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7/27/2019 Belt Feeder 9
1/5
10/10/2013
10:49 PMLOEFFLER ENGINEERING GROUP
20511 Highland Lake Drive, Lago Vista, Texas 78645
512-267-8700
ESTIMATOR/ENGINEER Frank Loeffler
DATECLIENT
PROJECT
PROJECT NUMBER
FEEDER NUMBER
LOAD CASE Full
DISC FILE NAME h:/
REVISION 0 FEEDER PROFILE
VOLUMETRIC DATA
BELT WIDTH INCHESCROSS SECTION
AREA FT 2BELT SPEED FT/MIN
SKBD SPCG
INCHESMAT'L DEPTH
CAPACITY (TPH)
MATERIAL 24 0.500 0 12 6
MATERIAL DENSITY (PCF) 50 30 1.125 0 18 9
ANGLE REPOSE (DEG) 37 36 2.000 0 24 12
ANGLE SURCHARGE (DEG) 27 42 3.125 0 30 15
MAXIMUM LUMP SIZE 48 6.000 0 36 24
MOISTURE CONTENT (%) 54 6.125 0 42 21
TROUGH ANGLE (DEG) 20 60 8.000 0 48 24
BELT WIDTH (INCHES) 66 10.125 0 54 27
BELT SPEED (FPM) 72 12.500 0 60 30
SHEAR FACTOR 0.75 84 18.000 0 72 3696 24.500 0 84 42
108 32.000 0 96 48
NOTE: 1. Shaded areas are required input data. The above table shows the required belt speed based on capacity, density &
2. Values shown in shaded areas are the most cross sectional area. The values shown are NOT recommended belt speeds.
common input. These values should be
overidden if actual requirements differ. Select the belt width and speed.
3. Values shown in non-shaded areas are Typical belt speeds range from 50 to 150 fpm.
program calculated, or standard values
but they may also be overidden. The maximum lump size should be 1/5 skirtboard spacing or 1/3 the material depth.
The above table is based on using picking and feeder idlers.
PAGE 1
7/27/2019 Belt Feeder 9
2/5
10/10/2013
10:49 PMLOEFFLER ENGINEERING GROUP
20511 Highland Lake Drive, Lago Vista, Texas 78645
512-267-8700
PAGE 1
7/27/2019 Belt Feeder 9
3/5
LOEFFLER ENGINEERING GROUP
BELT FEEDER DESIGN SOFTWARE
VERSION 1.0
ESTIMATOR/ENGINEER Frank Loeffler TYPICAL VALVES OF Cs
DATE 0 BAUXITE = .19 GRAVEL =.12
CLIENT 0 CEMENT = .21 IRON ORE = .28
PROJECT 0 COAL = .08 LIMESTONE = .13
PROJECT NUMBER 0 COKE = .05 WOOD CHIPS = .01
FEEDER NUMBER 0 GRAIN = .04
PHYSICAL DATA GEOMETRY DATA
HORIZONTAL FEEDER LENGTH (FEET) TAIL
FEEDER NET LIFT (FEET) TAKE UP LOCATION X
FEEDER LENGTH ALONG BELT (FEET) 0.0DESIGN TEMPERATURE (DEG -F) 32 SCREW GRAVITY
BELT SAG (%) 2 TAKE UP TYPE X
FEEDER SLOPE (DEGREES) #DIV/0! DRIVE WRAP ANGLE 180 180
DRIVE WRAP FACTOR CW 0.8 0.5
ACCESSORIES
SKIRTBOARD LENGTH (ONE SIDE) FT. 0.0
DEPTH OF MAT'L ON SKIRTBOARD (INCH) #N/A
NUMBER OF BELT CLEANERS 2
NUMBER OF V-PLOWS 1
NUMBER OF PULLEYS 2 MISCELLANEOUS FRICTIONSDRIVE LOSS MULTIPLIER 1.08 BELT CLEANER FRICTION (#/IN) 5
INCOMING MAT'L VELOCITY (FPM) 0 PLOW CLEANER FRICTION (#/IN) 2
MAT'L ON SKIRTS FACTOR Cs 0.13
SHEAR PLANE
LENGTH OF OPENING (FEET) NOTE: 1 #N/A NOTES:
WIDTH OF OPENING (FEET) NOTES:1& 2 #N/A 1. Input Actual slot Dimensions.
LOAD ON SHEAR PLANE (LBS) #N/A 2. For tapered slots use the maximum width.
SHEAR FORCE (LBS) #N/A 3. Additional Ky & Kx for headload weight on shesr plane
HEADLOAD FRICTION (LBS) NOTE: 3 #N/A Kx only considers bearing (.00068) not idler seal.
Kt only applied to Kx term.
PAGE 2
7/27/2019 Belt Feeder 9
4/5
LOEFFLER ENGINEERING GROUP
BELT FEEDER DESIGN SOFTWARE
VERSION 1.0
ESTIMATOR/ENGINEER Frank Loeffler
DATE 0
CLIENT 0PROJECT 0
PROJECT NUMBER 0
FEEDER NUMBER 0
IDLER DATA
WEIGHT OF MATERIAL (#/FT) #DIV/0!
WEIGHT OF BELT (#/FT) #N/A
WT .MAT'L + WT. BELT (#/FT) #DIV/0!
IDLER ROLL DIAMETER (IN) 6
CEMA IDLER SERIES C
TROUGHING IDLER SPEG (FT) 1 STANDARD LOAD RATINGS (35 Degree Trough)
RETURN IDLER SPEG (FT) 10 BELT CEMA CEMA CEMA CEMA
IDLER AI FACTOR 1.5 WIDTH B C D E
IDLER LOAD # #DIV/0! 18 410 900
24 410 900 1200
30 410 900 1200
APPROXIMATE BELT WEIGHT 36 410 837 1200 1800
BELT DENSITY 42 363 791 1200 1800
WIDTH 30 - 74 75 - 130 130-200 48 353 744 1200 1800
18 5.3 6 6.7 54 698 1116 180024 6.8 8.3 9 60 650 1070 1800
30 9 10.5 12 72 977 1800
36 13.5 15 18
42 16.5 18 21 IDLER Ai FACTORS * For V-Returns increase Ai by 5%
48 21 22.5 25 CEMA ROLL Ai * For belt speed >1000 fpm consult factory
54 24 25.5 28.5 SERIES DIA.
60 27 30 31 B&C 4 2.3
72 30 36 39 B,C,&D 5 1.8
84 37 45 49.5 C&D 6 1.5
96 45 52 57 E 6 2.8 E 7 2.4
PAGE 3
7/27/2019 Belt Feeder 9
5/5
LOEFFLER ENGINEERING GROUP
BELT FEEDER DESIGN SOFTWARE
VERSION 1.0
ESTIMATOR/ENGINEER Frank Loeffler
DATE 0
CLIENT 0
PROJECT 0
PROJECT NUMBER 0
FEEDER NUMBER 0
CONDITION
NORMAL FRICTION
FULL LOAD
NORMAL FRICTION
EMPTY
REDUCED FRICTION
FULL LOAD
BREAKAWAY
FULL LOAD
BREAKAWAY
EMPTY
FRICTION FACTORS
IDLER KX #DIV/0! #N/A #DIV/0! #DIV/0! #DIV/0!
FLEXURE KY 0.035 0.035 0.023 0.035 0.035
TEMPERATURE KT 1.0 1.0 1.00 1.0 1.0
BREAKAWAY MULTIPLIER 2
DRIVE WRAP FACTOR CW 0.80 0.80 0.80 2.00 0.80
DRIVE LOSS MULTIPLIER 1.08 1.08 1.00 1.08 1.08
HORSEPOWER & FRICTION TE TE HP TE HP TE HP TE HP TE HP
TROUGH FRICTION Kx #DIV/0! #DIV/0! #N/A #N/A #DIV/0! #DIV/0! #DIV/0! #DIV/0! #N/A #N/A
TROUGH FRICTION Ky #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A
RETURN FRICTION #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A
LIFT LOAD #DIV/0! #DIV/0! 0 0.0 #DIV/0! #DIV/0! #DIV/0! #DIV/0! 0 0.0
LOAD ACCELERATE 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0
BELT CLEANER 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0
V-PLOW 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0
MAT'L ON SKIRTS + RUBBER #N/A #N/A 0 0.0 0 0.0 #N/A #N/A 0 0.0
PULLEY FRICTION 350 0.0 350 0.0 233 0.0 700 0.0 700 0.0
MATERIAL SHEAR #N/A #N/A 0 0.0 #N/A #N/A #N/A #N/A 0 0.0
TOTAL TE & HP #DIV/0! #DIV/0! #N/A #N/A #DIV/0! #DIV/0! #DIV/0! #DIV/0! #N/A #N/A
TENSIONS
T1 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!
T2 #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!
TAIL TENSION #DIV/0! #DIV/0!
TAKE-UP TENSION #DIV/0! #DIV/0!
SAG TENSION #DIV/0! #N/A #DIV/0! #DIV/0! #N/A
TRACTION TENSION #DIV/0! #N/A #DIV/0!
PIW #DIV/0! #DIV/0! #DIV/0! #DIV/0! #DIV/0!
2
PAGE 4