Induscoat
Technical guide

Wear protection in an integrated steel plant, circuit by circuit: raw materials, sinter, coke, blast furnace and slag

Steel plants handle hard, abrasive and often hot materials: ore and pellets, sinter, coke, fluxes and slag. Where each circuit wears — stockyard transfers, sinter screens and coolers, coke wharf, blast-furnace charging, dust and slag systems — and how temperature shapes the lining.

Published

Evidence-first editorial standard

This guide separates observed facts, engineering assumptions and data that still require confirmation. It does not promise a universal service life or replace the exact product data and project specification.

An integrated steel plant moves hard, abrasive and often hot bulk materials

Iron ore fines and pellets, sinter, coke, limestone and dolomite, and later slag and dust are conveyed, screened, stored and charged in large tonnages. The materials are hard enough to cut steel quickly, coarse enough to strike hard at transfers, and in several circuits hot enough to rule out many liners and adhesives. The general picture is on our steel and metallurgy page.

Raw materials yard and stockhouse: transfers, bins and screens

Stacking, reclaiming and blending lines carry ore and pellets through many transfer chutes, where impact at the drop and sliding abrasion downstream repeat at every point. Stockhouse bins and their outlets, weigh hoppers and vibrating feeders see continuous sliding wear. Alumina tiles in IC TILE suit the sliding faces; screen feed boxes need liners that tolerate vibration, as covered in vibrating screen feed box liners.

Sinter plant and pellet handling: heat plus coarse abrasion

After the sinter strand, hot sinter is broken, screened and cooled; crusher outlets, hot screens, cooler discharge and the first conveyors combine impact, sliding wear and temperature. Fired pellets are hard and round and wear by rolling and sliding. The fixing must be chosen for the steel temperature, and toughened ceramic such as IC IMPACT with a weld-on fixing is the common ceramic option, as discussed in sinter and pellet handling. Where it is too hot, overlay plate remains the answer, compared in chromium carbide overlay or ceramic.

Coke and blast-furnace charging: impact zones that must be zoned

Coke is abrasive and friable, and its handling from the coke wharf through screens to the stockhouse wears chutes and screens. Blast-furnace charging — conveyor head chutes, the top receiving hopper, the material gates and the rotating distribution chute — takes heavy impact and sliding wear, and access is rare. Zoning by mechanism, as described in blast-furnace charging chute zoning, decides where ceramic, overlay or a material bed belongs.

Dust, slag and secondary circuits: erosion and chemistry

Blast-furnace gas cleaning, dust catchers and dust conveying lines see erosion by fine, hard particles, at bends and impact points of ducts and pipes. Slag granulation and handling combine abrasion with water and heat, and in-plant pneumatic transport of fluxes, carbon and additives wears bends like any pneumatic line. Shaped parts in IC CUSTOM cover the transitions and nozzles that standard tiles cannot.

Where to start in your plant

List the points that cause the most frequent stoppages or interventions — often a few stockhouse outlets, sinter cooler discharge, coke screens and BF charging chutes — with material, temperature, drop height and failure history for each. Send that list with drawings and photos, and Induscoat proposes a lining per point; the transfer approach is on our page on impact and transfer point linings, and the bins on ceramic linings for chutes and hoppers. Comparable maps exist for cement and power plants.

From diagnosis to action

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Product ranges and application guides are kept separate so you can move from the wear mechanism to a suitable construction without confusing a product with an engineering problem.

Application review

Turn this guide into a review of your equipment

Send the operating facts, photographs and a dimensioned drawing. A draft opens in your email application; nothing is received until you review and send it.

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Use the other guides to compare materials, structure selection or prepare a technical specification.