Boiler shaft flue wear plate

Abstract

The utility model relates to the technical field of anti-abrasion tiles, and concretely provides a boiler shaft flue anti-abrasion tile, which comprises a bottom plate, a plurality of bottom plates are arranged along the inner wall of the flue, and the edges of adjacent bottom plates are attached; a tile is arranged on one side of the bottom plate away from the inner wall of the flue and has a W shape; a mounting bolt is threadedly connected to the bottom plate through one end of the tile; the bottom plate comprises a plate body, at least two groups of expansion slots are arranged on the surface of the plate body, the expansion slots are arranged on one side of the plate body close to the tile, and the two groups of expansion slots are respectively arranged on the two sides of the surface of the plate body close to the edge; wherein the tile is clamped in the expansion slots on the two sides; and the tile and the bottom plate are filled with a ceramic fiber blanket, the anti-abrasion tile can be quickly replaced through the above structure design, the service life of the anti-abrasion tile is prolonged, and the replacement cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wear-resistant tile technology, specifically providing a wear-resistant tile for boiler vertical flue. Background Technology

[0002] In boiler operating systems, vertical flue ducts are an important component. Currently, wear-resistant tiles are widely used in boiler vertical flue ducts to protect the duct walls and reduce the erosion and wear caused by particulate-containing airflow.

[0003] Most existing boiler vertical flue gas duct wear-resistant tiles adopt a flat design and are fixed inside the flue by welding. However, in actual operation, the airflow containing particles will continuously and for a long time scour the wear-resistant tiles. Due to the impact and friction of particles in the airflow, the wear of the wear-resistant tiles is very serious.

[0004] When the wear-resistant tiles wear down to a certain extent and need to be replaced, many problems arise. Because the wear-resistant tiles are welded quite firmly, the disassembly process is extremely inconvenient. It not only requires a lot of manpower and time, but also easily damages the flue wall. This directly leads to a significant extension of the maintenance cycle, increases boiler downtime, and affects normal production operations.

[0005] Furthermore, existing wear-resistant tiles are mostly integrated designs, which limit their function to a single purpose: wear protection, failing to meet more diverse needs. Moreover, once the tiles show wear, the entire unit needs to be replaced, incurring high replacement costs and placing a significant economic burden on businesses. Therefore, there is an urgent need to develop a new type of wear-resistant tile for boiler vertical flue ducts to solve these problems. Utility Model Content

[0006] To address the issue of wear-resistant tiles in boiler vertical flues being prone to wear and the inconvenience of replacing them due to their welded connection method, this invention provides a new type of wear-resistant tile for boiler vertical flues. This new tile enables rapid replacement, extends the service life of the wear-resistant tile, and reduces replacement costs.

[0007] According to one aspect of this utility model, a wear-resistant tile for boiler vertical flue is provided, comprising: a base plate, wherein multiple base plates are arranged along the inner wall of the flue and the edges of adjacent base plates are abutted; a tile, which is W-shaped and is disposed on the side of the base plate away from the inner wall of the flue; and a mounting bolt, one end of which passes through the tile and is threadedly connected to the base plate; the base plate comprises: a plate body, wherein the surface of the plate body is provided with at least two sets of expansion grooves, the expansion grooves are disposed on the side of the plate body near the tile, and the two sets of expansion grooves are respectively disposed on both sides of the plate body surface near the edge; wherein the two sides of the tile are engaged in the expansion grooves; and a ceramic fiber blanket is filled between the tile and the base plate.

[0008] In some embodiments, a through hole is provided at the center of the plate surface; the base plate further includes:

[0009] A welding plate is disposed within a through hole, and the welding plate is coplanar with the plate body, with a gap between the welding plate and the through hole; connecting blocks are spaced apart between the welding plate and the inner wall of the through hole in the circumferential direction; an auxiliary ring is disposed on the side of the welding plate away from the inner wall of the flue; wherein the auxiliary ring is disposed along the edge of the welding plate.

[0010] In some embodiments, a plurality of mounting bolts are provided, and the plurality of mounting bolts are arranged linearly at intervals in the groove of the tile; the mounting bolt includes: a connecting platform, provided on the surface of the plate; a threaded hole, provided on the side of the connecting platform near the tile; a countersunk hole, provided in the groove on the surface of the tile; and a bolt body, the bolt body having a threaded end connected to the inner wall of the threaded hole, and the head being provided in the countersunk hole.

[0011] In some embodiments, the mounting bolt further includes: a sleeve, one end of which abuts against the surface of the connecting platform; and a notch located at the end of the sleeve near the tile; wherein the end of the sleeve near the notch abuts against the surface of the tile.

[0012] In some embodiments, strip-shaped protrusions are provided on both sides of the plate, and the outer wall of the strip-shaped protrusions is flush with the side wall of the plate; expansion grooves are provided on the adjacent surfaces of the two sets of strip-shaped protrusions; wherein the expansion grooves are provided along the extension direction of the strip-shaped protrusions; a limiting strip is provided on the side of the strip-shaped protrusions near the plate, the limiting strip is provided along the length direction of the strip-shaped protrusions, and the limiting strip is parallel to and spaced apart from the strip-shaped protrusions; both ends of the tile are located between the expansion grooves and the limiting strips.

[0013] In some embodiments, the tile includes: a W-shaped sheet body, the sheet body being composed of two V-shaped plates; the openings of the two V-shaped plates are oriented toward the sheet body.

[0014] In some embodiments, a stainless steel guard plate is provided on the side of the W-shaped plate body away from the plate body, and the stainless steel guard plate is provided at the connection between the two V-shaped plates; a mounting groove is provided on the adjacent side of the two V-shaped plates, and the mounting groove is provided along the length direction of the plate body; wherein the stainless steel guard plate is engaged in the mounting groove.

[0015] In some embodiments, the tile further includes: L strips, provided in two sets, the two sets of L strips are respectively provided on both sides of the plate body, the two sets of L strips are provided close to the plate body, the openings of the two sets of L strips face to both sides, and the two sets of L strips are respectively provided in the expansion groove.

[0016] The embodiments of this utility model have the following advantages.

[0017] When installing wear-resistant tiles in a vertical flue, first, evenly distribute the base plate on the inner wall of the flue. During installation, weld the outer perimeter of the base plate to the inner wall of the flue. After welding, install the W-shaped tiles one by one onto the base plate. When installing the tiles, place one side of the tile into the expansion groove on one side, then slightly bend the other side of the tile towards the base plate, and place it into the expansion groove on the other side. Next, fill the space between the tile and the base plate with ceramic fiber blanket. Finally, use mounting bolts to fix the tile to the surface of the base plate. When the tiles are subjected to high-speed, dusty flue gas for a long time, causing wear on the windward side, the tiles can be removed by disassembling the mounting bolts, and the filling ceramic fiber blanket can be replaced. This allows for quick maintenance of the wear-resistant tiles; only the worn tiles need to be replaced, reducing the replacement cost. Disassembling worn W-shaped tiles and replacing ceramic fiber blankets requires no overall dismantling or welding, shortening downtime. The ceramic fiber blanket boasts high compression resilience and heat resistance, buffering airflow impact and absorbing airflow vibration energy, reducing fatigue damage to the tiles and base plate, extending overall lifespan, and preventing high-speed flue gas carrying particles from seeping into the base plate and flue wall, thus reducing the risk of flue corrosion. The expansion grooves on the plate allow for slight displacement of the tiles when heated, preventing cracking or bolt loosening caused by thermal stress concentration. Simultaneously, the ceramic fiber blanket continuously buffers the impact of pulsating airflow, preventing hard contact between the tiles and base plate, and can withstand flue gas temperatures of 600–1000℃ for extended periods, reducing the risk of pulverization or embrittlement. Furthermore, its flexibility allows for cutting, eliminating the need for precision machining during filling, adapting to different shaped expansion grooves, and facilitating easy replacement. The interwoven fiber structure effectively blocks dust penetration.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the anti-wear tile structure according to one embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the base plate structure of one embodiment of the present utility model.

[0023] Figure 3 Show Figure 2 A magnified view of region A in the middle.

[0024] Figure 4 This is a schematic diagram of a tile structure according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the mounting bolt installation according to one embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the mounting bolt structure according to one embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the installation of L strips according to an embodiment of the present invention.

[0028] Figure Labels

[0029] 100-Base Plate;

[0030] 110 - Plate body; 120 - Expansion groove; 130 - Through hole; 140 - Welding plate; 150 - Connecting block; 160 - Auxiliary ring; 170 - Strip protrusion; 180 - Limiting strip;

[0031] 200-tiles;

[0032] 210 - Sheet metal body; 220 - Stainless steel guard plate; 230 - Mounting groove; 240 - L-shaped strip;

[0033] 300 - Mounting bolts;

[0034] 310 - Connecting platform; 320 - Threaded hole; 330 - Countersunk hole; 340 - Bolt body; 350 - Sleeve; 360 - Cutout. Detailed Implementation

[0035] To make the objectives, solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] As described above, in the traditional replacement of anti-wear tiles in flue shafts, because the anti-wear tiles are welded inside the flue, they are difficult to completely remove and replace after long-term use due to wear, which increases the replacement cost and limits the service life of the anti-wear tiles.

[0038] To at least partially solve one or more of the above-mentioned problems and other potential problems, an exemplary embodiment of this utility model provides a boiler vertical flue anti-wear tile, which includes: a base plate 100, a plurality of base plates 100 arranged along the inner wall of the flue, with the edges of adjacent base plates 100 abutting; a tile 200, W-shaped, disposed on the side of the base plate 100 away from the inner wall of the flue; and a mounting bolt 300, one end of which passes through the tile 200 and is threadedly connected to the base plate 100; the base plate 100 includes: a plate body 110, the surface of the plate body 110 having at least two sets of expansion grooves 120, the expansion grooves 120 being disposed on the side of the plate body 110 near the tile 200, and the two sets of expansion grooves 120 being respectively disposed on both sides of the surface of the plate body 110 near the edge; wherein the tile 200 is engaged in the expansion grooves 120 on both sides; and a ceramic fiber blanket is filled between the tile 200 and the base plate 100.

[0039] In the above embodiments, when installing anti-wear tiles in the vertical flue, the base plate 100 is first evenly distributed on the inner wall of the flue. When installing the base plate 100, the outer periphery of the base plate 100 is welded to the inner wall of the flue. After the plate 110 is welded, the W-shaped tiles 200 are installed one by one on the base plate 100. When installing the tiles 200, one side of the tile 200 is placed in the expansion groove 120 on one side, and then the other side of the tile 200 is slightly bent towards the base plate 100. The tile 200 is placed in the expansion groove 120 on the other side. Then, a ceramic fiber blanket is filled between the tile 200 and the plate 110. Finally, the tile 200 is fixed to the surface of the plate 110 using mounting bolts 300. When the tile 200 is subjected to high-speed dust-laden fumes for a long time, causing wear on the windward side, the tile 200 can be removed by disassembling the mounting bolts 300, and the filling ceramic fiber blanket can be replaced. This allows for quick maintenance of the wear-resistant tile; only the worn surface needs to be replaced. The worn tile 200 can be replaced, reducing the replacement cost of the anti-wear tile. Only the worn W-shaped tile 200 needs to be removed and the ceramic fiber blanket replaced, without the need for overall dismantling or welding, thus shortening downtime. At the same time, the ceramic fiber blanket has a high compression resilience and heat resistance, which can buffer the impact of airflow and absorb the vibration energy of airflow, reducing fatigue damage between the tile 200 and the base plate 100, extending the overall service life, and preventing high-speed flue gas carrying particles from seeping into the space between the base plate 100 and the flue wall, reducing the risk of corrosion of the flue body. The expansion groove 120 on the plate 110 allows the tile 200 to move slightly when it expands due to heat, avoiding cracking or loosening of bolts caused by thermal stress concentration. At the same time, the ceramic fiber blanket continuously buffers the impact of airflow pulsation, avoiding hard contact between the tile 200 and the base plate 100, and can withstand flue gas temperatures of 600-1000℃ for a long time, reducing the risk of pulverization or embrittlement. Moreover, it is flexible and can be cut, requiring no precision machining during filling, adapting to different shapes of expansion grooves 120, and is easy to replace. The interwoven fiber structure effectively blocks dust penetration.

[0040] Please see Figures 1-7 In some embodiments, a through hole 130 is provided at the center of the surface of the plate 110; the base plate 100 further includes: a welding plate 140 disposed in the through hole 130, the welding plate 140 being coplanar with the plate 110 and having a gap between the welding plate 140 and the through hole 130; a connecting block 150 disposed at intervals between the welding plate 140 and the inner wall of the through hole 130 in the circumferential direction; and an auxiliary ring 160 disposed on the side of the welding plate 140 away from the inner wall of the flue; wherein the auxiliary ring 160 is disposed along the edge of the welding plate 140.

[0041] In the above embodiments, to improve the welding strength between the base plate 100 and the inner wall of the flue, after the welding of the outer periphery of the base plate 100 is completed, the welding torch of the argon arc welding is placed on one side of the auxiliary ring 160. The electrode of the welding torch is located in the gap between the welding plate 140 and the through hole 130. The welding wire is placed in the gap and moves synchronously with the welding torch. The auxiliary ring 160 provides sliding auxiliary guidance for the welding torch, improving the neatness of the welding path. The gap provides a molten pool for argon arc welding. The welding wire melts in the molten pool to form a liquid metal area. After the molten pool cools, the liquid metal solidifies to form a permanent connection structure. Then, the welding efficiency of argon arc welding is improved by the auxiliary blocks. The auxiliary ring 160 forces the welding torch to move along the set path, resulting in a small weld straightness error. A continuous full penetration weld is formed in the gap, improving the tensile strength of the base plate 100. The connecting blocks 150 are distributed at intervals to disperse the welding thermal stress, prevent the welding plate 140 from deforming, and improve the guiding welding speed. There is no need to repeatedly calibrate the path, and the weld is formed in one go without rework.

[0042] Please see Figures 1-7 In some embodiments, multiple mounting bolts 300 are provided, and the multiple mounting bolts 300 are arranged linearly at intervals in the groove of the tile 200. The mounting bolt 300 includes: a connecting platform 310, which is provided on the surface of the plate 110; a threaded hole 320, which is provided on the side of the connecting platform 310 near the tile 200; a countersunk hole 330, which is provided in the groove on the surface of the tile 200; and a bolt body 340, the screw end of the bolt body 340 being threaded to the inner wall of the threaded hole 320, and the head being provided in the countersunk hole 330.

[0043] In the above embodiment, after filling the space between the tile 200 and the plate 110 with ceramic fiber blanket, the bolt body 340 is passed through the countersunk hole 330 and placed in the threaded hole 320 of the connecting platform 310. The head of the bolt body 340 is provided with an internal hexagonal hole. By tightening the bolt body 340 with an internal hexagonal wrench, the bolt body 340 is gradually tightened in the threaded hole 320. The tile 200 is continuously pushed towards the plate 110 by the head of the bolt body 340, so that the tile 200 continuously squeezes the filled ceramic fiber blanket, improving the compactness of the ceramic fiber blanket filling. The linearly arranged mounting bolts 300 can improve the installation strength and prevent the tile 200 from being blown by frequent high-speed airflow, which would cause the mounting bolts 300 to vibrate and fail. The expansion groove 120 can limit the two sides of the tile 200 after the mounting bolts 300 completely fail, preventing the tile 200 from falling directly into the flue.

[0044] Please see Figures 1-7 In some embodiments, the mounting bolt 300 further includes: a sleeve 350, one end of which abuts against the surface of the connecting platform 310; and a notch 360 located at one end of the sleeve 350 near the tile 200; wherein the end of the sleeve 350 near the notch 360 abuts against the surface of the tile 200.

[0045] In the above embodiments, the main function of the sleeve 350 is to limit the installation position of the tile 200. When installing the bolt 300 body, in order to ensure that the installation height of each tile 200 is uniform, and to prevent the airflow from passing under the protruding tile 200 when passing over the surface of the tile 200, the flatness of the tile 200 installation can be improved. It can also reduce the problem of high friction and accelerated wear caused by the airflow on the protruding part of the tile 200 due to the partial protrusion of the tile 200. At the same time, after installing the ceramic fiber blanket, the sleeve 350 can also prevent the bolt body 340 from rolling the ceramic fiber blanket into the threaded hole 320 when tightening the bolt body 340, which would make it difficult to disassemble the bolt body 340 later.

[0046] Please see Figures 1-7 In some embodiments, strip-shaped protrusions 170 are provided on both sides of the plate 110, and the outer wall of the strip-shaped protrusions 170 is flush with the side wall of the plate 110; expansion grooves 120 are provided on the adjacent surfaces of the two sets of strip-shaped protrusions 170; wherein the expansion grooves 120 are provided along the extension direction of the strip-shaped protrusions 170; a limiting strip 180 is provided on the side of the strip-shaped protrusions 170 near the plate 110, the limiting strip 180 is provided along the length direction of the strip-shaped protrusions 170, and the limiting strip 180 is parallel to and spaced apart from the strip-shaped protrusions 170; the two ends of the tile 200 are located between the expansion grooves 120 and the limiting strips 180.

[0047] In the above embodiment, the expansion groove 120 is formed on the strip protrusion 170. One end of the tile 200 slides between the expansion groove 120 and the limiting strip 180. When the high-temperature airflow blows towards the tile 200, the temperature of the tile 200 increases, resulting in increased local thermal stress and causing slight deformation of the tile 200. After the tile 200 deforms, it expands in all directions, causing the end wall of the tile 200 to slide in the expansion groove 120. When the boiler stops, the temperature in the flue drops, causing the tile 200 to gradually cool and shrink slightly. The limiting strip 180 is used to limit the shrinkage of the tile 200, thereby preventing the end wall of the tile 200 from coming out of the expansion groove 120 due to the low temperature of the tile 200. When the tile 200 expands due to the high temperature, it cannot enter the expansion groove 120 for limiting, causing some airflow to enter the gap between the tile 200 and the expansion groove 120.

[0048] Please see Figures 1-7 In some embodiments, the tile 200 includes a W-shaped plate body 210, which is composed of two V-shaped plates; the openings of the two V-shaped plates are oriented toward the plate body 110.

[0049] In the above embodiment, the W-shaped plate body 210 is composed of two V-shaped plates. The two V-shaped plates are used to install bolts 300, and after passing through the sleeve 350, they are threadedly connected to the threaded hole 320 on the connecting platform 310. The two sides of the two V-shaped plates extend into the limiting groove for sliding limitation.

[0050] Please see Figures 1-7 In some embodiments, a stainless steel guard plate 220 is provided on the side of the W-shaped plate body 210 away from the plate body 110, and the stainless steel guard plate 220 is provided at the connection between the two V-shaped plates; a mounting groove 230 is provided on the adjacent side of the two V-shaped plates, and the mounting groove 230 is provided along the length direction of the plate body 210; wherein the stainless steel guard plate 220 is engaged in the mounting groove 230.

[0051] In the above embodiment, after the mounting bolts 300 are installed, the stainless steel guard plate 220 is inserted from one end of the mounting groove 230. This prevents the high-speed airflow from directly contacting the mounting bolts 300 when it passes through the groove between the two V-shaped plates during equipment operation. This avoids wear on the head of the mounting bolts 300, which would cause the mounting bolts 300 to malfunction.

[0052] Please see Figures 1-7 In some embodiments, the tile 200 further includes: L strips 240, which are provided in two sets. The two sets of L strips 240 are respectively provided on both sides of the plate body 210. The two sets of L strips 240 are provided close to the plate body 110. The openings of the two sets of L strips 240 face to both sides. The two sets of L strips are respectively provided in the expansion groove 120.

[0053] In the above embodiment, the L strip 240 is used for the two ends of the W-shaped plate body 210 to slide within the expansion groove 120, and the L strip 240 within the expansion groove 120 is used for sliding limit.

[0054] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

[0055] The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the various embodiments, or to enable those skilled in the art to understand the embodiments disclosed herein.

[0056] The above are merely optional embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A boiler leg flue anti-abrasion tile characterized by, include: A base plate (100), a plurality of said base plates (100) are arranged along the inner wall of the flue, and the edges of adjacent said base plates (100) are abutted; The tile (200) is W-shaped and is located on the side of the base plate (100) away from the inner wall of the flue; Mounting bolts (300) are threaded through the tile (200) and connected to the base plate (100) at one end; The base plate (100) includes: a plate body (110), the surface of which is provided with at least two sets of expansion grooves (120), the expansion grooves (120) being located on the side of the plate body (110) near the tile (200), and the two sets of expansion grooves (120) being located on both sides of the surface of the plate body (110) near the edge; wherein The tile (200) is secured in the expansion groove (120) on both sides; A ceramic fiber blanket is filled between the tile (200) and the base plate (100).

2. The wear-resistant tile according to claim 1, characterized in that, The plate (110) has a through hole (130) at the center of its surface; The base plate (100) also includes: A welding plate (140) is disposed in the through hole (130). The welding plate (140) is coplanar with the plate body (110), and there is a gap between the welding plate (140) and the through hole (130). Connecting blocks (150) are spaced apart between the circumference of the welding plate (140) and the inner wall of the through hole (130); An auxiliary ring (160) is disposed on the side of the welding plate (140) away from the inner wall of the flue; wherein The auxiliary ring (160) is disposed along the edge of the welding plate (140).

3. The wear-resistant tile according to claim 1, characterized in that, The mounting bolts (300) are provided in multiples, and the multiple mounting bolts (300) are arranged linearly at intervals in the groove of the tile (200); The mounting bolt (300) includes: A connecting platform (310) is provided on the surface of the plate (110); A threaded hole (320) is provided on the side of the connecting platform (310) near the tile (200); A countersunk hole (330) is provided in a groove on the surface of the tile (200); The bolt body (340) has its screw end threadedly connected to the inner wall of the threaded hole (320), and its head is located in the countersunk hole (330).

4. The wear-resistant tile according to claim 3, characterized in that, The mounting bolt (300) also includes: A sleeve (350), one end of which abuts against the surface of the connecting platform (310); A cut (360) is provided at one end of the sleeve (350) near the tile (200); wherein The sleeve (350) abuts against the surface of the tile (200) at one end near the cut (360).

5. The wear-resistant tile according to claim 4, characterized in that, The plate (110) has strip-shaped protrusions (170) on both sides, and the outer wall of the strip-shaped protrusions (170) is flush with the side wall of the plate (110). The expansion grooves (120) are formed on the adjacent surfaces of the two sets of strip-shaped protrusions (170); wherein The telescopic groove (120) is provided along the extending direction of the strip protrusion (170); The strip protrusion (170) is provided with a limiting strip (180) on the side near the plate (110). The limiting strip (180) is arranged along the length direction of the strip protrusion (170). The limiting strip (180) is parallel to the strip protrusion (170) and is spaced apart. The two ends of the tile (200) are located between the expansion groove (120) and the limiting strip (180).

6. The wear-resistant tile according to claim 5, characterized in that, The tile (200) includes: The W-shaped plate body (210) is composed of two V-shaped plates; The openings of the two V-shaped plates are positioned facing the plate body (110).

7. The wear-resistant tile according to claim 6, characterized in that, The side of the W-shaped plate body (210) away from the plate body (110) is provided with a stainless steel guard plate (220), and the stainless steel guard plate (220) is provided at the connection between the two V-shaped plates. Mounting grooves (230) are provided on the adjacent surfaces of the two V-shaped plates, and the mounting grooves (230) are provided along the length direction of the plate body (210); wherein The stainless steel guard plate (220) is fitted into the mounting groove (230).

8. The wear-resistant tile according to claim 7, characterized in that, The tile (200) also includes: There are two sets of L-strips (240). The two sets of L-strips (240) are respectively located on both sides of the plate body (210). The two sets of L-strips (240) are located close to the plate body (110). The openings of the two sets of L-strips (240) face to both sides. The two sets of L-strips (240) are respectively located in the expansion groove (120).

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