Pads and wood granules (pellets). business creation?

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by Remundo » 07/12/08, 17:55

Woodcutter wrote:
Did67 wrote:
Remundo wrote:Hi Did67,

Stückholz: wood in pieces (chips)


At least on this point, trust me. I first spoke Alsatian, then learned French, my first foreign language ...

I wrote it but you don't want to see, or what?

Stückholz = logs !!!! (literally: pieces of wood) ...
[...]
But finally Did, you still don't know that when Raymond says something, it's the Absolute truth ? : Lol: : Wink:

Joking aside, I had not read what you said when I made my post, but I see that we are on the same wavelength ...

Ah ah Lumberjack :P

Got caught ... Because in my memories of German, the log says Scheitholz.

But it seems indeed that "Stückholz" is reserved for small logs ... well seen Did67

And that the plate (chipped wood) is called in our German neighbors the schnitzel

Wood in pieces, it reminded me of the plate, but it is not the case : Idea:

Yes bald meine Freunde 8)
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by Remundo » 07/12/08, 18:14

Hallo, ich bin zurück ...

German is a rich language, since I have just discovered that the Schnitzel is also called Hackgut ...

It is this document from Christophe who put me on the way:
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We find there Scheitholz and Hackgut, and pellet.

Gray energy of the fuel as a% of the final energy supplied.

Well we can see that the chipped wood is exactly like the log : Idea:

For the pellet, I find the figure a bit optimistic ...
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by chatelot16 » 07/12/08, 18:30

years ago I rented a plate crusher from a cuma cooperative for the use of agricultural equipment: he coseillait me a 150hp tractor with PTO at 1000rpm: I put it on a 60hp at 500tr / min and it worked very well, it just squirts less and it swallows less quickly

and when I make a grinder I will go further in this direction: even slower so as not to consume like an airplane, and a good automatic feeding system so that even if the flow is lower, we do the same quantity in the day

the machine that I had rented swallowed the branches at any speed: it was almost dangerous: there was a safety bar to stop the roller in advance if we were dragged by the branches: this system was triggered each time that '' there were branches clinging to it

I therefore prefer a crusher which swallows much less quickly but which swallows a larger number of branches at the same time: we can call each new branch we give it in what it is already swallowing
Last edited by chatelot16 the 07 / 12 / 08, 18: 48, 1 edited once.
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by Remundo » 07/12/08, 18:43

Quite Chatelot,

A good 60 CV, a good flywheel in the shredder, do not send too many branches at the same time and it works ...

Always this headlong rush towards power ... You have to borrow from the bank and grease the manufacturers of equipment ...

I can tell you that a 60 CV at full power on the PTO, it starts to settle ... Lots of people have small grinders on agricultural tractors not very impressive (like Fiat Someca, Massey Ferguson 155).
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by Ahmed » 07/12/08, 21:00

Woodcutter wrote:
In the Com-com 'next to mine, the shredding of green waste from individuals is done with an autonomous wheeled crusher of 65 hp.
I don't know if it is suitable for producing "platelets" but it does not accept branches with a very large diameter, I would say around 5 to 7 cm.

Often this type of mulcher for landscapers, unlike those used for pruners, is of the "hammer" type. This type of device is more energy-intensive, but better absorbs various green waste (leaves, grass, very wet and sticky waste, etc.), it is also much less sensitive to stones than the cutter mill.

@ Chatelot16: the branch drive system is hydraulic, so it is possible to finely adjust the absorption speed of the shredder. But we can not do what we want, because on this speed and that of the knives depends the thickness (essentially, because it is also necessary to take into account the edge of the blades) of the plates obtained.
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by chatelot16 » 07/12/08, 22:15

I really do not see the usefulness of the hydraulic advance, except to increase the price and lose power: a fixed transmission ratio between the cost and the drive always makes the same plate thickness: a belt with clutch by tensioning the belt will be enough for me
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by Did67 » 08/12/08, 12:19

Remundo wrote:
Well we can see that the shredded wood is exactly like the log: idea:

For the pellet, I find the figure a bit optimistic ...


It is not because we post a nice powerpoint that the data is reliable.

In this case, that the log and the plate, it is kif kif worries me. Except to take a log which comes from Lithuania ... Whether with 60 CV going slowly or with 120 CV going fast, it will be hard to make me believe that grinding is neutral in the CO² balance! And, as a first approximation, the rest is actually kif kif. Afterwards, you can quibble: count the chainsaw for the logs and not for the pads (assuming that these are usually lost falls ...), etc ...

And that the pellets, that is 2,7%, leaves me even more perplexed. Part of the answer is in the asterisk: "from dry sawdust" Knowing that dry wood has about 20% humidity (so sawdust too, and you do not often saw dry wood) and that the pellets are at 8% ....

For the rest, I still correct my a priori and therefore false statements:

1) For the same boiler (high-end, Hargassner), tested by an independent body, the emissions with platelets at 20% humidity and with pellets are not significantly different. I can give you the numbers. But it's probably the Rolls of burning platelets (and pellets) ... And I don't know what that gives with 30 or 40% platelets (at 20%, these are naturally dried platelets) .

2) On the following site, a powerpoint for a study - dating from 2005 - therefore today distorted with regard to costs and the economic part), including emissions, between the different possible heating modes. From left to right: natural gas, wood chips, fuel, cocke, pellets and liquid gas. The legends should help you find your way around. Detached house, in Austria (Linz - the plain), 150 m², renovated in 80 ...

http://www.brennstoffvergleich.at/beisp ... Altbau.pdf
Last edited by Did67 the 08 / 12 / 08, 12: 26, 1 edited once.
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by Did67 » 08/12/08, 12:25

chatelot16 wrote:I really don't see the need for hydraulic advance,


Is it not a question of security: it’s easy to have an instant stop in case an arm remains hung on a branch ... ???
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by Did67 » 08/12/08, 12:39

Remundo wrote:Hallo, ich bin zurück ...

German is a rich language, since I have just discovered that the Schnitzel is also called Hackgut ...

It is this document from Christophe who put me on the way:
Image
We find there Scheitholz and Hackgut, and pellet.

Gray energy of the fuel as a% of the final energy supplied.

Well we can see that the shredded wood is exactly like the log: idea:

For the pellet, I find the figure a bit optimistic ...


So just so that readers understand: this is the amount of energy, expressed in%, "upstream" of use. When the fuel, or the pellets, etc ... release 100 kcal in your home, we "blazed" the figure indicated before to bring you these 100!

So when it comes to fossil fuels (in black), if you want to estimate your CO² impact, you have to add the 100!. Like that, the scale is easily misleading !!!

After that, everything depends on the energy used. If the sawdust is dried from renewable energy, by cogeneration, this does not affect the eco-balance in CO². If it's with gas, it's something else ...

Example of a factory: they burn waste in a thermal power station, which supplies energy to the factory; the heat, which would be lost, is used to dry the sawdust ...

http://www.schellinger-kg.de/sonnenpell ... 9-set.html

So there, in CO², we probably stay at 2,7% ...

For the record, it's my supplier, yay !!!
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by Woodcutter » 08/12/08, 15:16

Did67 wrote:[...] 2) On the following site, a powerpoint for a study - dating from 2005 - therefore today distorted as regards costs and the economic part) comparative, emissions included, between the different possible modes of heating . From left to right: natural gas, wood chips, fuel oil, cocke, pellets and liquid gas. The legends should help you find your way around. Detached house, in Austria (Linz - the plain), 150 m², renovated in 80 ...

http://www.brennstoffvergleich.at/beisp ... Altbau.pdf
What are the interesting pages? Even if I understand German, it's a bit tedious to search ...
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