Method for collecting centrifugal atomization powder with different particle sizes
A technology of centrifugal atomization and powder, which is applied in the direction of centrifuges, etc., can solve the problems of restricting the application of air flow classification process and increasing the difficulty of operation, and achieve the effect of reducing oxygen content, reducing burden and easy components
Active Publication Date: 2013-07-31
云南锡业研究院有限公司研究设计院
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Problems solved by technology
At the same time, the air classifier has strict requirements on the control of parameters such as air flow and feeding volume, which makes the operation more difficult.
The above factors limit the application of the airflow classification process, generally used as pretreatment before classification, not as the main equipment for screening
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[0020] See attached figure 1 , the entire powder collection process is carried out in the airtight atomization barrel 1, and the bottom of the conical barrel wall 7 of the atomization barrel 1 is equipped with a valve 8. The dispersing disc 3 is driven by a motor, and the metal liquid droplets thrown out from the dispersing disc 3 are shaped into metal powder with a certain particle size after shrinking and cooling during the falling process. The formed powder is subjected to the action of inertia, and falls to the conical barrel wall 7, the outer ring powder collecting plate 5 and the inner ring powder collecting plate 4 respectively at the designated positions. The inner radius of the ring of the outer ring powder collecting disc 5 is 86 cm, and the outer radius is 150 cm; the inner radius of the ring of the inner ring powder collecting disc 4 is 16 cm, and the outer radius is 80 cm; The height difference between the disc 3 and each powder collecting disc is 18-22 cm. The ...
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Abstract
The invention discloses a method for collecting centrifugal atomization powder with different particle sizes, and relates to a method for collecting powder in a technology of a centrifugal atomization system, in particular to a method for collecting the powder with different particle sizes in different areas of an atomizing barrel. The method adopts the technical scheme as follows: a power-driven dispersing plate is arranged in the center of the inner upper part of the atomizing barrel; two disc-shaped powder collecting plates concentric with the dispersing plate are arranged below the dispersing plate; each powder collecting plate has a split hinged structure; a metal solution is dripped onto the dispersing plate; after shrinkage and solidification, the metal solution naturally falls down onto each powder collecting plate and a cone-shaped barrel wall at the lower part of the atomizing barrel; a valve at the bottom of the atomizing barrel is opened; all powder on the cone-shaped barrel wall falls into a powder collecting barrel 1; an outer powder collecting plate is downwardly rotated and a powder collecting barrel 2 is connected to the bottom of the atomizing barrel; and finally, an inner powder collecting plate is rotated downwards and a powder collecting barrel 3 is connected to the bottom of the atomizing barrel; therefore, the powder with different particle sizes can be collected respectively. The sizes of the powder are centralized, so that the screening load is reduced, the powder quality can be ensured, the screening precision and the screening efficiency are improved, and thus the cost is low.
Description
technical field [0001] The invention belongs to a powder collection method in a centrifugal atomization powder making system process, in particular to a method for collecting powders with different particle sizes in different regions in an atomization barrel. the Background technique [0002] In the current centrifugal atomization pulverization system process, the product powder that meets a specific particle size range accounts for about 70% of the original powder, and the coarse powder and fine powder are removed by sieving. The powder collection in the atomization barrel adopts the method of direct collection, mainly through the conical bottom of the atomization barrel located under the atomizer, all the naturally falling powder is mixed and concentrated at the discharge port, and the accumulated powder is in the discharge port when discharging. Fall into the container under the action of gravity. [0003] This method allows the originally dispersed coarse and fine powd...
Claims
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IPC IPC(8): B04B5/00
Inventor 李祥尹久发马宇王友帅普有福郭绍雄伍美珍
Owner 云南锡业研究院有限公司研究设计院