Pneumatic conveying systems transport powders and bulk solid materials through pipelines with the flow of air or other gases. Pipelines can be configured to fit around equipment in place and existing plant layouts and can limit loss of material because of its enclosed design.

Most materials used in pneumatic conveying systems have a bulk density ranging from 5 to 100 lb/cu ft, according to bulk material handling and processing equipment manufacturer Coperion. The systems are used with a variety of dry materials, including pellets, granules, and powders.

To help our audience increase its knowledge of pneumatic conveying technology and concepts, Powder & Bulk Solids presents this list of free, informative videos on the systems and their use.

What A Dense Phase Pneumatic Conveyor Is
Schenck Process Group on YouTube

Bulk material handling technology firm Schenck Process illustrates the differences between dense phase, medium phase, and lean phase pneumatic conveying in this video. An animation allows viewers to see differences in air pressures and velocities of material flow between the three phases.

Demonstration of Two Types of Pneumatic Conveyance Systems
Salina Journal on YouTube

The Salina Journal takes us inside Kansas State University’s Bulk Solids Innovation Center (BSIC) in Salina, KS to observe dilute phase and dense phase conveying systems in operation. Coperion equipment is used to demonstrate how pressure and velocity impact the movement of plastic pellets.

Pneumatic Conveying Lecture
Multiphase Flows IITG on YouTube

Dr. Rajesh Kumar Upadhyay of the Indian Institute of Technology Guwahati Department of Chemical Engineering delivers this informative lecture on the fundamentals of pneumatic conveying. Viewers can learn the technical ins-and-outs of dilute and dense phase conveying, solid flow rate, causes of pressure drops, how to calculate force balance on pipe, and more.  

Explanation of Pressure Dilute Phase Conveying Systems
Powder Process-Solutions on YouTube

Dry ingredient processing solutions firm Powder Process-Solutions shows the functions of a pressure dilute conveying system in this short segment. The systems’ use of high air flow and low pressure is suitable for materials that are not impacted by high velocity like whey, whole grains, sugar, and cocoa.

Material Buildup in Pneumatic Conveying Systems
Industrial Accessories Co. (IAC) on YouTube

Find out how moisture and fine conveying material can cause buildup within pneumatic conveying systems in this primer produced by equipment maker Industrial Accessories Co. (IAC). Powder and bulk solids professionals should take note of the role that air pressure plays in moisture levels within this equipment.

To read more about pneumatic conveying, click here.