Pulp pumping efficiency II – Designing of a pulp pump
-
Qihua Zhang
,
Shun Kang
Abstract
Based on the loss model of pulp pump set up in the I part of this research, an efficient designing method is proposed by taking account of the influences of head reduction by small blade number, leakage loss via tip clearance, and erosion-corrosion wears in pumps separately. Further, a two-stage optimal designing approach was proposed to tackle the oversized design. The pump designing was performed by coupling with a CFD-based optimization procedure. An efficiency increase of near 10 % was achieved on the pump model validated in laboratory. It was proved that performance could be improved by increasing the impeller blade width and enlarging the impeller blade outlet angle. It was further shown that the erosion-corrosion wear in pulp pump was relatively lighter when compared to particle-impingement wear in slurry and sewage pump. Adoption of composite material showed potential in energy-saving in the pumping system.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51309118
Funding source: Natural Science Foundation of Jiangsu Province
Award Identifier / Grant number: BK20130527
Funding source: Six Talent Peaks Project in Jiangsu Province
Award Identifier / Grant number: 2015-ZBZZ-016
Funding statement: The authors are grateful for the financial support by the National Natural Science Foundation of China (No. 51309118), the Natural Science Foundation of Jiangsu Province (No. BK20130527), and the Six Talent Peaks Project of Jiangsu Province (No. 2015-ZBZZ-016).
Conflict of interest: The authors declare no conflicts of interest.
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Articles in the same Issue
- Frontmatter
- Review
- Aspects on bond strength in sheet structures from TMP and CTMP – a review
- Chemical pulping
- The impact of using different wood qualities and wood species on chips produced using a novel type of pilot drum chipper
- Temperature and effective alkali effect on brown pulp kraft cooking
- Mechanical pulping
- On the modeling of pulp properties in CTMP processes
- Paper technology
- Pulp pumping efficiency I – A critical review on loss and its estimation
- Pulp pumping efficiency II – Designing of a pulp pump
- Three-dimensional scanning electron microscopy used as a profilometer for the surface characterization of polyethylene-coated paperboard
- Paper chemistry
- Ageing mechanisms of the papers with zeolite and PCC fillers
- Synthesis of macro-RAFT agent containing M13-10 and its application in surface sizing agent
- Coating
- The role of MFC and hydrophobically modified ethyl(hydroxyethyl)cellulose in film formation and the barrier properties of methyl nanocellulose film
- Printing
- Fabrication of rosemary essential oil microcapsules and using in active packaging
- Packaging
- Development of a nonwetting coating for packaging substrate surfaces using a novel and easy to implement method
- Recycling
- Wet route pellets production using primary sludge from kraft pulp mill
- Chemical technology/modifications
- Modification of cellulosic filler with diisocyanates – volatile organic compounds emission assessment and stability of chemical structure over time
- Characterization and application of wood-ZrO2 sorbent for simultaneous removal of chromium (III) and chromium (VI) from binary mixture
Articles in the same Issue
- Frontmatter
- Review
- Aspects on bond strength in sheet structures from TMP and CTMP – a review
- Chemical pulping
- The impact of using different wood qualities and wood species on chips produced using a novel type of pilot drum chipper
- Temperature and effective alkali effect on brown pulp kraft cooking
- Mechanical pulping
- On the modeling of pulp properties in CTMP processes
- Paper technology
- Pulp pumping efficiency I – A critical review on loss and its estimation
- Pulp pumping efficiency II – Designing of a pulp pump
- Three-dimensional scanning electron microscopy used as a profilometer for the surface characterization of polyethylene-coated paperboard
- Paper chemistry
- Ageing mechanisms of the papers with zeolite and PCC fillers
- Synthesis of macro-RAFT agent containing M13-10 and its application in surface sizing agent
- Coating
- The role of MFC and hydrophobically modified ethyl(hydroxyethyl)cellulose in film formation and the barrier properties of methyl nanocellulose film
- Printing
- Fabrication of rosemary essential oil microcapsules and using in active packaging
- Packaging
- Development of a nonwetting coating for packaging substrate surfaces using a novel and easy to implement method
- Recycling
- Wet route pellets production using primary sludge from kraft pulp mill
- Chemical technology/modifications
- Modification of cellulosic filler with diisocyanates – volatile organic compounds emission assessment and stability of chemical structure over time
- Characterization and application of wood-ZrO2 sorbent for simultaneous removal of chromium (III) and chromium (VI) from binary mixture
