 You are not logged in. Consider these WOODWEB Member advantages:
burning saw dust
Any ideas on what I could add to sawdust as a binder so that I could compress this dust into bricks or blocks to burn in a wood fired boiler ? I'm scared of burning dust as dust . I was thinking of compressing this dust into blocks the size of a five gallon bucket .This dust contains a variety of wood including both solid wood shavings and MDF dust . 3/11
Good question. I'd like to add to it. Does anyone have experience burning green sawdust? This is from a band saw mill and is quite course. Usually oak, ash, maple. 3/11
Will,
3/11
The pellet machines are pretty $$$ units and I believe generally used by really large companies. An alternate suggestion, which may or may not help you, is to look into a wood stove that will handle the sawdust. I looked a couple years ago before I moved shops and there was an English stove that would burn sawdust. You would fill the stove, light it, and let it burn. It would also burn hardwoods of course. Don't remember the name but if your interested I'm sure a little googling would turn something up.
3/11
The pressure needed to bind the resin on its own is beyond any DIY project I think. It really needs alot of heat and pressure to get saw dust to bind together again witout adding anything to it. 3/11
use candle wax. heat it, mix it, press it out. 3/12
Dave and Will,
3/12
What about used motor oil as a binder I experimented with this in the past with some sucess .I stopped when I changed wood stoves .I use to have a top loader and it worked ok if the stove was empty and no fire to begin with .I've consider a thinned down glue but that could get expensive. Chips and shavings from molder and planer is no problem it's the dust that could cause an explosion.My inside collector uses a 55 gallon drum with plastic bags .I was considering leaving the sawdut in the bag and then using a hydraulic cylinder to compress 3/12
A wood dust briquetting machine from China that handles 80-120 KG an hour cost about $5000. It compresses and heats the wood to form round "logs". Very effective. Burns nicely. You can get an import broker and have them help you import it for about 8-10% of the total price. We got ours from Andy Wang in China. His email is tmcwoodworking@globalsources.com. You will find he is easy to communicate with and very responsive. 3/14
For a binder to make pellets use water and add heat to dry out the pellet. Spray water, compress and bake. "X" 3/22
Check out pelheat.com They offer a complete set up for about $50,000. Still kind of pricey. They are in England. A lot of information on the site too. The briquetting system from China sounds like a good economical solution. A search on briquetting offers some even cheaper presses, but probably too labor intensive. 3/28
Hi all, I am looking for a domestic solution. The commercial options are way too expensive. I cut and split my own wood for a log burning Rayburn cooker and for a log burning stove. I generate a moderate amount of sawdust (mostly oak, chestnut and silver birch) and would like to find a cheap/free method of turning this into blocks for burning on either stove. Any ideas gratefully received. Pierre. 7/30
if you have a hydraulic wood splitter you have what it takes to press sawdust bricks. just make you a metal mold with a tailgate. 10/3
I was looking at a brochure woodmizer sent the other day and they say they are in the final stages in making a heater that will use sawdust 10/3
I was at Woodmizer a few weeks ago and saw the Biomizer saw dust burner. It produces huge BTU's but unfortunately requires very little dust to do it. I need something that will burn it faster. Our helical head shavings are so fluffy we net mountains of waste. I still think the volume reduction benefits of a briquette machine would be awesome. Biomizer saw dust burner
I understand what you are saying but I think this is the first time I have ever heard somebody say the heater they looked at didnt use enough fuel :-)
Odd isn't it? I do not know what else to do with our walnut dust. No one will take it for compost, or anything else and sending it to the landfill is expensive. The days of getting away with open burning is over in our rural area since the Conservation Cops check out all large plumes of smoke and issue hefty fines. I need a more inefficient saw dust burner to get rid of our waste. I am waiting for Woodmizer to come up with a hot water boiler system. The one I saw was only forced air. A boiler could be pipep to the shop, barn, house, and garage as well as potable hot water and steam kiln. Then maybe I could burn up all of my waste.
Dan, did they have any pricing info when you saw the unit? I just took a look at the site and although there is some interesting info on the concept, I couldn't find much info about the furnace(s). Do they offer different sizes?
I'd also love to be able to burn off all my dust and shavings as opposed to carting them to the landfill, especially with nat gas prices on the rise this year. But my guess is this is probably a prohibitively expensive solution for a smaller (2k sq. ft.) shop.
we are installing a sawdust burner this weekend. we built it from salvaged parts. it will be heating our dry kiln. in test we have run, the burner produces a constant 185 degrees per burn.
Hunter;
Stephen, this is a low tech burner it top loads into burn chamber,bic igniter, it is a slow burn.it also has fire box for larger wood.other than the fact its fired by saw dust an shavings,its your basic hot water heating system.
In response to the original question, corn starch makes a good binder and is what charcoal plants use. High heat can also be used and is used for pellet making.
Gene
Years ago I tried using old motor oil as a binder it worked Ok until one day after spraying some finish I filler the old stove full of sawdust and some old oil .I just had told my helper lets get out of here and let this stuff dry.At that point the Door of the stove blew open and sent burning sawdust all the way to the other end of the shop and that was the end of my sawdust burning adventures.
I make a furnace that burns bulk wet sawdust and woodchips. or any other green material that you can insinerate
It is a clean burning unit and no material preperation needed. The only electricity to make this thing work is a fan to distribute the heat if you need to.
try the old conifer system there price list ranges from1,485.00 to 27,715.00 and the btu per hour ranges from 225,000 to a whopping 8,400.000
why not look at it the other way:
P&H stoker
I used to be a millwright in a pellet mill and we used water and vegetable oil with a LOT of heat and a rotary press mill the mills were really pricey but if you used a hydraulic ram and an extruder you can do it that way just break the pieces into chunks
We use any old small cardboard boxes eg fag packets, toilet rolls basically any box that's log size.
|
|
|
| |||||||||||||||
|
Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page. Contact us to discuss advertising or to report problems with this site. To report a problem, send an e-mail to our Webmaster Copyright © 1996-2009 - WOODWEB ® Inc. All rights reserved. No part of this publication may be reproduced in any manner without permission of the Editor. Review WOODWEB's Copyright Policy. The editors, writers, and staff at WOODWEB try to promote safe practices. What is safe for one woodworker under certain conditions may not be safe for others in different circumstances. Readers should undertake the use of materials and methods discussed at WOODWEB after considerate evaluation, and at their own risk. WOODWEB, Inc. RR4 Box 265A Montrose, PA 18801 Contact WOODWEB |
Member