drywashing

[zatawitono]

sorry , before i was wronged post ..

i want build a gravitation drywash tower with 6inch pvc pipe . what should i prepare for inside the tower ?

[greasemonkey]

Take a look at this, from the Wiki.
http://www.biopowered.co.uk/wiki/Dry_washing

[zatawitono]

but any size of hardwood sawdust put inside tower ?

[greasemonkey]

I don't really know much about it. I think you need to use shavings rather than sawdust. The sort of thing that comes out of a plain. Sawdust will just block up, your wanting to get as much surface area of wood as you can.
The way I understand it, there are better ways  of achieving what a drywash tower does. Someone else will have to tell you that though.

[Tony]

Welcome to the forum.

Really a mix is good, some shavings and some sawdust (not too fine) - but mostly shavings.  You don't want it to plug up but you do want plenty of surface area for it to work.

The key is to pass the biodiesel through slowly, or do several pumped passes.  With my drywash tower I leave it circulating the batch in the settle tank for a few hours before the last pass into a storage tank.  In the settle tank the bio is just sitting on top of the soap layer that has dropped out, this is no problem.  Works a treat!

The first time you put bio through it will come out a dark colour, just keep recirculating until this goes.

Oh and always use hardwood shavings/sawdust

[zatawitono]

thanks for reply all . 

i will build it , and i will post here for your rating about my biodiesel drywash tower .

[Tony]

Excellent, look forward to seeing it!

I think I need to re-make mine, the black plastic stepped tails I solvent-welded into the sides have started to crack and leak over the years.  The other fittings (grey waste and the pipe itself) are absolutely fine, however.

So if you are going solvent weld I would probably avoid using these:

[zatawitono]

can i ask you ? what the use of this product ? does fuel through it to get into the dryeash tower ? the function is what ?

sorry , asks too much .

[Tony]

It takes various flexible hose sizes and adapts to plastic waste fittings - but don't use it!

[Julian]

My dry wash tower never sealed properly and the hoses used to leak/sweat.

I've got round the problem by mounting it in one of the settling tanks ... now it can leak to it's hearts content!

[Tony]

Erm, yes, because of the cracking tails issue mine lives in a bucket... should have done it the KH way with heat and brass tank connectors.

[Julian]

Erm, yes, because of the cracking tails issue mine lives in a bucket... should have done it the KH way with heat and brass tank connectors.

Err ... think that was the JP way, but it still leaks from the screw lid ends.

[K.H]

Rubbish, sure I built mine first! 
Sticking something up in admin later that might interest you two

[Julian]

Rubbish, sure I built mine first! 
Sticking something up in admin later that might interest you two

You did build yours first and you used tank connectors, but I think it was me who heated the area so that the connector sat flat.

I need to leave this Godforsaken world having left my mark on it somewhere!

If your version of events differs, get your second and pistol and meet me on the common at dawn.

[zatawitono]

can i use this shavings ?

i just take from an industry of making wood door and wood window .

http://i818.photobucket.com/albums/zz105/zatawitono/Untitled_zps3c6f2552.jpg