Shale shaker is the first level in drilling mud solid phase control system, dispose the mud which carrying large drilling cuttings returned from the well and enter into the second separation equipment. And the main problem is screen replacing, follows are the how to install and correctly adjust the screen.
1.The screen can be used alone, and also can be used duplex and more screen connection. According to users’ requirements to manufacture the inlet mud manifold.
2.Installation and replacement of the screen.
Screen is a more expensive quick-wear part in the equipment, the installation quality is directly influence its service life. Screen adopts bolts tighten device.
Notice: when operation, firstly tighten the right (viewing from discharging sand mouth) makes the screen outboard clamp the limited block which in the bottom of spiral hole, the three bolts should all firstly fix the middle one and make it is more uniformity. The bolt is the dedicated, when replace in the field we must carefully operate and avoid to lose.
3.Adjustment of the screen box dip angle.
When mud displacement is oversize or viscosity is overtop, screen will running mud, this moment we must rapidly adjust screen box dip angle. The size of dip angle is according to don’t run mud o be as the best. The shale shaker screen box dip angle can be adjusted according to requirements, from -1°, 0°, 1°, 2°, 3°, 4°, 5°. When adjust it, first take out the archivierungen, then use lead screw adjust it to make screen box dip angle changed, insert the dowel after adjusted. When screen box works, the mud must filled up above 3/4 of screen surface, if it is not filled up 3/4 of screen surface which is show that screen is too coarse. In order to improve purification effect, we must replace fine mesh screen at this times.
4.The fixed of the screen box in transportation process.
In order to avoid shale shaker damaged in transport process, Notice: the locking lathedog must be locked to make screen box and foundation don’t have relatively vibration in transport process; before start operation we must open the locking lathedog, otherwise will make equipment badly damaged.
5.The maintenance of screen surface.
Before every stop screen, it should be idling 5-12 minutes, meanwhile use pure water wash the screen. Pershift should uses water (summer) or steam (winter) washes screen surface and screen shoe at least. Screen and screen shoe can’t have too much sediment. Especially the mud with the big viscosity, density or use above 60 mesh screen. Otherwise, the viscous materials or after the fine sand is dry up on the screen will blocking the screen holes, when re-start shale shaker will decrease screen filtering effect and must run mud and cause the unnecessary loss.
