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Airflow centrifugal classification device for flake metal fine powder and ultrafine particles and debris

A technology of metal micropowder and centrifugal classification, which is applied in centrifuges and other directions, to achieve the effects of good product quality consistency, high production efficiency, and high scale rate

Active Publication Date: 2016-05-25
江苏宝纳电磁新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device can achieve the successful separation of particles with the same density and different particle sizes or granular powders with different densities and similar particle sizes, but it cannot do anything for the separation of flake powders with the same density from fine particles, chips or debris

Method used

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  • Airflow centrifugal classification device for flake metal fine powder and ultrafine particles and debris

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Embodiment

[0013] Embodiment: a kind of air flow centrifugal classification device of flake metal micropowder and extremely fine particles, debris, such as figure 1 As shown, it includes main shaft 1, discharge chute 2-2, finished product outlet 2-1, base 3, air intake guide plate 4, annular damping plate 4-1, shaft sleeve 5, leaf dust removal pipe 7, cover body 8 , air inlet 8-1, feed inlet 9, fine powder collector 10, finished product collector 11 and the swirling chamber; The top of 8 is feed inlet 9. The base and the bushing 5 are set on the main shaft 1, and the main shaft 1 passes through the center of the revolving cavity to drive the impeller 6 to rotate at high speed in the cover body 8. Along the rotating surface of the impeller 6, a dust removal pipeline 7 connected to the dust collector is opened at a place on the side wall of the whirling chamber, and one section of the dust removal pipeline 7 is connected to the fine powder dust collector. A discharge trough 2-2 is provid...

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Abstract

The invention discloses an airflow centrifugal classification device for flaky metal micro-powder and ultrafine particles and fragments. The device comprises a rotary cavity into which airflow is introduced from bottom to top, a main shaft, an impeller, a discharge opening and a dedusting pipeline; the edge of the bottom surface of the rotary cavity is provided with the discharge opening; a cover body of which the top is provided with a feeding hole, is arranged above the rotary cavity; the impeller rotates in the cover body of the rotary cavity through the main shaft; the side wall of the rotary cavity is provided with the dedusting pipeline connected with a dust remover along the rotary surface of the impeller. By utilizing different resistances of the airflow to the flaky metal micro-powder and the ultrafine particles and fragments, the influence of the airflow resistance to the motion trail of the flaky powder is increased, so that the flaky metal micro-powder and impurities are successfully separated, and the aim of quick classification is fulfilled; moreover, continuous mass production can be carried out, the production efficiency is high, the flake forming rate of the separated flaky metal soft magnetic micro-powder is high, and the quality consistency of finished products is good.

Description

technical field [0001] The invention relates to a centrifugal separation device, in particular to a centrifugal classification device for fine metal powder. Background technique [0002] With the advancement of science and technology and electronic information technology, near-field communication technology (NFC) has developed rapidly in recent years, and the Internet of Things is rapidly becoming popular all over the world. Radio frequency identification technology (RFID) is one of the four core technologies of the Internet of Things. It is the core link to realize the identification of Internet of Things items. The radio frequency identification technology must use a scaly metal soft magnetic powder and resin with a thickness of less than 1 μm. Flexible magnetic sheets made of adhesives such as [0003] In the manufacturing process of flake metal soft magnetic powder, because each metal particle is impacted by mechanical force and the probability of being impacted is diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B04B5/00B04B15/00
Inventor 瞿卫俊丁勇蔡鑫磊阳开新
Owner 江苏宝纳电磁新材料有限公司
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