pulp and paper industry maintenance guide
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TRANSCRIPT
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Pulp & Paper IndustriesMaintenance, Repair and Operating Products From Dow Corning
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MRO Products From Dow CorningHelp Keep Your Plant Running ProfitablyProcess equipment failure can bring an entire pulp andpaper or converting plant to a screeching halt. Keeping thatmachinery working productively is a tough job calling fornon-stop attention to detail and products that offer depend-able performance, even at extreme temperatures andpressures and in hostile chemical environments.
The scientists and engineers at Dow Corning understand theunique demands of pulp and paper processing. They havedeveloped a broad line of general-purpose and specialtylubricants, sealants, fluids and compounds to meet thespecial needs of your industry. These products can:
• Extend machine life
• Reduce equipment downtime
• Lengthen maintenance intervals
• Reduce maintenance time
• Increase production
• Reduce energy consumption
MRO products from Dow Corning help you maximize theefficiency and productivity of your operation. They areformulated to last longer on equipment from gears, tomotors, to cutters, enabling your maintenance personnelto spend their valuable time more wisely.
The Best Products for the JobNo matter how demanding the application, how extremethe temperatures, or how corrosive the environment,Dow Corning has a product tough enough for the job.This brochure can help you select the appropriate productsfor a wide variety of Pulp and Paper Industry applications,including:
• Agitators
• Bearings
• Belts
• Chains
• Conveyors
• Corrosion Protection
• Cutting Applications
• Flanges
• Gear Boxes
• Motors
• Pumps
• Release
• Threaded Connections
• Valves
There are more than 1,500 Dow Corning distributor loca-tions for these products in North America, each equipped toefficiently serve the Pulp and Paper Industries.
©©1999 Dow Corning Corporation. All rights reserved.
Wood Yard & Chip PreparationConveyors
Chains
Threaded Connections
Belts
Motors
Paper Mill OperationsStock Preparation
Wet-End Operations
• Gear Boxes
• Pumps
• Valves
• Flanges
• Motors
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Pulp Mill OperationsValves
Pumps
Agitators
Bearings
To Pulp Mill
To Paper Mill
Dry-End Operations
• Oven Dryer Fan Bearings
• Cutting Applications
• Release
• Gear Boxes
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Application
General purpose;agitator motorbearings; sleeve,ball and rollerbearings
Rolling elementand plainbearings; synthetic
Bearings operat-ing at highspeeds; high-shock loadbearing indebarking andchippingequipment
Oven dryer fanbearings; lime kilnbearings
Oven dryer fanbearings operatingat higher tempera-tures; lime kilnbearings
Agitator motorbearings; pulpingprocess bearings;bearings used inbleaching areas
Sealed-for-lifebearings
Product Recommendation
Dow Corning ® BR2-Plus Multi-Purpose E.P. Grease
Molykote® G-4700 ExtremePressure Synthetic Grease
Dow Corning ® BG 20 HighPerformance Synthetic Grease
Dow Corning ® 44 HighTemperature Bearing Grease
Dow Corning ® 41 ExtremeHigh Temperature BearingGrease
Dow Corning ® 3451 ChemicalResistant Bearing Grease
Dow Corning ® 3452 ChemicalResistant Valve Lubricant
Features/Benefits
Heavy duty extreme pressure lubricant;contains MoS2; good water washoutresistance
Synthetic; handles extreme loads andapplications involving vibration and/orshock loading
Handles high speed, high load, hightemperature combinations
Resists oxidation, moisture, corrosiveatmospheres
Heat stable; resists oxidation, moisture,corrosive atmospheres
Resists deterioration caused by exposureto alkaline solutions and water washout;high loads; high speeds
Resists deterioration; high loads; lowspeeds
Agitators
MotorsSee “Motors” section.
Mechanical Seals• For general purpose lubrication – Dow Corning ® 111 Valve
Lubricant & Sealant
• For lubricating seals exposed to harsh chemicals andsolvents – Dow Corning ® 3452 Chemical Resistant ValveLubricant – effective over a wide temperature range
BearingsSpeed,Dn Value2
250,000
350,000
550,000
300,000
75,000
200,000
75,000
TemperatureRange1, °F (°C)
-20 to 265(-28 to 129)
-40 to 350(-40 to 176)
-50 to 360(-45 to 182)
-40 to 400(-40 to 204)
0 to 550(-17 to 287)
-40 to 450(-40 to 232)
-20 to 450(-28 to 232)
1Estimated service temperatures based on product formulation and laboratory testing. Actual service temperature range is dependent on otherfactors including the specific application environment.2Dn value = shaft size of bearing in mm x rpm; based on estimate.
Belts
• To prolong belt life and eliminate squeal – Dow Corning ®
111 Valve Lubricant & Sealant
• To reduce wood chip or paper dust build-up –Dow Corning ® 316 Silicone Release Spray
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Chains
• Dry film lubrication – for dusty areas where wheels andsprockets cause excessive wear – Dow Corning ® 321 DryFilm Lubricant
• Lubricating oil – for high-temperature applications wherefailed lubricants leave residue – Dow Corning ® C-40 HighTemperature Chain Lubricant
Conveyors
• For sticking or stopped rollers, excessive power consump-tion or water washout problems – Dow Corning ® BR2-PlusMulti-Purpose E.P. Grease
• For water washout resistance and high load-handlingcapability on Jack ladders and chain conveyors
- Dow Corning ® BR2-Plus Multi-Purpose E.P. Grease – for extreme loads at moderate to high speeds
- Dow Corning ® 1122 Chain and Open Gear Lube – for high loads and low speeds
• For dust and pulp build-up on guide rails –Dow Corning ® 316 Silicone Release Spray
• For chip conveyors and other dusty environments –Dow Corning ® 321 Dry Film Lubricant
Corrosion Protection
• Dow Corning ® Metal Protective Coating can be applied bybrush, spray or dip to protect exposed metal parts fromcorrosion, extending equipment life, reducing start-uppreparation, part clean-up and maintenance time
Cutting Applications
• Dow Corning ® 557 Silicone Dry Film Lubricant extendsblade life, sharpening and replacement intervals oncutters, slitters, flying and static knives, reducing wear,stick-slip and build-up; will not stain
Flanges
• For general purpose sealing – Dow Corning ® 732Multi-Purpose Sealant
• For chemical exposure – Dow Corning ® 730 SolventResistant Sealant
Rolls of paper that have been produced using Dow Corning® brandlubricants are being inspected and readied for shipment.
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Gear Boxes
Application
Gear box seals
Oil-lubricated gearboxes/speedreducers
Overhaul, rebuild/open gearsassembly/run-in
Open gearsoperation
Dry lubrication foropen gearing
Product Recommendation
Dow Corning ® 55 O-RingLubricant
Dow Corning ® M Gear OilAdditive
Dow Corning ® G-n MetalAssembly Paste/Spray
Dow Corning ® 1122 Chainand Open Gear Lube
Dow Corning ® 321 Dry FilmLubricant
Features/Benefits
Reduces leakage by slightly swelling seals
Reduces friction and wear; extends equipment life;helps reduce power consumption, noise andtemperature generation
Reduces start-up friction and wear; aids in press fitand assembly; good pre-coating for gears
Thick, tacky consistency sticks to gear teeth;provides extreme-pressure lubrication
Doesn’t collect dust; supplies metal-to-metalextreme-pressure lubrication
TemperatureRange1, °F (°C)
-85 to 350(-64 to 176)
0 to 250(-17 to 121)
0 to 750(-17 to 398)
32 to 320(0 to 159)
-290 to 840(-178 to 448)
1Estimated service temperatures based on product formulation and laboratory testing. Actual service temperature range is dependent on otherfactors including the specific application environment.
Motors
Shafts• To protect motor shafts and metal parts from corrosion –
Dow Corning ® Metal Protective Coating
Motor Windings• For extra protection against moisture and dust –
Dow Corning ® 1890 Protective Coating
Motor Bearing Grease RecommendationsSee “Bearings” section.
Threaded ConnectionsSee “Threaded Connections” section.
Dow Corning ® M Gear Oil Additivesaves company $56,700 per year
A pulp and paper mill producing 600 tons of paper a dayreported that by using Dow Corning ® M Gear Oil Additivein their paper machine gear reducers, they were able toreduce power consumption by about 15 percent, whichtranslated to an annual cost savings of $56,700.
When added to premium-grade mineral oil, M Gear OilAdditive reduces metal-to-metal friction, which not onlyreduces energy consumption, but also prolongs gear life.
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Valves
Application
Bleaching processvalves
Water and non-aggressive chemicalvalves; plug, ball,gate, butterfly andautomated valves
O-rings where slightswelling is required
Product Recommendation
Dow Corning ® 3452 ChemicalResistant Valve Lubricant
Dow Corning ® 111 ValveLubricant & Sealant
Dow Corning ® 55 O-RingLubricant
Features/Benefits
Resists chemical attack and chlorine bleach-out;heavy load ability; water-resistant; NLGI 3
Thick, tacky, grease-like; excellent plastic andrubber lubricant
Resists water washout; non-melting; protects andlubricates valves
TemperatureRange1, °F (°C)
-20 to 450(-28 to 232)
-40 to 400(-40 to 204)
-85 to 350(-64 to 176)
1Estimated service temperatures based on product formulation and laboratory testing. Actual service temperature range is dependent on otherfactors including the specific application environment.
Pumps
Seal Dressings• Where swelling is needed – Dow Corning ® 55 O-Ring
Lubricant
• Other – Dow Corning ® 111 Valve Lubricant & Sealant
Vacuum Pumps• Seal gaskets with low-volatility Dow Corning ® High-Vacuum
Grease
Release
• Dow Corning ® 316 Silicone Release Spray- A general-purpose release coating that reduces clean-up by reducing wood chip or paper dust build-up
- Can be used on embossing rolls to speed production
Threaded Connections
Disassembly• Pene-Lube™ penetrates rusted, difficult-to-disassemble
connections, displacing water, aiding non-destructivedisassembly
• Moly Pene-Lube™ – general-purpose lubricant; containsMoS2 for improved disassembly and load handling
Pre-Assembly• General purpose – Dow Corning ® 1000 High Temperature
Anti-Seize Paste – reduces friction, aids assembly, sealsand aids in non-destructive disassembly
• Stainless steel and other alloys – Molykote ® P 37 UltrapureHigh Temperature Paste – non-metal antiseize
• Lead screws- For grease lubrication – Dow Corning ® BR2-PlusMulti Purpose E.P. Grease
- To avoid dust build-up on manual screws –Dow Corning ® 321 Dry Film Lubricant
Dow Corning® brand sealants can resist many harsh chemicalsused in the paper making process.
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Dow Corning Select-A-FAXFree product data sheets for the products describedin this brochure are available by fax 24 hours a day,7 days a week through Dow Corning Select-A-FAX.
1. If you are a Dow Corning customer, call 1-800-44-FAX-DC (1-800-443-2932) on a touch-tone phone;if you are a Dow Corning distributor, call 1-800-932-9489.
2. Follow the simple, voice-prompted instructions; beprepared to provide the literature number(s) forthe data sheets you would like (see list below).
Product Literature #
Dow Corning ® Sealant Selector Guide .............. 2599565
Dow Corning ® BG 20 High PerformanceSynthetic Grease ............................................ 2537965
Dow Corning ® BR2-Plus Multi-PurposeE.P. Grease .....................................................7142065
Molykote® P 37 UltrapureHigh Temperature Paste ...............................1071665
Dow Corning ® C-40 High TemperatureChain Lubricant ............................................ 7135365
Dow Corning ® 41 Extreme HighTemperature Bearing Grease ........................ 1081465
Dow Corning ® 44 High TemperatureBearing Grease............................................... 1081465
Dow Corning ® 55 O-Ring Lubricant .................. 1077365
Dow Corning ® 111 ValveLubricant & Sealant ....................................... 7144865
Dow Corning ® 316 SiliconeRelease Spray .................................................1072965
Dow Corning ® 321 Dry Film Lubricant ............. 1080965
Dow Corning ® 557 Silicone Dry FilmLubricant ........................................................1080865
Dow Corning ® 730 Solvent ResistantSealant ............................................................1080765
Dow Corning ® 732 Multi-Purpose Sealant .........1062665
Dow Corning ® 1000 High TemperatureAnti-Seize Paste ..............................................2558665
Dow Corning ® 1122 Chain andOpen Gear Lube ........................................... 2478765
Dow Corning ® 1890 Protective Coating ........... 1082365
Dow Corning ® 3451 Chemical ResistantBearing Grease .............................................. 1081365
Dow Corning ® 3452 Chemical ResistantValve Lubricant ............................................. 1081365
Molykote® G-4700 ExtremePressure Synthetic Grease .............................1086465
Dow Corning ® G-n MetalAssembly Paste/Spray ....................................7148565
Dow Corning ® High-Vacuum Grease .................2291165
Dow Corning ® M Gear Oil Additive ...................7134965
Dow Corning ® Metal Protective Coating ........... 7131065
Moly Pene-Lube ™ ................................ Call Dow Corning
Pene-Lube ™ ..........................................................7104665
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Dow Corning Americas Corporate Headquarters
Dow Corning CorporationP.O. Box 994Midland, Michigan 48686-0994Phone: (517) 496-4000
Your Dow Corning Distributor:
Dow Corning believes that the information in this publication is an accurate description of thetypical characteristics and/or uses of the product or products, but it is your responsibility tothoroughly test the product in your specific application to determine its performance, efficacyand safety. Suggestions of uses should not be taken as inducements to infringe any particularpatent.
Dow Corning and Molykote are registered trademarks of Dow Corning Corporation. Pene-Lube andMoly Pene-Lube are trademarks of Dow Corning Corporation.
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Printed in USA AGP4278 Form No. 10-894-99
Dow Corning CorporationMidland, Michigan 48686-0994 FC AV3733