Acid mist absorption system device

Abstract

The utility model discloses an acid mist absorption system device, include: first processing tower and second processing tower, the first processing tower is fixedly installed with the air inlet pipe, the air inlet pipe is fixedly installed with the gas collecting hood, the second processing tower top fixed mounting has the exhaust pipe, the exhaust pipe is fixedly connected with the induced draft fan of external, the first processing tower top fixed mounting has the air pipe, the air pipe is fixedly installed on the second processing tower with the first processing tower apart, the first processing tower inner chamber fixedly installed with the mounting disc, the mounting disc is fixedly installed with a plurality of evenly distributed wall flow pipe, the top of wall flow pipe slightly protrudes the top wall of mounting disc, the first processing tower is located the inner chamber above mounting disc and is fixedly installed with first spray seat, the bottom wall of spray seat is fixedly installed with a plurality of shower nozzles. The utility model can realize the three times processing to acid mist, has improved acid mist's processing effect greatly, makes its tail gas reach the strict environmental protection emission standard.

Description

Technical Field

[0001] This utility model relates to the field of acid mist absorption technology, specifically to an acid mist absorption system device. Background Technology

[0002] Tetrachlorobenzoquinone is an important dye intermediate and agrochemical. Its production process typically involves reactions such as chlorination and oxidation, which generate large amounts of highly acidic and corrosive waste gases containing hydrogen chloride (HCl) and chlorine (Cl2). Direct emission of these acid fumes will severely pollute the environment, corrode equipment, and endanger the health of operators.

[0003] Currently, common acid mist absorption devices mostly employ simple packed towers or spray towers. However, in the tetrachlorobenzoquinone production scenario, the following drawbacks exist: single spray or packed towers have limited absorption efficiency for high-concentration acid mist, especially in the tail gas treatment stage, making it difficult to meet stringent environmental emission standards. To address these issues, we propose an acid mist absorption system. Utility Model Content

[0004] The purpose of this invention is to provide an acid mist absorption system device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an acid mist absorption system device, comprising: A first processing tower and a second processing tower. An air inlet pipe is fixedly installed on the first processing tower, and an air collection hood is fixedly installed on the air inlet pipe. An exhaust pipe is fixedly installed at the top of the second processing tower and is fixedly connected to an external induced draft fan. A guide pipe is fixedly installed at the top of the first processing tower, and the end of the guide pipe away from the first processing tower is fixedly installed on the second processing tower. An installation plate is fixedly installed in the inner cavity of the first treatment tower. Multiple evenly distributed wall flow tubes are fixedly installed on the installation plate. The top of the wall flow tubes slightly protrudes from the top wall of the installation plate. A first spray seat is fixedly installed in the inner cavity of the first treatment tower above the installation plate. Multiple spray heads are fixedly installed on the bottom wall of the spray seat. A packing disc is fixedly installed inside the second treatment tower. An installation plate is fixedly installed below the packing disc. Multiple guide pipes are fixedly installed on the installation plate. Swirl plates are fixedly installed in the guide pipes. A second spray seat is fixedly installed above the packing disc. Multiple evenly distributed atomizing nozzles are fixedly installed on the bottom wall of the second spray seat.

[0006] Preferably, two small liquid pumps are fixedly installed at the bottom of the second treatment tower, and a first conduit is fixedly installed on one of the small liquid pumps. The end of the first conduit away from the small liquid pump is fixedly connected to the first spray seat.

[0007] Preferably, a second conduit is fixedly installed on another of the small liquid pumps, and the end of the second conduit away from the small liquid pump is fixedly connected to the second spray seat.

[0008] Preferably, a pH detector is fixedly installed in the bottom cavity of the second treatment tower, and the pH detector is electrically connected to the controller of an external device.

[0009] Preferably, an inlet pipe is fixedly installed on the second processing tower, the inlet pipe is connected to an external storage tank, and an electromagnetic valve is installed on the inlet pipe, the electromagnetic valve being electrically connected to an external controller.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. In use, the inlet pipe can draw in the acid mist generated during the preparation of tetrachlorobenzoquinone. After entering the inner cavity of the first treatment tower, the acid mist flows through multiple wall flow pipes. During the process of passing through the wall flow pipes, the alkaline liquid sprayed by the spray head forms a liquid film on the inner wall of the wall flow pipe, which reacts with the acid mist to achieve the treatment of the acid mist. The treated acid mist gas is introduced into the second treatment tower through the guide pipe. During the process of passing through the guide pipe, the swirl plate can improve the passage path of the acid mist gas and improve its reaction effect with the alkaline liquid. The atomized alkaline liquid can react again in the packing plate, realizing the three-stage treatment of acid mist, greatly improving the treatment effect of acid mist, and making its exhaust gas meet the strict environmental emission standards. 2. The pH detector set in this utility model can monitor the pH value of the alkaline liquid in the inner cavity at the bottom of the second treatment tower. When the pH value is lower than the set minimum threshold, the solenoid valve can be opened through the external controller to automatically replenish the alkaline liquid. When the pH value is higher than the set maximum threshold, the solenoid valve will automatically close, realizing automatic addition of alkaline liquid without manual addition, making it more convenient to use. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the acid mist absorption system device proposed in this utility model; Figure 2 This is a cross-sectional front view of the first treatment tower in the acid mist absorption system device proposed in this utility model; Figure 3 This is a cross-sectional front view of the second treatment tower in the acid mist absorption system device proposed in this utility model.

[0012] In the diagram: 1. First treatment tower; 2. Second treatment tower; 3. Inlet pipe; 4. Gas collection hood; 5. Exhaust pipe; 6. Guide pipe; 7. Mounting plate; 8. Wall flow pipe; 9. First spray seat; 10. Spray head; 11. Packing disc; 12. Mounting plate; 13. Guide pipe; 14. Swirl plate; 15. Second spray seat; 16. Atomizing nozzle; 17. Small liquid pump; 18. First conduit; 19. Second conduit; 20. pH detector; 21. Liquid inlet pipe; 22. Solenoid valve. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-3 This utility model provides a technical solution: an acid mist absorption system device, comprising: A first processing tower 1 and a second processing tower 2 are provided. An air inlet pipe 3 is fixedly installed on the first processing tower 1, and an air collection hood 4 is fixedly installed on the air inlet pipe 3. An exhaust pipe 5 is fixedly installed at the top of the second processing tower 2, and the exhaust pipe 5 is fixedly connected to an external induced draft fan. An air guide pipe 6 is fixedly installed at the top of the first processing tower 1, and the end of the air guide pipe 6 away from the first processing tower 1 is fixedly installed on the second processing tower 2. An installation plate 7 is fixedly installed in the inner cavity of the first processing tower 1. Multiple uniformly distributed wall flow pipes 8 are fixedly installed on the installation plate 7. The top end of the wall flow pipes 8 extends slightly out of the top wall of the installation plate 7. A first spray seat 9 is fixedly installed in the inner cavity of the first processing tower 1 above the installation plate 7. Multiple spray heads 10 are fixedly installed on the bottom wall of the spray seat 9. A packing disc 11 is fixedly installed in the inner cavity of the second treatment tower 2. An installation plate 12 is fixedly installed below the packing disc 11 in the second treatment tower 2. Multiple guide pipes 13 are fixedly installed on the installation plate 12. A swirl plate 14 is fixedly installed in the guide pipe 13. A second spray seat 15 is fixedly installed above the packing disc 11 in the second treatment tower 2. Multiple evenly distributed atomizing nozzles 16 are fixedly installed on the bottom wall of the second spray seat 15.

[0015] Two small liquid pumps 17 are fixedly installed at the bottom of the second treatment tower 2. A first conduit 18 is fixedly installed on one of the small liquid pumps 17. The end of the first conduit 18 away from the small liquid pump 17 is fixedly connected to the first spray seat 9.

[0016] Another small liquid pump 17 is fixedly installed with a second conduit 19, and the end of the second conduit 19 away from the small liquid pump 17 is fixedly connected to the second spray seat 15.

[0017] A pH detector 20 is fixedly installed in the bottom cavity of the second processing tower 2, and the pH detector 20 is electrically connected to the controller of the external device.

[0018] The second processing tower 2 is fixedly installed with an inlet pipe 21, which is connected to an external storage tank. An electromagnetic valve 22 is installed on the inlet pipe 21, and the electromagnetic valve 22 is electrically connected to an external controller.

[0019] Working Principle: In operation, this utility model adds a certain amount of alkaline liquid to the bottom cavity of the second treatment tower 2 through the inlet pipe 21. The alkaline liquid is then introduced into the first spray seat 9 and the second spray seat 15 through the first conduit 18 and the second conduit 19, respectively. Under the action of an externally installed induced draft fan, the exhaust pipe 5 creates a negative pressure inside the first treatment tower 1 and the second treatment tower 2, allowing the air inlet pipe 3 to draw in the acid mist generated during the preparation of tetrachlorobenzoquinone. After entering the cavity of the first treatment tower 1, the acid mist flows through multiple wall flow pipes 8. During this process, the alkaline liquid sprayed from the spray head 10 forms a liquid film on the inner wall of the wall flow pipe 8, reacting with the acid mist to treat it. The treated acid mist gas is then introduced into the second treatment tower 2 through the air guide pipe 6. In treatment tower 2, during the process of passing through the guide pipe 13, the swirl plate 14 can improve the passage path of the acid mist gas and enhance its reaction effect with the alkaline liquid. The atomized alkaline liquid can react again in the packing disc 11, realizing the three-stage treatment of acid mist, which greatly improves the treatment effect of acid mist and enables its tail gas to meet the strict environmental emission standards. The pH detector 20 can monitor the pH value of the alkaline liquid in the bottom cavity of the second treatment tower 2. When the pH value is lower than the set minimum threshold, the solenoid valve 22 can be opened through the external controller to automatically replenish the alkaline liquid. When the pH value is higher than the set maximum threshold, the solenoid valve 22 will automatically close, realizing the automatic addition of alkaline liquid without manual addition, making it more convenient to use.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] 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 acid mist absorption system device, characterized in that, include: A first processing tower (1) and a second processing tower (2). An air inlet pipe (3) is fixedly installed on the first processing tower (1), and an air collection hood (4) is fixedly installed on the air inlet pipe (3). An exhaust pipe (5) is fixedly installed at the top of the second processing tower (2), and the exhaust pipe (5) is fixedly connected to an external induced draft fan. A guide pipe (6) is fixedly installed at the top of the first processing tower (1), and the end of the guide pipe (6) away from the first processing tower (1) is fixedly installed on the second processing tower (2). An installation plate (7) is fixedly installed in the inner cavity of the first processing tower (1). Multiple uniformly distributed wall flow pipes (8) are fixedly installed on the installation plate (7). The top end of the wall flow pipe (8) extends slightly out of the top wall of the installation plate (7). A first spray seat (9) is fixedly installed in the inner cavity of the first processing tower (1) above the installation plate (7). Multiple spray heads (10) are fixedly installed on the bottom wall of the spray seat (9). A packing disc (11) is fixedly installed in the inner cavity of the second treatment tower (2). An installation plate (12) is fixedly installed below the packing disc (11) of the second treatment tower (2). Multiple guide pipes (13) are fixedly installed on the installation plate (12). A swirl plate (14) is fixedly installed in the guide pipe (13). A second spray seat (15) is fixedly installed above the packing disc (11) of the second treatment tower (2). Multiple evenly distributed atomizing nozzles (16) are fixedly installed on the bottom wall of the second spray seat (15).

2. The acid mist absorption system device according to claim 1, characterized in that: Two small liquid pumps (17) are fixedly installed at the bottom of the second treatment tower (2). A first conduit (18) is fixedly installed on one of the small liquid pumps (17). The end of the first conduit (18) away from the small liquid pump (17) is fixedly connected to the first spray seat (9).

3. The acid mist absorption system device according to claim 2, characterized in that: Another small liquid pump (17) is fixedly installed with a second conduit (19), and the end of the second conduit (19) away from the small liquid pump (17) is fixedly connected to the second spray seat (15).

4. The acid mist absorption system device according to claim 1, characterized in that: A pH detector (20) is fixedly installed in the bottom cavity of the second processing tower (2), and the pH detector (20) is electrically connected to the controller of the peripheral device.

5. The acid mist absorption system device according to claim 1, characterized in that: The second processing tower (2) is fixedly installed with an inlet pipe (21), which is connected to an external storage tank. An electromagnetic valve (22) is installed on the inlet pipe (21), and the electromagnetic valve (22) is electrically connected to an external controller.

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