Anti-clogging powder feeding device and method for low bulk ratio metal powder products

Abstract

The invention discloses an anti-blocking powder discharging device and method for low-loose-density metal powder products. The device comprises a decomposer, a middle bin and a produced powder material bin, and the decomposer, the middle bin and the produced powder material bin are sequentially connected from top to bottom; the tops of the middle bin and the produced powder material bin are each provided with an exhausting port; the bottom of the middle bin is provided with a discharging valve; the device further comprises a decomposed gas dust remover, a disinfecting replacement gas dust remover and a dust collecting powder material bin; an inlet of the decomposed gas dust remover is connected with the exhausting port of the middle bin and the exhausting port of the produced powder material bin through pipelines; the top of the dust collecting powder material bin is provided with a dust collecting port and a disinfecting port; an inlet of the disinfecting replacement gas dust remover is connected with the exhausting port of the produced powder material bin and the disinfecting port through pipelines; and the dust collecting port is connected with an outlet of the decomposed gas dust remover and an outlet of the disinfecting replacement gas dust remover through pipelines. The device and method are good in powder discharging smoothness and high in powder product quality.

Description

technical field [0001] The invention belongs to the technical field of carbonyl metallurgy production, and in particular relates to an anti-clogging powder feeding device and method for metal powder products with low bulk ratio. Background technique [0002] In the process of decomposing and producing carbonyls such as nickel carbonyl and iron carbonyl, metal powder products with low bulk ratio are prone to blockage between the intermediate bin and the material bin, and it is necessary to repeatedly knock the bin body and use the material bin to inflate and pressurize the powder. Blowing or enlarging the feeding screw to rotate the feeding, etc., but these methods will inevitably have certain safety hazards or have a greater impact on the stable production of the system and the stability of product quality. At the same time, due to the large difference in performance between the fine particles collected by the dust collector and the production powder, the stability of the pr...

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Problems solved by technology

[0002] In the process of decomposing and producing carbonyls such as nickel carbonyl and iron carbonyl, metal powder products with low bulk ratio are prone to blockage between the intermediate bin and the material bin, and it is necessary to repeatedly knock the bin body and use the material bin to inflate and pressurize the powder. Blowing or increasing the feeding screw to rotate the feeding, etc., but these methods will inevitably have certain safety hazards or have a greater impact on the stable production of the system and the stability of product quality.

At the same time, due to the large difference in the performance of the fine particles collected by the dust collector and the production powder, the stability of the product quality of the production powder will be affected when the same material bin is used for receiving and processing

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