Safe dust removal and collection device for overspray powder of spray-formed aluminum alloy

Abstract

The invention discloses a safe dust removal and collection device for overspray powder of a spray-formed aluminum alloy, and the device comprises an overspray powder dust removal structure, a transfer structure and a dust collection structure; the overspray powder dust removal structure comprises a first-stage dust remover and a second-stage dust remover which are connected in sequence, and an ash hopper is installed at the lower end of the first-stage dust remover; precipitated aluminum alloy over-spray powder generated by filtering of the first-stage dust remover can fall into the ash bucket, the transfer structure comprises a spiral powder feeding pipe, a spiral mandrel is axially arranged in the spiral powder feeding pipe, one end of the spiral mandrel is connected with a spiral motor, and the dust collection structure comprises a powder collection chamber, an anti-explosion vibrating screen, a canning platform and an ash containing tank. The anti-explosion vibrating screen, the canning platform and the ash containing tank are all located in the powder collection chamber, and the canning platform comprises a platform plate, a rotating motor and a canning station. According to the invention, safe dust removal and clean collection of the aluminum alloy over-spraying powder can be realized.

Description

technical field [0001] The invention belongs to the technical field of spray forming, and in particular relates to a process for dedusting the overspray powder produced in the production process of spray formed aluminum alloys to meet safety and emission requirements, and further collecting the overspray powder for reprocessing of the overspray powder. Value-added utilization of processing resources provides cleaning powder. Background technique [0002] The spray forming process uses high-pressure inert gas to prepare the alloy melt into an ingot from a liquid state through atomization and deposition in one step. The aluminum alloy is heated into a melt in an intermediate frequency induction furnace. The melt is poured into the leak bag through the pipetting tank, and is broken and atomized into fine droplets by the high momentum inert gas (nitrogen) through the catheter tube, and is continuously mixed with the airflow during the flight. Heat exchange and rapid cooling bet...

AI Technical Summary

Problems solved by technology

In the existing aluminum alloy spray forming process, there is a lack of safe and standardized treatment of dust removal and collection of overspray powder, and it does not meet the relevant explosion-proof specifications for dust treatment, and there is a large potential safety hazard of dust explosion

In addition, in the existing aluminum alloy spray forming production process, the collection of overspray powder is manual operation, which is easy to form dust or dust cloud, and the powder is easy to oxidize. The dust explosion-proof and dust oxidation technologies in the powder collection process are not considered. measure

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