Batch-type Waste Tire Pyrolysis Separator Drum

Batch-type Waste Tire Pyrolysis Separator Drum

Adaptability to Batch Process

Batch treatment feature: The batch-type waste tire pyrolysis process adopts a batch operation mode. A certain amount of waste tires is first loaded into the pyrolysis furnace; after the heating reaction is completed and the system is cooled down, the products are discharged before starting the next batch of operation. The separator drum needs to adapt to such periodic material input and effectively separate the oil-gas products during each batch of pyrolysis.

Temperature and pressure fluctuation: During batch production, the temperature inside the furnace varies greatly during the heating-up, pyrolysis and cooling stages, which leads to fluctuations in the output and properties of oil and gas. The separator drum should be able to stably perform heavy oil separation and gas buffering under such temperature and pressure fluctuations, ensuring that the subsequent processes are not affected.

Working Process

During the batch-type pyrolysis process, waste tires are heated in the pyrolysis furnace to generate high-temperature oil and gas. When the temperature of the drum reaches about 180℃, the oil and gas enters the separator drum through pipelines. Inside the separator drum, heavy oil sinks to the bottom due to gravity and is then transported to the heavy oil storage tank by an oil pump for storage. The remaining light oil vapor, pyrolysis gas, water vapor and other components continue to flow through pipelines into the subsequent cooling system, where light oil vapor and water vapor condense into liquid and are separated from the pyrolysis gas.

Structural Characteristics

Material and pressure resistance: The separator drum is usually welded with steel plates and has good pressure and high-temperature resistance to withstand the pressure and temperature of high-temperature oil and gas generated during pyrolysis. Generally, it can bear a pressure of 0.5–1.0 MPa and withstand a high temperature of 200–300℃.

Internal structure: To enhance the separation effect, components such as baffles and wire meshes may be installed inside the separator drum. Baffles can change the flow path of oil and gas, increase the residence time of oil and gas in the separator drum, and facilitate the better sedimentation of heavy oil. Wire meshes can further capture tiny oil droplets in the oil and gas, improving the separation efficiency.

Interface configuration: The separator drum is equipped with multiple interfaces, including a gas inlet connected to the gas outlet pipeline of the pyrolysis furnace, an interface for the heavy oil discharge pipeline, an interface for the gaseous component output pipeline, as well as interfaces for measuring instruments such as pressure gauges, thermometers and liquid level gauges, which are used to monitor and control the pressure, temperature, liquid level and other parameters inside the separator drum.

Maintenance Key Points

Regular cleaning: As heavy oil and impurities will deposit inside the separator drum, it is necessary to regularly open the blowdown valve at the bottom to discharge the deposited heavy oil and impurities, preventing excessive accumulation from affecting the separation effect and equipment operation.

Instrument inspection: The pressure gauges, thermometers and other measuring instruments on the separator drum should be calibrated and inspected regularly to ensure accurate measurement, so as to timely grasp the operation parameters inside the separator drum and guarantee the safe and stable operation of the equipment.

Sealing inspection: Temperature and pressure fluctuations during batch production are prone to cause aging and damage of the seals of the separator drum. It is necessary to regularly check the sealing condition of the separator drum and replace damaged gaskets and other components in a timely manner to prevent oil and gas leakage.