[Gasification] "the DriZzleR Gasifier": A new filter and a new pyrotouch

Tom Miles tmiles at trmiles.com
Mon Jul 21 15:00:58 CDT 2014

Try a shorter URL http://bit.ly/WyRmeV

-----Original Message-----
From: Doug [mailto:Doug.Williams at orcon.net.nz] 
Sent: Monday, July 21, 2014 12:49 PM
To: Discussion of biomass pyrolysis and gasification
Cc: Tom Miles
Subject: Re: [Gasification] "the DriZzleR Gasifier": A new filter and a new

Hi Tom,

I get the Web site but no video as described, is this the same for everyone?
Doug Williams,

On Mon, 21 Jul 2014 07:56:29 -0700
"Tom Miles" <tmiles at trmiles.com> wrote:

> http://thedrizzlergasifier.blogspot.com/2014/07/a-new-filter-and-new-p
> yrotou
> ch.html
> A new filter and a new pyrotouch
> Hi All,
> New Filter design, First part of the video.
> I just posted a video of a test of my new filter setup. The previous 
> filter a combination of cokes coal/woo/stainless steel shavings works 
> well but created Too much presure drop. Also It was a real mess this 
> coals SS shavings ... ugly smell and difficult to clean or to dispose.
> This filterset up is far more lighter in application and has very 
> little pressure drop. Off coarse I have tested it only for 2.5 hours 
> so I can not tell how fast it will pack up with dirt.
> New pyrotouch/kompaktor/agitator. Second part of the video.
> A DriZzLeR being a gasifier working in drip feed need to be feed the 
> least possible amount of fuel. Also the flaming pyrolysis zone should 
> be kept very shallow and always at the same level. This is easy if you 
> have a constant load; then just DriZzle in on time interval. But 
> coupled on a generator in island mode with various laod demands and 
> thus various fuel consumption, on should have some kind of a level 
> sensing device to feed more under heavy load and less in idle load. 
> The Pyrotouch/kompaktor works fine with dense fuel such as pellets. 
> With Woodchips the constant hitting the fuel, even if only very little 
> force, is compacting the reduction  too much and after some hours the
reduction is packed densely and the gasifier stops breathing.
> Also when DriZzling in pellets the distribute fine all over the 
> flaming pyrolysis. Woodchips are falling down in one chute and pile up 
> on one side of the fuel tube. The other side gets no wood and burns 
> empty with as result a big hollow burn. So the Pyrotouch should have 
> one more function extra, an agitator and leveling function to make an 
> even and level flaming zone. In the second part of the video I show an
attempt to achieve this goal.
> Unfortunately the micro switch being too close to the hot zone melted.
> Adaptations are needed But the principle seems to work.
> Have a look in this video, subscribe, advise and comment
> Luk

Doug <Doug.Williams at orcon.net.nz>

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