SULPHURIC ACID
PLANT SERVICES
DGC AFRICA has significant experience in the provision of acid plant maintenance and shutdown services; including upgrades, repairs and preventative maintenance on sulphuric acid plants.
The range of services includes tower inspections, element replacement, and repair, packing installation and removal, distributor repair and replacement, catalyst handling, acid tank cleaning, and neutralization.
DGC AFRICA’s scope of acid plant maintenance and shutdown services include:
ACID TOWER
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Welding repairs to tube sheet
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Removal and installation of new tube sheets
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Installation of raised flanges on tube sheet.
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Removal and replacement of drip ring.
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Fabrication of mist eliminator drain pipes.
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Remove and replace hanger rods.
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Remove and replace acid distribution.
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Replace alloy feed pipes.
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Vacuum ceramic packing and reload with new ceramic packing.
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Remove and replace grid blocks and partition rings.
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Remove and replace alludar beams.
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Inspect & clean the gas inlet duct, tower bottom, acid outlet strainer clean or replace.
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Remove and replace thimbles on acid nozzles.
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Remove and replace acid nozzles.
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Remove and replace MONDI piping.
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Welding on acid towers Carbon steel, SX, Zecor internal.
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Remove and replace ducts.
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Acid & Sulfate neutralization.
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Storage tank cleaning & neutralization.
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Clean and inspect pump tanks.
CONVERTER SERVICE
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Screening Catalyst (dust-free).
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Gravity loading catalyst (dust-free).
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Converter inspections & repairs.
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Remove and replace grates & support posts.
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Remove and replace screens.
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A sampling of catalysts as per customer request.
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Remove and replace manways.
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Welding repairs.
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High-temperature catalyst screening & reloading.
HEAT EXCHANGERS (BOILERS)
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High-temperature exchanger testing and plugging of tubes.
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Sulfate cleaning.
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Mechanical tube cleaning.
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Vacuum test tubes.
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Ultrasonic tube testing.
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Remove and replace manways.
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Install and expand tube sleeves.
