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Effect of turbulence generator structures to the performance of medium-consistency pump at high rotation speed excesses 2000 rpm

  • Yishan Kuang ORCID logo , Zhi Li , Xi Zhang , Tao Song EMAIL logo , Jun Li EMAIL logo , Jun Xu , Lihuan Mo and Kefu Chen
Published/Copyright: February 1, 2020
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Abstract

The medium-consistency (MC) pump is the key unit in modern pulp and paper industry, especially in medium-consistency bleaching plant. Use of MC pump improves the efficiency of bleaching sequences and reduces the pollution load of bleaching effluents. In this work, the component of MC pump, e. g. turbulence generators with three typical structures were studied to evaluate the effects of turbulence generator structure on the performance of MC pump. An automatic control system was built to control operation condition and to collect data online. Head and efficiency were calculated to evaluate the differences among three turbulence generators. The results showed that the linear-type, twist-type and screw-type turbulence generators exhibited similar performance (pump head and efficiency) of MC pump at high rotation speed (2000 rpm to 2900 rpm) compared to the well-known performance of MC pump at rotation speed lower than 2000 rpm which are significant different for the three turbulence generators.

Award Identifier / Grant number: 2014ZX07213001

Award Identifier / Grant number: 2017ZX07402004

Award Identifier / Grant number: 201714

Award Identifier / Grant number: 201831

Award Identifier / Grant number: 2018A030313211

Funding statement: The authors are grateful for the support of the China Major Science and Technology Program for Water Pollution Control and Treatment (2014ZX07213001 and 2017ZX07402004), Project of National Engineering Research Center for Efficient Utilization of Plant Fiber Resources (2017B090903003), State Key Laboratory of Pulp and Paper Engineering (201714 and 201831), Guangdong Provincial Special Support Plan for High-Level Talent Cultivation (2014TQ01N603), Guangdong Provincial Natural Science Foundation Project (2018A030313211), Guangzhou Special Support Program (2014TQ01N603), Science and Technology Plan Projects of Guangzhou city (201504010013 and 201707020011).

  1. Conflict of interest: The authors declare no conflicts of interest.

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Received: 2019-04-27
Accepted: 2019-10-24
Published Online: 2020-02-01
Published in Print: 2020-03-26

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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  1. Frontmatter
  2. Review paper
  3. On the development of the refiner mechanical pulping process – a review
  4. Bleaching
  5. Oxalate formation during ClO2 bleaching of bamboo kraft pulp
  6. Mechanical pulping
  7. Defibration mechanisms and energy consumption in the grinding zone – a lab scale equipment and method to evaluate groundwood pulping tools
  8. Paper technology
  9. Insight into fractionation performance of American old corrugated containers pulp in pressure screening
  10. Comprehensive utilization of Ganoderma lucidum residues in papermaking
  11. Effect of turbulence generator structures to the performance of medium-consistency pump at high rotation speed excesses 2000 rpm
  12. Mechanical properties of low-density paper
  13. Determination of relative solids concentration in homogeneous dual component pulp-filler suspension by multi-spectrophotometer
  14. Paper physics
  15. Surface characterization of paper and paperboard using a stylus contact method
  16. Paper chemistry
  17. Filler modified by a sequential encapsulation and preflocculation method and its effect on paper properties
  18. Significant contribution of fibrils on pulp fiber surface to water retention value
  19. Impregnation of paper with cellulose nanofibrils and polyvinyl alcohol to enhance durability
  20. Printing
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  23. Environmental impact
  24. Hydrophobic cellulose aerogel from waste napkin paper for oil sorption applications
  25. A comparative study of an anaerobic-oxic (AO) system and a sequencing batch biofilm reactor (SBBR) in coating wastewater treatment and their microbial communities
  26. Acknowledgment
  27. Acknowledgment
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