Abstract: Calcined coke dust is flammable. Carbon factories for electrolytic aluminum require explosion-proof and energy-saving grinding equipment. This article compares strengths of MTW and PMD mills applied in petroleum coke processing.
Petroleum coke turns into calcined coke after calcination, the core carbon raw material for prebaked anodes of electrolytic aluminum. Powder particle size and purity directly affect anode quality. Petroleum coke dust is combustible. Grinding equipment must equip full explosion-proof protection. Continuous production of carbon factories makes equipment energy consumption a key factor of production cost.
Medium & small carbon projects with annual output of 100,000–300,000 tons prefer SBM MTW European Trapezium Grinding Mill. The machine equips anti-static air duct and flame-proof motor. Full oil lubrication ensures stable 24-hour running. Hourly capacity 3–45 tons meets demand of medium-small carbon workshops with moderate equipment purchase cost and easy maintenance.
Large calcined coke production lines supporting electrolytic aluminum projects with annual output above 500,000 tons recommend PMD Permanent Magnet Direct Drive European Mill. Permanent magnet motor saves power by 20%–30%. Multiple early warning explosion-proof devices are equipped. Large models reach 55 tons hourly. Multiple production lines can operate in parallel for super-large carbon industrial parks and bring prominent long-term electricity savings.
Both machines adopt sealed negative-pressure circulation dust removal. Finished calcined coke powder is free of impurities. Adjustable size 200–325 mesh fully meets raw material standards of prebaked anode. Complete petroleum coke line consists of crusher, sealed silo, explosion-proof grinding mill, spark detection dust collector and sealed jumbo bag packing. SBM owns hundreds of carbon industry project cases and provides explosion-proof process design supporting safety inspection acceptance.
If you plan calcined coke grinding workshop for carbon factory and hesitate between MTW and PMD according to production scale, send annual output and workshop conditions via online consultation. Our engineers recommend optimal models and share field videos of running carbon plants.
Summary: Medium & small carbon plants choose MTW European mill. Large electrolytic aluminum projects adopt PMD permanent magnet direct drive explosion-proof mill. Both models support low-energy explosion-proof processing of petroleum coke and calcined coke.
FAQ
Q: Must explosion-proof mill be used for petroleum coke processing?
A: Yes. Petroleum coke dust belongs to combustible dust. Ordinary grinding machines contain explosion hidden dangers.
Q: Which mill fits petroleum coke processing for medium & small carbon factories?
A: MTW European explosion-proof mill is recommended with low procurement cost and easy maintenance for medium-small capacity.
Q: What mesh size of calcined coke is commonly required?
A: 200–325 mesh calcined coke powder is widely used for prebaked anode of electrolytic aluminum.
