A longitudinal sealing device for a grate cooler

Abstract

The present application relates to the technical field of grate cooler, particularly to a longitudinal sealing device of grate cooler, which is installed between two adjacent rows of grate beds, comprising an outer sealing element and an inner sealing element, the cross section of the outer sealing element is a door-shaped structure and is installed on one row of grate beds, the cross section of the inner sealing element is a U-shaped structure and is installed on the other row of grate beds, the side plate of the outer sealing element away from the grate bed is inserted into the inner sealing element from top to bottom, and an air duct gap is formed between the outer sealing element and the inner sealing element, the air duct gap is composed of two horizontal gaps and three vertical gaps; a horizontal protruding edge is horizontally extended on the upper end of the outer sealing element close to the inner sealing element, and another horizontal gap is formed between the horizontal protruding edge and the upper end of the inner sealing element, which is communicated with the air duct gap; the present application can greatly reduce the material leakage rate.

Description

Technical Field

[0001] This invention relates to the field of grate cooler technology, and in particular to a longitudinal sealing device for a grate cooler. Background Technology

[0002] In the cement and building materials industry, the grate cooler, as a thermal device, plays an irreplaceable role in material cooling, crushing, and heat recovery. In cement production, the grate cooler is closely integrated with the precalciner kiln system, cyclone separator, heat exchange pipes, precalciner furnace, and rotary kiln, forming a complete new dry-process cement clinker calcination device system.

[0003] Currently, the more advanced grate coolers all adopt the walking beam cooler, also known as the shuttle motion cooler. Since the moving section of the grate plate moves horizontally in a walking beam manner, the longitudinal sealing device between the rows of grate beds plays a role in preventing material leakage and air cross-contamination in the cooler. When the grate bed makes complex relative movements, the longitudinal sealing device must ensure that the high-pressure cooling air penetrates the material layer upwards, while completely blocking the downward leakage of high-temperature clinker fine powder.

[0004] In the prior art, such as the inter-row sealing device of the movable grate bed of the stepping grate cooler disclosed in CN202511636U, and the sealing device of the stepping grate bed disclosed in CN219796103U, the sealing air duct formed in the above two technical solutions consists of two vertical air ducts and two horizontal air ducts, and there is still a certain leakage rate. Therefore, a longitudinal sealing device for the grate cooler that can significantly reduce the leakage rate is needed. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this invention is to provide a longitudinal sealing device for a grate cooler, which can significantly reduce the leakage rate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A longitudinal sealing device for a grate cooler is installed between two adjacent rows of grates. It includes an outer sealing element and an inner sealing element. The outer sealing element has a gate-shaped cross-section and is fitted to one row of grates. The inner sealing element has a U-shaped cross-section and is fitted to the other row of grates. The side plate of the outer sealing element away from the grate is inserted into the inner sealing element from top to bottom, forming an air duct gap between the outer sealing element and the inner sealing element. The air duct gap consists of two horizontal gaps and three vertical gaps.

[0008] The upper end of the outer seal has a horizontally extending convex edge near the inner seal, and the horizontal convex edge and the upper end of the inner seal form another horizontal gap that communicates with the air duct gap.

[0009] Preferably, the outer sealing member has a fitting groove for grate installation on the outer sealing side plate that fits against the grate bed.

[0010] Preferably, a space groove is formed at the upper end of the outer side plate.

[0011] Preferably, a limiting groove is provided on the side of the grate bed of the fitting groove, and a vertical adjustment mechanism is installed in the limiting groove. The vertical adjustment mechanism is fixed to the grate bed to adjust the width of the three horizontal gaps.

[0012] Preferably, the vertical adjustment mechanism includes a sliding plate, an L-shaped plate, and an adjusting bolt. The sliding plate slides vertically within the limiting groove, the L-shaped plate is fixed to the lower end of the sliding plate, and the adjusting bolt rotates on the L-shaped plate and is threadedly connected to the lower end of the outer side plate.

[0013] Preferably, a spring is provided between the L-shaped plate and the outer side plate.

[0014] Preferably, a wear-resistant plate is fixedly installed on the upper end of the outer seal and the upper end face of the horizontal flange by a wear-resistant bolt, and the wear-resistant bolt passes through the wear-resistant plate and is threadedly connected to the upper end of the outer seal.

[0015] Preferably, the inner sealing member has a second fitting groove on the inner sealing side plate that fits the grate bed for grate bed installation.

[0016] Preferably, the upper end of the inner sealing side plate is provided with a second space groove, the second space groove is provided with an installation groove near the outer sealing element, a baffle assembly is rotatably installed in the installation groove, and the other side of the second space groove is provided with a shielding edge and a slot for limiting the position of the baffle assembly.

[0017] Preferably, the baffle assembly includes a main baffle, a rotating shaft, a telescopic plate, a second spring, a deflector plate, and a through hole. One end of the main baffle rotates within the upper part of the mounting groove via the rotating shaft, and the other end of the main baffle is slidably connected to a telescopic plate. A second spring is provided between the telescopic plate and the main baffle. A deflector plate is provided at the upper end of the telescopic plate, and the deflector plate slides within the through hole provided on the main baffle.

[0018] The present invention has the following beneficial effects:

[0019] During the installation of the outer and inner seals, the outer and inner seals are inserted and fitted together to form an air duct gap consisting of two horizontal gaps and three vertical gaps. At the same time, by means of a horizontal protrusion located at the upper end of the inner seal, one end of the air duct gap is extended by another horizontal gap. Thus, the entire air duct gap has three horizontal gaps and three vertical gaps. Compared with the two vertical air ducts and two horizontal air ducts in the prior art, this method significantly reduces the material leakage rate while ensuring ventilation of the air duct gaps, and effectively prevents air leakage from the air chamber from blowing fine materials into the sealing area. Attached Figure Description

[0020] Figure 1 and Figure 2 This is a schematic diagram of the structure of a longitudinal sealing device for a grate cooler;

[0021] Figure 3 This is a cross-sectional structural schematic diagram of a longitudinal sealing device for a grate cooler;

[0022] Figure 4 and Figure 5 This is a structural schematic diagram of the external seal;

[0023] Figure 6 This is a structural diagram of wear-resistant bolts and wear-resistant plates;

[0024] Figure 7 This is a structural schematic diagram of the internal seal;

[0025] Figure 8 This is a cross-sectional view of the baffle assembly;

[0026] Figure 9 This is a structural schematic diagram of the main baffle;

[0027] Figure 10 This is a structural diagram of the telescopic plate;

[0028] Figure 11 This is a schematic diagram of the vertical adjustment mechanism.

[0029] In the picture:

[0030] 1. External seal; 11. Horizontal flange; 12. External sealing side plate; 13. Fitting groove; 14. Space groove; 15. Limiting groove; 16. Wear-resistant bolt; 17. Wear-resistant plate;

[0031] 2. Inner seal; 21. Inner sealing side plate; 22. Fitting groove 2; 23. Space groove 2; 24. Mounting groove; 25. Baffle assembly; 251. Main baffle; 252. Rotating shaft; 253. Telescopic plate; 254. Spring 2; 255. Paddle plate; 256. Through hole; 26. Shielding edge; 27. Slot;

[0032] Vertical adjustment mechanism 3; sliding plate 31; L-shaped plate 32; adjusting bolt 33; spring 34. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] Combination Figure 1-4 A longitudinal sealing device for a grate cooler is installed between two adjacent rows of grates. It includes an outer sealing element 1 and an inner sealing element 2. The outer sealing element 1 has a door-shaped cross-section and is fitted to one row of grates. The inner sealing element 2 has a U-shaped cross-section and is fitted to the other row of grates. The side plate of the outer sealing element 1 away from the grate is inserted into the inner sealing element 2 from top to bottom, forming an air duct gap between the outer sealing element 1 and the inner sealing element 2. The air duct gap consists of two horizontal gaps and three vertical gaps.

[0040] A horizontal protrusion 11 extends horizontally from the upper end of the outer seal 1 to the side near the inner seal 2. The horizontal protrusion 11 and the upper end of the inner seal 2 form another horizontal gap that communicates with the gap in the air duct.

[0041] Specifically, the lower end of the outer seal 1 is recessed upwards with a sealing groove, forming a door-shaped structure in its cross-section; the upper end of the inner seal 2 is recessed downwards with a sealing groove, forming a U-shaped structure in its cross-section, as shown in the attached diagram. Figure 3As shown, the left side of the outer seal 1 is fixed to a row of grates on the left side, and the right side of the inner seal 2 is fixed to another row of grates on the right side. When the outer seal 1 and the inner seal 2 are installed, the side plate on the right side of the outer seal 1 is inserted into the sealing groove 2, and the side plate on the left side of the inner seal 2 is inserted into the sealing groove 1. This makes the outer seal 1 and the inner seal 2 form an air duct gap composed of two horizontal gaps and three vertical gaps. At the same time, the horizontal protrusion 11 is located at the upper end of the inner seal 2, which extends one end of the air duct gap by a horizontal gap. This makes the entire air duct gap have three horizontal gaps and three vertical gaps. Compared with the two vertical air ducts and two horizontal air ducts in the prior art, this method greatly reduces the leakage rate while ensuring ventilation of the air duct gaps, and effectively prevents the air chamber from blowing fine materials into the sealing area.

[0042] It should be noted that both the outer seal 1 and the inner seal 2 have overlapping edges and overlapping grooves at their longitudinal ends, so that when two adjacent outer seals 1 or two inner seals 2 are connected in the longitudinal direction, they can be better positioned and matched and the sealing effect can be guaranteed.

[0043] Combination Figure 3-5 In one embodiment, the outer sealing member 1 has an outer sealing side plate 12 that fits against the grate bed, and is provided with a fitting groove 13 for grate bed installation.

[0044] Specifically, the fitting groove 13 is located at the lower part of the outer seal 1 near the grate bed, thereby forming an upper edge at the upper end of the fitting groove 13. This allows the corresponding position of the grate bed to be embedded in the fitting groove 13 during installation, ensuring a closed installation between the outer seal 1 and the grate bed. Furthermore, the upper edge and the corresponding position of the grate bed form a locking limit, preventing vertical spacing between the outer seal 1 and the inner seal 2 caused by installation errors between the outer seal 1 and the grate bed. This ensures the gap width of the three horizontal gaps in the air duct when the outer seal 1 and the inner seal 2 are installed, thus ensuring ventilation of the air duct gap.

[0045] Combination Figure 4-5 Based on the above embodiments, in one embodiment, a space groove 14 is provided at the upper end of the outer side plate 12.

[0046] Specifically, when the grate is installed by embedding it into the fitting groove 13, it is necessary to install bolts through the grate installation position and the corresponding position of the outer sealing side plate 12. Therefore, in order to facilitate the installation of bolts, a space groove 14 is opened downward at the upper end of the outer sealing side plate 12. The space groove 14 facilitates the operation of the bolts through the grate installation position and the corresponding position of the outer sealing side plate 12 for tightening and fixing.

[0047] Combination Figure 3 , Figure 5 , Figure 11In one embodiment, the fitting groove 13 fits the side of the grate bed and has a limiting groove 15. A vertical adjustment mechanism 3 is installed in the limiting groove 15. The vertical adjustment mechanism 3 is fixed to the grate bed to adjust the width of the three horizontal gaps.

[0048] In practical applications, the guide rails and support rollers at the lower end of the grate have lateral limiting to keep the spacing between adjacent rows of grates constant. However, in the vertical direction, due to overall installation errors and deformation caused by different pressures from the thickness of the clinker, there is a certain height difference between adjacent grates. Therefore, when installing the outer seal 1 on the grate, the grate is fixed to the vertical adjustment mechanism 3. The vertical adjustment mechanism 3 can adjust the height of the outer seal 1 relative to the grate, that is, adjust the gap width of the three horizontal gaps in the air duct, so as to avoid blockage of the air duct gaps.

[0049] Combination Figure 11 In one embodiment, the vertical adjustment mechanism 3 includes a sliding plate 31, an L-shaped plate 32, and an adjusting bolt 33. The sliding plate 31 slides vertically in the limiting groove 15, the L-shaped plate 32 is fixed to the lower end of the sliding plate 31, and the adjusting bolt 33 rotates on the L-shaped plate 32 and is threadedly connected to the lower end of the outer side plate 12.

[0050] Specifically, the sliding plate 31 has a T-shaped cross-section in the vertical direction, and the limiting groove 15 also has a T-shaped cross-section in the vertical direction. Thus, the sliding plate 31 can slide vertically within the limiting groove 15 and form a limit, so that the sliding plate 31 can only move vertically within the limiting groove 15. The sliding plate 31 is provided with a mounting threaded hole for threaded engagement with a bolt that passes through the grate installation position. By screwing the bolt into the mounting threaded hole, the grate and the sliding plate 31 can be fixed relative to each other. The L-shaped plate 32 is fixed at the lower end of the sliding plate 31 and extends below the outer dense side plate 12. The lower part of the outer dense side plate 12 is provided with a threaded hole for threaded engagement with the adjusting bolt 33.

[0051] In actual use, rotating the adjusting bolt 33 allows it to move axially within the threaded hole below the outer sealing side plate 12, which in turn engages with the threaded hole. This movement, via the L-shaped plate 32, causes the sliding plate 31 to move up and down within the limiting groove 15. This adjusts the relative horizontal height of the mounting threaded hole on the sliding plate 31, thereby adjusting the height of the outer sealing element 1 relative to the grate bed. In other words, it adjusts the width of the three horizontal gaps in the air duct, preventing blockage of the air duct gaps.

[0052] Preferably, there is a certain distance between the upper end of the limiting groove 15 and the upper edge of the fitting groove 13, and the side of the sliding plate 31 near the grate is located inside the limiting groove 15. That is, when the grate is tightened and fixed by bolts to the mounting threaded holes on the sliding plate 31, the grate installation position is always in contact with the outer side of the fitting groove 13. The distance between the limiting groove 15 and the upper edge ensures that the upper end of the grate installation position is always in contact with the outer side of the fitting groove 13 and is sealed, and is not affected by the position of the sliding plate 31, thus avoiding the leakage caused by gaps between the outer seal 1 and the grate.

[0053] Combination Figure 11 In one embodiment, a spring 34 is provided between the L-shaped plate 32 and the outer side plate 12.

[0054] By setting the spring 34, the L-shaped plate 32 always tends to move downward away from the outer close-fitting side plate 12, thereby pulling the adjusting bolt 33 downward in the threaded hole at the lower end of the outer close-fitting side plate 12, thus eliminating the gap between the threads and ensuring that the adjusting bolt 33 can accurately adjust the gap width of the three horizontal gaps.

[0055] Combination Figure 3-6 In one embodiment, the upper end of the outer seal 1 and the upper end face of the horizontal flange 11 are fitted and fixed with a wear-resistant plate 17 by a wear-resistant bolt 16, and the wear-resistant bolt 16 passes through the wear-resistant plate 17 and is threadedly connected to the upper end of the outer seal 1.

[0056] In actual use, since the outer seal 1 is fastened to the inner seal 2 from top to bottom, the upper surface of the outer seal 1 is in complete contact with the clinker. With the relative movement between the grate beds, the upper end of the outer seal 1 will be greatly worn, which will affect the service life of the outer seal 1. Therefore, wear-resistant plate 17 is installed on the upper end of the outer seal 1 by wear-resistant bolts 16 to form protection for the outer seal 1 and improve the service life of the outer seal 1.

[0057] It should also be noted that the hexagonal end of the wear-resistant bolt 16 is provided with an internal hexagonal groove to prevent the hexagonal end of the wear-resistant bolt 16 from being severely worn, making it impossible to disassemble and install with a wrench, thus affecting the use of the wear-resistant plate 17.

[0058] Combination Figure 7 In one embodiment, the inner sealing member 2 has a fitting groove 22 for grate installation on the inner sealing side plate 21 that fits against the grate bed.

[0059] Specifically, the second fitting groove 22 is located at the lower part of the inner seal 2 near the grate bed, thereby forming an upper edge 2 at the upper end of the second fitting groove 22. When installed with the grate bed, the corresponding position of the grate bed can be embedded in the second fitting groove 22, ensuring a closed installation between the inner seal 2 and the grate bed. Moreover, the upper edge 2 and the corresponding position of the grate bed form a snap-fit ​​limit, ensuring the stability of the installation and positioning of the grate bed and the inner seal 2.

[0060] Combination Figure 8 In one embodiment, the upper end of the inner sealing side plate 21 is provided with a space groove 23, and the space groove 23 is provided with an installation groove 24 near the outer sealing member 1. A baffle assembly 25 is rotatably installed in the installation groove 24. The other side of the space groove 23 is provided with a shielding edge 26 and a slot 27 for limiting the position of the baffle assembly 25.

[0061] Specifically, when the grate is installed by embedding it into the fitting groove 22, it is necessary to install bolts through the grate installation position and the corresponding position of the inner sealing side plate 21. Therefore, in order to facilitate the installation of bolts, a space groove 23 is opened downward at the upper end of the inner sealing side plate 21. The space groove 23 facilitates the operation of the bolts through the grate installation position and the corresponding position of the inner sealing side plate 21 for tightening, thereby completing the installation and fixing of the grate and the inner sealing component 2.

[0062] Meanwhile, due to the creation of the second space groove 23, the longitudinal sealing device has a larger material accumulation cavity volume. To prevent material accumulation in this space, an installation groove 24, a baffle assembly 25, and a shielding edge 26 are provided. The installation groove 24 is recessed outward towards the sealing element 1. When the baffle assembly 25 is in a horizontal state at the upper end of the second space groove 23, the baffle assembly 25, which rotates with the installation end of the installation groove 24, will be shielded by the upper edge of the installation groove 24. The other end of the baffle assembly 25 is shielded by the shielding edge 26. Thus, the baffle assembly 25, in conjunction with the upper edge of the installation groove 24 and the shielding edge 26, completes the shielding of the second space groove 23, preventing material accumulation in this space. In this state, the end of the baffle assembly 25 near the shielding edge 26 engages with the slot 27, forming a state lock in this state, ensuring the shielding of the second space groove 23. Moreover, by rotating the baffle assembly 25, the upper end of the second space groove 23 can be opened to complete the fixed installation of the bolt group.

[0063] It should be noted that the space slot 23 is offset from the horizontal protrusion 11 at its top to avoid affecting the air duct gap.

[0064] Combination Figure 9-10In one embodiment, the baffle assembly 25 includes a main baffle 251, a rotating shaft 252, a telescopic plate 253, a second spring 254, a lever 255, and a through hole 256. One end of the main baffle 251 is rotated in the upper end of the mounting groove 24 via the rotating shaft 252. The other end of the main baffle 251 is slidably connected to the telescopic plate 253. A second spring 254 is provided between the telescopic plate 253 and the main baffle 251. A lever 255 is provided at the upper end of the telescopic plate 253. The lever 255 slides in the through hole 256 provided on the main baffle 251.

[0065] Specifically, the upper ends of both longitudinal ends of the mounting groove 24 are provided with lugs for rotating with the rotating shaft 252, thereby forming the main baffle 251 rotating in the mounting groove 24 via the rotating shaft 252. The middle part of the end of the main baffle 251 away from the rotating shaft 252 is provided with a middle groove for the telescopic plate 253 to slide and extend. The lever plate 255 is located in the through hole 256 to form a limit, so that the telescopic plate 253 can only slide and extend within the main baffle 251. The spring 254 pushes the telescopic plate 253 to move automatically away from the rotating shaft 252, thereby automatically putting the main baffle 251 and the telescopic plate 253 into the longest state.

[0066] In actual use, after the inner side plate 21 is fixed to the grate bed with bolts, the main baffle 251 is controlled to rotate via the rotating shaft 252. During the rotation, the telescopic plate 253 first contacts the side wall of the space groove 23 away from the installation groove 24. As the main baffle 251 continues to rotate, it will compress the telescopic plate 253, causing the telescopic plate 253 to slide into the main baffle 251 until the telescopic plate 253 is aligned with the slot 27. Under the influence of the elastic force of the spring 254, the telescopic plate 253 automatically moves from the main baffle 251. The telescopic plate 253 slides out into the slot 27 and is inserted into the card slot 27. At this time, the main baffle 251 presses against the shielding edge 26, thereby completing the shielding of the upper end of the space slot 23 by the baffle assembly 25 and locking this state. When it is necessary to open the space slot 23, push the lever 255 to slide in the through hole 256 towards the rotating shaft 252, so that the telescopic plate 253 can be retracted into the main baffle 251. Thus, the telescopic plate 253 slides out from the card slot 27, so that the main baffle 251 can be rotated through the rotating shaft 252 to open the space slot 23.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A longitudinal sealing device for a grate cooler, installed between two adjacent rows of grate beds, characterized in that, It includes an outer sealing element (1) and an inner sealing element (2). The outer sealing element (1) has a door-shaped cross-section and is fitted to one row of grate beds. The inner sealing element (2) has a U-shaped cross-section and is fitted to another row of grate beds. The side plate of the outer sealing element (1) away from the grate bed is inserted into the inner sealing element (2) from top to bottom, and an air duct gap is formed between the outer sealing element (1) and the inner sealing element (2). The air duct gap consists of two horizontal gaps and three vertical gaps. The upper end of the outer seal (1) extends horizontally with a horizontal protrusion (11) near the inner seal (2), and the horizontal protrusion (11) and the upper end of the inner seal (2) form another horizontal gap that communicates with the air duct gap.

2. The longitudinal sealing device for a grate cooler according to claim 1, characterized in that, The outer sealing element (1) has a fitting groove (13) on the outer sealing side plate (12) that fits the grate bed side.

3. The longitudinal sealing device for a grate cooler according to claim 2, characterized in that, The upper end of the outer dense side plate (12) is provided with a space groove (14).

4. The longitudinal sealing device for a grate cooler according to claim 2, characterized in that, The fitting groove (13) is fitted to the side of the grate bed and a limiting groove (15) is provided. A vertical adjustment mechanism (3) is installed in the limiting groove (15). The vertical adjustment mechanism (3) is fixed to the grate bed to adjust the width of the three horizontal gaps.

5. A longitudinal sealing device for a grate cooler according to claim 4, characterized in that, The vertical adjustment mechanism (3) includes a sliding plate (31), an L-shaped plate (32), and an adjusting bolt (33). The sliding plate (31) slides vertically in the limiting groove (15). The L-shaped plate (32) is fixed at the lower end of the sliding plate (31). The adjusting bolt (33) rotates on the L-shaped plate (32) and is threadedly connected to the lower end of the outer side plate (12).

6. A longitudinal sealing device for a grate cooler according to claim 5, characterized in that, A spring (34) is provided between the L-shaped plate (32) and the outer dense side plate (12).

7. A longitudinal sealing device for a grate cooler according to claim 1, characterized in that, The upper end of the outer seal (1) and the upper end face of the horizontal flange (11) are fitted and fixed with a wear-resistant plate (17) by a wear-resistant bolt (16). The wear-resistant bolt (16) passes through the wear-resistant plate (17) and is threadedly connected to the upper end of the outer seal (1).

8. The longitudinal sealing device for a grate cooler according to claim 1, characterized in that, The inner sealing element (2) has a fitting groove (22) on the inner sealing side plate (21) that fits the grate bed side.

9. A longitudinal sealing device for a grate cooler according to claim 8, characterized in that, The upper end of the inner sealing side plate (21) is provided with a space groove two (23), and the space groove two (23) is provided with an installation groove (24) near the outer sealing element (1). A baffle assembly (25) is rotatably installed in the installation groove (24). The other side of the space groove two (23) is provided with a shielding edge (26) and a slot (27) for limiting the baffle assembly (25).

10. A longitudinal sealing device for a grate cooler according to claim 9, characterized in that, The baffle assembly (25) includes a main baffle (251), a rotating shaft (252), a telescopic plate (253), a second spring (254), a lever plate (255), and a through hole (256). One end of the main baffle (251) is rotated in the upper end of the mounting groove (24) via the rotating shaft (252). The other end of the main baffle (251) is slidably connected to the telescopic plate (253). A second spring (254) is provided between the telescopic plate (253) and the main baffle (251). A lever plate (255) is provided at the upper end of the telescopic plate (253). The lever plate (255) slides in the through hole (256) provided on the main baffle (251).

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