A reinforced wear-resistant elbow for conveying powder materials with thickness monitoring

Abstract

This utility model relates to the technical field of powder material conveying equipment, specifically a reinforced wear-resistant elbow for powder material conveying with thickness monitoring. It includes a feed pipe, a tapered expansion pipe, a guide pipe, and a blind-end accumulation pipe connected in sequence. The blind-end accumulation pipe has a blind-end cavity inside. A discharge pipe is located below the guide pipe on the side of the blind-end accumulation pipe. Each of the tapered expansion pipe, guide pipe, blind-end accumulation pipe, and discharge pipe has an inner lining layer, an intermediate layer, and an outer shell layer from the inside out. Thickness sensor modules are installed on each of the tapered expansion pipe, guide pipe, blind-end accumulation pipe, and discharge pipe. This wear-resistant elbow uses a three-layer structure of a ceramic inner lining layer, an alloy intermediate layer, and a steel outer shell, along with thickness sensor modules embedded on the outer bend side, inner arc side, and flange connection. This enables real-time monitoring of the wear degree of the wear-resistant elbow, predicts equipment lifespan, ensures equipment safety, and improves the wear resistance and protection of the elbow.

Description

Technical Field

[0001] This utility model relates to the technical field of powder material conveying equipment, specifically a reinforced wear-resistant elbow for conveying powder materials with thickness monitoring. Background Technology

[0002] In existing technologies, wear-resistant elbows often employ ceramic liners, double-layer protective structures, or alloy materials to enhance wear resistance. However, they lack real-time monitoring capabilities for wear levels, making it impossible to predict equipment lifespan and potentially leading to sudden leaks or shutdowns. Existing technologies reduce impact wear through expansion tube designs and achieve self-repair through outer tube interception sleeves, but neither involves thickness monitoring technology. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a reinforced wear-resistant elbow with thickness monitoring for conveying powder materials, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a reinforced wear-resistant elbow for conveying powder materials with thickness monitoring, comprising a feed pipe, a tapered expansion pipe, a guide pipe, and a blind end accumulation pipe connected in sequence. The blind end accumulation pipe has a blind end cavity inside. The guide pipe is located below the blind end accumulation pipe and has an outlet pipe. The tapered expansion pipe, guide pipe, blind end accumulation pipe, and outlet pipe are all provided with an inner lining layer, an intermediate layer, and an outer shell layer from the inside out. A thickness sensor module is provided on the tapered expansion pipe, guide pipe, blind end accumulation pipe, and outlet pipe.

[0005] Preferably, the inner lining is a ceramic lining, which is prepared by centrifugal casting process, with a thickness ≥10mm and a surface roughness Ra≤0.8μm.

[0006] Preferably, the intermediate layer is made of high-chromium alloy steel, which is prepared by casting-rolling-push composite forming process, with a hardness of HRC≥56 and a thickness of 8-12mm. It is bonded to the inner lining layer by hot melt cladding process, with a bonding strength of ≥15MPa.

[0007] Preferably, the outer shell is made of carbon steel with a thickness of ≥6mm, and the side surface of the outer shell is provided with an embedded sensor mounting groove and a sealing protective cover.

[0008] Preferably, the cone angle of the tapered expansion tube is 15°-30°, the length is ≥300mm, the end with the smaller inner diameter of the tapered expansion tube is the same as the diameter of the feed tube, and the end with the larger inner diameter of the tapered expansion tube is the same as the diameter of the guide tube, and is 20%-30% larger than the diameter of the feed tube.

[0009] Preferably, the volume ratio of the blind end cavity is 10%-15%, and the inclination angle of the inner wall is 30°-45°.

[0010] Preferably, the thickness sensor module includes a thickness monitoring sensor and a data transmission controller, wherein the thickness monitoring sensor is a high-temperature resistant capacitive sensor.

[0011] Preferably, the tapered expansion tube and the guide tube are connected by a live flange, and the guide tube and the discharge tube are connected by a live flange.

[0012] Preferably, the thickness sensor module is located on the outer bend side, the inner arc side, and the flange connection.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This utility model discloses a reinforced wear-resistant elbow for conveying powder materials with thickness monitoring. The wear-resistant elbow adopts a three-layer structure consisting of a ceramic inner lining, an alloy intermediate layer, and a steel outer shell, and incorporates thickness sensor modules embedded in the outer bend side, inner arc side, and flange connection. This utility model enables real-time monitoring of the wear degree of the wear-resistant elbow, allowing for timely prediction of equipment lifespan, ensuring equipment safety, and simultaneously improving the wear resistance and protection of the elbow. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram, 1 is the feed pipe; 2 is the tapered expansion pipe; 3 is the guide pipe; 4 is the blind end accumulation pipe; 5 is the discharge pipe; 6 is the blind end cavity; 7 is the outer shell layer; 8 is the intermediate layer; 9 is the inner liner layer; and 10 is the thickness sensor module. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] The attached figure shows a specific embodiment of this utility model. This embodiment aims to provide a reinforced wear-resistant elbow for conveying powder materials with thickness monitoring, including a feed pipe 1, a tapered expansion pipe 2, a guide pipe 3, and a blind-end accumulation pipe 4 connected in sequence. The feed pipe 1 is used to guide the entry of powder materials. The tapered expansion pipe 2 is used to reduce the flow velocity by increasing the pipe diameter, so that the material flow velocity is reduced to below 15m / s, which can effectively reduce the impact of materials on the outside of the elbow. The guide pipe 3 is used to guide the flow direction of materials. The blind-end accumulation pipe 4 is provided with a blind-end cavity 6 on the outer arc side of the elbow, which utilizes the natural accumulation of powder to form a dynamic buffer layer, so that the wear area is transferred from the metal layer to the powder layer. The blind-end accumulation pipe 4 is provided with a blind-end cavity 6 inside, and the volume of the blind-end cavity 6 on the outer arc side accounts for 10%-15%. The material naturally accumulates to form a dynamic buffer layer, and the wear area shifts from the metal layer to the powder layer. The blind end structure, combined with flange angle deviation compensation of ±2°, adapts to complex installation conditions. The guide pipe 3 is located below the blind end accumulation pipe 4 and has a discharge pipe 5 to guide the outflow of powder material. The conical expansion pipe 2, guide pipe 3, blind end accumulation pipe 4, and discharge pipe 5 are all provided with an inner lining layer 9, an intermediate layer 8, and an outer shell layer 7 from the inside out. The three-layer structure can increase the wear resistance of the equipment and extend its service life. The conical expansion pipe 2, guide pipe 3, blind end accumulation pipe 4, and discharge pipe 5 are all equipped with thickness sensor modules 10 to monitor the usage of the equipment, predict its service life, and ensure safe use.

[0021] To further reduce powder friction resistance and increase wear resistance, the inner liner 9 is made of ceramic. The ceramic layer is prepared by centrifugal casting process, with a thickness ≥10mm and a surface roughness Ra≤0.8μm7.

[0022] To further absorb the impact energy of the material, the intermediate layer 8 is made of high-chromium alloy steel. The high-chromium alloy steel layer is prepared by casting, rolling and pushing composite molding process, with a hardness of HRC≥56 and a thickness of 8-12mm. It is bonded to the inner lining layer 9 by hot melt cladding process, with a bonding strength of ≥15MPa.

[0023] To further ensure the safe use of the equipment and prevent the thickness sensor module 10 from being contaminated by dust, the outer shell 7 is made of carbon steel with a thickness of ≥6mm. The side surface of the outer shell 7 is provided with an embedded sensor mounting groove and a sealed protective cover.

[0024] To further reduce the material flow rate and decrease the impact of the material on the outside of the elbow, the cone angle of the tapered expansion tube 2 is set to 15°-30°, and the length is ≥300mm. The end of the tapered expansion tube 2 with a smaller inner diameter is the same as the diameter of the feed tube 1, and the end of the tapered expansion tube 2 with a larger inner diameter is the same as the diameter of the guide tube 3, and is 20%-30% larger than the diameter of the feed tube 1.

[0025] In order to better form a dynamic buffer layer and reduce wear, the volume ratio of the blind end cavity 6 is 10%-15%, and the inner wall tilt angle is 30°-45°.

[0026] To better monitor the equipment, the thickness sensor module 10 includes a thickness monitoring sensor and a data transmission controller. The thickness monitoring sensor uses a high-temperature resistant capacitive sensor.

[0027] To support quick disassembly and replacement of worn sections of the equipment, a live flange is used to connect the tapered expansion tube 2 and the guide tube 3, and a live flange is used to connect the guide tube 3 and the discharge tube 5.

[0028] In order to more accurately monitor the usage of the equipment, predict its service life, and ensure its safe use, the thickness sensor module 10 needs to cover the main wear areas. Therefore, the thickness sensor module 10 is set on the outer bend side, the inner arc side, and the flange connection.

[0029] The thickness sensor module 10 incorporates a machine learning algorithm to predict the remaining lifespan based on historical data, with an error rate of ≤5%. It collects data every 30 minutes and generates a wear trend report through the data transmission controller. The thickness sensor module 10 is equipped with early warning logic, specifically: a first-level early warning is triggered when the thickness of the inner liner layer 9 is ≤3mm, and a second-level shutdown command is triggered when the thickness of the intermediate layer 8 is ≤50% of the initial value. The maintenance plan prioritizes replacing modules with a wear rate >80%.

[0030] The usage process and working principle of this utility model are as follows: The material enters the equipment from the feed pipe 1, and the flow rate is reduced after passing through the conical expansion pipe 2. Then, it passes through the guide pipe 3 and the blind end accumulation pipe 4, forming a material buffer layer in the blind end cavity 6. This ensures that the material entering later will only impact the material buffer layer before entering the discharge pipe 5. During the operation of the equipment, the thickness sensor module 10 continuously monitors the main wear areas to ensure the equipment's condition and enable it to operate safely for a long period of time.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A reinforced wear-resistant elbow for conveying powder materials with thickness monitoring, characterized in that: The device includes a feed pipe (1), a tapered expansion pipe (2), a guide pipe (3), and a blind end accumulation pipe (4) connected in sequence. The blind end accumulation pipe (4) has a blind end cavity (6) inside. The guide pipe (3) is located below the blind end accumulation pipe (4) and has an outlet pipe (5). The tapered expansion pipe (2), the guide pipe (3), the blind end accumulation pipe (4), and the outlet pipe (5) are all provided with an inner lining layer (9), an intermediate layer (8), and an outer shell layer (7) from the inside out. The tapered expansion pipe (2), the guide pipe (3), the blind end accumulation pipe (4), and the outlet pipe (5) are all provided with a thickness sensor module (10).

2. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The inner lining layer (9) is a ceramic inner lining layer, which is prepared by centrifugal casting process, with a thickness ≥10mm and a surface roughness Ra≤0.8μm7.

3. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The intermediate layer (8) is made of high chromium alloy steel. The high chromium alloy steel layer is prepared by casting, rolling and pushing composite molding process. The hardness is HRC≥56 and the thickness is 8-12mm. It is bonded to the inner lining layer (9) by hot melt cladding process. The bonding strength is ≥15MPa.

4. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The outer shell (7) is made of carbon steel with a thickness of ≥6mm. The side surface of the outer shell (7) is provided with an embedded sensor mounting groove and a sealing protective cover.

5. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The cone angle of the tapered expansion tube (2) is 15°-30° and the length is ≥300mm. The smaller inner diameter end of the tapered expansion tube (2) is the same as the diameter of the feed tube (1), and the larger inner diameter end of the tapered expansion tube (2) is the same as the diameter of the guide tube (3), and is 20%-30% larger than the diameter of the feed tube (1).

6. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The volume ratio of the blind end cavity (6) is 10%-15%, and the inclination angle of the inner wall is 30°-45°.

7. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The thickness sensor module (10) includes a thickness monitoring sensor and a data transmission controller. The thickness monitoring sensor is a high-temperature resistant capacitive sensor.

8. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The tapered expansion tube (2) and the guide tube (3) are connected by a live flange, and the guide tube (3) and the discharge tube (5) are connected by a live flange.

9. The reinforced wear-resistant elbow with thickness monitoring for conveying powder materials according to claim 1, characterized in that: The thickness sensor module (10) is located on the outer bend side, the inner arc side, and the flange connection.

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