Refining kettle tail gas absorption tower

Abstract

The utility model discloses a refining kettle tail gas absorption tower which comprises an absorption tower body and a refining kettle body, an inner cavity is arranged in the absorption tower body, a gas inlet pipe communicated into the inner cavity is arranged on the refining kettle body, and the inner wall of the inner cavity is fixedly connected with a guide frame. And two fixed net racks are fixedly connected to the positions, close to the top, of the inner wall of the inner cavity, a mounting groove is formed in the bottom of the guide frame, a spraying pipe is fixedly connected into the mounting groove, and a spraying head is arranged at the bottom of the spraying pipe. According to the utility model, the plurality of guide frames are staggered up and down, so that an S-shaped circulation channel can be formed in the inner cavity, and the plurality of spraying pipes are arranged, so that tail gas can flow in the S-shaped circulation channel after entering the inner cavity, and then, the tail gas can be fully sprayed and flushed for many times; the spraying treatment liquid can be fully contacted and absorbed with the tail gas, so that the spraying and washing sufficiency of the tail gas can be ensured, and the tail gas treatment efficiency is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of absorption towers, in particular to a refining kettle tail gas absorption tower. Background Art

[0002] Refining kettle is a kind of container for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process are realized. Refining kettle is widely used in petroleum, chemical, rubber, pesticide, dye, medicine, food, and is used to complete the pressure vessels of vulcanization, nitration, hydrogenation, hydrocarbonization, polymerization, condensation and other processes, such as reactors, reaction pots, decomposition pots, polymerization kettles, etc. The materials are generally carbon manganese steel, stainless steel, zirconium, nickel-based alloys and other composite materials.

[0003] The existing announcement number is: CN219209481U, a refining kettle tail gas absorption tower, the tail gas treatment component includes an inner plate, a liquid inlet pipe, a rotating pipe, a horizontal atomizing nozzle, a connecting head, a vertical atomizing nozzle, a branch pipe, a drive motor, a drive shaft, an active bevel gear and a driven bevel gear. The inner plate is fixedly installed in the absorption tower, the liquid inlet pipe is fixedly installed on the absorption tower, the rotating pipe is rotatably installed on the inner plate, and the horizontal atomizing nozzle is fixedly installed on the rotating pipe. Considering its overall structure, although its structure can evenly spray the treatment liquid, it can only perform a single spray treatment on the tail gas, which is prone to insufficient tail gas spray treatment, and the overall treatment efficiency needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a refining kettle tail gas absorption tower.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a refining kettle tail gas absorption tower, comprising an absorption tower body and a refining kettle body, the absorption tower body is provided with an inner cavity, the refining kettle body is provided with an air inlet pipe connected to the inner cavity, the inner wall of the inner cavity is fixedly connected with a guide frame, and the inner wall of the inner cavity is fixedly connected with two fixed grids near the top, the bottom of the guide frame is provided with a mounting groove, a spray pipe is fixedly connected in the mounting groove, a nozzle is provided at the bottom of the spray pipe, the outer surface of the absorption tower body is fixedly connected with a diversion pipe, the spray pipe is connected with the diversion pipe through a connecting branch pipe, a foam capturing layer and an activated carbon filling layer are respectively provided in the two fixed grids, a liquid drain port and an air outlet are respectively provided at the bottom and top of the inner wall of the inner cavity, a draft fan is installed at the corresponding position of the top of the absorption tower body and the air outlet, and multiple guide frames and spray pipes are provided.

[0006] As a further description of the above technical solution:

[0007] One end of each of the guide frames is open, and the tops of the guide frames are inclined.

[0008] As a further description of the above technical solution:

[0009] The positions of two adjacent guide frames are symmetrically staggered.

[0010] As a further description of the above technical solution:

[0011] The plurality of spray pipes are correspondingly fixed on the bottoms of the plurality of guide frames, and one of the spray pipes is fixed on the bottom of one of the fixed grid frames.

[0012] As a further description of the above technical solution:

[0013] Each of the spray pipes is annular, and a plurality of spray heads are evenly distributed at the bottom of each spray pipe.

[0014] As a further description of the above technical solution:

[0015] The shunt pipe is provided with a liquid inlet pipe joint.

[0016] The utility model has the following beneficial effects:

[0017] The refining kettle tail gas absorption tower can form an S-shaped flow channel in the inner chamber through the arrangement of multiple guide frames that are staggered up and down. Combined with the arrangement of multiple spray pipes, after the tail gas enters the inner chamber, it can flow in this S-shaped flow channel and perform multiple sufficient spraying and flushing operations, so that the spraying treatment liquid can fully contact and absorb the tail gas, thereby ensuring the adequacy of the tail gas spraying and flushing, thereby effectively ensuring the tail gas treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a refining kettle tail gas absorption tower proposed in the utility model;

[0019] Figure 2 This is a front view of a refining kettle tail gas absorption tower proposed by the utility model;

[0020] Figure 3 This is a bottom view of the spray pipe structure of a refining kettle tail gas absorption tower proposed by the utility model.

[0021] Legend:

[0022] 1. Absorption tower body; 2. Inner chamber; 3. Refining kettle body; 4. Air inlet pipe; 5. Guide frame; 6. Fixed grid frame; 7. Mounting slot; 8. Spray pipe; 9. Nozzle; 10. Diverter pipe; 11. Connecting branch pipe; 12. Liquid inlet pipe joint; 13. Foam capture layer; 14. Activated carbon filling layer; 15. Drain port; 16. Air outlet; 17. Draft fan. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Reference Figure 1-3The utility model provides an embodiment: a refining kettle tail gas absorption tower, including an absorption tower body 1 and a refining kettle body 3, an inner chamber 2 is provided in the absorption tower body 1, and an air inlet pipe 4 connected to the inner chamber 2 is provided on the refining kettle body 3. The air inlet pipe 4 is used to guide the tail gas generated by the refining kettle into the absorption tower. A guide frame 5 is fixedly connected to the inner wall of the inner chamber 2. The function of the guide frame 5 is to guide the flow of air in the inner chamber 2. Two fixed grids are fixedly connected to the inner wall of the inner chamber 2 near the top. 6, the bottom of the guide frame 5 is provided with a mounting groove 7, the mounting groove 7 is fixedly connected with a spray pipe 8, the bottom of the spray pipe 8 is provided with a nozzle 9, the outer surface of the absorption tower body 1 is fixedly connected with a diversion pipe 10, the spray pipe 8 is connected to the diversion pipe 10 through a connecting branch pipe 11, the spray liquid enters the spray pipe 8 from the diversion pipe 10 through the connecting branch pipe 11, and is sprayed out from the nozzle 9 position, so that the exhaust gas in the inner chamber 2 can be sprayed. A total of two fixed grids 6 are respectively provided with a foam capture layer 13 and an active layer 14. The activated carbon filling layer 14 and the foaming layer 13 can adopt a foaming net, which can capture the foam of the gas after the spraying treatment. The activated carbon filling layer 14 can perform secondary adsorption purification treatment on the gas. The bottom and top of the inner wall of the inner chamber 2 are respectively provided with a drain port 15 and an air outlet 16. The top of the absorption tower body 1 is provided with an induced draft fan 17 corresponding to the air outlet 16. There are multiple guide frames 5 and spray pipes 8. One end of the multiple guide frames 5 is open, and the tops of the multiple guide frames 5 are inclined. The positions of the two adjacent guide frames 5 are symmetrically staggered. The multiple spray pipes 8 are fixed to the bottom of the multiple guide frames 5, and one of the spray pipes 8 is fixed to the bottom of one of the fixed grids 6. The multiple guide frames 5 that are staggered up and down and have one end open can form an S-shaped flow path in the inner chamber 2, so that the airflow can fully stay in the inner chamber 2. In this way, with the multiple spray pipes 8, multiple spray treatments of the exhaust gas can be achieved to ensure the adequacy of the gas spray treatment.

[0026] Each spray pipe 8 is annular, and a plurality of nozzles 9 are evenly distributed at the bottom of each spray pipe 8. The annular spray pipe 8 and the plurality of nozzles 9 can ensure the uniformity of the spray coverage of the spray liquid, thereby fully spraying the gas.

[0027] The shunt pipe 10 is provided with a liquid inlet pipe joint 12, which can be conveniently connected to the equipment for conveying the spray liquid, thereby stably conveying the spray liquid into the structure.

[0028] Working principle: When using the tail gas absorption tower of the refining kettle, the tail gas is guided into the inner chamber 2 through the air inlet pipe 4. At this time, the gas is located below the lowest guide frame 5. The spray liquid enters the spray pipe 8 from the diversion pipe 10 through the connecting branch pipe 11, and is sprayed out from the nozzle 9 to spray and flush the gas. When the induced draft fan 17 is working, it can drive the airflow so that the gas in the inner chamber 2 flows from bottom to top. The gas flows from the opening position on the lowest guide frame 5 to between the lowest guide frame 5 and the second-layer guide frame 5 from bottom to top, and the spray pipe 8 of the second layer continues to spray the gas for the second time. According to the same principle, the gas bends and flows upward in the inner chamber 2, so that the gas can be sprayed and flushed at least multiple times, thereby ensuring the adequacy of the gas spray and flushing treatment.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refining kettle tail gas absorption tower, comprising an absorption tower body (1) and a refining kettle body (3), characterized in that: The absorption tower body (1) is provided with an inner chamber (2), the refining kettle body (3) is provided with an air inlet pipe (4) connected to the inner chamber (2), the inner wall of the inner chamber (2) is fixedly connected with a guide frame (5), and the inner wall of the inner chamber (2) is fixedly connected with two fixed grids (6) near the top, the bottom of the guide frame (5) is provided with a mounting groove (7), the mounting groove (7) is fixedly connected with a spray pipe (8), the bottom of the spray pipe (8) is provided with a nozzle (9), and the absorption tower body (1) is provided with a nozzle (9). A shunt pipe (10) is fixedly connected to the outer surface, and the spray pipe (8) is connected to the shunt pipe (10) through a connecting branch pipe (11). A foam capture layer (13) and an activated carbon filling layer (14) are respectively provided in the two fixed grids (6). A liquid discharge port (15) and an air outlet (16) are respectively provided at the bottom and top of the inner wall of the inner chamber (2). An induced draft fan (17) is installed at the corresponding position of the top of the absorption tower body (1) and the air outlet (16). The guide frame (5) and the spray pipe (8) are provided in plurality.

2. A refining kettle tail gas absorption tower according to claim 1, characterized in that: One end of the plurality of guide frames (5) is in an open form, and the tops of the plurality of guide frames (5) are arranged in an inclined manner.

3. The refining kettle tail gas absorption tower according to claim 1, characterized in that: The positions of the two adjacent guide frames (5) are symmetrically staggered.

4. The refining kettle tail gas absorption tower according to claim 1, characterized in that: The plurality of spray pipes (8) are correspondingly fixed to the bottoms of the plurality of guide frames (5), and one of the spray pipes (8) is fixed to the bottom of one of the fixed grid frames (6).

5. The refining kettle tail gas absorption tower according to claim 1, characterized in that: Each of the spray pipes (8) is annular, and a plurality of spray heads (9) are evenly distributed at the bottom of each spray pipe (8).

6. The refining kettle tail gas absorption tower according to claim 1, characterized in that: The diversion pipe (10) is provided with a liquid inlet pipe joint (12).

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