How is the operation priciple about Kosun vertical cuttings dryer?

Vertical cuttings dryer is an ideal equipment for oil recovery and cuttings disposal for oil based drilling cuttings and synthetic-based mud. It works together with decanter centrifuge in a drill cuttings treatment system.

KOSUN new designed drill cuttings management system includes the equipments below:

One set Decanter Centrifuge, high speed & variable speed (0-3200rpm);
One set Cuttings Dryer, fixed speed (800rpm), with air line, upgrade scraper and basket screen;
One set Vertical slurry pump for feeding Decanter Centrifuge;
One set pump for flushing cuttings dryer.

Achieving Results

Typical linear motion shaker cuttings maintain a liquid content on average between 12% to 16%. When properly managed, KOSUN’s VCD can lower the liquid content below 5%. This can be done while managing 40 tons (36,000 kilograms) per hour of drilling cuttings.

Operation

KOSUN’s rugged, continuous VCD is fed via screw conveyor, vacuum system, or rotary-lobesolids pump from the flow-line shakers. Drill cuttings are fed into the hopper, and distributed along the inner wall of the screen with the aid of the rotor. The liquid phase, or “filtrate”, passes through the screen openings while the vertical scraper with sintered tungsten carbide tiles scrape the accumulating cake solids towards the bottom of the VCD for disposal. The filtrate gravity flows into a containment tank and pumped to a high speed decanter centrifuge. Upon discharge, the dried cuttings are then safely discharged to the environment, are collected for further treatment or off-site disposal. KOSUN’s VCD significantly improves liquid phase recovery, thereby paying for itself.

The Kosun VERTI-G cuttings dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. A stainless steel screen bowl traps “wet” solids and accelerates them up 890 RPM. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl, which is crucial for proper operation. Kosun solid control cuttings dryer has been done strict balance testing for all major rotary components to minimize vibration & noisy.