Coking flue gas treatment device

Abstract

The utility model relates to a coking flue gas treatment device, and relates to the technical field of flue gas treatment, in order to solve the problem of low flue gas treatment efficiency, the coking flue gas treatment device comprises a smoke pipe body, the smoke pipe body comprises a front smoke pipe and a gas outlet pipe, a treatment mechanism is arranged on the front smoke pipe, and the treatment mechanism comprises a water tank, a liquid feeding pipe, a spray pipe and a plurality of spray nozzles. The water tank is arranged on the outer wall of the front smoke pipe, one end of the liquid feeding pipe is communicated into the water tank, the other end of the liquid feeding pipe is communicated into the spraying pipe, the spraying pipe is arranged on the front smoke pipe in a winding mode, the multiple spraying heads are sequentially arranged on the spraying pipe at intervals, and the spraying ends of the multiple spraying heads are all arranged in the front smoke pipe. The device has the advantages that the removal efficiency of harmful substances (such as sulfur dioxide, nitric oxide and dust) in the flue gas is greatly improved, the environment-friendly effect is further ensured, and the effect of smooth circulation of the flue gas is kept.

Description

Technical Field

[0001] This application relates to the field of flue gas treatment technology, and in particular to a coking flue gas treatment device. Background Technology

[0002] With the rapid development of industry, coking plants, as an important supporting link in the steel industry, play a crucial role in the conversion and utilization of coal resources. During the coking process, coal undergoes high-temperature dry distillation, generating a large amount of flue gas. This flue gas has a complex composition, containing not only acidic and harmful gases such as sulfur dioxide (SO2) and nitrogen oxides (NOx), but also harmful substances such as dust, particulate matter, and polycyclic aromatic hydrocarbons.

[0003] In related technologies, traditional flue gas treatment methods face problems such as low treatment efficiency and difficulty in meeting increasingly stringent environmental emission standards. Some methods are also costly and complex to operate and maintain. Currently, although dust collector bags are used in flue gas treatment, their simple structure makes it difficult to quickly remove impurities trapped inside the bags. As impurities accumulate, they seriously affect the filtration speed of the flue gas, so improvements are needed. Utility Model Content

[0004] To address the problem of low efficiency in flue gas treatment, this application provides a coking flue gas treatment device.

[0005] The coking flue gas treatment device provided in this application adopts the following technical solution:

[0006] A coking flue gas treatment device includes a flue body, which includes a front flue and an outlet pipe. A treatment mechanism is provided on the front flue, which includes a water tank, a liquid inlet pipe, a spray pipe, and a plurality of nozzles. The water tank is arranged on the outer wall of the front flue. One end of the liquid inlet pipe is connected to the water tank, and the other end of the liquid inlet pipe is connected to the spray pipe. The spray pipe is wound around the front flue, and the plurality of nozzles are arranged sequentially at intervals on the spray pipe. The spray ends of the plurality of nozzles are all arranged inside the front flue.

[0007] Traditional flue gas treatment methods suffer from low efficiency and difficulty in meeting increasingly stringent environmental emission standards. Some methods are also costly and complex to operate and maintain. Although dust collector bags are currently used in flue gas treatment, their simple structure makes it difficult to quickly remove impurities trapped inside the bags. As impurities accumulate, they severely affect the filtration speed of the flue gas. The above-mentioned technical solution includes a flue body, which consists of a front flue and an outlet flue. The treatment mechanism is installed on the front flue and includes a water tank, a liquid inlet pipe, a spray pipe, and several nozzles.

[0008] When treating the flue gas from a coking duct, the flue gas generated during coking is smoothly introduced into the flue body through the duct. At this time, the water pump starts to draw treatment liquid from the water tank and delivers it under high pressure to the spray pipes surrounding the front flue through the liquid inlet pipe. The nozzles arranged on the spray pipes spray the liquid out in a mist form under high pressure. The atomized liquid comes into full contact with the flue gas, so that the harmful substances in the flue gas (such as sulfur dioxide, nitrogen oxides, dust, etc.) are wetted and settled. The wetted particulate matter settles to the bottom of the flue due to gravity. As the liquid accumulates, the settled particulate matter is discharged through the bottom of the flue body. The harmful substances in the flue gas treated by atomization are effectively removed or reduced, meeting the national or local environmental protection emission standards. The treated flue gas can be directly discharged into the atmosphere or further treated as needed to further ensure the environmental protection effect.

[0009] Through the design of the flue body and treatment mechanism, this atomization treatment method greatly improves the removal efficiency of harmful substances (such as sulfur dioxide, nitrogen oxides, dust, etc.) in flue gas. Compared with traditional methods, the treatment effect is more significant, effectively reducing the concentration of pollutants in flue gas and further ensuring environmental protection. At the same time, compared with traditional dust collector bags and other structures, this design is simpler and easier to maintain, avoiding the problem of impurities accumulating inside the filter bags, maintaining smooth flue gas flow, and improving flue gas treatment efficiency.

[0010] Optionally, the front smoke pipe is provided with a slot for installing a number of nozzles, and the slot is spirally opened on the front smoke pipe.

[0011] By adopting the above technical solution, the slots are spirally opened on the front flue pipe. The spiral slots increase the contact area between the atomized liquid and the flue gas, which helps to more comprehensively cover the flue gas, improve the mixing efficiency of harmful substances and atomized liquid, and ensure that pollutants in the flue gas are removed more effectively. This uniform distribution further improves the treatment efficiency, shortens the flue gas treatment time, and makes the treatment process more efficient. At the same time, the spiral slot design allows the nozzles to be compactly arranged on the front flue pipe, making full use of the limited space and reducing the size of the device.

[0012] Optionally, the front smoke pipe has an L-shaped structure with rounded corners, and the opening length of the slot accounts for three-quarters of the length of the front smoke pipe.

[0013] By adopting the above technical solution, the front flue has an L-shaped structure, with the slot length accounting for three-quarters of the front flue length. Through the shape of the front flue and the setting of the slot, the L-shaped front flue can guide the flue gas to flow along a specific path, which helps to ensure that the flue gas is in full contact with the atomized liquid during the treatment process. The rounded corner design reduces the resistance during flue gas flow, reduces energy loss, and makes the treatment process more efficient. At the same time, the slot length accounting for three-quarters of the front flue length extends the contact time between the flue gas and the liquid, improves the treatment efficiency, and helps to remove harmful substances in the flue gas more thoroughly.

[0014] Optionally, a liquid outlet is provided at the corner of the front flue, and a valve for controlling the on / off state is provided at the liquid outlet.

[0015] By adopting the above technical solution, the liquid outlet is formed at the corner of the front flue pipe; the setting of the liquid outlet can ensure that these deposits are discharged smoothly under the action of gravity, avoiding the long-term accumulation of deposits in the front flue pipe and reducing the risk of blockage and corrosion.

[0016] Optionally, a connecting pipe is provided between the front smoke pipe and the exhaust pipe, and the two ends of the connecting pipe are respectively connected to the front smoke pipe and the exhaust pipe. The connecting pipe has a trumpet-shaped structure.

[0017] By adopting the above technical solution, the connecting pipe is installed between the front smoke pipe and the exhaust pipe, and the connecting pipe has a trumpet-shaped structure. Through the setting of the connecting pipe, the trumpet-shaped structure of the connecting pipe can realize a smooth transition between the front smoke pipe and the exhaust pipe, reduce the sudden changes and disturbances in the airflow process, help maintain the stability of the airflow, and ensure that the flue gas can flow evenly and smoothly during the treatment process.

[0018] Optionally, the connecting pipe is provided with a plurality of intercepting plates, the middle of each of the intercepting plates is bent inward to fit against the inner sidewall of the connecting pipe, and the end of each of the intercepting plates extends outward, and the inner diameter of the annular structure formed by the ends of the intercepting plates is smaller than the inner diameter of the air outlet pipe.

[0019] By adopting the above technical solution, several interception plates are installed inside the connecting pipe. The installation of the interception plates increases the flow path of the flue gas in the connecting pipe, giving particulate matter and residual harmful substances in the flue gas more opportunities to come into contact with and be intercepted by the interception plates. In particular, the annular structure formed at the end of the interception plates can further block particulate matter and improve the interception effect.

[0020] Optionally, a connecting bracket for fixing to the front flue pipe is provided on one side of the water tank, and the connecting bracket is fixed to the outer wall of the front flue pipe.

[0021] By adopting the above technical solution, the water tank is installed on the outer wall of the front flue pipe through the connecting frame. With the setting of the connecting frame, the connecting frame serves as a fixed structure between the water tank and the front flue pipe, which can ensure that the water tank is stably installed on the outer wall of the front flue pipe, avoiding the risk of the water tank falling off or shifting due to external force or vibration, ensuring the stable operation of the equipment, and facilitating disassembly and maintenance.

[0022] Optionally, the water tank is also equipped with a level gauge for detecting the remaining amount of liquid inside.

[0023] By adopting the above technical solution, the level gauge is installed on the water tank; through the setting of the level gauge, the level gauge can monitor the liquid volume in the water tank in real time and accurately, so that the operator can know the liquid level status of the water tank at any time, and thus make timely decisions on replenishing or draining the liquid.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] Through the design of the flue body and treatment mechanism, this atomization treatment method greatly improves the removal efficiency of harmful substances (such as sulfur dioxide, nitrogen oxides, dust, etc.) in flue gas. Compared with traditional methods, the treatment effect is more significant, effectively reducing the concentration of pollutants in flue gas and further ensuring environmental protection. At the same time, compared with traditional dust collector bags and other structures, this design is simpler and easier to maintain, avoiding the problem of impurities accumulating inside the filter bags, maintaining smooth flue gas flow, and improving flue gas treatment efficiency.

[0026] By setting the slots, the spiral slots increase the contact area between the atomized liquid and the flue gas, which helps to cover the flue gas more comprehensively, improve the mixing efficiency of harmful substances and atomized liquid, and ensure that pollutants in the flue gas are removed more effectively. This uniform distribution further improves the treatment efficiency, shortens the flue gas treatment time, and makes the treatment process more efficient. At the same time, the spiral slot design allows the nozzles to be compactly arranged on the front flue pipe, making full use of the limited space and reducing the size of the device.

[0027] By setting up the interceptor plate, the flow path of the flue gas in the connecting pipe can be increased, giving particulate matter and residual harmful substances in the flue gas more opportunities to come into contact with the interceptor plate and be intercepted. In particular, the annular structure formed at the end of the interceptor plate can further block particulate matter and improve the interception effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a coking flue gas treatment device according to an embodiment of this application.

[0029] Figure 2 This is a front view of a coking flue gas treatment device according to an embodiment of this application.

[0030] Figure 3 This is a partial cross-sectional view used to illustrate the interceptor plate structure in the embodiments of this application.

[0031] Figure 4 This is a schematic diagram illustrating the processing mechanism in the embodiments of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Smoke pipe body; 11. Front smoke pipe; 111. Groove opening; 12. Air outlet pipe; 13. Connecting pipe; 14. Interceptor plate; 15. Liquid outlet; 2. Processing mechanism; 21. Water tank; 211. Connecting frame; 212. Liquid level gauge; 22. Liquid inlet pipe; 23. Spray pipe; 24. Nozzle. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a coking flue gas treatment device. (Refer to...) Figure 1 The coking flue gas treatment device includes a flue body 1. In this embodiment, the flue body 1 is part of the flue system. The flue body 1 needs to be closely connected with other flue components to form a complete flue gas conveying channel.

[0035] Reference Figure 1 and Figure 2 The main body of the flue pipe 1 includes a front flue pipe 11 and an exhaust pipe 12. In this embodiment, the exhaust pipe 12 is smaller in size than the front flue pipe 11 at the bottom. Meanwhile, the front flue pipe 11 has an L-shaped structure with rounded corners. The L-shaped front flue pipe 11 can guide the flue gas to flow along a specific path, which helps to ensure that the flue gas is in full contact with the atomized liquid during the treatment process. The rounded corner design reduces the resistance when the flue gas flows, reduces energy loss, and makes the treatment process more efficient.

[0036] Reference Figure 1 and Figure 2 A liquid outlet 15 is installed at the corner of the front flue 11. In this embodiment, a valve for controlling the on / off state is installed at the liquid outlet 15. The liquid outlet 15 can ensure that these deposits are discharged smoothly under the action of gravity, avoiding the long-term accumulation of deposits in the front flue 11 and reducing the risk of blockage and corrosion.

[0037] Reference Figure 1 and Figure 2A connecting pipe 13 is installed between the front smoke pipe 11 and the exhaust pipe 12. The two ends of the connecting pipe 13 are connected to the front smoke pipe 11 and the exhaust pipe 12 respectively. In this embodiment, the connecting pipe 13 has a trumpet-shaped structure that is smaller at the top and larger at the bottom. The trumpet-shaped connecting pipe 13 can realize a smooth transition between the front smoke pipe 11 and the exhaust pipe 12, reduce the sudden changes and disturbances in the airflow during the flow process, help maintain the stability of the airflow, and ensure that the flue gas can flow evenly and smoothly during the treatment process.

[0038] Reference Figure 1 and Figure 3 An interceptor plate 14 is installed inside the connecting pipe 13. In this embodiment, there are multiple sets of interceptor plates 14. The middle of each interceptor plate 14 is bent inward and fits against the inner wall of the connecting pipe 13. The end of each interceptor plate 14 extends outward. The inner diameter of the annular structure formed by the ends of the interceptor plates 14 is smaller than the inner diameter of the exhaust pipe 12. This increases the flow path of the flue gas in the connecting pipe 13, allowing particulate matter and residual harmful substances in the flue gas to have more opportunities to come into contact with and be intercepted by the interceptor plates 14. In particular, the annular structure formed by the ends of the interceptor plates 14 can further block particulate matter and improve the interception effect.

[0039] Reference Figure 1 and Figure 4 A processing mechanism 2 is installed on the front flue pipe 11. The processing mechanism 2 includes a water tank 21, an upper liquid pipe 22, a spray pipe 23, and several spray nozzles 24. The water tank 21 stores liquid, which can be cleaning fluid or clean water. A connecting frame 211 is installed on one side of the water tank 21. The connecting frame 211 is fixed to the outer wall of the front flue pipe 11. The connecting frame 211 serves as a fixing structure between the water tank 21 and the front flue pipe 11, which can ensure that the water tank 21 is stably installed on the outer wall of the front flue pipe 11. This avoids the risk of the water tank 21 falling off or shifting due to external force or vibration, ensuring the stable operation of the equipment and facilitating disassembly and maintenance.

[0040] Reference Figure 4 A level gauge 212 is installed on the water tank 21. The level gauge 212 can monitor the liquid volume in the water tank 21 in real time and accurately, so that the operator can know the liquid level status of the water tank 21 at any time and make timely decisions on replenishing or draining the liquid.

[0041] Reference Figure 4One end of the upper liquid pipe 22 is connected to the water tank 21, and the other end is connected to the spray pipe 23. In this embodiment, the water tank 21 is equipped with a pump body for drawing water from the upper liquid pipe 22. A slot 111 is opened through the front smoke pipe 11, and the slot 111 is connected to the inside of the front smoke pipe 11. The slot 111 is spirally opened on the front smoke pipe 11, and the length of the slot 111 accounts for three-quarters of the length of the front smoke pipe 11. The spray pipe 23 is installed around the slot 111 of the front smoke pipe 11. The spiral slot 111 increases the contact area between the atomized liquid and the flue gas, which helps to cover the flue gas more comprehensively, improves the mixing efficiency of harmful substances and atomized liquid, and ensures that pollutants in the flue gas are removed more effectively. This uniform distribution further improves the treatment efficiency, shortens the flue gas treatment time, and makes the treatment process more efficient. At the same time, the spiral slot 111 design allows the nozzle 24 to be compactly arranged on the front smoke pipe 11, making full use of the limited space and reducing the size of the device.

[0042] Reference Figure 4 A number of nozzles 24 are installed sequentially and at intervals on the spray pipe 23, and the spraying ends of the nozzles 24 are arranged inside the front flue pipe 11. The water pump is started to draw the treatment liquid from the water tank 21 and deliver it under high pressure through the upper liquid pipe 22 to the spray pipe 23 that is wrapped around the front flue pipe 11. The nozzles 24 arranged on it spray the liquid out in the form of mist under high pressure. The atomized liquid comes into full contact with the flue gas, so that the harmful substances in the flue gas (such as sulfur dioxide, nitrogen oxides, dust, etc.) are wetted and settled.

[0043] The implementation principle of the coking flue gas treatment device in this application embodiment is as follows: When treating the coking flue gas, the flue gas generated during the coking process is smoothly introduced into the flue body 1 through the flue. At this time, the water pump is started to draw the treatment liquid from the water tank 21 and deliver it under high pressure to the spray pipe 23 wrapped around the front flue 11 through the liquid inlet pipe 22. The nozzles 24 arranged on it spray the liquid out in the form of mist under high pressure. The atomized liquid comes into full contact with the flue gas, so that the harmful substances in the flue gas (such as sulfur dioxide, nitrogen oxides, dust, etc.) are wetted and settled. The wetted particulate matter settles to the bottom of the flue due to gravity. The settled particulate matter is discharged through the liquid outlet 15 at the bottom of the flue body 1 as the liquid accumulates. The harmful substances in the flue gas after atomization treatment are effectively removed or reduced, meeting the national or local environmental protection emission standards. The treated flue gas can be directly discharged into the atmosphere or further treated as needed to further ensure the environmental protection effect.

[0044] Through the design of the flue body 1 and the treatment mechanism 2, this atomization treatment method greatly improves the removal efficiency of harmful substances (such as sulfur dioxide, nitrogen oxides, dust, etc.) in the flue gas. Compared with traditional methods, the treatment effect is more significant, effectively reducing the concentration of pollutants in the flue gas and further ensuring environmental protection. At the same time, compared with traditional dust collector bags and other structures, this design is simpler and easier to maintain, avoiding the problem of impurities accumulating inside the filter bags, maintaining smooth flue gas flow, and improving flue gas treatment efficiency.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coking flue gas treatment device, characterized in that: The device includes a flue body, which comprises a front flue and an exhaust pipe. A processing mechanism is provided on the front flue, which includes a water tank, an upper liquid pipe, a spray pipe, and several nozzles. The water tank is arranged on the outer wall of the front flue. One end of the upper liquid pipe is connected to the water tank, and the other end of the upper liquid pipe is connected to the spray pipe. The spray pipe is wound around the front flue, and several nozzles are arranged sequentially and at intervals on the spray pipe. The spray ends of the several nozzles are all arranged inside the front flue.

2. The coking flue gas treatment device according to claim 1, characterized in that: The front smoke pipe has slots for installing several nozzles, and the slots are spirally formed on the front smoke pipe.

3. The coking flue gas treatment device according to claim 2, characterized in that: The front smoke pipe has an L-shaped structure with rounded corners, and the opening length of the slot accounts for three-quarters of the length of the front smoke pipe.

4. The coking flue gas treatment device according to claim 3, characterized in that: A liquid outlet is provided at the corner of the front flue, and a valve for controlling the on / off state is provided at the liquid outlet.

5. The coking flue gas treatment device according to claim 1, characterized in that: A connecting pipe is provided between the front smoke pipe and the exhaust pipe. The two ends of the connecting pipe are respectively connected to the front smoke pipe and the exhaust pipe. The connecting pipe has a trumpet-shaped structure.

6. The coking flue gas treatment device according to claim 5, characterized in that: The connecting pipe is provided with several intercepting plates. The middle part of each intercepting plate is bent inward and fits against the inner wall of the connecting pipe. The end of each intercepting plate extends outward. The inner diameter of the annular structure formed by the ends of the intercepting plates is smaller than the inner diameter of the air outlet pipe.

7. The coking flue gas treatment device according to claim 1, characterized in that: A connecting bracket for fixing to the front flue pipe is provided on one side of the water tank, and the connecting bracket is fixed to the outer wall of the front flue pipe.

8. The coking flue gas treatment device according to claim 7, characterized in that: The water tank is also equipped with a level gauge for detecting the remaining amount of liquid inside.

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