Coal gangue sintered brick furnace tail gas treatment device

Abstract

The utility model discloses a coal gangue sintered brick furnace tail gas treatment device relates to tail gas treatment field, including tail gas treatment jar, tail gas exhaust pipe and tail gas exhaust pipe, the upper end of tail gas treatment jar is provided with upper treatment jar, and the lower extreme of tail gas treatment jar is provided with discharge hopper, and tail gas treatment jar is linked together with discharge hopper, and tail gas exhaust pipe sets up in the side of discharge hopper. In the utility model, based on using ultrasonic wave, improve tail gas purification efficiency, and reduce the replacement period of activated carbon plate, and the particulate matter of shock fall can be collected alone, and be suitable for coal gangue sintering time tail gas treatment quantity big planning production in use.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment, and in particular to an exhaust gas treatment device for a coal gangue sintering brick furnace. Background Technology

[0002] In the production process of coal gangue sintered bricks, the flue gas contains a large amount of particulate matter and harmful gases. These pollutants not only cause serious environmental pollution but also affect the health of workers. Traditional flue gas treatment methods typically include wet dust collection, baghouse dust collection, and activated carbon adsorption, but these methods have the following problems: First, the dust removal efficiency is limited: traditional wet dust removal and bag dust removal methods are not effective at removing fine particulate matter and are difficult to meet increasingly stringent environmental protection standards. Second, activated carbon plates are under heavy load: Although activated carbon adsorption technology has a good removal effect on harmful gases, activated carbon plates are easily clogged by particulate matter and need to be replaced frequently, which increases maintenance costs and workload. Third, particulate matter collection is difficult: traditional exhaust gas treatment devices are unable to effectively collect the shaken-off particulate matter, causing it to accumulate inside the equipment and affecting its normal operation.

[0003] Therefore, it is necessary to propose a tail gas treatment device for coal gangue sintering brick furnaces to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a tail gas treatment device for coal gangue sintering brick furnaces, so as to solve the problems of limited dust removal efficiency, heavy load on activated carbon plates, and difficulty in collecting particulate matter in traditional tail gas treatment devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tail gas treatment device for a coal gangue sintering brick furnace, comprising a tail gas treatment tank, a tail gas inlet pipe, and a tail gas outlet pipe. The upper end of the tail gas treatment tank is provided with an upper treatment tank, and the lower end of the tail gas treatment tank is provided with a discharge hopper. The tail gas treatment tank is connected to the discharge hopper, and the tail gas inlet pipe is provided on the side of the discharge hopper. The tail gas inlet pipe is used to connect to the tail gas outlet of the coal gangue sintering brick furnace, and the tail gas is discharged into the tail gas treatment tank for treatment. The exhaust gas treatment tank has a second pipe inside, and there are multiple second pipes arranged in a matrix. Above the exhaust gas treatment tank, there is an upper treatment tank. An ultrasonic generator is installed on the upper side of the exhaust gas treatment tank. The upper treatment tank has a first pipe inside, and there are multiple first pipes connected to the ultrasonic generator. The multiple first pipes correspond to the upper part of the multiple second pipes.

[0006] Preferably, the inner wall of the first pipe is coated with a sound-absorbing material or: Multiple V-shaped grooves, triangular grooves, or arc-shaped grooves are provided on the inner wall of the first pipe.

[0007] Preferably, the second pipe is provided with a diffusion section made of transparent or translucent polycarbonate material.

[0008] Preferably, the second pipe is provided with an inner ring and a vertical rod, and multiple vertical rods and an inner ring are provided. The multiple vertical rods are distributed at equal angles around the axis of the second pipe and are attached to the inner wall of the second pipe. Multiple annular rings are distributed along the height direction of the second pipe and are simultaneously fixedly welded to the inner ring of the multiple vertical rods.

[0009] Preferably, multiple rings are respectively disposed above the diffusion section on the first pipe.

[0010] Preferably, an activated carbon plate is installed at the upper end of the exhaust gas treatment tank, and the upper ends of multiple second pipes are connected to the activated carbon plate. The upper ends of the second pipes are open, and the lower ends are sealed.

[0011] Preferably, the exhaust pipe is connected to the side of the upper treatment tank, and a suction pump is connected to the exhaust pipe, with a chimney pipe installed on the suction pump.

[0012] Preferably, the lower end of the discharge hopper is provided with a discharge pipe, and a manual switch valve is provided on the discharge pipe.

[0013] The technical effects and advantages of this utility model are as follows: 1. By setting up multiple second pipes inside the exhaust gas treatment tank and introducing ultrasonic waves into each second pipe, particulate matter in the exhaust gas can be effectively shaken off. The high-frequency vibration of the ultrasonic waves can separate the particulate matter from the airflow, thereby improving the particulate matter removal efficiency. 2. Ultrasonic waves can not only shake off particulate matter in exhaust gas, but also vibrate activated carbon plates, making it easier for particulate matter attached to their surface to detach, reducing the clogging of activated carbon plates, extending their service life, and reducing the frequency of replacement. 3. The shaken-off particles can be collected separately and discharged through the discharge hopper and discharge pipe, which facilitates regular cleaning, keeps the inside of the equipment clean, and ensures the normal operation of the equipment; 4. Because ultrasound can effectively dislodge particulate matter, it reduces the frequency of activated carbon plate replacement, thereby reducing maintenance costs and workload. 5. The tail gas treatment device for coal gangue sintering brick furnace of this utility model effectively improves the tail gas purification efficiency and reduces the burden on the activated carbon plate by introducing ultrasonic technology, realizing the efficient collection and cleaning of particulate matter. The device has a simple and practical structure, reduces maintenance costs, has high environmental protection performance, and is suitable for large-scale application in the production process of coal gangue sintering bricks. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the tail gas treatment device for coal gangue sintering brick furnace according to this utility model.

[0015] Figure 2 This is a schematic diagram of the tail gas treatment device for coal gangue sintering brick furnace of this utility model from another perspective.

[0016] Figure 3 This is a schematic diagram of the internal structure of the tail gas treatment device for coal gangue sintering brick furnace of this utility model.

[0017] Figure 4 This is a schematic diagram of the internal structure of the second pipe of this utility model.

[0018] In the diagram: 1. Exhaust gas treatment tank; 2. Exhaust gas inlet pipe; 3. Exhaust gas outlet pipe; 4. Upper treatment tank; 5. Cover plate; 6. Ultrasonic generator; 7. First pipe; 8. Discharge hopper; 9. Discharge pipe; 10. Suction pump; 11. Chimney pipe; 12. Second pipe; 13. Vertical rod; 14. Ring; 15. Activated carbon plate. Detailed Implementation

[0019] This utility model provides, for example Figures 1-4 The diagram shows a tail gas treatment device for a coal gangue sintering brick furnace.

[0020] refer to Figure 1 As shown, the tail gas treatment device for the coal gangue sintering brick furnace includes a tail gas treatment tank 1, a tail gas inlet pipe 2, and a tail gas outlet pipe 3. An upper treatment tank 4 is provided at the upper end of the tail gas treatment tank 1, and a discharge hopper 8 is provided at the lower end of the tail gas treatment tank 1. The tail gas treatment tank 1 is connected to the discharge hopper 8. The tail gas inlet pipe 2 is provided on the side of the discharge hopper 8. The tail gas inlet pipe 2 is used to connect to the tail gas outlet of the coal gangue sintering brick furnace. The tail gas is discharged into the tail gas treatment tank 1 for treatment.

[0021] refer to Figure 1 and Figure 3 As shown, a second pipe 12 is provided inside the exhaust gas treatment tank 1. Multiple second pipes 12 are provided and arranged in a matrix. An upper treatment tank 4 is also provided above the exhaust gas treatment tank 1. A cover plate 5 is provided on the upper treatment tank 4 for maintenance and replacement of activated carbon plate 15. An ultrasonic generator 6 is installed on the upper side of the exhaust gas treatment tank 1. A first pipe 7 is provided inside the upper treatment tank 4. Multiple first pipes 7 are provided and connected to the ultrasonic generator 6. The ultrasonic generator 6 can emit ultrasonic waves, which are guided into the first pipes 7. The multiple first pipes 7 correspond to the upper part of the multiple second pipes 12. The lower end of the first pipe 7 is connected to the corresponding second pipe 12 through a branch pipe. The first pipe 7 can guide the ultrasonic waves into the corresponding second pipe 12. In this invention, the first conduit 7 has been improved so that it can guide ultrasonic waves, and the ultrasonic waves are less likely to diffuse from inside the first conduit 7 to the outside; the specific improvements include: The first method involves coating the inner wall of the first pipe 7 with a sound-absorbing material, including polyurethane foam, rubber, or other sound-absorbing coatings. The sound-absorbing material can absorb and attenuate ultrasonic energy, reducing the reflection and diffusion of ultrasonic waves within the pipe. The sound-absorbing material absorbs sound wave energy through its internal microporous structure, converting it into heat energy, thereby reducing the propagation of sound waves. This effectively reduces the diffusion of ultrasonic waves from inside the pipe to the outside, concentrating the ultrasonic waves inside the pipe. The second type is made of a hard material such as stainless steel or plastic. Multiple V-shaped grooves, triangular grooves or arc grooves are set on the inner wall of the first pipe 7, which can reflect the ultrasonic waves multiple times, so that the ultrasonic waves are evenly distributed in the pipe and reduce the diffusion to the outside of the first pipe 7.

[0022] This invention also improves the second pipe 12, enabling the ultrasonic waves in the second pipe 12 to diffuse outward, thereby vibrating the particulate matter in the exhaust gas, such as: First, the second pipe 12 is improved using the improvement method of the first pipe 7. Then, a diffusion section is provided on the second pipe 12. The diffusion section is made of transparent or semi-transparent polycarbonate material, which has good permeability to ultrasonic waves, so that the ultrasonic waves inside the first pipe 7 can be smoothly diffused to the outside through the pipe wall.

[0023] refer to Figures 1 to 4 As shown, a ring 14 and a vertical rod 13 are provided inside the second pipe 12. Multiple vertical rods 13 and rings 14 are provided. The multiple vertical rods 13 are distributed at equal angles around the axis of the second pipe 12 and are attached to the inner wall of the second pipe 12. Multiple rings 14 are distributed along the height direction of the second pipe 12 and are simultaneously fixedly welded to the inner ring of the multiple vertical rods 13. The vertical rods 13 serve to support the rings 14, facilitating the assembly and disassembly of the rings 14, and also guide the ultrasonic waves in the second pipe 12, so that the ultrasonic waves in the second pipe 12 are evenly distributed.

[0024] Furthermore, multiple rings 14 are respectively positioned above the diffusion section on the first pipe 7. When the ultrasonic wave is guided by the first pipe 7 into the second pipe 12, it is blocked by the multiple rings 14 and divided into multiple streams. The multiple ultrasonic waves are transmitted from the corresponding diffusion sections, so that the ultrasonic waves are distributed in multiple layers along the height direction of the second pipe 12. Each layer of ultrasonic waves diffuses radially, which can fully shake off the particulate matter in the exhaust gas around the second pipe 12.

[0025] An activated carbon plate 15 is installed at the upper end of the exhaust gas treatment tank 1. Multiple second pipes 12 are connected to the activated carbon plate 15 at their upper ends. The upper ends of the second pipes 12 are open, and the lower ends are sealed. An exhaust gas discharge pipe 3 is connected to the side of the upper treatment tank 4. A suction pump 10 is connected to the exhaust gas discharge pipe 3, and a chimney pipe 11 is installed on the suction pump 10. During operation, the exhaust gas discharge pipe 2 is connected to the exhaust gas discharge end of the coal gangue sintering brick furnace. The suction pump 10 and the ultrasonic generator 6 are started, and the suction pump 10 generates suction, causing the exhaust gas to... After passing through the exhaust gas inlet pipe 2, the second pipe 12 inside the exhaust gas treatment tank 1, the first pipe 7, the exhaust gas outlet pipe 3, the suction pump 10, and the chimney pipe 11, the exhaust gas is discharged outward. When the exhaust gas passes around the second pipe 12, the particulate matter is shaken off by ultrasonic waves. Then it is filtered by the first pipe 7 before being discharged. Under the action of ultrasonic waves multiple times, more than 90% of the particulate matter in the exhaust gas can be shaken off, which greatly reduces the burden on the first pipe 7, allowing the first pipe 7 to be used for a longer time and reducing the frequency of manual replacement and maintenance of the first pipe 7.

[0026] It is worth mentioning that, since the upper end of the second pipe 12 is open and the branch pipes on the first pipe 7 are set towards the upper part of the second pipe 12, the ultrasonic waves transmitted by the first pipe 7 can not only enter the second pipe 12, but also vibrate the exhaust gas above the activated carbon plate 15. This causes the exhaust gas filtered by the activated carbon plate 15 to be vibrated again, and the activated carbon plate 15 itself to be vibrated, causing the particulate matter in the exhaust gas to be shaken off again, reducing leakage. Furthermore, because the activated carbon plate 15 is vibrated by ultrasonic waves, the particulate matter on the activated carbon plate 15 is easily detached. The particulate matter attached to the upper surface of the activated carbon plate 15 is easily shaken off and collected in the second pipe 12, which can be cleaned periodically. The particulate matter attached to the lower surface of the activated carbon plate 15 is easily shaken off and placed inside the lower end of the exhaust gas treatment tank 1, thus fully ensuring the pass rate and filtration effect of the activated carbon plate 15 for the exhaust gas.

[0027] It should be noted that a discharge pipe 9 is provided at the lower end of the discharge hopper 8, and a manual switch valve is provided on the discharge pipe 9. The particulate matter that falls into the lower end of the exhaust gas treatment tank 1 eventually enters the discharge hopper 8. The particulate matter in the discharge hopper 8 can be cleaned when the manual switch valve is opened.

[0028] In summary, this invention improves exhaust gas purification efficiency and reduces the replacement cycle of activated carbon plate 15 by using ultrasound. The dislodged particles can also be collected separately, making it suitable for large-scale production with large exhaust gas treatment volumes during coal gangue sintering.

Claims

1. A tail gas treatment device for a coal gangue sintering brick furnace, comprising a tail gas treatment tank (1), a tail gas inlet pipe (2), and a tail gas outlet pipe (3), characterized in that: The upper end of the tail gas treatment tank (1) is provided with an upper treatment tank (4), and the lower end of the tail gas treatment tank (1) is provided with a discharge hopper (8). The tail gas treatment tank (1) is connected to the discharge hopper (8). The tail gas discharge pipe (2) is provided on the side of the discharge hopper (8). The tail gas discharge pipe (2) is used to connect to the tail gas discharge end of the coal gangue sintering brick furnace. The tail gas is discharged into the tail gas treatment tank (1) for treatment. The exhaust gas treatment tank (1) is provided with a second pipe (12) inside. There are multiple second pipes (12) arranged in a matrix. An upper treatment tank (4) is also provided above the exhaust gas treatment tank (1). An ultrasonic generator (6) is installed on the upper side of the exhaust gas treatment tank (1). A first pipe (7) is provided inside the upper treatment tank (4). There are multiple first pipes (7). The multiple first pipes (7) are connected to the ultrasonic generator (6). The multiple first pipes (7) correspond to the upper part of the multiple second pipes (12).

2. The tail gas treatment device for a coal gangue sintering brick furnace according to claim 1, characterized in that: The inner wall of the first pipe (7) is coated with sound-absorbing material or: Multiple V-shaped grooves, triangular grooves or arc-shaped grooves are provided on the inner wall of the first pipe (7).

3. The tail gas treatment device for a coal gangue sintering brick furnace according to claim 1, characterized in that: The second pipe (12) is provided with a diffusion section made of transparent or semi-transparent polycarbonate material.

4. The tail gas treatment device for a coal gangue sintering brick furnace according to claim 3, characterized in that: The second pipe (12) is provided with a ring (14) and a vertical rod (13) inside. There are multiple vertical rods (13) and rings (14). The multiple vertical rods (13) are distributed at equal angles around the axis of the second pipe (12), and the multiple vertical rods (13) are attached to the inner wall of the second pipe (12). The multiple rings (14) are distributed along the height direction of the second pipe (12), and the rings (14) are simultaneously fixedly welded to the inner ring of the multiple vertical rods (13).

5. The tail gas treatment device for a coal gangue sintering brick furnace according to claim 4, characterized in that: Multiple rings (14) are respectively positioned above the diffusion section on the first pipe (7).

6. The tail gas treatment device for a coal gangue sintering brick furnace according to claim 1, characterized in that: The upper end of the exhaust gas treatment tank (1) is also equipped with an activated carbon plate (15), and the upper ends of multiple second pipes (12) are connected to the activated carbon plate (15). The upper end of the second pipes (12) is open and the lower end is sealed.

7. The tail gas treatment device for a coal gangue sintering brick furnace according to claim 1, characterized in that: The exhaust pipe (3) is connected to the side of the upper treatment tank (4), and a suction pump (10) is connected to the exhaust pipe (3). A chimney pipe (11) is provided on the suction pump (10).

8. The tail gas treatment device for a coal gangue sintering brick furnace according to claim 1, characterized in that: The lower end of the discharge hopper (8) is provided with a discharge pipe (9), and a manual switch valve is provided on the discharge pipe (9).

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