Fe-Al-series metal film and preparation method thereof

A metal membrane, fe-al technology, applied in separation methods, chemical instruments and methods, membrane technology, etc., can solve the problems of large filtration resistance, expand the application range of metal porous membranes, and low flux, and achieve low filtration resistance, Improve the effect of membrane material performance defects and high filtration accuracy
CN111249922APending Publication Date: 2020-06-09AT&M ENVIRONMENTAL ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
AT&M ENVIRONMENTAL ENG TECH CO LTD
Publication Date
2020-06-09

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Abstract

The invention discloses a Fe-Al-series metal film and a preparation method thereof, belonging to the related technical field of gas-solid separation under high-temperature and low-pressure working conditions. The invention mainly aims to overcome the defect that a traditional metal filter element is large in filtering resistance, low in flux and the like in a low-pressure working environment in the prior art. The preparation method comprises the steps: subjecting Fe-Al-series metal powder and a water-based solvent added with an organic additive to stirring and defoaming to obtain tape castingslurry; carrying out tape casting on a metal base layer with a desired thickness by using a tape casting machine to obtain a uniform film layer, and drying the uniform film layer to obtain a film blank; and subjecting the dried film blank to degreasing, sintering and alloy phase ordering treatment in a sintering furnace to prepare the Fe-Al-series metal film, wherein the degreasing treatment refers to treatment for removing the organic additive. Therefore, the Fe-Al-series metal film prepared by the method has high flux and can be applied under the working conditions of high operation temperature, low working pressure and low outlet solid content.
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Description

technical field

[0001] The invention relates to the technical field related to gas-solid separation under high temperature and low pressure conditions, especially to the technical field of performance optimization of iron-aluminum (hereinafter referred to as Fe-Al) metal film and its green preparation method. Background technique

[0002] Boiler exhaust gas is a kind of exhaust gas containing soot, SO 2 , NO x Unreasonable control and substandard emissions will seriously pollute the atmosphere, reduce air quality, and have adverse effects on the ecological environment and even the future development of mankind. At present, the amount of boiler tail gas emitted by industrial boilers in my country can reach 6-8Mt per year, accounting for a large proportion of the total smoke and dust emissions in the country. Therefore, strengthening the control of boiler tail gas emissions and effectively reducing the content of solid particles in the tail gas is crucial to improving air qua...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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