Ultra-fine powder classifying device

A classification device and technology of ultra-fine powder, which are applied in solid separation, separation of solids from solids by air flow, chemical instruments and methods, etc., can solve the problems of low classification efficiency, easy to be polluted, unfavorable processing and use, etc. Achieve the effects of high classification accuracy and efficiency, less harm to human health, and convenient collection and recycling

Inactive Publication Date: 2015-11-04
BENGBU SILICON BASED MATERIALS IND TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the large specific surface area and surface energy of ultrafine powder, it is easy to agglomerate. The traditional airflow classification and sieving classification are difficult to achieve the purpose of classification, and the classification efficiency is low, the classification accuracy is poor, and it is easy to be polluted, etc.
Water flow classification can achieve the purpose of ultrafine powder classification to a certain extent, but there are many use restrictions, and the powder after classification is easy to harden when dried, which is not conducive to later processing and use

Method used

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Embodiment Construction

[0013] Such as figure 1 As shown, the present invention provides a kind of superfine powder classification device, which is formed by connecting three dispersion chambers 1 in series through the pipeline 5, the outlet of the former stage dispersion chamber is connected with the entrance of the latter stage dispersion chamber, and each dispersion chamber is provided with There is a pressure gauge 10, the feed port of the first dispersion chamber is externally connected to a feed / air pipe 2, the feed / air pipe 2 is equipped with a feed hopper 8, the inlet of the feed / air pipe is connected to the air compressor 6, and the dispersion chamber 1 Use a plastic bottle with a diameter of φ=150cm, the lower part of the bottle body is a funnel-shaped collection tank 4, and the bottom of the collection tank 4 is provided with a discharge valve 3. The pipeline adopts a plastic pipe with a diameter of φ=5cm, and the last dispersion chamber passes through The pipeline is connected with a dust...

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Abstract

The invention discloses an ultra-fine powder classifying device. The ultra-fine powder classifying device is formed by connecting two or more scattering chambers in series through pipelines. Discharge valves are arranged at the bottoms of the scattering chambers. An outlet of the scattering chamber in the former stage is connected with an inlet of the scattering chamber in the later stage. A material/gas feeding port of the first scattering chamber is externally connected with a material/gas feeding pipe. The last scattering chamber is connected with a dust collector through a pipeline. A feeding hopper is arranged on the material/gas feeding pipe. An air inlet of the material/gas feeding pipe is connected with an air compressor. The ultra-fine powder classifying device is simple in structure, convenient to overhaul and maintain and high in classification accuracy and efficiency, and powder is fully scattered in the scattering chambers under the effect of compressed air; the device forms a closed space, the risks to human health are small, and the environmental pollution is low; collecting openings are formed in the lower ends of the scattering chambers, and the powder is conveniently collected and recycled; the scattering chambers and the pipelines are plastic parts, and no pollution is generated to the powder; and the collected powder can be directly used without being treated, and the production efficiency is effectively improved.

Description

technical field [0001] The invention relates to a classifying device for ultrafine powder, in particular to an airflow classifying device. Background technique [0002] Ultrafine powder is used in almost all industries of the national economy. It is the basis for transforming and promoting the development of emerging industries such as paint and coatings, information recording media, fine ceramics, electronic technology, new materials and biotechnology, and is the starting point of modern high-tech. [0003] However, due to the large specific surface area and surface energy of ultrafine powder, it is easy to agglomerate. Traditional airflow classification and sieving classification are difficult to achieve the purpose of classification, and the classification efficiency is low, the classification accuracy is poor, and it is easy to be polluted. Water flow classification can achieve the purpose of ultrafine powder classification to a certain extent, but there are many use res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B9/02B07B7/01
Inventor 贾再辉周建民曹宇
Owner BENGBU SILICON BASED MATERIALS IND TECH RES INST
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