Directly Measure Particle Velocity
Just like in dilute phase conveying systems, dust collection systems require the bulk materials stay entrained in the air stream. This is accomplished when the air speed in the systems remains at or above the minimum conveying velocity for the product. If it dips below the minimum conveying velocity (also called transport velocity) the dust particles will begin to settle out of the air stream. Dust collector systems are engineered for certain parameters based on things like fan size, duct configuration, and filter media. Once in operation, it is more common that the engineered conditions do not always match the reality of the process conditions.Directly measuring the particle velocity inside the dust laden duct can provide operations the means to understand and even optimize the performance of their dust collector system.