1,Physical separation, no secondary pollution.
Adopts steam efficient heating separation technology, utilizes the ejection effect generated by high-speed steam, to carry on the total heat exchange, as well as the high-speed steam spirals up in the shell and forms the rotating water vapor,which has the function of absorbing steam and eliminating the noise.
The assistant microbial surfactants are far better than other alkaline cleaning agents in oil removal effect, can better carry out surface infiltration and enhance the ability of microorganisms degrading pollutants.
The whole process is physical separation, no harmful chemicals added, the production process is friendly to the environment.
2,The variety of materials processed.
Oil waste includes following four categories:
oil sludge from cleaning tank : high crude oil content, up to more than 10%
Ground sludge: complex materials, in addition to oil, mud and sand, there are plastic color strip cloth, woven bags, plastic bottles, cotton yarn, weeds and other soft impurities, and bricks, stones, iron, screws and other hard impurities, wood rod, asbestos plate and other unshaped impurities).
Mixed sludge: A mixture of above two sludge. Sludge thermal chemical cleaning treatment device can handle all above sludges ; Compared with other processing technology, it can handle wider range of materials.
Oil based cuttings.
3,Large processing capacity, stable processing index
A single unit system’s Max.capacity can be up to 240T/D, its capacity can be expanded more higher according to corresponding equipment.
After the treatment, the oil content of the solid phase can be much lower than the existing standard requirements of less than 2%.
4,The equipment is easy to be installed and stable in operation
The whole system adopts skid-mounted design and industrialized manufacturing, which can realize integration, modularization, quick and convenient installation.
With mature manufacturing technology , through optimizing standard parts, to achieve safe, stable, efficient production and operation.
5,The treatment index can be adjusted according to the condition of oil sludge and the requirements of users.
6,oil sludge that is difficult to be handled 0.3% -----Material can be processed to lower 10% of oil content as required,then processed harmlessly to 0.3% oil contenct
Oil sludge that is difficult to be handled 2 % -----Material can be processed to lower 2% of oil content as required, then carried on reduction treatment
Oil sludge that is easy to be handled 0.3%------ Carry on thermal washing operation directly to standard emission index 0.3%
Technical composition and index controlled of oil sludge thermal washing treatment process:
| No. | Unit name | Requirement | index controlled |
| 1 | crushing unit | The material sludge pond is sheared and broken，and preliminary sieved and fluidized，to meet the requirements of material further crushing treatment. | Particle size of discharged material: 40X60mm approximately Requirement of fed material :A small amount of iron and stone |
| 2 | Homogeneous fluidization unit | The material is heated by a heating device ; The materials are homogenized and fluidized through a mixing system; The oil, slag and silt will be separated by adding agents to clean the oil contamination | heating temperature: >90°C capacity:10~15m³/h Fluidization time: 40~ 60min |
| 3 | Sieving unit | Through the drum sieve to achieve BBB 0 5mm diameter of large particles of impurity separation Separate sand and stone by spiral conveyor Separate 0.4mm ~ 5mm filamentous fragments by shale shaker | heat tracing temperature: >80°C capacity: 10~15m³/h Sand& stone sieved:3~5m³/h Sand& stone sieved: 3~ m³/h residue: 3~5m³/h |
| 4 | Separation unit | Achieve preliminary separation of oi, water and mud from front-end materials by decanter screw centrifuge | capacity:10~15m³/h oil content of water: <2% Oil output: 3~5 m³/h oil content of mud : <3% |
| 5 | Collecting oil unit | Recovery oil phase from liquid by centrifuge | capacity:5~10m³/h oil content of water: <2% |
| 6 | Collecting mud unit | Clean the silt discharged from front-end material by decanter centrifuge to reach the standard requirements of the silt collection | capacity:5~10m³/h oil content of water: <1% oil content of mud: ≤2% |
Discharged material index
| Constituent content of material discharged,% | Impurity ( Non-sand or mud） | partical size of sand ≥0.5mm | partical size of sludge ≤0.5mm | sump oil | waste water |
| oil | ＜0.3~2 | ≤0.3~2（bonedry） | ≤0.3~2（bonedry） | ＞55 | oil＜300mg/L SS＜500mg/L |
| water | ＜50 | ＜50 | ＜65 | ＜40 | PH;6~9 |
| solids | ＞40 | ＞48 | ＞33 | ＜5 |
| others | sand＜10% |
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| standard |
| SY/T7301 | SY/T7301 |
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Technical specification for treatment and pollution control of oil sludge in onshore oil and gas exploitation.
Technical requirements for comprehensive utilization and pollution control of oil sludge in onshore oil and gas exploitation
Capacity index:
Min.unit designed: 1 ton/hour 3 ton/hour 5 ton/hour 10 ton/hour
Above treatment units can be combined freely to achieve a large capacity treatment
1 ton/hour 3 ton/hour 5 ton/hour
10 ton/hour
