Views: 0 Author: Site Editor Publish Time: 2026-06-04 Origin: Site
1.Drilling removal and reconditioning of spent taphole sleeve bricks The converter taphole sleeve bricks suffer long-term erosion by high-temperature molten steel, skull buildup and bore deformation & blockage. This machine adopts electric rotation plus percussion to drill out worn sleeve bricks, clear solidified steel and residual slag inside the hole, and ream the taphole to standard inner diameter for accurate fitting of new taphole sleeve bricks. One hole can be finished within 5~10 minutes. It replaces traditional manual oxygen lancing and sledgehammer breaking, cutting over 60% consumption of oxygen and lancing pipes.
2.New taphole piercing for newly lined furnace After refractory relining, drill a taphole with specified inclination at preset furnace position to guarantee smooth steel tapping without flow deviation or steel leakage.
3.Safety improvement, cost reduction & shorter converter downtime
Remote electric control keeps operators away from hazards of high-temp hot steel splash and gas burn, eliminating high-risk close-range manual work.
Over 30 minutes saved per taphole replacement, accelerating converter turnaround and raising steel output.
Controllable drilling depth prevents damage to permanent furnace lining and reduces refractory maintenance cost.
Applicable to all specifications of BOF top-blown oxygen converters (30t ~ 350t) in steelmaking plants.
