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Ultrasonic precision feeding device and method for micron-sized powder particles

A feeding device, ultrasonic technology, applied in conveyors, transportation and packaging, non-mechanical conveyors, etc., can solve the problems of inaccurate and unstable output, poor anti-interference of the device, easy agglomeration of powder particles, etc. The effect of smooth discharge, reduced installation accuracy requirements, and improved anti-interference

Active Publication Date: 2021-09-24
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problems of the present invention are: the existing ultrasonic vibration conveying method and device feeding device is discontinuous in feeding, the output is inaccurate and unstable, the powder particles are easy to agglomerate, the device structure is complex, and the device has poor anti-interference performance
[0009] The object of the present invention is to provide a micron-sized powder particle ultrasonic precision feeding method and device, to overcome the existing ultrasonic vibration conveying method and device in the micron-sized powder particle feeding process, the feeding discontinuity, the amount of output Problems such as imprecise instability, easy agglomeration of powder particles, complex device structure, and poor anti-interference performance of the device

Method used

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  • Ultrasonic precision feeding device and method for micron-sized powder particles
  • Ultrasonic precision feeding device and method for micron-sized powder particles
  • Ultrasonic precision feeding device and method for micron-sized powder particles

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Effect test

Embodiment 1

[0040] like figure 1 As shown, a micron-sized powder particle ultrasonic precision feeding device includes a micropowder pneumatic conveying pipeline 1, a cyclone feeding cylinder 2, a cyclone cylinder support 3, a shock-absorbing sealing support 4, a micropowder discharge nozzle 5, and a discharge nozzle support 6. Stacked ultrasonic transducer 7, base support 8 and plexiglass needle 9. The fine powder pneumatic conveying pipeline 1 is connected to the cyclone feeding cylinder 2; the cyclone cylinder bracket 3 is symmetrically installed on both sides of the cyclone feeding cylinder 2, and the upper part of the cyclone cylinder bracket 3 and the cyclone feeding cylinder 2 also have ribs to increase stability The damping and sealing bracket 4 is installed at the junction of the micropowder discharge nozzle 5 and the cyclone feed cylinder 2; the bottom end of the cyclone feed cylinder 2 extends into the inner cavity of the micropowder discharge nozzle 5; the micropowder discharg...

Embodiment 2

[0046] The present embodiment is the feeding method of the feeding device in embodiment 1, comprising the following steps:

[0047] Step 1: Turn on the feeding device. Use the suspension pneumatic conveying method to send the micropowder into the cyclone feeding cylinder 2 through the micropowder pneumatic conveying pipeline 1, the airflow with the micropowder passes through the air inlet 210, enters the cyclone feeding cylinder 2 along the tangential direction and forms a rotating airflow on its inner wall, carrying The air finally leaves from the top air outlet 220, and the micropowder particles roll down into the inner cavity of the micropowder discharge nozzle 5 along the inner wall of the cyclone feeding cylinder 2.

[0048] Step 2: Observe the plexiglass needle 9 and wait for the fine powder to fall continuously. During the falling process of the micropowder, the friction between the particles, the friction between the particle and the inner wall of the needle, and the ...

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Abstract

A method and device for ultrasonically precise feeding of micron-sized powder particles belong to the technical field of micron-sized powder delivery. Ultrasonic precision feeding device for micron-sized powder particles includes: micro-powder pneumatic conveying pipeline, cyclone feeding cylinder, cyclone cylinder bracket, shock-absorbing sealing bracket, micro-powder discharge nozzle, discharge nozzle bracket, foundation bracket, plexiglass needle, stack type An ultrasonic transducer and an ultrasonic driving signal source. The precise feeding device for micron-sized particles of the present invention can meet the requirements of micron-sized powder particles, continuous, and precise feeding, and solves the problems of discontinuous feeding, inaccurate and unstable output, and problems existing in current micron-sized powder feeding devices. The powder particles are easy to agglomerate, the device structure is complex, and the device has poor anti-interference performance, which can effectively improve the accuracy and stability of the powder feeding amount, and significantly improve the feeding efficiency of the micro powder particles.

Description

technical field [0001] The invention belongs to the technical field of powder conveying, and in particular relates to an ultrasonic precision feeding device and method for micron-sized powder particles. Background technique [0002] Powder conveying is a key process step in powder processing. Micron-sized powders have important uses in biopharmaceuticals, food processing, 3D printing, new energy batteries, national defense and military and other fields. In the relevant process, it is necessary to ensure the accuracy and stability of the feeding amount of powder particles, but micron-sized powder particles have a large specific surface area, high surface activity, and particles are prone to agglomeration, which makes it difficult to accurately feed micron-sized particles . In the field of powder conveying, common methods include pneumatic conveying, hydraulic conveying, ultrasonic vibration conveying, etc. The pneumatic conveying method realizes the transportation of bulk ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G54/00
CPCB65G54/00
Inventor 刘汇洋俞建峰赵志鹏黄龙辉张捷陆忆成王立海
Owner JIANGNAN UNIV
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