A sealing device for a movable exhaust frame in a roasting furnace flue

Abstract

This utility model discloses a sealing device for a movable exhaust frame of a roasting furnace flue, comprising: a sealing ring, with the roasting furnace flue body fixedly installed below the sealing ring; a positioning mechanism for improving installation efficiency is provided on the upper side of the sealing ring and the inner side of the exhaust frame body, and an interception mechanism for preventing blockage of the exhaust frame body is provided inside the sealing ring and the exhaust frame body. This sealing device for a movable exhaust frame of a roasting furnace flue, by setting a positioning mechanism, allows for pre-positioning of the sealing device and the exhaust frame during installation, thereby improving installation efficiency. Simultaneously, the interception mechanism intercepts ash and slag generated during roasting inside the roasting furnace flue, effectively preventing ash and slag from entering the exhaust frame and causing blockage. Furthermore, the fixing mechanism fixes the position of the sealing device, further enhancing its sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of roasting furnace technology, specifically a sealing device for a moving exhaust frame of a roasting furnace fire channel. Background Technology

[0002] A roasting furnace is an important piece of equipment used in steelmaking and casting, and the fire channel wall is one of the key components of the roasting furnace. During the roasting process, the roasting furnace produces a large amount of flue gas. In order to purify the flue gas for discharge, a movable exhaust frame can be connected and installed on the upper side of the roasting furnace. To prevent the leakage of flue gas during installation, both need to be sealed. Currently, there are various sealing devices for movable exhaust frames for roasting furnace fire channels on the market, but some shortcomings still exist.

[0003] For example, Chinese utility model patent CN221975829U discloses a movable exhaust frame sealing device for the flue of a prebaked anode calcining furnace. The exhaust base is a hollow structure detachably connected to the top of the flue. An elastic sealing steel plate is located between the first and second vertical walls, supported by a high-temperature resistant sealing rubber rod and limited by positioning bolts. A flexible seal is formed between the high-temperature resistant sealing rubber rod, the elastic sealing steel plate, and the exhaust base. The exhaust frame is supported by the elastic sealing steel plate, a guide plate is located on the inner wall of the exhaust frame and extends downwards at an angle, and a wing plate is located outside the exhaust frame. A sealing elastic asbestos pad is installed on the bottom surface of the wing plate and surrounds the exhaust frame in a sealed manner. The sealing elastic asbestos pad is sealed to the second vertical wall. This device has good sealing performance, stable airflow, and a long service life.

[0004] The existing technologies mentioned above have the following technical problems: when installing the exhaust frame on the upper side of the fire duct, it is impossible to position it in advance, which greatly increases the difficulty of installation. At the same time, a large amount of ash and slag will enter the exhaust frame when the flue gas enters it. If the large ash and slag are not intercepted, the exhaust frame will be blocked. Secondly, the sealing device cannot fix the position, which can easily lead to loosening and other problems. Therefore, we propose a sealing device for a movable exhaust frame of the fire duct of a roasting furnace to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing device for a movable exhaust rack in a roasting furnace flue, in order to solve the problems mentioned in the background art. Currently, when the exhaust rack is installed on the upper side of the flue, it is impossible to position it in advance, which greatly increases the difficulty of installation. At the same time, a large amount of ash and slag will enter the exhaust rack, and failure to intercept large ash and slag will lead to blockage of the exhaust rack. In addition, the sealing device cannot fix the position, which can easily cause problems such as loosening.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing device for a movable exhaust frame in a roasting furnace flue, comprising:

[0007] A sealing ring is provided, and a roasting furnace fire channel body is fixedly installed below the sealing ring. A smoke exhaust frame body is provided on the upper side of the roasting furnace fire channel body.

[0008] Also includes:

[0009] The upper side of the sealing ring and the inner side of the smoke exhaust frame body are provided with a positioning mechanism to improve installation efficiency, and the sealing ring and the inside of the smoke exhaust frame body are provided with an interception mechanism to prevent the smoke exhaust frame body from becoming blocked.

[0010] Preferably, the positioning mechanism provided on the upper side of the sealing ring and the inner side of the exhaust frame body includes a sealing ring, a roasting furnace flue body, a positioning groove, and an exhaust frame body. The sealing ring has a fixing block set at equal angles inside, and the roasting furnace flue body is fixedly installed inside the fixing block set at equal angles inside the sealing ring. The fixing block set inside the sealing ring is engaged with the positioning groove, and the positioning groove is opened at equal angles inside the lower part of the exhaust frame body.

[0011] Preferably, the interception mechanism inside the roasting furnace flue body and the exhaust frame body includes a locking block, a scraper, a second bolt, a rotating column, a first bevel gear, a second bevel gear, a handle, and a third bolt. A filter screen is installed inside the sealing ring, and a locking block is locked to the bottom of the filter screen. The locking block is installed at an equal angle inside the sealing ring. A scraper is slidably connected to the bottom of the filter screen. The scraper is fixedly installed on the outside of the rotating column, and the rotating column is rotatably connected to the filter screen. A first bevel gear is fixedly connected to the top of the rotating column, and a second bevel gear is meshed with the outside of the first bevel gear. A handle is fixedly connected to the outside of the second bevel gear, and the handle is fixedly connected to the exhaust frame body by the third bolt.

[0012] Preferably, a sealing rubber rod is provided inside the sealing ring, and a sealing elastic asbestos pad is tightly attached to the top of the sealing rubber rod. The sealing elastic asbestos pad is installed below the wing plate, and the exhaust frame body is fixedly connected inside the wing plate.

[0013] Preferably, limiting blocks are symmetrically installed on the lower outer side of the sealing elastic asbestos pad, and the limiting blocks and the sealing ring are fixedly installed by the first bolt.

[0014] Preferably, mounting blocks are symmetrically fixedly installed on the front and rear exterior of the smoke exhaust frame body, and the internal mounting blocks are rotatably mounted by reinforcing plates.

[0015] Preferably, the lower side of the reinforcing plate is fixedly connected to the lower part of the sealing ring by a second bolt.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The sealing device for the movable exhaust frame of the roasting furnace fire channel is equipped with a positioning mechanism, which allows the sealing device to be positioned before installation with the exhaust frame, thereby improving the installation efficiency. At the same time, an interception mechanism is set up to intercept the ash and slag produced inside the roasting furnace fire channel, which can effectively prevent the ash and slag from entering the interior of the exhaust frame and causing blockage. In addition, a fixing mechanism is set up to fix the position of the sealing device, thereby further enhancing the sealing effect of the sealing device.

[0017] 1. A positioning groove is set up. A fixing block is set at an equal angle on the inner side of the sealing ring. The inside of the fixing block is fixedly connected to the main body of the roasting furnace fire channel. The fixing block set inside the sealing ring can be engaged with the positioning groove opened at an equal angle on the lower part of the smoke rack body. This positioning is used to position the installation and connection of the main body of the roasting furnace fire channel and the smoke rack body, which facilitates the subsequent installation of the main body of the roasting furnace fire channel and the smoke rack body.

[0018] 2. Equipped with a filter screen, the filter screen installed inside the sealing ring can intercept the ash and slag produced during roasting inside the fire channel of the roasting furnace, effectively preventing the ash and slag from entering the interior of the flue.

[0019] 3. Equipped with a scraper, which is located below the filter screen and can rotate below the filter screen, it can effectively scrape off the ash and slag adhering to the bottom of the filter screen and effectively prevent the filter screen from clogging.

[0020] 4. It is equipped with mounting blocks and reinforcing plates. After the sealing ring and the smoke exhaust frame body are connected, mounting blocks are symmetrically installed on the front and rear sides of the exterior of the smoke exhaust frame body. The reinforcing plates are rotatably installed inside the mounting blocks. The bottom of the reinforcing plates can be fixedly connected to the bottom of the sealing ring by a second bolt, which can further strengthen the connection between the sealing ring and the smoke exhaust frame body. Attached Figure Description

[0021] Figure 1 This is a perspective structural diagram of the present invention;

[0022] Figure 2 This is a perspective view of the connection structure of the locking block, scraper, and second bolt of this utility model.

[0023] Figure 3 This is a perspective structural diagram showing the connection between the smoke exhaust rack body, mounting block, and reinforcing plate of this utility model;

[0024] Figure 4 This is a perspective view of the connection structure of the sealing ring, the fire channel body of the roasting furnace, and the sealing rubber rod of this utility model.

[0025] Figure 5This is a perspective view of the connection structure of the sealing elastic asbestos gasket, wing plate, and limiting block of this utility model;

[0026] Figure 6 This is a perspective view of the connection structure of the second bolt, rotating column and first bevel gear of this utility model.

[0027] In the diagram: 1. Sealing ring; 2. Roasting furnace flue body; 3. Sealing rubber rod; 4. Positioning groove; 5. Sealing elastic asbestos gasket; 6. Wing plate; 7. Limiting block; 8. First bolt; 9. Filter screen; 10. Engaging block; 11. Scraper; 12. Second bolt; 13. Rotating column; 14. First bevel gear; 15. Second bevel gear; 16. Handle; 17. Third bolt; 18. Exhaust frame body; 19. Mounting block; 20. Reinforcing plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 This utility model provides a technical solution:

[0030] To address the problems existing in the prior art, this embodiment provides the following technical solution: a sealing device for a movable exhaust frame of a calcining furnace flue, comprising a sealing ring 1; a positioning mechanism, disposed on the upper side of the sealing ring 1 and the inner side of the exhaust frame body 18, which can position the sealing ring 1 and the exhaust frame body 18 before installation and connection, thus facilitating the installation and connection of the sealing ring 1 and the exhaust frame body 18; an interception mechanism, disposed inside the sealing ring 1 and the exhaust frame body 18, which can effectively intercept the ash and dust from the calcining furnace, preventing the ash and dust from entering the interior of the exhaust frame body 18 and causing blockage; and a fixing mechanism, disposed on the front and rear sides of the exhaust frame body 18, which can fix the sealing device and further enhance the sealing performance of the sealing ring 1 and the exhaust frame body 18.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, a sealing ring 1 is installed above the fire channel body 2 of the roasting furnace. A sealing rubber rod 3 is installed inside the sealing ring 1. At the same time, a fixing block is set at an equal angle inside the upper part of the sealing ring 1. The fire channel body 2 of the roasting furnace is fixedly connected inside the fixing block. In addition, a positioning groove 4 is opened at an equal angle inside the lower part of the smoke exhaust frame body 18. That is, when it is necessary to install the smoke exhaust frame body 18 above the sealing ring 1, the fixing block set above the sealing ring 1 can be engaged with the positioning groove 4 set inside the lower part of the smoke exhaust frame body 18. At this time, the sealing rubber rod 3 set inside the sealing ring 1 can fit with the sealing elastic asbestos pad 5 installed below the wing plate 6 installed on the outside of the smoke exhaust frame body 18.

[0032] In addition, limiting blocks 7 are symmetrically installed on the left and right sides below the sealing elastic asbestos gasket 5. The limiting blocks 7 can fit against the outer side of the sealing ring 1. Then, the first bolt 8 can be inserted into the limiting blocks 7 and the sealing ring 1 to tighten and limit the position. The setting of the sealing rubber rod 3 and the sealing elastic asbestos gasket 5 can enhance the sealing performance of the connection between the sealing ring 1 and the smoke exhaust frame body 18. The sealing ring 1, the sealing rubber rod 3 and the sealing elastic asbestos gasket 5 together constitute a sealing element.

[0033] After the sealing ring 1 and the smoke exhaust frame body 18 are installed and connected, mounting blocks 19 are symmetrically installed on the front and rear sides of the exterior of the smoke exhaust frame body 18. The reinforcing plate 20 is rotatably installed inside the mounting block 19. The reinforcing plate 20 can be rotated so that its lower side fits against the lower side of the sealing ring 1. Then, the second bolt 12 can be inserted into the interior of the reinforcing plate 20 and the sealing ring 1 for tightening and fixing. That is, the setting of the reinforcing plate 20 can further enhance the sealing performance of the sealing ring 1 and the smoke exhaust frame body 18.

[0034] like Figure 3 , Figure 4 and Figure 6 As shown, after the sealing ring 1 and the flue frame body 18 are installed and connected, the flue gas inside the roasting furnace fire channel body 2 can enter the interior of the flue frame body 18 for purification and discharge. A filter screen 9 is installed inside the sealing ring 1. The bottom of the filter screen 9 is firmly engaged with the locking block 10 installed at the same angle inside the sealing ring 1. The filter screen 9 can effectively intercept the ash and slag generated from roasting inside the roasting furnace fire channel body 2 from entering the interior of the flue frame body 18.

[0035] A rotating column 13 is installed inside the filter screen 9. A scraper 11 is fixedly installed on the lower outer side of the rotating column 13. A first bevel gear 14 is fixedly installed on the upper end of the rotating column 13. The outer side of the first bevel gear 14 is meshed with a second bevel gear 15. A handle 16 is fixedly installed on the outside of the second bevel gear 15. The handle 16 is fixedly connected to the exhaust frame body 18 by a third bolt 17. The handle 16 and the exhaust frame body 18 can be unscrewed and the third bolt 17 can be pulled out. The handle 16 can then be rotated, causing the second bevel gear 15 connected to the handle 16 to rotate. This will cause the meshing first bevel gear 14 to rotate as well. The scraper 11 connected to the rotating column 13 installed below the first bevel gear 14 will scrape the bottom of the filter screen 9. The scraper 11 can scrape off the dust stuck to the bottom of the filter screen 9, ensuring that the flue gas inside the roasting furnace flue body 2 flows normally into the exhaust frame body 18 for a long time.

[0036] The working principle of the sealing device for the movable exhaust frame of the calcining furnace fire passage is as follows: Before the sealing ring 1 and the exhaust frame body 18 are installed and connected, the position can be limited, thereby accelerating the rapid and accurate installation of the sealing ring 1 and the exhaust frame body 18. At the same time, a filter screen 9 is set inside the sealing ring 1. The filter screen 9 can intercept the ash and slag generated inside the calcining furnace fire passage body 2, effectively preventing ash and slag from entering the exhaust frame body 18 and causing blockage. After the sealing ring 1 and the exhaust frame body 18 are connected and installed, the reinforcing plate 20 set on the outside of the exhaust frame body 18 can be fixed to the sealing ring 1, thereby further strengthening the sealing performance of the connection between the sealing ring 1 and the exhaust frame body 18.

[0037] Contents not described in detail in this specification are common knowledge to those skilled in the art. All standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature in the prior art. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0038] 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. A sealing device for a movable exhaust frame in a roasting furnace flue, comprising: A sealing ring (1) is fixedly installed below the sealing ring (1), and a smoke exhaust frame body (18) is provided on the upper side of the smoke exhaust frame body (2). Its characteristic is that it further includes: The upper side of the sealing ring (1) and the inner side of the smoke exhaust frame body (18) are provided with a positioning mechanism to improve installation efficiency, and the sealing ring (1) and the interior of the smoke exhaust frame body (18) are provided with an interception mechanism to prevent the smoke exhaust frame body (18) from becoming blocked.

2. A sealing device for a moving flue of a roasting furnace according to claim 1, characterized in that: The positioning mechanism provided on the upper side of the sealing ring (1) and the inner side of the exhaust frame body (18) includes the sealing ring (1), the roasting furnace fire channel body (2), the positioning groove (4) and the exhaust frame body (18). The sealing ring (1) has a fixing block set at equal angles inside, and the roasting furnace fire channel body (2) is fixedly installed inside the fixing block set at equal angles inside the sealing ring (1). The fixing block set inside the sealing ring (1) is engaged with the positioning groove (4), and the positioning groove (4) is opened at equal angles inside the lower part of the exhaust frame body (18).

3. The sealing device for the movable exhaust frame of a roasting furnace flue according to claim 1, characterized in that: The interception mechanism inside the roasting furnace flue body (2) and the flue frame body (18) includes a locking block (10), a scraper (11), a second bolt (12), a rotating column (13), a first bevel gear (14), a second bevel gear (15), a handle (16), and a third bolt (17). A filter screen (9) is installed inside the sealing ring (1), and a locking block (10) is engaged below the filter screen (9). The locking block (10) is installed at equal angles inside the sealing ring (1), and the filter screen (9)... A scraper (11) is slidably connected below the filter screen (9). The scraper (11) is fixedly installed on the outside of the rotating column (13). The rotating column (13) is rotatably connected to the filter screen (9). A first bevel gear (14) is fixedly connected to the top of the rotating column (13). A second bevel gear (15) is meshed on the outside of the first bevel gear (14). A handle (16) is fixedly connected to the outside of the second bevel gear (15). The handle (16) is fixedly connected to the smoke exhaust frame body (18) by a third bolt (17).

4. The sealing device for the movable exhaust frame of a roasting furnace flue according to claim 1, characterized in that: The sealing ring (1) is provided with a sealing rubber rod (3) inside, and a sealing elastic asbestos pad (5) is tightly attached to the top of the sealing rubber rod (3). The sealing elastic asbestos pad (5) is installed below the wing plate (6), and the smoke exhaust frame body (18) is fixedly connected inside the wing plate (6).

5. A sealing device for a movable exhaust frame in a roasting furnace flue according to claim 4, characterized in that: The sealing elastic asbestos pad (5) is symmetrically fitted with limiting blocks (7) on the lower outer side, and the limiting blocks (7) and the sealing ring (1) are fixedly installed by the first bolt (8).

6. The sealing device for the movable exhaust frame of a roasting furnace flue according to claim 1, characterized in that: The exterior of the smoke exhaust frame body (18) is symmetrically fixed with mounting blocks (19), and the interior of the mounting blocks (19) is rotatably mounted with reinforcing plates (20).

7. A sealing device for a movable exhaust frame in a roasting furnace flue according to claim 6, characterized in that: The lower side of the reinforcing plate (20) is fixedly connected to the lower side of the sealing ring (1) by a second bolt (12).

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