Compliant operation of waste plastic pyrolysis production focuses on the standardized control of workshop waste gas and material flue gas. Effective fugitive emission control is the foundation for a plant to pass environmental inspections and maintain stable production. Open production easily causes flue gas overflow and odor diffusion, affecting the plant environment and surrounding areas. Relying on the negative pressure sealed production process, gas flow can be regulated at the production source and the environmental attributes of production can be enhanced. In the process design of its plastic refining equipment, Henan Yongle Group adopts a fully sealed negative pressure production mode, standardizing the entire pyrolysis gas treatment process and meeting the normalized environmental control standards of various regions.

The plastic refining equipment adopts a fully enclosed furnace body design; the entire process of feeding, pyrolysis, gas generation and slag discharge is completed inside a sealed chamber with no open operation steps. Oil-gas, flue gas and trace mixed gases generated during production do not leak out directly; all of them enter the backend treatment system, effectively preventing fugitive emissions.

The equipment maintains a negative pressure state throughout operation; the pressure inside the furnace is lower than the external ambient pressure, so even if the equipment has fine gaps, external air only flows inward and oil-gas or flue gas cannot escape. The stable negative pressure environment continuously keeps the workshop air clean and reduces the accumulation of production odors.

The negative pressure drives oil-gas transmission at a uniform speed, letting the mixed oil-gas produced by pyrolysis flow along a fixed path to the condensation and purification units with orderly process connections. A stable gas transmission rhythm not only optimizes environmental performance but also makes the pyrolysis reaction environment more stable, helping materials crack fully.

The entire negative pressure sealed system starts and stops synchronously with the main equipment, without separate manual operation. The equipment automatically establishes negative pressure conditions at startup and balances the pressure with a delay after shutdown, ensuring that every production round takes place in a standardized sealed environment and fitting long-term continuous production modes.

A mature negative pressure sealed production process makes the production flow of the plastic refining equipment more standardized and compliant, solving common problems such as flue gas overflow and workshop odor at the source. Stable environmental conditions lay a solid foundation for the normalized and compliant operation of waste plastic resource recovery projects.