You could try to include a wheightometer of some sort. ■

Originally Posted by mechanicaldesigner

What are the correct instruments to consider for a pipe conveyors:

Zero Speed Detector

Pullcord

Plugged chute detector

Beacon

Horn

Belt Rip Detector??

Monitoring System?(embedded sensors?)

Others?

Regards,

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In Addition, You Need:

Plugged Pipe @ Load Station - Shutdown

Seam Rotation - Warning & Shutdown - big problem if moving material in two directions on top & bottom strands - no spillage allowed

Side Travel Monitor@ Head Discharge - Warning & Shutdown

Take-up Overtravel - Warning & Shutdown - Too Long & Too Short

All the standards:

Motor Current Overload, Bearing Heating & Vibration

Motor Load Sharing Imbalance - Warning - pulley material buildup or pulley lagging failure

Reducer Oil Flow, Heating, Vibration

Pulley Pillowblock Bearing Heating & Vibration

Specials:

Return Strand Spillage Control at Head Discharge - transitiioning back to pipe

Pulley Cover Wear - outer belt cover wear due to mal-adjusted pulley alignment, mal-adjusted idler alignment

Others can do more: ■

Hi,

You are right Mr. Lawrence. Here you can use plugged pipe, seam rotation, side travel monitor and some more important products. Expect of this there are no more instruments for pipe conveyors. As we all know Pipe conveyors are an environmental friendly solution for conveying bulk material with zero spillage and ability to cover terrain difficult to negotiate by conventional conveyors. So it’s necessary to use right instruments for this. ■

Common problems in pipe conveyors are

1.0Not selecting proper belt and belt manufacturer.

2.0Motor is short of power

3.0Pipe conveyor pulley failure

4.0Pipe conveyor belt skewing

5.0Pipe not opening at head pulley

Following precautions are to be considered while installing a New pipe conveyor

1.0Pipe conveyor expert should be involved in design of pipe conveyor

2.0Only experienced belt manufacturer to be selected for pipe conveyor belt

3.0Belt Selection is very very important. Most important is belt rigidity / Belt troughablity . If belt is not selected properly pipe formation will not be proper and conveyor may require abnormal power

4.0Motor shall have sufficient margin to cater for new Belt rigidity

5.0Belt profile should be very carefully selected considering proper horizontal and vertical curves considering pipe diameter, belt tension and belt rigidity

6.0Transition distances for pipe formation should be properly designed based on type of belt , tension rating and pipe diameter

7.0Idler diameter and spacing should be properly selected

8.0While selecting pulley shaft diameter higher shaft sizes to be selected to cater for higher tension rating due to stiff belts and higher motor ratings

9.0Fabrication and erection of conveyor Galleries and idler supporting structure should be very accurate particularly at curve portions.

10.0During commissioning alignment of idlers and pulleys is very important ■

Most important sensor in pipe conveyor is providing a sensor before pipe formation which can detect overloading of material / bigger lumps and stop the conveyor before reaching the overloaded material to pipe formation zone .

In pipe conveyor we cannot overload the conveyor as well as lumps bigger than recommended size can not be transported . ■