Device for recovering nitrogen element in aluminum ash

A technology for nitrogen element and aluminum recovery, which is applied in ammonium salt preparation, chemical/physical/physicochemical fixed reactors, dispersed particle separation, etc., can solve the problems of retention theory and few recycling devices, and improve the working environment , rapid recovery, and the effect of solving the problem of irritating odor

Active Publication Date: 2017-06-20
NANTONG UNIVERSITY
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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

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  • Device for recovering nitrogen element in aluminum ash
  • Device for recovering nitrogen element in aluminum ash
  • Device for recovering nitrogen element in aluminum ash

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[0014] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0015] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

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

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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 recovery device for nitrogen, and in particular to a device for recovering nitrogen in aluminum ash slag. Background technique [0002] Aluminum ash slag (aluminum ash / aluminum slag) is a common waste in the aluminum industry with a huge output. Its main source is infusible inclusions, oxides, additives and Reaction products produced by physical and chemical reactions with additives, etc., are produced in all production processes where aluminum is melted. [0003] During the aluminum smelting process, it is usually necessary to fill the furnace with nitrogen to accelerate purification and purification. A part of the nitrogen is absorbed by the aluminum ash floating on the surface of the aluminum water when it evaporates, so the aluminum ash contains nitrogen; and aluminum nitride is formed when it meets water. Ammonia gas is easy to volatilize when heated, so the aluminum ash slag has a strong irritating a...

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Application Information

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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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