Wear Protection
The advantages of repair and wear protection
Reparar y proteger la central puede resultar más rentable que comprar una nueva en un clima económico adverso.
Reparaturen und Verschleißschutz von Anlagen können in einer ungünstigen Wirtschaftslage kostengünstiger als ein Neukauf sein.
Repair and wear protection of plant can be more cost-effective than buying new in an adverse economic climate.
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n economic downturns, especially of the type and severity currently being experienced in the global market, the focus for users of plant inevitably becomes repair, rather than replacement, should plant and
equipment fail. In such adverse climates, Cap-ex budgets are inevitably squeezed, or frozen altogether, and the pressure is on maintenance engineers to make the best with what they’ve got.
In normal economic times, the cost and time pressures that process industries are subject to generally dictates that, in breakdown situations, the fastest solution available becomes the preferred option. However, the larger or more specialist a piece of plant, the less likely it is to be available quickly, so repair then becomes the default option. At lower levels of activity, though, repair becomes the preferred option due to its inherent cost benefits.
Concentrated design As evidence of this, wear protection specialist, Kingfisher Industrial has calculated that the cost of repairing plant and equipment such as transfer chutes, hoppers and silos, grinding mills and classifiers, screens and underpans, tanks, cyclones and separators, fan casings, feeders and conveyors, ducts and driers, (etc) averages around one- third that of buying new. “Repair of worn equipment, or perforated
pipework is a really viable option at any time, but more so during periods of belt tightening,” said John Connolly, MD of Kingfisher Industrial. “Using a combination of ceramic, metallic and polymer lining systems, we have had overwhelming success in protecting equipment and extending the service life of process plant and equipment that, without intervention, would otherwise have been designated as scrap. “Our experience is that every installation
requiring repair or refurbishment using wear protection has its own specific requirements in terms of lining material.” He continued: “Tere is no ‘one- size- fits- all
solution’, due to the levels of abrasion of different conveyed materials. Tis contrasts with the procedures in many companies today, where the method of repair with wear protection is almost exclusively based upon applying hard metal deposits using traditional welding methods. “Although this can work in some instances as a means of extending plant life, it is not cost
Fig. 1. The proposal involved Kingfisher in undertaking a structural NDT inspection, mechanical refurbishment activities and lining of the slag granulator distribution chute with the company’s K-ALOX ceramic lining system to protect against erosion and corrosion.
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