Leakage-proof device for dust conveying curve in aluminum ash treatment
By using a leak-proof device combining air pipes and bent pipes during aluminum ash treatment, the wear problem at the turning of pipelines during aluminum ash treatment is solved, the service life of the pipeline is extended, and production costs and environmental risks are reduced.
Patent Information
- Application Number
- CN202422260376.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-14
AI Technical Summary
During the aluminum ash treatment process, frequent shutdown of the pipeline bend due to impact wear and maintenance, resulting in low production efficiency, high cost and environmental risks.
A device for anti-leakage of aluminum ash dust transport curve is designed, using a combination of air pipe and bent pipe. The maximum diameter of air pipe is larger than that of air pipe. The wear-resistant layer wraps the air pipe and some of the bent pipes. The connection between the bent pipe and the air pipe is arc-shaped to avoid direct contact between aluminum ash and the pipe wall.
It effectively reduces wear at pipe turning, extends service life, reduces the frequency of shutdown and maintenance, and improves production efficiency and safety.
Smart Images
Figure CN223175264U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum ash treatment, in particular to a dust conveying bend anti-leakage device for aluminum ash treatment. Background Art
[0002] During the aluminum ash treatment process, a Roots blower is required to generate high-pressure air to convey the generated aluminum ash to the ash bin through a pipeline. When the aluminum ash passes through the bend of the conveying pipeline, under the action of inertia, the aluminum ash concentrates and closely adheres to the outer side of the pipeline and rushes towards the turning corner. The high-pressure air drives the aluminum ash to generate a great grinding effect, and the strong impact wear causes this place to be quickly worn through. Frequent shutdowns for maintenance and pipeline replacement are required. Currently, the newly installed pipeline can only be used for about three months, bringing a series of problems such as low production efficiency, high production cost, and high labor intensity to the enterprise, directly affecting its economic benefits, and the leaked aluminum ash will pose a safety risk to the environment.
[0003] Therefore, there is an urgent need for a dust conveying bend anti-leakage device that is not easily worn at the bend during the aluminum ash treatment process. Summary of the Invention
[0004] The utility model provides a dust conveying bend anti-leakage device for aluminum ash treatment to solve the problems of impact wear at the existing pipeline bends and frequent shutdowns for equipment maintenance during the aluminum ash treatment process, reduce the impact wear of materials on the pipeline bends, and enhance the service life of the conveying pipeline.
[0005] To achieve the above object, the technical solution of the utility model is as follows:
[0006] A dust conveying bend anti-leakage device for aluminum ash treatment includes an elbow pipe. An inlet and an outlet are provided on the elbow pipe. The inlet and the outlet form an angle. An empty pipe is arranged on the elbow pipe along the central axis direction of the inlet. The empty pipe is a variable-diameter pipe. The maximum diameter of the empty pipe is larger than the diameter of the elbow pipe. One end of the empty pipe is closed and the other end is connected to the elbow pipe. When conveying aluminum dust, the aluminum dust fills the empty pipe, so that the high-pressure conveyed aluminum ash does not directly contact the pipe wall at the bend, thereby avoiding wear and leakage at the pipe bend.
[0007] Further, the angle between the inlet and the outlet is not less than 90°. Within this range, the empty pipe can play a role in preventing wear at the pipe bend.
[0008] Further, it further includes a wear-resistant layer. The wear-resistant layer wraps the empty pipe and part or all of the elbow pipe. The wear-resistant layer is used to increase the strength of the pipeline.
[0009] Further, the elbow pipe, the empty pipe, and the connection between the elbow pipe and the empty pipe are all arc-shaped. This makes the conveying of aluminum ash in the pipeline more smooth and ensures the efficiency of aluminum ash conveying.
[0010] Further, the closed end of the empty tube is spherical, and the connection between the closed end of the empty tube and the bent tube has a smooth transition. After the aluminum ash enters the empty tube, the cross-section of the pipeline becomes larger and the flow rate of the aluminum ash air flow becomes smaller, avoiding the direct impact of the aluminum ash on the pipe wall.
[0011] Further, along the central axis direction of the feed inlet, the radius of the empty tube first increases and then decreases. After the empty tube is filled with aluminum ash, the aluminum ash air flow under high-pressure transportation rubs against the aluminum ash at the pipe bend and does not directly contact the inner wall of the pipe.
[0012] Further, the inner side of the bent tube is arc-shaped, and the empty tube is arranged on the outer side of the bent tube. The empty tube is only connected to the outer side surface of the bent tube, and the aluminum ash is stored on the outer side of the bent tube, which not only avoids the wear of the outer side surface of the bent tube but also ensures the relatively stable flow rate of the aluminum ash in the pipeline.
[0013] Through the above technical solutions, the beneficial effects of the present utility model are as follows:
[0014] The present utility model provides an empty tube outside the bent tube. The empty tube and the central axis of the feed inlet are on the same straight line. The aluminum ash enters the bent tube from the feed inlet and enters the empty tube under the action of inertia. The empty tube filled with aluminum ash serves as a part of the pipeline and directly contacts the high-speed moving aluminum ash, thus separating the high-speed moving aluminum ash from the pipe wall at the bend, avoiding the impact on the pipe wall at the bend, thereby avoiding pipeline wear and enhancing the service life of the bent tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the bent tube and the empty tube of the present utility model;
[0016] Figure 2 is a schematic structural diagram of a bent tube without an empty tube;
[0017] Figure 3 is a schematic structural diagram of the present utility model with a wear-resistant layer;
[0018] In the drawings, the reference numerals are: 1 is the bent tube, 11 is the feed inlet, 12 is the discharge outlet, 2 is the empty tube, and 3 is the wear-resistant layer. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The present utility model will be further described below in conjunction with the drawings and specific embodiments:
[0020] As Figure 1As shown in the figure, this embodiment provides an anti-leakage device for the dust conveying bend in aluminum ash treatment, which includes an elbow 1. The elbow 1 is arranged on the dust conveying pipeline for aluminum ash treatment. An inlet 11 and an outlet 12 are provided on the elbow 1. There is an angle between the inlet 11 and the outlet 12, and the angle between the inlet 11 and the outlet 12 is not less than 90°. In the attached figure, the included angle between the inlet 11 and the outlet 12 is 90°. An empty pipe 2 is arranged on the elbow 1 along the central axis direction of the inlet 11. The empty pipe 2 is a variable-diameter pipe, and the maximum diameter of the empty pipe 2 is larger than the diameter of the elbow 1. One end of the empty pipe 2 is closed and the other end is connected to the elbow 1.
[0021] When the material enters the elbow 1 from the inlet 11, due to inertia, the material in the elbow 1 rushes into the empty pipe 2. Since the width of the empty pipe 2 is larger than that of the elbow 1, the material decelerates after entering the empty pipe 2 and accumulates in the empty pipe 2. After the space in the empty pipe 2 is filled with the material, the high-speed material entering the elbow 11 later frictions with the material accumulated at the mouth of the empty pipe 2 and then leaves the pipeline from the outlet 12 after turning.
[0022] The following effects can be produced therefrom:
[0023] The material frictions with the material at the turning point instead of directly contacting the pipe wall, thus avoiding the wear of the pipe wall under high-speed impact and improving the service life of the dust conveying bend in aluminum ash treatment.
[0024] Figure 2 The following shows the schematic structural diagram of the elbow 1 without the empty pipe 2. Compared with the pipeline shown in Figure 1 When the material enters the elbow 1 from the inlet 11, it directly contacts the pipe wall. The high-pressure air flow carrying a large amount of aluminum ash impacts the pipe wall, causing the turning point of the elbow 1 to rupture, resulting in aluminum ash leakage, and the pipeline needs to be replaced in time by shutting down the machine.
[0025] As Figure 3 shown, the anti-leakage device for the dust conveying bend in aluminum ash treatment further includes a wear-resistant layer 3. The wear-resistant layer 3 wraps the empty pipe 2 and part or all of the elbow 1. The wear-resistant layer 3 can adopt materials such as well-wearing cast stone, cast steel or alumina ceramics. As an implementable way, the wear-resistant layer 3 is composed of a cast stone melt and a steel plate. The cast stone melt is poured into the space between the outer steel plate shell and the inner steel plate shell.
[0026] In order to ensure the flow rate of the material in the pipeline, the elbow 1, the empty pipe 2 and the connection between the elbow 1 and the empty pipe 2 are all arc-shaped to reduce the friction between the material and the pipe wall. As Figure 1As shown in the figure, the empty tube 2 is located on the other side of the discharge port 12 away from the feed port 11. The closed end of the empty tube 2 is spherical, and the connection between the closed end of the empty tube 2 and the elbow 1 has a smooth transition. The inner side of the elbow 1 is arc-shaped, and the empty tube 2 is arranged on the outer side of the elbow 1. Along the central axis direction of the feed port 11, the radius of the empty tube 2 first increases and then decreases. According to Bernoulli's principle, when the flow channel cross-section increases, the air flow velocity decreases. In this way, after the aluminum ash air flow enters the empty tube 2 from the feed port 11, the aluminum ash decelerates, thereby reducing the impact of the aluminum ash air flow on the inner wall of the empty tube 2.
[0027] The working principle of the present utility model:
[0028] The high-speed moving aluminum ash enters the elbow 1 from the feed port 11 and, driven by the high-pressure air flow, directly rushes into the empty tube 2 connected to the corner of the elbow 1. After the high-speed moving aluminum ash enters the empty tube 2, due to the gradually increasing inner diameter of the empty tube 2, the aluminum ash decelerates and accumulates in the empty tube 2. After the empty tube 2 is filled with aluminum ash, the subsequent aluminum ash entering the elbow 1 rubs against the aluminum ash at the corner and at the junction of the elbow 1 and the empty tube 2, and then turns and leaves from the discharge port 12 along the bending arc of the elbow 1. During this process, since the high-speed moving aluminum ash air flow does not directly contact the inner wall of the pipeline at the bend, it will not cause impact on the pipe wall at this place, thereby extending the service life of the conveying bend.
[0029] The above-described embodiments are only the preferred embodiments of the present utility model and do not limit the scope of implementation of the present utility model. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present utility model patent shall be included within the scope of the patent application of the present utility model.
Claims
1. An anti-leakage device for dust conveying bends in aluminum ash treatment, characterized in that, It includes an elbow pipe (1) provided with a feed inlet (11) and a discharge outlet (12). An angle is formed between the feed inlet (11) and the discharge outlet (12). Along the central axis direction of the feed inlet (11), a hollow pipe (2) is arranged on the elbow pipe (1). The hollow pipe (2) is a variable-diameter pipe, and the maximum pipe diameter of the hollow pipe (2) is larger than the pipe diameter of the elbow pipe (1). One end of the hollow pipe (2) is closed, and the other end is communicated with the elbow pipe (1).
2. The anti-leakage device for the dust conveying bend in the aluminum ash treatment according to claim 1, characterized in that, The angle between the feed inlet (11) and the discharge outlet (12) is not less than 90°.
3. The anti-leakage device for the dust conveying bend in the aluminum ash treatment according to claim 1, wherein, It further includes a wear-resistant layer (3) that wraps the hollow pipe (2) and part or all of the elbow pipe (1).
4. An anti-leakage device for dust conveying bends in aluminum ash treatment, according to claim 1, characterized in that, The elbow pipe (1), the hollow pipe (2), and the connection part between the elbow pipe (1) and the hollow pipe (2) are all arc-shaped.
5. The anti-leakage device for the dust conveying bend in the aluminum ash treatment according to claim 1, characterized in that, The closed end of the hollow pipe (2) is spherical, and the connection between the closed end of the hollow pipe (2) and the elbow pipe (1) has a smooth transition.
6. The anti-leakage device for the dust conveying bend in the aluminum ash treatment according to claim 1, characterized in that, Along the central axis direction of the feed inlet (11), the radius of the hollow pipe (2) first increases and then decreases.
7. An anti-leakage device for dust conveying bends in aluminum ash treatment, according to claim 1, characterized in that, The inner side of the elbow pipe (1) is arc-shaped, and the hollow pipe (2) is arranged on the outer side of the elbow pipe (1).