OilField Drilling Rig Solid Control System Balance Elliptical Shale
Shaker
General Description:
Drilling-fluid vibrating screen is applicable to solid control
system of drilling fluid of petroleum and natural gas exploration
and it is the first stage equipment for solid-liquid separation of
drilling fluid.
ZS/T-1C series elliptical vibrating screen for solid phase
separation of drilling fluid adopts 2 sets of vibration motor to
realize elliptical movement of screen box along designed direction
so as to screen out and discharge granular drilling cuttings in
drilling fluid.
ZS/T-1C series vibrating screen includes type ZS/T-1C
translational-motion elliptical vibrating screen, type ZS/T2-1C
translational-motion elliptical 2-in-1 vibrating screen and type
ZS/T3-1C translational-motion elliptical 3-in-1 vibrating screen.
II. Technical parameter
1. Technical parameter per unit
Model: ZS/T-1C
Motor power: 1.65kW+1.0kW
Shaking path: balanced elliptical
Screen specification: 4-1150×760mm with hooked edge
Scope of dip angle: ± 3°
Vibration intensity: Maximum 7G
Excitation rev: 1500 r/min
Vibration frequency: 25Hz
Power supply: AC380V,50Hz
Outer dimensions: 3070×1730×1515 mm
Total mass: 2200kg
2. Application environmental conditions
Ambient temperature: -20℃～+40℃
Relative humidity of ambient air: Not exceeding 95%
Explosion-protection class: Ex d ⅡB T4 Gb
Corrosive environment: Free of metal-corrosive and
insulation-corrosive gas or steam
Electrical protection grade: IP55
III. Safe operation rules
1. Installation
A. Appropriate hoisting equipment and lifting appliance shall be
used;
B. Hoisting equipment outside of designated lifting points is
strictly prohibited;
C. Soundness of installation platform shall be confirmed for
sufficient bearing capacity;
D. The equipment shall be installed steadily and fixed reliably on
tank.
2. Operation
A. Anchor blocks of screen box shall be confirmed having been
removed and fixed in reverse direction prior to startup;
B. Touching screen box and springs during operation process of the
equipment is strictly prohibited;
C. If abnormal noise or vibration is found after startup, the
equipment shall be stopped immediately for trouble shooting;
D. Main power supply shall be cut off after shutdown.
3. Maintenance
A. Control box shall not be opened before main power supply is cut
off;
B. Adjusting eccentric blocks of vibration motor is strictly
prohibited;
C. Drilling holes and carrying out welding on screen box are
strictly prohibited.
IV. Structural composition and overall dimensions
ZS/T-1C series elliptical vibrating screen consists of 5 main
parts, i.e. base frame, screen box, mud box, dip angle adjusting
device and electrical control system.
Screen box is linked on base frame by rubber spring, thus forming a
typical “spring-mass” vibration system.
2-in-1 and 3-in-1 vibrating screen are formed by combining 2 sets
or 3 sets of vibrating screen together to share a common base frame
and a mud box for convenience of installation and transportation.
Overall dimensions of the equipment are shown in Fig.1, 2 and 3.
Explosive view of a single unit is shown in Fig.4. Explosive view
of screen box is shown in Fig.5 and explosive view of dip-angle
adjustment mechanism is shown in Fig.6 and 7. Explosive view of
splash-proof cover plate is shown in Fig.8. Explosive view of
2-in-1 and 3-in-1 vibrating screen is shown in Fig. 9 and 10,
respectively.
V. Operation principles
ZS/T-1C series elliptical vibrating screen is of a twin-shaft self-synchronizing inertia elliptical
vibrating screen with unequal mass-radius product. Two sets of
vibration motor with unequal mass-radius product are installed
horizontally and rotate in reverse direction. According to
self-synchronizing theory, rotational movement of the two sets of
vibration motor will follow each other and synchronized reverse
rotation can be realized in a short time if certain conditions are
met.
According to force center theory and coincidence with each other
the center of force of vibration exciter and center of mass of
vibration participants, excitation force will bring the entire
screen box to make vibration movement that has cyclic variation and
elliptical trail. Each and every point of screen box vibrates with
identical direction and intensity.
