A spray type industrial flue gas carbon dioxide collecting and purifying device

Abstract

The utility model discloses a kind of spray type industrial flue gas carbon dioxide collection purification devices, including lower pipeline and upper pipeline, filter chamber is equipped between the lower pipeline and upper pipeline, the one end of the filter chamber is set as filter core replacement port: the filter device of the utility model is installed in the inside of filter chamber using the way of plug-in, filter device can be directly separated from filter chamber, to facilitate the disassembly of filter core, the upper of filter device is equipped with conical shield cover, and annular water collecting tank is equipped between conical shield cover and filter device, the structure makes that the sodium hydroxide reagent of downward spraying is gathered to the edge of conical shield cover after contacting conical shield cover, and concentrated flow into annular water collecting tank, reagent is not easy to flow into filter device, and because the lower edge of conical shield cover extends downward and shields gas outlet, and airflow is also downward and upward movement, so that water mist is not easy to enter filter device.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas treatment devices, specifically a spray-type industrial flue gas carbon dioxide collection and purification device. Background Technology

[0002] In current common chemical processes, the production of large quantities of carbon dioxide often employs technologies that recover industrial waste gas. Existing methods for purifying and recovering carbon dioxide feedstock gas mainly include absorption, pressure swing adsorption, adsorption distillation, and membrane separation.

[0003] Currently, flue gas treatment towers used for collecting carbon dioxide need to filter the flue gas before spraying reagents to adsorb carbon dioxide gas, in order to reduce the content of solid particulate matter in the flue gas. The filter element for filtering the flue gas needs to be cleaned after a period of use, but the current filter element is not easy to replace, and the water mist generated by spraying can easily clog the filter element, causing the filter element's filtration effect to decrease. Utility Model Content

[0004] The purpose of this invention is to provide a spray-type industrial flue gas carbon dioxide collection and purification device to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spray-type industrial flue gas carbon dioxide collection and purification device, comprising a lower pipe and an upper pipe, a filter chamber provided between the lower pipe and the upper pipe, one end of the filter chamber being a filter element replacement port, a filter device removable from the filter element replacement port being installed inside the filter chamber, a detachable filter element being provided on the inner side of the filter device, an annular water collection trough being provided on the lower inner side of the upper pipe, the outer side of the annular water collection trough being connected to the inner wall of the upper pipe, an air outlet being provided on the upper inner side of the annular water collection trough, a conical shield being installed on the top inner side of the annular water collection trough, a liquid outlet communicating with the annular water collection trough being provided on the outer side of the upper pipe, the lower edge of the conical shield extending downward and blocking the air outlet, a spray mechanism being installed in the middle inner side of the upper pipe, a top cover being installed on the top of the upper pipe, an exhaust fan being installed at the center of the top cover, and a demister being installed at the bottom of the top cover.

[0006] Preferably, a handle is fixed on the end face of the filter device, a grid for supporting the filter element is provided at the bottom of the filter device, a positioning groove is provided on one side of the filter device, and a positioning rib that cooperates with the positioning groove is provided on one side of the inner side of the filter chamber.

[0007] Preferably, the spraying mechanism consists of a spray pipe mounting frame, an annular spray pipe, and a spray liquid injection pipe. The spray pipe mounting frame has multiple components that are circumferentially and equally spaced on the inner wall of the upper pipe. The annular spray pipe is mounted on the spray pipe mounting frame and has multiple spray heads that are equally spaced on the annular spray pipe. The spray liquid injection pipe passes through the upper pipe and is connected to the annular spray pipe.

[0008] Preferably, the lower pipe is provided with an air inlet and a liquid outlet.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The filter device of this utility model is installed inside the filter chamber by plugging in. The filter device can be directly pulled out from the filter chamber, which facilitates the disassembly of the filter element. A conical shield is provided above the filter device, and an annular water collection tank is provided between the conical shield and the filter device. This structure makes it so that when the downward sprayed sodium hydroxide reagent comes into contact with the conical shield, it will gather towards the edge of the conical shield and flow into the annular water collection tank. The reagent is not easy to flow into the filter device. In addition, since the lower edge of the conical shield extends downward and blocks the air outlet, and the airflow moves from bottom to top, water mist is also not easy to enter the filter device. The handle on the end face of the filter device is used to assist in the disassembly and assembly of the filter device. The positioning groove on the filter device, together with the positioning rib on the filter chamber, can play a foolproof role and prevent the filter device from being installed backwards. Using a ring-shaped spray pipe with multiple spray heads evenly spaced on it allows for more uniform reagent spraying. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall internal structure of this utility model; Figure 2 This is a schematic diagram of the overall external structure of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the filter device of this utility model.

[0011] In the diagram: 1. Lower pipe; 2. Air inlet; 3. Filter device; 4. Filter chamber; 5. Upper pipe; 6. Top cover; 7. Exhaust fan; 8. Spray liquid injection pipe; 9. Liquid outlet; 10. Drain outlet; 11. Demister; 12. Spray pipe mounting bracket; 13. Annular spray pipe; 14. Spray head; 15. Annular water collection trough; 16. Conical shield; 17. Air outlet; 18. Filter element; 19. Positioning rib; 20. Handle; 21. Positioning groove; 22. Grille. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0013] Please see Figure 1-3 In this embodiment of the utility model, a spray-type industrial flue gas carbon dioxide collection and purification device includes a lower pipe 1 and an upper pipe 5. The lower pipe 1 is provided with an air inlet 2 and a liquid outlet 10. A filter chamber 4 is provided between the lower pipe 1 and the upper pipe 5. One end of the filter chamber 4 is a filter element replacement port. A filter device 3 that can be removed from the filter element replacement port is installed inside the filter chamber 4. A removable filter element 18 is provided on the inner side of the filter device 3. An annular water collection trough 15 is provided on the lower inner side of the upper pipe 5. The outer side of the annular water collection trough 15 is connected to the inner wall of the upper pipe 5. An air outlet 17 is provided on the upper inner side of the annular water collection trough 15. A conical shield 16 is installed on the top inner side of the annular water collection trough 15. An outlet 9 that communicates with the annular water collection trough 15 is provided on the outer side of the upper pipe 5. The lower edge of the conical shield 16 extends downward and blocks the air outlet 17. A spray mechanism is installed in the middle inner side of the upper pipe 5. A top cover 6 is installed on the top of the upper pipe 5. An exhaust fan 7 is installed in the center of the top cover 6. A demister 11 is installed at the bottom of the top cover 6.

[0014] A handle 20 is fixed on the end face of the filter device 3. A grid 22 for supporting the filter element 18 is provided at the bottom of the filter device 3. A positioning groove 21 is provided on one side of the filter device 3. A positioning rib 19 that cooperates with the positioning groove 21 is provided on one side of the inner side of the filter chamber 4. This can play a foolproof role and prevent the filter device 3 from being installed backwards.

[0015] The spraying mechanism consists of a spray pipe mounting bracket 12, an annular spray pipe 13, and a spray liquid injection pipe 8. The spray pipe mounting bracket 12 has multiple nozzles that are circumferentially and equally spaced on the inner wall of the upper pipe 5. The annular spray pipe 13 is mounted on the spray pipe mounting bracket 12 and has multiple spray heads 14 that are equally spaced on the annular spray pipe 13, which can make the spraying of reagents more uniform. The spray liquid injection pipe 8 passes through the upper pipe 5 and is connected to the annular spray pipe 13.

[0016] The working principle of this utility model is as follows: The filter device 3 of this utility model is installed inside the filter chamber 4 by plugging in. The filter device 3 can be directly removed from the filter chamber 4, which facilitates the disassembly of the filter element 18. A conical shield 16 is provided above the filter device 3, and an annular water collection tank 15 is provided between the conical shield 16 and the filter device 3. This structure makes it so that when the downward sprayed sodium hydroxide reagent comes into contact with the conical shield 16, it will gather towards the edge of the conical shield 16 and flow into the annular water collection tank 15. The reagent is not easy to flow into the filter device 3. In addition, since the lower edge of the conical shield 16 extends downward and blocks the air outlet 17, and the airflow moves from bottom to top, water mist is also not easy to enter the filter device 3. The handle 20 on the end face of the filter device 3 is used to assist in the disassembly and assembly of the filter device 3. The positioning groove 21 on the filter device 3, together with the positioning rib 19 on the filter chamber 4, can play a foolproof role and prevent the filter device 3 from being installed backwards. Using a ring-shaped spray pipe 13 and having multiple spray heads 14 at equal intervals on the ring-shaped spray pipe 13 can make the spraying of reagents more uniform.

[0017] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spray-type industrial flue gas carbon dioxide collection and purification device, comprising a lower pipe (1) and an upper pipe (5), characterized in that: A filter chamber (4) is provided between the lower pipe (1) and the upper pipe (5). One end of the filter chamber (4) is a filter element replacement port. A filter device (3) that can be removed from the filter element replacement port is installed inside the filter chamber (4). A detachable filter element (18) is provided on the inner side of the filter device (3). An annular water collection trough (15) is provided on the lower inner side of the upper pipe (5). The outer side of the annular water collection trough (15) is connected to the inner wall of the upper pipe (5). An air outlet (17) is provided on the upper inner side of the annular water collection trough (15). A conical shield (16) is installed on the top inner side of the annular water collection tank (15). An outlet (9) communicating with the annular water collection tank (15) is provided on the outer side of the upper pipe (5). The lower edge of the conical shield (16) extends downward and blocks the air outlet (17). A spraying mechanism is installed in the middle inner side of the upper pipe (5). A top cover (6) is installed on the top of the upper pipe (5). An exhaust fan (7) is installed in the center of the top cover (6). A demister (11) is installed at the bottom of the top cover (6).

2. The spray-type industrial flue gas carbon dioxide collection and purification device according to claim 1, characterized in that: The filter device (3) has a handle (20) fixed on its end face. The bottom of the filter device (3) is provided with a grid (22) for supporting the filter element (18). The filter device (3) has a positioning groove (21) on one side. The filter chamber (4) has a positioning rib (19) that cooperates with the positioning groove (21) on one side inside.

3. The spray-type industrial flue gas carbon dioxide collection and purification device according to claim 1, characterized in that: The spraying mechanism consists of a spray pipe mounting bracket (12), an annular spray pipe (13), and a spray liquid injection pipe (8). The spray pipe mounting bracket (12) has multiple nozzles that are circumferentially and equally spaced on the inner wall of the upper pipe (5). The annular spray pipe (13) is mounted on the spray pipe mounting bracket (12). The annular spray pipe (13) has multiple spray heads (14) that are equally spaced on it. The spray liquid injection pipe (8) passes through the upper pipe (5) and is connected to the annular spray pipe (13).

4. The spray-type industrial flue gas carbon dioxide collection and purification device according to claim 1, characterized in that: The lower pipe (1) is provided with an air inlet (2) and a liquid outlet (10).

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