Device for continuously inactivating metal nano powder
A technology of metal nano powder and scraper, which is applied in the field of metal nano powder continuous passivation device, can solve the problems of unfavorable preparation, high activity of metal nano powder, affecting use and development, etc., and achieves simple operation, reasonable device structure, convenient The effect of storage and transportation
Inactive Publication Date: 2011-06-15
陕西安康三航纳米科技股份有限公司
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Problems solved by technology
[0006] The purpose of the present invention is to solve the shortcomings of certain metal nanopowders in the prior art that are very prone to oxidation and other reactions due to their high activity, which is not conducive to their preparation, storage, transportation and use, and affects their use and development. A continuous passivation device for metal nanopowder, which can be used for scientific research in the laboratory and is also suitable for passivation of metal nanopowder in industrial production
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[0018] As shown in Figure 1:
[0019] The passivation device includes a feed bin 1, a passivation bin 2, a drive motor 3, an air inlet pipe 4, an air outlet pipe 5, a vacuum gauge 6, a vacuum valve 7, an inflation valve 8, a pipeline 9, a water cooling system 10, a high-pressure fan 11, Vacuum pump 12, support 13, described feeding bin 1, drive motor 3 are arranged on the top of passivation bin 2, inlet pipe 4, outlet pipe 5 are drawn from the upper end of passivation bin 2, the other end of outlet pipe 5 and high-pressure blower 11 Connect, draw the pipeline 9 connected to the vacuum pump 12 on the air outlet pipe 5, the upper end of the pipeline 9 is provided with a vacuum gauge 6, a vacuum valve 7, an inflation valve 8, and the water cooling system 10 is connected with the passivation chamber 2 through a circulating cooling water pipeline.
[0020] The passivation chamber 2 , water cooling system 10 , high-pressure fan 11 and vacuum pump 12 are arranged on the bracket 13 . ...
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The invention discloses a metal nano-powder continuous passivation device. The device consists of a feeding bunker, a passivation bunker, revolving scrapers, a revolving air intake pipe, a revolving spray nozzle, separators, a filter screen, a drive motor, a vacuum pump, a high-pressure fan, a water cooling system and the like. The metal nano-powder is placed into the passivation bunker by the feeding bunker, is spread flat by the revolving scraper driven by the drive motor, and is sequentially settled at the bottom of the passivation bunker by a first separator, a second separator and a third separator, meanwhile, passivation gas flows upwards form the bottom of the passivation bunker and evenly contacts the powder by the three separators respectively and finally flows out of the passivation bunker. A revolving scraper is also provided on the third separator to stir and disperse the power, and to cause the powder to be sequentially settled along with micropores of the separator, which provides an opportunity for the power to contact the passivation gas, thus forming an even passivation film.
Description
technical field [0001] The invention relates to a metal nano powder passivation device, in particular to a metal nano powder continuous passivation device for dispersing and surface coating passivation of the metal nano powder. This device can be used as a post-processing equipment for the preparation of metal nano powders, and is used to disperse and passivate some highly active metal nano powders. Background technique [0002] Nanotechnology has been receiving worldwide attention since the 1980s. Nanotechnology has had a profound impact on social progress, economic development, national security and the improvement of people's living standards. All countries in the world have attached great importance to the development of nanotechnology, and developed countries have formulated development strategies for nanotechnology. Many scientists predict that nanotechnology will be the most dynamic and challenging new technology in the 21st century. In nanotechnology, the preparat...
Claims
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IPC IPC(8): B22F1/00
Inventor 王志平于静辉李清德陈乃峰夏天
Owner 陕西安康三航纳米科技股份有限公司