Thermal Analysis System Oil Sludge Centrifuge Modular Design Easy To Operate

(Thermal analysis) process

The sludge thermal-analysis system is a joint device developed by our company, involving process, design, manufacturing, trial operation, etc.

The device discharges and recovers oil and gas resources in materials by means of heating and distillation. The oil content of the residue after processing is less than 0.3%, which meets the relevant national standards;

Adjusting the system parameters can handle a variety of oily wastes such as drill cuttings, solid control cuttings, and tank bottom sludge;

Technical descriptions of the centrifuge

★ Extremely low infrastructure investment and good on-site operating environment

Compared with the conventional filter-type equipment (plate-and-frame filter, belt machine, etc.), the high-performance centrifuge is compact and efficient, covering only about a third of land, needless of auxiliary gas source, high-pressure water, and with simpler pipe structures at the inlet and outlet. Moreover, the operation environment is more humanized, and the skid-mounted integrated device has the characteristics of compact structure, convenient installation, low requirements for infrastructure, and convenient movement. The centrifuge is widely used in the harmless treatment of oily sludge in oilfield drilling.

★ Stable operation, low failure rate, and low maintenance cost

Compared with the filter type equipment, the centrifuge does not require any filter cloth or filter screen, so as to avoid the trouble of clogging and of replacing the filter cloth. The operation and maintenance costs of the equipment are low.

★ Modular design, easy to operate

Our design philosophy: To lower the requirements on the skills, educational level, and labor intensity of operators, and realize one-button start and stop of the control system, fault self-diagnosis, and safety self-protection.

★ Operator configuration and labor intensity

The high-performance centrifuge is an automatic and continuous working mode for feeding-separating-slag (liquid) discharging. The whole process requires no human intervention. Multiple sets of equipment require only one inspector (in conjunction with other positions). Unlike frame and plate-and-frame filter, the slag discharging process does not require manual cutting, greatly reducing the labor intensity of the operator.

★ Ingenious, unique, and diversified heavy liquid-phase discharging structure

The heavy liquid phase separated by the three-phase centrifuge can adopt two different liquid discharging modes, namely gravity discharging and discharging through the built-in centripetal pump with pressure, wherein the latter includes liquid layer fixed mode and the online adjustable mode of heavy phase liquid layer, which is selected according to the process conditions.

★ High performance wear-and corrosion-resistant cemented carbide

As the oily sludge contains a lot of hard particles and impurities such as sand, glass, and metal, if the centrifuge does not adopt reliable wear-resistant configuration, its service life and running stability will be seriously affected. The wear-resistant solution is completely targeted. According to the material characteristics (pH value, corrosive substance, solid particle size hardness, etc.), cemented carbide or ceramic can be selected, and the cemented carbide can be either YG6, YG8, or various modified tungsten-cobalt alloys with the hardness of 89~93 (HRA), which can fully meet the application fields of the centrifuge.

★ High performance stainless steel

The high-performance three-phase centrifuge can recover oil by 90%~95% and adapts to the liquid density difference (oil and water comparison) of the gas and oil of different densities (0.1~0.08 g/cm³). The centrifuge needs more than 3000G separation factor to achieve better separation. To ensure the stability and the service life of the centrifuge, high-strength corrosion-resistant duplex stainless steel SAF2205 is used.

★ High-dryness screw conveyor and drum structure

The dehydration of solid particles relies mainly on strong centrifugal force, high-torque screw extrusion force (pushing torque), and ultra-long solid particle dehydration length. The centrifuge can generate centrifugal force exceeding 3000G, 30 ~ 50% higher than the screw pushing torque of common centrifuges. The screw pusher torque, and the drum dehydration length is 10 ~ 20% longer than that of common centrifuges.

★ High torque involute planetary gear differential

The ultra-high pushing torque requires a high-torque involute planetary gear differential as the foundation. The differential equipped on the centrifuge features high torque, high speed, low heat generation, and excellent heat dispersion, which ensure that the centrifuge can be used for a long time and stably.

Three-phase sludge separation system (thermal analysis) process