A sealing structure of a grate cooler

Abstract

The present invention discloses a sealing structure of a grate cooler, which belongs to the technical field of cement machinery and equipment, and includes a plurality of sealing modules connected by a relative sliding mechanism, wherein the sealing module includes a segment beam, a grate plate, a material retaining plate, a relative sliding mechanism, an anti-wear and anti-leakage system and a vent valve, wherein the grate plate is installed above the segment beam, the material retaining plate is installed at the edge of the grate plate, the vent valve is installed at the bottom of the segment beam, the anti-wear and anti-leakage system is installed on the relative sliding mechanism, and the relative sliding mechanism includes a concave sealing plate, a convex sealing plate, an anti-wear block and an L-shaped plate, wherein the concave sealing plate, the convex sealing plate and the L-shaped plate are sequentially sleeved together from top to bottom, the concave sealing plate, the L-shaped plate and the convex sealing plate slide relative to each other, an anti-wear block is installed on one side of the concave sealing plate, and the anti-wear and anti-leakage system includes a wear-resistant plate and a wear-resistant gap adjustment plate. The present invention can effectively avoid the problem of equipment loss caused by the reverse friction between clinker and equipment, improve the sealing performance of the device, and can adjust the width and length according to demand.

Description

Technical Field

[0001] The invention belongs to the technical field of cement machinery and equipment, and in particular relates to a sealing structure of a grate cooler. Background Art

[0002] Grate cooler is an important main equipment in the clinker burning system of cement plant. Its main function is to cool and transport cement clinker. When in use, hot clinker is unloaded from the kiln mouth onto the grate plate. Under the push of the reciprocating grate plate, it is distributed along the entire length of the grate bed to form a material bed of a certain thickness. Cooling air is blown upward from the bottom of the material bed into the material layer to cool the hot clinker. Since the hot clinker is placed on the grate cooler, its sealing structure is very important for the grate cooler. However, the sealing structure of the traditional grate cooler only has one concave sealing plate and one L-shaped plate. When the grate plate transports the clinker, there will be relative reverse friction between the hot clinker and the concave sealing plate, and the friction area is large, which makes the concave sealing plate very easy to wear and has a short service life.

[0003] The document with application number 201310178115.5 discloses a material pushing device for a grate cooler, which includes a connecting piece and a plurality of parallel pushing rods arranged on the connecting piece, wherein the connecting piece and the pushing rod are combined to form a pushing rod in the shape of a fishbone rod. The device can reduce resistance and reduce the phenomenon of carrying materials. However, there will be a large sliding friction between the device and the hot clinker, and the friction area is large, which makes the device easy to wear and has a short life.

[0004] The document with application number 201822108153.4 discloses a material pushing device for a grate cooler, which includes a slide rail arranged on a grate plate at intervals, a cavity arranged in the slide rail, a chute arranged on the top surface of the cavity, and a material pushing mechanism. The device can quickly spread cement clinker in a short time to avoid accumulation. However, the disadvantage of the device is that it is very easy to wear out. When pushing cement clinker, the clinker and the device will have friction in the opposite direction of the movement, and the friction area is large, resulting in serious wear and tear of the device. Summary of the invention

[0005] The problem to be solved by the present invention is to provide a sealing structure of a grate cooler which can effectively avoid the problem of equipment loss caused by reverse friction between clinker and equipment, improve the sealing performance of the device, and can adjust the width and length according to needs.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a sealing structure of a grate cooler, including several sealing modules, the sealing modules include segment beams, grate plates, material baffles, relative sliding mechanisms, anti-wear and anti-leakage systems and ventilation valves, relative sliding mechanisms are installed on both sides of the segment beams, several grate plates are installed above the segment beams 1, the material baffles are installed between the grate plates and at the edge of the grate plates, the ventilation valve is installed at the bottom of the segment beams, and cooperates with the ventilation holes of the segment beams, the anti-wear and anti-leakage system is installed on the relative sliding mechanism, and the The relative sliding mechanism 4 includes a concave sealing plate, a convex sealing plate, an anti-wear block and an L-shaped plate. The concave sealing plate, the convex sealing plate and the L-shaped plate are sequentially sleeved together from top to bottom. The tail ends of the concave sealing plate and the L-shaped plate are stacked together and installed at the edge of the grate plate through a connecting piece. The concave sealing plate, the L-shaped plate and the convex sealing plate slide relatively. The concave sealing plate is equipped with an anti-wear block on the side facing the grate plate. The anti-wear and anti-leakage system includes a wear-resistant plate and a wear-resistant gap adjustment plate. The wear-resistant gap adjustment plate is installed on the outside of the convex sealing plate, and the wear-resistant plate is installed on the top of the concave sealing plate.

[0007] A baffle is installed on the segment beam, and the baffle divides the vent into a plurality of units. Angle steels are arranged on both sides of the baffle on the segment beam.

[0008] Each grate plate corresponds to each ventilation hole of the segment beam. The grate plate includes a base plate and a cover plate installed on the base plate. A ventilation channel is arranged between the base plate and the cover plate. Grate plate mounting holes are arranged at the four end corners of the base plate. The grate plate is connected and fixed to the angle steel through the grate plate mounting holes.

[0009] The concave sealing plate includes a concave sealing plate B and a concave sealing plate A, and the convex sealing plate includes a convex sealing plate B and a convex sealing plate A. The end of the concave sealing plate B is matched with the end of the concave sealing plate A, and the end of the convex sealing plate B is matched with the end of the convex sealing plate A.

[0010] The wear-resistant gap adjustment plate comprises a backing plate and an adjustment plate. An adjustable gap exists between the adjustment plate and the concave sealing plate, and an adjustable gap exists between the backing plate, the adjustment plate and the wear-resistant plate.

[0011] The grate plate is paved with crushed stones.

[0012] The wear-resistant plate is formed by surfacing or is a wear-resistant steel plate.

[0013] Four cover plates are arranged on each of the base plates.

[0014] The two sides and the front and back of the plurality of sealing structures are connected via a relative sliding mechanism to increase the width and length.

[0015] Due to the adoption of the above technical solution, (1) the concave sealing plate, convex sealing plate and L-shaped plate in the present invention are assembled together to form an isolation seal on both sides of each row, thereby enhancing the sealing performance of the grate cooler and preventing the material on the grate cooler from leaking. Although each row needs to move relative to each other, the clinker will not leak through the gap, which can effectively avoid the problem of material leakage. Even if the concave sealing plate is damaged by friction or a gap is generated, the hot clinker will not leak. At the same time, the coordination of the remaining devices makes the overall sealing good, and the hot clinker above the sealing structure of the grate cooler will not leak.

[0016] (2) The present invention forms a labyrinth seal system by adjusting the gaps between the wear-resistant plate, the backing plate, the adjustment plate and the concave sealing plate. The labyrinth seal structure effectively solves the problem of mechanical sealing. It can effectively prevent hot clinker or powdered material from being blown into the gap of the relative sliding system under the action of wind, thus avoiding the problem of blockage. At the same time, the present invention also has an anti-wear function, effectively avoiding friction loss to the equipment.

[0017] (3) The present invention optimizes the structure so that each segment beam is formed with a square box module array with the slats as the center, the baffle plates as the end plates, and the convex sealing plates and concave sealing plates on both sides forming an upper open square box module array. During operation, the inner bottom half of each box formed in each module is filled with gravel, and the hot clinker above will also fill the square box. During operation, the material in the box has no relative movement with the side of the box, and there is basically no friction. Only the upper edge of the box mouth has relative friction, which greatly reduces the contact friction area between the device and the hot clinker, effectively reduces the reverse friction on the concave sealing plate, greatly alleviates the problem of friction loss, and increases the service life of the equipment.

[0018] (4) The present invention reduces the height of dead material, increases the thickness of live material, avoids accumulation, and makes the ventilation system less likely to be blocked. In addition, the coordination of the bottom plate and the cover plate on the grate plate ensures good ventilation and cooling effect, reduces the power consumption of the fan, and improves work efficiency.

[0019] (5) The present invention reduces the friction area with the live material, downgrading the manufacturing material to a lower grade, while reducing the manufacturing cost and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with examples, and the advantages and implementation methods of the present invention will become more obvious. The contents shown in the accompanying drawings are only used to explain the present invention and do not constitute any limitation to the present invention in any sense. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of the sealing module of the present invention.

[0022] Figure 2 It is a cross-sectional view of the sealing module of the present invention.

[0023] Figure 3 It is a side view of several sealing modules of the present invention after being connected.

[0024] Figure 4 It is an enlarged view of point A of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the segment beam of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the grate plate of the present invention.

[0027] Figure 7 It is a structural schematic diagram of the material baffle plate of the present invention.

[0028] Figure 8 It is a schematic structural diagram of the convex sealing plate A of the present invention.

[0029] Fig. 9 It is a schematic structural diagram of the convex sealing plate B of the present invention.

[0030] Fig.10 It is a schematic structural diagram of the concave sealing plate A of the present invention.

[0031] Fig.11 It is a schematic structural diagram of the concave sealing plate B of the present invention.

[0032] Fig.12 It is a schematic structural diagram of the L-shaped plate of the present invention.

[0033] In the figure:

[0034] 1. Segment beam; 2. Grate plate; 3. Baffle plate; 4. Relative sliding mechanism; 5. Anti-wear and anti-leakage system; 6. Ventilation valve; 1-1. Baffle plate; 1-2. Ventilation port; 1-3. Angle steel; 2-1. Bottom plate; 2-2. Cover plate; 2-3. Grate plate mounting hole; 2-4. Ventilation channel; 3-1. First baffle plate mounting hole; 3-2. Second baffle plate mounting hole; 4-1. Concave sealing plate B; 4-2. Convex sealing plate B; 4-3. Anti-wear block; 4-4. Concave sealing plate A; 4-5. Convex sealing plate A; 4-6. L Type plate; 5-1, wear-resistant plate; 5-2, pad; 5-3, adjustment plate; 4-1-1, first concave sealing plate B mounting hole; 4-1-2, second concave sealing plate B mounting hole; 4-2-1, first convex sealing plate B mounting hole; 4-2-2, second convex sealing plate B mounting hole; 4-4-1, first concave sealing plate A mounting hole; 4-4-2, second concave sealing plate A mounting hole; 4-5-1, first convex sealing plate A mounting hole; 4-5-2, second convex sealing plate A mounting hole; 4-6-1, L-shaped plate mounting hole. DETAILED DESCRIPTION

[0035] like Figures 1 to 12As shown, the sealing structure of a grate cooler of the present invention greatly reduces the contact friction area between the device and the hot clinker through structural optimization, reduces the reverse friction against the concave sealing plate, alleviates the problem of friction loss to a great extent, and also improves the sealing performance of the equipment.

[0036] The present invention can increase the width and length of the equipment as needed. Increasing the number of sealing modules in the horizontal direction increases the width of the equipment, and increasing the number of sealing modules in each row in the vertical direction increases the length of the equipment. Each sealing module includes a segment beam 1, a grate plate 2, a material baffle plate 3, a relative sliding mechanism 4, an anti-wear and anti-leakage system 5 and a vent valve 6, wherein the segment beam 1 includes a baffle plate 1-1, a vent 1-2 and an angle steel 1-3, the grate plate 2 includes a bottom plate 2-1 and a cover plate 2-2, the relative sliding mechanism 4 includes a concave sealing plate B4-1, a convex sealing plate B4-2, an anti-wear block 4-3, a concave sealing plate A4-4, a convex sealing plate A4-5 and an L-shaped plate 4-6, and the anti-wear and anti-leakage system 5 includes a wear-resistant plate 5-1, a pad 5-2 and an adjustment plate 5-3.

[0037] The present invention is designed in a row-by-row manner, and the number of transverse rows can be increased as needed; each row is composed of sealing modules, and the number of sealing modules in each row can be increased as needed; each row is connected by a relative sliding mechanism 4 and can slide relative to each other, such as Figure 1 and Figure 3 As shown ( Figure 1 A sealed module; Figure 3 (four of the selected rows are arranged from left to right as the first row to the fourth row) in each sealing module, the vent valve 6 cooperates with the vent 1-2 on the segment beam 1 and is installed under the segment beam 1. The baffle 1-1 on the segment beam 1 divides the vent 1-2 into different units, and the segment beam 1 is provided with angle steel 1-3 for fixing and connecting with other devices; the grate plate 2 is installed above the segment beam 1, and each grate plate 2 corresponds to each unit of the segment beam 1. The four grate plate mounting holes 2-3 on the grate plate 2 correspond to the holes on the four angle steels 1-3 of each unit on the segment beam 1, and are connected and reinforced; the grate plate 2 includes a bottom plate 2-1 and a cover plate 2-2, and four cover plates 2-2 are installed on each bottom plate 2-1, and a vent channel 2-4 is left between the bottom plate 2-1 and each cover plate 2-2.

[0038] The relative sliding mechanism 4 is installed on both sides of each row and connects each row of devices. For the convenience of coordination, the relative sliding mechanism 4 is arranged into structure A and structure B. After each structure is installed, it can be coordinated and connected with each other. Structure A includes a concave sealing plate A4-4, a convex sealing plate A4-5 and an L-shaped plate 4-6, wherein the concave sealing plate A4-4 and the L-shaped plate 4-6 are connected with the L-shaped plate mounting hole 4-6-1 through the second concave sealing plate A mounting hole 4-4-2, and are assembled and fixed with the grate plate mounting hole 2-3 and the hole on the angle steel 1-3. The convex sealing plate A4-5 is sleeved between the concave sealing plate A4-4 and the L-shaped plate 4-6. They are not connected to each other and do not interfere with each other. At the same time, the second convex sealing plate A mounting hole 4-5-2 is assembled and fixed on the grate plate 2 of the laterally adjacent module, that is, it is coordinated and fixed with the grate plate mounting hole 2-3 on the adjacent row of grate plates 2. Similarly, the assembly principle of structure B is the same as that of structure A. The concave sealing plate B4-1 and the L-shaped plate 4-6 are matched through the second concave sealing plate B mounting hole 4-1-2 and the second convex sealing plate B mounting hole 4-2-2. The convex sealing plate B4-2 is sleeved between the concave sealing plate B4-1 and the L-shaped plate 4-6 without interference, and is respectively installed in the grate plate mounting holes 2-3 on the grate plates 2 of the transversely adjacent modules. After the structures A and B are assembled separately, they are assembled again; by increasing the number of structures A and B in each row and their matching in the relative sliding mechanism 4, the number of modules in each row can be increased, thereby increasing the length of the equipment; at the same time, the structures A and B can connect the transversely adjacent modules, and the number of transversely parallel modules can be increased through the relative sliding mechanism 4, thereby increasing the width of the equipment. In this way, the width of the equipment and the length of each row can be increased according to different needs, that is, through the cooperation of the above-mentioned relative sliding mechanism 4 and the two adjacent rows of grate plates 2, each row can be connected, and the reciprocating cooperation of structure A and structure B can be added to each row to increase the number of sealing modules in each row, thereby increasing the length; at the same time, the design and cooperation of the concave sealing plate A4-4, the convex sealing plate A4-5, the concave sealing plate B4-1, the convex sealing plate B4-2 and the L-shaped plate 4-6 reduce the friction area between the grate plate 2 and the hot clinker, and there is only friction between the hot clinker and the arc-shaped parts on the concave sealing plate A4-4 and the concave sealing plate B4-1.

[0039] At the same time, in the present invention, in order to reduce the friction loss of the arc-shaped part, the arc-shaped part on the concave sealing plate A4-4 and the concave sealing plate B4-1 is installed with a wear-resistant plate 5-1, and the wear-resistant plate 5-1 can be solved by surfacing or adding another layer of wear-resistant steel plate; at the same time, this combination also enhances the sealing performance of the equipment. Although there is relative movement between each row, the hot clinker will not leak through the gap. Even if the concave sealing plate A4-4 or the concave sealing plate B4-1 is damaged by friction or a gap is generated, the hot clinker will not leak down. At the same time, the wear-resistant plate 5-1, the wear-resistant gap adjustment plate and the concave sealing plate form a labyrinth leak-proof system through the adjustment of the gap, which can prevent the hot clinker or powdered material from entering the gap of the relative sliding mechanism 4 under the action of wind, and avoid the occurrence of blockage problems. An anti-wear block 4-3 is installed on one side of the concave sealing plate on structure A and structure B, and the anti-wear block 4-3 cooperates with the first concave sealing plate B mounting hole 4-1-1 and the first concave sealing plate A mounting hole 4-4-1 to reduce the friction damage to the relative sliding mechanism 4. At the same time, a wear-resistant gap adjustment plate is installed on one side of the convex sealing plate on structure A and structure B, wherein the adjustment plate 5-3 cooperates with the backing plate 5-2 and cooperates with the first convex sealing plate B mounting hole 4-2-1 and the first convex sealing plate A mounting hole 4-5-1. There is a certain gap between the adjustment plate 5-3 and the concave sealing plate, and there is also a certain gap between the backing plate and the wear-resistant plate 5-1, but the two gaps are not in a straight line. In this way, by adjusting the gaps between the wear-resistant plate 5-1, the backing plate 5-2, the adjustment plate 5-3, the concave sealing plate A4-4, and the concave sealing plate B4-1, a labyrinth-like anti-leakage system is formed (see Figure 4 (Partial enlargement), this method effectively prevents hot clinker or powdery materials from entering the gap of the relative sliding structure 4 under the action of wind, and prevents the relative sliding structure 4 from being blocked. At the same time, the baffle plate 3 is installed between each grate plate 2, and the first baffle plate mounting hole 3-1 on the baffle plate 3 is matched and fixed with the hole on the baffle plate 1-1 on the segment beam 1. At the same time, the second baffle plate mounting hole 3-2 on the baffle plate 3 is connected and fixed with the first concave sealing plate A mounting hole 4-4-1 on the concave sealing plate A on one side and the first convex sealing plate A mounting hole 4-5-1 on the convex sealing plate A4-5 on the other side. Similarly, it is also matched and installed with the first concave sealing plate B mounting hole 4-1-1 and the first convex sealing plate B mounting hole 4-2-1 in the above manner. At this point, an arrangement matrix of square box modules with an upper opening is formed on each segment beam 1, with the grate plate 2 as the center, the baffle plate 3 as the two end plates, and the relative sliding mechanism 4 on both sides. During operation, the bottom half of each box in each sealed module is filled with gravel, and the hot clinker above will also fill the square box. During operation, the material in the box has no relative movement with the side of the box, and there is basically no friction, only the upper edge of the box mouth has relative friction.

[0040] The present invention can realize the functions of feeding and cooling. In order to increase air permeability and better ensure the cooling effect, some crushed stones are laid on the grate plate 2, and the clinker is placed on the device and the crushed stones.

[0041] For the conveying function, each row is aligned and then transported forward by the power device. After each row advances a certain distance, the non-adjacent rows are quickly withdrawn a certain distance. Figure 3 The following is a partial side view diagram. First, each row advances a certain distance, and then the odd-numbered rows (e.g. Figure 3 The first and third rows in the middle are quickly withdrawn a certain distance. When withdrawing, the convex sealing plate A4-5 (convex sealing plate B4-2) on the left side of each row slides between the concave sealing plate A4-4 (concave sealing plate B4-1) and the L-shaped plate 4-6, and the concave sealing plate A4-4 (concave sealing plate B4-1) and the L-shaped plate 4-6 on the right side of each row slide around the convex sealing plate A4-5 (convex sealing plate B4-2), and drive the segment beam 1, the grate plate 2, the material retaining plate 3, and the vent valve 6 to withdraw. Due to the rapid withdrawal, the clinker above will be spread out and will not retreat with the withdrawal of the device. When the odd-numbered rows are withdrawn, the even-numbered rows (for example Figure 3 The second and fourth rows in the grate bed) are then quickly withdrawn, and the principle of the withdrawal method of the even-numbered rows is the same as above. When the odd-numbered rows and the even-numbered rows are withdrawn, they enter the next cycle again, so that the feeding function can be realized. In this way, the hot clinker can be quickly and evenly flattened to avoid accumulation. In this way, the hot clinker is distributed along the entire length of the grate bed and forms a material bed of a certain thickness. When the odd-numbered rows and the even-numbered rows are withdrawn, the relative sliding mechanism 4 of the two adjacent rows will produce relative sliding. Due to the design and cooperation of the concave sealing plate, the convex sealing plate and the L-shaped plate 4-6 in the device, the friction of the concave sealing plate and the convex sealing plate is effectively reduced, the problem of friction loss is greatly reduced, and the service life of the equipment is increased. At the same time, the cooperation also enhances the sealing of the equipment. Although each row needs to move relative to each other, the clinker will not leak through the gap, which can well avoid the problem of leakage. Even if the concave sealing plate is damaged by friction or a gap is generated, the hot clinker will not leak. At the same time, a labyrinth leak-proof system is formed by adjusting the gaps between the wear-resistant plate, the wear-resistant gap adjustment plate and the concave sealing plate, which can prevent hot clinker or powdered material from entering the gaps of the relative sliding system under the action of wind and avoid blockage problems.

[0042] The cooling function of the present invention is realized by the ventilation valve 6, the ventilation port 1-2 and the ventilation channel 2-4. The cooling air enters each unit of the segment beam 1 through the ventilation valve 6 and the ventilation port 1-2. The cooling air of each unit then enters the top of the grate plate 2 through the ventilation channel 2-4 on the grate plate 2, so that the cooling air is blown upward from the bottom of the material bed into the material layer. The cooling function of the clinker is realized through this process. A layer of stones is laid on the grate plate 2, which effectively enhances its ventilation, better realizes the purpose of cooling, and cools evenly.

[0043] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A sealing structure of a grate cooler, Features: The invention comprises a plurality of sealing modules, wherein the sealing modules comprise a segment beam, a grate plate, a material baffle plate, a relative sliding mechanism, an anti-wear and anti-leakage system and a vent valve. Relative sliding mechanisms are installed on both sides of the segment beam. Several grate plates are installed above the segment beam. The material baffle plate is installed between the grate plates and at the edge of the grate plates. The vent valve is installed at the bottom of the segment beam and cooperates with the vent of the segment beam. The anti-wear and anti-leakage system is installed on the relative sliding mechanism. The relative sliding mechanism comprises a concave sealing plate, a convex sealing plate, an anti-wear block and an L-shaped plate. The concave sealing plate, the convex sealing plate and the L-shaped plate are sequentially sleeved together from top to bottom. The tail ends of the concave sealing plate and the L-shaped plate are stacked together and installed at the edge of the grate plate through a connecting piece. The concave sealing plate, the L-shaped plate and the convex sealing plate slide relatively. A wear-resistant block is installed on the side of the sealing plate facing the grate plate, and the wear-resistant and leakage-proof system includes a wear-resistant plate and a wear-resistant gap adjustment plate, wherein the wear-resistant gap adjustment plate is installed on the outer side of the convex sealing plate, and the wear-resistant plate is installed on the top of the concave sealing plate, and the wear-resistant gap adjustment plate includes a pad and an adjustment plate, and an adjustable gap exists between the adjustment plate and the concave sealing plate, and an adjustable gap exists between the pad, the adjustment plate and the wear-resistant plate; a baffle is installed on the segment beam, and the baffle divides the vent into several units, and angle steels are arranged on both sides of the baffle on the segment beam; the concave sealing plate includes a concave sealing plate B and a concave sealing plate A, and the convex sealing plate includes a convex sealing plate B and a convex sealing plate A, and the end of the concave sealing plate B is matched with the end of the concave sealing plate A, and the end of the convex sealing plate B is matched with the end of the convex sealing plate A.

2. The sealing structure of the grate cooler according to claim 1, Features: Each grate plate corresponds to each ventilation hole of the segment beam. The grate plate includes a base plate and a cover plate installed on the base plate. A ventilation channel is arranged between the base plate and the cover plate. Grate plate mounting holes are arranged at the four end corners of the base plate. The grate plate is connected and fixed to the angle steel through the grate plate mounting holes.

3. The sealing structure of the grate cooler according to claim 1, Features: The grate plate is paved with crushed stones.

4. The sealing structure of the grate cooler according to claim 1, Features: The wear-resistant plate is formed by surfacing or is a wear-resistant steel plate.

5. The sealing structure of the grate cooler according to claim 2, Features: Four cover plates are arranged on each of the base plates.

6. The sealing structure of the grate cooler according to claim 1, Features: The two sides and the front and back of the plurality of sealing structures are connected via a relative sliding mechanism to increase the width and length.

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