Re: Pipe Conveyor Problem
It seems the belt construction has changed in a significant way. Why was the construction changed? Is the belt from the same manufacturer? What is the ply make-up?
Going from a EP-400 x 2 plies to EP-600 x 4 plies is a big jump in stiffness. On first impression, it seems like a mistake to apply such a hugh difference in belt construction. Did you ask for advice from the belt manufacturer or do it all yourself?
In addition, do you know or specify the ply oreintation in the belt or just buy a standard construction and try to make it work as a pipe conveyor? ■
Re: Pipe Conveyor Problem
Sorry for the new belt spec which is 630 x 3 ply not 600 x 4 ply.
Note: the stiff new belt power is increased by the stiffer construction, the forming force necessary to maintain its circular shape, the increased viscoelastic rolling resistance created by the pressure applied at the interface between belt cover and idler rolls, and drag from added pressure on idlers. ■
Re: Pipe Conveyor Problem
Before an expert can recommend a means to reduce the forming force, we need to know more about the design to assess the what can be done. Idler spacing, roll diameter, belt construction beyond the simple spec of EP-630 x 3 ply.
Placement of the fabric, fabric construction, width of each ply within the group of 3 plies, and routing of the belt axis in the horizontal and veritcal configurations. Some information on the conveyor geometry, belt pipe diameter, belt construction, and idler details are necessary, as well as take-up system details, and drive details.
Some rollers may be removed provided they do not jeapordize your need to maintain a tight seal at the overlap. ■
Re: Pipe Conveyor Problem
I've got a bit of deja vu here ..... 
https://forum.bulk-online.com/showth...threadid=18127
2 problem machines due to changing the belt specification ■
Pipe Conveyor Problem
dear sir,
In our plant, we are having 1.5 Km pipe conveyor. recently we have changed the conveyor belt with the construction of EP 630/3. Now we are not able to run the conveyor because of high current more than 330 Amps. The contruction of old blet was EP 400/2. Earlier we had run the conveyor with 90Kw motor and 156Kw rated capacity gear box without any problem. It was drawn 105amps at the full speed with load.
Currently, we are replaced motor with 200Kw and 265Kw rated capacity of gear box. On the first day it was run at full speed and drawn 310 amps without load. But on second day , after 2hrs of running the conveyor drawing 330 amps and got tripped.
so, please suggest us the ways to reduce the current.\\
Mahendiran ■