Download Martin Screw Conveyor and Elevator PDF

TitleMartin Screw Conveyor and Elevator
File Size3.2 MB
Total Pages157
Table of Contents
                            Index
	Stock Screw Conveyor
Components
	Made-To-Order
Conveyors
	Special Tolerance
Requirements
ENGINEERING SECTION I
	Introduction
	Design
	Material Classification Code Chart
		Table 1-1
	Selection of Conveyor 
Size and Speed
		Capacity Table
		Conveyor Speed
		Table 1-3
		Table 1-4
		Table 1-5
	Capacity Table Horizontal Screw Conveyors
	Lump Size  Limitations
	Component Selection
		Table 1-8
		Table 1-9
		Table 1-10
		Table 1-11
	Horsepower
Requirements
		Horizontal Screw Conveyors
		Horsepower Factor
Tables
	Horsepower
	Torsional Ratings of Conveyor Screw Parts
	Horsepower Ratings of Conveyor Screw Parts
	Screw Conveyor End Thrust Thermal Expansion
	Conveyor Screw 
Deflection
Conveyor Screw
	Inclined and Vertical Screw Conveyors
	Screw Feeders
DESIGN AND LAYOUT SECTION II
	Enclosures
	Hand Conveyors
	Conveyor Screw Rotation
	Layout
	Tubular Housing
	Typical Method of Detailing
		U-Trough End Flanges
		Flared Trough End Flanges
	Bolt Bolt Patterns
	Tubular Housing Flanges
	Bolt Requirements
	Pipe Sizes, Dimensions
and Weights
	Typical Drive
Typical Drive
Typical Drive Arrangements
	Sample Work Sheet
	CEMA Standards
COMPONENT SECTION III
	Component Selection
	Standard Conveyor Trough
	Tubular Housing
	Flared Trough
	Discharge Spouts
	Discharge Gates
	Trough Ends
	Saddles — Feet Trough End Flanges
	End Bearings
	Thrust Bearings
	Shaft Seals
	Conveyor Screws
	Conveyor Screws (Helicoid)
	Conveyor Screws (Sectional)
	Conveyor Screws (Ribbon)
	No. 2 and No. 3 Drive Shafts
No. 2 and No. 3
Drive Shafts
	Shafts
	End Shaft
	Hangers
	Hanger Bearings
	Trough Cover
	Cover Accessories
	Shrouds
	Conveyor Shrouds
SPECIAL FEATURES SECTION IV
	OVERFLOW COVER
	Trough Ends
	Discharges and Inlets
		Inlets
INSTALLATION & MAINTENANCE SECTION V
	Warning & Safety Reminder
BUCKET ELEVATORS SECTION VI
	Safety
	Introduction
	Series 100
	Series 700
	Elevator Selection
	Materials Table
	Centrifugal Discharge Chain
	Centrifugal Discharge Chain Series 100
Centrifugal Discharge Chain
Series
	Centrifugal Discharge Belt Series 100
	Continuous DischargeChain
	Continuous Discharge Chain Series 700
	Continuous DischargeBelt
	Bucket Elevator Dimensions
	Index/Bucket Elevator Dimensions
	High Speed Grain Centrifugal Discharge Belt Series 500
	High Speed Grain Centrifugal Discharge Belt Series 500
	Buckets and Chain
	Bucket Punching (Belt)
	Formulas
DRAG COMPONENTS SECTION VII
	Safety
	Round Bottom Drag Conveyor
	Flat Bottom Drag Flat Bottom
Drag Conveyor
	Screw Elevator
	Warning & Safety Reminder
	Standard Screw Elevator Types
	SuperScrew Elevator Types
		Speed / Capacity
		D.S.D. (Dry Shaft Drive)
		Dimensions
	Clearance
	Speed / Capacity
	Standard Screw
Elevator
		Type BO
		Type B
Screw Conveyor  Data Sheet
VERTICAL SCREW ELEVATOR SECTION VIII
Bucket Elevator Data Sheet
Vertical Screw Data Sheet
                        
Document Text Contents
Page 1

H-1a

Index
SECTION H

PRODUCT PAGE

INTRODUCTION ...................................................................................................................................................... H-2

ENGINEERING SECTION I ...................................................................................................................................... H-3
Screw Conveyor Design Procedure ............................................................................................................. H-3
Material Classification Code Chart............................................................................................................... H-4
Selection of Conveyor Size and Speed...................................................................................................... H-15
Capacity Factor Tables............................................................................................................................... H-16
Capacity Table............................................................................................................................................ H-17
Lump Size Limitations and Table ............................................................................................................... H-18
Component Groups.................................................................................................................................... H-19
Component Group Selection...................................................................................................................... H-20
Hanger Bearing Selection .......................................................................................................................... H-21
Horsepower Calculation ............................................................................................................................. H-22
Torsional Ratings of Conveyor Screw Parts ............................................................................................... H-25
Horsepower Ratings of Conveyor Components......................................................................................... H-26
Screw Conveyor End Thrust and Expansion of Screw Conveyor .............................................................. H-27
Screw Conveyor Deflection........................................................................................................................ H-28
Inclined and Vertical Screw Conveyors...................................................................................................... H-30
Screw Feeders ........................................................................................................................................... H-31

DESIGN AND LAYOUT SECTION II ...................................................................................................................... H-34
Classification of Enclosure Types .............................................................................................................. H-34
Hand of Conveyors .................................................................................................................................... H-34
Classification of Special Continuous Weld Finishes................................................................................... H-37
Detailing ..................................................................................................................................................... H-38
Bolt Patterns............................................................................................................................................... H-40
Bolt Tables.................................................................................................................................................. H-42
Pipe Sizes and Weights ............................................................................................................................. H-44
Screw Conveyor Drive Arrangements........................................................................................................ H-45
Sample Work Sheet ................................................................................................................................... H-46
Standards Helicoid and Buttweld Sectional Screw Conveyors .................................................................. H-47

COMPONENT SECTION III.................................................................................................................................... H-49
Component Section.................................................................................................................................... H-50
Trough........................................................................................................................................................ H-52
Tubular Housing......................................................................................................................................... H-53
Flared Trough............................................................................................................................................. H-54
Discharges ................................................................................................................................................. H-55
Trough Ends............................................................................................................................................... H-60
Saddles and Feet/Trough End Flange ....................................................................................................... H-66
End Bearings.............................................................................................................................................. H-67
Thrust Bearings.......................................................................................................................................... H-68
Seals .......................................................................................................................................................... H-69
Conveyor Screws....................................................................................................................................... H-71
Coupling Bolts, Internal Collars and Lugs .................................................................................................. H-79
Shafts ......................................................................................................................................................... H-80
Hangers ..................................................................................................................................................... H-84
Hanger Bearings ........................................................................................................................................ H-90
Covers........................................................................................................................................................ H-91
Cover Fasteners......................................................................................................................................... H-92
Shrouds...................................................................................................................................................... H-93

SPECIAL FEATURES SECTION IV........................................................................................................................ H-95

Page 2

H-1b

Index
SECTION H

PRODUCT PAGE

INSTALLATION AND MAINTENANCE SECTION V ................................................................................................. H-113
Installation and Erection ................................................................................................................................. H-113
Operation and Maintenance........................................................................................................................... H-114
Hazardous Operations ................................................................................................................................... H-114
Warning & Safety Reminder .................................................................................. Inside Section Divider — H117

BUCKET ELEVATORS SECTION VI ......................................................................................................................... H-116
Warning & Safety Reminder ............................................................................ Inside Section Divider, H115–H117
Introduction..................................................................................................................................................... H-118
Centrifugal and Continuous Discharge Elevators

Standard Features Selection ..................................................................................................................... H-119
Procedure.............................................................................................................................................. H-120
Materials Table ...................................................................................................................................... H-121

Centrifugal Discharge Elevators
Series 100 and 200 Chain ......................................................................................................................... H-122
Series 100 and 200 Belt ............................................................................................................................ H-124

Continuous Discharge Elevators
Series 700 and 800 Chain ......................................................................................................................... H-126
Series 700 and 800 Belt ............................................................................................................................ H-128
Bucket Elevators Dimensions.................................................................................................................... H-130

High Speed Centrifugal Discharge Belt Elevators
Series 500.................................................................................................................................................. H-132

Buckets and Chain......................................................................................................................................... H-134
Bucket Punching ............................................................................................................................................ H-135
Calculations for Numbers of Buckets............................................................................................................. H-136

DRAG CONVEYORS.................................................................................................................................................. H-137

VERTICAL SCREW ELEVATORS ............................................................................................................................. H-146

Page 78

H-72

Conveyor
Screws

Basic Conveyor Flight and Pitch Types

Standard Pitch, Single Flight

Short Pitch, Single Flight

Half Pitch, Single Flight

Long Pitch, Single Flight

Variable Pitch, Single Flight

Double Pitch, Single Flight

Tapered, Standard Pitch, Single Flight

Single Cut-Flight, Standard Pitch

Cut & Folded Flight, Standard Pitch

Single Flight Ribbon

Standard Pitch with Paddles

Paddle

Conveyor screws with pitch
equal to screw diameter are
considered standard. They
are suitable for a wide range
of materials in most conven-
tional applications.

Flight pitch is reduced to 2⁄3
diameter. Recommended for
inclined or vertical applica-
tions. Used in screw feeders.
Shorter pitch retards flushing
of materials which fluidize.

Similar to short pitch, except
pitch is reduced to 1⁄2 stan-
dard pitch. Useful for vertical
or inclined applications, for
screw feeders and for han-
dling extremely fluid materi-
als.

Pitch is equal to 11⁄2 diame-
ters. Useful for agitating fluid
materials or for rapid move-
ment of very free-flowing
materials.

Flights have increasing pitch
and are used in screw feed-
ers to provide uniform with-
drawal of fine, free-flowing
materials over the full length
of the inlet opening.

Double flight, standard pitch
screws provide smooth, reg-
ular material flow and uni-
form movement of certain
types of materials.

Screw flights increase from
2⁄3 ful l diameter. Used in
screw feeders to provide uni-
form withdrawal of lumpy
materials. Generally equiva-
lent to and more economical
than variable pitch.

Screws are notched at regu-
lar intervals at outer edge.
Affords mixing action and
agitation of material in tran-
sit. Useful for moving materi-
als which tend to pack.

Folded flight segments lift
and spill the material. Par-
tially retarded flow provides
thorough mixing action. Ex-
cellent for heating, cooling or
aerating light substances.

Excellent for conveying sticky
or viscous materials. Open
space between flighting and
pipe eliminates collection and
build-up of the material.

Available in post type or
integral leg.

Adjustable paddles posi-
tioned between screw flights
oppose flow to provide gentle
but thorough mixing action.

Adjustable paddles provide
complete mixing action, and
controlled material flow.

Flow

Variable

As
Required

Page 79

H-73

Conveyor Screws
(Helicoid)

Helicoid Conveyor Screw Flighting

4 1 4H206–* 4HF206–* 11⁄4 15⁄8 3⁄16 3⁄32 11⁄2 9-101⁄2 40 4 16 1.3

6 11⁄2 6H304–* 6HF304–* 2 23⁄8 1⁄8 1⁄16 2 9-10 52 5 14 1.4

11⁄2 6H308–* 6HF308–* 2 23⁄8 1⁄4 1⁄8 2 9-10 62 6 28 2.8

11⁄2 6H312–* 6HF312–* 2 23⁄8 3⁄8 3⁄16 2 9-10 72 7 42 4.3

9 11⁄2 9H306–* 9HF306–* 2 23⁄8 3⁄16 3⁄32 2 9-10 70 7 31 3.2

11⁄2 9H312–* 9HF312–* 2 23⁄8 3⁄8 3⁄16 2 9-10 101 10 65 6.1

2 9H406–* 9HF406–* 21⁄2 27⁄8 3⁄16 3⁄32 2 9-10 91 9 30 3.0

2 9H412–* 9HF412–* 21⁄2 27⁄8 3⁄8 3⁄16 2 9-10 121 12 60 6.6

2 9H414–* 9HF414–* 21⁄2 27⁄8 7⁄16 7⁄32 2 9-10 131 13 70 6.3

10 11⁄2 10H306–* 10HF306–* 2 23⁄8 3⁄16 3⁄32 2 9-10 81 8 48 4.9

2 10H412–* 10HF412–* 21⁄2 27⁄8 3⁄8 3⁄16 2 9-10 130 13 76 7.7

12 2 12H408–* 12HF408–* 21⁄2 27⁄8 1⁄4 1⁄8 2 11-10 140 12 67 5.7

2 12H412–* 12HF412–* 21⁄2 27⁄8 3⁄8 3⁄16 2 11-10 180 15 102 8.6

27⁄16 12H508–* 12HF508–* 3 31⁄2 1⁄4 1⁄8 3 11-9 168 14 64 5.4

27⁄16 12H512–* 12HF512–* 3 31⁄2 3⁄8 3⁄16 3 11-9 198 17 96 8.2

3 12H614–* 12HF614–* 31⁄2 4 7⁄16 7⁄32 3 11-9 220 18 112 9.3

14 27⁄16 14H508–* 14HF508–* 3 31⁄2 1⁄4 1⁄8 3 11-9 170 14 84 7.1

3 14H614–* 14HF614–* 31⁄2 4 7⁄16 7⁄32 3 11-9 254 22 132 11.2

16 3 16H610–* 16HF610–* 31⁄2 4 5⁄16 5⁄32 3 11-9 228 19 120 10.0

▲ 3 16H614–* 16HF614–* 4 41⁄2 7⁄16 7⁄32 3 11-9 285 24 154 11.7

18 ▲ 3 18H610–* 18HF610–* 31⁄2 4 5⁄16 5⁄32 3 11-9 282 24 167 13.9

A

Screw
Diameter

Coupling
Diameter

Coupling
Bearing
Length

Standard
Length

Feet-Inches

Size
Part No.
Conveyor
Mounted

Size
Part No.
Flighting

Only

B D
Pipe Size

Flight
Thickness

H Average Weight

Complete Screw Flighting Only

F

Inside Outside
Inside Outside

G Standard
Length

Per
Foot

Standard
Length

Per
Foot

–* R For Right Hand
–* L For Left Hand

▲ Offered only in full pitch helicoid flighting.

Length Length

Page 156

H-160

Vertical Screw
Data Sheet

CUSTOMER:______________________________________________________________________ DATE QUOTE DUE:_____________________________________

ADDRESS:______________________________________________________________________________________________________________________________

CONTACT: _______________________________________________________________________ PHONE # _____________________________________________

VERTICAL SCREW: LIFT ___________________ DISCH. HEIGHT. __________________________

_________________________________________________________________________________

_________________________________________________________________________________

CAPACITY: ________________________ (CFH) (LBS/HR) (TPH) (MTPH) (BPH)

MATERIAL:__________________________________ DENSITY _____________________________ LBS/FT3 TEMP _____°F MOISTURE _________________%

LUMPS: MAX SIZE _____ IN LUMP CLASS: (Lump % of Total; I - 10%, II - 25%, III - 95%)

FED BY: _________________________________________________DISCHARGES TO: ______________________________________________________________

MAT’L OF CONSTR: M MILD STEEL M T304 M T316 M H.D. GALV. M OTHER

INSTALLATION: M NEW M REPLACEMENT M INDOORS M OUTDOORS

DRIVE: (DIRECT) (SCREW CONVEYOR DRIVE) (OTHER): _________________________________________________________ M V-BELTS M CHAIN M GUARD

MOTOR: M TEFC M X-PROOF M MAC M OTHER ___________________ NOTES __________________________________________________________________

NOTES: ________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

PAGE ___________ OF _____________ PREPARED BY_____________________________________________________________ DATE __________________

TROUGH: _____________________________________________________________________

SCREW: ______________________________________________________________________

SHAFT DIA: ____________________________________________________________________

HANGERS: ____________________________________________________________________

HRG. BRG.: ____________________________________________________________________

BOTTOM BRG.: _________________________________________________________________

BOTTOM SEAL: ________________________________________________________________

GASKETS: _____________________________________________________________________

DRIVE: _____________ HP AT _____________ RPM

REDUCER: ____________________________________________________________________

PAINT: ________________________________________________________________________

NOTES: _______________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

INLET
CONFIGURATION

M M M
(Indicate One): Elevator Straight Elevator

Offset to Left Inlet Offset to Right

L
ift

D
is

ch
a
rg

e
H

e
ig

h
t

Page 157

H-161

Vertical Screw
Data Sheet

CUSTOMER:______________________________________________________________________ DATE QUOTE DUE:_____________________________________

ADDRESS:______________________________________________________________________________________________________________________________

CONTACT: _______________________________________________________________________ PHONE # _____________________________________________

VERTICAL SCREW: LIFT ___________________ DISCH. HEIGHT. __________________________

_________________________________________________________________________________

_________________________________________________________________________________

CAPACITY: ________________________ (CFH) (LBS/HR) (TPH) (MTPH) (BPH)

MATERIAL:__________________________________ DENSITY _____________________________ LBS/FT3 TEMP _____°F MOISTURE _________________%

LUMPS: MAX SIZE _____ IN LUMP CLASS: (Lump % of Total; I - 10%, II - 25%, III - 95%)

FED BY: _________________________________________________DISCHARGES TO: ______________________________________________________________

MAT’L OF CONSTR: M MILD STEEL M T304 M T316 M H.D. GALV. M OTHER

INSTALLATION: M NEW M REPLACEMENT M INDOORS M OUTDOORS

DRIVE: (DIRECT) (SCREW CONVEYOR DRIVE) (OTHER): _________________________________________________________ M V-BELTS M CHAIN M GUARD

MOTOR: M TEFC M X-PROOF M MAC M OTHER ___________________ NOTES __________________________________________________________________

NOTES_________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

PAGE ___________ OF _____________ PREPARED BY_____________________________________________________________ DATE __________________

TROUGH: _____________________________________________________________________

SCREW: ______________________________________________________________________

SHAFT DIA: ____________________________________________________________________

HANGERS: ____________________________________________________________________

HRG. BRG.: ____________________________________________________________________

BOTTOM BRG.: _________________________________________________________________

BOTTOM SEAL: ________________________________________________________________

GASKETS: _____________________________________________________________________

DRIVE: _____________ HP AT _____________ RPM

REDUCER: ____________________________________________________________________

PAINT: ________________________________________________________________________

NOTES: _______________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

INLET
CONFIGURATION

M M M
(Indicate One): Elevator Straight Elevator

Offset to Left Inlet Offset to Right

L
ift

D
is

ch
a
rg

e
H

e
ig

h
t

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