Nano-particle ultrasonic atomization and classification device and method

An ultrasonic atomization and nanoparticle technology, which is used in separation methods, chemical instruments and methods, injection devices, etc., can solve the problem that the flow rate of feed liquid and the ultrasonic atomization power of the transducer are not completely matched, and the droplets cannot be fully recovered. , low utilization rate of material and liquid, etc., to achieve the effect of improving the water mist adsorption flow field, improving the water mist collection rate and thorough recovery

Active Publication Date: 2020-07-17
JIANGNAN UNIV
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Problems solved by technology

[0006] The invention provides a nano Particle Ultrasonic Atomization Classification Device and Method

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  • Nano-particle ultrasonic atomization and classification device and method
  • Nano-particle ultrasonic atomization and classification device and method
  • Nano-particle ultrasonic atomization and classification device and method

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Embodiment 1

[0050] Such as figure 1 As shown, the present embodiment provides a nanoparticle ultrasonic atomization classification device, the device includes: ultrafine powder solution tank 1, feed pipe 2, ultrasonic atomization reaction tank 3, ultrasonic atomization device 4, blower Device 5, water mist collection tank 6, gas-liquid separation device 7, water mist collection pipe 8 and return pipe 9.

[0051] Such as figure 2 As shown, the top of the ultrafine powder solution tank 1 is provided with an ultrafine powder solution feed port 110, a bottom bubbling generator 120 is installed at the bottom, and a side bubbling generator 130 is installed in the middle through a rib structure 131; The feed pipe 2 is arranged on the side of the ultrafine powder solution tank 1, 20 to 30 cm lower than the top surface of the tank body, and the feed pipe 2 is provided with a feed flow valve 210 for controlling the feed flow rate; the return pipe 9 is installed on the outer wall of the ultrafine...

Embodiment 2

[0061] This embodiment provides a classification method of a nanoparticle ultrasonic atomization classification device, the specific process is as follows:

[0062] Step 1: close the feed flow valve 210, pour a uniformly mixed ultrafine powder suspension into the ultrafine powder solution tank 1, the mass concentration of the ultrafine powder suspension is 0.1% to 1%, and the particle The median particle size range is between 0.5 and 0.6 μm, open the feed flow valve 210 to the maximum flow rate to check whether the pipeline is unblocked and clean the pipeline, open the return flow valve 910 and the return pump 920 after 10 to 15 seconds, and check the return Is it normal;

[0063] Step 2: After confirming that the return material is normal, adjust the flow rate of the feed flow valve 210 to one-half of the maximum flow rate; turn on all the blowers 510 to continuously blow air to the ultrasonic atomization reaction tank 3, and at the same time, ventilate to the water mist deli...

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Abstract

The invention discloses a nano-particle ultrasonic atomization and classification device and method and belongs to the technical field of nano powder classification. The ultrasonic atomization and classification device comprises an ultrafine powder solution tank, a material inlet pipe, a ring-shaped feeding pipe, a variable cross section draining pipe, a material return pipe, an ultrasonic atomization reaction tank, an ultrasonic atomization device, an air blowing device, a water mist collecting pipe, a gas-liquid separation device and a water mist collecting tank. By means of the nano-particle ultrasonic atomization and classification device, the classification precision meets the classification requirement of nanoscale particles, the problems that a current nano powder classification device has the problems that the material liquid utilization rate is low, the material liquid input amount is not matched with the atomization amount of a transducer, the material liquid input position is not matched with the position of the transducer, and water mist collection is insufficient are solved, and the classification precision, the material liquid utilization rate and the classification efficiency can be effectively improved.

Description

technical field [0001] The invention relates to a nano particle ultrasonic atomization grading device and a method thereof, belonging to the technical field of powder grading. Background technique [0002] Powder particle classification is one of the key process steps in powder processing. The demand for nano-scale powder preparation continues to increase, and the graded particle size has developed from macro-scale to micro-scale and nano-scale. The particle size of nanopowder ranges from 1 to 100nm, and it has the characteristics of high surface activity and low bulk density. It is widely used in biochemistry, nanomedicine, semiconductor material preparation, organic printing, etc., and has good commercial application value. The particle size of powder prepared by mechanical ultrafine grinding method is usually between nanometer and submicron. For example, after several hours of grinding, the particle size of silicon powder is usually between 0.05 and 1 μm. If you want to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B5/00B03B11/00B05B17/06B01D45/00
CPCB01D45/00B03B5/00B03B11/00B05B17/06B05B17/0607B05B17/0653B05B17/0676
Inventor 刘汇洋俞建峰黄龙辉王立海陆忆成赵志鹏张捷
Owner JIANGNAN UNIV
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