Heating furnace flue gas component control system

Abstract

The utility model discloses a heating furnace flue gas component control system, which belongs to the technical field of heating furnace flue gas emission, and is characterized by comprising a flue gas exhaust pipe, a control shell is mounted on the outer side of the flue gas exhaust pipe, a flue gas passing support and a spraying frame are arranged on the inner side of the control shell, and a spray head is mounted at the bottom of the spraying frame. A smoke passing plate is installed on the inner side of a smoke passing support, a control shell is arranged outside a smoke exhaust pipe, when internal smoke is exhausted, the internal smoke can fall into the control shell through the smoke exhaust pipe, spraying water in a water tank is pumped into a spraying frame through a liquid pump and is sprayed through a spraying head, and the smoke can be retained along the smoke passing plate when passing through the smoke passing support; meanwhile, the contact area of the spraying liquid and the flue gas is increased, the contact time of the spraying liquid and the flue gas is prolonged, then spraying water falls into the water tank along the bottom of the control shell, impurities in the spraying liquid fall on the flat plate, and the liquid falls into the water tank through the water falling groove.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas emission from a heating furnace, in particular to a flue gas component control system for a heating furnace. Background Art

[0002] In the metallurgical industry, a heating furnace is a device that heats materials or workpieces to the rolling and forging temperature. Heating furnaces include continuous heating furnaces and chamber heating furnaces. Heating furnaces used for metal heat treatment are also called heat treatment furnaces. Furnaces that heat steel ingots before initial rolling or make the internal temperature of the steel ingots uniform are called soaking furnaces. In a broad sense, heating furnaces also include soaking furnaces and heat treatment furnaces.

[0003] The flue gas emitted by existing heating furnaces contains a large amount of highly polluting components such as sulfur and nitrate, which have a serious impact on the ecosystem. Although impurities such as particulate matter are treated before emission, if there are still many harmful substances during emission, it is difficult to collect and treat them for the second time, which makes it inconvenient to use. Utility Model Content

[0004] The utility model provides a heating furnace flue gas component control system, aiming to solve the problem that the flue gas emitted by the existing heating furnace contains a large amount of highly polluting components such as sulfur and nitrate, which has a serious impact on the ecosystem. Although impurities such as particulate matter are also treated before emission, if there are still many harmful substances during emission, it is difficult to collect and treat them for the second time, which makes it inconvenient to use.

[0005] The utility model is implemented as follows: a heating furnace smoke component control system comprises a smoke exhaust pipe, a control housing is installed on the outside of the smoke exhaust pipe, a smoke passing bracket and a spray rack are arranged on the inside of the control housing, a nozzle is installed at the bottom of the spray rack, a smoke passing plate is installed on the inside of the smoke passing bracket, a water tank is arranged on the left side of the control housing, an auxiliary component is arranged on the inside of the water tank, a liquid pump is bolted on the top of the water tank, and the discharge end of the liquid pump is connected to the spray rack;

[0006] The auxiliary component comprises a flat plate, a water leakage groove is provided on the inner side of the flat plate, a scraping plate is provided on the top of the flat plate, and a drainage port is provided on the left side of the water tank.

[0007] In order to facilitate the guiding of the spraying liquid, as a preferred embodiment of the heating furnace flue gas component control system of the present invention, the bottom of the control shell is arranged in an arc shape, and an arc cover is arranged on the inner side of the control shell.

[0008] In order to facilitate the connection between the arc hood and the control shell, as a preferred embodiment of the heating furnace flue gas component control system of the present invention, a connecting rod is bolted to the outer side of the arc hood, and the connecting rod is bolted to the control shell on one side close to the control shell.

[0009] In order to prevent liquid from leaking from the left side of the exhaust port, as a preferred embodiment of the heating furnace flue gas component control system of the present invention, an inclined plate is bolted to the left side of the water tank, and the inclined plate is arranged on the left side of the exhaust port.

[0010] In order to facilitate the circulation of the spraying liquid, as a preferred control system of the flue gas composition of the heating furnace of the utility model, the liquid inlet end of the liquid pump is bolted with a circulation pipe, and the circulation pipe is bolted to the bottom of the water tank on the side away from the liquid pump.

[0011] In order to facilitate the movement of the scraper plate, as a preferred control system of the flue gas composition of the heating furnace of the utility model, the top of the inner wall of the water tank is bolted with a guide rail, the inner side of the guide rail is slidably connected with a slider, the bottom of the slider is bolted with a cross bar, and the bottom of the cross bar is movably connected to the scraper plate.

[0012] In order to facilitate the scraper plate to be pressed against the flat plate, as a preferred control system of the heating furnace flue gas component of the utility model, the inner side of the cross bar is slidably connected with a sliding rod, the bottom of the sliding rod is bolted to the scraper plate, the top of the scraper plate is bolted with a spring, and the top of the spring is bolted to the cross bar.

[0013] In order to facilitate the movement of the scraper plate, as a preferred control system of the flue gas component of the heating furnace of the utility model, a motor is bolted to the left side of the water tank, the output end of the motor passes through the water tank and is bolted to a screw, the outer side of the screw is rotatably connected to the guide rail, and the outer side of the screw is threadedly connected to the slider.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The control system of flue gas composition of the heating furnace is configured such that the control shell is arranged outside the exhaust pipe. When the internal flue gas is discharged, the control shell will fall into the interior of the control shell through the exhaust pipe. The spray water in the water tank is pumped into the spray rack through a liquid pump and sprayed through a nozzle. When the flue gas passes through the smoke rack, it will be retained along the smoke plate, while the contact area between the spray liquid and the flue gas is increased and the contact time is prolonged. Then the spray water falls into the water tank along the bottom of the control shell. Impurities in the spray liquid will fall on the flat plate. The liquid falls into the water tank through the gutter. The scraper plate scrapes along the surface of the flat plate to facilitate scraping impurities on the surface out of the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is the overall structure diagram of the heating furnace flue gas component control system of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the guide rail of the utility model;

[0019] Figure 4 It is a bottom schematic diagram of the internal structure of the utility model;

[0020] Figure 5 It is the front view of the internal structure of the utility model.

[0021] In the figure, 1. exhaust pipe; 2. control housing; 3. smoke bracket; 4. spray rack; 5. nozzle; 6. smoke plate; 7. water tank; 8. auxiliary components; 801. flat plate; 802. scraper plate; 803. exhaust port; 9. liquid pump; 10. arc cover; 11. connecting rod; 12. inclined plate; 13. circulation pipe; 14. guide rail; 15. slider; 16. cross bar; 17. slide bar; 18. spring; 19. motor; 20. screw. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-5The utility model provides a technical solution: a control system for the composition of flue gas in a heating furnace, comprising a smoke exhaust pipe 1, a control housing 2 is installed on the outer side of the smoke exhaust pipe 1, a smoke passing bracket 3 and a spray rack 4 are arranged on the inner side of the control housing 2, a nozzle 5 is installed on the bottom of the spray rack 4, a smoke passing plate 6 is installed on the inner side of the smoke passing bracket 3, a water tank 7 is arranged on the left side of the control housing 2, an auxiliary component 8 is arranged on the inner side of the water tank 7, a liquid pump 9 is bolted to the top of the water tank 7, and the discharge end of the liquid pump 9 is connected to the spray rack 4;

[0025] The auxiliary component 8 includes a flat plate 801 , a water leakage groove is provided on the inner side of the flat plate 801 , a scraper plate 802 is provided on the top of the flat plate 801 , and a drainage port 803 is provided on the left side of the water tank 7 .

[0026] In this embodiment: by arranging the control shell 2 outside the smoke exhaust pipe 1, when the internal smoke is discharged, it will fall into the interior of the control shell 2 through the smoke exhaust pipe 1, and the spray water in the water tank 7 is pumped into the spray rack 4 through the liquid pump 9, and sprayed through the nozzle 5. When the smoke passes through the smoke bracket 3, it will be retained along the smoke plate 6, while increasing the contact area between the spray liquid and the smoke and prolonging the contact time. Then the spray water falls into the water tank 7 along the bottom of the control shell 2, and the impurities in the spray liquid will fall on the flat plate 801. The liquid falls into the water tank 7 through the gutter, and the scraper plate 802 scrapes along the surface of the flat plate 801 to facilitate scraping the impurities on its surface out of the water tank 7.

[0027] As a technical optimization solution of the present invention, the bottom of the control housing 2 is arranged in an arc shape, and an arc-shaped cover 10 is arranged on the inner side of the control housing 2 .

[0028] In this embodiment: by providing an arc-shaped control housing 2, it is convenient to guide the liquid falling into the bottom of the control housing 2, and the arc-shaped cover 10 is provided to shield and guide the spraying liquid to prevent it from falling into the smoke exhaust pipe 1.

[0029] As a technical optimization solution of the present invention, a connecting rod 11 is bolted to the outer side of the arc-shaped cover 10 , and the connecting rod 11 is bolted to the control housing 2 on one side close to the control housing 2 .

[0030] In this embodiment, by providing the connecting rod 11, it is convenient to connect the arc cover 10 and the control housing 2, making the connection more stable and reasonable.

[0031] As a technical optimization solution of the present invention, an inclined plate 12 is bolted to the left side of the water tank 7 , and the inclined plate 12 is arranged on the left side of the discharge port 803 .

[0032] In this embodiment, by providing the inclined plate 12 , it is possible to block the liquid discharged from the discharge port 803 and prevent it from leaking out of the discharge port 803 .

[0033] As a technical optimization solution of the utility model, a circulation pipe 13 is bolted to the liquid inlet end of the liquid pump 9 , and the side of the circulation pipe 13 away from the liquid pump 9 is bolted to the bottom of the water tank 7 .

[0034] In this embodiment, by providing the circulation pipe 13, it is convenient to connect the liquid pump 9 and the water tank 7, and it is convenient to circulate the spraying liquid.

[0035] As a technical optimization solution of the utility model, a guide rail 14 is bolted to the top of the inner wall of the water tank 7, a slider 15 is slidably connected to the inner side of the guide rail 14, a cross bar 16 is bolted to the bottom of the slider 15, and the bottom of the cross bar 16 is movably connected to the scraper plate 802.

[0036] In this embodiment, by providing the guide rail 14 in conjunction with the slider 15 , the scraper plate 802 can be conveniently connected via the cross bar 16 .

[0037] As a technical optimization solution of the utility model, the inner side of the cross bar 16 is slidably connected with a slide bar 17, the bottom of the slide bar 17 is bolted to the scraper plate 802, the top of the scraper plate 802 is bolted with a spring 18, and the top of the spring 18 is bolted to the cross bar 16.

[0038] In this embodiment: by setting the slide bar 17, the vertical movement of the scraper plate 802 can be limited, and the spring 18 can be connected to the scraper plate 802 and the cross bar 16, so that the scraper plate 802 can be pressed against the flat plate 801 to perform a scraping action.

[0039] As a technical optimization solution of the utility model, a motor 19 is bolted to the left side of the water tank 7, the output end of the motor 19 passes through the water tank 7 and is bolted to a screw 20, the outer side of the screw 20 is rotatably connected to the guide rail 14, and the outer side of the screw 20 is threadedly connected to the slider 15.

[0040] In this embodiment, the motor 19 is provided to facilitate driving the screw rod 20 to rotate, so that the slider 15 connected thereto can drive the cross bar 16 to move horizontally.

[0041] Working principle: First, the control housing 2 is installed outside the smoke exhaust pipe 1. When the internal smoke is discharged, the smoke will fall into the control housing 2 through the smoke exhaust pipe 1. The spray water in the water tank 7 is pumped into the spray rack 4 through the liquid pump 9 and sprayed through the nozzle 5. When the smoke passes through the smoke bracket 3, it will be retained along the smoke plate 6, while increasing the contact area between the spray liquid and the smoke and prolonging the contact time. Then the spray water falls into the water tank 7 along the bottom of the control housing 2, and the impurities in the spray liquid will fall on the flat plate 801. The liquid falls into the water tank 7 through the gutter, and the scraper plate 802 scrapes along the surface of the flat plate 801 to scrape the impurities on its surface out of the water tank 7.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating furnace flue gas composition control system, comprising a flue gas exhaust pipe (1), Features: A control housing (2) is installed on the outside of the smoke exhaust pipe (1), a smoke passing bracket (3) and a spray rack (4) are arranged on the inside of the control housing (2), a nozzle (5) is installed on the bottom of the spray rack (4), a smoke passing plate (6) is installed on the inside of the smoke passing bracket (3), a water tank (7) is arranged on the left side of the control housing (2), an auxiliary component (8) is arranged on the inside of the water tank (7), a liquid pump (9) is bolted to the top of the water tank (7), and the discharge end of the liquid pump (9) is connected to the spray rack (4); The auxiliary component (8) comprises a flat plate (801), a water leakage groove is provided on the inner side of the flat plate (801), a scraper plate (802) is provided on the top of the flat plate (801), and a drainage port (803) is provided on the left side of the water tank (7).

2. The heating furnace flue gas component control system according to claim 1, Features: The bottom of the control housing (2) is arranged in an arc shape, and an arc-shaped cover (10) is arranged on the inner side of the control housing (2).

3. The heating furnace flue gas composition control system according to claim 2, Features: A connecting rod (11) is bolted to the outer side of the arc-shaped cover (10), and the connecting rod (11) is bolted to the control housing (2) on a side close to the control housing (2).

4. The heating furnace flue gas composition control system according to claim 1, Features: The left side of the water tank (7) is bolted with an inclined plate (12), and the inclined plate (12) is arranged on the left side of the discharge port (803).

5. The heating furnace flue gas composition control system according to claim 1, Features: A circulation pipe (13) is bolted to the liquid inlet end of the liquid pump (9), and the side of the circulation pipe (13) away from the liquid pump (9) is bolted to the bottom of the water tank (7).

6. The heating furnace flue gas component control system according to claim 1, Features: A guide rail (14) is bolted to the top of the inner wall of the water tank (7), a slider (15) is slidably connected to the inner side of the guide rail (14), a cross bar (16) is bolted to the bottom of the slider (15), and the bottom of the cross bar (16) is movably connected to the scraper plate (802).

7. The heating furnace flue gas composition control system according to claim 6, Features: The inner side of the cross bar (16) is slidably connected to a slide bar (17), the bottom of the slide bar (17) is bolted to the scraper plate (802), the top of the scraper plate (802) is bolted to a spring (18), and the top of the spring (18) is bolted to the cross bar (16).

8. The heating furnace flue gas composition control system according to claim 6, Features: A motor (19) is bolted to the left side of the water tank (7), the output end of the motor (19) passes through the water tank (7) and is bolted to a screw rod (20), the outer side of the screw rod (20) is rotatably connected to the guide rail (14), and the outer side of the screw rod (20) is threadedly connected to the slider (15).

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