High-concentration ammonia-containing waste gas absorption device

Abstract

The utility model relates to a high-concentration ammonia-containing waste gas absorption device which comprises a hollow box body, a sulfuric acid reaction part and an activated carbon absorption part, the sulfuric acid reaction part and the activated carbon absorption part are arranged in the box body, the sulfuric acid reaction part comprises a gas inlet, a liquid inlet, a liquid outlet, an isolation plate and a plurality of filter plates, and the isolation plate is horizontally installed in the box body. The side face of the end away from the air inlet and the box body are spaced to form a first air outlet part. The filter plate is respectively connected with the top surface of the bottom of the box body and the bottom surface of the isolation plate; each filtering plate comprises a filtering part and a blocking part, each filtering part is provided with a plurality of filtering air holes, the blocking parts are closed, the filtering plates are arranged at intervals, the filtering parts and the blocking parts between the adjacent filtering plates are distributed in a staggered mode, and the filtering parts of the filtering plates closest to one side of the air inlet and one side of the first air outlet part are all located below the blocking parts. The device can conveniently and efficiently absorb high-concentration ammonia-containing waste gas, ensures that the environment is not polluted and is more environment-friendly, and the subsequent reaction product treatment is simple and easy to implement.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sewage treatment, especially relates to a high concentration ammonia-containing waste gas absorption device. BACKGROUND

[0002] In the production process of chemical industry, the generation of ammonia-containing organic waste gas is a problem that cannot be ignored. If this waste gas is not properly treated, it will not only pollute the environment, but also pose a potential threat to the health of workers. Therefore, it is particularly important to properly handle and utilize these waste gases.

[0003] In the production process of chemical industry, various chemical reactions and process operations may produce waste gas containing ammonia and other organic compounds. These waste gases may contain toxic and harmful substances such as ammonia, volatile organic compounds, etc. These substances not only pollute the environment, but also can cause damage to the respiratory system and skin of workers. For the treatment of ammonia-containing organic waste gas, there are various methods and technologies to choose from. Among them, biological method is a commonly used treatment method. By utilizing the metabolic action of microorganisms, harmful substances in waste gas are converted into harmless or low-harm substances. This method has the advantages of high treatment efficiency, low running cost, no secondary pollution, etc. In addition, physical and chemical methods are also commonly used treatment methods, such as adsorption method, condensation method, oxidation method, etc. These methods can be selected and combined according to the composition and properties of the waste gas to achieve the best treatment effect.

[0004] At present, China is strengthening the control of VOCs organic waste gas, which is not only the inevitable requirement of environmental protection, but also an important measure to promote sustainable development of industry and achieve green production. In the process of industrial production, the emission of VOCs (volatile organic compounds) is an environmental pollution source that cannot be ignored. These waste gases contain a large amount of harmful substances, which not only cause serious pollution to the atmospheric environment, but also affect human health.

[0005] After searching, Chinese utility model patent 201120239293.0 relates to a wastewater treatment device for ammonia removal and ammonia nitrogen recovery. Semi-coke wastewater is wastewater generated during the production of semi-coke products and the quenching process, and its COD, BOD, SS, phenol, NH3-N, waste gas, etc. have very high content and complex composition, among which organic pollutants are mainly phenolic compounds, accounting for more than half of the total organic matter. High-concentration organic wastewater is difficult to treat, and thus it cannot quickly and efficiently treat high-concentration ammonia-containing waste gas. UTILITY MODEL CONTENT

[0006] The technical problem to be solved by the utility model is to provide a high-concentration ammonia-containing waste gas absorption device that can conveniently and efficiently absorb high-concentration ammonia-containing waste gas, ensure that the environment is not polluted and is more environmentally friendly, and subsequent treatment of reaction products is also simple and easy.

[0007] The utility model provides a kind of high concentration ammonia-containing waste gas absorption device, including hollow box, sulfuric acid reaction part and activated carbon absorption part being arranged in box, the sulfuric acid reaction part is located at box bottom, the activated carbon absorption part is located above sulfuric acid reaction part, and its bottom surface and sulfuric acid reaction part top surface have interval, the box top is also equipped with gas outlet;The sulfuric acid reaction part includes gas inlet, liquid inlet, liquid outlet, baffle and several filter plates, the gas inlet, liquid inlet, liquid outlet are all equipped in box side wall;The baffle is horizontally installed in box, and installation height is higher than gas inlet height, and its far from gas inlet one end side surface and box exist interval and form first gas outlet part, remaining side surface and box inner wall are fixedly connected;The filter plate is respectively connected with box bottom top surface and baffle bottom surface;The filter plate includes filter part and stop part, the filter part is equipped with several filter holes, the stop part is closed, the filter plate is arranged with interval, and filter part and stop part are distributed with each other between adjacent filter plate, and the filter part of filter plate closest to gas inlet and first gas outlet part is all below stop part.

[0008] Preferably, a stirring device is provided in the box, and the stirring device is arranged near the gas inlet end.

[0009] Preferably, the activated carbon absorption part has a gap with the top surface of the box. The residual ammonia-containing waste gas is completely absorbed by the activated carbon absorption part.

[0010] Preferably, a first liquid level controller is arranged below the first gas outlet part.

[0011] Preferably, a second liquid level controller is arranged below the gas inlet. The amount of sulfuric acid used in the sulfuric acid reaction part is accurately controlled.

[0012] Preferably, two liquid outlets are arranged on the bottom of the first gas outlet part and the bottom of the gas inlet side of the box. After the reaction is completed, the reaction liquid can be fully discharged from the box.

[0013] Preferably, three filter plates are arranged, the filter part and the stop part are arranged alternately between adjacent filter plates, the filter part of the filter plate closest to the gas inlet and the first gas outlet part is below the stop part, and the filter part of the middle filter plate is above the stop part. When the ammonia-containing waste gas initially enters the sulfuric acid reaction part, the gas can only enter the next reaction space from the bottom after fully reacting with sulfuric acid. When the remaining small amount of ammonia-containing waste gas is discharged from the sulfuric acid reaction part, it can only be discharged from the bottom, and fully reacts with sulfuric acid again, ensuring the efficiency of the sulfuric acid reaction.

[0014] The utility model has the following technical effects:

[0015] 1. By the sulfuric acid reaction part including several filter plates including filter part and block part, the ammonia-containing waste gas is fully reacted with sulfuric acid when initially entering the sulfuric acid reaction part, and the gas can only enter the next reaction space from the bottom; the remaining small amount of ammonia-containing waste gas can only be discharged from the bottom when discharging from the sulfuric acid reaction part, and is fully reacted with sulfuric acid again to ensure the efficiency of sulfuric acid reaction treatment; and the residual ammonia-containing waste gas is completely absorbed by the activated carbon absorption part. Convenient and efficient absorption of high-concentration ammonia-containing waste gas ensures that the environment is not polluted and is more green and environmentally friendly.

[0016] 2. The stirring device can ensure that most of the high-concentration ammonia-containing waste gas is fully absorbed when entering the initial position of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a cross-sectional structure schematic view of the utility model;

[0018] Fig. 2 is a filter plate structure schematic view of the utility model.

[0019] In the figure: 1, box; 2, activated carbon absorption part; 3, sulfuric acid reaction part; 4, gas outlet; 5, gas inlet; 6, liquid inlet; 7, liquid outlet; 8, isolation plate; 9, filter plate; 91, filter part; 92, block part; 10, first gas outlet; 11, stirring device; 15, first liquid level controller. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is specifically described below in combination with the drawings.

[0021] As Figs. 1-2The application discloses a high-concentration ammonia-containing waste gas absorption device, which comprises a hollow box body 1, a sulfuric acid reaction part 3 and an activated carbon absorption part 2 arranged in the box body 1, the sulfuric acid reaction part 3 is arranged at the bottom of the box body 1, the activated carbon absorption part 2 is arranged above the sulfuric acid reaction part 3 and has a spacing with the top surface of the sulfuric acid reaction part 3, and a gas outlet 4 is further arranged at the top of the box body 1; the sulfuric acid reaction part 3 comprises a gas inlet 5, a liquid inlet 6, a liquid outlet 7, a partition plate 8 and a plurality of filter plates 9, the gas inlet 5, the liquid inlet 6 and the liquid outlet 7 are arranged on the side wall of the box body 1; the partition plate 8 is horizontally arranged in the box body 1 and has a height higher than that of the gas inlet 5, the side surface of the end of the partition plate 8 away from the gas inlet 5 is spaced from the box body 1 to form a first gas outlet part 10, and the remaining side surfaces of the partition plate 8 are fixedly connected with the inner wall of the box body 1; the filter plates 9 are connected with the top surface of the bottom of the box body 1 and the bottom surface of the partition plate 8; the filter plate 9 comprises a filter part 91 and a blocking part 92, the filter part 91 is provided with a plurality of filter holes, the blocking part 92 is in a closed shape, the filter plates 9 are arranged in a spaced mode, the filter parts 91 and the blocking parts 92 of the adjacent filter plates 9 are arranged in a staggered mode, and the filter parts 91 of the filter plates 9 closest to the gas inlet 5 and the first gas outlet part 10 are arranged below the blocking parts 92.

[0022] A stirring device 11 is arranged in the box body 1 and close to the end of the gas inlet 5, so that most of the high-concentration ammonia-containing waste gas can be fully absorbed when entering the device at the initial position.

[0023] The activated carbon absorption part 2 has a spacing with the top surface of the box body 1, so that the residual ammonia-containing waste gas can be fully absorbed by the activated carbon absorption part 2.

[0024] A first liquid level controller 15 is arranged below the first gas outlet part 10.

[0025] A second liquid level controller is arranged below the gas inlet 5, so that the amount of sulfuric acid in the sulfuric acid reaction part 3 can be accurately controlled.

[0026] The liquid outlet 7 is provided with two liquid outlets arranged at the bottom of the first gas outlet part 10 and the bottom of the gas inlet 5, so that the reaction liquid can be fully discharged from the box body 1 after the reaction is completed.

[0027] The filter plate 9 is provided with three filter plates, the filter parts 91 and the blocking parts 92 of the adjacent filter plates 9 are arranged in a staggered mode, the filter parts 91 of the filter plates 9 closest to the gas inlet 5 and the first gas outlet part 10 are arranged below the blocking parts 92, and the filter parts 91 of the middle filter plate 9 are arranged above the blocking parts 92, so that the ammonia-containing waste gas can only enter the next reaction space from the bottom after fully reacting with sulfuric acid when entering the sulfuric acid reaction part 3 at the initial position, the remaining small amount of ammonia-containing waste gas can only be discharged from the bottom when being discharged from the sulfuric acid reaction part 3, and the ammonia-containing waste gas can be fully reacted with sulfuric acid again, so that the sulfuric acid reaction treatment efficiency is ensured.

[0028] The use method of the high-concentration ammonia-containing waste gas absorption device is as follows:

[0029] After the preset values of the first liquid level controller 15 and the second liquid level controller are adjusted, sulfuric acid is input, and when the liquid levels of the first liquid level controller 15 and the second liquid level controller both reach the preset values, the input of the sulfuric acid is stopped. The stirring device is started, high-concentration ammonia-containing waste gas is introduced into the gas inlet 5, a large amount of the high-concentration ammonia-containing waste gas is absorbed in the sulfuric acid reaction part 3, residual ammonia-containing waste gas is absorbed by the activated carbon absorption part 2 and then discharged from the gas outlet 4, and after the reaction is completed, the liquid outlet 7 is opened to discharge the reaction liquid.

[0030] The above-described embodiments are only used to describe the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope defined by the claims of the present application.

Claims

1. A high concentration ammonia-containing exhaust gas absorption device characterized by comprising: The utility model provides a sulfuric acid absorption device, comprising a hollow box, a sulfuric acid reaction part and an activated carbon absorption part arranged in the box, the sulfuric acid reaction part is arranged at the bottom of the box, the activated carbon absorption part is arranged above the sulfuric acid reaction part, and the bottom surface of the activated carbon absorption part is spaced apart from the top surface of the sulfuric acid reaction part, and the top of the box is further provided with an air outlet; the sulfuric acid reaction part comprises an air inlet, a liquid inlet, a liquid outlet, a partition plate and a plurality of filter plates, and the air inlet, the liquid inlet and the liquid outlet are arranged on the side wall of the box; the partition plate is horizontally arranged in the box, and the installation height of the partition plate is higher than the height of the air inlet; the side surface of the end of the partition plate away from the air inlet is spaced apart from the box to form a first air outlet part, and the remaining side surfaces of the partition plate are fixedly connected to the inner wall of the box; the filter plates are connected to the top surface of the bottom of the box and the bottom surface of the partition plate; the filter plates comprise filter parts and blocking parts, the filter parts are provided with a plurality of filter holes, the blocking parts are in a closed shape, the filter plates are arranged at intervals, the filter parts and the blocking parts of adjacent filter plates are distributed in a staggered manner, and the filter parts of the filter plates closest to the air inlet and the first air outlet part are located below the blocking parts.

2. The high concentration ammonia-containing exhaust gas absorption apparatus according to claim 1, characterized by: A stirring device is arranged in the box and close to the air inlet.

3. The high concentration ammonia-containing exhaust gas absorption apparatus according to claim 1, characterized by: The activated carbon absorption part is spaced apart from the top surface of the box.

4. The high concentration ammonia-containing exhaust gas absorption apparatus according to claim 1, characterized by: A first liquid level controller is arranged below the first air outlet part.

5. The high concentration ammonia-containing exhaust gas absorption apparatus according to claim 1, characterized by: A second liquid level controller is arranged below the air inlet.

6. The high concentration ammonia-containing exhaust gas absorption apparatus according to claim 1, characterized by: The liquid outlet comprises two parts, which are arranged at the bottom of the first air outlet part and the bottom of the air inlet.

7. The high concentration ammonia-containing exhaust gas absorption apparatus according to claim 1, characterized by: The filter plates comprise three parts, the filter parts and the blocking parts of adjacent filter plates are arranged in a staggered manner, and the filter parts of the filter plates closest to the air inlet and the first air outlet part are located below the blocking parts, and the filter parts of the middle filter plate are located above the blocking parts.

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