It's so sticky!

Posted in: , on 8. Feb. 2012 - 07:16

We are now trying to handle a kind of sticky powder called "Lithium iron phosphate".

It's really sticky!

We take a hand of power and threw towards a mirror polished SS304 plate 90 degree vertically. They stayed on it!

We heated the powder with 300DegreeC for 2 hours. No change.

We tried teflon coated plate. The same!

What shall we do?

Shenjie Tel:+86(0)20 83553890,83550361 Fax: +86(0)20 83542314 [email][/email] [url=]Sino-Auto Technology[/url]

What Shall We Do?...Indeed

Posted on 8. Feb. 2012 - 02:33

Market it as a new toxic wallpaper dry adhesive? You can't cook it so you shouldn't eat it either.

Almost seriously:How much have you got and what would you be expecting to do with it. Handlingwise?

To quote Designer "If I was wanting to get there; I wouldn't be starting from here."

I have to ask it. How did you clean your hands?

Re: It's So Sticky!

Posted on 9. Feb. 2012 - 05:32

Yes, we need to do dumping, air conveying, storage and weighing for this powder.

Shenjie Tel:+86(0)20 83553890,83550361 Fax: +86(0)20 83542314 [email][/email] [url=]Sino-Auto Technology[/url]

Re: It's So Sticky!

Posted on 9. Feb. 2012 - 05:47

Firstly we need to dump from 25 kg small bag with a dumping station and vacuum convey to a 4M3 starage tank.

Then use a screw conveyor to make 300kg/batch into a blow tank.

Dense phase convey the powder from the blow tank into the next equipment.

As so sticky it is, screw conveyor works so slowly and blow tank also cannot work continoursly without knocking.

Shenjie Tel:+86(0)20 83553890,83550361 Fax: +86(0)20 83542314 [email][/email] [url=]Sino-Auto Technology[/url]

Dealing With Sticky P Roducts

Posted on 13. Feb. 2012 - 01:08

Sticky bulk materials require special design attention. The best way forward is to first establish the measured properties of surface cohesion and wall friction on different contact surfaces, so that the optimum constructional materials can be employed. PTFE has good surface release properties and UHMDPE is hydrophobic and resists surface tension of moisture, but they are not necessarily low friction because they are relatively soft and tend to be scoured by hard abrasive particles. Square corners must be avoided as they offer large surface contact for the small local mass content, so generous, smooth radii should be employed where possible. A clog-resisting design of screw is available to deal with sticky materials and judicious spacing of pitch construction for optimum extracting from storage. As the blow tank obviously has an outlet smaller than the critical orifice size, it should be converted to a suitable chisel size and a screw used to feed the blow line. Chutes and sliding surfaces that are handling cohesive bulk materials require a specific bed depth of product to ensure slip, depending on the slope, wall friction and surface cohesion as thin layers will stick upside down on a ceiling, as also happens with fine, dusty powders. Quantified measurements of the bulk material properties provide the basic technical data for design and good practice, but even so it can be difficult to accommodate the most recalcitrant products. A technical publication is available from is you send your full postal address.