Case Studies
Project Cases Overview
Delivery of Slepp Activation Furnace Project for a Coal-Based Activated Carbon Plant
Activated Carbon ProductionA coal-based activated carbon plant expanded activation capacity with a Slepp activation furnace. The company delivered a vertical Slepp activation furnace with steam, temperature control and exhaust gas systems. Product iodine value is stable, single-furnace capacity is high and automation is reliable, passing acceptance on first trial.
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Low-Ash Wood-Based Activated Carbon Activation Line Revamp, Food Decolorization Client
Activated Carbon ProductionA food and pharmaceutical decolorizing activated carbon producer upgraded to a 600 t/a low-ash wood-based continuous activation line. Songrui assessed the old line, replaced the Slep furnace with a rotary activation furnace and revamped off-gas and heat recovery; ash 2.2-2.8%, caramel decolorizing rate 91-94%, energy about 18% lower, acceptance passed.
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Integrated Briquette Carbonization-Activation Line for Columnar Activated Carbon, Water Purification Client
Activated Carbon ProductionA water-purification materials producer built a new 2000 t/a integrated columnar activated carbon line. Songrui delivered briquetting, carbonization, rotary activation, screening and packaging equipment; stable yield, pellet strength 96-97%, iodine value 930-1010 mg/g, meeting drinking-water-grade carbon requirements.
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Waste Activated Carbon Thermal Regeneration System for a Water-Treatment Enterprise
Activated Carbon ProductionA water-treatment enterprise regenerates saturated activated carbon on site to cut carbon procurement and meet regeneration regulations. Songrui delivered a continuous thermal regeneration furnace with off-gas incineration and alkali washing; iodine value recovery 88-92%, regeneration yield 93%, performance meets reuse requirements.
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3000 t/a Rotary Activation Furnace New Build for a Coconut-Shell Activated Carbon Plant
Activated Carbon ProductionA coconut-shell activated carbon producer built a new 3000 t/a rotary activation furnace line. Songrui delivered an HRS rotary activation furnace with off-gas treatment; continuous stable operation, product iodine value 980-1050 mg/g, unit energy consumption about 15% lower than conventional Slep furnaces, acceptance passed.
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Slep Furnace Overhaul for Shell-based Activated Carbon Plant
Activated Carbon ProductionTwo Slep furnaces suffered burned-out activation-zone refractories; rebuilt with self-produced saddle bricks, raising capacity by about 15%.
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5000t/a New Coal-based Activated Carbon Plant
Activated Carbon ProductionThe client built a new 5000t/a coal-based activated carbon plant using local weakly-caking coal. We delivered an internal-heated rotary carbonization
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