The recent progress in momentum, heat and mass transfer studies on pneumatic conveying: a review

Prediction of Horizontal Pneumatic Conveying of Large Coal Particles Using Discrete Phase Model

“…For a long time, research on fluid flow containing particles has become important in engineering [1][2][3][4]. e pneumatic conveying focusing on gas-solid two-phase flow plays an important role in a conveying system.…”

Increased biosecurity in feed manufacturing through effective hydrothermal treatment and recontamination prevention during drying, cooling and handling

“…The transfer of feed within a mill can be improved upon to prevent recontamination of feed. Pneumatic conveyors are broadly used in the materials handling industry because transfer of bulk solids can be performed rapidly and can be combined with both heating, drying and cooling processes (Dhurandhar et al, 2018). Pneumatic conveying systems are becoming more common in the feed industry due to a growing recognition of their advantages .…”

“…Basic components of a pneumatic conveying system include an airlock-style feeder that allows clean air and material to enter the system, a pipeline that conveys the mix of air and material, and a cyclone-style discharge hopper and filter that separates material and air as both exit the pipeline (Figure 7-1). During pneumatic transport, solid particles (such as feed mash or pellets) can be cotransported using air with a velocity higher than the particle terminal velocity (Dhurandhar et al, 2018). Pressure difference along the pipeline moves bulk material from regions of high pressure to low pressure using a vacuum, blower, or compressor.…”

“…It is important to produce pellets of high durability and to properly design a pneumatic system to retain pellet quality throughout transportation. Pneumatic conveying has been used as a heat exchanger and dryer in cement plants to preheat the kiln feed and in pharmaceutical plants for moisture removal (Dhurandhar et al, 2018). In a pneumatic conveying system, the heat transfer rate depends upon the heat transfer area which changes based on the concentration of particles being transported (Rajan et al, 2010).…”

“…The interaction that occurs between the conveyed material and the air are functions of basic physical properties such as particle size, density, shape, size distribution, surface hardness, and loose poured bulk density (Dhurandhar et al, 2018). The objective of this study was to evaluate the feasibility and cost effectiveness of a pneumatic conveying system design in place of a typical counterflow cooler and bucket elevator to enhance feed safety during handling of heattreated feed mash and pellets while preserving feed quality in the new feed mill to be built at Iowa State University.…”