We are presently engineering the powder metering package for a new PP/HDPE plant of JV Basell/Orlen in Poland.

Looking for a solution to transport critical additives (e.g. Irganox 1076 stabilizer, Hostastat wax: will melt if subjected to friction and harden if subjected to mechanical pressure) over a distance of 8 m from 1st inlet to outlet of conveyor (total 5 inlets over the length), discharging into a continuous mixer. Operating 8400 h/a. Total 2 off units.

Further requirements:
Dust and gas tight to 20 mbarg (nitrogen blanketing), ambient temp. -25...+40°C, Zone 22 dust explosion hazardous area.

Base design was screw conveyors, involving features like PTFE-linings, water cooling, special flight design..., but we thought also of vibro conveyor, belt conveyor.

Anybody has a technical solution or even good reference for such application? Interested european vendors please ask for inquiry spec.

Best regards
M. Liesenhoff
Schenck Process GmbH
Phone 0049 6151 32-1699 Fax -2072