Common Safety Hazards During the Operation of Tire Pyrolysis Equipment

Common Safety Hazards During the Operation of Tire Pyrolysis Equipment

I. Equipment Sealing and Pressure-bearing Hazards

Aging or damage to the seals of furnace bodies, pipelines, flanges and valves leads to leakage of flammable oil and gas as well as toxic pyrolysis gas, which is likely to cause deflagration and personnel poisoning.

Failure or uncalibrated safety instruments such as pressure gauges and safety valves result in failure to release pressure in time when the furnace is overpressurized, triggering bulging or bursting of equipment.

Long-term high-temperature operation of equipment causes furnace body deformation and pipeline cracking, leading to medium leakage and the risk of thermal burns.

II. High-temperature and Deflagration Hazards

Excessively fast heating rate and uneven raw material distribution cause local overheating inside the furnace, leading to coking, deflagration, or ignition of flammable impurities in raw materials.

Direct reuse of unpurified non-condensable gas and absence of flame arresters on pipelines result in backfire and deflagration; oil and gas accumulate in confined spaces to form explosive gas mixtures.

Unauthorized open fire around the equipment, or operators carrying fire sources/using non-explosion-proof electrical appliances, ignites the leaked oil and gas.

III. Material and Operational Hazards

Failure to remove hard impurities such as metals and gravel from waste tires causes equipment damage due to impact during operation; mixing in flammable, explosive or corrosive materials triggers abnormal reactions.

Operators not wearing anti-static protective gear cause human static electricity to ignite oil and gas; unauthorized operations such as knocking and welding during equipment operation.

Excessively high moisture content in raw materials generates a large amount of steam during heating, leading to a sudden pressure rise in the furnace, or causing oil stratification and incomplete combustion.

IV. System Supporting and Maintenance Hazards

Malfunctions of the cooling system (water cut-off, fan shutdown) result in failure to effectively cool oil products and equipment, triggering oil and gas volatilization and equipment overheating.

Failure to cool down in accordance with regulations (furnace temperature ＞60℃) and perform ventilation replacement during slag removal/overhaul leads to oxygen deficiency and toxic gas poisoning when entering the furnace; failure to cut off the power supply causes misstart.

Damaged insulation layers and unprotected high-temperature pipelines cause thermal burns to personnel, and at the same time aggravate heat loss and trigger abnormal local temperature of equipment.

V. Emergency Supporting Hazards

Expired, missing or inoperable fire protection facilities (foam/dry powder fire extinguishers, fire sprinkler systems) result in failure to put out initial fires in a timely manner.

Malfunctions of flammable gas alarms and ventilation systems make it impossible to detect and discharge leaked oil and gas in a timely manner, forming deflagration hazards.

Absence of emergency evacuation channels and unclear warning signs on site make it impossible for personnel to evacuate quickly in the event of an emergency.