820.2190.10.120.01c0.12670.50.20.20.46n0.22165532880.790.30.30.79f-0.66912288351.050.40.41.041.210.50.51.251.360.60.61.431.520.70.71.591.710.80.81.741.880.90.91.882.01112.013.1223.043.84333.824.5444.475555.04Loading15%30%45%95%37.1937.1937.1937.1937.1937.1937.1937.19
Trough dimsThe top flange is formed from the same sheet as the trough, resulting in a lightweight, yet rigid housing section. End Flanges are jig-welded for perfect alignment between sections.Formed Flange TroughModel NumberProduct NameConv. Dia.Trough ThicknessABCDETUF410Formed Flange Trough41053 5/817 1/46 1/8TUF412Formed Flange Trough41253 5/817 1/46 1/8TUF414Formed Flange Trough41453 5/817 1/86 1/8TUF416Formed Flange Trough41653 5/817 1/86 1/8ETUF610Formed Flange Trough61074 1/21 1/49 3/48TUF612Formed Flange Trough61274 1/21 1/49 3/48TUF614Formed Flange Trough61474 1/21 1/49 11/168TUF616Formed Flange Trough61674 1/21 1/49 5/88TUF910Formed Flange Trough910106 1/81 1/213 1/411 1/8TUF912Formed Flange Trough912106 1/81 1/213 3/1611 1/8TUF914Formed Flange Trough914106 1/81 1/213 3/1611 1/8TUF9316Formed Flange Trough93/16106 1/81 1/213 3/811 1/8TUF1010Formed Flange Trough1010116 3/81 1/214 5/811 7/8TUF1012Formed Flange Trough1012116 3/81 1/214 1/211 7/8TUF1014Formed Flange Trough1014116 3/81 1/214 3/811 7/8TUF10316Formed Flange Trough103/16116 3/81 1/214 3/411 7/8TUF1210Formed Flange Trough1210137 3/4217 1/414 1/4TUF1212Formed Flange Trough1212137 3/4217 3/1614 1/4TUF12250Formed Flange Trough121/4137 3/4217 1/214 1/4TUF12316Formed Flange Trough123/16137 3/4217 3/814 1/4TUF1410Formed Flange Trough1410159 1/4219 1/416 3/4TUF1412Formed Flange Trough1412159 1/4219 3/1616 3/4TUF14250Formed Flange Trough141/4159 1/4219 1/216 3/4TUF14316Formed Flange Trough143/16159 1/4219 3/816 3/4TUF1610Formed Flange Trough16101710 5/8221 1/419 1/8
