Exhaust gas treatment device for hot blast stove

Abstract

The utility model relates to waste gas treatment device technical field discloses a waste gas treatment device for hot blast furnace, including the protection tank body, the upper end fixedly connected with the air inlet pipeline of protection tank body, the inner wall of protection tank body is provided with the filter component, the surface fixedly connected with the fixed ring of protection tank body, the lower fixedly connected with the support station leg of fixed ring, the lower fixedly connected with the exhaust pipe of protection tank body, the surface of protection tank body is provided with the limiting component. The filter component includes the sealed door, the inner wall fixedly connected with the rotating shaft of sealed door, the inner surface fixedly connected with the first connecting frame of sealed door, the inner wall slide connection has the bolt of first connecting frame. The utility model discloses through using the modularization connection design of the fixed frame of two -piece type through both sides first connecting frame and second connecting frame, has realized when the convenient dismouting purpose of filter screen need replacing, has promoted the practicality of device.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment devices, and in particular to a waste gas treatment device for a hot blast stove. Background Technology

[0002] Hot blast stoves generate waste gas containing particulate matter and harmful gases (such as nitrogen oxides and sulfur dioxide) during operation. If discharged directly without treatment, this waste gas will pollute the environment. Therefore, waste gas treatment devices for hot blast stoves have been developed to reduce the environmental impact of these gases.

[0003] However, when using the waste gas treatment device for hot air furnaces, sometimes the filter screen used for filtering particulate matter in the waste gas becomes clogged, and it is inconvenient to replace it, which prolongs the maintenance time and affects the overall use of the device. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a waste gas treatment device for hot blast stoves.

[0005] This utility model is achieved by the following technical solution: a waste gas treatment device for a hot air furnace, including a protective tank, an air inlet pipe fixedly connected to the upper end of the protective tank, a filter assembly provided on the inner wall of the protective tank, a fixing ring fixedly connected to the surface of the protective tank, a supporting leg fixedly connected to the lower end of the fixing ring, an exhaust pipe fixedly connected to the lower end of the protective tank, and a limit assembly provided on the surface of the protective tank;

[0006] The filter assembly includes a sealing door, a rotating shaft fixedly connected to the inner wall of the sealing door, a first connecting frame fixedly connected to the inner surface of the sealing door, a pin slidably connected to the inner wall of the first connecting frame, a fixing frame snapped into the inner wall of the first connecting frame, a filter screen fixedly connected to the inner wall of the fixing frame, and a second connecting frame snapped into the surface of the filter screen.

[0007] The above technical solution utilizes a modular design with a split mounting bracket that connects the first and second connecting brackets on both sides, enabling convenient disassembly and assembly when the filter needs to be replaced, thus improving the practicality of the device.

[0008] As a further improvement to the above solution, the fixing frame is located between the second connecting frame and the first connecting frame, and the surface of the pin is engaged with the inner wall of the fixing frame.

[0009] As a further improvement to the above solution, the surface of the second connecting frame is fixedly connected to the inner wall of the protective tank, and the surface of the rotating shaft is rotatably connected to the inner wall of the protective tank.

[0010] As a further improvement to the above solution, the limiting component includes a limiting frame, a threaded rod is threadedly connected to the inner wall of the limiting frame, a rotating handle is fixedly connected to the front end of the threaded rod, a rotating frame is threadedly connected to the surface of the threaded rod, and a connecting shaft is fixedly connected to the rear end of the rotating frame.

[0011] By using the above technical solution, a threaded rod is used to control the rotation limit of the rotating frame, thus achieving the purpose of conveniently opening and closing the sealing door and making the device more convenient to use.

[0012] As a further improvement to the above solution, the surface of the connecting shaft is rotatably connected to the inner wall of the sealing door, and the rear end of the limiting frame is fixedly connected to the surface of the protective tank.

[0013] The above technical solution provides stable support for the limiting of the sealing door between the limit and the rotating frame, making subsequent use more convenient.

[0014] As a further improvement to the above solution, the number of the first connecting brackets is three, and the first connecting brackets are evenly distributed on the inner surface of the sealed door.

[0015] As a further improvement to the above solution, the fixing ring is located at the lower end of the protective tank.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model features a filter assembly. Specifically, when the sealed door is opened, the first connecting bracket, which is fixedly connected to it, causes the pin to separate from the fixed bracket and the second connecting bracket, thereby bringing out the fixed bracket and the filter screen. After the filter screen is brought out, simply pull up the pin corresponding to the filter screen to be replaced to disengage it from the inner wall of the fixed bracket, thus releasing the restriction on the fixed bracket. At this point, the fixed bracket and the filter screen can be pulled out together for maintenance and replacement. The modular design of the split fixed bracket, connected by the first and second connecting brackets on both sides, enables convenient disassembly and assembly when the filter screen needs to be replaced, improving the practicality of the device.

[0018] This utility model uses a limiting component: rotating the handle drives the threaded rod to rotate, thereby driving the threaded rod to separate from the rotating frame to release the limiting effect on the rotating frame. Then, rotating the rotating frame disengages from the inner wall of the limiting frame. After the rotating frame disengages from the limiting frame, pulling the rotating frame opens the sealing door, facilitating subsequent maintenance of the filter screen. Using the threaded rod to control the rotation limit of the rotating frame achieves the purpose of conveniently opening and closing the sealing door, making the device more convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the filter assembly structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the specific component structure of the filter assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Protective tank body; 2. Air inlet pipe; 3. Filter assembly; 301. Sealing door; 302. Rotating shaft; 303. First connecting frame; 304. Pin; 305. Fixing frame; 306. Filter screen; 307. Second connecting frame; 4. Fixing ring; 5. Support leg; 6. Exhaust pipe; 7. Limiting assembly; 701. Limiting frame; 702. Threaded rod; 703. Rotating handle; 704. Rotating frame; 705. Connecting shaft. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-5 The waste gas treatment device for a hot air furnace in this embodiment includes a protective tank 1, an air inlet pipe 2 fixedly connected to the upper end of the protective tank 1, a filter assembly 3 provided on the inner wall of the protective tank 1, a fixing ring 4 fixedly connected to the surface of the protective tank 1, a supporting leg 5 fixedly connected to the lower end of the fixing ring 4, an exhaust pipe 6 fixedly connected to the lower end of the protective tank 1, and a limit assembly 7 provided on the surface of the protective tank 1.

[0029] The filter assembly 3 includes a sealing door 301, a rotating shaft 302 fixedly connected to the inner wall of the sealing door 301, a first connecting frame 303 fixedly connected to the inner surface of the sealing door 301, a pin 304 slidably connected to the inner wall of the first connecting frame 303, a fixing frame 305 snapped into the inner wall of the first connecting frame 303, a filter screen 306 fixedly connected to the inner wall of the fixing frame 305, and a second connecting frame 307 snapped into the surface of the filter screen 306. The modular design of the split fixing frame 305, which is connected to the first connecting frame 303 and the second connecting frame 307 on both sides, enables convenient disassembly and assembly when the filter screen 306 needs to be replaced, thus improving the practicality of the device.

[0030] The fixing bracket 305 is located between the second connecting bracket 307 and the first connecting bracket 303, and the surface of the pin 304 is engaged with the inner wall of the fixing bracket 305.

[0031] The surface of the second connecting bracket 307 is fixedly connected to the inner wall of the protective tank 1, and the surface of the rotating shaft 302 is rotatably connected to the inner wall of the protective tank 1.

[0032] The limiting assembly 7 includes a limiting frame 701, with a threaded rod 702 threadedly connected to the inner wall of the limiting frame 701. A handle 703 is fixedly connected to the front end of the threaded rod 702, and a rotating frame 704 is threadedly connected to the surface of the threaded rod 702. A connecting shaft 705 is fixedly connected to the rear end of the rotating frame 704. The threaded rod 702 is used to control the rotation limit of the rotating frame 704, thereby achieving the purpose of conveniently opening and closing the sealing door 301 and making the device more convenient to use.

[0033] The surface of the connecting shaft 705 is rotatably connected to the inner wall of the sealing door 301, and the rear end of the limit frame 701 is fixedly connected to the surface of the protective tank 1.

[0034] There are three first connecting brackets 303, which are evenly distributed on the inner surface of the sealing door 301.

[0035] The fixing ring 4 is located at the lower end of the protective tank 1.

[0036] The implementation principle of the waste gas treatment device for a hot blast stove in this embodiment is as follows: When using the device, the waste gas discharged from the hot blast stove is first introduced into the protective tank 1 through the inlet pipe 2. Then, the waste gas is driven through multiple filter screens 306 to remove particles from the waste gas. Finally, it is discharged from the exhaust pipe 6 so that it can enter the subsequent desulfurization and denitrification processes. When the filter screen 306 is clogged or damaged and needs to be replaced, the handle 703 is rotated to drive the threaded rod 702 to rotate, thereby driving the threaded rod 702 to separate from the rotating frame 704 to release the limit on the rotating frame 704. Then, the rotating frame 704 is rotated to disengage from the inner wall of the limiting frame 701. After the rotating frame 704 is separated from the limiting frame 701, the rotating frame 704 is pulled to drive the sealing door 301 to open so that the filter screen 306 can be maintained. The threaded rod 702 is used to control the rotation of the rotating frame. The rotation limit of 704 enables convenient opening and closing of the sealing door 301, making the device more convenient to use. When the sealing door 301 is opened, the first connecting bracket 303, which is fixedly connected to it, drives the pin 304 to separate from the fixed bracket 305 and the second connecting bracket 307, thereby bringing out the fixed bracket 305 and the filter screen 306. After the filter screen 306 is brought out, simply pull up the pin 304 corresponding to the filter screen 306 that needs to be replaced to disengage it from the inner wall of the fixed bracket 305, thereby releasing the limit on the fixed bracket 305. At this time, the fixed bracket 305 and the filter screen 306 can be pulled out together for maintenance and replacement. The modular design of the split fixed bracket 305, which is connected by the first connecting bracket 303 and the second connecting bracket 307 on both sides, enables convenient disassembly and assembly when the filter screen 306 needs to be replaced, improving the practicality of the device.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A waste gas treatment device for a hot blast stove, characterized in that, The protective tank (1) includes an air inlet pipe (2) fixedly connected to the upper end of the protective tank (1), a filter assembly (3) provided on the inner wall of the protective tank (1), a fixing ring (4) fixedly connected to the surface of the protective tank (1), a supporting leg (5) fixedly connected to the lower end of the fixing ring (4), an exhaust pipe (6) fixedly connected to the lower end of the protective tank (1), and a limit assembly (7) provided on the surface of the protective tank (1). The filter assembly (3) includes a sealing door (301), a rotating shaft (302) is fixedly connected to the inner wall of the sealing door (301), a first connecting frame (303) is fixedly connected to the inner surface of the sealing door (301), a pin (304) is slidably connected to the inner wall of the first connecting frame (303), a fixing frame (305) is snapped into the inner wall of the first connecting frame (303), a filter screen (306) is fixedly connected to the inner wall of the fixing frame (305), and a second connecting frame (307) is snapped into the surface of the filter screen (306).

2. The waste gas treatment device for a hot blast stove as described in claim 1, characterized in that: The fixing frame (305) is located between the second connecting frame (307) and the first connecting frame (303), and the surface of the pin (304) is engaged with the inner wall of the fixing frame (305).

3. The waste gas treatment device for a hot blast stove as described in claim 2, characterized in that: The surface of the second connecting frame (307) is fixedly connected to the inner wall of the protective tank (1), and the surface of the rotating shaft (302) is rotatably connected to the inner wall of the protective tank (1).

4. The waste gas treatment device for a hot blast stove as described in claim 3, characterized in that: The limiting component (7) includes a limiting frame (701), the inner wall of the limiting frame (701) is threaded with a threaded rod (702), the front end of the threaded rod (702) is fixedly connected with a handle (703), the surface of the threaded rod (702) is threadedly connected with a rotating frame (704), and the rear end of the rotating frame (704) is fixedly connected with a connecting shaft (705).

5. The waste gas treatment device for a hot blast stove as described in claim 4, characterized in that: The surface of the connecting shaft (705) is rotatably connected to the inner wall of the sealing door (301), and the rear end of the limiting frame (701) is fixedly connected to the surface of the protective tank (1).

6. The waste gas treatment device for a hot blast stove as described in claim 5, characterized in that: There are three first connecting brackets (303), which are evenly distributed on the inner surface of the sealing door (301).

7. The waste gas treatment device for a hot blast stove as described in claim 6, characterized in that: The fixing ring (4) is located at the lower end of the protective tank (1).

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