Biomass incinerator
OwnerFranz Berthillerinventor
Life of this patent
Estimating the term…
Abstract
A compact incinerator for biomass has an upright combustion chamber coaxially surrounded by a passage through which the biomass is fed from a separator in which the primary air is separated from the biomass, to the combustion chamber. An afterburner chamber surrounds this shaft so that flue gases from the combustion chamber can pass through the shaft and be filtered by the biomass while heating the biomass before afterburning is effected in the afterburner chamber. The primary air from the separator is preheated in a preheater in indirect heating exchange by the flue gas in the same coaxial apparatus which also includes, coaxially with the combustion chamber, a flue gas/solids separator for removing solids from the flue gas before it enters the preheater.
Claims23
An incinerator for a biomass such as straw or wine-pressing residue, comprising:
- a vertical biomass feed shaft;
- an air/solids separator for separating pneumatically conveyed biomass from primary combustion air, communicating with one end of said shaft for delivering biomass freed from conveying air thereto;
- means forming a combustion chamber communicating with the opposite end of said shaft for receiving biomass therefrom and burning said biomass in said combustion chamber with at least a portion of said primary air to form a flue gas;
- means connected to said combustion chamber and forming a direct lateral opening from the combustion chamber into said shaft for passing said flue gas transversely through said shaft into contact with biomass therein, thereby preheating said biomass in said shaft and filtering said flue gas by a filter action of said biomass;
- and
- means forming an afterburner chamber receiving said flue gas after it has traversed said shaft for afterburning combustible components in said flue gas, with air at least in part received from said separator.
An incinerator for a biomass such as straw or wine-pressing residue, comprising:
- a vertical biomass feed shaft;
- an air/solids separator for separating pneumatically conveyed biomass from primary combustion air, communicating with one end of said shaft for delivering biomass freed from conveying air thereto;
- means forming a combustion chamber communicating with the opposite end of said shaft for receiving biomass therefrom and burning said biomass in said combustion chamber with at least a portion of said primary air to form a flue gas;
- means connected to said combustion chamber for passing said flue gas transversely through said shaft into contact with biomass therein, thereby preheating said biomass in said shaft and filtering said flue gas by a filter action of said biomass;
- means forming an afterburner chamber receiving said flue gas after it has traversed said shaft for afterburning combustible components in said flue gas, with air at least in part received from said separator;
- a preheater for said portion of said primary air connected between said separator and said combustion chamber;
- and
- a flue gas/solids separator receiving flue gases from said afterburner chamber and feeding same to said preheater for heating said portion of said primary air therein.
Dependencies are inferred from the claim text.