In the field of industrial waste resource utilization, equipment for treating oil-containing waste residues is reshaping traditional sludge disposal methods through the synergistic effects of pyrolysis carbonization and energy recovery. This equipment centers around a "dewatering-pyrolysis-recycling" core process chain, transforming oil-containing sludge into economically valuable biochar fertilizer while achieving energy self-circulation and zero additional pollution, thus providing technological support for green production.

During the initial operation of the equipment, the oil-containing sludge is quantitatively transported to a vacuum centrifugal drying dewatering machine via a slurry pump. Under the dual action of centrifugal force and hot air, the moisture content of the material is reduced from 80% to below 25%, forming uniform dried granules. This stage employs a variable frequency control system that can automatically adjust the speed and temperature according to the sludge viscosity, preventing material caking or excessive drying. The dehydrated granules then enter the anoxic pyrolysis carbonization device, where long-chain hydrocarbon substances are cracked into small molecular combustible gases in an oxygen-free environment at 550-650°C. The solid residues are transformed into biochar with a rich microporous structure.

The resource utilization of pyrolysis gas is a standout feature of this equipment. After the mixed gas is separated by an oil separator, the combustible gas is purified through desulfurization and dehydration processes to become a supplementary fuel for the heating system. Measurements indicate that approximately 120 cubic meters of combustible gas can be recovered for every ton of oil-containing waste residue treated, which is equivalent to saving 25 kilograms of standard coal. The biochar produced during the pyrolysis carbonization stage is cooled, screened, and then enters an automatic batching system, where it is mixed with nutrients such as nitrogen, phosphorus, and potassium in proportion, ultimately forming evenly granulated biochar fertilizer. This fertilizer not only improves soil structure but also releases nutrients slowly, showing great potential for application in ecological agriculture.

The energy efficiency optimization design runs throughout the entire process chain. The high-temperature flue gas from the pyrolysis stage recovers thermal energy through a waste heat boiler, providing over 60% of the heat source for the drying unit. The heating system uses a dual combustion chamber structure, enhancing fuel combustion efficiency to 92%. In terms of environmental protection, the flue gas purification system integrates bag filtration, alkaline liquid spraying, and photocatalytic oxidation technology, ensuring that dust emission concentrations are below 10 mg/m³ and that the removal rate of benzene compounds reaches 98%, all while avoiding secondary pollution risks.

From a future technical application perspective, such oil-containing waste residue treatment equipment has been validated in multiple industrial scenarios, demonstrating its stability and adaptability. The automated control system monitors key parameters such as material moisture content and pyrolysis temperature in real time, ensuring the stability of treatment efficiency and product quality. As the market demand for biochar fertilizer continues to grow, this treatment technology, which combines environmental benefits with resource conversion capabilities, is playing a significant role in exploring sustainable development paths for the industrial sector.

Yongle Environmental Protection is mainly engaged in the research and development, production and sales of complete sets of technical equipment for organic solid waste disposal and comprehensive utilization. Production and manufacturing, domestic waste treatment equipment, tire pyrolysis equipment, medical waste disposal equipment, hazardous waste disposal equipment, and achieve efficient and comprehensive utilization of resources through independently developed low-temperature anaerobic pyrolysis equipment technology solutions.

Tags：Sludge pyrolysis technology promotes the efficient production of biochar fertilizer,Oil sludge treatment equipment,YONGLE GROUP