An ammonia organic solution absorption device

By using a spiral guide plate, spiral atomizing nozzle, and multi-stage filtration design, the contact time and area between ammonia and organic solution are extended, solving the problems of short contact time and solution loss in ammonia treatment, and achieving efficient ammonia absorption and purification.

CN224270698UActive Publication Date: 2026-05-26LANZHOU ZHICHUN CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANZHOU ZHICHUN CHEM CO LTD
Filing Date
2025-07-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing ammonia treatment methods have short contact times, poor filtration effects, and the organic solutions are easily released into the air, leading to air pollution.

Method used

The contact time between ammonia and organic solution is extended by using spiral guide plates and spiral atomizing nozzles. Combined with spiral condenser plates, the gas contact area and temperature control are increased. Multi-stage filter boxes are used for multi-layer filtration to ensure effective absorption and purification of ammonia.

Benefits of technology

It improves ammonia absorption efficiency, ensures no loss of organic solvents, achieves significant purification results, and safeguards environmental safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an ammonia organic solution absorption device, relating to the field of ammonia filtration technology. It includes an absorption tank with a filter assembly at the top and an ammonia organic solution absorption assembly installed inside. The ammonia organic solution absorption assembly includes a spiral guide plate installed inside the absorption tank, with a spiral atomizing nozzle in the middle of the spiral guide plate. A storage tank is welded to the lower side of the spiral guide plate. Due to its spiral structure, the spiral guide plate allows the ammonia entering the absorption tank to have a longer residence time under the spiral guidance, increasing the contact area between the ammonia and the organic solution, reducing the ammonia flow rate, and improving absorption efficiency. A pump extracts the organic solution from the storage tank, and a booster pump pressurizes it before delivering it to the spiral atomizing nozzle, forming fine atomized droplets. At this time, the atomized droplets sprayed from the spiral atomizing nozzle are fully mixed with the ammonia under the guidance of the spiral guide plate.
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Description

Technical Field

[0001] This utility model relates to the field of ammonia filtration technology, and in particular to an ammonia organic solution absorption device. Background Technology

[0002] Ammonia absorption using organic solutions refers to the absorption of ammonia gas from ammonia-containing gases using organic acid or organic base solutions. Organic acid solutions consist of organic acid extractants and solvents, such as organic phosphorus extractants, carboxylic acid extractants, and kerosene. Organic base solutions that have extracted acids consist of organic amine extractants, inorganic acids, and solvents. Ammonia is absorbed through gas-liquid contact.

[0003] A search revealed that the document with publication number "CN219291011U" states that "this utility model relates to the technical field of ammonia absorption, and in particular to an ammonia absorption device that can use less water and recycle it, reducing water waste, while achieving a high ammonia absorption rate. It includes an ammonia absorption tower and a circulating water tank. An inlet pipe is connected to the bottom side wall of the ammonia absorption tower, and an outlet pipe is connected to the top of the ammonia absorption tower. Multiple heating plates are installed inside the circulating water tank. The bottom of the ammonia absorption tower and the top of the circulating water tank are connected via a water pump, and the bottom of the circulating water pump and the top of the ammonia absorption tower are connected via a water pump. An ammonia discharge pipe is connected to the top of the circulating water tank." In use, a partition with multiple through holes is fixedly connected to the upper inner side of the ammonia absorption tower. A sliding plate is guided and slidably fitted above the partition. Multiple through slots staggered from the through holes are provided on the sliding plate. The connection between the second water pump and the ammonia absorption tower is located above the sliding plate.

[0004] However, industrial production often generates waste gas containing ammonia. Such waste gas needs to have the ammonia removed to avoid air pollution. Common ammonia treatment methods often use adsorption. However, in common adsorption methods, the ammonia-containing waste gas is often directly flushed to absorb and filter the ammonia. However, this method has a short contact time and poor filtration effect. At the same time, the atomized organic solution is also easy to flow out with the air circulation. If it is not condensed, the organic solution can easily enter the atmosphere.

[0005] Therefore, we provide an ammonia organic solution absorption device to solve the above problems. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an ammonia organic solution absorption device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An ammonia organic solution absorption device includes an absorption tank. A tank opening filter assembly is disposed on the upper side of the absorption tank. An ammonia organic solution absorption assembly is installed inside the absorption tank. The ammonia organic solution absorption assembly includes a spiral guide plate installed inside the absorption tank. A spiral atomizing nozzle is disposed in the middle of the spiral guide plate. A liquid storage tank is welded to the lower side of the spiral guide plate. A condenser tank is connected to the right side of the liquid storage tank via a pipe. A spiral condenser plate is welded to the inner side of the condenser tank. A condensate storage tank is welded to the lower side of the condenser tank. A multi-stage filter box is connected to the right side of the condensate storage tank via a pipe.

[0009] As a further description of the above technical solution:

[0010] The canister filter assembly includes a filter canister welded to the top of the absorption canister. A V-shaped filter screen is installed on the inner side of the filter canister. An air inlet is screwed to the upper side of the filter canister. The V-shaped filter screen has a V-shaped structure in the middle.

[0011] As a further description of the above technical solution:

[0012] The spiral guide plate is welded to the absorption tank, and the spiral guide plate has a spiral structure and is made of stainless steel.

[0013] As a further description of the above technical solution:

[0014] A liquid pump is connected to the outside of the liquid storage tank, and a booster pump is connected to the outside of the spiral atomizing nozzle. The booster pump and the liquid pump are connected by a pipeline, and the spiral atomizing nozzle and the spiral guide plate have the same thread direction.

[0015] As a further description of the above technical solution:

[0016] A temperature-conducting column runs through the middle of the spiral condenser plate, and a control circuit is connected to the outside of the temperature-conducting column. The spiral condenser plate is spiral-shaped, and the control circuit controls the temperature adjustment of the spiral condenser plate through the temperature-conducting column.

[0017] As a further description of the above technical solution:

[0018] The inner side of each multi-stage filter box is provided with a slot, and a filter screen plate is connected to the inner side of the slot. The filter screen plate is a porous foam ceramic plate.

[0019] As a further description of the above technical solution:

[0020] The top of the multi-stage filtration box is equipped with a filter carbon canister, which is a canister-type activated carbon filter.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model utilizes an ammonia-organic solution absorption component. The spiral guide plate, due to its spiral structure, allows the ammonia entering the absorption tank to have a longer residence time under the spiral guidance, increasing the contact area between the ammonia and the organic solution, and reducing the ammonia flow rate to improve absorption efficiency. Meanwhile, a pump extracts the organic solution from the storage tank, and a booster pump pressurizes it before delivering it to the spiral atomizing nozzle, forming fine atomized droplets. At this point, the atomized water droplets sprayed from the spiral atomizing nozzle, guided by the spiral guide plate, fully mix with the ammonia, extending the contact time, enhancing the absorption effect, and ensuring that harmful components in the ammonia are effectively removed.

[0023] 2. This utility model utilizes an ammonia-organic solution absorption component. When the gas enters the condenser, the control circuit adjusts the temperature of the spiral condenser plate via a temperature-conducting column. At this time, water vapor in the air condenses upon contact with the condenser and eventually falls into the condensate storage tank along the spiral condenser plate. The spiral structure of the spiral condenser plate increases the gas contact time and area, thereby effectively reducing the gas temperature without needing to lower the temperature too much, avoiding water vapor freezing on the surface of the spiral condenser plate. This ensures an efficient and smooth condensation process and prevents the condenser plate from freezing and affecting the overall operational stability of the device. The purified air is then sent into a multi-stage filter box. Here, the filter screen, being a porous foam ceramic plate, effectively intercepts fine particulate matter, ensuring air cleanliness. Simultaneously, the multi-stage filtration design progressively improves the filtration effect, ultimately discharging compliant gas and ensuring environmental safety. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the absorption tank of this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the condenser of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the multi-stage filter box of this utility model;

[0028] Figure 5 This is a schematic diagram of the cooperation structure between the filter can opening and the V-shaped filter screen of this utility model;

[0029] Figure 6 This is a schematic diagram of the combined structure of the spiral guide plate and the spiral atomizing nozzle of this utility model.

[0030] The diagram is labeled as follows: 1. Absorption tank; 2. Tank opening filter assembly; 201. Filter tank opening; 202. V-shaped filter screen; 203. Air inlet; 3. Ammonia organic solution absorption assembly; 301. Spiral guide plate; 302. Spiral atomizing nozzle; 303. Liquid storage tank; 304. Liquid pump; 305. Booster pump; 306. Condensate tank; 307. Spiral condenser plate; 308. Temperature guiding column; 309. Control circuit; 310. Condensate storage tank; 311. Multi-stage filter box; 312. Slot; 313. Filter screen plate; 314. Filter carbon canister. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: an ammonia organic solution absorption device, including an absorption tank 1, an upper tank outlet filter assembly 2, an ammonia organic solution absorption assembly 3 installed inside the absorption tank 1, the ammonia organic solution absorption assembly 3 including a spiral guide plate 301 installed inside the absorption tank 1, a spiral atomizing nozzle 302 arranged in the middle of the spiral guide plate 301, a liquid storage tank 303 welded to the lower side of the spiral guide plate 301, a condenser tank 306 connected to the right side of the liquid storage tank 303 by a pipe, a spiral condenser plate 307 welded to the inner side of the condenser tank 306, a condensate storage tank 310 welded to the lower side of the condenser tank 306, and a multi-stage filter box 311 connected to the right side of the condensate storage tank 310 by a pipe.

[0033] Furthermore, the canister filter assembly 2 includes a filter canister 201 welded to the top of the absorption tank 1. A V-shaped filter screen 202 is installed on the inner side of the filter canister 201. An air inlet 203 is screwed to the upper side of the filter canister 201. The V-shaped filter screen 202 has a V-shaped structure in the middle. When needed, ammonia enters through the air inlet 203 and is initially filtered by the V-shaped filter screen 202, intercepting large particulate impurities such as soot that may be present in the ammonia, thereby improving the ammonia purification efficiency, ensuring that the subsequent absorption process is not interfered with by impurities, and ensuring the stable operation of the device.

[0034] Furthermore, the spiral guide plate 301 is welded to the absorption tank 1. The spiral guide plate 301 has a spiral structure and is made of stainless steel. When needed, the spiral guide plate 301, due to its spiral structure, allows the ammonia gas entering the absorption tank 1 to have a longer residence time under the spiral guiding effect, increasing the contact area between the ammonia gas and the organic solution, and reducing the ammonia gas flow rate, thereby improving the absorption efficiency.

[0035] Furthermore, a liquid pump 304 is connected to the outside of the storage tank 303, and a booster pump 305 is connected to the outside of the spiral atomizing nozzle 302. The booster pump 305 and the liquid pump 304 are connected by a pipeline. The spiral atomizing nozzle 302 and the spiral guide plate 301 have the same thread direction. When needed, the liquid pump 304 extracts the organic solution from the storage tank 303, and the booster pump 305 pressurizes it and delivers it to the spiral atomizing nozzle 302 to form fine atomized droplets. At this time, the atomized water droplets sprayed by the spiral atomizing nozzle 302 are fully mixed with ammonia gas under the guidance of the spiral guide plate 301, which prolongs the contact time, enhances the absorption effect, and ensures that the harmful components in the ammonia gas are effectively removed.

[0036] Furthermore, a temperature-conducting column 308 runs through the center of the spiral condenser plate 307, and a control circuit 309 is connected to the outside of the temperature-conducting column 308. The spiral condenser plate 307 is spiral in shape, and the control circuit 309 controls the spiral condenser plate 307 to adjust its temperature through the temperature-conducting column 308. When the gas enters the condenser tank 306, the spiral structure of the spiral condenser plate 307 can increase the gas contact time and area, thereby effectively reducing the gas temperature. It is also not necessary to lower the temperature to a very low level, avoiding water vapor freezing on the surface of the spiral condenser plate 307, ensuring that the condensation process is efficient and smooth, and preventing the condenser plate from freezing and affecting the overall operational stability of the device.

[0037] Furthermore, the inner side of the multi-stage filter box 311 is provided with slots 312, and the inner side of the slots 312 is connected to filter screens 313. The filter screens 313 are made of porous foam ceramic plates. When needed, the purified air is sent into the multi-stage filter box 311. At this time, since the filter screens 313 are made of porous foam ceramic plates, they can effectively intercept fine particulate matter and ensure air cleanliness. At the same time, the multi-stage filtration design improves the filtration effect layer by layer, and finally discharges qualified gas to ensure environmental safety.

[0038] Furthermore, a filter carbon canister 314 is installed at the top of the multi-stage filter box 311. The filter carbon canister 314 adopts a canister-type activated carbon filter. When needed, the filter carbon canister 314 adopts a canister-type activated carbon filter, which can effectively adsorb harmful gases and odors in the air. As the final filtration stage, it further purifies the air and ensures that the exhaust gas fully meets the standards.

[0039] Working principle: When needed, first place the absorption tank 1 in the desired position, then inject the ammonia-containing waste gas into the absorption tank 1 through the inlet 203. During this process, the V-shaped filter screen 202 inside the filter tank opening 201 will filter out large particulate impurities in the ammonia-containing waste gas. After entering the absorption tank 1, the filtered waste gas will flow along the spiral guide plate 301. At the same time, the spiral atomizing nozzle 302 will draw the organic solution from the storage tank 303 through the liquid pump 304, and after being pressurized by the booster pump 305, it will be sprayed out from the spiral atomizing nozzle 302, thus atomizing the ammonia-containing waste gas flowing along the spiral guide plate 301. Ammonia is adsorbed, while the organic solution is re-aggregated and flows back into the storage tank 303. The air after ammonia adsorption then flows into the condenser 306. At this time, the control circuit 309 reduces the surface temperature of the spiral condenser plate 307 through the temperature-conducting column 308, condensing any water mist that may be present in the air after ammonia adsorption. The water droplets after condensation flow back into the condensate storage tank 310. Finally, the air enters the multi-stage filter box 311, and after being filtered by the filter screen plate 313 and the filter carbon canister 314 in the slot 312, it is discharged into the atmosphere. This completes the process of using an ammonia organic solution absorption device.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ammonia organic solution absorption device, comprising an absorption tank (1), characterized in that: The absorption tank (1) is provided with a tank opening filter assembly (2) on its upper side. The absorption tank (1) is provided with an ammonia organic solution absorption assembly (3) on its inner side. The ammonia organic solution absorption assembly (3) includes a spiral guide plate (301) installed on the inner side of the absorption tank (1). A spiral atomizing nozzle (302) is provided in the middle of the spiral guide plate (301). A liquid storage tank (303) is welded to the lower side of the spiral guide plate (301). A condenser tank (306) is connected to the right side of the liquid storage tank (303). A spiral condenser plate (307) is welded to the inner side of the condenser tank (306). A condensate storage tank (310) is welded to the lower side of the condenser tank (306). A multi-stage filter box (311) is connected to the right side of the condensate storage tank (310).

2. The ammonia organic solution absorption device according to claim 1, characterized in that, The canister filter assembly (2) includes a filter canister (201) welded to the top of the absorption canister (1). A V-shaped filter screen (202) is installed on the inner side of the filter canister (201). An air inlet (203) is screwed to the upper side of the filter canister (201). The V-shaped filter screen (202) has a V-shaped structure in the middle.

3. The ammonia organic solution absorption device according to claim 1, characterized in that, The spiral guide plate (301) is welded to the absorption tank (1). The spiral guide plate (301) has a spiral structure and is made of stainless steel.

4. The ammonia organic solution absorption device according to claim 1, characterized in that, A liquid pump (304) is connected to the outside of the liquid storage tank (303), and a booster pump (305) is connected to the outside of the spiral atomizing nozzle (302). The booster pump (305) and the liquid pump (304) are connected by a pipeline. The spiral atomizing nozzle (302) and the spiral guide plate (301) have the same thread direction.

5. The ammonia organic solution absorption device according to claim 1, characterized in that, A temperature-conducting column (308) runs through the middle of the spiral condenser plate (307), and a control line (309) is connected to the outside of the temperature-conducting column (308). The spiral condenser plate (307) is spiral in shape, and the control line (309) controls the spiral condenser plate (307) to adjust the temperature through the temperature-conducting column (308).

6. The ammonia organic solution absorption device according to claim 1, characterized in that, The inner side of each multi-stage filter box (311) is provided with a slot (312), and the inner side of the slot (312) is connected to a filter screen plate (313), which is a porous foam ceramic plate.

7. The ammonia organic solution absorption device according to claim 1, characterized in that, The top of the multi-stage filter box (311) is equipped with a filter carbon canister (314), which is a canister-type activated carbon filter.