You might try Lyn Bates of this forum and his company Ajax, Dr. John Carson, at Jenike and Johanson, Dietmar Schultz, or Dr. Peschel, as well as many others who have repeatedly published and contributed to this forum.

Your question has many parts:

1. classification of the mineral physical properites in a laboratory

2. need for an appropriated confined and unconfined stress flow measurements with moisture and granular size which is given in rheology terms.

3. comprehensive rheology based mathematical modeling tool, that incorporates points 1 and 2 to guide your understanding of the flow mechanics given you have determined the necessary properties and can resolve the stresses

4. there are chemical, and molecular based interactions between very fine particles for which you might study the claims of manufactures of instruments that are used to define the physical properties such as made by Malvern and Coulter. There is much more to fine particle physics than a simpilfied J&J formulation.. ■

I will be pleased to send some background details or relevant bulk material properties and powder testing methods. ■

You may like to read this article published last month in Chemical Engineering:

"Selection of Discharge Aids for Bins and Silos"

Regards,

Amrit T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting Services

Email: polypcc@aol.com

Ph and Fax: 304 346 5125 ■

Dear Mr. Bhatnagar,

I presume in the mean time you have completed the same, if so let me have ,kindly.

Regards.

A.Banerjee ■

Dear Mr. Ash,

For proper flow you must use aeroslide in the bins/bunkers. I suggest to visit site of CLAUDIUS PETERS.

Regards.

A.Banerjee ■

Originally Posted by A.Banerjee

Dear Mr. Ash,

For proper flow you must use aeroslide in the bins/bunkers. I suggest to visit site of CLAUDIUS PETERS.

Regards.

A.Banerjee

This is the first time I've heard of air slides being used on "sticky materials"

Unless we have different interpretations of "sticky materials" ■

Dear Sir,

Airslide is a perforated plate attached to the conical portion of bin. Air at 6 bar is passed through it so that material would not come into the wall resulting smooth flow. I am using in the lime bin/silos.

Regards.

A.Banerjee ■

Originally Posted by A.Banerjee

I am using in the lime bin/silos.

Sorry, but in my definition of bulk materials lime is NOT a sticky material.

It may be cohesive but as it can be fluidised it's not sticky. ■