HYDROCYCLON OF THREE COMPONENTS Russian patent published in 1995 - IPC

FIELD: cleaning up drilling mud and oil-field waste water. SUBSTANCE: hydrocyclon of three components has cylindrical/cone body 1 with tangential inlet branch pipe 2 and outlet branch pipes for oil, water and slurry 3 - 5. Oil outlet branch pipe 3 is multi-part. Lower part 6 of oil outlet branch pipe 3 is made in the form of solid rod, and its upper part 9 is perforated with rectangular tangential openings. Diameter of upper branch pipe part located within bounds of cylindrical section of hydrocyclon body is larger than diameter of its lower part located within conical section bounds of the body by a magnitude twice a thickness of oil flow revolving around solid rod. Moreover, a centering guide able to revolve easily is installed to remove oil in lower part of branch pipe in its fastening points to decrease vibration of the branch pipe and eliminate breaks. EFFECT: drilling mud and oil-field waste water of high purity. 2 cl, 2 dwg