Silver electrolysis acid mist condensation recovery device

Abstract

The utility model relates to the technical field of silver electrolysis acid mist treatment, in particular to a silver electrolysis acid mist condensation recovery device which comprises a first condensation recovery device and a second condensation recovery device connected with the first condensation recovery device in series. The first condensation recovery device comprises a first coiled pipe, the first coiled pipe is fixed in the first cooling water tank, a first water inlet pipe is arranged at the bottom of the first cooling water tank, a first water outlet pipe is arranged at the top of the first cooling water tank, the input end of the first coiled pipe is connected with an acid mist collecting pipeline, and the output end of the first coiled pipe is connected with a first acid mist conveying pipeline. According to the silver electrolysis acid mist condensation recovery device, nitric acid in acid mist can be condensed and recovered.

Description

Technical Field

[0001] This utility model relates to the field of silver electrolysis acid mist treatment technology, and in particular to a silver electrolysis acid mist condensation and recovery device. Background Technology

[0002] The acid mist generated during silver electrolysis mainly contains harmful substances such as nitric acid mist, which poses a threat to the environment and human health. Therefore, acid mist needs to be recovered during silver electrolysis. The existing recovery methods mostly involve directly transporting the acid mist to a spray tower for neutralization, which cannot recover nitric acid and other substances in the acid mist, resulting in resource waste. Utility Model Content

[0003] The purpose of this invention is to provide a silver electrolytic acid mist condensation and recovery device, which can realize the condensation and recovery of nitric acid in the acid mist.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A silver electrolysis acid mist condensation and recovery device includes a first condensation and recovery device and a second condensation and recovery device connected in series with the first condensation and recovery device;

[0006] The first condensation recovery device includes a first serpentine tube, which is fixed inside a first cooling water tank. A first water inlet pipe is provided at the bottom of the first cooling water tank, and a first water outlet pipe is provided at the top. An acid mist collection pipe is connected to the input end of the first serpentine tube, and a first acid mist conveying pipe is connected to its output end.

[0007] The second condensation recovery device includes a second serpentine tube, which is fixed inside the second cooling water tank. A second water inlet pipe is provided at the bottom of the second cooling water tank, and a second water outlet pipe is provided at the top. The input end of the second serpentine tube is connected to the first acid mist conveying pipe, and its output end is connected to the second acid mist conveying pipe.

[0008] Several first conveying baffles are provided at the bend of the first serpentine tube in an alternating manner, and several second conveying baffles are provided at the bend of the second serpentine tube in an alternating manner.

[0009] As an improvement: a first collection device is provided below the first acid mist conveying pipeline. The first collection device includes a first collection box, which is connected to the first acid mist conveying pipeline. A first drain pipe is connected below the first collection box, and a first liquid level sensor is provided at the bottom of the first collection box.

[0010] As an improvement, a first electric valve is provided on the first drain pipe.

[0011] As an improvement: a second collection device is provided below the second acid mist conveying pipe. The second collection device includes a second collection box, which is connected to the second acid mist conveying pipe. A second drain pipe is connected below the second collection box, and a second liquid level sensor is provided at the bottom of the second collection box.

[0012] As an improvement, a second electric valve is provided on the second drain pipe.

[0013] As an improvement: along the acid mist conveying direction, an acid mist concentration detector, a third acid mist conveying pipeline, and a third electric valve are sequentially installed on the second acid mist conveying pipeline;

[0014] A fourth electric valve is installed on the third acid mist conveying pipeline, and the output end of the third acid mist conveying pipeline is connected to a spray tower.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. The acid mist can be condensed by two condensation recovery devices connected in series, and the condensed liquid can be recovered by two collection boxes. At the same time, the heat in the acid mist can also be exchanged during the condensation recovery process, thus realizing the recovery of heat in the acid mist.

[0017] 2. Installing conveying baffles at the bends of the serpentine tube can further extend the conveying time of acid mist within the serpentine tube, thereby increasing the condensation effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0019] Figure 1 A schematic diagram of the overall structure of a silver electrolysis acid mist condensation and recovery device;

[0020] Figure 2 for Figure 1 Schematic diagram of part A in the middle;

[0021] Figure 3 for Figure 2 Schematic diagram of Part B in the middle section;

[0022] The components are as follows: 1. First serpentine pipe; 2. Second serpentine pipe; 3. First cooling water tank; 4. Second cooling water tank; 5. First inlet pipe; 6. Second inlet pipe; 7. First outlet pipe; 8. Second outlet pipe; 9. Acid mist collection pipe; 10. First acid mist conveying pipe; 11. Second acid mist conveying pipe; 12. Third acid mist conveying pipe; 13. First conveying baffle; 14. Second conveying baffle; 15. First collection box; 16. Second collection box; 17. First drain pipe; 18. Second drain pipe; 19. First liquid level sensor; 20. Second liquid level sensor; 21. First electric valve; 22. Second electric valve; 23. Third electric valve; 24. Fourth electric valve; 25. Acid mist concentration detector; 26. Spray tower. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Please refer to Figures 1-3 A silver electrolysis acid mist condensation and recovery device includes a first condensation and recovery device and a second condensation and recovery device connected in series with the first condensation and recovery device;

[0025] The first condensation recovery device includes a first serpentine tube 1, which is fixed inside the first cooling water tank 3. A first water inlet pipe 5 is provided at the bottom of the first cooling water tank 3, and a first water outlet pipe 7 is provided at the top. An acid mist collection pipe 9 is connected to the input end of the first serpentine tube 1, and a first acid mist conveying pipe 10 is connected to its output end.

[0026] The second condensation recovery device includes a second serpentine tube 2, which is fixed inside the second cooling water tank 4. A second water inlet pipe 6 is provided at the bottom of the second cooling water tank 4, and a second water outlet pipe 8 is provided at the top. The input end of the second serpentine tube 2 is connected to the first acid mist conveying pipe 10, and its output end is connected to the second acid mist conveying pipe 11.

[0027] Several first conveying baffles 13 are provided at the bend of the first serpentine tube 1 in an alternating manner, and several second conveying baffles 14 are provided at the bend of the second serpentine tube 2 in an alternating manner.

[0028] In this embodiment, the acid mist can be condensed by two condensation recovery devices connected in series, and the condensed liquid can be recovered by two collection boxes. At the same time, the heat in the acid mist can also be exchanged during the condensation recovery process, thus realizing the recovery of heat in the acid mist. Setting a conveying baffle at the bend of the serpentine tube can further extend the conveying time of the acid mist in the serpentine tube, thereby increasing the condensation effect.

[0029] A first collection device is provided below the first acid mist conveying pipeline 10. The first collection device includes a first collection box 15, which is connected to the first acid mist conveying pipeline 10. A first drain pipe 17 is connected below the first collection box 15, and a first liquid level sensor 19 is provided at the bottom of the first collection box 15. A first electric valve 21 is provided on the first drain pipe 17.

[0030] A second collection device is provided below the second acid mist conveying pipe 11. The second collection device includes a second collection box 16, which is connected to the second acid mist conveying pipe 11. A second drain pipe 18 is connected below the second collection box 16, and a second liquid level sensor 20 is provided at the bottom of the second collection box 16. A second electric valve 22 is provided on the second drain pipe 18.

[0031] In this embodiment, the condensed acid mist becomes liquid and can flow into the first collection tank 15 and the second collection tank 16. When the liquid volume reaches a certain level, the liquid level sensor inside the collection tank senses that there is a lot of liquid in the collection tank, and then opens the corresponding electric valve to discharge a certain amount of liquid.

[0032] An acid mist concentration detector 25, a third acid mist conveying pipe 12, and a third electric valve 23 are sequentially installed along the acid mist conveying direction on the second acid mist conveying pipe 11; a fourth electric valve 24 is installed on the third acid mist conveying pipe 12, and a spray tower 26 is connected to the output end of the third acid mist conveying pipe 12.

[0033] In this embodiment, when the cooled acid mist is transported to the second acid mist conveying pipe 11, its concentration will be detected by the acid mist concentration detector 25. If the concentration is qualified, it will be discharged; if the concentration is not qualified, it will be transported to the spray tower 26 for spraying.

[0034] Workflow: After acid mist is collected, it is transported to the first serpentine pipe 1 through the acid mist collection pipe 9. The condensate is injected into the first cooling water tank 3 through the first water inlet pipe 5 and discharged through the first water outlet pipe 7. Several staggered first conveying baffles 13 are provided at the bend of the first serpentine pipe 1 to increase the time that the acid mist spends in the first serpentine pipe 1. After cooling, the acid mist liquefies into liquid and flows into the first collection box 15. The acid mist that is not completely cooled in the first serpentine pipe 1 is transported to the second serpentine pipe 2 through the first acid mist conveying pipe 10. The condensate is injected into the second cooling water tank 4 through the second water inlet pipe 6 and discharged through the second water outlet pipe 8. Several staggered second conveying baffles 14 are provided at the bend of the second serpentine pipe 2 to increase the time that the acid mist spends in the second serpentine pipe 2. After cooling, the acid mist liquefies into liquid and flows into the second collection box 16.

[0035] At this point, the liquefiable substances in the acid mist have been basically liquefied and collected. When the acid mist is transported to the second acid mist transport pipe 11, its concentration will be detected by the acid mist concentration detector 25. If the concentration is qualified, the electric valve will be opened for discharge. If the concentration is not qualified, the fourth electric valve 24 will be opened to transport the acid mist to the spray tower 26 for spraying treatment.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A silver electrolysis acid mist condensation and recovery device, characterized in that, It includes a first condensation recovery unit and a second condensation recovery unit connected in series with the first condensation recovery unit; The first condensation recovery device includes a first serpentine tube, which is fixed inside a first cooling water tank. A first water inlet pipe is provided at the bottom of the first cooling water tank, and a first water outlet pipe is provided at the top. An acid mist collection pipe is connected to the input end of the first serpentine tube, and a first acid mist conveying pipe is connected to its output end. The second condensation recovery device includes a second serpentine tube, which is fixed inside the second cooling water tank. A second water inlet pipe is provided at the bottom of the second cooling water tank, and a second water outlet pipe is provided at the top. The input end of the second serpentine tube is connected to the first acid mist conveying pipe, and its output end is connected to the second acid mist conveying pipe. Several first conveying baffles are provided at the bend of the first serpentine tube in an alternating manner, and several second conveying baffles are provided at the bend of the second serpentine tube in an alternating manner.

2. The silver electrolysis acid mist condensation and recovery device according to claim 1, characterized in that, A first collection device is provided below the first acid mist conveying pipeline. The first collection device includes a first collection box, which is connected to the first acid mist conveying pipeline. A first drain pipe is connected below the first collection box, and a first liquid level sensor is provided at the bottom of the first collection box.

3. The silver electrolysis acid mist condensation and recovery device according to claim 2, characterized in that, A first electric valve is installed on the first drain pipe.

4. The silver electrolysis acid mist condensation and recovery device according to claim 1, characterized in that, A second collection device is provided below the second acid mist conveying pipeline. The second collection device includes a second collection box, which is connected to the second acid mist conveying pipeline. A second drain pipe is connected below the second collection box, and a second liquid level sensor is provided at the bottom of the second collection box.

5. The silver electrolysis acid mist condensation and recovery device according to claim 4, characterized in that, A second electric valve is installed on the second drain pipe.

6. The silver electrolysis acid mist condensation and recovery device according to claim 1, characterized in that, An acid mist concentration detector, a third acid mist conveying pipeline, and a third electric valve are sequentially installed along the acid mist conveying direction on the second acid mist conveying pipeline. A fourth electric valve is installed on the third acid mist conveying pipeline, and the output end of the third acid mist conveying pipeline is connected to a spray tower.

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