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Research Papers: Friction & Wear

Erosive Wear Model of Slurry Pump Impeller

[+] Author and Article Information
Veselin Batalović

Faculty of Mining and Geology, University of Belgrade, 7 Djusina, Belgrade 11000, Republic of Serbiabatalovic@rgf.bg.ac.rs

J. Tribol 132(2), 021602 (Apr 26, 2010) (5 pages) doi:10.1115/1.4001167 History: Received December 19, 2008; Revised January 28, 2010; Published April 26, 2010; Online April 26, 2010

Erosion wear is a serious problem that constantly accompanies the operation of the system for hydraulic transportation of solid materials. The consequences are the loss of material (steel), loss of work element’s working capacity, great operational expenses, etc. The choice of new materials for working elements, improvements in construction, and optimization of the slurry flow are all various ways of softening the consequences of erosion wear that reflects on the working life of the hydraulic transportation pump’s elements. Data, which would be used for acquiring the above mentioned goals, are mainly acquired through testing in laboratory or semi industrial conditions. It has been proved that numerous influential and time effected values, complex and long term research, etc., make this job an expensive one, and the results are often solely applicable to specific operating conditions. To resolve this problem, the author suggests a combined approach: shorthand experimental researches and mathematical modeling of erosion wear. The suggested model, used for defining the mass loss of the working element affected by solid particles in the slurry, offers the possibility of introducing a greater number of influential values, some of which have a coincidental character. Through the realization of this model, wear intensity data is acquired, which are practically noncoincidental values with a great degree of reliability, and which greatly coincide with the results acquired through measurements conducted on the test facility.

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Copyright © 2010 by American Society of Mechanical Engineers
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Figures

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Figure 3

Wearing of the still plate: (a) impact angle ∼20 deg and (b) impact angle ∼90 deg

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Figure 1

Test pipe: (a) cross section and (b) stream flow around the cylinder. 1 is the sample, 2 is the Venturi insert, and 3 is the body

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Figure 2

Test plant: (a) test plant-assembly and (b) test plant-samples

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