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Blast Furnace Dust Discharge Valve Refurbishment

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Blast Furnace Dust Discharge Valve Refurbishment

Industry                     

Manufacturing

Date

June 2018

Substrate

Steel

Products

Chem-tect™ RB 364

Environment

Blast furnace gas, combined with particulate at elevated temperatures 70degC

Challenge

Rebuild the internal profiles corroded and eroded away up to 10-15mm

Chemco’s Solution

RB 364 was specified for its suitability to provide corrosion and erosion protection

On arrival suffering corrosion erosion
Condition on arrival
Refurbishment process
After Coating Internals

Scope

Abrasive blast internals and externals, taking care not to damage the insert sealing ring.

Internal application of RB 364 to a minimum of 500µm

Sand smooth and pitfill with RB 364

Cast insert where required

Application of 2nd coat of RB 364

Results

Coating was completed to client’s expectations and future scheduled inspections will ensure long term protection and an extended life expectancy of the Blast Furnace valve.