A flue cleaning device for steelmaking

Abstract

The utility model discloses a flue cleaning device for steelmaking relates to flue cleaning device technical field of steelmaking, this flue cleaning device for steelmaking, including fan case and flue, fan case is fixedly connected with the flue, and the front surface rotationally connected with the fan door of fan case, the right surface fixedly connected with the flue inlet pipe of fan case, the inside fixedly connected with the fan of fan case, the upper surface fixedly connected with the fan motor of fan, the inside fixedly connected with four limit blocks of fan case, the inside slidingly connected with the impurity removal plate of fan case, and four limit blocks form two sliding slots in the left and right inner walls of fan case, the upper surface fixedly connected with the sewage tank of fan case, the rear surface fixedly connected with the sewage pipe of sewage tank, install water spraying cleaning subassembly on the upper surface of flue, install flue scraping assembly in the inside of flue, compared with traditional mechanical cleaning equipment, and this flue cleaning device can adapt to the cleaning of polygonal flue, and the special shape of polygonal pipeline is adapted.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking flue cleaning technology, and in particular to a flue cleaning device for steelmaking. Background Technology

[0002] In many industrial sectors, such as power plants, steel mills, metal smelters, chemical plants, cement plants, as well as domestic boilers, waste disposal, and hazardous waste treatment, flues play a crucial role in transporting high-temperature flue gas. Polygonal flues, due to their unique structural design, can optimize the flue gas flow path and enhance the gas guiding effect within a limited space, and are therefore widely used. However, this special polygonal structure results in a large number of sharp angles inside the flue. Traditional mechanical cleaning equipment is generally designed for circular flues, but due to the irregular internal space of polygonal flues, it is difficult to adapt to their special shape, resulting in many blind spots in cleaning. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a flue cleaning device for steelmaking that can solve the problem that mechanical cleaning equipment has difficulty cleaning corners.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flue cleaning device for steelmaking, comprising a fan box and a flue, wherein the fan box is fixedly connected to the flue, a fan door is rotatably connected to the front surface of the fan box, a smoke inlet pipe is fixedly connected to the right surface of the fan box, a fan is fixedly connected inside the fan box, a fan motor is fixedly connected to the upper surface of the fan, four limiting blocks are fixedly connected inside the fan box, a debris removal plate is slidably connected inside the fan box, the four limiting blocks form two sliding grooves on the left and right inner walls of the fan box, a sewage tank is fixedly connected to the upper surface of the fan box, a sewage discharge pipe is fixedly connected to the rear surface of the sewage tank, a smoke outlet is opened at the upper end of the flue, a water spray cleaning component is installed on the top of the flue, and a flue ash scraping component is installed inside the flue.

[0005] Preferably, the output rotating end of the fan motor extends into the interior of the fan housing and is fixedly connected to the fan shaft.

[0006] Preferably, the impurity removal plate is slidably connected to the groove formed by four limiting blocks.

[0007] Preferably, the outer wall of the sewage tank is fixedly connected to the inner wall of the flue, and the sewage pipe extends through the flue into the interior of the sewage tank.

[0008] Preferably, the water spray cleaning component includes a solution tank, which is fixedly fitted onto the outer wall of the flue. The upper surface of the solution tank has a solution tank opening, and a solution pipe is fixedly connected to the outlet of the solution tank. A nozzle fixing pipe is fixedly connected to the inner wall of the flue, and the nozzle fixing pipe is fixedly connected to the drain outlet of the solution pipe. Multiple nozzles are fixedly connected to the lower surface of the nozzle fixing pipe, and the nozzles are located inside the flue.

[0009] Preferably, the flue dust removal assembly includes a primary motor, which is fixedly connected to the right surface of the flue. A motor gear is fixedly connected to the output end of the primary motor. Eight fixing blocks are fixedly connected to the inner wall of the flue. A chain gear is rotatably connected to the end of each of the eight fixing blocks that is not connected to the flue. Multiple ball bearings are rotatably connected inside the chain gear. A driven gear is fixedly connected to the top surface of the chain gear closest to the motor gear. The driven gear is rotatably engaged with the corresponding fixing block. A connecting rod is rotatably connected inside the flue. Two chains are installed inside the flue, and scrapers are fixedly connected to corresponding positions on the two chains.

[0010] Preferably, the right surface of the flue is provided with a groove for the motor gear to rotate, the fixing block is horizontally "L" shaped, the chain gear is "I" shaped, the driven gear and the motor gear are meshed and connected, the upper and lower ends of the connecting rod are respectively fixedly connected to the chain gears, the two chains are respectively driven and sleeved on the outer wall of the eight chain gears, and the sewage tank is located below the scraper movement trajectory.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The flue cleaning device for steelmaking has a flue scraper assembly installed inside the flue. The No. 1 motor drives the motor gear, and then the connecting rod drives the eight chain gears to rotate simultaneously. The rotation of the eight chain gears drives the two chains to rotate, thereby driving the scraper on the chain to slide along the inner wall of the polygonal flue to complete the cleaning of the polygonal flue. It can clean the impurities in the corners of the square flue.

[0013] (2) The flue cleaning device for steelmaking delivers the solution to the solution pipe through the solution tank, and then sends the solution to the nozzle fixing pipe. The nozzle fixing pipe then sprays the solution into the interior of the flue through the nozzle, reducing the adhesion of impurities and assisting the scraper to remove impurities more easily. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of a flue cleaning device for steelmaking according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the flue of this utility model;

[0017] Figure 3 This is a schematic diagram of the chain structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the scraper of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the fan box of this utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the fan housing of this utility model;

[0021] Figure 7 This is a schematic diagram of the nozzle fixing tube of this utility model;

[0022] Figure 8 This is a cross-sectional structural diagram of the chain gear of this utility model;

[0023] Figure 9 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] Reference numerals: 1. Fan box; 2. Flue; 3. Smoke inlet pipe; 4. Fan door; 5. Motor No. 1; 6. Motor gear; 7. Solution tank; 8. Solution pipe; 9. Smoke outlet; 10. Nozzle fixing pipe; 11. Solution tank opening; 12. Ball bearing; 13. Wastewater tank; 14. Scraper; 15. Chain; 16. Fixing block; 17. Chain and gear; 18. Sewage pipe; 19. Impurity removal plate; 20. Limiting block; 21. Fan; 22. Fan motor; 23. Nozzle; 24. Driven gear; 25. Connecting rod. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Please see Figure 1-9 This utility model provides a technical solution: a flue cleaning device for steelmaking, including a fan box 1 and a flue 2. The fan box 1 is fixedly connected to the flue 2. A fan door 4 is rotatably connected to the front surface of the fan box 1. A smoke inlet pipe 3 is fixedly connected to the right surface of the fan box 1. A fan 21 is fixedly connected inside the fan box 1. A fan motor 22 is fixedly connected to the upper surface of the fan 21. The fan motor 22 is inside the fan box 1. Four limiting blocks 20 are fixedly connected inside the fan box 1. A cleaning plate 19 is slidably connected inside the fan box 1. The four limiting blocks 20 form two sliding grooves on the left and right inner walls of the fan box 1. The cleaning plate 19 is slidably connected to the grooves formed by the four limiting blocks 20. A sewage tank 13 is fixedly connected to the upper surface of the fan box 1. The outer wall of the sewage tank 13 is fixedly connected to the inner wall of the flue 2. A sewage pipe 18 is fixedly connected to the rear surface of the sewage tank 13. The sewage pipe 18 passes through the flue 2 and extends into the interior of the sewage tank 13. A smoke outlet 9 is opened at the upper end of the flue 2.

[0030] A water spray cleaning assembly is installed on the top of the flue 2, including a solution tank 7. The solution tank 7 is fixedly fitted onto the outer wall of the flue 2. A solution tank opening 11 is opened on the upper surface of the solution tank 7. A solution pipe 8 is fixedly connected to the outlet of the solution tank 7. A nozzle fixing pipe 10 is fixedly connected to the inner wall of the flue 2. The nozzle fixing pipe 10 is fixedly connected to the drain outlet of the solution pipe 8. Multiple nozzles 23 are fixedly connected to the lower surface of the nozzle fixing pipe 10. The nozzles 23 are located inside the flue 2.

[0031] The flue 2 is equipped with a flue scraper assembly, including a No. 1 motor 5. The No. 1 motor 5 is fixedly connected to the right surface of the flue, and a motor gear 6 is fixedly connected to the output end of the No. 1 motor 5. A groove is opened on the right surface of the flue 2 for the motor gear 6 to rotate. Eight fixing blocks 16 are fixedly connected to the inner wall of the flue 2. The fixing blocks 16 are horizontally "L"-shaped. The ends of the eight fixing blocks 16 that are not connected to the flue 2 are rotatably connected to a chain gear 17. The chain gear 17 is "I"-shaped, and multiple ball bearings 12 are rotatably connected inside the chain gear 17, close to the motor gear. A driven gear 24 is fixedly connected to the top surface of the chain gear 17 of wheel 6. The driven gear 24 is rotatably sleeved with the corresponding fixed block 16. The driven gear 24 and the motor gear 6 are meshed. A connecting rod 25 is rotatably connected inside the flue 2. The upper and lower ends of the connecting rod 25 are fixedly connected to the chain gear 17 respectively. Two chains 15 are installed inside the flue 2. The two chains 15 are respectively driven and sleeved on the outer wall of the eight chain gears 17. A scraper 14 is fixedly connected to the corresponding position of the two chains 15. The sewage tank 13 is located below the movement trajectory of the scraper 14.

[0032] Working principle:

[0033] Start the fan motor 22. The fan motor 22 rotates, driving the fan 21 to rotate. The rotation of the fan 21 generates suction, drawing the flue gas into the interior of the flue 2 through the flue pipe 3. The impurity removal plate 19 filters large particles in the flue gas. Open the fan door 4 to remove the impurity removal plate 19 for cleaning. Pour the cleaning solution into the solution tank 7 through the solution tank opening 11, and then let the solution flow into the nozzle fixing pipe 10 through the solution pipe 8. Turn on the nozzle 23 below the nozzle fixing pipe 10 to spray the solution into the interior of the flue 2. Start Motor 5 drives the driven gear 24 to rotate, which in turn drives the chain gear 17 to rotate. The chain gear 17 then drives the connecting rod 25 to rotate, which in turn drives the lower chain gear 17 to rotate, thereby driving the upper and lower chains 15 to rotate. The rotation of the chains 15 causes the scraper 14 to slide along the inner wall of the flue 2, thereby scraping off the deposits on the inner wall of the flue 2. The solution mixed with the deposits is scraped off into the sewage tank and discharged through the drain pipe 18.

[0034] The flue duct 2 is equipped with a flue scraper assembly. The first motor 5 drives the motor gear 6, and then the connecting rod 25 drives the eight chain gears 17 to rotate simultaneously. The rotation of the eight chain gears 17 drives the two chains 15 to rotate, thereby driving the scraper 14 on the chain 15 to slide along the inner wall of the polygonal flue 2 to clean the polygonal flue 2, which can clean the impurities in the corners of the square flue.

[0035] The solution is delivered from the solution tank 7 to the solution pipe 8, and then to the nozzle fixing pipe 10. The nozzle fixing pipe 10 then sprays the solution through the nozzle 23 into the interior of the flue 2, reducing the adhesion of impurities and assisting the scraper 14 in removing the impurities.

[0036] Structural Description:

[0037] Fan box 1: As part of the whole device, it is fixedly connected to the flue 2 and is one of the starting points for flue gas entry. Its front surface is rotatably connected to the fan door 4, which facilitates internal maintenance and cleaning. The right surface is fixedly connected to the flue pipe 3, and the inside is equipped with a fan 21 and a fan motor 22 to provide power for flue gas flow. It is also fixedly connected to four limit blocks 20 to cooperate with the impurity removal plate 19.

[0038] Flue 2: This is the core component of the device, used to transport the flue gas generated during steelmaking. A solution tank 7 is installed on it, and the interior contains structures such as nozzle fixing pipes 10 and chain gears 17. The inner wall is used to adhere impurities that need to be cleaned. It is connected to components such as fan box 1 and sewage tank 13 to form a complete flue gas treatment channel.

[0039] Smoke inlet pipe 3: It is fixedly connected to the right surface of the fan box 1 and is the channel for smoke to enter the fan box 1, introducing external smoke into the device.

[0040] Fan door 4: Rotatably connected to the front surface of fan box 1. After opening, the internal structure of fan box 1, such as the impurity removal plate 19, can be pulled out for cleaning and other maintenance operations.

[0041] Motor 5: Fixedly connected to the right surface of flue 2, its output end is connected to motor gear 6, and the rotation of the motor provides power to the flue scraper assembly.

[0042] Motor gear 6: It is fixedly connected to the output end of motor 5. Through meshing with driven gear 24, it transmits the power of motor 5 to components such as chain gear 17, thereby driving the flue dust scraping assembly to run.

[0043] Solution tank 7: It is fixedly sleeved on the outer wall of flue 2 and is used to store cleaning solution. The upper surface has a solution tank opening 11 for easy addition of solution. The water outlet is connected to the nozzle fixing pipe 10 through the solution pipe 8.

[0044] Solution pipe 8: One end is connected to the outlet of solution tank 7, and the other end extends into flue 2 and is connected to nozzle fixing pipe 10, so as to transport the decontamination solution in solution tank 7 to nozzle fixing pipe 10.

[0045] Smoke outlet 9: An opening on flue 2 for discharging treated flue gas, allowing the cleaned flue gas to exit the device.

[0046] Nozzle fixing pipe 10: It is fixedly connected inside the flue 2, and multiple nozzles 23 are fixedly connected to its lower surface. It is used to fix the nozzles 23 and distribute the solution delivered by the solution pipe 8 to each nozzle 23.

[0047] Solution tank opening 11: Located on the upper surface of solution tank 7, it is the inlet for adding cleaning solution into solution tank 7.

[0048] Ball bearing 12: Rotatably connected inside the chain gear 17, it can reduce the friction when the chain gear 17 rotates, making the chain gear 17 rotate more smoothly.

[0049] Wastewater tank 13: Located below the movement trajectory of scraper 14, it is fixedly connected to the upper surface of fan box 1. Its outer wall is connected to the inner wall of flue 2. It is used to collect wastewater and impurities generated when cleaning flue 2. Its rear surface is connected to drain pipe 18.

[0050] Scraper 14: It is fixedly connected to two chains 15 at the top and bottom, and slides along the inner wall of the flue 2 under the drive of the chains 15 to scrape off the attached substances on the inner wall of the flue 2.

[0051] Chain 15: meshes with the teeth of eight chain gears 17, and drives the chain gears 17 to move, thereby driving the scraper 14 to perform flue cleaning work.

[0052] Fixed blocks 16: Fixedly connected to the inner wall of flue 2, there are eight in total, and the other end is rotatably connected to chain gears 17, which serve to support and fix chain gears 17. Fixed blocks 16 are horizontal "L" shaped.

[0053] Chain gear 17: Rotatably connected to fixed block 16, it rotates under the drive of driven gear 24 and other components, thereby driving chain 15 and scraper 14 to move and achieve flue cleaning. Chain gear 17 is in the shape of "I".

[0054] Sewage pipe 18: Fixedly connected to the rear surface of sewage tank 13, passing through flue 2, and used to discharge sewage and impurities collected in sewage tank 13.

[0055] Impurity removal plate 19: It is slidably connected inside the fan box 1 and cooperates with four limit blocks 20. It is used to filter large particulate impurities in the flue gas and can be removed for cleaning by opening the fan door 4.

[0056] Limiting blocks 20: There are four in total, which are fixedly connected inside the fan box 1 to limit the sliding position of the impurity removal plate 19 and ensure that the impurity removal plate 19 filters the flue gas in the appropriate position.

[0057] Fan 21: Fixedly connected inside the fan box 1, it rotates under the drive of the fan motor 22, generating suction to draw the flue gas into the interior of the flue 2 through the smoke inlet pipe 3.

[0058] Fan motor 22: Fixedly connected to the upper surface of fan 21, providing power for the rotation of fan 21.

[0059] Nozzle 23: Fixedly connected to the lower surface of nozzle fixing tube 10, located inside flue 2, spraying the cleaning solution distributed by nozzle fixing tube 10 into the inside of flue 2.

[0060] Driven gear 24: meshes with the outer wall of motor gear 6, and is fixedly connected to chain gear 17 which is rotatably sleeved with the fixed block 16 near motor gear 6 and whose lower surface is rotatably connected to the fixed block 16, so as to transmit the power of motor gear 6 to chain gear 17.

[0061] Connecting rod 25: Located inside flue 2, the upper and lower ends of the connecting rod 25 are fixedly connected to the chain gears 17 respectively, and are used to connect the chain gears 17 at different positions to ensure that the chain gears 17 rotate synchronously.

[0062] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A flue cleaning device for steelmaking, comprising a fan box (1) and a flue (2), characterized in that: The fan box (1) is fixedly connected to the flue (2). A fan door (4) is rotatably connected to the front surface of the fan box (1). A smoke inlet pipe (3) is fixedly connected to the right surface of the fan box (1). A fan (21) is fixedly connected inside the fan box (1). A fan motor (22) is fixedly connected to the upper surface of the fan (21). Four limiting blocks (20) are fixedly connected inside the fan box (1). A cleaning plate (19) is slidably connected inside the fan box (1). The four limiting blocks (20) form two sliding grooves on the left and right inner walls of the fan box (1). A sewage tank (13) is fixedly connected to the upper surface of the fan box (1). A sewage pipe (18) is fixedly connected to the rear surface of the sewage tank (13). A smoke outlet (9) is opened at the upper end of the flue (2). A water spray cleaning component is installed on the top of the flue (2). A flue dust scraper component is installed inside the flue (2).

2. The flue gas cleaning device for steelmaking according to claim 1, characterized in that: The fan motor (22) is located inside the fan housing (1).

3. The flue gas cleaning device for steelmaking according to claim 1, characterized in that: The impurity removal plate (19) is slidably connected to the groove formed by the four limiting blocks (20).

4. The flue gas cleaning device for steelmaking according to claim 1, characterized in that: The outer wall of the sewage tank (13) is fixedly connected to the inner wall of the flue (2), and the sewage pipe (18) extends through the flue (2) into the interior of the sewage tank (13).

5. A flue gas cleaning device for steelmaking according to claim 1, characterized in that: The water spray cleaning assembly includes a solution tank (7), which is fixedly fitted onto the outer wall of the flue (2). A solution tank opening (11) is provided on the upper surface of the solution tank (7). A solution pipe (8) is fixedly connected to the outlet of the solution tank (7). A nozzle fixing pipe (10) is fixedly connected to the inner wall of the flue (2). The nozzle fixing pipe (10) is fixedly connected to the drain outlet of the solution pipe (8). Multiple nozzles (23) are fixedly connected to the lower surface of the nozzle fixing pipe (10). The nozzles (23) are located inside the flue (2).

6. The flue gas cleaning device for steelmaking according to claim 1, characterized in that: The flue dust removal assembly includes a No. 1 motor (5), which is fixedly connected to the right surface of the flue. The output end of the No. 1 motor (5) is fixedly connected to a motor gear (6). Eight fixing blocks (16) are fixedly connected to the inner wall of the flue (2). The ends of the eight fixing blocks (16) that are not connected to the flue (2) are rotatably connected to a chain gear (17). Multiple balls (12) are rotatably connected inside the chain gear (17). A driven gear (24) is fixedly connected to the top surface of the chain gear (17) near the motor gear (6). The driven gear (24) is rotatably sleeved with the corresponding fixing block (16). A connecting rod (25) is rotatably connected inside the flue (2). Two chains (15) are installed inside the flue (2). Scrapers (14) are fixedly connected to the corresponding positions of the two chains (15).

7. A flue gas cleaning device for steelmaking according to claim 6, characterized in that: The right surface of the flue (2) is provided with a groove for the motor gear (6) to rotate. The fixed block (16) is horizontally "L" shaped, the chain gear (17) is "I" shaped, the driven gear (24) and the motor gear (6) are meshed and connected, the upper and lower ends of the connecting rod (25) are fixedly connected to the chain gear (17) respectively, and the two chains (15) are respectively driven and sleeved on the outer wall of the eight chain gears (17). The sewage tank (13) is located below the movement trajectory of the scraper (14).

Images