Ceramic wear-resistant elbow with steel shell

Abstract

This utility model provides a ceramic wear-resistant elbow with a steel outer shell, comprising: a steel outer shell body, a base tube disposed on the steel outer shell body, and a ceramic sheet disposed on the inner side of the steel outer shell body; and a locking assembly disposed on the steel outer shell body, the locking assembly including an arc-shaped plate and a fixing ring, the arc-shaped plate being disposed on the ceramic sheet, the fixing ring being disposed on the inner side of the steel outer shell body, the fixing ring having a threaded post, and an arc-shaped groove being disposed on the inner side of the steel outer shell body, with a threaded hole disposed on the inner side of the arc-shaped groove. This utility model achieves fixation by aligning the arc-shaped plate on the ceramic sheet with the arc-shaped groove and sliding it in, then installing the fixing ring at both ends of the inner side of the steel outer shell body, and screwing the threaded post into the mounting hole. This two sets of fixing rings fix the position of the ceramic sheet, thus preventing the ceramic sheet from falling off during transportation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline manufacturing technology, specifically to a ceramic wear-resistant elbow with a steel outer shell. Background Technology

[0002] Traditional cast steel or alloy steel elbows have low surface hardness and a wear life that is only a fraction of that of ceramic materials. In contrast, ceramic wear-resistant elbows combine the high hardness, wear resistance, and corrosion resistance of ceramics with the strength, toughness, and machinability of a steel shell, making them widely used in industrial applications where wear, corrosion, and mechanical impact must be withstood simultaneously.

[0003] In industrial piping systems, the wear-resistant strengthening treatment of steel elbows typically involves using high-performance specialty adhesives to precisely bond alumina ceramic sheets to the inner wall of the steel outer shell, forming a composite wear-resistant structure. Through the elastic buffering effect of the adhesive, the ceramic sheets and the steel substrate achieve a tight bond with a perfect balance of rigidity and flexibility. This ensures both the high hardness and wear resistance of the ceramic layer and structural support from the steel outer shell. In practical applications, this significantly extends the service life of the elbow, thereby improving production efficiency and reducing maintenance costs.

[0004] In actual operation, when conveying highly abrasive media such as pulverized coal, ash, and slag, the particles continuously impact the surface of the ceramic discs at extremely high speeds. This may cause the adhesive layer to fatigue and peel off under cyclic stress, resulting in the ceramic discs falling off, causing blockages in the pipeline, and greatly reducing production efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ceramic wear-resistant elbow with a steel shell, which can solve the existing problems.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A ceramic wear-resistant elbow with a steel outer shell includes: a steel outer shell body, a base tube disposed on the steel outer shell body, and a ceramic plate disposed on the inner side of the steel outer shell body; a locking assembly disposed on the steel outer shell body, the locking assembly including an arc-shaped plate and a retaining ring, the arc-shaped plate being disposed on the ceramic plate, the retaining ring being disposed on the inner side of the steel outer shell body, the retaining ring having a threaded post, the inner side of the steel outer shell body having an arc-shaped groove, and the inner side of the arc-shaped groove having a threaded hole; and an installation assembly disposed on the steel outer shell body, the installation assembly including a first flange seat and a second flange seat, the first flange seat being disposed on the steel outer shell body, the second flange seat being disposed on the base tube, the first flange seat having a positioning block, and the second flange seat having a positioning groove.

[0008] Furthermore, the locking assembly also includes multiple sets of arc-shaped grooves evenly arranged inside the steel outer shell, an arc-shaped plate movably disposed inside the arc-shaped grooves, the arc-shaped grooves matching the arc-shaped plate, and a protective layer provided on the side of the ceramic plate closest to the inside of the steel outer shell.

[0009] Furthermore, the retaining rings are movably positioned at both ends of the inner side of the steel outer shell, and a sealing ring is provided on the side of the retaining ring closest to the ceramic sheet, with the sealing ring in contact with the ceramic sheet.

[0010] Furthermore, multiple sets of circular grooves are evenly arranged on the inner side of the fixing ring, and the threaded post is threaded inside the circular groove, and the threaded post penetrates the fixing ring.

[0011] Furthermore, the threaded hole is located inside the arc-shaped groove, and the threaded hole matches the threaded post.

[0012] Furthermore, the installation assembly also includes multiple sets of storage slots evenly arranged on the first flange seat, a positioning block movably disposed inside the storage slot, and an elastic element disposed between the storage slot and the positioning block.

[0013] Furthermore, the second flange seat is provided with a positioning groove corresponding to the positioning block, and the positioning groove matches the positioning block.

[0014] Furthermore, the second flange seat has multiple sets of bolts evenly threaded, and the first flange seat has mounting holes corresponding to the bolts, with the bolts matching the mounting holes.

[0015] Compared with the prior art, the beneficial effects of this utility model include:

[0016] 1. To prevent ceramic discs from falling off during material transport due to impact, when installing ceramic discs inside the steel outer casing, the operator first applies glue to the bottom and sides of the ceramic disc. Then, the arc-shaped plate on the ceramic disc is aligned with the arc-shaped groove and slid in. Next, the fixing rings are installed at both ends inside the steel outer casing, and the threaded post is screwed into the mounting hole to fix the fixing rings. This two-set fixing ring configuration secures the position of the ceramic disc, preventing it from falling off during transport.

[0017] 2. When connecting the base tube to the steel outer shell, the operator connects the first flange seat to the second flange seat, and then rotates the base tube to align the positioning block with the positioning groove. At this time, the elastic force of the elastic element can drive the positioning block to be inserted into the positioning groove, thereby achieving the pre-positioning of the base tube and the steel outer shell, which makes it easier for the operator to fix the base tube and the steel outer shell. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the ceramic wear-resistant elbow with a steel outer shell according to this utility model;

[0020] Figure 2 This is a schematic diagram of the base tube structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation component of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the fixing ring of this utility model;

[0023] Figure 5 This is a schematic diagram of the steel outer shell structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the ceramic sheet of this utility model;

[0025] The diagram shows the following labels: 1. Steel outer shell; 2. Base tube; 3. First flange seat; 4. Second flange seat; 5. Positioning groove; 6. Bolt; 7. Ceramic plate; 8. Mounting hole; 9. Positioning block; 10. Storage groove; 11. Elastic element; 12. Arc groove; 13. Fixing ring; 14. Sealing ring; 15. Threaded post; 16. Circular groove; 17. Protective layer; 18. Arc plate; 19. Threaded hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] like Figure 1 - Figure 6As shown, this utility model provides a ceramic wear-resistant elbow with a steel outer shell, comprising: a steel outer shell body 1, a base tube 2 disposed on the steel outer shell body 1, and a ceramic sheet 7 disposed on the inner side of the steel outer shell body 1; further comprising: a locking assembly disposed on the steel outer shell body 1, the locking assembly comprising an arc plate 18 and a fixing ring 13, the arc plate 18 being disposed on the ceramic sheet 7, the fixing ring 13 being disposed on the inner side of the steel outer shell body 1, the fixing ring 13 being disposed on a threaded post 15, the inner side of the steel outer shell body 1 being disposed on an arc groove 12, and the inner side of the arc groove 12 being disposed on a threaded hole 19; and an installation assembly disposed on the steel outer shell body 1, the installation assembly comprising a first flange seat 3 and a second flange seat 4, the first flange seat 3 being disposed on the steel outer shell body 1, the second flange seat 4 being disposed on the base tube 2, the first flange seat 3 being disposed on a positioning block 9, and the second flange seat 4 being disposed on a positioning groove 5.

[0028] In the above scheme:

[0029] 1. Since the arc groove 12 is a quarter-circle arc segment, and the arc plate 18 matches the arc groove 12, and the shape of the arc plate 18 has a certain slope, when the arc plate 18 slides into the arc groove 12, it can prevent the ceramic sheet 7 from detaching, thereby fixing the ceramic sheet 7 to the inside of the steel outer shell body 1, thus preventing the impact of materials from causing the ceramic sheet 7 to detach.

[0030] 2. The threaded post 15 is spirally inserted into the mounting hole 8, which can fix the retaining ring 13 to both ends of the inner side of the steel outer shell body 1, thereby preventing the arc plate 18 from detaching from the inner side of the arc groove 12, thus achieving the fixation of the ceramic piece 7.

[0031] 3. When it is necessary to connect the base tube 2 to the steel outer shell body 1, the positioning block 9 can be inserted into the positioning groove 5 to achieve the pre-positioning of the base tube 2 and the steel outer shell body 1, so as to facilitate the staff to fix the steel outer shell body 1 and the base tube 2 together.

[0032] In this embodiment, the locking assembly also includes multiple sets of arc-shaped grooves 12 uniformly arranged inside the steel outer shell body 1, an arc plate 18 movably arranged inside the arc-shaped grooves 12, the arc-shaped grooves 12 and the arc plate 18 matching, and a protective layer 17 is provided on the side of the ceramic sheet 7 near the inside of the steel outer shell body 1.

[0033] In the above solution, the protective layer 17 can effectively reduce the collision between the ceramic sheet 7 and the steel outer shell 1 when the ceramic sheet 7 is subjected to material impact.

[0034] In this embodiment, the fixing ring 13 is movably disposed at both ends inside the steel outer shell body 1, and a sealing ring 14 is provided on the side of the fixing ring 13 near the ceramic sheet 7, and the sealing ring 14 is in contact with the ceramic sheet 7.

[0035] In the above solution, the sealing ring 14 can prevent material from seeping in through the connection between the fixing ring 13 and the ceramic plate 7 during material conveying.

[0036] In this embodiment, multiple sets of circular grooves 16 are evenly arranged on the inner side of the fixing ring 13, and the threaded post 15 is threaded on the inner side of the circular groove 16 and passes through the fixing ring 13.

[0037] In the above solution, the threaded post 15 can be housed by the circular groove 16, thereby preventing the material from impacting the threaded post 15 during material conveying.

[0038] In this embodiment, the threaded hole 19 is disposed inside the arc-shaped groove 12, and the threaded hole 19 matches the threaded post 15.

[0039] In the above scheme, the position of the retaining ring 13 can be fixed by the cooperation of the threaded post 15 and the threaded hole 19.

[0040] In this embodiment, the installation assembly also includes a plurality of storage slots 10 evenly arranged on the first flange seat 3, a positioning block 9 movably disposed inside the storage slot 10, and an elastic element 11 disposed between the storage slot 10 and the positioning block 9.

[0041] In the above scheme, the elastic force of the elastic element 11 can drive the positioning block 9 to remain in a state of moving outward from the storage groove 10.

[0042] In this embodiment, a positioning groove 5 is provided on the second flange seat 4 corresponding to the positioning block 9, and the positioning groove 5 matches the positioning block 9.

[0043] In the above scheme, by inserting the positioning block 9 into the positioning groove 5, the base tube 2 and the steel outer shell body 1 can be initially connected together.

[0044] In this embodiment, the second flange seat 4 is provided with multiple sets of bolts 6 with uniform threads, and the first flange seat 3 is provided with mounting holes 8 corresponding to the bolts 6, and the bolts 6 are matched with the mounting holes 8.

[0045] In the above scheme, the first flange seat 3 and the second flange seat 4 can be fixed together by the cooperation of bolt 6 and mounting hole 8.

[0046] In this embodiment, during the specific implementation: when installing the ceramic sheet 7 inside the steel outer shell 1, the operator slides the arc-shaped plate 18 into the arc-shaped groove 12, thereby ensuring a tight connection between the ceramic sheet 7 and the inner side of the steel outer shell 1. Then, by installing the fixing ring 13 at both ends of the steel outer shell 1, the threaded post 15 and the threaded hole 19 are aligned. The operator screws the threaded post 15 into the threaded hole 19, thus fixing the position of the fixing ring 13. The fixing ring 13 restricts the position of the ceramic sheet 7, preventing displacement. By providing a protective layer 17 at the contact surface between the ceramic sheet 7 and the steel outer shell 1, the impact force on the ceramic sheet 7 during material conveying is effectively reduced. After one end of the threaded post 15 is screwed into the threaded hole 19, the thread... The other end of the column 15 is located in the circular groove 16, which avoids the threaded column 15 from obstructing the process when conveying materials. When it is necessary to connect the base tube 2 to the steel outer shell body 1, the operator places the first flange seat 3 and the second flange seat 4 together. Due to the pressure of the second flange seat 4 on the first flange seat 3, the positioning block 9 can be squeezed and recycled into the storage groove 10. Then, the operator rotates the second flange seat 4 to align the positioning block 9 with the positioning groove 5. The elastic force of the elastic element 11 can drive the positioning block 9 to be inserted into the positioning groove 5, thereby achieving the initial positioning of the second flange seat 4 and the first flange seat 3, so that the bolt 6 and the mounting hole 8 are aligned. The operator can quickly connect the base tube 2 and the steel outer shell body 1 by screwing the bolt 6 into the mounting hole 8.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ceramic wear-resistant elbow having a steel outer shell, comprising: A steel outer shell body (1), on which a base tube (2) is provided, and a ceramic plate (7) is provided on the inner side of the steel outer shell body (1), characterized in that it further includes: A locking assembly is provided on a steel outer shell body (1). The locking assembly includes an arc plate (18) and a fixing ring (13). The arc plate (18) is provided on a ceramic plate (7). The fixing ring (13) is provided on the inner side of the steel outer shell body (1). A threaded post (15) is provided on the fixing ring (13). An arc groove (12) is provided on the inner side of the steel outer shell body (1). A threaded hole (19) is provided on the inner side of the arc groove (12). The mounting assembly is mounted on the steel outer shell body (1). The mounting assembly includes a first flange seat (3) and a second flange seat (4). The first flange seat (3) is mounted on the steel outer shell body (1), and the second flange seat (4) is mounted on the base tube (2). The first flange seat (3) is provided with a positioning block (9), and the second flange seat (4) is provided with a positioning groove (5).

2. A ceramic wear-resistant elbow with a steel shell according to claim 1, characterized in that: The locking assembly also includes multiple sets of arc grooves (12) evenly arranged inside the steel outer shell body (1), the arc plate (18) is movably arranged inside the arc groove (12), the arc groove (12) matches the arc plate (18), and a protective layer (17) is provided on the side of the ceramic plate (7) near the inside of the steel outer shell body (1).

3. The ceramic wear-resistant elbow with a steel outer shell according to claim 2, characterized in that: The fixing ring (13) is movably disposed at both ends inside the steel outer shell body (1). A sealing ring (14) is provided on the side of the fixing ring (13) near the ceramic sheet (7), and the sealing ring (14) is in contact with the ceramic sheet (7).

4. The ceramic wear-resistant elbow with a steel outer shell according to claim 3, characterized in that: Multiple sets of circular grooves (16) are evenly arranged on the inner side of the fixed ring (13), and the threaded post (15) is threaded on the inner side of the circular groove (16) and the threaded post (15) penetrates the fixed ring (13).

5. The ceramic wear-resistant elbow with a steel outer shell according to claim 4, characterized in that: The threaded hole (19) is located inside the arc groove (12), and the threaded hole (19) matches the threaded post (15).

6. The ceramic wear-resistant elbow with a steel outer shell according to claim 1, characterized in that: The installation assembly also includes a first flange seat (3) on which multiple sets of storage slots (10) are evenly arranged, the positioning block (9) is movably arranged inside the storage slot (10), and an elastic element (11) is provided between the storage slot (10) and the positioning block (9).

7. The ceramic wear-resistant elbow with a steel outer shell according to claim 6, characterized in that: The second flange seat (4) is provided with a positioning groove (5) corresponding to the positioning block (9), and the positioning groove (5) matches the positioning block (9).

8. The ceramic wear-resistant elbow with a steel outer shell according to claim 7, characterized in that: The second flange seat (4) is provided with multiple sets of bolts (6) with uniform threads, and the first flange seat (3) is provided with mounting holes (8) corresponding to the bolts (6), and the bolts (6) are matched with the mounting holes (8).

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