Well its 10/3/22 making some today I used 5 scoops to one cement .Not all is dust I do use some larger pieces .I use 3 lb plastic butter bowls for a mold and set in the sun.Hope you still are doing well Thomas .
Got started late and coal might not be available Still have some buried about 5 ft deep in the coal room Might squeak by i have wood also but some is green . Take care be safe and be prepared with whats happening in our world today .
11-10-11--been making them all this week and working well--had to add "floor leveler" as binder--fast setting and helps--my coal supplier has a heap of--say--very small chips--need 1 cup cement and 1 cup leveler to hold it--but burns well--I use 8 oz butter containers as molds. Going to try adding dust to mix to cut cement use--more later.
I had a little spot of bother trying to use anthracite dust, I found that if I soaked the sawdust in a little waste oil and then blended it, the cement would still hold it together, and I get a little ignition boost from the oil. I assume you were using some grade of bituminous? Either way, I have piles of coal dust that aren't going to waste. Thank you!
I do my bricks with charcoal ash and clay dirt no cement, and there's no crumble or crack of any kind, they become hard bricks under the sun for two days.....
heat values......1 kg bituminous coal slack =8 kw/kg 1 kg sawdust =6 kw/kg and 1kg of used motor oil (mineral ) oil =12kw/kg paper and and sawdust have simmilar values and cardboard a tad higher ...so you can design your own fuel and know how much each brick is in kw/kg
Are cellulose and lignin binding and hardening materials ... of crushed wood cells? I mean, it is used in the pressurized coal industry (mixing and pressing powder and breaking down charcoal)
I tried it. Cement doesn't work so far. Then I tried starch. Put water in starch boil it. Then mix it in coal dust. Then make bricks. They will be real hard...
Sawdust works as an accelerant. It's cheaper and safer than nitrates and to use nitrates, you need an 8,000 euro briquette press. Did I mention that nitrates are caustic as fuck? only use nitrates if you plan on selling briquettes to rich countries. Cement works great if you live in the rainy regions.
his ratio is 6 coal 1 sawdust quarter cement,as cement comes in 25 kg bag the formula is...25 kg cement 100kg sawdust 600 kg coaldust...which when you think about it is hardley any cement at all
Alternatively you could use starch, dextrin, or even thin wheat paste as a binder. It'll loose some heat and be less water resistant but probably slightly better than concrete as it would do the same just without adding to many non combustible materials. They would need to be kept dry though. This is how they 'glue' gunpowder for fireworks. Love the the concrete idea though (similar to store bought grilling bricks and is probably why it ashes so much.)
Have tried this method and they DONT burn they just crumbled to dust with no heat emission. Tried again with less cement but they crumble when drying and those that gave a big enough lump to handle still wont burn
@@fazaktom2323 grand merci Mr Thomas. C'est la première foi que quelqu'un me répond par rapport au Biocha. Mon soucis c'est comment obtenu la poussière. Le charbon de bois deforestre mon pays
Coal was once wood, millions of years ago, then compressed by the tons of stuff that covered it. Charcoal is made from living wood, burnt slowly (days) in an oxygen-reduced large kiln.
+Han Nwe Zin During combustion, the reaction between coal and the air produces oxides of carbon, including carbon dioxide (CO2, an important greenhouse gas), oxides of sulfur (mainly sulfur dioxide, SO2), and various oxides of nitrogen (NOx).
As seen in this video, I don't think mixture would work. I'm interested in your machine but with your machine how it hold in solid compressed state? Do you have to add special ingredients?
