13
2.4.3 Suction and discharge lines on the feed pump should be sized to minimize
head loss due to line friction.
2.4.4 A water line should be connected between the pump and the feed tube for
washing the bowl and conveyor prior to shutdown.
2.5 Liquid Feed and Discharge
2.5.1 The line feeding mud to the centrifuge should terminate with a male 2" NPT
fitting to mate with the 2" elbow on the feed tube. This line should be
supported so it's weight will not be on the feed tube.
2.5.2 The liquid outlet is a 8" Victaulic nipple. See Figure 5. The line connecting
to this nipple can be steel hard piping, flexible hose or PVC pipe. It should be
sized to accommodate the liquid discharge rate. Because the liquid discharge
is gravity flow, consideration should be given to the fall and length of this line
to avoid plugging from solids settling.
2.6 Solids Discharge
2.6.1 The outlet for solids discharge is 11-1/4" (286 mm) x 18-1/2" (470 mm) with
a 1-1/4" (32 mm) wide flange. See Figure 5
2.6.2 If the centrifuge cannot be located over the proper area a slide may be
attached to the solids outlet to route solids to the mixing pit. Since these
solids will be sticky, the slide must be set at a steep angle to prevent a solids
buildup.
2.7 Startup and Shutdown
2.7.1 Startup
Start back drive motor
Start main drive motor about 10 seconds after back drive motor. Do not start
motors simultaneously. The sudden power drain may overload the power
source.
Allow at least two (2) minutes for the centrifuge to obtain operating speed.
Bring mud feed rate up slowly to desired rate.
To Next Page
Loading...