Industrial kiln flue gas desulfurization and denitrification system integrated equipment

By designing an integrated flue gas desulfurization and denitrification equipment, which utilizes four treatment boxes and a rotating rod system to achieve dual treatment of flue gas, the problem of large size and high energy consumption of traditional equipment is solved, and the treatment efficiency and equipment convenience are improved.

CN116943413BActive Publication Date: 2026-05-19YANCHENG LANFENG ENVIRONMENTAL ENG TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANCHENG LANFENG ENVIRONMENTAL ENG TECH
Filing Date
2023-08-08
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional desulfurization and denitrification equipment requires two separate devices to process the flue gas, resulting in large equipment size, high energy consumption, and low efficiency.

Method used

An integrated flue gas desulfurization and denitrification device was designed, which uses four treatment boxes connected by connecting columns and connecting pipes to achieve the mixing of reagents and the dual treatment of flue gas. The main rotating rod and the auxiliary rotating rod drive the sealing plate and the stirring ring to achieve intermittent treatment and rapid transportation of flue gas.

Benefits of technology

It improves the efficiency of flue gas desulfurization and denitrification, reduces the equipment footprint and energy consumption, and simplifies the operation process.

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Abstract

The application discloses an industrial kiln flue gas desulfurization and denitrification system integrated equipment, which comprises a shell, a feeding cover is fixedly installed at the top of the shell, a connecting frame is fixedly installed at the inner side of the feeding cover, a main rotating rod is rotatably connected to the bottom end of the connecting frame, four treatment boxes are rotatably connected to the outer side of the main rotating rod, and the outer sides of the four treatment boxes are fixedly connected with the inner side wall of the shell. In the specific equipment, the four treatment boxes are arranged, so that the two treatment boxes can be communicated through the communication columns, the first communication pipes and the second communication pipes. Then, the two different treatment boxes are fed with the reagents through the two feeding pipes, so that the two treatment boxes can be transported to the other treatment box after being treated with one kind of reagent, and then the other kind of reagent is sprayed, thereby the flue gas can be more quickly treated through the two kinds of desulfurization and denitrification operations, the efficiency of the whole equipment for treating the flue gas through the desulfurization and denitrification is improved, and the occupied area of the equipment is reduced.
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Description

Technical Field

[0001] This invention relates to the field of flue gas desulfurization and denitrification technology, specifically to an integrated equipment for industrial kiln flue gas desulfurization and denitrification systems. Background Technology

[0002] Industrial kilns generate a large amount of flue gas after use, which contains harmful substances such as sulfur and nitrates. This flue gas cannot be directly emitted and must be treated by an integrated desulfurization and denitrification system before being released. However, traditional integrated desulfurization and denitrification systems have the following drawbacks:

[0003] When using traditional desulfurization and denitrification equipment, the two agents for desulfurization and denitrification need to be added and mixed to treat the flue gas. Traditional desulfurization and denitrification requires two separate devices to treat the flue gas first, and then transport the flue gas to another device for further treatment. This results in a large overall equipment size and a large amount of kinetic energy required to treat the flue gas, which in turn reduces the overall efficiency of the equipment in desulfurization and denitrification of the flue gas. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated desulfurization and denitrification system for industrial kiln flue gas to solve the problem mentioned in the background art that traditional desulfurization and denitrification requires two separate devices to treat the flue gas first, and then transport the flue gas to another device for further treatment, resulting in a large overall equipment size.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an integrated equipment for desulfurization and denitrification of industrial kiln flue gas, comprising a shell, a feed hood fixedly installed on the top of the shell, a connecting frame fixedly installed on the inner side of the feed hood, a main rotating rod rotatably connected to the bottom end of the connecting frame, four processing boxes rotatably connected to the outer side of the main rotating rod, the outer sides of the four processing boxes being fixedly connected to the inner sidewall of the shell, two of the processing boxes having top pipes connected to their tops, and the other two processing boxes having bottom pipes connected to their bottoms, a connecting column fixedly installed on the inner side of each processing box, the top and bottom of the connecting column being connected to a first connecting pipe and a second connecting pipe respectively, the bottom end of the first connecting pipe being connected to the top of the processing box, and the top end of the second connecting pipe being connected to the bottom end of the processing box.

[0006] In order to enable the equipment to continuously and efficiently perform desulfurization and denitrification treatment on flue gas, in a preferred embodiment of the present invention, a discharge box is fixedly installed on the inner side of the bottom end of the outer shell, the top of the discharge box is fixedly connected to the bottom of the treatment box, a discharge pipe is connected to one side of the discharge box, the bottom end of the bottom pipe is connected to the top of the discharge box, and a first sealing plate and a second sealing plate are fixedly installed on the top and bottom ends of the main rotating rod, respectively. The outer sides of the first sealing plate and the second sealing plate are rotatably connected to the inner side wall of the outer shell and the inner side wall of the discharge box, respectively.

[0007] In order to facilitate the delivery of different types of agents into different processing boxes, as a preferred embodiment of the present invention, two feed pipes are fixedly installed on the outer side of the outer shell, and the inner sides of the two feed pipes are interlocked with the inner side wall of the processing box.

[0008] In order to facilitate the flow of flue gas into another treatment chamber, as a preferred embodiment of the present invention, a secondary rotating rod is rotatably connected inside the connecting column, and a stirring ring is fixedly installed on the outer side of the secondary rotating rod, with the outer side of the stirring ring slidably connected to the inner sidewall of the connecting column.

[0009] In order to reduce the installation of drive equipment, as a preferred embodiment of the present invention, a protective cover is fixedly installed on the top of the processing box, and the outer side of the main rotating rod and the top of the auxiliary rotating rod are rotatably connected to the bottom inner side of the protective cover. Gears are fixedly installed on the outer side of the main rotating rod and the top of the auxiliary rotating rod, and a toothed chain is meshed with the outer side of the gears.

[0010] In order to prevent the spraying of the agent from affecting the exhaust pipe, as a preferred embodiment of the present invention, the inner walls of the bottom pipe and the second connecting pipe are both fixedly installed with support rods, and the top of the support rods is fixedly installed with a cover plate.

[0011] To facilitate intermittent air intake and exhaust operations, in a preferred embodiment of the present invention, a motor is fixedly installed inside the connecting frame, and the output end of the motor is fixedly connected to the top end of the main rotating rod.

[0012] To make the device easier to use, in a preferred embodiment of the present invention, a switch panel is fixedly installed on the outer side of the housing, and a motor switch is fixedly installed on the surface of the switch panel. The motor is electrically connected to an external power supply through the motor switch.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1) By setting up four treatment boxes, the two treatment boxes can be connected by a connecting column, a first connecting pipe and a second connecting pipe. The agents are transported into the two different treatment boxes through two feed pipes. This allows the two treatment boxes to be treated with one agent and then transported to another treatment box for spraying with another agent. This enables faster desulfurization and denitrification of flue gas, improves the overall efficiency of the equipment for desulfurization and denitrification of flue gas and reduces the area occupied by the equipment.

[0015] 2) The auxiliary rotating rod drives the stirring ring to rotate inside the connecting column, allowing the flue gas treated with one agent in one treatment box to enter another treatment box more quickly for treatment with another agent. Furthermore, the first and second sealing plates follow the rotation of the main rotating rod, allowing the flue gas to enter different treatment boxes intermittently for different sequences of desulfurization or denitrification treatment, and then be discharged intermittently, thereby effectively improving the overall working efficiency of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the outer shell structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the protective cover structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the secondary rotating rod structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the internal structure of the discharge box of the present invention;

[0021] Figure 6 This is a schematic diagram of the internal structure of the processing box of the present invention.

[0022] In the diagram: 1. Outer shell; 2. Feed hood; 3. Connecting frame; 4. Main rotating rod; 5. Processing box; 6. Top pipe; 7. Bottom pipe; 8. Connecting column; 9. First connecting pipe; 10. Second connecting pipe; 11. Discharge box; 12. Discharge pipe; 13. First sealing plate; 14. Second sealing plate; 15. Feeding pipe; 16. Secondary rotating rod; 17. Agitating ring; 18. Protective cover; 19. Gear; 20. Gear chain; 21. Support rod; 22. Cover plate; 23. Motor. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-6 The present invention provides a technical solution:

[0025] An integrated desulfurization and denitrification system for industrial kiln flue gas includes a shell 1. A feed hood 2 is fixedly installed on the top of the shell 1. A connecting frame 3 is fixedly installed on the inner side of the feed hood 2. A main rotating rod 4 is rotatably connected to the bottom end of the connecting frame 3. Four processing boxes 5 are rotatably connected to the outer side of the main rotating rod 4. The outer sides of the four processing boxes 5 are fixedly connected to the inner side wall of the shell 1. The top of two processing boxes 5 are connected to a top pipe 6, and the bottom of the other two processing boxes 5 are connected to a bottom pipe 7. A connecting column 8 is fixedly installed on the inner side of the processing box 5. The top and bottom of the connecting column 8 are respectively connected to a first connecting pipe 9 and a second connecting pipe 10. The bottom end of the first connecting pipe 9 is connected to the top of the processing box 5, and the top end of the second connecting pipe 10 is connected to the bottom end of the processing box 5.

[0026] In practical use, when using this equipment to perform desulfurization and denitrification of flue gas, the flue gas is first sent to the inside of the treatment box 5 through the feed hood 2. After the flue gas flows into the feed hood 2, the connection between the top pipe 6 of one of the treatment boxes 5 and the inside of the feed hood 2 is opened, allowing the flue gas to flow into the treatment box 5 for desulfurization or denitrification. After treatment, the flue gas can be sent to the corresponding other treatment box 5 for denitrification or desulfurization through the second connecting pipe 10, the connecting column 8 and the first connecting pipe 9 in sequence. After treatment, the flue gas can be discharged out through the bottom pipe 7 at the bottom of the other treatment box 5. This allows for faster and more effective dual treatment of flue gas by desulfurization and denitrification through the two corresponding treatment boxes 5, and the overall equipment can reduce the total floor space.

[0027] In this embodiment: a discharge box 11 is fixedly installed on the inner side of the bottom end of the outer shell 1. The top of the discharge box 11 is fixedly connected to the bottom of the processing box 5. A discharge pipe 12 is connected to one side of the discharge box 11. The bottom end of the bottom pipe 7 is connected to the top of the discharge box 11. A first sealing plate 13 and a second sealing plate 14 are fixedly installed on the top and bottom ends of the main rotating rod 4, respectively. The outer sides of the first sealing plate 13 and the second sealing plate 14 are rotatably connected to the inner side wall of the outer shell 1 and the inner side wall of the discharge box 11, respectively.

[0028] In practical use, after the flue gas enters the feed hood 2, the main rotating rod 4 drives the first sealing plate 13 and the second sealing plate 14 to rotate at different times. When the opening on the first sealing plate 13 is connected to the top pipe 6 on one of the treatment boxes 5, the flue gas inside the feed hood 2 can be sent into the treatment box 5. When the main rotating rod 4 continues to rotate, the top pipe 6 can be closed until it is connected to the next top pipe 6. After the two treatment boxes 5 perform desulfurization and denitrification operations on the flue gas, the double-treated flue gas can be discharged outward through the bottom pipe 7. While the second sealing plate 14 rotates with the main rotating rod 4, the bottom pipe 7 can also be opened through the second sealing plate 14, so that the double-treated flue gas inside one of the treatment boxes 5 can be discharged into the discharge box 11 and then discharged outward through the discharge pipe 12.

[0029] In this embodiment, two feed pipes 15 are fixedly installed on the outer side of the outer shell 1, and the inner sides of the two feed pipes 15 are inserted and connected to the inner side wall of the processing box 5.

[0030] In practical use, the two corresponding treatment tanks 5 can be sprayed with different types of agents through two different feed pipes 15, so that the two corresponding treatment tanks 5 can be desulfurized and denitrified in sequence, or denitrified and desulfurized in sequence. Moreover, the feed pipes 15 can reduce the addition of different agents to the four treatment tanks 5, which can further improve the ease of operation of the overall equipment.

[0031] In this embodiment: a secondary rotating rod 16 is rotatably connected inside the connecting column 8, and a stirring ring 17 is fixedly installed on the outer side of the secondary rotating rod 16. The outer side of the stirring ring 17 is slidably connected to the inner sidewall of the connecting column 8.

[0032] In practical use, when the connecting column 8 is conveying flue gas to another processing box 5, the clothing can drive the stirring ring 17 to rotate inside the connecting column 8, thereby increasing the conveying rate of flue gas inside the connecting column 8.

[0033] In this embodiment: a protective cover 18 is fixedly installed on the top of the processing box 5. The outer side of the main rotating rod 4 and the top of the auxiliary rotating rod 16 are rotatably connected to the bottom inner side of the protective cover 18. Gears 19 are fixedly installed on the outer side of the main rotating rod 4 and the top of the auxiliary rotating rod 16. A toothed chain 20 is meshed with the outer side of the gear 19.

[0034] In practical use, when the main rotating rod 4 rotates, the gear 19 and the toothed chain 20 inside the protective cover 18 can drive the auxiliary rotating rod 16 to rotate synchronously, thereby reducing the installation of drive devices at different positions in the overall equipment.

[0035] In this embodiment, support rods 21 are fixedly installed on the inner sidewalls of the bottom pipe 7 and the second connecting pipe 10, and a cover plate 22 is fixedly installed on the top of the support rods 21.

[0036] In practical use, when the treated flue gas inside the treatment box 5 is transported to another treatment box 5 or the discharge box 11 through the bottom pipe 7 and the second connecting pipe 10, the cover plate 22 can be supported by the support rod 21, so that the agent sprayed by the feed pipe 15 can be protected by the cover plate 22 and prevent the agent from entering the bottom pipe 7 and the second connecting pipe 10.

[0037] In this embodiment: a motor 23 is fixedly installed inside the connecting frame 3, and the output end of the motor 23 is fixedly connected to the top end of the main rotating rod 4.

[0038] In practical use, the motor 23 can drive the main rotating rod 4 to rotate inside the connecting frame 3, so that the flue gas can enter the treatment box 5 at different positions for treatment.

[0039] In this embodiment: a switch panel is fixedly installed on the outer side of the outer casing 1, and a motor switch is fixedly installed on the surface of the switch panel. The motor 23 is electrically connected to an external power supply through the motor switch.

[0040] In practical use, the switch panel controls the various components inside the integrated desulfurization and denitrification system, making the equipment more convenient to use during the desulfurization and denitrification process.

[0041] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated equipment for desulfurization and denitrification of industrial kiln flue gas, comprising a shell (1), characterized in that, A feed hood (2) is fixedly installed on the top of the outer shell (1). A connecting frame (3) is fixedly installed on the inner side of the feed hood (2). A main rotating rod (4) is rotatably connected to the bottom end of the connecting frame (3). Four processing boxes (5) are rotatably connected to the outer side of the main rotating rod (4). The outer sides of the four processing boxes (5) are fixedly connected to the inner sidewall of the outer shell (1). The top of two of the processing boxes (5) is connected to a top pipe (6), and the bottom of the other two processing boxes (5) is connected to a bottom pipe (7). A connecting column (8) is fixedly installed on the inner side of the processing box (5). The top and bottom of the connecting column (8) are respectively connected to a first connecting pipe (9) and a second connecting pipe (10). The bottom end of the first connecting pipe (9) is connected to the top of the treatment box (5), and the top end of the second connecting pipe (10) is connected to the bottom end of the treatment box (5). When in use, after the flue gas flows into the inside of the feed hood (2), the connection between the top pipe (6) of one of the treatment boxes (5) and the inside of the feed hood (2) is opened, and the flue gas flows into the inside of the treatment box (5) for desulfurization or denitrification. The treated flue gas then passes through the second connecting pipe (10), the connecting column (8) and the first connecting pipe (9) in sequence, and enters the corresponding other treatment box (5) for denitrification or desulfurization. The treated flue gas is discharged outward through the bottom pipe (7) at the bottom of the other treatment box (5). Two feed pipes (15) are fixedly installed on the outer side of the outer shell (1). The inner sides of the two feed pipes (15) are connected to the inner side wall of the treatment box (5). The two corresponding treatment boxes (5) can be sprayed with different kinds of agents through the two different feed pipes (15).

2. The integrated equipment for desulfurization and denitrification of industrial kiln flue gas according to claim 1, characterized in that: A discharge box (11) is fixedly installed on the inner side of the bottom end of the outer shell (1). The top of the discharge box (11) is fixedly connected to the bottom of the processing box (5). A discharge pipe (12) is connected to one side of the discharge box (11). The bottom end of the bottom pipe (7) is connected to the top of the discharge box (11). A first sealing plate (13) and a second sealing plate (14) are fixedly installed on the top and bottom ends of the main rotating rod (4), respectively. The outer sides of the first sealing plate (13) and the second sealing plate (14) are rotatably connected to the inner side wall of the outer shell (1) and the inner side wall of the discharge box (11), respectively.

3. The integrated equipment for desulfurization and denitrification of industrial kiln flue gas according to claim 1, characterized in that: The connecting column (8) is rotatably connected to a secondary rotating rod (16), and a stirring ring (17) is fixedly installed on the outer side of the secondary rotating rod (16). The outer side of the stirring ring (17) is slidably connected to the inner wall of the connecting column (8).

4. The integrated equipment for desulfurization and denitrification of industrial kiln flue gas according to claim 3, characterized in that: The top of the processing box (5) is fixedly installed with a protective cover (18). The outer side of the main rotating rod (4) and the top of the auxiliary rotating rod (16) are rotatably connected to the bottom inner side of the protective cover (18). The outer side of the main rotating rod (4) and the top of the auxiliary rotating rod (16) are fixedly installed with gears (19). The outer side of the gears (19) is connected with a toothed chain (20).

5. The integrated equipment for desulfurization and denitrification of industrial kiln flue gas according to claim 1, characterized in that: The inner walls of the bottom pipe (7) and the second connecting pipe (10) are both fixedly equipped with support rods (21), and the top of the support rods (21) is fixedly equipped with a cover plate (22).

6. The integrated equipment for desulfurization and denitrification of industrial kiln flue gas according to claim 1, characterized in that: A motor (23) is fixedly installed inside the connecting frame (3), and the output end of the motor (23) is fixedly connected to the top of the main rotating rod (4).

7. The integrated equipment for desulfurization and denitrification of industrial kiln flue gas according to claim 6, characterized in that: A switch panel is fixedly installed on the outer side of the housing (1), and a motor switch is fixedly installed on the surface of the switch panel. The motor (23) is electrically connected to an external power supply through the motor switch.