Dear collegues,

since 2 years I am involved in dense phase pneumatic conveying (not full time, though).

But I am still confused about the pro's and con's of the systems on the market:

1.) There are sending vessels with bottom and with top outlet.

2.) There are systems without vessel but using a high pressure rotary valve to feed the product.

3.) Some vessel systems empty the conveying line at the end of a cycle, other do not.

4.) Some need boosters every 1.5 m (5 ft) others convey 400 m without any secondary air.

I am sure that DIFFERENT PRODUCT PROPERTIES resulted in the variation of technical solution.

So my question is:

Is there any open literature providing an overview of the different system and RELATING THEM TO PRODUCT PROPERTIES ?

Thanks to all answers. ■