[Stoves] New kind of Sawdust stove

[Crispin Pemberton-Pigott]

Dear Friends

I have just seen a type of sawdust burning stove not encountered before. It was designed by a guy called Altanbek, which means "Goldman".

It is a vertical cylinder like a TLUD, with no primary air supply below the fuel.

[cid:image002.jpg at 01D22DFC.8B9BAE90]You can see a handle on top of a pipe - the pipe is open at both ends. Air will enter the pipe and go down into the fire. The pipe has a sliding fit through a hole in the top cover which is reasonably air tight.

















The cover at the bottom is to allow for the removal of ash.






Here is a view looking into the pipe from the top.
[cid:image004.jpg at 01D22DFC.8B9BAE90]

The pipe can be lifted by its handle in which case the plate welded on the end will knock against the underside of the cover, and the cover can in this way be removed.
[cid:image008.jpg at 01D22DFC.8B9BAE90]

Here is a view of what is on the bottom:

[cid:image012.jpg at 01D22DFC.8B9BAE90]The disk is there to mount the other parts. The extensions on the side keep the pipe providing the air centered. The rectangles on the underside of the disk sit on the sawdust.

The flames pass between the disk and the stove body.

Sawdust is packed into the stove lit on top. Then the cover is placed on the body and the disk dropped onto the fire. Although not visible in the first photo there are 2 secondary air holes on opposite sides 125mm below the top.

The stove works well and produces a roaring flame. As the sawdust burns, the pipe drops into the stove by gravity.

Altanbek was burning waste cloth mixed with sawdust when I saw the stove operating. First some sawdust is placed in - about 75mm compacted, then a layer of cloth is added. Then another layer of sawdust and so on. The cloth is free from the sewing factory nearby.

Removing the top and looking inside while it is running stops the fire because of the missing blast of air.

[cid:image013.jpg at 01D22DFC.8B9BAE90]
Not much to see. Putting the pipe and cover back, the fire resumes burning. You can see one of the secondary air holes. It is not known if they are actually required. Possibly not.

In theory this method could be used to burn duff coal - a nearly free fuel that the very poor struggle to burn.

Summary: It is a TLUD with primary and secondary air supplied from above.  The stove is used to heat the office of the welding shop.

Regards
Crispin

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 91032 bytes
Desc: image001.png
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image007.png
Type: image/png
Size: 298745 bytes
Desc: image007.png
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment-0001.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 11785 bytes
Desc: image002.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.jpg
Type: image/jpeg
Size: 4757 bytes
Desc: image004.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image008.jpg
Type: image/jpeg
Size: 13311 bytes
Desc: image008.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image012.jpg
Type: image/jpeg
Size: 16852 bytes
Desc: image012.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment-0003.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image013.jpg
Type: image/jpeg
Size: 16997 bytes
Desc: image013.jpg
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20161024/7b1c3073/attachment-0004.jpg>