Abrasion-proof device for elbow part of powder making pipeline

Abstract

The utility model relates to the technical field of pipeline leakage prevention, and discloses a pulverization pipeline elbow anti-abrasion device which comprises an elbow body, and a relieving mechanism is arranged in the elbow body. The relieving mechanism comprises two auxiliary blocks, the side faces, away from each other, of the two auxiliary blocks are fixedly connected with the inner wall of the elbow body, a transmission rod is rotationally connected to the interior of each auxiliary block, a movable plate is fixedly connected to the outer surface of each transmission rod, and an auxiliary spring is fixedly connected to the bottom face of each movable plate. The bottom end of each auxiliary spring is fixedly connected with the inner wall of the bent pipe body, and the inner wall of the bent pipe body is fixedly connected with an anti-abrasion piece. According to the anti-abrasion device for the elbow of the pulverizing pipeline, the capacity of multiple anti-abrasion mechanisms is achieved, the durability of the elbow body is greatly improved, impact generated during pulverizing can be resolved, pulverized coal passing through the elbow can flow slowly, and the effect of improving the applicability of the anti-abrasion device for the elbow of the pulverizing pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline leakage prevention, in particular to an anti-wear device for an elbow of a milling pipeline. Background Art

[0002] There are many leakage points in the pulverizing system of power plants. Due to the high fineness of coal powder and the high temperature and high flow rate of air at the elbows of the pulverizing system, a large impact is generated on the elbows. Since the elbows are where the impact force is the most severe and the part with the most wear, once the elbows are broken, there will be moderate leakage, which will affect the safe production process and even endanger people.

[0003] The utility model with the existing authorization announcement number CN216555901U discloses an anti-wear device for the elbow of a power plant pulverizing pipeline, including a main unit, which includes a stop ring arranged on a pipe body, and two positioning members arranged on the stop ring, wherein the positioning members include two fixed welded clamps, and the two positioning members are respectively distributed in the transverse straight pipe part and the longitudinal straight pipe part of the pipe body.

[0004] By adopting the above technical scheme, the upper shell and the lower shell are directly welded to the elbow of the pipe body, and then the anti-wear filler is injected through the injection port, so as to increase the wear resistance of the pipeline elbow after the leakage point, that is, the durability of the use. However, the anti-wear mechanism of the above technical scheme is too simple to ensure the durability of the pipeline elbow. It can neither resolve the impact generated during pulverizing, nor slow the flow of coal powder that needs to pass through the elbow, which reduces the applicability of the anti-wear device of the pulverizing pipeline elbow.

[0005] Therefore, those skilled in the art provide an anti-wear device for the elbow of a milling pipeline to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0006] The utility model aims to provide an anti-wear device for the elbow of a milling pipeline to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A milling pipeline elbow anti-wear device, comprising an elbow body, wherein a relief mechanism is arranged inside the elbow body;

[0009] The relief mechanism includes two auxiliary blocks, and the side surfaces of the two auxiliary blocks that are away from each other are fixedly connected to the inner wall of the bending pipe body. The interior of each of the auxiliary blocks is rotatably connected to a transmission rod, the outer surface of each transmission rod is fixedly connected to a movable plate, the bottom surface of each movable plate is fixedly connected to an auxiliary spring, the bottom end of each auxiliary spring is fixedly connected to the inner wall of the bending pipe body, the inner wall of the bending pipe body is fixedly connected to an anti-wear plate, the inner wall of the anti-wear plate is fixedly connected to three buffer springs, and the top ends of the three buffer springs are commonly fixedly connected to a buffer plate.

[0010] As a further solution of the utility model: a first connecting ring is fixedly connected to the outer surface of the curved pipe body, and first fixing holes arranged at equal distances are opened on the upper surface of the first connecting ring.

[0011] As a further solution of the utility model: a reinforcement ring is fixedly connected to the bottom end of the first connecting ring, and the inner wall of the reinforcement ring is fixedly connected to the outer surface of the bent pipe body.

[0012] As a further solution of the utility model: the left and right side surfaces of each auxiliary block are fixedly connected with a fixing block, and the side surface of each group of fixing blocks which is away from each other is fixedly connected to the inner wall of the elbow body.

[0013] As a further solution of the utility model: the outer surface of each transmission rod is sleeved with two auxiliary bearings, and each auxiliary bearing is embedded in the interior of the auxiliary block.

[0014] As a further solution of the utility model: a second connecting ring is fixedly connected to the outer surface of the curved pipe body, and a second fixing hole arranged at equal distances is opened on the front side of the second connecting ring.

[0015] As a further solution of the utility model: a stabilizing ring is fixedly connected to one end of the second connecting ring close to the elbow body, and the inner wall of the stabilizing ring is fixedly connected to the outer surface of the elbow body.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model is provided with an auxiliary block, a transmission rod, a movable plate and an auxiliary spring. When the coal powder passes through the elbow body, the resistance of the movable plate can be used to reduce the flow speed of the coal powder. At the same time, the auxiliary spring can be used to apply telescopic ability to the movable plate, thereby further improving the effect of alleviating the coal powder speed, thereby reducing the damage caused to the elbow body by the coal powder when it flows, and effectively improving the service life and durability of the elbow body. The anti-wear sheet, the buffer spring and the buffer plate are used to improve the firmness of the inner wall of the elbow body through the anti-wear sheet. At the same time, the buffer plate and the buffer spring are used to effectively reduce the impact force generated by the coal powder after the speed is alleviated, further improving the service life and durability of the elbow body, realizing the ability of having multiple anti-wear mechanisms, greatly increasing the durability of the elbow body, and can not only resolve the impact generated during pulverizing, but also slow down the flow of coal powder passing through the elbow, thereby improving the applicability of the anti-wear device of the elbow part of the pulverizing pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an anti-wear device for the elbow of a milling pipeline;

[0019] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of an auxiliary block in an anti-wear device for an elbow of a milling pipeline;

[0020] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of an anti-wear plate in an anti-wear device for a milling pipeline elbow;

[0021] Figure 4 The present invention is a schematic diagram of the cross-sectional three-dimensional structure of an elbow body in an anti-wear device for an elbow section of a milling pipeline.

[0022] In the figure: 1. bend pipe body; 2. relief mechanism; 201. auxiliary block; 202. transmission rod; 203. movable plate; 204. auxiliary spring; 205. anti-wear plate; 206. buffer spring; 207. buffer plate; 3. first connecting ring; 4. first fixing hole; 5. reinforcement ring; 6. firm block; 7. auxiliary bearing; 8. second connecting ring; 9. second fixing hole; 10. stabilizing ring. DETAILED DESCRIPTION

[0023] See also Figure 1-4 , a milling pipeline elbow anti-wear device, comprising an elbow body 1, wherein a relief mechanism 2 is arranged inside the elbow body 1;

[0024] The relief mechanism 2 includes two auxiliary blocks 201, and the side surfaces of the two auxiliary blocks 201 that are away from each other are fixedly connected to the inner wall of the bent pipe body 1. The outer surface of the bent pipe body 1 is fixedly connected to a first connecting ring 3, and the upper surface of the first connecting ring 3 is provided with first fixing holes 4 arranged at equal distances. By utilizing the cooperation between the first connecting ring 3 and the first fixing holes 4, the convenience of fixing the top end of the bent pipe body 1 can be improved when it is necessary, and the fixing can be completed by bolts passing through the first fixing holes 4.

[0025] The bottom end of the first connecting ring 3 is fixedly connected with a reinforcement ring 5, and the inner wall of the reinforcement ring 5 is fixedly connected to the outer surface of the bent pipe body 1. The reinforcement ring 5 can increase the fixed connection area between the first connecting ring 3 and the bent pipe body 1, thereby improving the firmness of the connection between the two parties, avoiding breakage after long-term use, and increasing the durability of the first connecting ring 3.

[0026] The interior of each auxiliary block 201 is rotatably connected to a transmission rod 202, and the left and right sides of each auxiliary block 201 are fixedly connected to a fixing block 6. The side of each group of fixing blocks 6 that are away from each other are fixedly connected to the inner wall of the bending pipe body 1. The fixing block 6 can increase the fixed connection area between the auxiliary block 201 and the bending pipe body 1, making the auxiliary block 201 more secure, avoiding the possibility of loosening of the auxiliary block 201 after long-term use, and increasing the service life of the auxiliary block 201.

[0027] The outer surface of each transmission rod 202 is fixedly connected to a movable plate 203, and the outer surface of each transmission rod 202 is sleeved with two auxiliary bearings 7, each auxiliary bearing 7 is embedded in the inside of the auxiliary block 201, and the auxiliary bearings 7 can reduce the friction generated by the transmission rod 202 during rotation, making the transmission rod 202 more sensitive during rotation, and also can reduce the degree of wear of the transmission rod 202 and increase the service life of the transmission rod 202.

[0028] The bottom surface of each movable plate 203 is fixedly connected with an auxiliary spring 204, and the bottom end of each auxiliary spring 204 is fixedly connected to the inner wall of the bent pipe body 1. The inner wall of the bent pipe body 1 is fixedly connected with an anti-wear plate 205, and the inner wall of the anti-wear plate 205 is fixedly connected with three buffer springs 206. The top ends of the three buffer springs 206 are commonly fixedly connected with a buffer plate 207. The outer surface of the bent pipe body 1 is fixedly connected with a second connecting ring 8, and the front side of the second connecting ring 8 is provided with second fixing holes 9 arranged at equal distances. Through the cooperation of the second connecting ring 8 and the second fixing holes 9, the convenience of fixing the air outlet end of the bent pipe body 1 can be improved, and foreign objects can be passed through the second fixing holes 9, thereby improving the convenience of the device.

[0029] A stabilizing ring 10 is fixedly connected to one end of the second connecting ring 8 close to the curved pipe body 1. The inner wall of the stabilizing ring 10 is fixedly connected to the outer surface of the curved pipe body 1. The stabilizing ring 10 can increase the fixed connection area between the second connecting ring 8 and the curved pipe body 1, effectively increase the firmness of the second connecting ring 8, and prevent the second connecting ring 8 from falling off after long-term use.

[0030] The working principle of the utility model is as follows: when in use, first fix the first connecting ring 3 to the feed end through the first fixing hole 4, and use the second fixing hole 9 to fix the second connecting ring 8 to the discharge end. In the process of pulverizing, the coal powder will be blocked by the movable plate 203 when passing through the elbow body 1, so that the movable plate 203 can achieve different rotation angles when subjected to different flow rates by relying on the cooperation of the transmission rod 202 and the auxiliary spring 204. The auxiliary bearing 7 can increase the sensitivity of the transmission rod 202 during rotation, effectively slow down the speed of the coal powder, thereby reducing the damage caused by the coal powder to the elbow body 1 during flow, and at the same time can also increase the durability of the elbow body 1. The slowed-down coal powder will collide with the buffer plate 207 again during the flow process. When the buffer plate 207 is hit by the coal powder, it can rely on the cooperation of the buffer spring 206 to alleviate the impact force. At the same time, the anti-wear sheet 205 can improve the firmness of the inside of the elbow body 1, further improve the service life and durability of the elbow body 1, and effectively increase the applicability of the anti-wear device of the elbow of the pulverizing pipeline.

[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A milling pipeline elbow anti-wear device, comprising an elbow body (1), Features: A relief mechanism (2) is provided inside the curved pipe body (1); The relief mechanism (2) comprises two auxiliary blocks (201), the side surfaces of the two auxiliary blocks (201) being away from each other are fixedly connected to the inner wall of the bent pipe body (1), the interior of each auxiliary block (201) is rotatably connected to a transmission rod (202), the outer surface of each transmission rod (202) is fixedly connected to a movable plate (203), the bottom surface of each movable plate (203) is fixedly connected to an auxiliary spring (204), the bottom end of each auxiliary spring (204) is fixedly connected to the inner wall of the bent pipe body (1), the inner wall of the bent pipe body (1) is fixedly connected to an anti-wear plate (205), the inner wall of the anti-wear plate (205) is fixedly connected to three buffer springs (206), and the top ends of the three buffer springs (206) are commonly fixedly connected to a buffer plate (207).

2. The anti-wear device for the elbow of a milling pipeline according to claim 1, Features: A first connecting ring (3) is fixedly connected to the outer surface of the curved pipe body (1), and first fixing holes (4) arranged at equal distances are provided on the upper surface of the first connecting ring (3).

3. The anti-wear device for the elbow of a milling pipeline according to claim 2, Features: A reinforcement ring (5) is fixedly connected to the bottom end of the first connection ring (3), and the inner wall of the reinforcement ring (5) is fixedly connected to the outer surface of the elbow body (1).

4. The anti-wear device for the elbow of a milling pipeline according to claim 1, Features: The left and right side surfaces of each auxiliary block (201) are fixedly connected to a fixing block (6), and the side surfaces of each group of fixing blocks (6) that are away from each other are fixedly connected to the inner wall of the elbow body (1).

5. The anti-wear device for the elbow of a milling pipeline according to claim 1, Features: The outer surface of each transmission rod (202) is sleeved with two auxiliary bearings (7), and each auxiliary bearing (7) is embedded in the interior of the auxiliary block (201).

6. The anti-wear device for the elbow of a milling pipeline according to claim 1, Features: A second connecting ring (8) is fixedly connected to the outer surface of the curved pipe body (1), and second fixing holes (9) arranged at equal distances are provided on the front side of the second connecting ring (8).

7. The anti-wear device for the elbow of a milling pipeline according to claim 6, Features: One end of the second connecting ring (8) close to the curved pipe body (1) is fixedly connected to a stabilizing ring (10), and the inner wall of the stabilizing ring (10) is fixedly connected to the outer surface of the curved pipe body (1).

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