Breakage of particles in bends of pneumatic and hydraulic conveying

Dmitry Portnikov, Nir Santo, Haim Kaiman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The current work concerns experimental investigation of particle breakage in different types of bends during pneumatic and hydraulic conveying. The experiments performed using a hydraulic and pneumatic conveying experimental systems, which consists of 2 inch galvanized steel pipes. Several types of bends were checked, including: regular bends with various R/D ratios, blind T bend with various L/D ratios and flexible bends made of polymer material. By comparing between hydraulic and pneumatic conveying, the results show similar behaviour. The use of blind T bend with deeper pocket will result in less breakage than the regular bend in both conveying systems. The effect of particle velocity on the breakage of salt particles was checked by impact tests in liquid and air. In addition, the strength of dry and wet salt particles was checked by compression tests. It was found that the dry and wet salt particles have the same strength. Moreover, the approach particle velocity during the impact tests in liquid was found to be different from the real impact velocity. The analysis showed that the real impact velocity is half of the approach velocity for salt particles.

Original languageEnglish
Title of host publication18th International Conferences on Transport and Sedimentation of Solid Particles, T and S 2017
EditorsVaclav Matousek, Jerzy Sobota, Pavel Vlasak
PublisherWydawnictwo Uniwersytetu Przyrodniczego we Wroclawiu
Pages249-256
Number of pages8
ISBN (Electronic)9788377172698
StatePublished - 1 Jan 2017
Event18th International Conferences on Transport and Sedimentation of Solid Particles, T and S 2017 - Prague, Czech Republic
Duration: 11 Sep 201715 Sep 2017

Publication series

NameInternational Conferences on Transport and Sedimentation of Solid Particles
ISSN (Print)1232-3071

Conference

Conference18th International Conferences on Transport and Sedimentation of Solid Particles, T and S 2017
Country/TerritoryCzech Republic
CityPrague
Period11/09/1715/09/17

Keywords

  • Hydraulic conveying
  • Particle's breakage
  • Pneumatic conveying

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Environmental Engineering
  • Pollution
  • Waste Management and Disposal
  • Water Science and Technology

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