Protecting Your Investment With Refractory Inspection Jim Allen
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Transcript of Protecting Your Investment With Refractory Inspection Jim Allen
![Page 1: Protecting Your Investment With Refractory Inspection Jim Allen](https://reader034.fdocuments.net/reader034/viewer/2022051311/542da21f219acd4e4b8b5775/html5/thumbnails/1.jpg)
Protecting Your Investment with Refractory Inspection
by Jim Allen
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Jim Allen – API 936 Level I IR
Began working in the masonry and refractory
trades in 1965 Bricklayers Local 7 Houston Texas.
Working specifically in refractory inspection for five years
Began inspection with Bob Beaver – PRI on the west
coast.
PRI was purchased by Conam – Mistras Services in 2007
Current job
COE of Refractory Inspection for Mistras Services -
Conam
Developing a complete refractory inspection training and
recruiting program nation wide
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Setting the Tone
Have a clear understanding of the purpose of
refractory and how to inspect it.
Definition of Refractory
Steps of Refractory Inspection
Tools of the Trade
Pitfalls
Reporting
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Setting the Tone
Sources
Harbison-Walker “Petroleum & Hydrocarbon
Processing Application Handbook” 2008
Harbison-Walker “Handbook of Refractory
Practice” 2005
OSHA “Technical Manual on Petroleum
Refining Processes”
Sonny James “The fundamentals of Refractory
Inspection with Infrared Thermography”
API Recommended Practice 936 Second
Addition
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Definition of Refractory
Refractory – Latin refractarious
• Resistant to control
• Stubborn
• Resistant to change
• Substance resistant to heat
Types of Refractory as used in Petrochemical
Environment
• Brick
• Castable
• Gunite
• Plastic
• Ceramic Fiber
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Purpose of Refractory
To Insulate
To Resist Abrasion
To Protect from Erosion
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What’s Involved in Refractory Inspection?
•Qualifying the Material
•Preview the Refractory Needs
•Review the Installation Procedures
•Qualifying the Installers
•Preliminary Inspection and Markup
•Repair Recommendations
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What’s Involved in Refractory Inspection? continued
•Inspecting the Tear Out and Surface
Preparation
•Anchor Layout and Welding
•Refractory Installation
•Sample Handling
•Dryout
•Turnaround Report
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What’s Involved in Refractory Inspection?
Qualifying the Material
• Clients Discretion
• Very important
• All Mixes are Not the Same
• Percentages of Key Ingredients Can Vary
• Bag Weights Can Vary
• Confidence in the Material Quality
• You Can Concentrate on Installation
• Resolves Conflicts if Turnaround Samples Fail
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What’s Involved in Refractory Inspection?
Previewing the Refractory Needs
• What type of Sampling Does the Client Expect?
• Review the Infrared Scans (hopefully they are
yours)
• Read the Vessels Inspection History
• Look at the Vessel Drawings
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What’s Involved in Refractory Inspection?
Review the Installation Procedures
• What are the Job Steps?
• Equipment to be Used
• Water Source
• Mixing Station Proximity to Work Site
• Welding Procedures
• Mixing Procedures
• Weather Prepared
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What’s Involved in Refractory Inspection?
Qualifying the Installers
•Why
• Competency Level
• Observe Equipment Use and Installer Technique
•How
• Simulate Working Conditions
• Gunning a Panel
• Ramming a Sample
• Mock Up of a Casting
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What’s Involved in Refractory Inspection?
Preliminary Inspection and Mark Up
• What is the Client Wanting?
• What Length of Run are they Expecting?
• What are the Future Plans for the Vessel?
• Are There Any Operational Changes Planned?
• Accessibility
• Safety! Safety! Safety!
• Scaffolding to All Areas
• Looks Can be Deceiving
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What’s Involved in Refractory Inspection?
Preliminary Inspection and Mark Up cont.
•Actual Inspection
• Do a Walk Through if Possible
• Remember the Hot Spots on IR Scan
• Be a Detective
• Hammer Test
• Mark Precisely
• Take Notes
• Take Pictures
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What’s Involved in Refractory Inspection?
Repair Recommendations
•Surface Prep
•Type and Pattern of Anchors
•Welding Electrodes
•Type of Material
•Material Thicknesses
•Application Technique
•Hold Points for Inspection
•Approximate Square Feet
•Curing
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What’s Involved in Refractory Inspection?
Tear Out and Wall Preparation
•Don’t Confine Yourself to Your Marks
•Additional Defective Refractory may be
Exposed
•Tear Out Can Cause Adjacent Refractory to
Dislodge
•Key the Repair Areas
•Check the Surface Preparation
• You Want it Clean
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What’s Involved in Refractory Inspection?
Anchors
•Anchors are Vitally Important
•Select proper size and Metallurgy
•Select Proper Layout for Application
•Is Pre-Heat Needed?
•Use the Correct Electrode
•Check the Welding
• Visual
• Hammer Test
• Bend
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What’s Involved in Refractory Inspection?
Refractory Installation
•Watch the Installation
• Check the Forms
• Is the Application Area Clean?
• Watch for Rebound
• Is the Timing Correct
• Time Between Batches
• Time From Mix to Use
• Is Curing Compound Being Applied
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What’s Involved in Refractory Inspection?
Refractory Installation – continued
•Watch the Mixing
• Is the Mixer Clean
• Does the Crew Have Written Mixing Procedures for the
Material and Do They Understand Them?
• Are They Using the Correct Material
• Are the Batch Numbers and Production Dates Correct?
• Is the Water Amount Correct
• Is the Mixing Time Correct?
•Check Mixing Logs
• Just Check Them
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What’s Involved in Refractory Inspection?
Refractory Installation – continued
•Sample Handling – What Does the Client Want?
• Are Samples Being Taken?
• Are The Proper Size and Number of Samples
Being Taken?
• Are They Labeled?
• Are Sample Locations Being Tracked?
• Who is Responsible for Sending Samples for
Testing and at What Frequency?
• Monitor the Test Results
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Dryout
Who Does the Dryout Schedule?
• Contractors Responsibilities
• Inspections Responsibilities
• Plants Responsibilities
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Pitfalls
•Not enough inspectors
•Conflicts Between TA Planning, Inspections
and Operations
•Uncooperative Contractor
•Pressure to Close
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Reporting
• Start Reports Early
• Brief History of the Vessel
• What Did You Find
• What Work Was Done
• What Can be Anticipated
• Drawings
• Pictures
• Presenting the Report to the Client
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Bad Weld
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Good Weld
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What Caused This. Look Up
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Reaction Furnace Brickwork
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Nozzleman Qualification
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Night Crew Gun Operation
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Sometimes Looks are Deceiving
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A Clue that all is not well up top
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It’s not always fun
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Questions ???
Jim Allen
COE Refractory Inspection