Lining plate structure

Abstract

The utility model discloses a lining plate structure which comprises an outer lining plate, an inner lining plate, a connecting piece and a lining plate fixing piece, one end of the connecting piece is used for being embedded in a foundation, and the other end of the connecting piece is used for being connected with the outer lining plate or the inner lining plate. The inner lining plate is provided with a first inner surface and a first outer surface which are opposite in the thickness direction. The outer lining plate is provided with a second inner surface and a second outer surface which are opposite in the thickness direction; the ends of the inner lining plate and the outer lining plate are provided with lap joint positions, and part of the first outer surface makes contact with part of the second inner surface; the lining plate fixing piece is located at the lap joint position, and the lining plate fixing piece is provided with a fixing part fixed to the first outer surface of the inner lining plate and a contact part abutting against the second outer surface of the outer lining plate; at least in the width direction, a preset gap used for meeting the requirement for deformation of the outer lining plate and / or the inner lining plate is formed between the outer lining plate and the lining plate fixing piece. The heat-resistant material can be effectively protected, and meanwhile the problem of tension fracture of the foundation and the heat-resistant material is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection of heat insulation materials, in particular to a lining plate structure. Background Art

[0002] In metallurgy and related industries, more and more equipment foundations need to be insulated, such as slow cooling pits, heating furnace foundations, and reactor foundations. In addition, the insulation measures for concrete equipment foundations are also developing and improving, usually including laying refractory bricks, pouring heat-resistant materials, etc.

[0003] Since fireproof and heat-resistant materials (hereinafter referred to as heat-resistant materials) are generally brittle, and heat-resistant materials have exposed surfaces, the exposed heat-resistant materials are often damaged by impact.

[0004] In order to protect fireproof and heat-resistant materials, one way is to set a layer of embedded parts on the outer surface of the heat-resistant material. Then, because the embedded parts are connected to the foundation through anchor bars, the embedded parts and anchor bars are welded together, so the embedded parts cannot deform and cannot adapt well to the deformation caused by thermal expansion and contraction, and cracks often occur on site.

[0005] Therefore, it is necessary to provide a lining plate structure to solve at least one of the above problems. Utility Model Content

[0006] In view of the defects existing in the prior art, a lining structure is provided in the embodiment of the utility model, which can effectively protect the heat-resistant material and overcome the problem of cracking of the foundation and the heat-resistant material caused by thermal expansion and contraction.

[0007] The specific technical solution of the implementation mode of the utility model is:

[0008] A lining plate structure, comprising:

[0009] The lining plate structure includes: an outer lining plate, an inner lining plate, a connecting piece, and a lining plate fixing piece.

[0010] One end of the connecting piece is used to be embedded in the foundation, and the other end is used to be detachably connected to the outer lining plate or the inner lining plate;

[0011] The lining plate has a first inner surface and a first outer surface opposite to each other along the thickness direction;

[0012] The outer lining plate has a second inner surface and a second outer surface opposite to each other along the thickness direction;

[0013] The inner lining plate and the outer lining plate have overlapping positions at the ends, and part of the first outer surface contacts part of the second inner surface;

[0014] The lining plate fixing member is located at the overlapping position, and the lining plate fixing member has a fixing portion fixed to the first outer surface of the inner lining plate, and a contact portion abutting against the second outer surface of the outer lining plate;

[0015] At least along the width direction, a predetermined gap is formed between the outer lining plate and the lining plate fixing member to accommodate the deformation of the outer lining plate and / or the inner lining plate.

[0016] In a preferred embodiment, a gap is also formed between the inner lining plate and part of the lining plate fixing member along the thickness direction.

[0017] In a preferred embodiment, the connecting member is a bolt assembly, which includes a screw rod and a nut. Bolt holes are provided on the inner lining plate and the outer lining plate, and the hole diameter of the bolt hole is larger than the diameter of the screw rod.

[0018] In a preferred embodiment, along the width direction, a bolt hole is provided in the middle of the outer lining plate, and a bolt hole is provided in the middle of the inner lining plate.

[0019] In a preferred embodiment, along the length direction, the bolt holes of the inner lining plate or the outer lining plate are arranged at intervals of a predetermined distance.

[0020] In a preferred embodiment, the lining plate fixing piece is fixed to the inner lining plate by welding.

[0021] In a preferred embodiment, the welding method includes groove welding.

[0022] In a preferred embodiment, the lining plate fixing member includes: a vertical fixing member extending perpendicular to the thickness direction of the inner lining plate and a horizontal fixing member extending along the width direction of the outer lining plate, the vertical fixing member is provided with a first groove at the end facing the inner lining plate, and the horizontal fixing member is provided with a second groove at the end facing the vertical fixing member, and groove welds are provided at the first groove and the second groove.

[0023] In a preferred embodiment, the outer lining plate, the inner lining plate, the vertical fixing member and the horizontal fixing member are all regular rectangular plates as a whole.

[0024] In a preferred embodiment, along the width direction, it includes a plurality of outer lining plates and a plurality of inner lining plates, and the inner lining plates are arranged at intervals from the outer lining plates.

[0025] A method for manufacturing the liner structure as described above comprises:

[0026] Pre-embed the connecting piece at a predetermined position on the foundation;

[0027] Weld the vertical fixing piece on the inner lining plate by groove welding to ensure that a predetermined gap is formed between the vertical fixing piece and the outer lining plate;

[0028] Fix the inner lining plate to which the vertical fixing member is welded on the connecting member, and then fix the outer lining plate on the connecting member, and ensure that the outer lining plate overlaps the inner lining plate, and the predetermined gap is formed between the outer lining plate and the vertical fixing member;

[0029] The horizontal fixing piece is welded to the vertical fixing piece by groove welding and abuts against the outer lining plate.

[0030] In a preferred embodiment, the predetermined gap is not less than the change dimension ΔL of the outer lining plate in the width direction, and the change dimension ΔL of the outer lining plate in the width direction is determined by the following formula:

[0031] ΔL=η×α×ΔT×L

[0032] Among them, α is the linear expansion coefficient, ΔT is the temperature change of the environment in which the lining structure is located, L is the width of the outer lining, and η is the influence correction coefficient η of the bolt hole, and its value is between 1.05 and 1.1.

[0033] The technical solution of the utility model has the following significant beneficial effects:

[0034] The lining plate structure provided in the embodiment of the utility model fixes the inner lining plate to the outer surface of the heat-resistant material through a connector, overlaps the outer lining plate with the inner lining plate, and uses a lining plate fixing piece to perform edge wrapping on the outer lining plate. A gap is left between the lining plate fixing piece and the outer lining plate to ensure that the inner lining plate and the outer lining plate can be deformed freely during thermal expansion and contraction. Overall, the utility model effectively avoids the problem of heat-resistant material exposure, and also effectively solves the problem of cracking of the foundation and the heat-resistant material caused by thermal expansion and contraction of the inner lining plate and the outer lining plate.

[0035] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0037] Figure 1 A schematic structural diagram of a liner structure provided in an embodiment of the present application;

[0038] Figure 2 for Figure 1 A partial enlargement of point E in the middle Figure 1 ;

[0039] Figure 3 for Figure 1 A partial enlargement of point E in the middle Figure 2 .

[0040] Reference numerals of the present application:

[0041] 1. Outer lining board;

[0042] 11. a second inner surface;

[0043] 12. a second outer surface;

[0044] 2. Lining board;

[0045] 21. a first inner surface;

[0046] 22. a first outer surface;

[0047] 3. Connectors;

[0048] 4. Liner fixings;

[0049] 41. Vertical fixings;

[0050] 410, first slope;

[0051] 42. Horizontal fixings;

[0052] 420, second slope;

[0053] 5. Predetermine the gap;

[0054] X, thickness direction;

[0055] Y, width direction. DETAILED DESCRIPTION

[0056] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art fall within the scope defined by the claims attached to this application.

[0057] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0059] The utility model provides a lining plate structure, which can effectively protect the heat-resistant material and overcome the problem of cracking of the foundation and the heat-resistant material caused by thermal expansion and contraction.

[0060] Please refer to Figures 1 to 3 In the embodiment of the specification of the present application, a lining plate structure is provided, and the lining plate structure may include: an outer lining plate 1, an inner lining plate 2, a connecting member 3, and a lining plate fixing member 4, wherein one end of the connecting member 3 is used to be embedded in the foundation, and the other end is used to detachably connect the outer lining plate 1 or the inner lining plate 2; the inner lining plate 2 has a first inner surface 21 and a first outer surface 22 relative to each other along the thickness direction X; the outer lining plate 1 has a second inner surface 11 and a second outer surface 12 relative to each other along the thickness direction X; the inner lining plate 2 and the outer lining plate 1 have an overlapping position at the end, and part of the first outer surface 22 is in contact with part of the second inner surface 11; the lining plate fixing member 4 is located at the overlapping position, and the lining plate fixing member 4 has a fixing portion fixed to the first outer surface 22 of the inner lining plate 2, and a contact portion abutting against the second outer surface 12 of the outer lining plate 1; at least along the width direction Y, a predetermined gap 5 is formed between the outer lining plate 1 and the lining plate fixing member 4 to meet the deformation of the outer lining plate 1 and / or the inner lining plate 2. In addition, along the thickness direction X, a gap is also formed between the inner lining plate 2 and a part of the lining plate fixing member 4 .

[0061] In the implementation manner of the present application, the lining plate structure mainly includes: an outer lining plate 1, an inner lining plate 2, a connecting piece 3, a lining plate fixing piece 4 and other components.

[0062] The connector 3 is used to connect the outer lining plate 1 or the inner lining plate 2 to the foundation. One end of the connector 3 is used to be embedded in the foundation, and the other end is used to detachably connect the outer lining plate 1 or the inner lining plate 2. Specifically, the detachable connection method can be a threaded connection. Of course, the detachable connection method can also be other methods, which are not limited to the above description. The technicians in the relevant field may make other changes under the inspiration of the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should be covered within the protection scope of this application.

[0063] In one embodiment, when the detachable connection is a threaded connection, the connecting member 3 can be a bolt assembly, which includes a screw and a nut, and bolt holes are provided on the inner lining plate 2 and the outer lining plate 1, and the hole diameter of the bolt hole is larger than the diameter of the screw.

[0064] Since the diameter of the bolt hole is larger than the diameter of the screw rod, there is a clearance fit between the screw rod and the bolt hole. When the inner lining plate 2 or the outer lining plate 1 expands and contracts under the influence of temperature changes, the gap between the screw rod and the bolt hole provides space for the inner lining plate 2 or the outer lining plate 1 to deform relative to the screw rod, which can reduce the possibility of cracking of the inner lining plate 2 or the outer lining plate 1 during deformation to a certain extent.

[0065] Furthermore, along the width direction Y, a bolt hole is provided in the middle of the outer lining plate 1 , and a bolt hole is provided in the middle of the inner lining plate 2 .

[0066] In this embodiment, the outer lining plate 1 can be a regular rectangular plate as a whole, so as to facilitate splicing, production and installation. Of course, in some cases, according to special needs, the shape and structure of the outer lining plate 1 are not limited to the above examples.

[0067] In this embodiment, the inner lining plate 2 can be a regular rectangular plate as a whole, so as to facilitate splicing, production and installation. Of course, in some cases, according to special needs, the shape and structure of the inner lining plate 2 are not limited to the above examples.

[0068] Along the width direction Y, a bolt hole is provided in the middle of the outer lining plate 1, and the bolt hole is cooperated with a bolt assembly, so that no resistance is formed to the deformation of the outer lining plate 1 in the width direction Y. At the same time, for the screw in the bolt assembly, it will not be sheared under the action of the force generated when the outer lining plate 1 is deformed in the width direction Y.

[0069] Along the width direction Y, a bolt hole is provided in the middle of the inner lining plate 2, and the bolt hole is cooperated with a bolt assembly, so that no resistance is formed to the deformation of the inner lining plate 2 in the width direction Y. At the same time, for the screw in the bolt assembly, it will not be sheared and damaged under the action of the force generated when the inner lining plate 2 is deformed in the width direction Y.

[0070] In one embodiment, along the length direction, the plurality of bolt holes on the inner lining plate 2 or the outer lining plate 1 are arranged at intervals of a predetermined distance.

[0071] In the length direction, the outer lining plate 1 is provided with a plurality of bolt holes, and the plurality of bolt holes are arranged at predetermined intervals, so as to firmly fix the outer lining plate 1 to the foundation. The predetermined interval may be between 500 mm and 800 mm. Of course, the setting and selection of the predetermined interval may be determined comprehensively according to the specific application scenario of the lining plate structure, the size of the outer lining plate 1 and other factors, and the present application does not make a sole limitation here.

[0072] In the length direction, the inner lining plate 2 is provided with a plurality of bolt holes, and the plurality of bolt holes are arranged at predetermined intervals, so as to firmly fix the inner lining plate 2 to the foundation. The predetermined interval may be between 500 mm and 800 mm. Of course, the setting and selection of the predetermined interval may be determined comprehensively according to the specific application scenario of the lining plate structure, the size of the inner lining plate 2 and other factors, and the present application does not make a sole limitation here.

[0073] The lining plate structure may include a plurality of outer lining plates 1 and a plurality of inner lining plates 2, wherein the inner lining plates 2 are arranged at intervals and connected alternately with the outer lining plates 1. Figure 1 As shown, the lining structure may include multiple outer linings 1 and multiple inner linings 2. Specifically, the number of the outer linings 1 and the inner linings 2 can be determined comprehensively based on the application scenarios and the sizes of the outer linings 1 and the inner linings 2. This application does not make specific limitations here. During installation, the inner linings 2 and the outer linings 1 are arranged at intervals and connected alternately. The two form an overlapping structure at the matching position, and the overlapping structure mainly includes a lining fixing member 4. The lining fixing member 4 can be used to leave deformation space for the sliding of the outer lining 1 and / or the inner lining 2 to ensure that the outer lining 1 and / or the inner lining 2 are not prone to deformation damage such as warping.

[0074] In this embodiment, the inner lining plate 2 has a first inner surface 21 and a first outer surface 22 opposite to each other along the thickness direction X. The outer lining plate 1 has a second inner surface 11 and a second outer surface 12 opposite to each other along the thickness direction X. The inner lining plate 2 and the outer lining plate 1 have an overlapping position at the end, and a part of the first outer surface 22 contacts a part of the second inner surface 11. The lining plate fixing member 4 is located at the overlapping position, and the lining plate fixing member 4 has a fixing portion fixed to the first outer surface 22 of the inner lining plate 2, and a contact portion abutting against the second outer surface 12 of the outer lining plate 1.

[0075] The lining plate fixing member 4 and the inner lining plate 2 can be fixed by welding.

[0076] Specifically, the welding method includes groove welding. When the welding method adopts groove welding, an equal strength connection can be obtained at the welding position.

[0077] like Figure 2 As shown, in a specific embodiment, the lining plate fixing member 4 includes: a vertical fixing member 41 extending perpendicular to the thickness direction X of the inner lining plate 2 and a horizontal fixing member 42 extending along the width direction Y of the outer lining plate 1. The vertical fixing member 41 can be used to form the above-mentioned fixing portion, and the horizontal fixing member 42 is used to form the contact portion.

[0078] The vertical fixing member 41 and the horizontal fixing member 42 can be regular rectangular plates as a whole.

[0079] For example, the vertical fixing member 41 may be a regular rectangular plate, so as to facilitate splicing, manufacturing and installation. Of course, in some cases, the shape and structure of the vertical fixing member 41 may not be limited to the above examples according to special requirements.

[0080] In this embodiment, the entire cross fixing member 42 can be a regular rectangular plate, so as to facilitate splicing, manufacturing and installation. Of course, in some cases, the shape and structure of the cross fixing member 42 may not be limited to the above examples according to special needs.

[0081] like Figure 3As shown, when the welding method is groove welding, the vertical fixing member 41 is provided with a first groove 410 at the end facing the inner lining plate 2, and the horizontal fixing member 42 is provided with a second groove 420 at the end facing the vertical fixing member 41, and groove welds are provided at the first groove 410 and the second groove 420. Among them, the first groove 410 can be a symmetrical chamfered notch formed at the end of the vertical fixing member facing the first outer surface 22 of the inner lining plate 2. The second groove 420 can be a whole chamfered notch formed at the end of the horizontal fixing member 42 facing the vertical fixing member 41. The specific setting of the groove is related to the assembly order of the lining plate structure. Since the horizontal fixing member 42 is welded and fixed after the welding of the vertical fixing member 41 is completed, there is welding space on both sides of the vertical fixing member 41 along the width direction Y of the inner lining plate 2 when the vertical fixing member 41 is welded.

[0082] In some other specific implementations, the welding method may also be fillet welding, and the weld formed by fillet welding is a fillet weld. However, when fillet welding is used, only one-side welding can be performed, because the fillet weld on the inner side will affect the deformation space.

[0083] In the lining plate structure provided in the embodiment of the present application, at least along the width direction Y, a predetermined gap 5 is formed between the outer lining plate 1 and the lining plate fixing member 4 to satisfy the deformation of the outer lining plate 1 and / or the inner lining plate 2. After the lining plate fixing member 4 is provided, the predetermined gap 5 can be formed at least between the outer lining plate 1 and the lining plate fixing member 4 by reasonably arranging the matching relationship between the lining plate fixing member 4 and the inner lining plate 2 and the outer lining plate 1. The predetermined space leaves deformation space for the outer lining plate 1 and / or the inner lining plate 2 to slide, ensuring that the outer lining plate 1 and / or the inner lining plate 2 are not easily deformed and damaged such as warping.

[0084] Correspondingly, due to the construction and matching relationship of the above-mentioned lining structure, when a predetermined gap 5 is formed between the outer lining 1 and the lining fixing part 4 along the width direction Y to satisfy the deformation of the outer lining 1 and / or the inner lining 2, a gap is also formed between the inner lining 2 and the local lining fixing part 4 along the thickness direction X, thereby ensuring that the inner lining 2 and the outer lining 1 can freely expand and contract during thermal expansion and contraction without cracking the foundation and heat-resistant materials.

[0085] Among them, since the inner lining plate 2 and the outer lining plate 1 expand and contract due to temperature changes, the deformation is mainly the deformation of the outer lining plate 1 along the width direction Y, so it is necessary to reasonably control the size of the predetermined gap 5 in the width direction Y so that it can be no less than the change size of the outer lining plate 1 in the width direction Y. The change size ΔL of the outer lining plate 1 in the width direction Y is determined by the following formula:

[0086] ΔL=η×α×ΔT×L

[0087] Wherein, α is the linear expansion coefficient, ΔT is the temperature change of the environment in which the lining structure is located, L is the width of the outer lining 1, and η is the influence correction coefficient η of the bolt hole, and its value is between 1.05 and 1.1.

[0088] The lining plate structure provided in the embodiment of the utility model fixes the inner lining plate 2 to the outer surface of the heat-resistant material through the connecting piece 3, overlaps the outer lining plate 1 and the inner lining plate 2, and uses the lining plate fixing piece 4 to perform the edge wrapping treatment on the outer lining plate 1, and a gap is left between the lining plate fixing piece 4 and the outer lining plate 1 to ensure that the inner lining plate 2 and the outer lining plate 1 can be deformed freely during thermal expansion and contraction. Overall, the utility model effectively avoids the problem of heat-resistant material exposure, and also effectively solves the problem of cracking of the foundation and the heat-resistant material caused by thermal expansion and contraction of the inner lining plate 2 and the outer lining plate 1.

[0089] The present application also provides a method for manufacturing a liner structure. The method may include the following steps:

[0090] Pre-embed the connecting member 3 at a predetermined position on the foundation;

[0091] The vertical fixing member 41 is welded on the inner lining plate 2 by groove welding to ensure that a predetermined gap 5 is formed between the vertical fixing member 41 and the outer lining plate 1;

[0092] Fix the inner lining plate 2 with the vertical fixing member 41 welded thereto on the connecting member 3, and then fix the outer lining plate 1 on the connecting member 3, and ensure that the outer lining plate 1 overlaps the inner lining plate 2, so that the predetermined gap 5 is formed between the outer lining plate 1 and the vertical fixing member 41;

[0093] The horizontal fixing member 42 is welded to the vertical fixing member 41 by groove welding and abuts against the outer lining plate 1 .

[0094] Specifically, a connecting member 3, such as a bolt, is embedded in the foundation; a vertical fixing member 41 is welded on the inner lining plate 2 by groove welding, and a predetermined gap 5 is maintained between the vertical fixing member 41 and the outer lining plate 1; Figure 3 As shown, the inner lining plate 2 with the vertical fixing member 41 welded thereto is fixed on the bolts, and then the outer lining plate 1 is fixed on the bolts to overlap the inner lining plate 2; finally, the horizontal fixing plate is welded to the vertical fixing plate by groove welding.

[0095] Since a predetermined gap 5 is left between the lining plate fixing member 4 and the inner lining plate 2 and the outer lining plate 1, the inner lining plate 2 and the outer lining plate 1 can freely expand and contract when heated and cooled without tearing the foundation and the heat-resistant material.

[0096] The predetermined gap 5 is not less than the change dimension ΔL of the outer lining plate 1 in the width direction Y. The change dimension ΔL of the outer lining plate 1 in the width direction Y is determined by the following formula:

[0097] ΔL=η×α×ΔT×L

[0098] Wherein, α is the linear expansion coefficient, ΔT is the temperature change of the environment in which the lining structure is located, L is the width of the outer lining 1, and η is the influence correction coefficient η of the bolt hole, and its value is between 1.05 and 1.1.

[0099] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0100] The above-mentioned various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0101] The above are only a few embodiments of the present invention. Although the embodiments disclosed by the present invention are as above, the contents are only embodiments adopted for facilitating the understanding of the present invention and are not used to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modification and change in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention, but the scope of patent protection of the present invention shall still be subject to the scope defined by the attached claims.

Claims

1. A lining plate structure, characterized in that: The lining plate structure includes: an outer lining plate, an inner lining plate, a connecting piece, and a lining plate fixing piece. One end of the connecting piece is used to be embedded in the foundation, and the other end is used to be detachably connected to the outer lining plate or the inner lining plate; The lining plate has a first inner surface and a first outer surface opposite to each other along the thickness direction; The outer lining plate has a second inner surface and a second outer surface opposite to each other along the thickness direction; The inner lining plate and the outer lining plate have overlapping positions at the ends, and part of the first outer surface contacts part of the second inner surface; The lining plate fixing member is located at the overlapping position, and the lining plate fixing member has a fixing portion fixed to the first outer surface of the inner lining plate, and a contact portion abutting against the second outer surface of the outer lining plate; At least along the width direction, a predetermined gap is formed between the outer lining plate and the lining plate fixing member to accommodate the deformation of the outer lining plate and / or the inner lining plate.

2. The lining structure according to claim 1, characterized in that: A gap is also formed between the inner lining plate and part of the lining plate fixing member along the thickness direction.

3. The lining plate structure according to claim 1, characterized in that: The connecting piece is a bolt assembly, which includes a screw rod and a nut. Bolt holes are provided on the inner lining plate and the outer lining plate, and the hole diameter of the bolt hole is larger than the diameter of the screw rod.

4. The lining plate structure according to claim 3, characterized in that: In the width direction, a bolt hole is provided in the middle of the outer lining plate, and a bolt hole is provided in the middle of the inner lining plate.

5. The lining plate structure according to claim 3, characterized in that: In the length direction, the bolt holes of the inner lining plate or the outer lining plate are arranged at intervals of a predetermined distance.

6. The lining plate structure according to claim 1, characterized in that: The lining plate fixing piece is fixed to the inner lining plate by welding.

7. The lining plate structure according to claim 6, characterized in that: The welding method includes groove welding.

8. The lining plate structure according to claim 7, characterized in that: The lining plate fixing member includes: a vertical fixing member extending perpendicular to the thickness direction of the inner lining plate and a horizontal fixing member extending along the width direction of the outer lining plate, the vertical fixing member is provided with a first groove at the end facing the inner lining plate, and the horizontal fixing member is provided with a second groove at the end facing the vertical fixing member, and groove welds are provided at the first groove and the second groove.

9. The lining plate structure according to claim 8, characterized in that: The outer lining plate, the inner lining plate, the vertical fixing member and the horizontal fixing member are all regular rectangular plates as a whole.

10. The lining plate structure according to claim 1, characterized in that: In the width direction, a plurality of outer lining plates and a plurality of inner lining plates are included, and the inner lining plates are arranged at intervals from the outer lining plates.

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