Wear-resistant elbow structure of slurry conveying pipeline

Abstract

The utility model relates to the technical field of slurry conveying, in particular to a wear-resistant elbow structure of a slurry conveying pipeline. The elbow of the slurry conveying pipeline is divided into the elbow body and the cover plate, the elbow body and the cover plate are spliced to form a complete elbow structure, the two ends of the elbow body are connected with the straight pipes on the two sides as usual to form a complete conveying pipeline, the cover plate covers the opening in a matched mode, and the spring and the wear-resisting plate are arranged on the inner side of the cover plate. When slurry impacts the wear-resisting plate, the impact force borne by the wear-resisting plate is buffered through the springs, and the position of the wear-resisting plate is limited through the first limiting pieces or the second limiting pieces arranged in the front direction, the rear direction, the left direction and the right direction of the wear-resisting plate, so that the wear-resisting plate can only move in the radial direction of the elbow body for buffering. And the cover plate is prevented from being broken by the impact force of slurry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slurry conveying, in particular to a wear-resistant elbow structure of a slurry conveying pipeline. BACKGROUND

[0002] In the process of slurry conveying, the problem of material wear on the pipeline has always existed, especially at the elbow part of the pipeline. When the slurry flows through the elbow, due to the kinetic characteristics of the fluid, a greater impact force and shear force will be generated on the inner wall of the side with a larger diameter of the elbow, which will aggravate the wear of the pipeline at the elbow part. This wear not only shortens the service life of the elbow of the pipeline, but also increases the operating cost of the enterprise. Frequent replacement of the worn pipeline elbow not only increases the maintenance cost, but also affects the continuity and stability of production. In addition, the rapid wear of the pipeline elbow also increases the labor intensity of the maintenance personnel. Since the wear part is usually located inside the pipeline, the maintenance personnel need to carry out tedious disassembly and installation work, which not only increases the working time, but also may pose a threat to the safety of the maintenance personnel. SUMMARY

[0003] The utility model aims at solving the problem of wear on the inner wall of the elbow of the above-mentioned slurry conveying pipeline, so as to provide a wear-resistant elbow structure which can buffer the slurry when conveying the slurry and is convenient for disassembling the wear position of the pipeline.

[0004] The utility model solves the problem by adopting the technical scheme of:

[0005] A wear-resistant elbow structure of a slurry conveying pipeline, comprising an elbow body, the two ends of the elbow body are connected with straight pipes through flanges, an opening is formed on the side with a large diameter of the elbow body, a matching cover plate is arranged in the opening, a wear-resistant plate is connected to the inner side of the cover plate through a spring, first limiting pieces for limiting the front and rear positions of the wear-resistant plate are further arranged at the front end and the rear end of the inner wall of the cover plate, and second limiting pieces for limiting the left and right positions of the wear-resistant plate are further arranged at the left end and the right end of the inner wall of the cover plate; when the spring is in a natural state, the thickness from the inner wall of the wear-resistant plate to the outer wall of the cover plate is greater than the wall thickness of the elbow body, and a hoop is arranged outside the elbow body and the cover plate.

[0006] The utility model adopts the above technical scheme, and has the beneficial effects compared with the prior art:

[0007] The elbow body and the cover plate are spliced to form a complete elbow structure, the two ends of the elbow body are connected with the straight pipes on the two sides as usual, a complete conveying pipeline is formed, the cover plate is matched and covered on the opening, and a spring and a wear plate are arranged on the inner side of the cover plate, when the slurry is conveyed, the impact force of the slurry on the wear plate is buffered by the spring, the first limiting piece or the second limiting piece is arranged in four directions of front, back, left and right of the wear plate to limit the position of the wear plate, so that the wear plate can only move and buffer along the radial direction of the elbow body, and the elbow body and the cover plate are tightly fixed by the hoop during use, so that the cover plate is prevented from being broken by the impact force of the slurry.

[0008] As preferred, the further technical scheme of the utility model is:

[0009] The two ends of the outer side of the cover plate are fixed with edges, the two ends of the opening are provided with sealing grooves matched with the shape and size of the edges, and one side of the edge and the sealing groove is fixed with a sealing rubber sheet. Through the above structure, the edge and the sealing groove are matched, the connecting gap between the edge and the sealing groove is sealed by the sealing rubber sheet, and the slurry leakage is avoided to the maximum extent.

[0010] The first limiting piece includes two annular limiting plates, the two limiting plates are fixed at the front and rear ends of the inner wall of the wear plate, and the wear plate is arranged on the inner side of the cover plate between the two limiting plates. The wear plate is limited on the inner side of the cover plate by the limiting plate, so that the wear plate is prevented from being separated from the cover plate and the spring when the slurry flows, and the buffering effect is affected.

[0011] The second limiting piece includes a plurality of limiting blocks, the limiting blocks are fixed at the left and right ends of the inner wall of the wear plate at equal intervals in the radial direction, and limiting grooves for matching the limiting blocks are formed at the two ends of the wear plate. Through the cooperation of the limiting block and the limiting groove, the wear plate is ensured to be located on the inner side of the cover plate, so that the wear plate is prevented from being separated from the cover plate and the spring when the slurry flows, and the buffering effect is affected.

[0012] The front and rear ends of the outer side of the cover plate are respectively fixed with fixed blocks, the fixed slots accommodating the fixed blocks are formed on the elbow body at the front and rear ends of the opening, and the fixed blocks and the fixed slots are fixed by bolts. When the cover plate is covered on the opening position, the fixed blocks are matched and inserted into the fixed slots, and are fixed by bolts. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the embodiment of the application;

[0014] Figure 2 It is a cover plate and elbow body split state schematic view of the embodiment of the application;

[0015] Figure 3 It is an elbow body structure schematic view of the embodiment of the application;

[0016] Figure 4 is a cover plate inside structure schematic diagram of the embodiment of the application;

[0017] Figure 5 is a spring position schematic diagram of the embodiment of the application.

[0018] In the figure: 1, cover plate; 11, fixed block; 12, edge; 13, limiting block; 14, limiting plate; 15, wear plate; 16, sealing rubber sheet; 17, spring; 2, elbow body; 21, fixed groove; 22, opening; 23, sealing groove; 3, rubber sleeve; 4, clamp. DETAILED DESCRIPTION

[0019] The utility model will be further explained in connection with the embodiment, the purpose is only in better understanding the utility model content, therefore, the example does not limit the protection scope of the utility model.

[0020] Referring to Figures 1-5 , the embodiment of the application discloses a wear-resistant elbow structure of slurry pipeline, which is suitable for the transportation of liquid slurry without particles, and comprises an elbow body 2 and a cover plate 1, the two ends of the elbow body 2 are connected with straight pipes through flanges, and the elbow body 2 and the cover plate 1 constitute a complete conveying pipeline, an opening 22 is formed in the outer side of the elbow body 2 with a larger diameter, the opening 22 is formed along the axial direction of the elbow body 2, the cover plate 1 matched with the shape and size of the opening 22 is installed at the position of the opening 22, the wall thickness of the cover plate 1 is smaller than that of the elbow body 2, a plurality of springs 17 are fixed on the inner wall of the cover plate 1, a wear plate 15 is installed at the front end of the spring 17, the shape of the wear plate 15 is similar to that of the cover plate 1, and the size of the wear plate 15 is smaller than that of the cover plate 1, first limiting pieces for limiting the front and rear positions of the wear plate 15 are further arranged at the front end and the rear end of the inner wall of the cover plate 1, and second limiting pieces for limiting the left and right positions of the wear plate 15 are further arranged at the left end and the right end of the inner wall of the cover plate 1; when the cover plate 1 covers the opening 22 and the springs 17 are in a natural state, the left end and the right end of the wear plate 15 are in contact with the left side and the right side of the opening 22 respectively, and the thickness from the inner wall of the wear plate 15 to the outer wall of the cover plate 1 is greater than the wall thickness of the elbow body 2; when the wear plate 15 is moved outwardly due to the impact of slurry in the conveying pipeline, the springs 17 are deformed, so that the impact force of the slurry is buffered, and when the springs 17 are deformed to the limit, the thickness from the inner wall of the wear plate 15 to the outer wall of the cover plate 1 is equal to the wall thickness of the elbow body 2; the outer sides of the elbow body 2 and the cover plate 1 are provided with clamps 4, and the cover plate 1 and the elbow body 2 are fixedly connected through the clamps 4.

[0021] In the embodiment, the two ends of the outer side of the cover plate 1 are fixed with the rims 12, the two ends of the opening 22 are provided with the sealing grooves 23 matched with the shape and size of the rims 12, and the rims 12 are fixed with the sealing rubber sheets 16 on the side abutting the sealing grooves 23. Through the above structure, the rims 12 and the sealing grooves 23 are matched, the connecting gap between the rims 12 and the sealing grooves 23 is sealed by the sealing rubber sheets 16, and the leakage of the slurry is avoided to the greatest extent.

[0022] In the embodiment, the first limiting member includes two annular limiting plates 14, the sum of the ring diameter of the limiting plates 14 and the ring diameter of the cover plate 1 is equal to the wall thickness of the elbow body 2, the two limiting plates 14 are respectively fixed at the front and rear ends of the inner wall of the wear-resistant plate 15 and are respectively flush with the front and rear side walls of the wear-resistant plate 15, and the wear-resistant plate 15 is arranged on the inner side of the cover plate 1 between the two limiting plates 14. The wear-resistant plate 15 is limited on the inner side of the cover plate 1 by the limiting plates 14, so that the wear-resistant plate 15 is prevented from being separated from the cover plate 1 and the spring 17 when the slurry flows, and the buffering effect is affected.

[0023] In the embodiment, the second limiting member includes six limiting blocks 13, the six limiting blocks 13 are respectively in two groups, the two groups of limiting blocks 13 are respectively fixed at the left and right ends of the inner wall of the wear-resistant plate 15 in the radial direction, the limiting blocks 13 on the same side are fixed at equal intervals, and the two ends of the wear-resistant plate 15 are provided with limiting grooves matched with the limiting blocks 13. In use, one side of the limiting blocks 13 is fixed in advance, the wear-resistant plate 15 is slid from the other side, the limiting blocks 13 and the limiting grooves are connected in position, then the limiting blocks 13 on the other side are fixed according to the position of the limiting grooves on the other side, the wear-resistant plate 15 is ensured to be located on the inner side of the cover plate 1 through the cooperation of the limiting blocks 13 and the limiting grooves, and the wear-resistant plate 15 is prevented from being separated from the cover plate 1 and the spring 17 when the slurry flows, and the buffering effect is affected.

[0024] In the embodiment, the front and rear ends of the outer side of the cover plate 1 are respectively fixed with the fixed blocks 11, the front and rear ends of the opening 22 are provided with the fixed grooves 21 accommodating the fixed blocks 11 on the elbow body 2, the corresponding positions of the fixed grooves 21 and the fixed blocks 11 are provided with threaded holes, and the fixed blocks 11 and the fixed grooves 21 are fixed by bolts. In use, the cover plate 1 is covered on the position of the opening 22, the fixed blocks 11 are matched and inserted into the fixed grooves 21, and the fixed blocks 11 and the fixed grooves 21 are fixed by bolts.

[0025] The elbow body 2 and the cover plate 1 are spliced to form a complete elbow structure, two ends of the elbow body 2 are connected with the straight pipes on the two sides normally, a complete conveying pipeline is formed, the cover plate 1 is matched and covered on the opening 22, and the spring 17 and the wear plate 15 are arranged on the inner side of the cover plate 1, when the slurry is conveyed, the impact force of the slurry on the wear plate 15 is buffered through the spring 17, the first limiting piece or the second limiting piece is arranged on the front and rear left and right four directions of the wear plate 15 to limit the position, so that the wear plate 15 can only move and buffer along the radial direction of the elbow body 2, the elbow body 2 and the cover plate 1 are tightly fixed through the hoop 4 during use, and the cover plate 1 is prevented from being broken under the impact force of the slurry. During use, the cover plate 1 is covered on the opening 22, the fixing blocks 11 at the two ends are fixed in the fixing grooves 21 through bolts, the rubber sleeve 3 is sleeved at the radial connecting gap position of the cover plate 1 and the elbow body 2, the rubber sleeve 3 is fixed through the hoop 4, a plurality of hoops 4 are additionally arranged at the middle position of the cover plate 1 and the elbow body 2, and the stability of the cover plate 1 is improved; when the slurry is conveyed, the slurry impacts the wear plate 15, the wear plate 15 moves outward, the spring 17 is deformed, the operator is arranged to check the wear degree of the wear plate 15 regularly, when the wear plate 15 is worn to a thin degree, the limiting block 13 on one side is disassembled, and the wear plate 15 can be replaced, and the limiting plate 14 is welded again after replacement.

[0026] The above only describes the preferred and feasible embodiments of the utility model, and does not limit the scope of the utility model, and equivalent changes made by applying the contents of the utility model specification and the drawings are included in the scope of the utility model.

Claims

1. A wear-resistant elbow structure of a slurry pipeline, comprising an elbow body, two ends of the elbow body being connected with straight pipes through flanges, characterized in that: The opening is provided with a matched cover plate, a wear plate is connected to the inner side of the cover plate through a spring, the front end and the rear end of the inner wall of the cover plate are further provided with first limiting pieces for limiting the front and rear positions of the wear plate, and the left end and the right end of the inner wall of the cover plate are further provided with second limiting pieces for limiting the left and right positions of the wear plate; when the spring is in a natural state, the thickness from the inner wall of the wear plate to the outer wall of the cover plate is greater than the wall thickness of the elbow body, and the outer side of the elbow body and the cover plate is provided with a hoop.

2. The wear-resistant elbow structure of a slurry pipeline according to claim 1, characterized in that: The outer side of the cover plate is fixed with a rim at both ends, the both ends of the opening are provided with sealing grooves matched with the shape and size of the rim, and one side of the rim butted with the sealing groove is fixed with a sealing rubber sheet.

3. The wear resistant elbow structure of a slurry pipeline according to claim 1, characterized in that: The first limiting piece comprises two annular limiting plates, the two limiting plates are respectively fixed at the front and rear ends of the inner wall of the wear plate, and the wear plate is arranged on the inner side of the cover plate between the two limiting plates.

4. The wear-resistant elbow structure of a slurry pipeline according to claim 1, characterized in that: The second limiting piece comprises a plurality of limiting blocks, each limiting block is respectively fixed at the left and right ends of the inner wall of the wear plate at equal intervals in the radial direction, and the both ends of the wear plate are provided with limiting grooves matched with the limiting blocks.

5. The wear resistant elbow structure of a slurry pipeline as claimed in claim 1, wherein: The front and rear ends of the outer side of the cover plate are respectively fixed with fixing blocks, the elbow body on the front and rear ends of the opening is provided with fixing grooves for accommodating the fixing blocks, and the fixing blocks and the fixing grooves are fixed through bolts.

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