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Device for recovering nitrogen from aluminum ash

A nitrogen element and aluminum recovery technology is applied in the field of devices for recovering nitrogen elements in aluminum slag, which can solve the problems of staying at the theoretical level and few recycling devices, so as to improve the working environment, quickly recover, and solve the problem of irritating odor. Effect

Active Publication Date: 2020-01-31
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there are many methods for utilizing nitrogen in aluminum ash, which basically stay at the theoretical level, but there are very few devices for recycling nitrogen in aluminum ash, and it is urgent to provide a method for recovering nitrogen in aluminum ash. device

Method used

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  • Device for recovering nitrogen from aluminum ash
  • Device for recovering nitrogen from aluminum ash
  • Device for recovering nitrogen from aluminum ash

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Embodiment Construction

[0014] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0015] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

[0016] Such as Figure 1 to Figure 5 As shown, a device for recovering nitrogen in aluminum ash and slag provided by the present application includes: a reactor 1 and an absorption tower 2. The reactor 1 and the absorption tower 2 are connected through a pipeline 3 for collecting ammonia .

[0017] Further, ...

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Abstract

The invention discloses a device for recovering nitrogen element in aluminum ash. The device comprises a reaction kettle and an absorption tower, wherein the reaction kettle communicates with the absorption tower by means of a pipe for collecting ammonia gas. The device for recovering nitrogen element in aluminum ash, provided by the invention, is characterized in that: the aluminum ash is hydrolyzed in the reaction kettle to generate ammonia gas, and the ammonia gas is transported via a pipe and collected by the absorption tower, so that the nitrogen element in the aluminum ash is recovered to an utmost extent, pollution of the aluminum ash on the environment in the later processing course is avoided, and harmless, recycled and beneficial treatment of the aluminum ash is achieved.

Description

Technical field [0001] The present disclosure generally relates to a nitrogen recovery device, and in particular to a device for recovering nitrogen in aluminum ash. Background technique [0002] Aluminum ash (aluminum ash / aluminum slag) is a common waste in the aluminum industry. Its output is huge. Its main sources are infusible inclusions, oxides, additives and The reaction products produced by physical and chemical reactions with additives are produced in all production processes where aluminum melts. [0003] In the aluminum smelting process, nitrogen is usually filled into the furnace to accelerate purification and purification. Part of the nitrogen is absorbed by the aluminum ash floating on the surface of the aluminum water when evaporating, so the aluminum ash slag contains nitrogen; and aluminum nitride is formed when exposed to water Ammonia gas is easily volatile when heated, so aluminum ash slag has a strong irritating ammonia smell when it is damp, which has caused g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/18B01D53/14C01C1/28
CPCB01D53/1418B01J19/18C01C1/28
Inventor 倪红军倪威胡妙关吕帅帅汪兴兴朱昱黄明宇胡永胜
Owner NANTONG UNIVERSITY
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