Waste plastic pyrolysis production relies on a sealed environment throughout. The sealing condition of the furnace body, pipelines, and joints affects stable furnace conditions, workshop cleanliness, and production safety. Gaps in the sealing structure can easily cause air backflow, oil-gas leakage, and unstable pressure, affecting the overall production process. Henan Yongle Group has comprehensively optimized the sealing system in the structural design of its plastic refining equipment, adopting a multi-layer sealing layout and sealing materials suited to high-temperature conditions, maintaining long-term sealed operation of the equipment and providing a stable foundation for pyrolysis production.

Key positions of the plastic refining equipment, such as the furnace flanges, inspection openings, feed ports, and slag discharge ports, are all equipped with multi-layer sealing structures that match the equipment's opening, closing, and operating conditions. Once closed, the equipment fits tightly, effectively preventing external air from entering the furnace, ensuring that the furnace's vacuum pyrolysis environment meets standards, and allowing the plastic cracking reaction to proceed smoothly at the preset pace.

The supporting sealing components are made of special materials suited to high temperatures and temperature differences, adapting to the equipment's repeated heating and cooling operation mode. Under normal production conditions, the sealing components remain structurally stable and are not prone to hardening, deformation, or aging, maintaining good sealing performance over the long term and reducing routine maintenance and replacement frequency.

Good sealing performance prevents oil-gas leakage, ensuring that all mixed oil-gas produced by pyrolysis enters the condensation and purification system. This keeps oil recovery volume stable, prevents oil-gas accumulation in the workshop, improves the plant's production environment, and meets the plant's standardized management requirements.

The overall sealing system has been tested and adjusted under operating conditions to suit continuous production rhythms. It maintains a tight fit even after long-term operation, without gaps or displacement caused by equipment vibration or temperature changes. Stable sealing performance effectively reduces the probability of equipment failure and downtime for maintenance, ensuring continuous production line operation.

With sound sealing protection design, the plastic refining equipment can maintain standardized and stable pyrolysis conditions over the long term, reducing interference from the external environment. Solid structural protection and a stable sealing effect provide reliable equipment support for the normalized and compliant operation of waste plastic resource recovery projects.