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The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps
An investigation has been carried out to determine the factors controlling the wear characteristics of disc poppet valves in reciprocating slurry pumps used in the transportation of quartzite slurries. A laboratory test rig has been designed and built which closely simulates the operating conditions...
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| Format: | Thesis |
| Language: | Eng |
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Centre for Materials Engineering
2016
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| _version_ | 1867614124070928384 |
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| access_status_str | Open Access |
| author | Joffe,S.H.D |
| author2 | Allen, Colin |
| author_browse | Allen, Colin Joffe,S.H.D |
| author_facet | Allen, Colin Joffe,S.H.D |
| author_sort | Joffe,S.H.D |
| collection | Thesis |
| description | An investigation has been carried out to determine the factors controlling the wear characteristics of disc poppet valves in reciprocating slurry pumps used in the transportation of quartzite slurries. A laboratory test rig has been designed and built which closely simulates the operating conditions experienced by slurry pump valves. Experiments have been conducted to determine the effect of the design parameters, namely - slurry constitution, valve closure velocity and valve angle, on the wear resistance of a low alloy steel, as a function of its mechanical properties. It has been shown that the wear of the valves is a sensitive function of the operating parameters. Significant improvements in the life of the valves can be achieved through increasing material hardness, reducing valve closure velocity, slurry density and valve angle. A detailed study has been made of the mechanisms contributing to valve wear. It has been established that both percussive impact and three body abrasion wear mechanisms predominate. The influence of each mechanism has been shown to be a function of the slurry constitution and the material hardness. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17649 |
| institution | University of Cape Town (South Africa) |
| language | Eng |
| last_indexed | 2026-06-10T12:47:03.084Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Centre for Materials Engineering |
| publisherStr | Centre for Materials Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/17649 The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps Joffe,S.H.D Allen, Colin Materials Engineering Applied Science An investigation has been carried out to determine the factors controlling the wear characteristics of disc poppet valves in reciprocating slurry pumps used in the transportation of quartzite slurries. A laboratory test rig has been designed and built which closely simulates the operating conditions experienced by slurry pump valves. Experiments have been conducted to determine the effect of the design parameters, namely - slurry constitution, valve closure velocity and valve angle, on the wear resistance of a low alloy steel, as a function of its mechanical properties. It has been shown that the wear of the valves is a sensitive function of the operating parameters. Significant improvements in the life of the valves can be achieved through increasing material hardness, reducing valve closure velocity, slurry density and valve angle. A detailed study has been made of the mechanisms contributing to valve wear. It has been established that both percussive impact and three body abrasion wear mechanisms predominate. The influence of each mechanism has been shown to be a function of the slurry constitution and the material hardness. 2016-03-11T14:24:20Z 2016-03-11T14:24:20Z 1988 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/17649 Eng application/pdf Centre for Materials Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Materials Engineering Applied Science Joffe,S.H.D The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps |
| thesis_degree_str | Master's |
| title | The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps |
| title_full | The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps |
| title_fullStr | The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps |
| title_full_unstemmed | The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps |
| title_short | The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps |
| title_sort | effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps |
| topic | Materials Engineering Applied Science |
| url | http://hdl.handle.net/11427/17649 |
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