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GRAIN DUST EXPLOSIONS

OPERATING SAFETY CONCERNS

Air

- Air must be present to provide the

oxygen necessary for combustion.

Fuel

- In this case the fuel is the grain

dust. The fi ner the dust, the easier it is

to ignite.

Suspension

- A pile of grain dust will

not explode, it must be suspended in air.

Minimum Concentration

- There must

be a minimum concentration of grain

dust in suspension in the air. Current

tests seem to indicate the minimum

concentration is about 0.4 oz/ft

Low Moisture

- The grain dust must

be of a relatively low moisture content.

Ambient air moisture or relative

humidity, has no bearing on the

potentiality of an explosion.

Ignition Source

- The ignition source

could come from a fi re, an overheated

bearing, a spark, welding or cutting

sparks or debris, hot metal, electric

failure, or other similar sources.

Confi ned Area

- An explosive action

must take place within a confi ned area.

Recognizing this hazard, MFS/YORK/STORMOR

believes that we all need to work together

to prevent grain dust explosions in order

to protect lives, jobs, property, and profi ts.

A number of preventive measures can be

taken to lesson the likelihood of an explosion.

Following are some suggested measures.

CONTROL THE DUST

Employ methods to clean the grain to

reduce the fi nes.

Use equipment to minimize the

breakage, such as decelerators. Corn

that is broken exposes the starch, the

most explosive element of the grain.

Use an outside

bag fi lter to capture the

dust.

Use an air system on the bucket

elevator and/or conveyor where needed

to reduce the dust inside grain elevators

and conveyors.

Spraying edible mineral oil on the grain

signifi cantly reduces the air-born dust

when handling grain.

Paint equipment that is in the interior of

a facility with a coating that is slick, not

allowing the dust to accumulate.

Enclose all conveyors to keep the dust

from escaping.

NOTE: Remember: Good housekeeping and safety

procedures will help protect lives, jobs, property,

and profi ts.

decelerators hazards operation

control the dust

bag filter

air system

edible mineral oil

Grain Dust Explosions

Safety

WARNING!

ALL INFORMATION ON THIS PAGE IS

WARNING INFORMATION!

GLOBAL

INDUSTRIES, INC.

Drag Conveyors

10230011

2016-06-14

Содержание D835

Страница 1: ...Publication Number 10230011 Rev 06 English Version Effective Date 2016 06 14 DRAG CONVEYORS Construction Owner s and Operator s Manual...

Страница 2: ...ies Please Contact BROWNIE SYSTEMS or Your Dealer If You Have Any Questions Concerning This Manual Keep This Manual In A Safe Place Available For Future Reference Be Alert kas001 1_2013 03 29 The safe...

Страница 3: ...kas001 4_2013 05 21 It is your responsibility as the owner builder operator or supervisor to know what specific requirements precautions and hazards exist and to make these known to all personnel wor...

Страница 4: ...al Safety Requirements 10 Lockout 11 Warning Decals 12 2 Specifications 14 General Specifications 14 Drag Conveyor Dimensions 17 Parts Identification 20 3 Pre Assembly 24 4 Assembly 27 Assemble Basic...

Страница 5: ...LIMITATIONS AND EXCLUSIONS There are no warranties or merchantability or fitness for a particular purpose with respect to any product manufactured or sold by the Company Motors provided by the Company...

Страница 6: ...ws all of which is the sole responsibility of the purchaser and those doing the assembly work Appurtenances and the accessories manufactured by us for use with our products conform only to applicable...

Страница 7: ...these optional items conform to applicable standards Global Industries Inc assumes no liability with respect to proper construction and inspection assembly or use of its products established under app...

Страница 8: ...t explosions in order to protect lives jobs property and profits A number of preventive measures can be taken to lesson the likelihood of an explosion Following are some suggested measures CONTROL THE...

Страница 9: ...plosions do not occur in times of high humidity False Dust explosions have occurred during rain storms b Grain dust explosions do not occur in wooden elevators False c Grain dust explosions do not occ...

Страница 10: ...O NOT SUBSTITUTE other safety procedures for the 4 basic safety rules Following the safety rules given for the safe use of your equipment requires a commitment at all levels within your company SECOND...

Страница 11: ...or failures to lockout Make certain no cover is removed unless power is locked out FOLLOW A PROPER LOCKOUT PROCEDURE kas005 1_2013 07 31 This suggested procedure must be performed EVERY TIME this equi...

Страница 12: ...NSPECTION SCHEDULE SAFE OPERATION OF THIS EQUIPMENT REQUIRES PROPER MAINTENANCE BEARING LOCATION __________________________________________________ DATE GREASE NAME DATE GREASE NAME MFS YORK STORMOR G...

Страница 13: ...the head drive side Safety 13 GLOBALINDUSTRIES INC Drag Conveyors 10230011 2016 06 14 1 per inspection section on the inspection door Exposed moving parts can cause severe injury LOCK OUT POWER befor...

Страница 14: ...y duty drive shaft and bearings TAIL Steel sprocket heavy duty shaft and bearings INTERMEDIATE SECTION Conveying trough 8 gage 4 27 mm bottom 3 16 4 8 mm or 1 4 6 4 mm Abrasion Resistance bottom avail...

Страница 15: ...Min Chain Speed Model D12100 Capacity 195 7 Bu Hr 1 RPM 3 952 ft Min Chain Speed Model D1650 Capacity 53 4 Bu Hr 1 RPM 1 906 ft Min Chain Speed Model D1690 Capacity 150 4 Bu Hr 1 RPM 3 019 ft Min Cha...

Страница 16: ...HR 1 RPM 0 015 m sec Chain Speed Model D12100 Capacity 4 970 MT HR 1 RPM 0 020 m sec Chain Speed Model D1650 Capacity 1 356 MT HR 1 RPM 0 010 m sec Chain Speed Model D1690 Capacity 3 820 MT HR 1 RPM...

Страница 17: ...EAD HEAD DISCHARGE 17 GLOBALINDUSTRIES INC Drag Conveyors 10230011 2016 06 14 Conveyor With In Line Intermediate Gate NOTE Conveyors are typically measured from inlet center to the outlet center P M N...

Страница 18: ...diate Gate STANDARD INLET UHMW PADDLES INTERMEDIATE RACK AND PINION GATE right angle gate shown Top View A B B C 34 1 2 876 mm Side View F square D K L Ordering Dimension 8 203 mm 37 1 2 953 mm A A P...

Страница 19: ...8 5 8 59 1 4 36 20 3 4 43 7 8 Horizontal Drag Conveyor Dimensions in Inches Model A B C D rd D sq E F G H J K L M N P D835 203 286 368 203 254 318 254 254 219 213 346 546 203 187 762 D855 203 286 368...

Страница 20: ...ndard NOTE Conveyors depicted in this manual do not always resemble the conveyor you are assembling TAIL INLET INTERMEDIATE SECTION 5 10 1524 mm 3048 mm BOTTOM SPLICE ROPE WHEEL or hand wheel IN LINE...

Страница 21: ...ER RETURN IDLER return flow intermediate section center cut away NOTE WH124 and WH132 chain is one directional Do not use these chains for any reversing applications 21 GLOBALINDUSTRIES INC Drag Conve...

Страница 22: ...e of the conveyor and viewed from above WH124 CHAIN A5 grain flow toward head chain section with uhmw paddles ATTACHMENT UHMW PADDLE LINK 5 16 x 1 1 2 BIN BOLTS paddle bolts 81X or 81XHH chain STEEL B...

Страница 23: ...06 14 WH132 CHAIN UHMW PADDLE LINK 5 16 x 1 1 2 BIN BOLTS paddle bolts ATTACHMENT grain flow toward head chain section with uhmw paddles NOTE The chain section on this page is shown as though it is in...

Страница 24: ...provide adequate conveyor support York conveyors are also not designed to support other equipment such as cleaners distributors spouting etc Separate structures must be provided for any extra equipme...

Страница 25: ...MOR s responsibility for damage to the equipment ends with acceptance by the delivering carrier Pre Assembly Bolt Head Identification Grade 2 Grade 5 Grade 8 Grade 8 2 Bolt Diameter Threads Inch Grade...

Страница 26: ...mpletely assemble supporting structures 2 Connect the basic components Use bottom splices 3 Check for alignment between sections Then add the chain and flight 4 Perform initial chain tightening tensio...

Страница 27: ...is normally shipped pre assembled but can be shipped knocked down The unit is made to self align as it is put together When constructing the main components check for alignment using a string along s...

Страница 28: ...om make certain the sides are square and parallel to each other Leave out the end bolts and use a drift pin so the rows of bottom holes will align Torque the nuts at 44 ft lb 59 66 N m or 6 08 kgf m N...

Страница 29: ...OM RETURN RAILS Side View head tail 2 51 mm gap 2 51 mm extension INTERMEDIATE SECTION Exploded View with return rails 3 8 FLANGE NUT 3 8 HEX BOLT 3 8 COUNTERSINK BOLT use 1 4 COUNTERSINK BOLTS and FL...

Страница 30: ...typical 2 51 mm offset Head I head to intermediate section Remove the head and first intermediate section covers Remove the head chain guides Bolt together the head and first intermediate section as s...

Страница 31: ...Intermediate Sections INTERMEDIATE SECTION INTERMEDIATE SECTION 3 8 x 1 HEX BOLT typical BOTTOM SPLICE CAULKING I connect intermediate sections Remove the intermediate section covers Bolt together th...

Страница 32: ...toward head I Find a large flat open area and connect the 10 305 cm chain sections Use connecting links and cotter pins See examples at right Bolt the UHMW paddles to the chain Use 5 16 or 3 8 diamete...

Страница 33: ...ial results The term carry over refers to the few kernels of grain which ride across the intermediate discharges on the chain assembly The amount of carry over is approximately 1 10 of 1 percent of th...

Страница 34: ...Assembly 34 GLOBALINDUSTRIES INC Drag Conveyors 10230011 2016 06 14 Tail INTERMEDIATE SECTION BOTTOM SPLICE TAIL...

Страница 35: ...ead and tail Make certain the chain and paddles are facing the correct way as shown in the following examples View each example on this page and the next Be certain the paddles do not face the wrong w...

Страница 36: ...WRONG WAY DAMAGE MAY OCCUR CORRECT INSTALLATION HEAD HEAD PADDLES AND BOLTS FACING THE CORRECT DIRECTION WH124 WH132 WH124 SHOWN PADDLE ON INCORRECT SIDE OF ATTACHMENT FOR DIRECTION OF FLOW WH124 WH13...

Страница 37: ...Eliminate the slack and pull the chain ends tight with a puller or come along suited for the conveyor length and connect the chain example below 1 or 2 chain paddles may need to be removed so they wi...

Страница 38: ...ok different than your conveyor N adjust the chain Make the final chain adjustment as shown Use the tail or head take up depending on where the take up is example b Make only 1 or 2 turns per side to...

Страница 39: ...ams down on top over standing seams Continue working forwards until the last cover is installed on the conveyor head Conveyor chain is already fully installed but is not shown in these examples NOTE C...

Страница 40: ...you assemble the reducer and motor mount note the examples on this page and the next page See the order and note the parts used in the assembly TA1 TA6 Typical Assembly example MOTOR MOUNT ASSEMBLY RE...

Страница 41: ...ufacturer s instructions for oil recommendations TA7 TA9 Typical Assembly example DODGETM reducers and motor mount assemblies MOTOR MOUNT ASSEMBLY REDUCER speed reducer CONVEYOR HEAD TORQUE ARM ROD CO...

Страница 42: ...14 Assembly Torque Arm Bracket Parts identification set PIVOT MOUNT TA1 TA6 only PIVOT MOUNT REINFORCEMENT PIVOT MOUNT BRACKET TA7 TA9 only TORQUE ARM BRACKET example 1 TORQUE ARM BRACKET example 2 TO...

Страница 43: ...14 Assembly Conveyor and Drive Parts identification set CONVEYOR INTERMEDIATE SECTION INSPECTION SECTION shown TORQUE ARM ROD ASSEMBLY CONVEYOR HEAD REDUCER MOTOR MOUNT ASSEMBLY BELT GUARD DODGETM re...

Страница 44: ...position Typical drive assemblies will use position 4 D12100 TA9 drive assemblies will use position Z 1 2 3 4 5 1 maximum left position 2 left position 3 center position 4 right position 5 maximum rig...

Страница 45: ...4 5 TA9 3 4 5 N torque arm bracket position Install the torque arm bracket to the conveyor intermediate section base in the correct location Select the correct intermediate section base bolt holes and...

Страница 46: ...lled so face A is closest to the conveyor head or the pivot mount can be installed so that face B is closest to the conveyor head The torque arm rod foot must install to the correct pivot mount face f...

Страница 47: ...e arm rod assembly as shown below and according to the manufacturer s instructions TA1 TA6 TORQUE ARM ROD INTERMEDIATE SECTION REDUCER HEAD TORQUE ARM ROD FOOT PIVOT MOUNT PIVOT MOUNT REINFORCEMENT To...

Страница 48: ...So the motor mount can be installed in 3 different positions M1 M2 and M3 M1 is the lowest position the motor mount can be installed to and M3 is the highest position the motor mount can be installed...

Страница 49: ...r MM Height TA1 M2 TA2 M2 TA3 M2 TA4 M1 D12100 D16150 D21200 Reducer MM Height TA1 M3 TA2 M3 TA3 M3 TA4 M2 TA5 M2 TA6 M2 TA7 M2 TA8 M2 TA9 M1 D855 D1275 D1690 D21100 D21120 Reducer MM Height TA1 M3 TA...

Страница 50: ...7 36 7 33 4 37 5 34 4 38 5 35 2 39 2 36 2 40 2 37 2 41 2 38 2 42 2 TA7 M2 na na 36 0 40 0 37 0 40 9 37 7 41 7 38 7 42 7 39 7 43 7 40 7 44 7 TA8 M2 na na 36 2 40 1 37 1 41 1 37 9 41 9 38 9 42 9 39 9 43...

Страница 51: ...na na na TA3 M2 592 693 617 719 635 739 660 765 681 782 na na na TA4 M2 681 782 706 808 724 826 749 851 770 871 795 897 na na TA5 M2 na 792 897 810 917 836 942 856 960 881 986 907 101 na TA6 M2 na 83...

Страница 52: ...shaped rectangular bottom plate Notice that there are 8 slots cut into the plate Assemble the uprights in the innermost slots The bottom plate may be mounted with the vertical flanges up or down as s...

Страница 53: ...53 GLOBALINDUSTRIES INC Drag Conveyors 10230011 2016 06 14 Assembly BELT GUARD ILLUSTRATION BELT GUARD a Example Completed Belt Guard Assembly...

Страница 54: ...uts Securely tighten the brackets to the motor mount and back cover 5 Install the motor and reducer sheaves Install the belts and adjust accordingly 6 Align hinges on the front cover to pins on the ba...

Страница 55: ...0 36 914 Inlet Hoppers Assembly 20 remove a partial cover section Cut and remove a cover section to allow the inlet to overlap the cover ends See the example below and the example on the next page 21...

Страница 56: ...mples on this page and the previous page Note the minimum distance M in which any inlet should be located from the tail NOTE Cut out per inlet provided use 3 8 bolts and flange nuts field drill INTERM...

Страница 57: ...06 14 Assembly Optional Dump Hopper DUMP HOPPER TAIL INTERMEDIATE SECTION CAULKING field drill field cut opening in cover Optional Dump Hopper With Shroud DUMP HOPPER WITH SHROUD TAIL field drill fiel...

Страница 58: ...OVER caulk as needed Assembly NOTE On all right angle drives the gate extension should face away from the walk area 23 Optional Remove the discharge hopper attached to the conveyor head Install the ga...

Страница 59: ...he gate in the place where the discharge hopper was example at right Then bolt the discharge hopper to the gate bottom Not all gates are electric Manual head in line rack and pinion gates are installe...

Страница 60: ...914 mm bolt centers Position and install the gate to the conveyor along with the intermediate discharge hopper Use shims as shown Electric rack and pinion gates are installed the same way towards hea...

Страница 61: ...tall the gate to the conveyor along with the weather cover and intermediate discharge hopper Electric rack and pinion gates are installed the same way use 3 8 bolts and flange nuts NOTE Bars on gates...

Страница 62: ...914 mm bolt centers Position the slide gate in the opening just cut Bolt discharge hopper ends to the intermediate bottom placing the hopper underneath the slide gate Shim as required use 3 8 bolts an...

Страница 63: ...al power PRE START UP INSPECTION Before operating the Conveyor check all areas for SAFETY and machine damage which could have happened during construction Then follow this step by step procedure for i...

Страница 64: ...f span V Belt Tension OPERATING THE CONVEYOR Since the Conveyor has been previously operated without material it may now be tested under load It is suggested the flow systems be checked next Allow onl...

Страница 65: ...o maintain the reducer as specified by the manufacturer Follow the manufacturer s recommendations for periodic oil level inspection and oil changes 3 Check the Drag Conveyor chain frequently for buckl...

Страница 66: ...improperly installed adjust the sprocket to center and make certain set screws are tight conveyor chain tension is not correct the chain tension is either too loose or too tight adjust it check chain...

Страница 67: ...ccordingly reducer overheating low or overfilled gear lubricant not filled according to manufacturer s recommendations refill wrong grade or weight of lubricant see manufacturer s recommendations refi...

Страница 68: ...interacting component such as a sprocket attachment or a variety of others can cause severe damage to the chain Such chain damage becomes a symptom of another problem and should not be considered a p...

Страница 69: ...RK STORMOR chain table for conveyors Worn out measurements are based on 3 5 elongation at a 100 lb 45 kg load B TENSILE FAILURE A tensile failure occurs when a single pull on the chain is great enough...

Страница 70: ...weeks or a few years depending on the amount of overload experienced Causes of metal fatigue could be the result of the exceptionally heavy loads sprocket interaction problems or chain overtightening...

Страница 71: ...he sprocket may cause 1 chain to skip a tooth or perhaps 1 sprocket key is sheared causing 1 side of the chain to carry the load Pin pull off may also be caused by a pin head being worn down leaving l...

Страница 72: ...25 bolt torque 25 52 bottom plate motor mount 52 bottom splice 20 30 31 34 builder 3 C capacity formulas 15 16 carry back cups 33 caulking 26 30 55 56 59 62 chain 10 22 26 32 33 35 36 63 65 66 67 68 6...

Страница 73: ...chain adjustments and rotate conveyor chain 38 follow a proper lockout procedure 11 follow these 4 basic safety rules 10 G general assembly instructions 26 general safety requirements 10 general safet...

Страница 74: ...K knee sections 31 L lagging 9 lamination 71 left hand or right hand drive 17 liability 2 limit switches 9 lockout 10 11 63 lubrication 65 M magnets 9 maintenance 11 65 management 10 11 metal fatigue...

Страница 75: ...and pinion gate 17 18 20 58 59 60 61 receiving inspection 25 reducer 26 40 41 43 44 47 49 50 51 52 63 64 65 reducer housing bolt torque values 52 reducer sheaves 54 requirements 3 6 return idlers 21 2...

Страница 76: ...arm II belt guard installation 54 torque arm pivot mount 40 torque arm rod 40 43 torque arm rod foot 46 47 torque arm rod installation 47 torque values 64 troubleshooting 66 U UHMW 15 16 UHMW paddles...

Страница 77: ...made 4 Pages 15 16 Model D25 was added 5 Pages 17 18 20 24 28 29 33 34 38 41 43 45 47 51 55 62 Drawing changes were made 6 Pages 21 23 Pages were added to accommodate adding WH132 chain 7 Pages 31 A...

Страница 78: ...syork com MANUFACTURED BY MFS YORK STORMOR A Division of GLOBAL Industries Inc 2016 Global Industries Inc All rights reserved P O Box 2105 2928 East Highway 30 Grand Island Nebraska 68801 U S A TEL 30...

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