Retrofits to Existing Systems

Practical modifications to resolve flow issues. Lecture 7 in our main solids flow series.

About this Course

The basics of solids flow

Lecture 7

In Lecture 7, Retrofits to Existing Systems, Joe Marinelli of Solids Handling Technologies discusses several possible retrofit solutions to common flow problems.  Joe will describe uses for liners such as TIVAR 88 and 2B stainless steel along with coatings such as electrostatic powder coatings and Plasite 7122 epoxy coating.

Geometry modifications are considered, such as wedge type hoppers, Diamondback hoppers, splitters and chutes.  These modifications are practical and will resolve many flow issues


Joe discusses inserts such as classical inverted, cone shaped inserts along with a unique cone-in-cone design.  The cone-in-cone approach will allow the user to: modify an existing funnel flow bin to flow in mass flow, provide anti-segregating benefits along with blending capabilities.

 The online video class is given along with handouts of the presentation and a quiz that will help to ensure your complete understanding of the concepts. Upon purchase of the course you will have 3 days to view the course before your access expires.


Design Principles for Reliable Flow


  • Introduction
  • Slide Handout
  • Lecture
  • Quiz

About Your Instructor

Joe Marinelli

Joe Marinelli

Senior Consultant

Joseph Marinelli, the founder of Solids Handling Technologies, Inc. in Rock Hill, SC is a bulk materials handling expert who has taught hundreds of highly acclaimed engineering seminars.  Since 1972, he has been active in testing bulk solids and consulting on materials handling systems design.  With Jenike & Johanson, Inc., world-renowned experts on solids handling, Mr. Marinelli received his Bachelor of Science degree in Mechanical Engineering, from Northeastern University in Boston, MA.

Mr. Marinelli has also worked for manufacturers of solids handling equipment, such as feeders and silos.  This background provides a unique blend of consulting and manufacturing experience to solve solids flow problems.

He lectures frequently, teaching courses on solids flow principles and flow property testing, and has authored several papers and an encyclopedia section on the subject.  Since 1997, he has been involved with very popular seminars at the University of Wisconsin in the areas of bin and feeder design and solids flow property testing.  He is also a columnist (“Powder Perspectives”) for the website,


Liners and Coatings

Geometry Modifications

Cost Considerations

Splitting Product Streams


Chute Design


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