Here is a Saw Dust burner. Almost all Saw Mills had a Saw Dust Burner to dispose of Saw dust by burning, mostly before the 1950s. Most model Saw Mills like the Lionel 464 do not have Saw Dust Burners.
Homemade Sawdust Burner next to the Lionel 464 Saw Mill
Sawdust can be transported from the Saw Mill to the Sawdust Burner is several ways, A conveyor belt or screw can be used as well as a pneumatic pipe is another way. Mine uses a MAC covered belt conveyor.
Charlie