A simplified submerged chain conveyor system for handling ash produced by large-scale coal fired boilers. The system incorporates an endless chain conveyor system moving a coal/ash aqueous mixture within a conveyor segment having a hydraulically closed duct. The system is adapted for retrofit applications of existing coal-fired boiler installations. In each embodiment the chain conveyor elevates the aqueous ash solution to dewater the ash. In several embodiments the boiler ash hopper is partially flooded with water and the system moves the ash mixture through a water column to the dewatering section. In one embodiment the ash mixture is not submersed but is subjected to water sprays before reaching the dewatering section. Great flexibility is provided in locating and positioning the conveyor system. One unit may be implemented to provide ash handling for multiple boilers. Embodiments are described operable in continuous or batch mode processes.

A system and mechanism for bottom ash flow turndown from a hopper, through a crusher, and to a conveyor, the system including a fixed flow restrictor and a variable speed side discharge crusher to modulate bottom ash flow in the absence of gate or valve flow from a hopper, the conveyor providing a signal corresponding to an overfeed condition to enable a controller to operate the crusher and/or the conveyor to eliminate overfeed conditions.

A process for reforming the fly ash, including the heating step that heats a raw fly ash powder containing the unburned carbon at a temperature of 780 to 1000° C. to decrease the amount of the unburned carbon contained in the raw fly ash powder; the classifying step that introduces the heat-treated fly ash containing the unburned carbon in decreased amounts obtained through the heating step into a classifying apparatus in the state of being heated at a high temperature so as to separate the fly ash into a coarse powder and a fine powder; the fine powder recovering step that recovers the fine powder of the heat-treated fly ash obtained through the classifying step by using a dust-collecting apparatus; and the milling step that mills the coarse powder of the heat-treated fly ash obtained through the classifying step until a 45 μm sieve residue becomes not more than 34% by mass, and then recovers the milled powder.

A process for reforming the fly ash, including the heating step that heats a raw fly ash powder containing the unburned carbon at a temperature of 780 to 1000 C. to decrease the amount of the unburned carbon contained in the raw fly ash powder; the classifying step that introduces the heat-treated fly ash containing the unburned carbon in decreased amounts obtained through the heating step into a classifying apparatus in the state of being heated at a high temperature so as to separate the fly ash into a coarse powder and a fine powder; the fine powder recovering step that recovers the fine powder of the heat-treated fly ash obtained through the classifying step by using a dust-collecting apparatus; and the milling step that mills the coarse powder of the heat-treated fly ash obtained through the classifying step until a 45 m sieve residue becomes not more than 34% by mass, and then recovers the milled powder.

Devices, systems, and methods for separating incinerator combined ash are described. The devices, systems, and methods include a fines process that utilizes water or other liquid in the separation of portions of the incinerator combined ash.

A system and mechanism for bottom ash flow turndown from a hopper, through a crusher, and to a conveyor, the system including a fixed flow restrictor and a variable speed side discharge crusher to modulate bottom ash flow in the absence of gate or valve flow from a hopper.

A combustion installation has a combustion chamber for the combustion of a fuel, wherein combustion residues of the fuel combusted in the combustion chamber are fed, via an outlet of the combustion chamber, to a crusher for the purpose of comminuting the combustion residues, and at least one interfering element removal means is arranged in a conveyor line for the combustion residues, by means of which interfering elements that are conveyed in the combustion residues but cannot be comminuted by the crusher can be removed via an interfering element removal opening.

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.

An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.

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.