Research of ways to reduce mechanical influence on floccules in a centrifuge

Authors

  • Андрей Александрович Шкоп National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002, Ukraine https://orcid.org/0000-0002-1974-0290
  • Моисей Абрамович Цейтлин National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002, Ukraine https://orcid.org/0000-0002-2452-7814
  • Алексей Валерьевич Шестопалов National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002, Ukraine https://orcid.org/0000-0001-6268-8638
  • Валентина Федоровна Райко National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002, Ukraine https://orcid.org/0000-0002-5527-1874

DOI:

https://doi.org/10.15587/2312-8372.2017.93690

Keywords:

sludge treatment unit, polydisperse sludge, destruction of floccules, strength of floccules, centrifuge improvement

Abstract

The ways to reduce the mechanical influence on flocculed aggregates of polydisperse sludge at its dewatering in the centrifuges are studied. It is determined that by changing the design of the feed pipe and the conditions of slurry supply in the centrifuge can be reduced hydromechanical effect on sludge floccules, providing their minimum destruction. It is proposed to install the guide channels along the side surface of the feed pipe so that the direction of slurry flow from the channels coincides with the direction of rotor rotation. Pulp flows along a tangent to the drum surface and only a small part of the flow experiences shear stresses. Installation of booster sleeve with guide pipes, preventing suspension spraying, in the drum allows the slurry to flow down smoothly directly on the surface of the rotor bath depth. It is found that such improvement of centrifuge design increases the efficiency of treatment of flocculed sludge to 99 % and reduces the entrainment of solids with centrate by minimizing destruction of floccules.

Author Biographies

Андрей Александрович Шкоп, National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002

Department of Chemical Technique and Industrial Ecology

 

Моисей Абрамович Цейтлин, National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Professor

Department of Chemical Technique and Industrial Ecology

Алексей Валерьевич Шестопалов, National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Chemical Technique and Industrial Ecology

Валентина Федоровна Райко, National Technical University «Kharkіv Polytechnic Institute», Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Professor

Department of Chemical Technique and Industrial Ecology

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Published

2017-01-31

How to Cite

Шкоп, А. А., Цейтлин, М. А., Шестопалов, А. В., & Райко, В. Ф. (2017). Research of ways to reduce mechanical influence on floccules in a centrifuge. Technology Audit and Production Reserves, 1(3(33), 39–45. https://doi.org/10.15587/2312-8372.2017.93690

Issue

Vol. 1 No. 3(33) (2017): Chemical Engineering

Section

Ecology and Environmental Technology: Original Research

License

Copyright (c) 2017 Андрей Александрович Шкоп, Моисей Абрамович Цейтлин, Алексей Валерьевич Шестопалов, Валентина Федоровна Райко

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