Plasma fly ash melting device and use method thereof

Abstract

The invention discloses a plasma fly ash melting device and a using method thereof, and relates to the technical field of garbage disposal technology.The plasma fly ash melting device comprises a melting furnace body, a melting furnace body shell and a containing cavity, a melting area is arranged at the bottom of the containing cavity, a feeding pipe and an air outlet pipe are arranged at the top of the containing cavity, and a plasma torch is arranged on the side wall of the melting area; a discharging pipe is arranged at the bottom of the melting area, an auger is rotationally arranged in the feeding pipe, a first driving source for driving the auger to rotate is arranged on the melting furnace body, and the containing cavity comprises an operation area and is provided with a shielding cover; the shielding cover comprises a plurality of shielding plates and a bulk material cavity, the shielding plates are connected with an air supply seat, and first vent holes are uniformly formed in one sides of the shielding plates; the shielding plate is slidably provided with an extension plate, second vent holes are evenly formed in the inner wall of the extension plate, and an adjusting mechanism is arranged in the melting furnace body. When the plasma fly ash melting furnace is used, the energy of the plasma torch can be reduced, and fly ash particles can be melted more thoroughly.

Description

technical field [0001] The present application relates to the technical field of waste treatment technology, in particular to a plasma fly ash melting device and its use method. Background technique [0002] The common treatment methods of garbage include incineration. Incineration can reduce the weight of garbage by 70% and reduce the volume by 90%. However, the secondary pollution caused by incineration is also very serious. The garbage after incineration includes a large amount of fly ash, which contains Heavy metals, a large amount of oxides and inorganic salts, and some toxic substances such as dioxins. The common way to deal with fly ash includes using a plasma fly ash melting device to decompose the fly ash into a molten glass-like substance after cooling. It can be reused in construction, municipal and other fields, and has a good treatment effect. [0003] refer to Figure 7 , is a kind of plasma fly ash melting furnace in the related art, comprises shell 11 and th...

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Problems solved by technology

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in this technology: the specific gravity of fly ash is light, and it will be granulated with additives before entering the accommodation chamber 2 to become fine particles. In the receiving bin above the furnace

The temperature of the section above the melting zone 21 of the housing chamber 2 is lower than that of the melting zone 21. When feeding, the fly ash particles are more concentrated when they fall and may accumulate or even pile up on the top of the melting zone 21. The inside of the piled part of the fly ash particles is heated more Less, resulting in the need to increase energy consumption or the phenomenon of incomplete melting

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