Five Steps for Operating Scrap Tire Disposal Equipment
Water Removal in the Oil Refining Process
Collect waste engine oil in an oil sump for water removal, then transfer it into the refining kettle. Heat the oil to 70–80℃ and stop heating. Allow it to stand still for about 24 hours, then drain all surface free water completely. After that, slowly heat the oil up to 120℃ (when the oil temperature approaches 100℃, heat gradually to prevent boiling and overflowing) to evaporate residual moisture. This process takes approximately two hours, and you can stop when the oil stops churning and black oil gas emerges from the surface.
Acid Washing in the Oil Refining Process
Let the oil cool down to room temperature, then slowly add sulfuric acid (with a concentration of about 92–98%) while stirring. The dosage of sulfuric acid is generally 5–7% of the oil volume, depending on the contamination level of the waste engine oil. Continue stirring for half an hour after adding all the acid, then let the mixture stand for about 12 hours before draining all acid sludge completely.
Detailed Technical Process of Scrap Tire Disposal Equipment
First, collect a large quantity of scrap tires. Sort and feed them into the pyrolysis reactor of the scrap tire disposal equipment via an automatic feeder, then hermetically seal the feed inlet of the equipment. Once all these preparations are completed, ignite and heat the reactor of the scrap tire pyrolysis equipment. Under high-temperature conditions, the scrap tires undergo pyrolysis and turn into oil gas. The oil gas first passes through a buffer tank and then enters the three-stage condensation process, which consists of a vertical shell-and-tube condenser, a horizontal condenser, and a condensation tower. After cooling in the three-stage condensation system, the oil gas is converted into fuel oil. The non-condensable flammable gas can be directly used to heat the pyrolysis reactor of the equipment, and the excess tail gas can also be collected and stored for other industrial heating applications.
Significance of the Scrap Tire Pyrolysis Technology
The scrap tire pyrolysis technology plays a vital role in the disposal of scrap tires. Through the above detailed technical process, high-value products are obtained, including pyrolysis oil, carbon black, and steel wire, all of which have corresponding practical applications.
The Entire Processing Procedure
Put scrap tires into a high-temperature and normal-pressure pyrolysis reactor. Add a catalyst and heat the tires to conduct catalytic pyrolysis and purification extraction, which vaporizes the oil components. The vaporized oil is condensed into mixed oil, which is then further purified into primary diesel oil through sedimentation, filtration, and chemical treatment.
Regular Inspection and Adjustment of Scrap Tire Disposal Equipment
Use qualified softened water to avoid scale buildup in water channels and ensure heat dissipation efficiency.
Clean the cooling fins regularly to remove dust, sand, and other substances that affect heat dissipation.
Check the water level in the water tank of the waste engine oil refining equipment regularly to ensure sufficient water volume.
Inspect the operation status of the water pump to ensure the circulating water volume meets the required standard.
Check the fan regularly and adjust the tightness of the fan belt.
Adjust the valve clearance to a proper level suitable for high-temperature operation to prevent excessive temperature rise.
Adjust the viscosity of the lubricating oil used in the equipment.
Reduce corrosion caused by high-temperature sulfur and acids by blending high-acid-value oil with low-acid-value oil for refining, so as to lower the acid value of the crude oil to below 0.5 mgKOH/g.
