A mixer for recirculating ash from solid fuel combustion with hydrated lime and water and to feed the mixture into a desulfurization reactor. The mixer includes a housing having a front wall, two outer vertical sidewalls, a rear wall, a top, and a bottom, the top includes a feed chute configured for the entry and addition of product to the mixer, and the front wall includes an opening for the mixture of product to exit. The mixer also includes a rotatable vertical shaft having an impeller, the impeller having a plurality of blades disposed on the vertical shaft in the same horizontal plane and distributed equidistantly about the circumference of the vertical shaft. The mixer also includes a vertical wall disposed within the housing forming a mixing region and a feeding region that is operably connected to the opening of the front wall.

A mixer for recirculating ash from solid fuel combustion with hydrated lime and water and to feed the mixture into a desulfurization reactor. The mixer includes a housing having a front wall, two outer vertical sidewalls, a rear wall, a top, and a bottom, the top includes a feed chute configured for the entry and addition of product to the mixer, and the front wall includes an opening for the mixture of product to exit. The mixer also includes a rotatable vertical shaft having an impeller, the impeller having a plurality of blades disposed on the vertical shaft in the same horizontal plane and distributed equidistantly about the circumference of the vertical shaft. The mixer also includes a vertical wall disposed within the housing forming a mixing region and a feeding region that is operably connected to the opening of the front wall.

The present disclosure discloses a garbage incineration device for garbage disposal, relating to the technical field of garbage disposal, in particular to a stirring device, a conveying device and a combustion device. The bottom portion of one side of the stirring device is fixedly mounted with a conveying device, and one of the tops of the conveying device The side is fixedly equipped with a combustion device, the stirring device comprises a mixer, and a storage box is fixedly installed in a middle portion of the top portion of the mixer, and a drainage pipe is fixedly mounted on one side of the bottom portion of the storage box, and a funnel is fixedly mounted on one side of the bottom portion of the mixer. The garbage incineration device for garbage disposal can make the garbage burn more fully when incinerated.

The present disclosure discloses a garbage incineration device for garbage disposal, relating to the technical field of garbage disposal, in particular to a stirring device, a conveying device and a combustion device. The bottom portion of one side of the stirring device is fixedly mounted with a conveying device, and one of the tops of the conveying device The side is fixedly equipped with a combustion device, the stirring device comprises a mixer, and a storage box is fixedly installed in a middle portion of the top portion of the mixer, and a drainage pipe is fixedly mounted on one side of the bottom portion of the storage box, and a funnel is fixedly mounted on one side of the bottom portion of the mixer. The garbage incineration device for garbage disposal can make the garbage burn more fully when incinerated.

The present invention discloses a resource recovery method and a resource recovery system of desulfurized ash. The resource recovery method comprises: washing desulfurized ash with water, and performing solid-liquid separation to obtain solid residues rich in calcium sulfite and calcium sulfate and a solution rich in calcium hydroxide; preparing the solution into desulfurized slurry; and roasting the solid residues under the action of a reducing agent to obtain flue gas rich in sulfur dioxide and residues rich in calcium oxide. Therefore, the recovery of sulfur and calcium in the desulfurized ash is realized, and no solid waste, liquid waste, gas waste, etc. are produced in the process.

The present invention provides a char collector (1) for a pyrolysis system (2), the pyrolysis system (2) featuring a pyrolysis reactor (17) comprising a hot char outlet (3), the char collector comprises a container (4) and a longitudinal char conveyor unit (5), and the container (4) comprises a chamber (6), a first inlet (7) connectable to the hot char outlet (3) and a first outlet (8), wherein the first inlet (7) is arranged in an upper portion of the chamber (6) and the first outlet (8) is arranged in a lower portion of the chamber (6); and the char conveyor unit (5) comprises a first end section (9) connected to the first outlet (8), a second end section (10) featuring a second outlet (11) for cooled char and a conveying mechanism (12) configured to transport char from the first end section (9) to the second outlet (11) during use; wherein the second outlet (11) is at a level above the first outlet (8), such that a gas trap is formed between the first inlet (7) and the second outlet (11) when the chamber (6) is filled with water up to a level above the first outlet (8) during use.

A method for processing ash from waste incineration plants by wet classification includes mixing the ash with a liquid in a mixing hopper. After screening, the mixture is fed to a first classifying stage, including an upflow classifier and an upstream hydrocyclone, where it is separated into a good fraction and a residual fraction. The residual fraction is drawn off as a suspension on an upper side of a fluidized bed of the upflow classifier. The good fraction is drawn off on an underside of the fluidized bed. A pass through fraction is fed back into the hydrocyclone installation and a material flow containing particles which are smaller than a separation particle size is separated as cyclone overflow. The cyclone overflow is separated in a second classifying stage into a fine particle mineral fraction and a residue which has a grain size upper limit between 20 m and 50 m.

A rotary bottom ash regenerating (RBAR) system [100] comprises a cylindrical body [110] that receives ash [17] containing reactant particles [10] that are partially reacted limestone compounds having unreacted cores [13] from a furnace. Sensors [140] sense physical parameters within the cylindrical body [110]. A controller [170] receives the output of the sensors [140] and information indicating the amount of unreacted core [13] and causes a fluid actuator [135] to spray a proper amount of regeneration fluid regulator [135] from a plurality of spray nozzles [131] to different locations within the cylindrical body [110] to regulate the temperature and to cause the reactant particles [10] to have a require content of regeneration fluid. This causes the reactant particles [10] to be regenerated and reused. This results in a lower limestone costs and less overheating of ash handling systems.

A resource recovery method and a resource recovery system of desulfurized ash. The resource recovery method includes washing desulfurized ash with water, and performing solid-liquid separation to obtain solid residues rich in calcium sulfite and calcium sulfate and a solution rich in calcium hydroxide; preparing the solution into desulfurization slurry; and roasting the solid residues under the action of a reducing agent to obtain flue gas rich in sulfur dioxide and residues rich in calcium oxide. Therefore, the recovery of sulfur and calcium in the desulfurized ash is realized, and no solid waste, liquid waste, gas waste, etc. are produced in the process.