A sealing device for collecting pollutants in TNT vapor counterpoison operation
By installing annular pipe vents and spray components inside the reaction tower, the contact area and contact time between the gas and the liquid absorbent are increased, solving the problem of insufficient treatment of gaseous pollutants in TNT steam dumping operations and achieving efficient pollutant removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY UNIT 32525
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-19
AI Technical Summary
When existing equipment treats gaseous pollutants generated during TNT vapor dumping operations, the contact area between the gaseous pollutants and the liquid absorbent is small, resulting in insufficient reaction and affecting the treatment effect.
The design incorporates vent holes on the inner and outer walls of the annular pipe, allowing gaseous pollutants to be discharged from multiple directions, increasing the contact area with the liquid absorbent. The absorbent is replenished through a spray assembly, extending the contact time and path. Combined with a guide plate and spray mechanism, the reaction effect is enhanced.
It significantly improves the reaction efficiency between gaseous pollutants and liquid absorbents, reduces the pollutant content in the gas, and improves treatment efficiency.
Smart Images
Figure CN224371090U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of pollutant treatment, and in particular to a sealing device for collecting pollutants from TNT steam dispensing operations. Background Technology
[0002] With the continuous development of the chemical industry, the use of various hazardous chemicals is increasing daily. High-energy explosives like TNT generate large amounts of toxic and harmful gaseous pollutants during production and other processes. These gaseous pollutants not only severely pollute the production environment and endanger the health of workers, but also cause significant damage to the surrounding ecological environment if directly released into the atmosphere. Therefore, how to efficiently collect, seal, and treat these gaseous pollutants has become a crucial problem that urgently needs to be solved in the chemical industry, especially in areas involving TNT production and related operations.
[0003] In the past, when dealing with gaseous pollutants generated during TNT dumping operations, a common method was to pass the gaseous pollutants into a liquid absorbent. Specifically, the gaseous pollutants were introduced through a pipe into a container filled with liquid absorbent, allowing the gas to come into contact with and react with the absorbent, thereby reducing the amount of pollutants in the gas.
[0004] In existing devices that treat pollutants by passing gaseous pollutants through a liquid absorbent, the contact area between the gaseous pollutants and the liquid absorbent is relatively small. Due to this limited contact area, the reaction between the gaseous pollutants and the liquid absorbent is insufficient, significantly affecting the reaction efficiency and requiring improvement. Utility Model Content
[0005] The purpose of this application is to provide a sealing device for collecting pollutants in TNT steam dispensing operations, in order to improve the reaction effect between gaseous pollutants and liquid absorbents.
[0006] The present application provides a TNT steam discharge operation pollutant collection and sealing device with the following technical solution: it includes a reaction tower filled with liquid absorbent, an inlet pipe connected to the bottom of the reaction tower, an outlet pipe connected to the top of the reaction tower, an annular pipe provided at the outlet end of the inlet pipe, the annular pipe being located inside the liquid absorbent, and an outlet hole provided on both the inner and outer peripheral walls of the annular pipe.
[0007] By adopting the above technical solution, the pollutant gas generated by the TNT steam pouring operation is introduced into the liquid absorbent in the reaction tower through the air inlet pipe. The air outlet holes on the inner and outer peripheral walls of the annular pipe allow the gas to be discharged from multiple directions, increasing the contact area between the gas and the liquid absorbent, improving the reaction effect between the gaseous pollutants and the liquid absorbent, thereby reducing the pollutants in the gas.
[0008] Optionally, the air outlet is inclined, with the air inlet end of the air outlet higher than the air outlet end.
[0009] By adopting the above technical solution, since the inlet end of the gas outlet is higher than the outlet end, gaseous pollutants are sprayed towards the bottom of the reaction tower, increasing the path length of the gaseous pollutants in the absorbent and allowing for a longer contact time between the gaseous pollutants and the absorbent, thereby improving the reaction efficiency. As the gaseous pollutants move upward from the bottom, they gradually react with the absorbent, preventing premature saturation of the absorbent at the top.
[0010] Optionally, the air outlets located on the outer peripheral wall of the annular pipe and the air outlets located on the inner peripheral wall of the annular pipe are staggered.
[0011] By adopting the above technical solution, the air outlets on the outer peripheral wall and the air outlets on the inner peripheral wall are not on the same radial line, and the gas is ejected from different angles, reducing the phenomenon of excessively high or low local gas concentration and making the utilization rate of absorbent more balanced.
[0012] Optionally, there are at least two annular pipes, which are arranged vertically and connected by a connecting pipe. Both annular pipes are connected to the connecting pipe, which is connected to the air intake pipe.
[0013] By adopting the above technical solution, layered spraying allows for a more uniform distribution of gas within the absorption tower, avoiding localized gas concentration caused by a single spray layer. The gaseous pollutants sprayed from the lower annular pipe have a longer travel path, increasing their contact time with the absorbent and improving the reaction efficiency between the gaseous pollutants and the liquid absorbent.
[0014] Optionally, the air outlets on two adjacent annular pipes are staggered.
[0015] By adopting the above technical solution, the gas outlets are arranged in an alternating manner, so that gaseous pollutants are ejected from different heights and angles, forming a three-dimensional cross airflow, reducing the flow dead zone in the reaction tower, and improving the reaction effect between gaseous pollutants and absorbent.
[0016] Optionally, a spray assembly is connected inside the reaction tower, and the spray assembly is located between the inlet end of the annular pipe and the outlet pipe.
[0017] By adopting the above technical solution, when the gaseous pollutants in the reaction tower rise and move to the next step, the spraying mechanism can replenish the absorbent in the reaction tower. As the absorbent falls under gravity, it can further spray the gas that has been treated by the liquid absorbent at the bottom of the reaction tower, thereby improving the reaction effect between the gaseous pollutants and the absorbent and reducing the pollutants in the gas.
[0018] Optionally, the spray assembly includes an inlet pipe, a main pipe connected to the inlet pipe, and a plurality of branch pipes connected to the main pipe, each of the branch pipes being connected to a plurality of spray pipes.
[0019] By adopting the above technical solution, the absorbent in the spray assembly is sprayed out at different places in the absorption tower through the three-stage diversion of the main pipeline, branch pipeline and spray pipeline, which increases the contact area between gaseous pollutants and liquid absorbent, improves the reaction effect between gaseous pollutants and liquid absorbent, and better reduces pollutants in the gas.
[0020] Optionally, an orifice plate is connected to the end of the spray pipe away from the branch pipe.
[0021] By adopting the above technical solution, the absorbent liquid in the spray channel is atomized when it passes through the orifice plate, which allows the absorbent liquid to come into better contact with the gaseous pollutants and improves the reaction effect between the absorbent liquid and the gaseous pollutants.
[0022] Optionally, a number of guide plates are inclinedly connected inside the reaction tower. All the guide plates are located between the spray assembly and the annular pipe, and the distance between two adjacent guide plates gradually decreases towards the annular pipe.
[0023] By adopting the above technical solution, during the gas's ascent, several guide plates guide the gas to move in both directions, allowing the gas to diffuse within the reaction tower, increasing the contact area between the gas and the absorbent liquid, and improving the reaction effect between the absorbent liquid and gaseous pollutants.
[0024] Optionally, each guide plate is provided with at least two diverter plates on the side away from the axis of the annular pipe, and the distance between two adjacent diverter plates gradually decreases in the direction closer to the annular pipe.
[0025] By adopting the above technical solution, the gas diffuses to different areas during its ascent, further increasing the contact area between gaseous pollutants and liquid absorbents, enhancing the reaction effect between gaseous pollutants and liquid absorbents, and better reducing pollutants in the gas.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. The pollutant gas generated during the TNT steam pouring operation is introduced into the liquid absorbent in the reaction tower through the inlet pipe. The vent holes on the inner and outer walls of the annular pipe allow the gas to be discharged from multiple directions, increasing the contact area between the gas and the liquid absorbent, improving the reaction effect between the gaseous pollutants and the liquid absorbent, and reducing the pollutants in the gas.
[0028] 2. The spraying mechanism can not only replenish the absorbent into the reaction tower, but also spray the gas after it has been treated by the liquid absorbent at the bottom of the reaction tower during the process of the absorbent falling under gravity, thereby improving the reaction effect between gaseous pollutants and absorbent and reducing pollutants in the gas. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0030] Figure 2 This is a cross-sectional view of an embodiment of this application.
[0031] Figure 3 This is a schematic diagram of the overall structure of the guide plate in an embodiment of this application.
[0032] Figure 4 This is a schematic diagram of the overall structure of the spray assembly according to an embodiment of this application.
[0033] Figure 5 yes Figure 4 A sectional view.
[0034] Figure 6 yes Figure 5 An enlarged view of region A.
[0035] Explanation of reference numerals in the attached diagram: 1. Reaction tower; 11. Inlet pipe; 12. Outlet pipe; 13. Activated carbon plate; 2. Annular pipe; 3. Connecting pipe; 4. Guide plate; 41. Diverter plate; 5. Spray assembly; 51. Liquid inlet pipe; 52. Main pipe; 53. Branch pipe; 54. Liquid spraying pipe; 55. Orifice plate. Detailed Implementation
[0036] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail.
[0037] This application discloses a sealing device for collecting pollutants during TNT steam dispensing operations.
[0038] Combination Figure 1 and Figure 2As shown, the system includes a reaction tower 1 connected to an inlet pipe 11. The outlet of the inlet pipe 11 is located at the bottom of the reaction tower 1. The reaction tower 1 is filled with a liquid absorbent, which can be water, ethylene glycol, or other specially formulated absorbents. The outlet of the inlet pipe 11 is located within the liquid absorbent. At least two annular pipes 2 are provided at the outlet of the inlet pipe 11. Taking this embodiment as an example, there are two annular pipes 2, arranged vertically. The two annular pipes 2 are connected by a connecting pipe 3, with both ends of the connecting pipe 3 fixedly connected to the two annular pipes 2. Both annular pipes 2 are connected to the connecting pipe 3. The outlet of the inlet pipe 11 is fixedly connected to the connecting pipe 3, and the inlet pipe 11 is connected to the connecting pipe 3. The distance from the connection point of the inlet pipe 11 and the connecting pipe 3 to the two annular pipes 2 is equal. Both the connecting pipe 3 and the two annular pipes 2 are located within the liquid absorbent. An outlet pipe 12 is fixedly connected to the top of the reaction tower 1, and an activated carbon plate 13 is fixedly connected inside the reaction tower 1. The activated carbon plate 13 is located between the inlet of the outlet pipe 12 and the annular pipe 2.
[0039] like Figure 2 As shown, both the outer and inner walls of the annular pipe 2 are provided with a number of air outlets. These outlets are evenly distributed around the axis of the annular pipe 2, and each outlet is inclined downwards, with the inlet end higher than the outlet end. The outlets on the outer and inner walls are staggered, with one outlet on the inner wall between every two adjacent outlets on the outer wall. Similarly, the outlets on the inner walls of two annular pipes 2 are staggered, with one outlet on the outer wall of one annular pipe 2 intersecting with one outlet on the outer wall of the other annular pipe 2, and one outlet on the inner wall of one annular pipe 2 intersecting with one outlet on the inner wall of the other annular pipe 2, and one outlet on the inner wall of one annular pipe 2 intersecting with one outlet on the inner wall of the other annular pipe 2.
[0040] Combination Figure 2 and Figure 3As shown, several guide plates 4 are fixedly connected inside the reaction tower 1. Taking this embodiment as an example, there are four guide plates 4, all of which are inclined and located above the annular pipe 2, between the activated carbon plate 13 and the annular pipe 2. Two guide plates 4 are located on one side of the axis of the annular pipe 2, and the other two are located on the other side. The distance between two adjacent guide plates 4 gradually decreases towards the annular pipe 2. At least two diversion plates 41 are provided on the side of each guide plate 4 away from the axis of the annular pipe 2. Taking this embodiment as an example, there are two diversion plates 41, both of which are inclined and the distance between them gradually decreases towards the annular pipe 2. The inclination direction of the diversion plates 41 is different from that of the guide plates 4. The diversion plates 41 and the guide plates 4 guide the gaseous pollutants to move in different directions, allowing the gaseous pollutants to diffuse in different places within the reaction tower 1.
[0041] Combination Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a spray assembly 5 is connected inside the reaction tower 1. The spray assembly 5 is located between the activated carbon plate 13 and the guide plate 4. The spray assembly 5 includes an inlet pipe 51, a main pipe 52 fixedly connected to the inlet pipe 51, and several branch pipes 53 fixedly connected to the main pipe 52. Each branch pipe 53 is arranged perpendicular to the main pipe 52. Several spray pipes 54 are fixedly connected to the lower side of each branch pipe 53. All spray pipes 54 are distributed along the direction of the branch pipes 53. The distance between two adjacent spray pipes 54 is equal. An orifice plate 55 is fixedly connected inside each spray pipe 54. The orifice plate 55 is located at the end of the spray pipe 54 away from the branch pipes 53.
[0042] The implementation principle of the TNT steam discharge operation pollutant collection and sealing device in this application embodiment is as follows:
[0043] Gaseous pollutants enter the connecting pipe 3 through the inlet pipe 11. The pollutants in the connecting pipe 3 then enter two annular pipes 2 and exit through the outlet. The gaseous pollutants react with the liquid absorbent. Even if the pollutants do not completely react with the liquid absorbent, this portion of the pollutants rises with the gas. The guide plate 4 and the diverter plate 41 disperse the rising gas at different locations in the reaction tower 1. The liquid absorbent passes sequentially through the inlet pipe 51, main pipe 52, branch pipe 53, spray pipe 54, and orifice plate 55 before being discharged. The discharged liquid absorbent is atomized and reacts with the pollutants in the rising air, increasing the contact area between the pollutants and the liquid absorbent, improving the reaction efficiency, and thus reducing the pollutant content in the air. The gas then passes through the activated carbon plate 13 and moves to the next process through the outlet pipe 12.
[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A sealing device for collecting pollutants during TNT vapor dumping operations, characterized in that: The system includes a reaction tower (1) filled with a liquid absorbent. The bottom of the reaction tower (1) is connected to an inlet pipe (11), and the top of the reaction tower (1) is connected to an outlet pipe (12). An annular pipe (2) is provided at the outlet end of the inlet pipe (11). The annular pipe (2) is located inside the liquid absorbent. Both the inner and outer peripheral walls of the annular pipe (2) are provided with outlet holes.
2. The TNT steam discharge operation pollutant collection and sealing device according to claim 1, characterized in that: The air outlet is inclined, with the air inlet end of the air outlet higher than the air outlet end.
3. The TNT steam discharge operation pollutant collection and sealing device according to claim 1, characterized in that: The air outlets located on the outer peripheral wall of the annular pipe (2) and the air outlets located on the inner peripheral wall of the annular pipe (2) are arranged alternately.
4. The TNT steam discharge operation pollutant collection and sealing device according to claim 1, characterized in that: There are at least two annular pipes (2), the two annular pipes (2) are distributed vertically, the two annular pipes (2) are connected by a connecting pipe (3), both annular pipes (2) are connected to the connecting pipe (3), and the connecting pipe (3) is connected to the air intake pipe (11).
5. The TNT steam discharge operation pollutant collection and sealing device according to claim 4, characterized in that: The air outlets on two adjacent annular pipes (2) are staggered.
6. The TNT steam discharge operation pollutant collection and sealing device according to claim 1, characterized in that: The reaction tower (1) is connected to a spray assembly (5), which is located between the inlet end of the annular pipe (2) and the outlet pipe (12).
7. The TNT vapor discharge operation pollutant collection and sealing device according to claim 6, characterized in that: The spray assembly (5) includes an inlet pipe (51), a main pipe (52) connected to the inlet pipe (51), and a number of branch pipes (53) connected to the main pipe (52), each of the branch pipes (53) being connected to a number of spray pipes (54).
8. The TNT vapor discharge operation pollutant collection and sealing device according to claim 7, characterized in that: The end of the spray pipe (54) away from the branch pipe (53) is connected to an orifice plate (55).
9. The TNT vapor discharge operation pollutant collection and sealing device according to claim 6, characterized in that: The reaction tower (1) is inclinedly connected with several guide plates (4). All the guide plates (4) are located between the spray assembly (5) and the annular pipe (2). The distance between two adjacent guide plates (4) gradually decreases towards the annular pipe (2).
10. The TNT vapor discharge operation pollutant collection and sealing device according to claim 9, characterized in that: Each guide plate (4) is inclined with at least two diverter plates (41) on the side away from the axis of the annular pipe (2), and the distance between two adjacent diverter plates (41) gradually decreases in the direction closer to the annular pipe (2).