A household garbage incineration fly ash treatment device

Abstract

This utility model relates to the field of waste incineration technology, specifically to a fly ash treatment device for municipal solid waste incineration. To address the technical problem that large fly ash particles entering the filter bag before being fully cooled can easily lead to bag combustion and pose a safety hazard, the device includes: a dust collection box, a curved panel, a limiting arc strip, an input shaft, a sliding cylinder, a filter frame, an air duct, an internal pressure maintaining mechanism, an air injection pipe, a support, an air pressure sensor, a solenoid valve, an ash hopper, and a ball valve. Fly ash is directly injected through the air duct into the wire mesh filter. Under the pressure inside the input shaft, the wire mesh filter is fully extended, and large fly ash particles are blocked. Then, as the filter frame contacts the limiting arc strip, the wire mesh filter retracts and enters the sliding cylinder. The large fly ash particles are scraped off by the metal brush and fall into the dust collection box, completing the collection. When the air pressure in the cavity inside the input shaft decreases, the controller controls the solenoid valve and the air injection fan to open synchronously, maintaining the air pressure within a specified range, and the wire mesh filter expands and contracts stably.

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