Investigation of dust particle removal efficiency of self-priming venturi scrubber using computational fluid dynamics

Ahmed, S Basheer; Mohsin, Hassan; Qureshi, Kamran Rasheed; Shah, Ajmal; Siddique, Waseem; Waheed, Khalid; Irfan, Naseem; Ahmad, Masroor; Farooq, Amjad

doi:10.1016/j.net.2018.01.016

Cited by 17 publications

(3 citation statements)

References 7 publications

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“…There are several parameters that affect the venture performance such as the pressure drop, droplet and particle sizes, liquid droplet distribution, gas and liquid flow rate and the liquid injection system. Up to now, these parameters have been the subject of many experimental [6]- [8] and numerical studies [9]- [11].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Nozzle Location on Hydrodynamic Properties of a VenturiType Scrubber

2023

International Conference on Innovative Academic Studies

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This study reports the hydrodynamic properties of a wetted venture-type scrubber by injecting the liquid (water) into the mixture (air) flowing inside the venture. Venturies are used in various engineering applications such as in the chemical industry for the removal of dust and aerosols, waste combustion installations, gasification process, glass industry, and metallurgy for several types of degasses and marine industry for cleaning the gas from the unwanted harmful emissions such as SO2, H2S, and dust. The Computational Fluid Dynamics (CFD) technique is used for unsteady and turbulent flow of mixture in the venture. The Ansys Fluent, a commercially available CFD package is used for this two-phase flow. Before proceeding further, the numerical model is validated successfully with the data found in the open literature and then the parametric studies are performed in a systematic manner. For this purpose, the location of the nozzle(s) used for water injection into the venture scrubber is changed from the wall of the convergence section of the venture to the throat where the gas accelerates. The flow field is visualized with the pressure, and velocity contours, and the pressure and velocity distributions are shown along with the pressure drop in the venturi to assess the more suitable location of the nozzle.

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Section: Introductionmentioning

confidence: 99%

Effects of the Nozzle Location on Hydrodynamic Properties of a VenturiType Scrubber

2023

International Conference on Innovative Academic Studies

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“…However, relatively few studies have been conducted at home and abroad on electrostatic water film cyclone dust removal technology. Unreliable figures show that water film precipitators make up 50% of all coalfired boiler precipitators [1]. Wet-type electric precipitators have the following issues: (1) In most box-type wet dust removal wet-type electric precipitators [2], dust particles are released through the outlet with the airflow before the charge reaches the plate.…”

Section: Introductionmentioning

confidence: 99%

“…Unreliable figures show that water film precipitators make up 50% of all coalfired boiler precipitators [1]. Wet-type electric precipitators have the following issues: (1) In most box-type wet dust removal wet-type electric precipitators [2], dust particles are released through the outlet with the airflow before the charge reaches the plate. (2) The dust collection plate corrodes as a result of the water film adhering to it and the box structural plane being split [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Dust Removal Performance of Electrostatic Water Film Cyclone Dust Collector

Zhang,

Chen,

Zhong

et al. 2023

International Journal of Rotating Machinery

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Due to their limitations, conventional electric and water film dust removal methods struggle to handle fine dust. This study presented information on and examined the electrostatic water film cyclone dust collector (EWFCDC). By using the variable control approach, the impacts of inlet flow speed, water film flow rate, and corona pole form on dust removal performance were investigated. At EWFCDC, an orthogonal test was carried out to improve the test design and operating parameters based on the single-factor experiment. The pressure loss in the cyclone cylinder, when there is no water film and no corona pole, is a quadratic function of the inlet flow speed, and it is 2418.10 Pa at a 21.25 m/s inlet flow speed. The effectiveness of dust removal may be increased by increasing the water film flow rate. The effectiveness of dust removal is greatly influenced by the type of corona pole used, and cage needling thread is the optimal type. The electrostatic water film cyclone’s multimechanism coupling significantly increases the effectiveness of dust removal.

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Effect of non‐ionic frothers on bubble characteristics in flotation: a review

Pan,

Gao,

Zhu

et al. 2024

J of Chemical Tech & Biotech

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The properties and synthesis of frothers have been the subject of scientific research for over a century owing to their extensive use in various industries. Given that the characteristics of bubbles are dependent on the nature of frother, such as in flotation slime, it is crucial to control the dosage of frother to achieve optimal effects. Excessive dosage leads to reagent waste whereas insufficient dosage results in resource waste, both hindering carbon emission reduction efforts. This paper provides a comprehensive review of existing literature regarding the impact of frothers on bubble behavior. The available literature demonstrates that the bubble size and velocity decrease as frother concentration increases. The underlying reasons for this phenomenon are discussed extensively. Furthermore, the relationship between bubble characteristics and hydrophile–lipophile balance (HLB) of frothers is examined. Finally, a correlation between bubble energy at critical coalescence concentration and HLB is established. These valuable insights for further investigation into frother properties. © 2024 Society of Chemical Industry (SCI).

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Investigation of dust particle removal efficiency of self-priming venturi scrubber using computational fluid dynamics

Cited by 17 publications

References 7 publications

Effects of the Nozzle Location on Hydrodynamic Properties of a VenturiType Scrubber

Effects of the Nozzle Location on Hydrodynamic Properties of a VenturiType Scrubber

Experimental Study on Dust Removal Performance of Electrostatic Water Film Cyclone Dust Collector

Effect of non‐ionic frothers on bubble characteristics in flotation: a review

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