Page 20 - ConveyorBeltMaintenanceManual2010

An attempt to approach the above “ideal condition” should be made continually by adjusting the chute arrangement.
Optimum loading and transferring through chutes still requires considerable experimental adjustment in the field.
Skirt boards should be used to further center and settle the load as it leaves the loading point. The steel structure of the
chute and skirts never should be placed closer to the surface of the belt than 1”; this distance to be made increasing in the
direction of belt travel to free any material trapped between the belt surface and the skirt (Fig. 24). Skirt boards are usually
4 or 5 times the belt width in length, but may vary considerably due to belt speed, type of material and lump size. Sample
skirt board arrangements are shown in Fig. 25.
Fig. 24
1" Minimum Increasing in
Direction of Travel
Usually
4 to 5 x
Belt Width
Fig. 25
Sample Skirt Board Arrangements
Method A
Backup Plate
Skirt Board
Rubber Held
in Compression
Variable
Idler
Angle
Variable
Idler
Angle
Method B
Backup Plate
Skirt Board
Rubber Held
in Compression
Variable
Idler
Angle
Method C
Backup Plate
Skirt Board
Rubber
18
INSTALLATION, MAINTENANCE & TROUBLESHOOTING GUIDE
i n s t a l l a t i o n