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Relevant bibliographies by topics / Slurry pump

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Academic literature on the topic 'Slurry pump'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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Journal articles on the topic "Slurry pump"

1

Sun, Shilong, Peter W. Tse, and Y. L. Tse. "An Enhanced Factor Analysis of Performance Degradation Assessment on Slurry Pump Impellers." Shock and Vibration 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/1524840.

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Slurry pumps, such as oil sand pumps, are widely used in industry to convert electrical energy to slurry potential and kinetic energy. Because of adverse working conditions, slurry pump impellers are prone to suffer wear, which may result in slurry pump breakdowns. To prevent any unexpected breakdowns, slurry pump impeller performance degradation assessment should be immediately conducted to monitor the current health condition and to ensure the safety and reliability of slurry pumps. In this paper, to provide an alternative to the impeller health indicator, an enhanced factor analysis based impeller indicator (EFABII) is proposed. Firstly, a low-pass filter is employed to improve the signal to noise ratios of slurry pump vibration signals. Secondly, redundant statistical features are extracted from the filtered vibration signals. To reduce the redundancy of the statistic features, the enhanced factor analysis is performed to generate new statistical features. Moreover, the statistic features can be automatically grouped and developed a new indicator called EFABII. Data collected from industrial oil sand pumps are used to validate the effectiveness of the proposed method. The results show that the proposed method is able to track the current health condition of slurry pump impellers.

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Mrinal, KR, and Abdus Samad. "Performance prediction of kinetic and screw pumps delivering slurry." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 7 (March 22, 2018): 898–911. http://dx.doi.org/10.1177/0957650918760161.

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Transporting slurry is a difficult task and industries use a kinetic or centrifugal pump or a screw or progressive cavity pump to deliver it. On the other hand, approximation models can help predicting performance and avoiding the expensive experiments of pumps with slurries. In this work, bentonite-based slurries were prepared and pumped by a centrifugal pump and a progressive cavity pump. The experimental facilities were developed in-house and artificial neural network-based approximation models were developed to predict performances. The approximation models say that it can eliminate the expensive testing to draw performance curve a pump. The relative merits of the pumps show that the progressive cavity pump has a better capability to handle the slurries or high viscosity fluids.

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Noon, Adnan Aslam, Absaar Ul Jabbar, Hasan Koten, Man-Hoe Kim, Hafiz Waqar Ahmed, Umair Mueed, Ahmad Adnan Shoukat, and Bilal Anwar. "Strive to Reduce Slurry Erosion and Cavitation in Pumps through Flow Modifications, Design Optimization and Some Other Techniques: Long Term Impact on Process Industry." Materials 14, no. 3 (January 21, 2021): 521. http://dx.doi.org/10.3390/ma14030521.

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Centrifugal pumps are being widely used in various industries for moving fluids that carry solids through pipelines where the need of head and flow rate is not high. Slurry erosion and cavitation are an extremely complex and not yet fully understood phenomenon that occur in centrifugal pumps; however, these undesirable phenomena can be reduced to a certain extent. Appropriate design and development of experiments is required to reasonably predict slurry erosion and cavitation. However, CFD methodology complements analytical solutions and experiments whenever testing of equipment has limitations. The current paper highlights the various slurry erosion and cavitation reduction techniques utilized by different researchers. Economic analysis conducted for a case study relevant to centrifugal pump (CP) usage in Pakistan shows that an 8% enhancement in pump efficiency can reduce the life cycle cost to about 17.6%, which could save up to USD 4281 for a single pump annually in Pakistan.

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Zhang, Qihua, Shun Kang, Zhiang Xie, Li Cao, Zhaoxu Yan, and Weidong Zhang. "Pulp pumping efficiency II – Designing of a pulp pump." Nordic Pulp & Paper Research Journal 36, no. 2 (March 4, 2021): 265–75. http://dx.doi.org/10.1515/npprj-2021-2008.

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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.

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Deng, Liwen, Qiong Hu, Jun Chen, Yajuan Kang, and Shaojun Liu. "Particle Distribution and Motion in Six-Stage Centrifugal Pump by Means of Slurry Experiment and CFD-DEM Simulation." Journal of Marine Science and Engineering 9, no. 7 (June 29, 2021): 716. http://dx.doi.org/10.3390/jmse9070716.

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Six-stage centrifugal pumps are used in deep-sea mining lifting systems and are required to convey slurry containing coarse particles. A six-stage centrifugal pump suitable for operation in a natural mining system was manufactured. High-flow and full-scaled slurry conveying experiments at a 5% and 9% volume concentration of particles was carried out at a large modified test site with artificial nodules. CFD-DEM simulations were carried out to obtain slurry transport characteristic curves, particle transport and distribution characteristics, where the simulation method was validated by the experiment data. A clarified two-stage pump can be used instead of a multi-stage pump for simplified simulation calculations with acceptable accuracy. Local agglomeration of particles caused by backflow was found at the outlet of the diffuser, and such agglomeration decreased with increasing flow rates. It was found that particles are transported non-uniformly, particles transport in diffusers in strands. Particles are transported in a pulse-like mode within the pump, with the latter stage showing similar particle characteristics to those transported in the previous pump stage.

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6

He, Peng Cheng, and Peng Yun Song. "A Simple Correlation Equation to Predict Pump Performance for Slurry." Applied Mechanics and Materials 365-366 (August 2013): 365–69. http://dx.doi.org/10.4028/www.scientific.net/amm.365-366.365.

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As to the centrifugal pump for slurry, the effects of solids particles on the performance of the pump have been extensively researched. It is essential to understand the effects of solids on the pump performance well in order to obtain the performance of centrifugal pump for handling slurries. Some existing correlation equations to predict the performance are analyzed and summarized in this paper. A new simple correlation equation to predict the head ratio for pumps handling solids has been developed. The simple equation has been validated by the experiment data published in the related literature. The results by the simple equation are compared with ones available in the literature. The result shows that the simple equation is in good agreement with the experimental data, and it can be used to predict the performance of centrifugal pump for slurry.

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Stehr, Gunther C., Ariunbolor Purvee, and Battsengel Baatar. "Characterization of Substrate Materials of Pump Parts and Copper Ore Slurry from a Mongolian Mining Site." Solid State Phenomena 323 (August 30, 2021): 76–86. http://dx.doi.org/10.4028/www.scientific.net/ssp.323.76.

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Slurry pumps are used to move and lift a mixture of copper ore and water at mineral processing plants. However, in the process, the pumps wear out at a high rate, which is costly and time consuming. This paper is a characterization of the chemical composition, microstructure, and hardness of samples from a copper ore mining company’s slurry pump and gravel material. With this information, studies using new technology and cladding materials can then be conducted, to compare and select the most effective treatment of the slurry pump’s surfaces to increase its operational lifetime.

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Zhao, He Yong, Shao Guang Liu, Yun Sang Feng, Ji Peng Yao, and Yu Song Xu. "Failure Analysis of Desulfurization Slurry Circulating Pump and HVOF Coating Protection Technology Progress." Applied Mechanics and Materials 320 (May 2013): 374–82. http://dx.doi.org/10.4028/www.scientific.net/amm.320.374.

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Failure form and erosion-corrosive mechanism of desulfurization slurry circulating pump were analyzed comprehensively, its protection status and HVOF spraying protection technology research were discussed, the technical characteristics and good prospects of HVOF applied in the slurry circulating pump were pointed out in this paper.Keywords: Desulfurization, Slurry circulating pump, Erosion, Corrosion, HVOF

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Ridgway, N., C. B. Colby, and B. K. O’Neill. "Slurry pump gland seal wear." Tribology International 42, no. 11-12 (December 2009): 1715–21. http://dx.doi.org/10.1016/j.triboint.2009.04.047.

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Bonner, Chuck. "Selecting the right slurry pump." World Pumps 2006, no. 473 (February 2006): 30–33. http://dx.doi.org/10.1016/s0262-1762(06)70912-9.

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Dissertations / Theses on the topic "Slurry pump"

1

Furlan, John Michael. "Particle Concentration Measurements in a Centrifugal Slurry Pump Using an A-Scan Ultrasound Technique." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1301325325.

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Kalombo, Jean-Jacques Ntambwe. "Centrifugal pump derating non-Newtonian slurries: analysis of the viscosity to be used in the hydraulic institute method." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/905.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2013
Centrifugal pumps are the most commonly used pumps in slurry transport systems. The design of pumping systems dealing with liquids more viscous than water requires a reliable method of pump performance prediction for the pump selection. For Newtonian fluids, the Hydraulic Institute method is well established, but there is no generally accepted method for non-Newtonian fluids. Many authors have fallen back on using the Hydraulic Institute method for non-Newtonian fluids. This requires a constant viscosity while non-Newtonian fluid viscosity varies with the shear rate. The question arises: What viscosity should be used in this method for non-Newtonian fluids? Two approaches have been developed: the use of a Bingham plastic viscosity made by Walker and Goulas (1984) and the use of the apparent viscosity calculated using an “equivalent hydraulic pipe” diameter, designed by Pullum et al. (2007). Previous results obtained from these two approaches are not in agreement. Therefore, the aim of this study is to explore a suitable procedure to determine a representative non-Newtonian viscosity to be used in the Hydraulic Institute method to predict the pump performance. To achieve this goal, a set of data was experimentally obtained and the existing data were reused. Test work was conducted using the pump test rig in the Flow Process Research Centre at the Cape Peninsula University of Technology. A Warman 4/3 pump was tested, using four concentrations of kaolin suspension and three concentrations of CMC solution. Five pump speeds were chosen to run these tests: 1200, 1400, 1600, 1800, and 2000 rpm. An additional data set obtained by testing two submersible centrifugal pumps with eight concentrations of sludge, in Stockholm, Sweden, was also analysed. These sets of data were analysed firstly according to the Walker and Goulas (1984) approach and secondly according to the Pullum et al. (2007) approach. The use of the apparent viscosity led to the better pump head prediction. The results of this prediction were close to those obtained in the Pullum et al. (2007) work, and even better in some cases. On the other hand, the use of the Bingham plastic viscosity showed better pump efficiency prediction, although the Walker and Goulas (1984) efficiency prediction range was achieved only for one pump out of five. The apparent viscosity reflected the non-Newtonian behaviour but it could not represent alone the non-Newtonian viscosity because of the poor efficiency predictions and the sensitivity of the Pullum et al. (2007) approach to a change in viscosity. From the results of this work, it is advisable that the pump performance prediction be done using both apparent and Bingham plastic viscosity, the apparent viscosity for the head prediction and the Bingham plastic viscosity for the efficiency prediction.

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Béreš, Matej. "Návrh čerpací stanice pro dopravu hydrosměsi." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231458.

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This master’s thesis is concerned about the flow of hydro-mixture in pipelines. In the first part, I am reviewing the characteristics of disperse systems, pumps and pipelines used in hydro-mixture transportation. Slurry pumps and polyethylene HDPE pipelines receive an extra attention. In the second part, I am working with data obtained from the co-operation with the PROGROUPE Sediment Removal company. These data were measured during revitalization of the water dam Gabčíkovo. In the next step, I use the data to suggest the required characteristic for the slurry pump for pump station in project of revitalizing Borovoe lake, situated in Kazakhstan.

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Hughes, Kevin Lewis William. "Optimisation of methane production from anaerobically digested cow slurry using mixing regime and hydraulic retention time." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/18869.

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AD is regarded as a sustainable technology that could assist the UK Government meet internationally agreed GHG emission targets by 2050. However, the mature status of the technology is based on expensive systems that rely on high energy feedstock to be profitable. Meanwhile, the natural biodegradation of cow slurry is a recognised contributor to climate change despite having a relatively low CH4 potential because of the large volumes produced. Economic mixing is essential to the cost-effectiveness of farm AD but techniques applied are not always appropriate as slurry is a shear thinning thixotropic Herschel-Bulkley fluid and therefore challenging to mix. The apparent viscosity of slurry and the shear stress induced was most influenced by solids content (exponential change) followed by temperature (linear). Most shear thinning occurred before a rising shear rate of 20s-1 was achieved with the fluid acting near-Newtonian above. Thixotropic recovery occurred within 1 hour of resting. Rheological values were also much higher than previously reported. Highest CH4 production occurred in the first 10 days of the batch process using a range of mixing regimes with different shear rates and rest periods. During fed-batch operations, changing shear rate had a minimal effect on CH4 production using a 30-day HRT whereas shorter rest periods increased production. Specific CH4 production rate was highest when feeding and mixing coincided. However, when HRT was reduced (OLR increased) the CH4 produced by all mixed regimes significantly increased with highest values being achieved using high intensity mixing rested for short periods. Lower HRTs also requires smaller digesters. Parasitic mixing energy invariably had the most influence on net energy production. Signs of instability were evident after 20 days using the low HRT. Significant microbial adaptation was also observed as the experiments progressed. The research outcomes demonstrate that mixing regime and HRT can be managed to maximise net energy production whilst reducing capital expenditure.

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Posner, Barry. "The long-term performance of large centrifugal sand slurry pumps." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0002/MQ34405.pdf.

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Mathews, Jeffrey David. "Surface charge characterization of pulp fibers and charge distributions in papermaking slurry /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/5504.

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Lowe, D. "Wear of polymeric pipes and linings in hydraulic slurry transportation." Thesis, Open University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234747.

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8

Garman, Mohamed Ammar. "Local Particle Velocity Measurements In Slurry Flow In Pipes And Centrifugal Pumps Using Ultrasound Technique." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1417518176.

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Joffe, S. H. D. "The effect of operating parameters on the wear behaviour of disc poppet valves in reciprocating slurry pumps." Master's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/17649.

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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.

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Ehsan, Sadia. "High pressure homogenization of wood pulp samples prior to slurry introduction for the determination of Cu, Mn and Fe by graphite furnace atomic absorption spectrometry." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31225.

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The scope of these studies was two-fold: to evaluate high pressure homogenized slurries as a rapid means of screening wood pulps for their Cu, Mn and Fe content and to evaluate the high pressure homogenization in combination with chelating agents or enzymatic digestion for the liberation/extraction of metal ions from this matrix.
Cu, Mn and Fe were determined successfully in pulp samples using high-pressure homogenization prior to slurry introduction-GF-AAS. The analysis time of the method from sample acquisition to determination was of the order of a few minutes per sample.
Different cellulose swelling/dissolution agents were evaluated for the generation of quasi-stable pulp suspensions, rich in cellulose. High-pressure homogenization alone or in combination with chelating agents or enzymatic digestion was also investigated as a means of quantitatively releasing these metal ions into the liquid phases.
A new model of homogenizer equipped with ceramic homogenizing valve with a few modifications was evaluated in terms of metal contamination levels within the final sample dispersion. (Abstract shortened by UMI.)

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Books on the topic "Slurry pump"

1

National Research Council of Canada. Division of Energy. Peat Energy Program. Design and Construction of Peat Slurry Pump/Macerator. S.l: s.n, 1985.

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2

C, Wilson K. Slurry transport using centrifugal pumps. London: Elsevier Applied Science, 1992.

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R, Addie G., and Florida Institute of Phosphate Research., eds. Centrifugal slurry pump concentration limit testing and evaluation--phase 1: Final report. Bartow, FL: Flordia Institute of Phosphate Research, 2005.

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R, Addie G., GIW Industries, and Florida Institute of Phosphate Research., eds. Matrix pump performance evaluation while cavitating: Final report. Bartow, Fla: The Institute, 2001.

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Slurry Transport Using Centrifugal Pumps. Springer, 2005.

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6

C, Wilson K., ed. Slurry transport using centrifugal pumps. 2nd ed. London: Blackie Academic & Professional, 1997.

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7

Clift, R., G. R. Addie, A. Sellgren, and K. C. C. Wilson. Slurry Transport Using Centrifugal Pumps. Springer, 2010.

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Slurry Transport Using Centrifugal Pumps. New York: Springer-Verlag, 2006. http://dx.doi.org/10.1007/b101079.

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Clift, R., G. R. Addie, A. Sellgren, and K. C. Wilson. Slurry Transport Using Centrifugal Pumps. Springer, 2006.

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10

Clift, R., K. C. Wilson, A. Sellgren, and G. R. Addie. Slurry Transport Using Centrifugal Pumps - Second Edition. 2nd ed. Springer, 1996.

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Book chapters on the topic "Slurry pump"

1

Tse, Peter W., and Dong Wang. "Extraction of Principal Components from Multiple Statistical Features for Slurry Pump Performance Degradation Assessment." In Lecture Notes in Mechanical Engineering, 131–41. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15536-4_11.

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2

Luo, Xian Wu, Hong Yuan Xu, Juan Liu, and Long Hao Qi. "Abrasive Erosion Comparison for a Ceramics and a High Chrome Cast Iron Applied in a Slurry Pump." In High-Performance Ceramics V, 894–97. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-473-1.894.

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Tse, Peter W., and Dong Wang. "Performance Degradation Assessment of Slurry Pumps." In Lecture Notes in Mechanical Engineering, 149–58. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09507-3_15.

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Mani, Girindra, Dan Wolfe, Xiaomin Zhao, and Ming J. Zuo. "Vibration-Based Wear Assessment in Slurry Pumps." In Asset Condition, Information Systems and Decision Models, 105–23. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2924-0_5.

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Loderer, Pavol, and Aleks Roudnev. "Froth Pumping Using Warman® Centrifugal Slurry Froth Pumps." In The Minerals, Metals & Materials Series, 2915–26. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95022-8_246.

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Fu, Weng, Sabrina Lao, Yepeng Ding, and James Vaughan. "Separation of Lead from Chalcopyrite Slurry Using Resin-in-Pulp." In The Minerals, Metals & Materials Series, 2085–91. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95022-8_174.

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Tse, Peter W., and Changqing Shen. "Remaining Useful Life Estimation of Slurry Pumps Using the Health Status Probability Estimation Provided by Support Vector Machine." In Lecture Notes in Mechanical Engineering, 87–98. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09507-3_9.

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"Pump power." In Design of Slurry Transport Systems, 203. CRC Press, 1991. http://dx.doi.org/10.1201/9781482296600-36.

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Rayner, R. "SOLIDS AND SLURRY PUMPS." In Pump Users Handbook, 321—XXV. Elsevier, 1995. http://dx.doi.org/10.1016/b978-185617216-5/50025-4.

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"Solids-handling pump wear." In Design of Slurry Transport Systems, 144–52. CRC Press, 1991. http://dx.doi.org/10.1201/9781482296600-24.

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Conference papers on the topic "Slurry pump"

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Addie, Graeme R., J. R. Kadambi, and Robert Visintainer. "Design and Application: Slurry Pump Technology." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77253.

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Slurry Pumps are used throughout the world for the Transportation of Solids in Coal, Copper Iron-Ore, Phosphate and other Mines. They are also used in Dredges cleaning Waterways in Sand and Gravel, and in Phosphoric Acid and Alumina Plants. About $500 million worth of slurry pumps and replacement parts are estimated to be produced every year. Slurry pumps are similar to water pumps so a lot of the available water pump technology can still be used. When it comes to determining pipeline velocities and heads, and the effect of slurries on performance, however, different technologies are found to be necessary. In designing for, and predicting pump wear performance, for example, special numerical modeling tools are found to be necessary. Pump system evaluations require a completely different approach. Cost of ownership calculations for slurry pumps must for example, consider wear parts life as they can be 50% of the total. When the whole system is considered, it needs to be in terms of the cost of transporting a number of tons of dry solids a given distance. Not water transported or pump efficiency. The writers in this presentation provides an outline of the different technologies involved in the design and application of centrifugal slurry pumps, how these are applied, and the insight they provide.

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Judge, Robert A., and Alan Yu. "Subsea Slurry Lift Pump for Deepsea Mining." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20543.

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Recent developments in subsea mining as well as oil & gas exploration and development drilling will require the use of a subsea pumping solution capable of handling slurries. These slurries are characterized by relatively large particle sizes and non-uniform flow conditions including fluctuating solids concentrations, densities, viscosities, and maximum particle size in both the mining and drilling applications. While challenging enough in surface applications, slurry transport problems are exacerbated by the vertical lift required in subsea use. This paper will first present the effect of each varying parameter on the overall horsepower required. Additionally, the pumping efficiency of some different pump types when responding to these changing conditions will be shown. From a control perspective, altering a pump’s speed in response to changing flow conditions presents some unique challenges. As an alternative to adjusting a rotary pump’s speed, an algorithm to control a positive displacement pumping solution to automatically adjust its output in this application is presented.

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Roudnev, Aleksander S., Ronald J. Bourgeois, and Randy J. Kosmicki. "Slurry Pump Casing Wear Prediction Using Numerical Multi-Phase Flow Simulation." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78564.

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Wet end components of centrifugal slurry pumps used in the hydraulic transport of solids are subject to substantial erosive wear. Accurate prediction of the casing wear rate and location for a particular duty is beneficial for correct pump selection and design, maintenance planning, and elimination of emergency shutdowns. CFD multi-phase simulation using the Eulerian-Eulerian approach is being used successfully to determine the velocity fields and solids concentration in the centrifugal pump allowing for accurate predictions of casing wear patterns resulting from sliding abrasive wear. Simulation results for various single domain and multi-domain multiphase simulations are discussed. Emphasis is placed on results from a 3 dimensional, multi-domain transient, multiphase simulation and comparison to field data.

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Ran, Hongjuan, Xianwu Luo, Hongyuan Xu, Wen Luo, and Junqi Peng. "Parameter Selection of Fluid Dynamic Sealing for a Submersible Slurry Pump." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98197.

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In the case of slurry pumps, mechanical seal is usually used. It is well known that the pump is very dangerous if any solid particle enters the seal. Nowadays, people prefer to install a fluid dynamic sealing including 1 or 2 sets of minor vanes and an auxiliary impeller rather than using high-pressure cleaning water in a slurry pump. However, if a fluid dynamic sealing is not designed properly, the mechanical seal is apt to be destroyed by the invading solid particle, and the slurry pump axes is worn seriously and rapidly. Though there are few empirical methods for designing a fluid dynamic sealing, the definite design concept is much deficiency. In the present work, the geometry selection of the fluid dynamic sealing for a submersible slurry pump is carried out so as to establish the basic principle for a fluid dynamic sealing design. The model pump is of centrifugal type, and has the specific speed of 136 m·m3/min·rpm. In order to validate the design concept, three dimensional turbulent flow in the pump was simulated. The total pump channel including inlet pipe, impeller with attached minor vane set, volute casing, and auxiliary impeller is treated as the calculation domain. The mesh grid is more than 2,000,000 nodes. The numerical simulation has been conducted by using a commercial code Fluent v6.1.2. To see the effect of minor vanes and auxiliary impeller geometrical parameters on the sealing performance, we change vane number, vane height, and radius of the minor vanes and auxiliary impeller, flow-rate of sealing water, etc. Based on the numerical results, a set of favorable geometrical parameters of the fluid dynamic sealing was selected for a submersible slurry pump. It is noted that the pump with the newly designed fluid dynamic sealing had been successfully applied for actual operation in the Yellow River sand transportation system in Shandong province, China.

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Sellgren, Anders, Graeme Addie, and Krishnan Pagalthivarthi. "Wear and the Total Cost of Ownership of Slurry Pumps." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31283.

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When slurry pumps are considered for procurement for a solids transport requirement, decisions have often been made on initial price rather than the total cost of ownership (TCO). Depending on the type of solids to be transported, the design (and selection) of the pumps and the way they are operated; the wear, part replacement, and downtime can be a significant portion of the overall operating cost. Wear lives are here estimated with recently developed numerical simulation procedures for pump impeller and suction liner wear together with an established wear modeling schema for shells. White iron material is considered and the resulting modeled wear does not include any uncertainty related to the inherent stochastic nature of wear. It is shown in an example how shell, impeller and suction wear life and relative costs are related to different pump size and rotary speed designs. The results form a basis to find the best compromise between pump wear, power and capital cost in an overall TCO-perspective including the users practice and maintenance strategy.

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Leishear, Robert A., Richard A. Dimenna, David B. Stefanko, and Si Y. Lee. "Mixing in Large Scale Tanks: Part III — Predicting Slurry Pump Performance." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56209.

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This third in a series of four papers (Parts I–IV) presents the equations used for the initial evaluation of a pump’s ability to suspend solids and extends those equations to establish the minimum local velocity required to suspend those solids. This minimum velocity was used in a finite difference model in Part I to predict the ability of a pump to suspend, or slurry, solids that had settled on the bottom of a nuclear waste tank. To slurry waste, the Advanced Design Mixer Pump (ADMP) discharges a fluid jet that impinges on, shears, and then suspends the waste. Prior to the pump’s installation in a waste tank, the local velocity at a point in the flow required to suspend solids was found from available equations, material properties, and empirical data for similar pumps. Also, the computational fluids dynamics (CFD) model was validated in Part II by comparing it to flow rates measured in a full scale test facility where the ADMP was operated. The CFD fluid model could then be used to predict flow rates throughout the actual waste tank where the pump was to be installed, and the ability of the pump to adequately slurry the waste could be shown. All that needed to be done was to compare the local velocity of the fluid required to shear the waste into suspension to the velocities modeled throughout the waste tank. In short, this paper validates the theoretical and experimental basis for the derivation of a minimum velocity required for the flow stream to shear the waste into suspension. The final installment to this series of papers (Part IV) validates the application of the CFD model, by concluding that a nuclear waste tank is effectively cleaned to the wall throughout most of tank, using the ADMP.

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Mehta, M., J. R. Kadambi, S. Sastry, J. M. Sankovic, M. P. Wernet, G. Addie, and R. Visintainer. "Particle Velocities in the Rotating Impeller of a Slurry Pump." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37062.

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The velocities of the slurry particles in the impeller of a centrifugal slurry pump were obtained utilizing Particle image velocimetry (PIV) technique in conjunction with refractive index matching. Tests were performed in an optically clear centrifugal slurry pump at speeds of 725 rpm and 1000 rpm using a slurry made up of sodium iodide solution as a working fluid and glass beads (500μm mean diameter) as solid particles at volumetric concentrations of 1%, 2%, and 3%. In the intra blade region of the impeller, the highest particle velocities were obtained in the suction side of the blade and in the blade trailing edge region as the blade sweeps through and velocity magnitude increases with the increase in the pump speed. But this magnitude was less than that of circumferential velocity of the blade tip. The average particle velocities were obtained and it was found that the average particle velocity decreases with increase in concentration. The fluctuating component of particle velocity, which is related to the fluctuation kinetic energy were obtained. With the increase in the particle volumetric concentration, fluctuation kinetic energy decreases and the maximum fluctuation kinetic energy typically occurs on the suction side of the blade. The slurry particles are pushed on the pressure side of the blade and slide on it which can result in frictional wear. These results are discussed in this paper.

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Madadnia, Jafar, Mostafa Amjad, and Jeffry Kusnan. "Analysis of Severe Erosion in Industrial Centrifugal Slurry Pumps." In ASME 2013 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fedsm2013-16435.

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Centrifugal pumps designed for homogenous slurries experience inefficiency, off-design operations, shorter service-life expectancy, and rapid geometry change due to localized and uneven erosion. Experimental and numerical research to design erosion-free pumps has been inconclusive due to complexity of heterogeneous, multiphase slurry flows and mechanism of the localized material losses. This paper reports on erosion-effects of slurry flows on a number of industrial centrifugal pumps selected from an active copper mine field. The field samples include three metallic pumps operating in a serial-arrangement, and a number of worn pump-components with fully rubber-lined or metallic wetted-surfaces. Physical samples were also collected and photographed under an electronic microscope. The analysis of the photographs shows directional groves, ripples-formations, pitting, cavities, spots, and abrasive-embedding on the pump surfaces. The effected regions included a) hub or tip of the vane leading edge of impellers, b) internal and external surfaces of shroud and downstream of expellers, c) front-liners/throat bush all at the proximity of the inlet throat/tube, and d) Volute surface close to the discharge throat/tube on the spiral tail. Analysis of eroded regions suggests a combination of mechanisms some similar with those found with a sustained flow acceleration and momentum change towards a surface. A wear model is therefore recommended for the severe erosion in pumps which resembles erosion by cavitation. To further understand and verify the finding and to be able to predict and to avoid accelerated-erosion, an experimental modelling and a numerical modelling of slurry flows in two identical-centrifugal-pumps are conducted in series and preliminary results are presented. The project is in progress.

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Leach, Stuart, Glen Smith, and Roland Berndt. "SME Special Session: Subsea Slurry Lift Pump Technology - SMS Development." In Offshore Technology Conference. Offshore Technology Conference, 2012. http://dx.doi.org/10.4043/23224-ms.

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Bamberger, Judith Ann, and Carl W. Enderlin. "Experimental Evaluation of Dual-Opposed Jet Mixer Pump Performance for Slurry Mixing." In ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fedsm2016-7749.

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Million-gallon double-shell tanks at Hanford are used to store transuranic, high-level, and low-level radioactive wastes. These wastes consist of a large volume of salt-laden solution covering a smaller volume of settled sludge primarily containing metal hydroxides. These wastes will be retrieved and processed into immobile waste forms suitable for permanent disposal. Retrieval is an important step in implementing these disposal scenarios. The retrieval concept evaluated is to use submerged dual-nozzle jet mixer pumps with horizontally oriented nozzles located near the tank floor that produce horizontal jets of fluid to mobilize the settled solids. The mixer pumps are oscillated through 180° about a vertical axis so the high velocity fluid jets sweep across the floor of the tank. After the solids are mobilized, the pumps will continue to operate at a reduced flow rate producing lower velocity jets sufficient to maintain the particles in a uniform suspension (concentration uniformity). Several types of waste and tank configurations exist at Hanford. The jet mixer pump systems and operating conditions required to mobilize sludge and maintain slurry uniformity will be a function of the waste type and tank configuration. The focus of this work was to conduct a 1/12-scale experiment to develop an analytical model to relate slurry uniformity to tank and mixer pump configurations, operating conditions, and sludge properties. This experimental study evaluated concentration uniformity in a 1/12-scale experiment varying the Reynolds number (Re), Froude number (Fr), and gravitational settling parameter (Gs) space. Simulant physical properties were chosen to obtain the required Re and Gs where Re and Gs were varied by adjusting the kinematic viscosity and mean particle diameter, respectively. Test conditions were achieved by scaling the jet nozzle exit velocity in a 75-in. diameter tank using a mock-up of a centrally located dual-opposed jet mixer pump located just above the tank floor. Concentration measurements at sampling locations throughout the tank were used to assess the degree of uniformity achieved during each test. Concentration data was obtained using a real time in-situ ultrasonic attenuation probe and post-test analysis of discrete batch samples. The undissolved solids concentration at these locations was analyzed to determine whether the tank contents were uniform (≤ ±10% variation about mean) or nonuniform (> ±10% variation about mean) in concentration. Concentration inhomogeneity was modeled as a function of dimensionless parameters. The parameters that best describe the maximum solids volume fraction that can be suspended were found to be 1) the Fr based on nozzle average discharge velocity and tank contents level and 2) the dimensionless particle size based on nozzle diameter. The dependence on the jet Re does not appear to be statistically significant.

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Reports on the topic "Slurry pump"

1

Lee, S., and R. Richard Dimenna. SLURRY PUMP MIXING EFFECTIVENESS IN TANK 50H. Office of Scientific and Technical Information (OSTI), April 2008. http://dx.doi.org/10.2172/927604.

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Parish, W. R. Tank 29 salt removal method using slurry pump agitation. Office of Scientific and Technical Information (OSTI), November 1993. http://dx.doi.org/10.2172/10112679.

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HANSEN, ERICH. PHYSICAL PROPERTIES OF KAOLIN/SAND SLURRY USED DURING SUBMERSIBLE MIXER PUMP TESTS AT TNX. Office of Scientific and Technical Information (OSTI), November 2005. http://dx.doi.org/10.2172/882706.

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HANSEN, ERICHK. Physical Properties of Kaolin/Sand Slurry Used During Submersible Mixer Pump Tests at TNX. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/829909.

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Bonney, G. E. Centrifugal slurry pump wear and hydraulic studies. Quarterly technical progress report, January 1, 1987--March 31, 1987. Office of Scientific and Technical Information (OSTI), January 1987. http://dx.doi.org/10.2172/231295.

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Cooper, P. Centrifugal slurry pump wear and hydraulic studies. Quarterly technical progress report for the period of 1 April 1987--30 June 1987. Office of Scientific and Technical Information (OSTI), December 1987. http://dx.doi.org/10.2172/231335.

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LEE, SIY. CST Suspension Analysis for Slurry Pumps of Tank 40. Office of Scientific and Technical Information (OSTI), April 2004. http://dx.doi.org/10.2172/828772.

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Lee, S. Y. Sludge Heel Removal Analysis for Slurry Pumps of Tank 11. Office of Scientific and Technical Information (OSTI), September 2003. http://dx.doi.org/10.2172/816014.

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Lieshear, R. A. Modifications to, and Vibration Analysis of Tank 7 Slurry Pumps, F Tank Farm. Office of Scientific and Technical Information (OSTI), May 2002. http://dx.doi.org/10.2172/799358.

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Poirier, M. ASSESSMENT OF THE ABILITY OF STANDARD SLURRY PUMPS TO MIX SOLIDS WITH LIQUIDS IN TANK 50H. Office of Scientific and Technical Information (OSTI), November 2011. http://dx.doi.org/10.2172/1032067.

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