Imaginary Brushwood harvester/ bundler?

[caledonian bob]

The John Deere brash bailer has been about for a few years now. Used to see bales it produced stacked on clear fell sites about Scotland but haven't seen so many recently.

[cessna]

Many thanks for all your replies,may be a good idea in theory "BUT",if the numbers do not stack up it is a complete no ,no.

[renewablejohn]

Quality any good for biomass?

I know its a good chipper on normal sized wood but the reason I ask we have received a lot of rubbish chip from brash so wondered what the heizo was like chipping it.

 

 

You need to accept brash chip needs to be graded with the fines taken out. :001_huh:Fortunately we have a market for the fines in our briquette production.

[renewablejohn]

I thought it significant that there was no brash recovery equipment at the APF this year although plenty of flails to pulverize brash into the ground.

[renewablejohn]

Many thanks for all your replies,may be a good idea in theory "BUT",if the numbers do not stack up it is a complete no ,no.

 

The numbers can stack up but you need to know what the niche market is for your brash product.

[ben_inthewoods]

The John Deere brash bailer has been about for a few years now. Used to see bales it produced stacked on clear fell sites about Scotland but haven't seen so many recently.

 

Is there not a problem with the ash content of brash bales?

[renewablejohn]

Is there not a problem with the ash content of brash bales?

 

I think there would be. Our briquettes made from brash certainly have a higher ash content due to the bigger percentage of bark. Still a lot less ash than briquettes made from waste paper pulp.

[biggarlogs]

i think the problem was too many rocks and other debris.the chippers didnt like them and so power stations have gone off the idea of brash balesbecause of this.another brilliant idea to fail .jake

[cornish wood burner]

You need to accept brash chip needs to be graded with the fines taken out. :001_huh:Fortunately we have a market for the fines in our briquette production.

 

Fines are not our and I suspect most other medium sized biomass users problem. The main problem is long twigs that block the sensor sight from sender to reciever and give a false "the auger is full signal" If this can be overcome we would be happy to take a large quantity of brash chip. We use around 3000 tons per year so a reasonable percentage of that could be accepted. The drier the better obviously which would be reflected in the price.

[renewablejohn]

Fines are not our and I suspect most other medium sized biomass users problem. The main problem is long twigs that block the sensor sight from sender to reciever and give a false "the auger is full signal" If this can be overcome we would be happy to take a large quantity of brash chip. We use around 3000 tons per year so a reasonable percentage of that could be accepted. The drier the better obviously which would be reflected in the price.

 

If its log twigs your worried about then get a heizohack. Never ever had a problem of twigs although I do use a G30 screen rather than a G50. As I say fines are a particular problem I have with a customer using a gasifier but they can be screened out. As for moisture content I like to achieve below 20% although for the briquettes it needs to below 12%.