CN213556242U

CN213556242U - Ammonia waste gas treatment device

Info

Publication number: CN213556242U
Application number: CN202022241985.0U
Authority: CN
Inventors: 董平; 刘雅萍
Original assignee: Fujian Kaiyuan Environmental Technology Development Co ltd
Current assignee: Fujian Kaiyuan Environmental Technology Development Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-29
Anticipated expiration: 2030-10-10

Abstract

The invention discloses an ammonia waste gas treatment device which comprises an absorption tank, wherein the top of the absorption tank is of a conical necking structure, an air outlet is formed in the top of the absorption tank, a first air inlet and a second air inlet are sequentially formed in the right side wall surface of the absorption tank from top to bottom, and a first packing layer, a second packing layer and the like are fixedly connected to the upper portion inside the absorption tank. The utility model discloses a cross the filter bin with U type union coupling tail gas, and cross the inside fixed connection detachable AFM filter layer and cellular cellucotton filter layer in the filter bin of tail gas, the AFM filter layer contains permanent metallic oxide catalyst, produce high redox potential, have biological resistance and from the toxicity of disinfecting, furthermore cellular cellucotton filter layer can adsorb a small amount of moisture and impurity, thereby reach the effect of getting rid of tail gas, the ammonia exhaust treatment device who has solved prior art adopts the tail gas after spraying the absorption directly to integrate into aquatic or discharge to the atmosphere, the polluted environment and the lower technical problem of recovery efficiency.

Description

Ammonia waste gas treatment device

Technical Field

The invention belongs to the technical field of ammonia gas treatment devices, and particularly relates to an ammonia gas waste gas treatment device.

Background

The industrial production of ammonia is mostly carried out by synthesis from nitrogen and hydrogen at high pressure and temperature in the presence of a catalyst. The nitrogen mainly comes from air; hydrogen is mainly derived from synthesis gas containing hydrogen and carbon monoxide, pure hydrogen also being derived from the electrolysis of water. The mixed gas of ammonia gas composed of nitrogen gas and hydrogen gas is the raw material gas for synthesizing ammonia, the raw material gas from fuel chemical industry contains sulfur compound and carbon oxide, which are toxic substances for the catalyst for synthesizing ammonia, and the raw material gas is purified before the synthesis of ammonia. The irritation of ammonia is a reliable harmful concentration alarm signal, but the low-concentration ammonia is difficult to be perceived after long-term contact due to olfactory fatigue, the inhalation is a main contact way, the poisoning after the ammonia gas is inhaled is mainly shown in the following aspects, and the mild inhalation ammonia poisoning is shown in rhinitis, pharyngitis, laryngalgia and hoarseness. The ammonia gas flows from bottom to top after being connected into the equipment, is filtered by a lower packing layer and then is absorbed by a spraying system added with dilute sulfuric acid solution from top to bottom, and the ammonia gas is dissolved in water and flows to a water tank at the bottom. However, the ammonia waste gas treatment device in the prior art adopts tail gas after spray absorption to be directly mixed into water or discharged to the atmosphere, so that the environment is polluted and the recovery efficiency is low.

Disclosure of Invention

(1) Technical scheme

In order to overcome the defects of the prior art, the invention provides an ammonia waste gas treatment device, which comprises an absorption tank, wherein the top of the absorption tank is of a conical necking structure, the top of the absorption tank is provided with an air outlet, the right side wall surface of the absorption tank is sequentially provided with a first air inlet and a second air inlet from top to bottom, a first packing layer and a second packing layer are fixedly connected above the inside of the absorption tank, a first spray head pipe fixed on the inner side wall surface of the absorption tank is arranged below the first packing layer, the first spray head pipe is arranged in a region between the first packing layer and the second packing layer, a second spray head pipe fixed on the inner side wall surface of the absorption tank is arranged below the second packing layer, the bottoms of the first spray head pipe and the second spray head pipe are fixedly connected with atomization spray heads which are linearly arranged at equal intervals, and a water suction pump is arranged at the bottom of the absorption tank, the outlet end connection outlet pipe of suction pump, the gas outlet passes through U type union coupling tail gas and crosses the filter bin, the rear end that the tail gas crossed the filter bin is the toper throat structure, the inside fixed connection detachable AFM filter layer and the cellular cellucotton filter layer of tail gas cross the filter bin, the rear end that the tail gas crossed the filter bin is equipped with the exhaust tube, the exhaust tube passes through flange joint peripheral hardware air exhauster.

And a third packing layer fixed on the inner side wall surface of the absorption tank is arranged below the second nozzle pipe.

Furthermore, an access door is arranged at the right end of the tail gas filtering bin, and the access door is positioned below the tail end of the U-shaped pipe.

Furthermore, the rear end of the tail gas filtering bin is provided with an activated carbon honeycomb column, and the upstream end of the activated carbon honeycomb column is connected with a pressure difference meter.

The design principle of the utility model is as follows: the U-shaped pipe is connected with the tail gas filtering bin, the detachable AFM filtering layer and the honeycomb fiber cotton filtering layer are fixedly connected inside the tail gas filtering bin, the rear end of the tail gas filtering bin is provided with the exhaust pipe, the AFM filtering layer is used for replacing sand or other filtering materials in all filtering material filtering applications, the tail gas filtering bin is made of specific glass, the tail gas filtering bin is processed to achieve the optimal particle size and shape, contains a permanent metal oxide catalyst, generates high oxidation-reduction potential, and has biological resistance and self-disinfection property. Moreover, the honeycomb-shaped cellucotton filter layer can adsorb a small amount of water and impurities, so that the effect of removing tail gas is achieved.

(2) Advantageous effects

The invention has the beneficial effects that: compared with the prior art, the utility model discloses a cross the filter bin with U type union coupling tail gas, and cross the inside fixed connection detachable AFM filter layer and cellular cellucotton filter layer in the filter bin of tail gas, the AFM filter layer contains permanent metallic oxide catalyst, produce high redox potential, have biological resistance and from the toxicity of disinfecting, furthermore cellular cellucotton filter layer can adsorb a small amount of moisture and impurity, thereby reach the effect of getting rid of tail gas, the ammonia exhaust treatment device who has solved prior art adopts the tail gas after spraying the absorption directly to integrate into aquatic or discharge to the atmosphere, the polluted environment and the lower technical problem of recovery efficiency.

Drawings

Fig. 1 is a schematic structural view of an ammonia gas exhaust gas treatment device.

Detailed Description

The present invention will be further described with reference to the following examples.

Example one

Referring to fig. 1, the embodiment provides an ammonia waste gas treatment device, which includes an absorption tank 1, the top of the absorption tank 1 is of a tapered necking structure, an air outlet 11 is formed in the top of the absorption tank 1, a first air inlet 12 and a second air inlet 13 are sequentially formed in the right side wall surface of the absorption tank 1 from top to bottom, a first filler layer 14 and a second filler layer 15 are fixedly connected above the inside of the absorption tank 1, a first nozzle pipe 16 fixed on the inner side wall surface of the absorption tank 1 is arranged below the first filler layer 14, the first nozzle pipe 16 is arranged in a region between the first filler layer 14 and the second filler layer 15, a second nozzle pipe 17 fixed on the inner side wall surface of the absorption tank 1 is arranged below the second filler layer 15, the bottoms of the first nozzle pipe 16 and the second nozzle pipe 17 are fixedly connected with atomization nozzles arranged in a straight line at equal distance, the bottom of absorption tank 1 is equipped with suction pump 18, outlet pipe 19 is connected to the exit end of suction pump 18, tail gas filtration storehouse 2 is connected through U type pipe 20 to gas outlet 11, the rear end of tail gas filtration storehouse 2 is the toper throat structure, the inside fixed connection detachable AFM filter layer 21 and the cellular cellucotton filter layer 22 in tail gas filtration storehouse 2, the rear end of tail gas filtration storehouse 2 is equipped with exhaust tube 23, exhaust tube 23 passes through flange joint peripheral hardware air exhauster.

In this embodiment, a third filler layer 24 fixed on the inner side wall surface of the absorption tank 1 is arranged below the second nozzle pipe 17, an access door 25 is arranged at the right end of the tail gas filtering bin 2, the access door 25 is positioned below the tail end of the U-shaped pipe 20, an activated carbon honeycomb column 26 is arranged at the rear end of the tail gas filtering bin 2, and a pressure difference meter 27 is connected to the upstream end of the activated carbon honeycomb column 26. In the embodiment, the U-shaped pipe 20 is connected with the tail gas filtering bin 2, the detachable AFM filtering layer 21 and the honeycomb-shaped cellucotton filtering layer 22 are fixedly connected inside the tail gas filtering bin 2, the rear end of the tail gas filtering bin 2 is provided with the air exhaust pipe 23, the AFM filtering layer 21 is used for replacing sand or other filtering materials in all filtering material filtering applications, the tail gas filtering bin is made of specific glass, the tail gas filtering bin is processed to achieve the optimal particle size and shape, contains a permanent metal oxide catalyst, generates high oxidation-reduction potential, and has biological resistance and self-disinfection property. Furthermore, the honeycomb-shaped cellucotton filter layer 22 can adsorb a small amount of moisture and impurities, thereby achieving the effect of removing tail gas.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The ammonia waste gas treatment device comprises an absorption tank (1), wherein the top of the absorption tank (1) is of a conical necking structure, and is characterized in that a gas outlet (11) is formed in the top of the absorption tank (1), a first gas inlet (12) and a second gas inlet (13) are sequentially formed in the right side wall surface of the absorption tank (1) from top to bottom, a first packing layer (14) and a second packing layer (15) are fixedly connected to the upper portion of the inside of the absorption tank (1), a first spray head pipe (16) fixed on the side wall surface of the absorption tank (1) is arranged below the first packing layer (14), the first spray head pipe (16) is arranged in a region between the first packing layer (14) and the second packing layer (15), a second spray head pipe (17) fixed on the side wall surface of the absorption tank (1) is arranged below the second packing layer (15), first shower nozzle pipe (16) with the bottom fixed connection of second shower nozzle pipe (17) is equidistance inline's atomizer, the bottom of absorption tank (1) is equipped with suction pump (18), outlet pipe (19) is connected to the exit end of suction pump (18), tail gas filtration storehouse (2) is connected through U type pipe (20) in gas outlet (11), the rear end of tail gas filtration storehouse (2) is the toper throat structure, the inside fixed connection detachable AFM filter layer (21) and cellular fiber cotton filter layer (22) of tail gas filtration storehouse (2), the rear end of tail gas filtration storehouse (2) is equipped with exhaust tube (23), exhaust tube (23) are through flange joint peripheral hardware air exhauster.

2. An ammonia gas exhaust gas treatment device according to claim 1, characterized in that: a third filler layer (24) fixed on the inner side wall surface of the absorption tank (1) is arranged below the second spray head pipe (17).

3. An ammonia gas exhaust gas treatment device according to claim 1, characterized in that: an access door (25) is arranged at the right end of the tail gas filtering bin (2), and the access door (25) is located below the tail end of the U-shaped pipe (20).

4. An ammonia gas exhaust gas treatment device according to claim 1, characterized in that: the rear end of the tail gas filtering bin (2) is provided with an activated carbon honeycomb column (26), and the upstream end of the activated carbon honeycomb column (26) is connected with a pressure difference meter (27).