pulverised coal injection plant fire in slovakia

Pressurised pulverised coal combustion PPCC is another coalfired combined cycle concept which is able to achieve efficiencies in excess of 50 97Han A schematic flow diagram is given in Fig II194 Combustion of pulverised coal takes place at temperatures of about 1600 °C under a

Oct 04 2018 · Coal explosibility affects the safety during the injection of coal in the BF Reactivity – The reactivity of coal refers to reacting ability of coal with carbon dioxide CO2 or water vapour H2O under certain conditions After pulverized coal injection in the BFe part of the unburned coal char reacts with CO2 while ascending with the gas

Pulverised coal injection PCI is a well established technology It is practised in most if not all countries with cokebased BFs and new BFs are nearly always fitted with PCI capability Waste plastics injection WPI is less Injection of coal and waste plastics in blast furnaces 5 commonly carried out with only a few ironmaking plants in

PCI plant Coal injection system Reduced pollution Coal grinding and injection systems are nonpolluting systems Injecting pulverized coal into a blast furnace reduces the overall pollution made by coke production Increased productivity Installation of a coal injection system can increase productivity through improved operation of the blast

The most common heat transfer method for coalfired boilers is the watertube method in which the hot combustion gases contact the outside of the heat transfer tubes while the boiler water and steam are contained within the tubes Coalfired watertube boilers include pulverized coal cyclone stoker fluidized bed and handfed units

May 10 2013 · Fig 1 Typical flow sheet of pulverized coal injection in blast furnace The process of coal injection The PCI process is based on the simple concept of carrying the finely ground pulverized dried coal by a conveying gas normally nitrogen to the BF where it is distributed to different tuyeres and injected through a lance in the blow pipe

Purchase Advanced Pulverized Coal Injection Technology and Blast Furnace Operation 1st Edition Print Book EBook ISBN 9780080436517 9780080546353

Pulverized Coal Boiler A pulverized coal boiler has capacity 130 th furnace water wall area A 4795 m2 calculated fuel consumption Bcal 4437 kgs and amount of heat transfer in furnace for 1 kg fuel burnt Qr 12246 kJkg

Pulverized Coal Injection PCI System for Blast Furnaces In the past reactions within the blast furnace were stimulated by injecting heavy oil as auxiliary fuel along with the blasts and oxygen The heavy oil was replaced by pulverized coal after the oil crisis This made it possible to use cheap coal such as noncoking coal

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