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Oil Drilling Solid Control Solid Liquid Separation Screw Decanter
Centrifuge
LW serial decanter centrifuge has been granted 7 patents including
a flow controller for adjusting and controlling the feed quantity
of the centrifuge (ZL200720079860.4) and a main bearing seat of the
decanter centrifuge used for drilling fluid-solid-phase control
system (ZL200720080219.2).
Parameter Table:
Technical spec. | Unit | Rate freq. | Variable freq. | ||||
N1 | N2 | N3 | |||||
Inner diameter of bowl | mm | 450 | |||||
Active length of bowl | mm | 1000 | |||||
Max. rotation speed of bowl | r/min | 2500 | |||||
Active rotation of bowl | r/min | 1800 | 2000 | 2200 | ≤2200 | ||
G-force | 815 | 1007 | 1219 | ≤1219 | |||
Differential speed of conveyor | r/min | 17-36 | ≤44 | ||||
Max. throughput (SG<1.1) | m3/h | 40 | 45-50 | 50-60 | |||
Main motor | Model | YB200L-4 | YB225S-4 | ||||
Rated power | kW | 30 | 37 | ||||
Rated speed | r/min | 1470 | 1480 | ||||
Accessorial motor | Model | YB160M-6 | |||||
Rated power | kW | 7.5 | |||||
Rated speed | r/min | 970 | |||||
Feed pump model | Centrifugal pump LSB23J, SB23J | ||||||
Dimension | l | mm | 2750 | ||||
w | 1580 | ||||||
h | 1720 | 1780 | |||||
Weightincluding the feed pump | kg | 3400 | 3500 | 4000 |
LW serial decanter centrifuge has two control models of variable
frequency and work frequency, and has abovementioned various
decanter centrifuges devoted for ocean drilling platforms. The work
frequency-driven decanter centrifuge can change its speed through
pulley and belt change, and the variable frequency horizontal
centrifuge can realize infinite speed variation in a large scope
and its control cabinet can directly display the parameters of work
rev., work current and torque. The engine may be suitable for power
grids of 50Hz and 60Hz.
The roller and helix stowing tool, as the major components of the
decanter centrifuge are designed independently by the company, and
are made of stainless steel (American Steel No.: 304). All the
welding lines are inspected and treated with certificate of
conformity or record. And the gyrator will have the resistance to
wearing and erosion, and the roller shield, segregation box, main
transmission shield and auxiliary transmission shield are all made
of stainless steel.
The helix vanes are made through bead welding, spray welding and
modules to ensure the resistance of the decanter centrifuge to
wearing and erosion, greatly improving its service life. It is
equipped with dual overload protective devices for machinery and
electric appliance for safe operation.
And it is equipped with the vertical or horizontal fluid-supplying
pump designed and produced by the company, with the tools and
reserves for equipment use and routine maintenance, with Chinese
and English Users Manual and block diagram and explosion diagram,
for users to choose the appropriate model, delivery, operation and
maintenance.
It is a widely used modeland the power frequency model is available
in three types of rotation speed. It is suitable for most drilling
fluid treating requirements and has the advantage of occupying a
small area and convenient in installation and debugging.