Wear-resistant elbow structure applied to lime pipe

Abstract

The invention belongs to the technical field of conveying pipes, and particularly relates to a wear-resistant elbow structure applied to a lime pipe, which comprises a conveying pipe elbow used for conveying lime powder; the outer pipe is connected outside the conveying pipe elbow and is used for preventing the lime powder from leaking; a gap is formed between the conveying pipe elbow and the outer pipe, and an intercepting sleeve is arranged between the conveying pipe elbow and the outer pipe and used for protecting the outer pipe; the two ends of the outer pipe are connected with a pair of connecting sleeves. The outer pipe is installed on the surface of the conveying pipe elbow through the connecting sleeves. The outer pipe is connected to the periphery of the conveying pipe elbow, the intercepting sleeve is arranged between the outer pipe and the conveying pipe elbow, and lime powder is stacked and stored in the limiting groove, so that the damaged position of the conveying pipe elbow is filled to form an isolating layer, impact of active lime powder in a pipeline on the outer pipe is blocked, and the outer pipe is protected; lime powder leakage is avoided, and the service life of the conveying pipe elbow is greatly prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of conveying pipes, in particular to a wear-resistant elbow structure applied to a lime pipe. Background Art

[0002] At present, the paint mist of the dry spray booth is collected by a limestone powder capture device. The limestone powder is transported through a lime pipeline. The thickness of the lime pipeline is generally 3-5mm. During the transportation of the lime powder, when the lime powder passes through the pipe elbow, due to inertia, the lime powder and the pipe elbow will continuously collide and rub. Over time, the lime pipe elbow becomes thinner and the wall is broken. The lime pipe elbow needs to be replaced every two years.

[0003] In the prior art, in order to extend the replacement cycle of pipe elbows, a wear-resistant layer thickening structure is generally added inside the elbow, but the wear-resistant layer does not have an external structure. When the wear-resistant layer is worn, the pipe elbow will still be worn and broken, and the improvement effect on the pipe elbow is not great. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a wear-resistant elbow structure applied to a lime pipe, by connecting an outer pipe to the periphery of the conveying pipe elbow and connecting an interception sleeve between the outer pipe and the conveying pipe elbow to protect the outer pipe, aiming to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: the wear-resistant elbow structure applied to the lime pipe proposed by the present invention includes: a conveying pipe elbow, which is used to convey lime powder; an outer pipe, which is connected to the outside of the conveying pipe elbow, and is used to prevent leakage of lime powder; a gap is provided between the conveying pipe elbow and the outer pipe, and an interception sleeve is provided between the conveying pipe elbow and the outer pipe, which is used to protect the outer pipe; a pair of connecting sleeves are connected at both ends of the outer pipe, and the outer pipe is installed on the surface of the conveying pipe elbow through the connecting sleeve.

[0006] As a preferred technical solution of the present invention, the outer wall of the interception sleeve is fitted with the inner wall of the outer pipe, and the inner wall of the interception sleeve is provided with a plurality of criss-crossing limit strips, the limit strips are fitted with the outer wall of the conveying pipe elbow, and a plurality of limit grooves are formed between the limit strips for storing lime powder.

[0007] As a preferred technical solution of the present invention, the conveying pipe elbow includes a curved portion located in the middle, with a pair of straight portions at both ends of the curved portion, the outer pipe is connected at the curved portion, and the connecting sleeve is connected at the intersection of the curved portion and the straight portion.

[0008] As a preferred technical solution of the present invention, a first annular body is provided on the connecting sleeve, the first annular body is connected between the conveying pipe elbow and the outer pipe, and a retaining ring is provided on the first annular body, and a second annular body is provided on the other side of the retaining ring for connecting to the straight part of the conveying pipe elbow.

[0009] As a preferred technical solution of the present invention, an annular groove is provided on the surface of the second annular body, a clamp is connected in the annular groove, and the connecting sleeve is fastened to the surface of the conveying pipe elbow through the clamp.

[0010] As a preferred technical solution of the present invention, a barrier sleeve is connected inside the conveying pipe elbow, the barrier sleeve is in contact with the inner wall of the conveying pipe elbow, the lime powder can be contained between the barrier sleeve and the interception sleeve, and a plurality of through holes are provided on the surface of the barrier sleeve.

[0011] As a preferred technical solution of the present invention, the through hole is in a rectangular, diamond or circular shape.

[0012] As a preferred technical solution of the present invention, a plurality of positioning bolts are connected to the outer tube, and the intercepting sleeve, the conveying pipe elbow and the barrier sleeve are all provided with connecting holes that cooperate with the positioning bolts.

[0013] As a preferred technical solution of the present invention, the interception sleeve and the barrier sleeve are both made of metal.

[0014] As a preferred technical solution of the present invention, a plug is provided on the outer tube.

[0015] The beneficial effects of the present invention are: 1. The present invention connects an outer pipe to the periphery of the conveying pipe elbow, and provides an interception sleeve between the outer pipe and the conveying pipe elbow. The inner wall of the interception sleeve is provided with a plurality of criss-cross limit strips, and limit grooves are formed between the limit strips. When the inner wall of the conveying pipe elbow is damaged, the lime powder at the damaged position is intercepted by the interception sleeve, and the lime powder is accumulated and stored in the limit groove, and then fills the damaged position of the conveying pipe elbow to form an isolation layer, thereby hindering the impact of the active lime powder in the pipeline on the outer pipe, protecting the outer pipe, avoiding the leakage of lime powder, and greatly extending the service life of the conveying pipe elbow.

[0016] 2. The present invention can reduce the wear of the conveying pipe elbow by lime powder by connecting a barrier sleeve to the inner wall of the conveying pipe elbow, and when the lime powder accumulates in the limiting groove, the barrier sleeve also plays a role in limiting the lime powder, so that the lime powder can be stably stored in the limiting groove to form a stable isolation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the wear-resistant elbow structure applied to lime pipes proposed by the present invention.

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0019] Figure 3 This is a schematic structural diagram of the delivery pipe elbow proposed by the present invention.

[0020] Figure 4 It is a cross-sectional schematic diagram of the interception sleeve proposed by the present invention.

[0021] Figure 5 This is a schematic structural diagram of the connecting sleeve proposed by the present invention.

[0022] Figure 6 This is a schematic structural diagram of the barrier sleeve proposed by the present invention.

[0023] In the figure: 1. conveying pipe elbow; 101. curved portion; 102. straight portion; 2. outer tube; 3. connecting sleeve; 31. first annular body; 32. second annular body; 33. annular groove; 34. clamp; 35. retaining ring; 4. intercepting sleeve; 41. limiting strip; 42. limiting groove; 5. barrier sleeve; 51. through hole; 6. positioning bolt; 7. plug. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Embodiment 1: This embodiment discloses a wear-resistant elbow structure applied to lime pipes, such as Figure 1-Figure 6 As shown, it includes: a delivery pipe elbow 1 for conveying lime powder; an outer pipe 2 connected to the outside of the delivery pipe elbow 1 for preventing lime powder leakage; wherein the delivery pipe elbow 1 includes a curved portion 101 located in the middle, a pair of straight portions 102 are provided at both ends of the curved portion 101, and the outer pipe 2 is connected to the curved portion 101; wherein the inner wall diameter of the delivery pipe elbow 1 is 100 mm, and the outer wall diameter is 108 mm; the inner wall diameter of the outer pipe 2 is 125 mm, and the outer wall diameter is 133 mm; so that a gap is left between the outer pipe 2 and the delivery pipe elbow 1, and the service life of the pipeline elbow is extended through the double-layer design, and when a certain position of the delivery pipe elbow 1 is damaged, the lime powder accumulates at the damaged position through the obstruction of the outer pipe 2, and the outer pipe 2 can prevent the leakage of the lime powder, and a plug 7 is provided on the outer pipe 2, and an observation hole is provided on the plug 7, through which the damage condition of the inner wall of the delivery pipe elbow 1 can be observed, and the delivery pipe elbow 1 can be replaced in time.

[0026] Embodiment 2: Based on the structure of the above embodiment 1, the difference is that Figure 4As shown, an interception sleeve 4 is provided between the conveying pipe elbow 1 and the outer pipe 2 for protecting the outer pipe 2. The interception sleeve 4 is made of metal material with good bending performance and is an overall curved tubular structure. The interception sleeve 4 can avoid the impact of lime powder on the outer pipe 2 and at the same time intercept the accumulation of lime powder; the outer wall of the interception sleeve 4 is in contact with the inner wall of the outer pipe 2, and the inner wall of the interception sleeve 4 is provided with a plurality of criss-crossing limit strips 41, the limit strips 41 are in contact with the outer wall of the conveying pipe elbow 1, and a plurality of limit grooves 42 are formed between the limit strips 41 for storing lime powder; when the conveying pipe elbow 1 is damaged at a certain place, the lime powder accumulates in the corresponding limit groove 42 through the damaged position, and the accumulated lime powder fills the damaged position to form an isolation layer to protect the outer pipe 2, thereby ensuring the normal transportation of the lime powder and avoiding the impact of the lime powder on the outer pipe 2, so that the conveying pipe elbow 1 can be used normally even after it is damaged.

[0027] Preferably, Figure 5 As shown, a pair of connecting sleeves 3 are connected at both ends of the outer tube 2, and the outer tube 2 is installed on the surface of the delivery pipe elbow 1 through the connecting sleeve 3; and the connecting sleeve 3 is connected at the intersection of the curved portion 101 and the straight portion 102; wherein, a first annular body 31 is provided on the connecting sleeve 3, and the first annular body 31 is connected between the delivery pipe elbow 1 and the outer tube 2, and plays a role in sealing between the delivery pipe elbow 1 and the outer tube 2, and a retaining ring 35 is provided on the first annular body 31, and the diameter of the retaining ring 35 is larger than the diameter of the first annular body 31, and the other side of the retaining ring 35 is provided There is a second annular body 32, which is used to be connected to the straight portion 102 of the conveying pipe elbow 1; the surface of the second annular body 32 is provided with an annular groove 33, and a clamp 34 is connected to the annular groove 33. The clamp 34 is a three-quarter circle structure, which is convenient for installing and disassembling the clamp 34. The connecting sleeve 3 is fastened to the surface of the conveying pipe elbow 1 through the clamp 34, and the positions of the two ends of the outer pipe 2 are limited by the connecting sleeve 3. At the same time, it plays a role in sealing between the outer pipe 2 and the conveying pipe elbow 1 to prevent dust and impurities from entering the outer pipe 2.

[0028] Embodiment 3: Based on the structure of the above embodiment 2, the difference is that Figure 6 As shown, a barrier sleeve 5 is connected to the conveying pipe elbow 1. The barrier sleeve 5 is made of metal and has a curved tubular structure. It has good bending performance and is easy to install. The barrier sleeve 5 fits the inner wall of the conveying pipe elbow 1. The lime powder can be accommodated between the barrier sleeve 5 and the interception sleeve 4 and stably accumulated in the limiting groove 42. At the same time, the barrier sleeve 5 also plays a role in reducing the protection of the conveying pipe elbow 1 and reducing the wear of the conveying pipe elbow 1 by the lime powder. A plurality of through holes 51 are provided on the surface of the barrier sleeve 5; wherein, the shape of the through hole 51 is not limited and can be rectangular, diamond or circular.

[0029] Preferably, a plurality of positioning bolts 6 are connected to the outer tube 2, and the intercepting sleeve 4, the conveying pipe elbow 1 and the barrier sleeve 5 are all provided with connecting holes that cooperate with the positioning bolts 6; the outer tube 2, the intercepting sleeve 4, the conveying pipe elbow 1 and the barrier sleeve 5 are all connected and fixed by the positioning bolts 6, thereby ensuring the stability of the overall structure and avoiding the position deviation of the intercepting sleeve 4 and the barrier sleeve 5.

[0030] During specific implementation: when lime powder impacts the conveying pipe elbow 1 for a long time and causes damage at a certain place, the lime powder enters the outer pipe 2 through the damaged hole and accumulates in the limiting groove 42 corresponding to the damaged hole, thereby avoiding the impact of the lime powder on the outer pipe 2 and achieving the purpose of protecting the outer pipe 2. Moreover, through the limitation of the barrier sleeve 5, the lime powder accumulation in the limiting groove 42 is stable, forming a stable isolation layer, which greatly extends the service life of the conveying pipe elbow 1.

[0031] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The wear-resistant elbow structure applied to lime pipe is characterized by: include: A conveying pipe elbow (1) is used for conveying lime powder; An outer pipe (2) connected to the outside of the conveying pipe elbow (1) to prevent leakage of lime powder; A gap is provided between the delivery pipe elbow (1) and the outer pipe (2), and an interception sleeve (4) is provided between the delivery pipe elbow (1) and the outer pipe (2) for protecting the outer pipe (2); A pair of connecting sleeves (3) are connected to both ends of the outer tube (2), and the outer tube (2) is installed on the surface of the conveying pipe elbow (1) through the connecting sleeves (3).

2. The wear-resistant elbow structure applied to lime pipe according to claim 1, characterized in that: The outer wall of the interception sleeve (4) is fitted with the inner wall of the outer pipe (2), and the inner wall of the interception sleeve (4) is provided with a plurality of crisscrossing limiting strips (41), the limiting strips (41) are fitted with the outer wall of the conveying pipe elbow (1), and a plurality of limiting grooves (42) are formed between the limiting strips (41) for storing lime powder.

3. The wear-resistant elbow structure applied to lime pipe according to claim 2 is characterized in that: The delivery pipe elbow (1) comprises a curved portion (101) located in the middle, a pair of straight portions (102) are provided at both ends of the curved portion (101), the outer pipe (2) is connected at the curved portion (101), and the connecting sleeve (3) is connected at the intersection of the curved portion (101) and the straight portion (102).

4. The wear-resistant elbow structure applied to lime pipe according to claim 3 is characterized in that: The connecting sleeve (3) is provided with a first annular body (31), the first annular body (31) being connected between the delivery pipe elbow (1) and the outer pipe (2), and a retaining ring (35) being provided on the first annular body (31), and a second annular body (32) being provided on the other side of the retaining ring (35) for connecting to the straight portion (102) of the delivery pipe elbow (1).

5. The wear-resistant elbow structure applied to lime pipe according to claim 4 is characterized in that: An annular clamping groove (33) is provided on the surface of the second annular body (32), a clamping hoop (34) is connected inside the annular clamping groove (33), and the connecting sleeve (3) is fastened to the surface of the conveying pipe elbow (1) via the clamping hoop (34).

6. The wear-resistant elbow structure applied to lime pipe according to claim 5, characterized in that: The conveying pipe elbow (1) is internally connected with a barrier sleeve (5), the barrier sleeve (5) is in contact with the inner wall of the conveying pipe elbow (1), lime powder can be contained between the barrier sleeve (5) and the interception sleeve (4), and a plurality of through holes (51) are provided on the surface of the barrier sleeve (5).

7. The wear-resistant elbow structure applied to lime pipe according to claim 6, characterized in that: The through hole (51) is in the shape of a rectangle, a diamond or a circle.

8. The wear-resistant elbow structure applied to lime pipe according to claim 6 or 7, characterized in that: The outer tube (2) is connected to a plurality of positioning bolts (6), and the interception sleeve (4), the delivery pipe elbow (1) and the barrier sleeve (5) are all provided with connection holes that cooperate with the positioning bolts (6).

9. The wear-resistant elbow structure applied to lime pipe according to claim 8, characterized in that: The interception sleeve (4) and the barrier sleeve (5) are both made of metal.

10. The wear-resistant elbow structure applied to lime pipe according to claim 9, characterized in that: The outer tube (2) is provided with a plug (7).

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