Predicting and preventing wear in pneumatic conveying systems
Bradley, Michael, Farnish, Richard and Deng, Tong (2011) Predicting and preventing wear in pneumatic conveying systems. In: BulkSolids India 2011, 6-8 April 2011, Mumbai, India. (Unpublished)
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There are many great advantages to using pneumatic conveying systems for transport of materials, one of these being flexibility of routing – a pneumatic pipeline can incorporate multiple changes of direction without the need for transfer points and additional drives which are needed everywhere a mechanical conveying system changes direction. However, one of the disadvantages of using bends in pneumatic conveyors is the wear of the bends, if the
material being conveyed is at all abrasive e.g. if the particles are hard and angular such as minerals, coal, ash etc. Wear also often occurs in long straight sections just after pipe joints. This wear problem is often very costly, resulting in many unplanned stoppages for repair on systems conveying these materials, as well as producing severe mess from leakage of the material after a puncture.
There are many different means of providing wear protection for bends and straight pipe sections, but they too can be costly, with the best wear resistant materials costing as much as $5000 per bend or even more to apply; and the wrong choice can lead to much wasted money if it does not give the protection hoped for. Other wear resistant solutions can severely increase the energy consumption of the conveyor, or limit its throughput, if applied too liberally. Hence it is very important to choose carefully the right means of wear protection. This paper will review the common sites and causes of conveying pipeline wear, and show that with the latest technology for characterising the erosiveness of the conveyed material, it is possible to choose a wear protection solution that will give cost-effective protection.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||predicting, preventing wear, pneumatic conveying systems|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|School / Department / Research Groups:||School of Engineering|
School of Engineering > Wolfson Centre for Bulk Solids Handling Technology
|Last Modified:||05 Mar 2012 10:21|
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