RESONANCE SCREEN SHAKER FOR DRILLING MUD FLUID CLEANING Russian patent published in 2006 - IPC B07B1/40 B07B1/42 

FIELD: petroleum industry; natural gas industry; production of resonance screen shaker for drilling mud fluid cleaning.

SUBSTANCE: the invention is pertaining to the field of petroleum industry and natural gas industry, in particular, to resonance screen shaker for drilling mud fluid cleaning. The resonance screen shaker for drilling mud fluid cleaning consists of: a base; a fame mounted with the help of the dampers; screen plates fixed on the frame; a device of variation of a tilt angle of the frame; a feeding chute; a vibration exciter made in the form of two vibrators mounted on each side of the frame and fixed to the side pieces of the frame with the help of springs, which stiffness together with the stiffness of the dampers in a direction of a vector of the vibrations of the frame and the mass of the frame are defined by the ratio 2C + Ca·n/M = ω², where C is a stiffness of a spring, on which one vibrator is fixed, H/m; n - quantity of dampers, in pieces; M - the mass of the frame, in kg; ω - a resonance angular frequency of the frame vibrations, in radians/s. At that the windings of the vibrators are connected to the mains supply through a frequency converter made with a capability of the electric current frequency change. The technical result is an increase of the screen shaker frame vibration acceleration with a capability to adjust the vibration acceleration directly during the screen shaker operation.

EFFECT: the invention ensures an increase of the screen shaker frame vibration acceleration with a capability to adjust the vibration acceleration directly during the screen shaker operation.

2 dwg, 2 ex