Coating of Tuyere Coolers for the Blast Furnace
Extensive in-process damage to the external diameter of the Tuyere Cooler component, used in Blast Furnace operations is a common occurrence and can lead to reduced processing capability and equipment downtime. This is especially pertinent when the substrate damage results in the Tuyere becoming lodged in the parent housing and having to be forcibly removed. Tata Steel together with Monitor Coatings Limited have developed a thermal spray deposition which would help negate the potential damage to the component and thus extend its useful processing life by reducing the
build up and adhesion of Blast furnace by-products. After extensive trials a composite coating structure comprising of a High Velocity Oxy Fuel (HVOF) deposited Nickel-Chromium coating together with a thermally converted slurry addition was used to protect the affected external surface.
This coating produces a pore free surface which inhibits the adhesion of the process by-products whilst protecting the substrate from extensive wear by chemical erosion. Initial coating trials have now been completed and a component has been prepared via the Tata Steel Projects facility in Workington.
For more information relating to Monitor Coating’s technology, please contact; Derek Jackson Technical Director, Monitor Coatings
Stephen Shepherd Projects Director, Monitor Coatings
E: derek@monitorcoatings.com M: +44 (0) 7894 697 903 T: +44 (0) 191 293 70 40 F: +44 (0) 191 293 70 41
E: stephen@monitorcoatings.com M: +44 (0) 7703 109 001 T: +44 (0) 191 293 70 40 F: +44 (0) 191 2937 0 41
SteelTec
Monitor Coatings 2 Elm Road, West Chirton North Industrial Estate, North Shields, Newcastle upon Tyne, NE29 8SE United Kingdom www.monitorcoatings.com