Spray tower for waste gas treatment

Abstract

The utility model discloses a spray tower for waste gas treatment, which comprises a tower body, the outer wall of the tower body is fixedly communicated with an exhaust pipe, an L-shaped pipe and a spray liquid circulating pipe, the top of the L-shaped pipe is fixedly communicated with a rotational flow pipe, the outer wall of the rotational flow pipe is uniformly provided with a plurality of rotational flow holes, the outer wall of the rotational flow pipe is fixedly connected with a plurality of guide inclined plates, and the guide inclined plates are fixedly connected with the spray liquid circulating pipe. A protection frame is fixedly connected to the outer wall of the tower body, mounting holes are formed in the protection frame and the outer wall of the tower body, and spraying pipes are fixedly connected to the inner walls of the mounting holes. Waste gas forms a rotational flow rising path through the rotational flow hole and the guide inclined plate, so that the gas staying time is prolonged, the gas is uniformly distributed, and conditions are created for full gas-liquid contact; the reciprocating swing spray pipe driven by the motor is matched with the rotary joint, so that large-angle uniform coverage of spray liquid is realized, a coverage blind area in the tower or non-uniform liquid amount is avoided, the gas-liquid contact area is remarkably increased, and efficient mass transfer between pollutants and absorption liquid is ensured.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a spray tower for waste gas treatment. Background Technology

[0002] Spray towers for waste gas treatment are highly efficient and environmentally friendly devices widely used in industrial waste gas purification. Their core function is to effectively remove or neutralize particulate matter and gaseous pollutants (such as acidic gases, alkaline gases, and organic pollutants) in waste gas through counter-current contact between gas and liquid, utilizing physical absorption, chemical reactions, or a combination of both. This achieves the purpose of purifying the waste gas. Spray towers are also known as scrubbing towers, water washing towers, or purification towers, with names varying depending on the application and working principle.

[0003] In existing technologies, the spray nozzles of traditional spray towers are usually fixedly installed, resulting in a limited spraying range. This can easily lead to insufficient coverage of the spray liquid in some areas of the tower, while the liquid volume in other areas is too large, affecting the gas-liquid mass transfer efficiency. After the waste gas enters the tower, if there is a lack of effective guiding or swirling structure, its flow path is short, resulting in insufficient contact time with the spray liquid and reducing the purification effect. Therefore, we propose a spray tower for waste gas treatment to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a spray tower for waste gas treatment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A spray tower for waste gas treatment includes a tower body. An extraction pipe, an L-shaped pipe, and a spray liquid circulation pipe are fixedly interconnected on the outer wall of the tower body. A swirl tube is fixedly interconnected at the top of the L-shaped pipe. Multiple swirl holes are evenly distributed on the outer wall of the swirl tube. Multiple guide plates are fixedly connected to the outer wall of the swirl tube. A protective frame is fixedly connected to the outer wall of the tower body. Mounting holes are provided on both the protective frame and the outer wall of the tower body. A spray pipe is fixedly connected to the inner wall of the mounting holes. Multiple spray nozzles are evenly interconnected on the outer wall of the spray pipe. A rotary joint is fixedly interconnected at one end of the spray pipe. A rotating assembly is provided inside the protective frame.

[0007] Preferably, the rotating component includes a motor, the inner wall of the protective frame is fixedly connected to the outer wall of the motor, and the output shaft of the motor and the outer wall of the spray pipe are both fixedly fitted with synchronous pulleys. The outer walls of the two synchronous pulleys are meshed with the same synchronous transmission belt. By setting the rotating component, the spray pipe is driven to swing back and forth, which helps to spray the spray liquid evenly.

[0008] Preferably, a circulation pump is fixedly connected to one end of the spray liquid circulation pipe, and one end of the circulation pump is fixedly connected to the outer wall of the rotary joint. A centrifugal fan is fixedly connected to one end of the air extraction pipe.

[0009] Preferably, a support mesh plate is fixedly connected inside the tower body, and the packing is placed on top of the support mesh plate. The packing is supported by the support mesh plate, and a wire mesh can be added to the top of the packing to prevent the packing from shaking.

[0010] Preferably, a manhole is fixedly installed on the outer wall of the tower body, which facilitates the maintenance of the packing material.

[0011] Preferably, a bushing is fixedly connected inside the tower body, and the other end of the spray pipe is located inside the bushing. By setting the bushing to assist the spray pipe in rotating, the spray pipe reciprocates and swings, so that the sprayed water can evenly cover the packing and exhaust gas, promote gas-liquid combination, and improve mass transfer efficiency.

[0012] Preferably, a sealing bearing is fixedly sleeved on the outer wall of the spray pipe to increase the sealing between the spray pipe and the tower body. The sealing bearing is located in one of the mounting holes.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] In this design, the exhaust gas forms a swirling upward path through swirling holes and guide plates, extending the gas residence time and ensuring uniform distribution, thus creating conditions for sufficient gas-liquid contact. The motor-driven reciprocating oscillating spray pipe, in conjunction with a rotary joint, achieves uniform coverage of the spray liquid at a large angle, avoiding blind spots or uneven liquid volume within the tower, significantly increasing the gas-liquid contact area, and ensuring efficient mass transfer between pollutants and the absorbent liquid. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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 these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a spray tower for waste gas treatment proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a spray tower for waste gas treatment proposed in this utility model.

[0018] Figure 3 This is a partial cross-sectional structural diagram of a spray tower for waste gas treatment proposed in this utility model;

[0019] Figure 4 This utility model proposes a spray tower for waste gas treatment. Figure 2 A magnified structural diagram of part A in the diagram.

[0020] In the diagram: 1. Tower body; 2. Exhaust pipe; 3. L-shaped pipe; 4. Spray liquid circulation pipe; 5. Swirl pipe; 6. Swirl hole; 7. Guide inclined plate; 8. Support mesh plate; 9. Packing; 10. Manhole; 11. Bushing; 12. Protective frame; 13. Spray pipe; 14. Spray nozzle; 15. Sealed bearing; 16. Rotary joint; 17. Motor; 18. Synchronous pulley; 19. Synchronous transmission belt. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Depend on Figures 1-4 As shown, a spray tower for waste gas treatment is disclosed, comprising a tower body 1. An exhaust pipe 2, an L-shaped pipe 3, and a spray liquid circulation pipe 4 are fixedly connected to the outer wall of the tower body 1. A circulation pump is fixedly connected to one end of the spray liquid circulation pipe 4. One end of the circulation pump is fixedly connected to the outer wall of a rotary joint 16 through an existing pipeline. The tower body 1 contains spray liquid, and the spray liquid is selected according to the actual use of the neutralizing agent liquid. The circulation pump operates to transport the spray liquid in the tower body 1 to the rotary joint 16 through the spray liquid circulation pipe 4. A centrifugal fan is fixedly connected to one end of the exhaust pipe 2. The centrifugal fan operates to draw waste gas into a cyclone pipe 5 through the exhaust pipe 2 and the L-shaped pipe 3.

[0023] The top of the L-shaped tube 3 is fixedly connected to a swirl tube 5. Multiple swirl holes 6 are evenly opened on the outer wall of the swirl tube 5. Multiple guide plates 7 are fixedly connected to the outer wall of the swirl tube 5. The exhaust gas is discharged through the multiple swirl holes 6. Under the guidance of the multiple guide plates 7 arranged in a ring, the exhaust gas rises in a swirling manner. The inside of the tower body 1 is fixedly connected to a support mesh plate 8. The top of the support mesh plate 8 is filled with packing 9. A manhole 10 is fixedly installed on the outer wall of the tower body 1.

[0024] A protective frame 12 is fixedly connected to the outer wall of the tower body 1. Both the protective frame 12 and the outer wall of the tower body 1 are provided with mounting holes. A spray pipe 13 is fixedly connected to the inner wall of the mounting hole. A bushing 11 is fixedly connected to the inside of the tower body 1. The other end of the spray pipe 13 is located inside the bushing 11. Multiple spray nozzles 14 are evenly fixedly connected to the outer wall of the spray pipe 13. A sealing bearing 15 is fixedly fitted to the outer wall of the spray pipe 13. The sealing bearing 15 increases the sealing performance of the spray pipe 13. A rotary joint 16 is fixedly connected to one end of the spray pipe 13.

[0025] The protective frame 12 has a rotating component inside, which includes a motor 17. An existing encoder is installed on the outer wall of the output shaft of the motor 17. The encoder converts the rotation angle of the motor 17 into an electrical signal. These signals are fed back to the existing PLC controller to adjust the operating state of the motor 17, thereby realizing the control of the output swing of the motor 17.

[0026] The inner wall of the protective frame 12 is fixedly connected to the outer wall of the motor 17. The output shaft of the motor 17 and the outer wall of the spray pipe 13 are both fixedly fitted with synchronous pulleys 18. The outer walls of the two synchronous pulleys 18 are meshed with the same synchronous transmission belt 19. The spray pipe 13 is driven to rotate through the two synchronous pulleys 18 and the synchronous transmission belt 19.

[0027] Working principle: During operation, the centrifugal fan draws exhaust gas into the cyclone pipe 5 through the extraction pipe 2 and L-shaped pipe 3, and discharges it through multiple cyclone holes 6. Under the action of multiple guide plates 7, the exhaust gas rises in a swirling manner, which slows down the intake speed and increases the flow path of the exhaust gas, which helps the subsequent gas-liquid combination. The circulating pump transports the spray liquid in the tower body 1 to the rotary joint 16 through the spray liquid circulation pipe 4, and then enters the spray pipe 13 from the rotary joint 16. The spray liquid is sprayed out from multiple spray nozzles 14. The motor 17 reciprocates and drives the synchronous pulley 18 connected to it to rotate, which in turn drives another synchronous pulley 18 to rotate through the synchronous transmission belt 19, causing the spray pipe 13 to oscillate back and forth, so that the sprayed water can evenly cover the packing 9 and the exhaust gas, promote gas-liquid combination, and improve mass transfer efficiency.

[0028] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray tower for waste gas treatment, comprising a tower body (1), characterized in that, The outer wall of the tower body (1) is fixedly connected to an exhaust pipe (2), an L-shaped pipe (3), and a spray liquid circulation pipe (4). The top of the L-shaped pipe (3) is fixedly connected to a swirl pipe (5). The outer wall of the swirl pipe (5) is evenly provided with multiple swirl holes (6). The outer wall of the swirl pipe (5) is fixedly connected with multiple guide plates (7). The outer wall of the tower body (1) is fixedly connected to a protective frame (12). The protective frame (12) and the outer wall of the tower body (1) are both provided with installation holes. The inner wall of the installation hole is fixedly connected to a spray pipe (13). The outer wall of the spray pipe (13) is evenly connected with multiple spray nozzles (14). One end of the spray pipe (13) is fixedly connected to a rotary joint (16). The inside of the protective frame (12) is provided with a rotating component.

2. The spray tower for waste gas treatment according to claim 1, characterized in that, The rotating assembly includes a motor (17), the inner wall of the protective frame (12) is fixedly connected to the outer wall of the motor (17), and the output shaft of the motor (17) and the outer wall of the spray pipe (13) are both fixedly fitted with synchronous pulleys (18), and the outer walls of the two synchronous pulleys (18) are meshed with the same synchronous transmission belt (19).

3. A spray tower for waste gas treatment according to claim 1, characterized in that, One end of the spray liquid circulation pipe (4) is fixedly connected to a circulation pump, and one end of the circulation pump is fixedly connected to the outer wall of the rotary joint (16). One end of the air extraction pipe (2) is fixedly connected to a centrifugal fan.

4. A spray tower for waste gas treatment according to claim 1, characterized in that, The tower body (1) is fixedly connected to a support mesh plate (8), and a packing material (9) is placed on top of the support mesh plate (8).

5. A spray tower for waste gas treatment according to claim 1, characterized in that, A manhole (10) is fixedly installed on the outer wall of the tower body (1).

6. A spray tower for waste gas treatment according to claim 1, characterized in that, The tower body (1) is fixedly connected to a bushing (11), and the other end of the spray pipe (13) is located inside the bushing (11).

7. A spray tower for waste gas treatment according to claim 1, characterized in that, A sealed bearing (15) is fixedly sleeved on the outer wall of the spray pipe (13).

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