| 摘要 |
This invention pertains to a biomass processing system, and method of processing waste biomass, wherein one or more mixers mixes a bed of biomass material such as manure at substantially any and all locations in a defined length and width portion of the bed, in a dryer. Heated air percolates upwardly through the bed. Separation apparatus separates a relatively dryer fraction of the biomass material from the dryer. The separated finished product from the dryer is optionally fed to a boiler where the dried biomass material is burned. Heat of combustion from the boiler is used as dryer heat for drying the biomass feed material in the dryer. Excess heat is optionally used to produce steam, which powers a turbine, which powers an electrical generator. Residual ash from the combustion process comprises about 2% by weight of the solids content of e.g. a feed stream coming into the dryer. |
