A tail gas recovery column with easy replacement of absorbent liquid

Abstract

This utility model relates to the field of exhaust gas treatment technology, specifically to an exhaust gas recovery tower that facilitates the replacement of absorbent liquid. It includes: a recovery tower body with a top box fixedly connected to its top; two sides of the bottom of the top box are rotatably connected to gas supply pipes via bearings, the top of the gas supply pipes communicating with the inner cavity of the top box, and multiple air outlet holes axially formed on the surface of the gas supply pipes; an air inlet pipe is fixedly connected to the center of the top of the top box, and the bottom of the air inlet pipe is connected to a laterally movable gas supply assembly; partition plates are fixed to the top and bottom of the inner cavity of the recovery tower body, dividing the recovery tower body into independent working chambers. Through the dynamic movement design of the gas supply assembly, including the cooperation of a motor, threaded rod, threaded block, and sliding column and sleeve, the alignment of the connecting pipe and the target gas supply pipe can be quickly adjusted when replacing the absorbent liquid, ensuring continuous operation of the exhaust gas treatment process and completely avoiding the risks of production interruption and uncontrolled exhaust gas emissions caused by shutdowns of traditional equipment.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, specifically to an exhaust gas recovery tower that facilitates the replacement of the absorbent liquid. Background Technology

[0002] Exhaust gas recovery devices are key equipment in the environmental protection field. Their core function is to purify industrial waste gas through absorbent liquid, enabling the waste gas to be reused or discharged in compliance with standards. Existing exhaust gas recovery towers are typically designed with a single-chamber structure. After long-term use, the absorbent liquid becomes saturated with adsorbed pollutants and becomes ineffective, requiring periodic replacement. However, traditional recovery towers face the following technical bottlenecks when replacing the absorbent liquid:

[0003] When the absorbent needs to be replaced due to saturation or failure, the recovery tower must be shut down. Specifically, existing equipment typically uses fixed piping and static connection structures, requiring an interruption of the waste gas treatment process during absorbent replacement. Shutdowns not only reduce production efficiency but may also increase equipment wear and tear and shorten its lifespan due to frequent start-ups and shutdowns. Furthermore, the direct emission of untreated waste gas during shutdowns may pose environmental risks, further limiting the practicality and economic viability of existing equipment.

[0004] Although some improved designs attempt to achieve continuous operation through alternating operation of multiple chambers, their complex structure and high maintenance costs fail to fundamentally solve the problem of inconvenient absorbent replacement. Therefore, how to achieve efficient absorbent replacement without downtime has become a critical technical bottleneck that urgently needs to be overcome in this field. Utility Model Content

[0005] This invention provides a tail gas recovery tower that facilitates the replacement of the absorbent liquid, aiming to achieve continuous operation of the waste gas treatment process during the replacement of the absorbent liquid, thereby significantly improving equipment efficiency and ease of use.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A tail gas recovery tower with easy-to-replace absorbent includes:

[0008] The main body of the recycling tower has a top box fixedly connected to its top;

[0009] The bottom of the top box is connected to two sides of the air supply pipe, the top of the air supply pipe is connected to the inner cavity of the top box, and multiple air outlet holes are opened on the surface of the air supply pipe along the axial direction.

[0010] An air inlet pipe is fixedly connected to the center of the top of the top box, and a horizontally movable air delivery component is connected to the bottom of the air inlet pipe.

[0011] The top and bottom of the main body of the recycling tower are respectively fixed with partition plates, which divide the main body of the recycling tower into independent working chambers.

[0012] Furthermore, the gas delivery assembly includes a hose, a connecting pipe, a fixing plate, a motor, a threaded rod, and a threaded block, wherein:

[0013] The top end of the hose is connected to the air inlet pipe, and the bottom end is connected to the connecting pipe. The bottom of the connecting pipe is fitted to the bottom of the inner cavity of the top box.

[0014] The fixing plate is fixed to the surface of the connecting pipe, and the motor is installed on the right side of the top box, with its output shaft connected to a threaded rod.

[0015] The threaded rod extends laterally through the top box and is threadedly engaged with the threaded block. The back of the threaded block is fixedly connected to the fixing plate.

[0016] Furthermore, a housing is bolted to the bottom right side of the top box, and a through groove is opened on the right side of the housing, with the motor located inside the housing cavity.

[0017] Furthermore, sliding columns are bolted to both sides of the inner cavity of the top box, and sliding sleeves are slidably connected to the surface of the sliding columns. The bottom of the sliding sleeves is bolted to the top of the threaded block.

[0018] Furthermore, a flow guide seat is bolted to the bottom of the inner cavity of the top box, and the opposite side of the flow guide seat contacts both sides of the partition plate.

[0019] Furthermore, a controller for controlling the motor is bolted to the top right side of the top box, and inlet pipes are connected to the top of both sides of the top box, while drain pipes are connected to the bottom of both sides of the top box.

[0020] The beneficial effects achieved by this utility model are as follows:

[0021] Through the dynamic movement design of the gas delivery components, including the cooperation of the motor, threaded rod, threaded block, and sliding column and sliding sleeve, the alignment of the connecting pipe and the target gas delivery pipe can be quickly adjusted when changing the absorbent, ensuring the continuous operation of the waste gas treatment process and completely avoiding the risks of production interruption and uncontrolled waste gas emissions caused by shutdown of traditional equipment.

[0022] The precise control of the motor-driven threaded rod enables the lateral movement of the connecting pipe, eliminating the need for manual intervention and reducing labor intensity.

[0023] The design of the flow guide seat and the removable partition plate not only accelerates the flow of absorbent and improves replacement efficiency, but also allows for chamber cleaning or maintenance by removing the partition plate, reducing maintenance difficulty. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a three-dimensional sectional view of the main structure of the top box and the recovery tower of this utility model;

[0027] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0028] Figure 4 This utility model Figure 2 An enlarged view of the structure at point A shown.

[0029] In the diagram, 1. Main body of the recovery tower; 2. Top box; 3. Gas delivery pipe; 4. Gas inlet pipe; 5. Gas delivery assembly; 51. Hose; 52. Connecting pipe; 53. Fixing plate; 54. Motor; 55. Threaded rod; 56. Threaded block; 6. Divider plate; 7. Shell; 8. Sliding column; 9. Sliding sleeve; 10. Flow guide seat.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] 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.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] like Figures 1-4 As shown, a tail gas recovery tower with easy-to-replace absorbent includes:

[0035] The main body of the recovery tower 1 has a top box 2 fixedly connected to its top; the main body of the recovery tower 1 is the core container for exhaust gas treatment, carrying the absorbent liquid to react with the exhaust gas to achieve exhaust gas purification.

[0036] The waste gas enters the main body 1 of the recovery tower through the gas transmission pipe 3, and comes into full contact with the absorbent liquid inside the tower. The harmful components are absorbed or chemically reacted and transformed into harmless substances, and the clean gas is discharged through the top.

[0037] The bottom sides of the top box 2 are rotatably connected to gas supply pipes 3 via bearings. The top of the gas supply pipes 3 communicates with the inner cavity of the top box 2, and multiple gas outlet holes are opened along the axial direction on the surface of the gas supply pipes 3. The gas supply pipes 3 guide the waste gas into the main body 1 of the recovery tower and ensure uniform gas distribution.

[0038] The gas delivery pipe 3 is rotatably connected to the top box 2 via bearings, and multiple gas outlet holes are opened on its surface to allow the waste gas to enter the inner chamber of the tower in a dispersed form, thereby improving the contact efficiency with the absorbent liquid. The rotating design facilitates the adjustment of the gas delivery position to adapt to the needs of absorbent liquid replacement.

[0039] An air inlet pipe 4 is fixedly connected to the center of the top of the top chamber 2, and a laterally movable gas delivery assembly 5 is connected to the bottom of the air inlet pipe 4. The top chamber 2 coordinates the gas input and absorbent replacement process.

[0040] The intake pipe 4 introduces external exhaust gas into the inner cavity of the top box 2. The intake pipe 4 is connected to the hose 51 of the air delivery assembly 5, serving as the initial channel for exhaust gas to enter the system. The flexible connection of the hose 51 accommodates the movement of the air delivery assembly 5.

[0041] The top box 2 serves as the gas distribution center, receiving external exhaust gas through the intake pipe 4 and dynamically adjusting the gas flow direction through the gas delivery component 5. It also integrates control components, including a motor 54 and a controller, to achieve automated operation.

[0042] The top and bottom of the inner cavity of the recycling tower body 1 are respectively fixed with partition plates 6, which divide the recycling tower body 1 into independent working chambers.

[0043] The partition plate 6 divides the main body 1 of the recovery tower into independent chambers, supporting alternating operation modes. When the partition plate 6 physically isolates the two chambers, it allows the other side to continuously process waste gas while the absorbent is being replaced on one side.

[0044] The gas delivery assembly 5 includes a hose 51, a connecting pipe 52, a fixing plate 53, a motor 54, a threaded rod 55, and a threaded block 56. The top end of the hose 51 communicates with the air inlet pipe 4, and the bottom end communicates with the connecting pipe 52. The bottom of the connecting pipe 52 is flush with the bottom of the inner cavity of the top chamber 2. The hose 51 connects the air inlet pipe 4 and the connecting pipe 52, providing a flexible channel for gas delivery. The connecting pipe 52 dynamically adjusts its position to switch gas input to different chambers.

[0045] The fixing plate 53 is fixed to the surface of the connecting pipe 52, and the motor 54 is installed on the right side of the top box 2, with its output shaft connected to the threaded rod 55; the fixing plate 53 fixes the connecting pipe 52 and transmits the driving force of the motor 54.

[0046] The threaded rod 55 extends laterally through the top box 2 and is threadedly engaged with the threaded block 56. The back of the threaded block 56 is fixedly connected to the fixing plate 53.

[0047] The motor 54 drives the threaded rod 55 to rotate, and through the connection between the threaded block 56 and the fixed plate 53, pushes the connecting pipe 52 to move laterally to the target gas supply pipe 3 position, thereby realizing the switching of the waste gas input chamber and avoiding the need to stop the machine to replace the absorbent.

[0048] A housing 7 is bolted to the bottom right side of the top box 2. A through slot is provided on the right side of the housing 7, and the motor 54 is located inside the housing 7. The housing 7 protects the motor 54 from external impacts or environmental influences.

[0049] Both sides of the inner cavity of the top box 2 are bolted with sliding columns 8, and the surface of the sliding column 8 is slidably connected with a sliding sleeve 9. The bottom of the sliding sleeve 9 is bolted to the top of the threaded block 56.

[0050] The sliding column 8 and the sliding sleeve 9 restrict the movement trajectory of the threaded block 56, ensuring the smooth operation of the gas delivery assembly 5. The sliding column 8 is fixed on both sides of the inner cavity of the top box 2, and the sliding sleeve 9 is connected to the top of the threaded block 56. When the threaded rod 55 rotates, the sliding sleeve 9 slides along the sliding column 8 to prevent the threaded block 56 from shifting or shaking.

[0051] A flow guide seat 10 is bolted to the bottom of the inner cavity of the top chamber 2, and the opposite side of the flow guide seat 10 contacts both sides of the partition plate 6. The flow guide seat 10 accelerates the discharge and flow of the absorbent liquid, improving replacement efficiency. The flow guide seat 10 is fixed to the bottom of the top chamber 2, and its inclined or arc-shaped design guides the absorbent liquid to flow quickly to the drain pipe, reducing residue. At the same time, it forms a seal with the partition plate 6 to prevent liquid backflow.

[0052] A controller for controlling the motor 54 is bolted to the top right side of the top box 2. Both sides of the top box 2 are connected to liquid inlet pipes, and both sides of the bottom of the top box 2 are connected to liquid outlet pipes.

[0053] The inlet pipe and outlet pipe are used to inject new absorbent and discharge old absorbent, respectively. The inlet pipe is located at the top of both sides of the top chamber 2, and the input of new absorbent is controlled by a valve; the outlet pipe is located at the bottom, and after connecting to the chamber, waste liquid is quickly discharged through a switch valve.

[0054] When the absorbent needs to be replaced, the user turns on the motor 54. The motor 54 drives the threaded rod 55 to rotate, which in turn drives the threaded block 56 to move to the right. The threaded block 56 drives the fixing plate 53 to move to the right, which in turn drives the connecting pipe 52 to move to the right, aligning the connecting pipe 52 with the gas supply pipe 3 on the right side. Then, the user opens the drain pipe to discharge the absorbent from the left side of the inner cavity of the recovery tower body 1. The absorbent is then transported back into the recovery tower body 1 from the inlet pipe on the left side of the recovery tower body 1, thus completing the replacement of the absorbent.

[0055] Through the structural design of hose 51, connecting pipe 52, fixing plate 53, motor 54, threaded rod 55 and threaded block 56, when the absorbent needs to be replaced, the connecting pipe 52 is moved to the right so that the connecting pipe 52 is aligned with the gas supply pipe 3 on the right side, which makes it easy for the user to replace the absorbent on the left side of the recovery tower body 1 without stopping the machine.

[0056] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A tail gas recovery column that facilitates replacement of an absorbent liquid, characterized by, include: The main body of the recycling tower (1) has a top box (2) fixedly connected to its top; The top box (2) has air supply pipes (3) connected to both sides of its bottom. The top of the air supply pipes (3) is connected to the inner cavity of the top box (2). Multiple air outlet holes are opened on the surface of the air supply pipes (3) along the axial direction. The top box (2) is fixedly connected to the center of the top with an air inlet pipe (4), and the bottom of the air inlet pipe (4) is connected to a horizontally movable air delivery assembly (5). The top and bottom of the inner cavity of the main body (1) of the recovery tower are respectively fixed with partition plates (6), which divide the main body (1) of the recovery tower into independent working chambers.

2. The tail gas recovery column with easy replacement of the absorption liquid according to claim 1, characterized in that: The gas delivery assembly (5) includes a hose (51), a connecting pipe (52), a fixing plate (53), a motor (54), a threaded rod (55), and a threaded block (56), wherein: The top end of the hose (51) is connected to the air inlet pipe (4), and the bottom end is connected to the connecting pipe (52). The bottom of the connecting pipe (52) is in contact with the bottom of the inner cavity of the top box (2). The fixing plate (53) is fixed to the surface of the connecting pipe (52), and the motor (54) is installed on the right side of the top box (2), with its output shaft connected to the threaded rod (55); The threaded rod (55) passes through the top box (2) laterally and is threadedly engaged with the threaded block (56). The back of the threaded block (56) is fixedly connected to the fixing plate (53).

3. The tail gas recovery column with easy replacement of the absorption liquid according to claim 2, characterized in that: The bottom right side of the top box (2) is bolted with a housing (7), and a through groove is opened on the right side of the housing (7). The motor (54) is located in the inner cavity of the housing (7).

4. The tail gas recovery column with easy replacement of the absorption liquid according to claim 1, characterized in that: Both sides of the inner cavity of the top box (2) are bolted with sliding columns (8), and the surface of the sliding column (8) is slidably connected with a sliding sleeve (9). The bottom of the sliding sleeve (9) is bolted to the top of the threaded block (56).

5. The tail gas recovery column with easy replacement of the absorption liquid according to claim 1, characterized in that: A flow guide seat (10) is bolted to the bottom of the inner cavity of the top box (2), and the opposite side of the flow guide seat (10) contacts both sides of the partition plate (6).

6. The tail gas recovery column with easy replacement of the absorption liquid according to claim 1, characterized in that: A controller for controlling the motor (54) is bolted to the top right side of the top box (2). Inlet pipes are connected to the top of both sides of the top box (2), and drain pipes are connected to the bottom of both sides of the top box (2).

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