Scrap treatment device for pipeline machining

Abstract

The invention belongs to the field of pipeline machining, and particularly discloses a waste chip treatment device for pipeline machining, which comprises a wearable mask, a centrifugal fan capable of rotating forwards and backwards is arranged in the air bellow; the chip collecting suction nozzle is connected to the wearable mask through an angle-adjustable connecting piece; one end of the negative pressure communicating pipe is communicated with the air inlet of the air bellow, and the other end of the negative pressure communicating pipe penetrates through the wearable mask to be communicated with the scrap collecting suction nozzle; after the centrifugal fan rotates forwards and is started, negative pressure is generated at the chip collecting suction nozzle, and waste chips generated during machining can be absorbed and penetrate through the negative pressure communicating pipe to enter the air box. By means of the structural design, waste chips can be absorbed and collected when a pipeline opening is machined, the waste chips are prevented from entering a pipeline, and the operation safety and reliability of a pipeline system are guaranteed.

Description

Technical Field

[0001] This application belongs to the field of pipe processing, and more specifically, relates to a waste disposal device for pipe processing. Background Technology

[0002] In shipbuilding and repair, pipe opening processing (such as hole drilling, cutting, and beveling) is a common operational step, but this process generates a large amount of metal or non-metal waste. Due to the high-speed rotation of the cutting tools or the cutting force during processing, these wastes often have a high initial velocity, which not only causes them to scatter near the openings but also makes them more likely to splash and migrate along the pipe walls into the depths of the piping system, entering the interior of the main pipeline and even branch pipelines. These wastes that have entered the depths of the pipeline are prone to accumulating at bends, valves, filters, or low-flow-rate areas, forming local blockages or contaminant accumulations, seriously affecting the cleanliness of the piping system and the performance of media flow. In subsequent pipeline cleaning processes, due to the wide distribution of wastes, their hidden attachment locations, and the varying degrees of loose or dense accumulation, traditional flushing and purging methods are insufficient to completely remove them. Repeated flushing, segmented disassembly, or the use of specialized equipment for cleaning are often required, resulting in low cleaning efficiency, extended working hours, increased costs, and the risk of residual wastes, posing a potential threat to the operational safety and reliability of the ship's piping system. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this application provides a waste chip treatment device for pipe processing, which aims to solve the problem that waste chips generated during pipe opening processing enter the pipe and thus affect the operational safety and reliability of the pipe system.

[0004] This application provides a waste chip treatment device for pipe processing, specifically comprising: Wearable face mask; The bellows contains a centrifugal fan that can run in both forward and reverse directions. The dust collection nozzle is connected to the wearable mask via an angle-adjustable connector; The negative pressure connecting pipe has one end connected to the air inlet of the air box, and the other end passes through the wearable mask and is connected to the dust collection nozzle. After the centrifugal fan starts rotating in the forward direction, a negative pressure is generated at the chip collection nozzle, which can absorb the waste chips generated during processing and make them pass through the negative pressure connecting pipe into the air box.

[0005] Compared with the prior art, the above-described technical solution conceived in this application allows for convenient simultaneous operation of the chip collection nozzle by the worker wearing a wearable mask, as the nozzle is connected to the mask. Furthermore, the chip collection nozzle is connected to the air box, which contains a centrifugal fan capable of reversing direction. When cutting pipe openings, the worker directs the chip collection nozzle towards the pipe opening, and the centrifugal fan's forward rotation creates negative pressure at the nozzle, directly absorbing the waste chips generated at the processing point. These chips are then collected into the air box via a negative pressure connecting pipe, effectively preventing waste chips from entering the pipe and ensuring the safe and reliable operation of the pipeline system.

[0006] As a further preferred embodiment, the angle-adjustable connector is any one of a corrugated metal hose, a universal joint, or a ball joint.

[0007] As a further preferred embodiment, one end of the chip collection nozzle is configured as a suction port facing the pipeline to be processed, and the other end is configured as an air outlet port communicating with the negative pressure connecting pipe, and the diameter of the chip collection nozzle gradually increases from the air outlet port to the suction port.

[0008] As a further preferred embodiment, a downwardly inclined baffle is provided at the air inlet of the air box, and the baffle is rotatably connected to the air box via a damping shaft.

[0009] As a further preferred embodiment, the inner wall of the wind box and the side of the baffle plate facing the air inlet of the wind box are both provided with rubber pads, and the rubber pads have a wavy structure.

[0010] As a further preferred embodiment, the wearable mask is provided with a rubber vibration isolation sleeve, the negative pressure connecting pipe passes through the rubber vibration isolation sleeve and connects with the chip collection nozzle, and the interior of the rubber vibration isolation sleeve is filled with shock-absorbing material.

[0011] As a further preferred embodiment, the air box has a chip collection chamber inside, and the air box has a cleaning port that communicates with the chip collection chamber. A filter screen is detachably installed at the cleaning port.

[0012] As a further preferred embodiment, a wind speed sensor is provided at the air inlet of the wind box, and an audible and visual alarm electrically connected to the wind speed sensor is provided on the wind box to trigger the audible and visual alarm when the wind speed is detected to be continuously lower than a set threshold.

[0013] As a further preferred embodiment, the air box is provided with a spiral buffer channel inside. One end of the spiral buffer channel is connected to the chip collection chamber, and the other end extends to the side of the air box to form a clearing interface. The clearing interface is plugged into and adapted to the chip collection nozzle. A one-way valve is provided at the connection between the spiral buffer channel and the chip collection chamber. When the audible and visual alarm is triggered, the chip collection nozzle is plugged into the clearing interface and the centrifugal fan is reversed and started to clear the blockage.

[0014] As a further preferred embodiment, the bellows is provided with an adjustable shoulder strap.

[0015] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages: 1. This application integrates an adjustable-angle chip collection nozzle into a wearable mask and connects it to an air box equipped with a centrifugal fan, enabling operators to absorb waste chips in real time and in situ while processing pipe openings. This effectively prevents waste chips from splashing or falling into the pipes, avoiding blockages or damage to the pipeline system. Furthermore, it improves operational safety and cleanliness, fundamentally ensuring the operational safety and long-term reliability of the system after pipe processing.

[0016] 2. This application, by installing a baffle plate at the air inlet of the air box, can block and buffer the metal waste shavings that are sucked in at high speed. When the waste shavings enter the air box, they first hit the baffle plate, which effectively avoids the metal waste shavings directly and at high speed impacting the inner wall of the air box, thereby significantly reducing the risk of the inner wall of the air box being cut or damaged by impact, and helping to extend the service life of the air box.

[0017] 3. This application achieves real-time monitoring and early warning of pipeline blockage by setting up a wind speed sensor and an audible and visual alarm. When the negative pressure connecting pipe is blocked, causing the wind speed to drop, the audible and visual alarm can issue an alarm in time. Utilizing the characteristic that the centrifugal fan can rotate in both directions, the chip collection nozzle can be switched to the unblocking interface and the fan can be started to rotate in reverse. The reverse airflow can blow the blockage into the chip collection chamber along the spiral buffer channel, thereby efficiently completing the unblocking operation and quickly restoring the waste chip absorption capacity of the negative pressure connecting pipe.

[0018] 4. By installing an adjustable shoulder strap on the bellows, workers can carry the bellows stably on their backs, thus completely freeing up the limited ground and operating space in the work area. This avoids the space occupation problem of traditional fixed or portable collection devices and significantly improves the convenience and efficiency of construction in complex or narrow environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the waste disposal device provided in the embodiments of this application; Figure 2This is a side view of the bellows structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the bellows provided in an embodiment of this application.

[0020] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1. Wearable face mask; 101. Rubber vibration isolation sleeve; 2. Air box; 201. Adjustable shoulder strap; 202. Chip collection chamber; 203. Cleaning port; 204. Unblocking interface; 3. Centrifugal fan; 4. Chip collection nozzle; 401. Suction port; 402. Air outlet port; 5. Negative pressure connecting pipe; 6. Wind baffle; 601. Damping shaft; 602. Rubber pad; 7. Filter screen; 8. Wind speed sensor; 9. Audible and visual alarm; 10. Spiral buffer channel; 11. One-way valve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] Reference Figures 1-3 The present application discloses a waste chip treatment device for pipeline processing, which includes a wearable mask 1, a bellows 2, a centrifugal fan 3, a chip collection nozzle 4, and a negative pressure connecting pipe 5.

[0023] The wearable face mask 1 is worn by operators during pipe opening operations, primarily for facial and respiratory protection. The airbox 2 serves as a container for collecting and temporarily storing waste materials. A centrifugal fan 3 is fixedly installed inside the airbox 2 and has both forward and reverse rotation operating modes. The chip collection nozzle 4 is installed on the front or side of the wearable face mask 1 via an adjustable connector, allowing the nozzle's orientation to be flexibly adjusted according to the processing position. One end of the negative pressure connecting pipe 5 is connected to the air inlet of the airbox 2, and the other end passes through a pre-set through-hole on the wearable face mask 1, connecting to the chip collection nozzle 4 via a quick connector, forming a closed suction path from the nozzle to the airbox 2.

[0024] During pipe opening processing, the operator wears a wearable mask 1 and aligns the chip collection nozzle 4 with the processing point. Then, the centrifugal fan 3 is started and rotated forward, creating a stable negative pressure suction at the port of the chip collection nozzle 4. Metal or non-metallic waste generated during processing is promptly sucked into the chip collection nozzle 4 and transported through the negative pressure connecting pipe 5 to the inside of the air box 2 for centralized collection. This process achieves in-situ, real-time removal of waste, effectively preventing waste from scattering or falling into the pipe, thus avoiding pipe blockage, system wear, or operational failures caused by residual waste. It significantly improves the cleanliness, operational safety, and long-term reliability of the system after pipe processing.

[0025] In this embodiment, a dust collection chamber 202 is formed inside the bellows 2 to collect and temporarily store the inhaled dust. A cleaning port 203 communicating with the dust collection chamber 202 is provided on the side wall of the bellows 2 to facilitate the periodic removal of accumulated dust. To prevent fine dust from escaping during collection and to maintain stable airflow, a filter screen 7 is detachably installed at the cleaning port 203. Specifically, in a preferred embodiment, the outer wall of the bellows 2 has parallel upper and lower sliding grooves on the upper and lower sides of the cleaning port 203, respectively. The filter screen 7 has a rectangular frame structure, and its upper and lower edges slide in conjunction with the upper and lower sliding grooves, respectively, to realize the lateral insertion and removal of the filter screen 7. This sliding design makes the cleaning and replacement of the filter screen 7 simpler and faster.

[0026] Furthermore, to enhance the mobility and portability of the device in complex or confined working environments, the outer shell of the bellows 2 is further equipped with an adjustable shoulder strap 201. The adjustable shoulder strap 201 is constructed similarly to the shoulder straps of a backpack, comprising two shoulder straps of moderate width lined with soft padding, and its overall length can be flexibly adjusted via a length adjustment buckle. Operators can use the adjustable shoulder strap 201 to stably and comfortably carry the bellows 2 on their backs, thereby freeing their hands and minimizing the device's footprint in limited working spaces, ensuring flexible operation during pipeline processing.

[0027] To adapt to the complex and varied working positions and angles in pipe processing and achieve efficient and precise chip removal, in this embodiment, the angle-adjustable connector is any one of a corrugated metal hose, a universal joint, or a ball joint, or a combination thereof. The corrugated metal hose itself is flexible and can be bent manually while maintaining its shape, achieving stepless angle adjustment and position fixation over a wide range. The universal joint or ball joint, through its internal hinge or spherical fit structure, allows for flexible rotation and rapid positioning of the chip suction nozzle 4 in multiple degrees of freedom. This structural design allows operators wearing masks to adjust and fix the chip suction nozzle 4 to the optimal suction position with only one hand, without interrupting processing or frequently adjusting body posture, greatly improving operational convenience and work efficiency.

[0028] To further optimize airflow and improve the chip collection nozzle 4's chip absorption efficiency, one end of the chip collection nozzle 4 is configured as an intake port 401 facing the pipeline to be processed. The intake port 401 has a circular or elliptical opening. The other end is configured as an outlet port 402 connected to the negative pressure connecting pipe 5, and is sealed to the negative pressure connecting pipe 5 via a quick connector. The diameter of the chip collection nozzle 4 gradually increases from the outlet port 402 towards the intake port 401, forming a gradually expanding inner cavity, with the flow cross-sectional area gradually increasing along the airflow direction. A wider and more stable low-pressure area is formed near the intake port 401, which can effectively guide a larger range of splashed chips to the central flow channel of the nozzle. At the same time, the smoothly expanding inner wall helps the intake airflow to be integrated and pre-accelerated before entering the negative pressure connecting pipe 5, reducing eddies and energy loss caused by abrupt changes in cross-section, thereby achieving stronger initial suction and a longer effective suction distance under the same fan power.

[0029] To prevent high-speed, sharp metal shavings generated during pipe opening processing from impacting or scratching the inner wall of the air box 2 during its intake process, thus avoiding permanent damage or reduced service life, this embodiment employs a specialized buffering and protective design for the inner surface of the air box 2. Specifically, an inner lining layer made of elastic energy-absorbing material is attached or laid; in a preferred embodiment, this lining layer is a 2mm thick rubber pad 602. The rubber pad 602 not only provides cushioning but also reduces noise inside the air box 2. To maximize its cushioning, noise reduction, and guiding functions, the rubber pad 602 is designed with a wavy structure. Furthermore, the grooves of the rubber pad 602 are vertically oriented to prevent shavings from accumulating in the grooves.

[0030] To further reduce the initial kinetic energy of waste entering the air box 2 and strengthen the protection of core components, in this embodiment, a downward-sloping baffle 6 is provided at the air inlet of the air box 2. The top of the baffle 6 is rotatably connected to the air box 2 via a damping shaft 601. The damping shaft 601 provides moderate rotational resistance, allowing the baffle 6 to swing freely within a certain angle range and remain suspended, thereby adapting to wind pressure at different flow velocities. In the non-working state, the baffle 6 maintains a downward-sloping posture under its own weight, with its surface forming a certain angle with the vertical direction, causing the inhaled airflow and waste flow to immediately change direction at the inlet, impacting the baffle surface and achieving initial kinetic energy dissipation.

[0031] To further enhance the buffering, noise reduction, and airflow guiding functions of the wind deflector 6, a corrugated rubber pad 602 is also fitted onto its side facing the air inlet (i.e., the windward side). The corrugated grooves on the surface of this rubber pad 602 are horizontal. When high-speed debris impacts the horizontal corrugations vertically, the impact force is absorbed by the elastic deformation of the rubber, while the corrugated structure disperses the impact energy horizontally, preventing concentrated point impacts. The horizontal grooves significantly turbulent and segment the vertically flowing airflow, effectively reducing its speed and making it smoother before entering the debris collection chamber 202. Simultaneously, friction is generated as the airflow flows between the corrugations, further dissipating its kinetic energy. After being buffered and slowed, the debris, having lost sufficient kinetic energy, is more likely to slide down the inclined surface of the wind deflector 6 due to gravity, falling directly into the bottom of the debris collection chamber 202, reducing the possibility of it suspending or re-flying in the upper space of the wind box 2.

[0032] In this embodiment, a wind speed sensor 8 is fixedly installed at the air inlet of the air box 2, which can monitor the airflow speed at the air inlet of the air box 2 in real time. An audible and visual alarm 9 is fixedly installed on the outside of the air box 2. The wind speed sensor 8 is electrically connected to the audible and visual alarm 9. When the wind speed sensor 8 detects that the wind speed is continuously lower than the set threshold, it determines that the negative pressure connecting pipe 5 is abnormally blocked, and triggers the audible and visual alarm 9. To achieve rapid unblocking of the negative pressure connecting pipe 5, a spiral buffer channel 10 is fixedly installed inside the air box 2. One end of the spiral buffer channel 10 is connected to the chip collection chamber 202, and the other end extends to the side of the air box 2 to form an unblocking interface 204. The unblocking interface 204 is plugged into and matched with the chip collection nozzle 4. A one-way valve 11 is provided at the connection between the spiral buffer channel 10 and the chip collection chamber 202. When the audible and visual alarm 9 is triggered, the operator removes the wearable mask 1, inserts the chip collection nozzle 4 into the unblocking interface 204, and starts the centrifugal fan 3 in reverse. The airflow flows outward along the negative pressure connecting pipe 5, and the waste chips blocked inside the negative pressure connecting pipe 5 are transported to the spiral buffer channel 10 to enter the chip collection chamber 202, thereby completing the unblocking of the negative pressure connecting pipe 5.

[0033] To eliminate or reduce the impact of airflow pulsation, fan vibration, and potential material impact on the negative pressure connecting pipe 5 during waste absorption, a rubber vibration isolation sleeve 101 is fixedly installed on the wearable mask 1 at the position where the negative pressure connecting pipe 5 passes through. This sleeve serves as a flexible transition and vibration isolation interface between the wearable mask 1 and the negative pressure connecting pipe 5. The rubber vibration isolation sleeve 101 is made of a highly elastic rubber material (such as silicone or nitrile rubber), and its outer side has a flange or snap ring structure, which securely fixes it to the opening of the wearable mask 1 through mechanical snaps, adhesives, or interference fits. The rubber vibration isolation sleeve 101 has an internal cavity filled with a high-performance damping material, such as closed-cell silicone foam, viscoelastic polymer gel, or fine elastic particles. The negative pressure connecting pipe 5 is connected to the rubber vibration isolation sleeve 101 and the chip collection nozzle 4, ensuring that there is appropriate flexible contact or small gap fit between the negative pressure connecting pipe 5 and the inner wall of the rubber vibration isolation sleeve 101.

[0034] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0035] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A waste chip treatment device for pipe processing, characterized in that, include: Wearable face mask (1); The bellows (2) is equipped with a centrifugal fan (3) that can run in both directions. The dust collection nozzle (4) is connected to the wearable mask (1) via an angle-adjustable connector; The negative pressure connecting pipe (5) is connected at one end to the air inlet of the air box (2), and at the other end passes through the wearable mask (1) and is connected to the chip collection nozzle (4). After the centrifugal fan (3) starts rotating in the forward direction, a negative pressure is generated at the chip collection nozzle (4), which can absorb the waste chips generated during processing and make them pass through the negative pressure connecting pipe (5) into the air box (2).

2. The waste chip treatment device for pipe processing as described in claim 1, characterized in that, The angle-adjustable connector is any one of a corrugated metal hose, a universal joint, or a ball joint.

3. The waste chip treatment device for pipe processing as described in claim 1, characterized in that, One end of the chip collection nozzle (4) is configured as a suction port (401) facing the pipeline to be processed, and the other end is configured as an air outlet port (402) connected to the negative pressure connecting pipe (5). The diameter of the chip collection nozzle (4) gradually increases from the air outlet port (402) to the suction port (401).

4. The waste chip treatment device for pipeline processing as described in claim 1, characterized in that, An inclined downward wind baffle (6) is provided at the air inlet of the air box (2), and the wind baffle (6) is rotatably connected to the air box (2) through a damping shaft (601).

5. A waste chip treatment device for pipeline processing as described in claim 4, characterized in that, Rubber pads (602) are provided on the inner wall of the wind box (2) and on the side of the wind baffle (6) facing the air inlet of the wind box (2). The rubber pads (602) have a wavy structure.

6. The waste chip treatment device for pipe processing as described in claim 1, characterized in that, The wearable mask (1) is provided with a rubber vibration isolation sleeve (101), the negative pressure connecting pipe (5) passes through the rubber vibration isolation sleeve (101) and is connected to the chip collection nozzle (4), and the inside of the rubber vibration isolation sleeve (101) is filled with shock-absorbing material.

7. The waste chip treatment device for pipe processing as described in claim 1, characterized in that, The air box (2) is provided with a chip collection chamber (202) inside. The air box (2) is provided with a cleaning port (203) that communicates with the chip collection chamber (202). A filter screen (7) is detachably provided at the cleaning port (203).

8. The waste chip treatment device for pipeline processing as described in claim 7, characterized in that, A wind speed sensor (8) is provided at the air inlet of the wind box (2), and an audible and visual alarm (9) electrically connected to the wind speed sensor (8) is provided on the wind box (2) to trigger the audible and visual alarm (9) when the wind speed is detected to be continuously lower than the set threshold.

9. A waste chip treatment device for pipe processing as described in claim 8, characterized in that, The bellows (2) is provided with a spiral buffer channel (10). One end of the spiral buffer channel (10) is connected to the chip collection chamber (202), and the other end extends to the side of the bellows (2) to form a blockage clearing interface (204). The blockage clearing interface (204) is plugged into the chip collection nozzle (4). A one-way valve (11) is provided at the connection between the spiral buffer channel (10) and the chip collection chamber (202). When the audible and visual alarm (9) is triggered, the chip collection nozzle (4) is plugged into the blockage clearing interface (204) and the centrifugal fan (3) is reversed and started to clear the blockage.

10. A waste chip treatment device for pipe processing as described in claim 1, characterized in that, The bellows (2) is equipped with an adjustable shoulder strap (201).

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