The time required for fully continuous tyre pyrolysis plant varies depending on factors such as equipment, process, and processing volume. Mingjie Group offers two models of continuous pyrolysis plants: MLL-20T and MLL-30T. One fully continuous pyrolysis plant can process 35-40 tons of waste tires per day.
Time Spent on each Process of Fully Continuous Tyre Pyrolysis Plant
Crushing system: The waste tires are crushed into small pieces and magnetically separated to remove most of the steel wire. This process is relatively short, typically taking about 1-2 hours, depending on the crushing equipment's processing capacity and the tire's initial condition.
Continuous pyrolysis system: Tire rubber powder is continuously fed into the pyrolysis reactor via automatic feeder. The pyrolysis reaction occurs under a slight negative pressure at a temperature of approximately 440°C. This process typically takes 4-6 hours to ensure complete tire pyrolysis, converting rubber and other substances into products such as pyrolysis oil, carbon black, and combustible gas.
Heating system: The pyrolysis reactor uses indirect heating. The material is pyrolyzed in the inner drum of the pyrolysis reactor, while the outer drum uses high-temperature flue gas as a heat source to provide heat. The heating system varies during pyrolysis equipment startup and full operation. During startup, natural gas or other heating media is required for 1-2 hours to reach a stable temperature. During operation, synthesis gas is used to continuously provide heat for the tyre waste recycling pyrolysis process.
Oil-Gas Separation System: After cooling and separation, the oil and gas discharged from the continuous pyrolysis plant enter the oil collection tank and are pumped to the tank farm via an oil pump. Non-condensable combustible gas enters the combustible gas purification system. This process typically takes 1-2 hours to complete the cooling and separation of the oil and gas.
Combustible Gas Purification and Transportation System: The syngas is purified in the combustible gas purification system, and then is conveyed through a water-sealed tank to a surge tank. The purification process typically takes 1-2 hours to ensure the quality and stability of the combustible gas.
Discharge System: Tire pyrolysis carbon black is water-cooled and then conveyed to a carbon black collection bin. The discharge process typically takes 1-2 hours, depending on the efficiency and processing capacity of the discharge equipment.
Carbon Black Processing System: Carbon black processing involves magnetic separation, grinding, drying, and packaging the crude carbon black obtained from continuous tyre pyrolysis plant. The carbon black processing line is a fully enclosed system. This process is lengthy, typically taking 4-6 hours, depending on the amount of carbon black processed and the processing technology.
Flue Gas Purification System: After cooling, the recycled waste gas enters the flue gas purification tower, where it undergoes multi-stage purification before meeting emission standards. The flue gas purification process typically takes 1-2 hours to ensure that the flue gas meets emission standards.
