Products and Services -> Coal Pulverizers

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Tables

RPM has extensive experience overlaying pulverizer mill tables of all sizes and styles. We can rebuild tables in-house or on-site depending on your needs. We also offer cast-steel table replacements as well as overlayed table segments guaranteed to fit.

Click on one of the links below to proceed to your particular area of interest.

• Rebuild Worn Coal Pulverizer Tables On-Site
• Hardface New CE, RS and MPS Coal Pulverizer Table Segments at RPM
• Rebuild Worn MPS-style Coal Pulverizer Table Segments at RPM
• RPM Cast Steel Core Tables and Segments
• RPM Cast Steel Table Segments
• Available Alloy Options

Rebuild Worn Coal Pulverizer Tables On-Site

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RPM & Associates can rebuild worn coal pulverizer tables on-site at your plant. The figures below outline the typical process that we follow when rebuilding coal pulverizer tables on-site.

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RPM Staff Checks In With Plant Contact and Completes Any Required Orientation and Safety Tasks RPM Staff Sets Up Equipment (welding heads, rotary ground, limit switches, auxiliary drive and portable ventilation equipment) and Inspects Mill Table for Anomalies Worn Table Profile is Measured With Metal Template Before Repairs Are Initiated Required Pre-Repairs Are Performed Prior to Firing Up Automatic Welding System		On site ventilation and containment of Hexavalent chrome weld fume
Perform Required Automatic Welding Until Table Profile Meets Metal Template Notify Customer for Final Inspection, Approval, and Acceptance Exchange Appropriate Data for RPM “Pulverizer Wear Parts Monitoring Program” with Customer On-Site Designated Representative Pack Up Welding Equipment, Remove Any Safety Locks, and Return to RPM		Finished CE1043 Table Verified with Metal Template

Hardface New CE, RS and MPS Coal Pulverizer Table Segments at RPM

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RPM & Associates can also hardface new table segments at our shop. The figures below outline the typical process that we follow when hardfacing coal pulverizer table segments at RPM's shop.

• Rebuilt Segments Have Double The Wear Life of New Segments
  
  
• New Table Segments Shipped to RPM
  
  
• RPM Assembles Table Segments and Applies 3 or 4 Passes of Hardfacing to New Segments
  
  
• New Hardfaced Segments Are Post-Repaired and Remarked With Sequencing Numbers That Are Used For Assembly at Plant

Place your mouse over the images below to see an expanded view.

New Table Segments In Fixture Being Hardfaced

New Table Segments After Hardfacing (CE- and RS-style segments)

Assembled and Match Marked at RPM (CE- and RS-style segments)

Post-repaired Hardfaced Table Segments (CE- and RS -style segments)

Post-repaired Hardfaced Table Segments (MPS-style Segments)

Assembled and Match Marked at RPM (MPS-style Segments)

 Rebuild Worn MPS-style Coal Pulverizer Table Segments at RPM

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Shown below is an example of a rebuild of a worn MPS89 coal pulverizer table that was performed at RPM.

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Worn Segment "As Received"

Segments Assembled in Fixture Ready For Automatic Hardfacing

Completed Segments Ready for Disassembly

Rebuilding In Progress

Final Profile Checked with Metal Template

Completely Rebuilt Segment

 RPM Cast Steel Core Tables

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• Cast Steel Parts Will Not Crack or Break
• Cast Steel Alloys Resist Heat Better Than Cast Iron Parts
• Cast Steel is Weldable – ID, OD, Anywhere!
• Cast Steel Cores are “Forever Purchases” as They are Always Repairable

Two example cast steel tables are shown in the figures below.

20,000 Pound CE1043 Table Exact Fit Replacement

Wear Segments and Clamping System Incorporated into Table 14,000 Pound Foster Wheeler MB18 Table with Vane Wheel

RPM Cast Steel Table Segments

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RPM Cast Steel Segments are specifically engineered for long wear life.

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Slide 1: RPM Cast Steel Bowl Segment

Slide 2: Bottom View

Slide 3: Bottom Profile

Slide 4: Keyed Segment Bottom

Slide 5: End Profile

Slide 6: Fit-Tested Prior to Delivery

Slide 7: Installed and Ready for Hardfacing

Slide 8: Benefits

Available Alloy Options

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• Standard High Chrome Carbide with Molybdenum Such as Stoody 100HC
• Micro-Alloyed High Chrome Carbides Such as RPM-CP3 Which has ~30% Increased Wear Life Over Standard High Chrome Carbide Alloys
• Continuous Wear Band of Tungsten Carbide Chips Embedded in High Chrome Carbide

About RPM & Associates

Building real parts from CAD files. RPM's two laser deposition labs can employ free-form laser manufacturing which can drastically reduce Research and Development time and expense.

Rapid City, the Black Hills, and South Dakota ... Our Home

Roughly 2,000 Rocky Mountain elk live in western South Dakota. These majestic animals are occasionally seen from roads.