Anti-blocking elbow pipe head structure

By designing an anti-clogging bend head structure and utilizing a pulse-type air-filling component to improve material accumulation, the problem of easy clogging at bend heads is solved, achieving stable conveying and efficient anti-clogging effect.

CN223737162UActive Publication Date: 2025-12-30FUJIAN HUADIAN SHAOWU CO LTD
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Patent Information

Application Number
CN202520015180.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2025-12-30
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

In negative pressure suction equipment, the bend head area is prone to blockage due to material accumulation, especially in low temperature environments where the water film method fails, causing the pipeline to lose its suction function.

Method used

It adopts an anti-clogging bend head structure, combined with a feed connection plate, a discharge connection plate, a suction pipe bend, and a pulse inflation component. It improves material accumulation, reduces pressure loss, and enhances flow stability through intermittent airflow pulses.

Benefits of technology

It effectively prevents blockage at the bend head, optimizes material conveying efficiency, reduces cleaning and maintenance frequency, and reduces workload.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-blocking elbow pipe head structure which comprises a feeding connecting plate, a discharging connecting plate, a material suction pipe elbow and a pulse type inflation assembly. One end of the feeding connecting plate is connected with one end of the discharging connecting plate, the feeding connecting plate is provided with a feeding port, the discharging connecting plate is provided with a discharging port, the feeding end of the suction pipe elbow is communicated with the feeding port, and the discharging end of the suction pipe elbow is communicated with the discharging port; an inflation pipe is arranged at the top of the material suction pipe elbow, and an air outlet of the pulse type inflation assembly is communicated with the inflation pipe. The anti-blocking elbow pipe head structure comprises a material suction pipe elbow and a pulse type air inflation assembly, intermittent air flow pulses are provided through the pulse type air inflation assembly, the situation of material accumulation in the material suction pipe elbow is improved, pressure loss at the elbow pipe position is reduced, the flowing stability is enhanced, the pipeline blocking phenomenon is restrained, and the material conveying efficiency is optimized.
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Description

Technical Field

[0001] This utility model relates to the field of negative pressure suction equipment, and in particular to an anti-clogging bend head structure. Background Technology

[0002] Freight trains transport goods such as coal for extended periods. After unloading, residual materials such as coking coal and iron ore concentrate remain in the carriages, typically requiring a negative pressure system for collection. Because these residual materials are granular and contain moisture, they easily adhere to or accumulate on the pipe walls. When using negative pressure to suction wet, sticky coal or heavier materials like iron ore concentrate, if the pipe walls are not treated promptly, significant pressure loss at bends can cause material to continuously accumulate in the upper part of the bend, gradually leading to blockages. As air velocity increases, pressure loss intensifies, creating a vicious cycle that may ultimately cause the pipe to completely lose its suction function, rendering it unable to effectively transport coal or other materials.

[0003] The existing solution involves lining the pipe with a porous tube to form a water cavity. Water continuously seeps through the micropores, forming a water film on the inner wall of the pipe, preventing direct contact between the material and the pipe. However, in winter in northern my country, temperatures typically drop below 0°C, causing the water to freeze directly. Therefore, this water film method is not effective in preventing pipe blockages during winter in northern regions. Utility Model Content

[0004] The purpose of this invention is to propose an anti-clogging bend head structure to solve the problem that material tends to accumulate in the upper part of the bend, leading to pipe blockage.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides an anti-clogging elbow head structure, including a feeding connection plate, a discharging connection plate, a suction pipe elbow, and a pulse inflation assembly;

[0007] One end of the feeding connecting plate is connected to one end of the discharging connecting plate. The feeding connecting plate is provided with a feeding port, and the discharging connecting plate is provided with a discharging port. The feeding end of the suction pipe elbow is connected to the feeding port, and the discharging end of the suction pipe elbow is connected to the discharging port.

[0008] The top of the suction pipe bend is equipped with an inflation pipe, and the air outlet of the pulse inflation component is connected to the inflation pipe.

[0009] In the anti-clogging elbow structure, the suction pipe elbow includes an integrally formed first elbow section, a second elbow section, and a third elbow section, which are connected sequentially. The inflation pipe is disposed on the first elbow section. The first elbow section is connected to the discharge connecting plate and communicates with the discharge port. The third elbow section is connected to the feed connecting plate and communicates with the feed port.

[0010] In the anti-clogging bend head structure, the central axis of the second bend section is parallel to the central axis of the inflation pipe; the inflation pipe is connected to the end of the first bend section near the second bend section, and the air outlet of the inflation pipe faces the upper wall of the second bend section.

[0011] In the anti-clogging bend head structure, multiple ribs are spaced apart on the outer periphery of the third bend section. One end of each rib is connected to the side wall of the third bend section, and the other end of each rib is connected to the feed connection plate.

[0012] In the anti-clogging bend head structure, the pulse inflation assembly includes a pulse solenoid valve and an air tank. The air inlet of the pulse solenoid valve is connected to the air tank, and the air outlet of the pulse solenoid valve is connected to the inflation pipe.

[0013] In the anti-clogging bend head structure, the gas storage tank is provided with an air inlet.

[0014] In the anti-clogging elbow structure, both sides of the suction pipe elbow are provided with support angle plates. One side of the support angle plate is connected to the feed connection plate, and the other side of the support angle plate is connected to the discharge connection plate.

[0015] In the anti-clogging bend head structure, a support connecting plate is also provided between the two support corner plates. The two ends of the support connecting plate are respectively connected to the support corner plate on the corresponding side. The support connecting plate is located on the rear side of the suction pipe bend. The bottom of the support connecting plate is connected to the feeding connecting plate, and the bottom of the support connecting plate is provided with an avoidance notch, which is centrally located.

[0016] One of the technical solutions of this utility model can have the following beneficial effects:

[0017] The anti-clogging bend structure includes a suction pipe bend and a pulse-type inflation assembly. The pulse-type inflation assembly provides intermittent airflow pulses, which improves the material accumulation inside the suction pipe bend, reduces pressure loss at the bend, enhances flow stability, inhibits pipe blockage, and optimizes material conveying efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional view of one embodiment of the present invention;

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure on the other side of the embodiment;

[0021] In the attached diagram: 1. Feed connection plate; 2. Discharge connection plate; 3. Suction pipe elbow; 4. Pulse inflation assembly.

[0022] Supporting angle plate 11; supporting connecting plate 12; air inlet pipe 30; first bend pipe section 31, second bend pipe section 32, third bend pipe section 33; pulse solenoid valve 41, air storage tank 42;

[0023] 120mm clearance; 331mm rib; 421mm air intake. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please refer to Figures 1-3 This utility model provides an anti-clogging elbow head structure, including a feeding connection plate 1, a discharging connection plate 2, a suction pipe elbow 3, and a pulse inflation assembly 4;

[0029] One end of the feeding connecting plate 1 is connected to one end of the discharging connecting plate 2. The feeding connecting plate 1 is provided with a feeding port, and the discharging connecting plate 2 is provided with a discharging port. The feeding end of the suction pipe elbow 3 is connected to the feeding port, and the discharging end of the suction pipe elbow 3 is connected to the discharging port.

[0030] The top of the suction pipe bend 3 is provided with an inflation pipe 30, and the air outlet of the pulse inflation component 4 is connected to the inflation pipe 30.

[0031] The anti-clogging bend structure includes a suction pipe bend 3 and a pulse-type inflation component 4. The pulse-type inflation component 4 provides intermittent airflow pulses, which improves the material accumulation inside the suction pipe bend 3, reduces pressure loss at the bend, enhances flow stability, suppresses pipe blockage, and optimizes material conveying efficiency.

[0032] The suction pipe elbow 3 is connected to the extraction straight pipe 2 through the feed connection plate 1. At the same time, the suction pipe elbow 3 is connected to the external negative pressure suction system through the discharge connection plate 2. When the negative pressure suction system is working, it generates negative pressure, so that the material can enter the suction pipe elbow 3 from the extraction straight pipe 2, and then enter the external negative pressure suction system through the suction pipe elbow 3.

[0033] During negative pressure material extraction, the pulse-type air-filling component 4 provides intermittent airflow pulses that impact the material in the suction pipe bend 3. The material adhering to the pipe wall is continuously bombarded by the gas, which will peel it off from the pipe wall and prevent the suction pipe bend 3 from becoming blocked.

[0034] The negative pressure pipeline anti-clogging material structure is simple to manufacture and effectively prevents adhesion to the pipe wall of the suction pipe, reducing the number of disassembly, cleaning and maintenance, and reducing the workload of workers.

[0035] Specifically, the suction pipe elbow 3 includes an integrally formed first elbow section 31, second elbow section 32, and third elbow section 33, which are connected in sequence; the inflation pipe 30 is disposed on the first elbow section 31; the first elbow section 31 is connected to the discharge connecting plate 2 and communicates with the discharge port; the third elbow section 33 is connected to the feed connecting plate 1 and communicates with the feed port.

[0036] The suction pipe elbow 3 consists of three parts: a first bend section 31, a second bend section 32, and a third bend section 33. The internal cooperation of the first bend section 31, the second bend section 32, and the third bend section 33 forms a suction channel. The pulse-type air inflation component 4 injects high-pressure gas into the suction channel through the air inflation pipe 30 at preset times to flush out the material in the suction channel and prevent material accumulation or blockage of the pipe.

[0037] Preferably, the central axis of the second bend section 32 is parallel to the central axis of the inflation pipe 30; the inflation pipe 30 is connected to one end of the first bend section 31 near the second bend section 32, and the air outlet of the inflation pipe 30 faces the upper wall surface 321 of the second bend section 32.

[0038] In practical applications, materials such as coal are likely to accumulate on the upper wall 321 of the second bend section 32, that is, the area near the rear of the second bend section 32. With the above structure, the air outlet of the air inlet of the air pipe 30 is aimed at the area where material is prone to accumulate, which can more effectively disperse the accumulated material.

[0039] Preferably, the third bend section 33 is provided with a plurality of ribs 331 spaced apart on its outer periphery. One end of the ribs 331 is connected to the side wall of the third bend section 33, and the other end of the ribs 331 is connected to the feed connection plate 1.

[0040] The rib plate 331 adds additional support or reinforcement, which can effectively increase the strength of the third bend section 33 and prevent the third bend section 33 from bending or deforming excessively; moreover, it can also increase the seismic resistance of the structure and better absorb and disperse the vibration generated by the high-pressure gas introduced by the pulse inflation assembly 4.

[0041] Specifically, the pulse inflation assembly 4 includes a pulse solenoid valve 41 and an air storage tank 42. The air inlet of the pulse solenoid valve 41 is connected to the air storage tank 42, and the air outlet of the pulse solenoid valve 41 is connected to the inflation pipe 30.

[0042] The gas storage tank 42 is used to store high-pressure gas, while the pulse solenoid valve 41 generates a pulse signal through a fast-switching electromagnetic relay, which enables the valve to open rapidly at a predetermined time, allowing the gas in the gas storage tank 42 to be introduced into the suction pipe elbow 3 through the inflation pipe 30, thereby dispersing the material accumulated at the elbow and preventing the suction pipe elbow 3 from becoming blocked.

[0043] Specifically, the gas storage tank 42 is provided with an air inlet 421. Since the pulse solenoid valve 41 introduces high-pressure gas at regular intervals, when the high-pressure gas in the gas storage tank 42 is depleted, high-pressure gas can be introduced into the gas storage tank 42 through the air inlet 421 to replenish it.

[0044] Furthermore, both sides of the suction pipe elbow 3 are provided with support angle plates 11. One side of the support angle plate 11 is connected to the feed connection plate 1, and the other side of the support angle plate 11 is connected to the discharge connection plate 2.

[0045] The discharge connecting plate 2 has multiple connecting holes, which connect it to an external negative pressure device for fixation. The discharge port is connected to the air inlet of the external negative pressure device. The support angle plate 11 provides additional support to enhance the tensile, bending, and torsional resistance of the connection part, enabling the structure to withstand greater loads and improving the overall structural stability.

[0046] Furthermore, a support connecting plate 12 is provided between the two support corner plates 11. The two ends of the support connecting plate 12 are respectively connected to the support corner plate 11 on the corresponding side. The support connecting plate 12 is located on the rear side of the suction pipe elbow 3. The bottom of the support connecting plate 12 is connected to the feeding connecting plate 1, and the bottom of the support connecting plate 12 is provided with an avoidance notch 120, which is centrally located.

[0047] The supporting connecting plate 12 is connected to the supporting corner plates 11 at both ends, which can enhance the tensile, bending and torsional resistance between the supporting corner plates 11, so that the structure can withstand greater loads.

[0048] The clearance notch 120, in conjunction with the feed connection plate 1, provides a handheld part, allowing users to more easily lift, carry, or move the entire anti-clogging bend head structure, facilitating subsequent installation, disassembly, or maintenance.

[0049] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A plug-resistant elbow head structure, characterized by, The feeding connecting plate, the discharging connecting plate, the suction pipe elbow and the pulse type inflation assembly are included. One end of the feeding connecting plate is connected with one end of the discharging connecting plate, the feeding connecting plate is provided with a feeding port, the discharging connecting plate is provided with a discharging port, the feeding end of the suction pipe elbow is communicated with the feeding port, and the discharging end of the suction pipe elbow is communicated with the discharging port. The top of the suction pipe elbow is provided with an inflation pipe, and the gas outlet of the pulse type inflation assembly is communicated with the inflation pipe.

2. A bend head structure according to claim 1, wherein The suction pipe elbow includes integrally formed first, second and third elbow pipe sections which are communicated in sequence, the inflation pipe is arranged in the first elbow pipe section, the first elbow pipe section is connected with the discharging connecting plate and communicated with the discharging port, and the third elbow pipe section is connected with the feeding connecting plate and communicated with the feeding port.

3. A bend head structure according to claim 2, wherein The central axis of the second elbow pipe section is parallel to the central axis of the inflation pipe, the inflation pipe is connected to one end of the first elbow pipe section close to the second elbow pipe section, and the gas outlet of the inflation pipe faces the upper wall surface of the second elbow pipe section.

4. A bend head structure according to claim 2, wherein A plurality of rib plates are circumferentially arranged on the outer periphery of the third elbow pipe section, one end of each rib plate is connected with the side wall of the third elbow pipe section, and the other end of each rib plate is connected with the feeding connecting plate.

5. A bend head structure according to claim 1, wherein The pulse type inflation assembly includes a pulse electromagnetic valve and a gas storage tank, the gas inlet end of the pulse electromagnetic valve is communicated with the gas storage tank, and the gas outlet end of the pulse electromagnetic valve is communicated with the inflation pipe.

6. A bend head structure according to claim 5, wherein The gas storage tank is provided with a gas inlet port.

7. A bend head structure according to claim 1, wherein Supporting angle plates are arranged on both sides of the suction pipe elbow, one side of each supporting angle plate is connected with the feeding connecting plate, and the other side of each supporting angle plate is connected with the discharging connecting plate.

8. A bend head structure according to claim 7, wherein Supporting connecting plates are further arranged between the two supporting angle plates, both ends of each supporting connecting plate are connected with the supporting angle plates on the corresponding side, the supporting connecting plates are located at the back side of the suction pipe elbow, the bottom of each supporting connecting plate is connected with the feeding connecting plate, and the bottom of each supporting connecting plate is provided with an avoiding notch which is arranged in the middle.