Why Powderbulk Exists

Powderbulk is a small independent publication about moving, storing and controlling dry materials. It is written for plant engineers, maintenance leads, process designers, students and anyone who has watched a hopper refuse to empty and wondered what went wrong.

Three subjects that depend on each other

The site is organised around powder and bulk solids handling, dust collection and process engineering. A flow problem in a silo often shows up later as a dust problem at a transfer point, and a dust problem is often a design question that began upstream.

• Powder and bulk solids handling looks at flow behaviour, hoppers, feeders, conveying, segregation, caking and the everyday causes of blockages.
• Dust collection covers capture hoods, ducting, filter media, airflow, cleaning cycles and the signs that a collector is under strain.
• Process engineering places those units in the wider flow sheet, with attention to sizing, mass balances, scale-up and sensible questions to ask before buying equipment.

How the articles are put together

The aim is explanation a reader can use on the plant floor or in a design review. Technical statements are checked against standards bodies, engineering handbooks, peer-reviewed literature and equipment makers’ own documentation. Where results depend on a particular material, moisture level or particle size, the article says so instead of offering one tidy answer.

Practice changes as standards are revised and equipment improves, so pages are revisited and updated when something no longer holds.

Who reads it

Some readers are new to the field and need plain definitions. Others have years of experience and want a second angle on one stubborn problem. Nothing here assumes a large budget or a particular industry.

Spotted an error?

If a figure is wrong, a link has gone dead or a method failed on your material, write to [email protected]. A confirmed fix is applied directly to the article concerned, so the next reader sees the right version.