Iron powder screening device

Abstract

The invention discloses an iron powder screening device, and relates to the field of iron powder production equipment. Through the iron powder screening device, the iron powder screening effect can beimproved. The iron powder screening device comprises a primary screen, a secondary screen and a conveyor assembly; the secondary screen is located in front of the primary screen; the conveyor assembly is located between the secondary screen and the primary screen and comprises a machine frame and a conveyor installed on the machine frame; the machine frame is connected with a rolling wheel capable of being turned and a supporting piece capable of going up and down, the supporting piece supports the conveyor assembly when descending, and the conveyor assembly is supported by the rolling wheelwhen the supporting piece ascends; the conveyor can conveys rough materials screened by the primary screen to the secondary screen; seed iron obtained after being screened by the primary screen is conveyed to the secondary screen to be screened again through the conveyor, fine powder in the seed iron can be screened out, the fine powder can be added into the iron powder screened by the primary screen, and accordingly, the iron powder yield is increased. The iron powder screening device can be applied to iron powder production line design and manufacturing and can also be used for transformingof an existing iron powder production line.

Description

technical field [0001] The invention relates to the field of iron powder production equipment, in particular to an iron powder screening device. Background technique [0002] The iron powder product requires that the metal iron content is above 88%, and the proportion under the 40-mesh sieve is above 95%. In order to ensure the content and particle size of metallic iron, screening equipment is used at the end of the iron powder drying cylinder to screen and dry materials. The screening equipment uses a 24-mesh screen. In actual production, it is found that the iron content of seed iron metal is 93-94%, and the under-sieve ratio of seed iron sieved by 40 mesh sieve is 15-30%, that is to say, the iron powder is not completely screened out during sieving, and the seed iron There is still a lot of iron powder in it. Due to the high price of iron powder and the low price of seed iron, the above situation will affect the economic benefits of iron powder production enterprises. ...

AI Technical Summary

Problems solved by technology

But first, the existing iron powder screening device is a vibrating screen, which automatically moves forward during the raw material screening process, and the screening time is inconvenient to adjust; second, the existing iron powder production equipment is continuous operation, and the iron powder drying cylinder is continuously conveyed Raw materials go to the iron powder screening device. If the screening time is increased, the raw materials will accumulate on the screening device, and the production cannot be carried out normally or the production efficiency of the entire iron powder production equipment will be affected.

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