The thermal washing separation technology and thermal desorption technology integration form an overall solution for oily sludge. The thermal washing separation process section is used as the pretreatment to reduce the oil content and achieve the reduction treatment. The treated solid items enter into the thermal desorption process section to achieve the detoxification treatment. According to different material characteristics, the thermal washing separation and thermal desorption process sections can also operate independently.

At a certain temperature, mechanical stirring, tempering, centrifugation and other methods are adopted to promote the three-phase separation of oil, mud and water under the action of chemical agents. The system can adopt multi-stage separation design to improve the treatment effect, and can also optimize the equipment and treatment process according to the material composition properties to achieve the best treatment effect.

Technical advantages

Wide processing range

Various kinds of petroleum sludge without special requirements for oil and water content of materials.

Good treatment effect

The oil content of solid residue reaches 2%, and the effect of multi-stage washing is higher.

Pretreatment module for detoxification

pyrolysis treatment.

Low processing cost and resource recovery.

Highly automated, water and chemicals are recycled, and multi-level oil collection.