Sludge guiding-out device for pipeline milling and diameter expanding

Abstract

The utility model relates to a sludge guide-out device for milling and expanding a pipeline, which comprises a cutterhead which is a rotatable disc; the device comprises a cutter head and a cutter, and further comprises a slag collecting body which is a device for collecting mud slag milled by the cutter, and the slag collecting body comprises a tray which is a disc body fixedly connected with the cutter head; the collecting arm is a hollow pipeline fixedly connected to the peripheral side of the slag collecting barrel, and one end of the collecting arm is communicated with the interior of the slag collecting barrel; the collecting claw is a component which is fixedly connected to one end of the collecting arm and is used for shoveling up the sludge; a collecting opening communicated with the interior of the collecting arm is formed in the side, close to or close to the collecting claw, of the collecting arm. And the slag pouring body is communicated with the slag collecting body and conveys the sludge to be far away from the cutter, and the device has the beneficial effects that the structure is simple, and the function of discharging waste by virtue of the collecting arm and the slag pouring body is realized only by utilizing the power of the cutter head.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline renewal in trenchless pipeline repair, in particular to a sludge discharge device for pipeline milling and diameter expansion. Background Art

[0002] Trenchless repair technology (TRE) utilizes various geotechnical drilling equipment and techniques, using guided and directional drilling methods, to lay, replace, and repair various underground pipelines with minimal surface excavation (generally referring to small excavations at entrances and exits). This new construction method does not hinder traffic, damage green spaces and vegetation, or disrupt the normal work and life of shops, hospitals, schools, or residents. It eliminates the disruption to residents' lives and the damage and adverse impacts of traditional excavation construction on transportation, the environment, and the foundations of surrounding buildings, resulting in high socioeconomic benefits. Trenchless repair technology includes the repair of small and medium-sized concrete pipe structures, which typically requires milling the interior of the damaged cement pipe to accommodate the updated metal pipe.

[0003] In the prior art, for small concrete pipe milling and expansion tunnel boring machines, common methods for removing slag include mud-water circulation. This requires a sealed space at the front of the machine head, which is relatively complex. Furthermore, the slurry pipe is typically small, and the concrete pipe to be milled often contains steel keels / strands, making it difficult to remove the milled and crushed steel. Furthermore, the equipment required for handling the waste slurry is relatively large. Another method is rear-screw slag removal, which also requires a sealed space at the front of the machine head. Furthermore, the screw passes through the interior of the tunnel boring machine, occupying a large amount of space in the main equipment and resulting in a cramped layout within the tunnel boring machine. Furthermore, a tunnel boring machine for pipe renewal disclosed in Chinese invention patent application publication number CN114060053A uses a screw to discharge slag forward, but the screw body is fixed to the main machine, and the intermediate screw shaft needs to be driven separately to remove slag. Furthermore, the front pipe of the conveying device requires separate support, which hinders the installation of personnel and the smooth advancement of equipment during pipeline repair. This makes it unsuitable for on-site repair, especially for the mechanical layout and operation of small and medium-diameter pipeline repair.

[0004] Therefore, there is an urgent need for a sludge removal device for pipe milling and diameter expansion that has low power dependence, simple equipment operation, and strong adaptability to complex environments. Summary of the Invention

[0005] In order to overcome the problems in the prior art of poor removal of milling slag, large space occupied by the rear spiral slag discharge, and complex prior art of the front spiral, the utility model designs a slag discharge device for pipe milling and diameter expansion, which does not require a separate power but utilizes the rotation of the cutter disc to drive the slag to be discharged forward.

[0006] The technical solution adopted by the utility model is: a sludge removal device for pipe milling and diameter expansion, comprising:

[0007] The cutter disc is a rotatable disc;

[0008] The cutter is a milling tool located on one side of the cutter disc and protruding from the cutter disc;

[0009] Also includes:

[0010] The slag collecting body is a device for collecting the mud residue produced by milling of the tool, and the slag collecting body comprises:

[0011] The tray is a tray body fixedly connected to the cutter disc;

[0012] The collecting arm is a hollow pipe fixedly connected to the circumference of the slag collecting bucket, and one end of the collecting arm is connected to the interior of the slag collecting bucket;

[0013] A collecting claw is a component fixedly connected to one end of the collecting arm and used to scoop up the mud residue;

[0014] The collecting arm is provided with a collecting port connected to the interior of the collecting arm on one side thereof close to or adjacent to the collecting claw;

[0015] as well as,

[0016] The slag dumping body is connected with the slag collecting body and transports the slag away from the cutting tool.

[0017] Furthermore, a first spiral blade is provided inside the slag collecting bucket, and the first spiral blade is fixedly connected to the cutter disc or the tray or the slag collecting bucket, and the sludge is transported away from the cutter disc by means of the rotation of the cutter disc.

[0018] Furthermore, the slag dumping body includes:

[0019] The second conveying section is a hollow barrel-shaped body, one end of which is fixedly connected to and communicates with the slag collecting bucket, and the other end of which discharges the sludge;

[0020] A third spiral blade is fixedly connected inside the second conveying section.

[0021] Further,

[0022] The first conveying section is also fixedly connected between the second conveying section and the slag collecting bucket.

[0023] The first conveying section is a hollow cone, the cone is fixedly connected to the slag collecting bucket, and the top of the cone is fixedly connected to the second conveying section;

[0024] A second spiral blade is fixedly connected inside the first conveying section.

[0025] Further,

[0026] One end of the second conveying section that discharges the sludge is fixedly connected to a slag blocking portion;

[0027] A gap is provided between the slag blocking portion and the second conveying section, so that the slag can fall by gravity without splashing.

[0028] Further,

[0029] The collecting arms are arranged in a straight line or in a spiral arrangement along the radial direction of the axis of the slag collecting bucket.

[0030] Further,

[0031] The collecting port is connected to the end of the collecting claw and has an obtuse angle with the axis of the collecting arm, so that the cross section of the collecting arm close to the collecting claw is larger than the cross section of the collecting arm close to the slag collecting bucket.

[0032] Further,

[0033] The collecting claw is a ribbed tooth-like structure, with the tooth tip facing the rotation direction of the cutter disc.

[0034] Further,

[0035] The tray is provided with a knife groove running through both sides.

[0036] The knife slot allows the knife to pass through and protrude from the tray.

[0037] Further,

[0038] The collecting arms are located between the cutters, and there are more than one collecting arms.

[0039] Compared with the prior art, the utility model has the following beneficial effects: the structure is simple, and only the power of the cutter head is used to realize the waste discharge function with the help of the collection arm and the slag dump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a front view of a specific embodiment of the utility model;

[0041] Figure 2 This is an axial view of the slag collecting body according to a specific embodiment of the present utility model;

[0042] Figure 3 This is an axial view of the slag pouring body according to a specific embodiment of the present utility model;

[0043] Figure 4 This is a schematic diagram of the rotary collection of slag bodies in a specific embodiment of the utility model;

[0044] Figure 5 This is a schematic diagram of the overall system operation of a specific embodiment of the utility model;

[0045] The annotations are:

[0046] 100-knife disc; 110-knife;

[0047] 200 - slag collecting body; 210 - tray; 211 - knife groove; 220 - slag collecting bucket; 221 - first spiral blade; 230 - collecting arm;

[0048] 231-collecting claw; 232-collecting port;

[0049] 300 - slag dumping body; 310 - first conveying section; 311 - second spiral blade; 320 - second conveying section; 321 - third spiral blade;

[0050] 330-slag blocking part. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0052] In order to overcome the problems of poor removal of milling slag in the prior art, large space occupied by the rear spiral slag discharge, and complex front spiral technology, the utility model designs a slag discharge device for pipe milling and diameter expansion that uses the rotation of the cutter head to drive the slag forward without using a separate power source. Figures 1 to 5 The technical solution of this specific embodiment is: a sludge removal device for pipe milling and diameter expansion, comprising:

[0053] The cutter head 100 is a rotatable disc; Figure 1 Generally, the cutter head 100 refers to the front rotating end of the tunnel boring machine.

[0054] The cutter 110 is a milling tool located on one side of the cutter head 100 and protruding from the cutter head 100;

[0055] Also includes:

[0056] The slag collecting body 200 is a device for collecting the slag produced by the milling of the tool 110. The function of the slag collecting body 200 is to collect the slag and discharge it centrally. Figure 1 、 Figure 2 and Figure 4The mud residue that needs to be stripped off is stripped off in situ by the tool 110. Since a certain amount of water is usually added to the working surface of the tool 110 to reduce resistance during the milling process, the medium after stripping is usually in a mud residue state and mixed with a certain amount of steel strands. The mud residue raised by the tool 110 will fall on the slag collecting body 200 or the lower part of the working surface under the action of gravity, so the height of the slag collecting bucket 220 is usually greater than or equal to the length of the tool 110 protruding from the cutter head 100.

[0057] The slag collecting body 200 includes:

[0058] The tray 210 is a tray body fixedly connected to the cutter head 100; Figure 1 , the connection method is generally bolt connection.

[0059] The collecting arm 230 is a hollow pipe fixedly connected to the side of the slag collecting bucket 220, and one end of the collecting arm 230 is connected to the interior of the slag collecting bucket 220;

[0060] The collecting claw 231 is fixedly connected to one end of the collecting arm 230 and is used to scoop up the mud residue;

[0061] The collecting arm 230 is provided with a collecting port 232 connected to the interior of the collecting arm 230 on one side thereof, close to or adjacent to the collecting claw 231; after the mud residue is stripped, the collecting arm 230 strips off the medium that has not been separated, and at the same time rolls up the soil from the bottom, thereby collecting the mud residue with the help of the rotational force.

[0062] as well as,

[0063] The slag dumping body 300 is connected to the slag collecting body 200 and transports the slag away from the tool 110 .

[0064] In some embodiments, the slag collecting bucket 220 is preferably provided with a first spiral blade 221, which is fixedly connected to the cutter head 100 or the tray 210 or the slag collecting bucket 220, and transports the slag away from the cutter head 100 by rotating the cutter head 100. Figure 2 The first spiral blade 221 rotates with the cutter head 100 , so the first spiral blade 221 is fixedly connected to the cutter head 100 or the tray 210 or the slag collecting bucket 220 , and the power transmission is achieved by means of the fixed connection.

[0065] In some embodiments, preferably, see FIG. Figure 3 , the slag dumping body 300 includes:

[0066] The second conveying section 320 is a hollow barrel-shaped body, one end of which is fixedly connected to and communicates with the slag collecting bucket 220, and the other end of which discharges the sludge;

[0067] The second conveying section 320 is fixedly connected to a third spiral blade 321. The slag collecting bucket 220 collects the slag, and the second conveying section 320 conveys the slag for external discharge.

[0068] Further,

[0069] The first conveying section 310 is also fixedly connected between the second conveying section 320 and the slag collecting bucket 220.

[0070] The first conveying section 310 is a hollow cone, the cone is lower than the slag collecting bucket 220 and is fixedly connected, and the top of the cone is fixedly connected to the second conveying section 320;

[0071] The first conveying section 310 is internally fixed with a second spiral blade 311. The cone-shaped body can reduce the motion of the entire conveying device to avoid a top-heavy situation, and can further concentrate the mud residue to achieve a continuous state of mud residue discharge.

[0072] In some embodiments, preferably,

[0073] The second conveying section 320 discharges the sludge at one end, and is fixedly connected to a slag blocking portion 330;

[0074] A gap is provided between the slag blocking portion 330 and the second conveying section 320 so that the slag can fall by gravity without splashing.

[0075] In other embodiments, see Figure 2 and Figure 4 ,

[0076] The collecting arms 230 are arranged linearly or spirally along the axial direction of the slag collecting bucket 220 .

[0077] Preferably, see Figure 2 ,

[0078] The collection port 232 is connected to the end of the collection claw 231 and forms an obtuse angle with the axis of the collection arm 230, so that the cross-section of the collection arm 230 on the side close to the collection claw 231 is larger than the cross-section on the side close to the slag collecting bucket 220. Generally speaking, the collection port 232 is provided with an inclined surface at the end of the collection arm 230. The inclined surface of the collection port opening can prevent the incoming sludge from accumulating at the end and then efficiently enter the sludge collecting bucket 220 through rotation.

[0079] In other embodiments, to improve the cleaning effect, please refer to Figure 2

[0080] The collecting claw 231 is a ribbed tooth-like structure, with the tooth tip facing the rotation direction of the cutter disc 100.

[0081] In other embodiments, to maintain the integrity of the device and the coordination of power transmission, please refer to Figure 2

[0082] The tray 210 is provided with a knife groove 211 that passes through both sides.

[0083] The knife groove 211 allows the knife 110 to pass through and protrude from the tray 210 .

[0084] In other embodiments, to improve the collection efficiency, please refer to Figure 2 ,

[0085] The collecting arms 230 are located between the cutting tools 110 , and there are more than one collecting arms 230 .

[0086] During specific operation: the slag collecting body 200 and the slag dumping body 300 are fixedly connected by means of bolts, and the slag collecting body 200 is fixedly connected to the cutter head 100. When the cutter head 100 rotates, it drives the slag collecting body 200 and the slag dumping body 300 to rotate. The cutter 110 grinds the slag off from the inner wall of the concrete pipe, expands the effective diameter of the pipe, and reserves space for the subsequent metal or other material pipes to enter. It will enter the collection port 232 under the rotation of the collecting arm 230, and enter the interior of the slag collecting body 200 under the action of gravity. Under the rotation of the first spiral blade 221, it is input outward into the slag dumping body 300. The slag dumping body 300 is provided with a third spiral blade 321 and a second spiral blade 311. Since the slag collecting body 200 and the slag dumping body 300 rotate synchronously, they cooperate to transport the slag to the outside of the device. Please refer to Figure 5 , an external discharge device is provided, such as a conveying trolley or a follow-up mud and water circulation system, to realize the discharge of mud residue. The above embodiment has a simple structure and only uses the power of the cutter head to realize the waste discharge function with the help of the collection arm and the slag dump.

[0087] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sludge removal device for pipe milling and diameter expansion, comprising: The cutter disc (100) is a rotatable disc; The cutter (110) is a milling tool located on one side of the cutter disc (100) and protruding from the cutter disc (100); It is characterized by further comprising: The slag collecting body (200) is a device for collecting mud residue produced by milling of the tool (110), and the slag collecting body (200) comprises: A tray (210) is a tray body fixedly connected to the cutter disc (100); The collecting arm (230) is a hollow pipe fixedly connected to the circumference of the slag collecting bucket (220), and one end of the collecting arm (230) is in communication with the interior of the slag collecting bucket (220); A collecting claw (231) is a component fixedly connected to one end of the collecting arm (230) and used to scoop up the sludge; A collecting port (232) communicating with the interior of the collecting arm (230) is provided on one side of the collecting arm (230) close to or adjacent to the collecting claw (231); as well as, The slag dumping body (300) is connected to the slag collecting body (200) and transports the slag away from the cutting tool (110).

2. The sludge removal device for pipe milling and diameter expansion according to claim 1, characterized in that: A first spiral blade (221) is provided inside the slag collecting bucket (220), and the first spiral blade (221) is fixedly connected to the cutter disc (100) or the tray (210) or the slag collecting bucket (220), and is used to rotate the cutter disc (100) to transport the slag away from the cutter disc (100).

3. The sludge removal device for pipe milling and diameter expansion according to claim 1, characterized in that: The slag dumping body (300) comprises: A second conveying section (320), the second conveying section (320) is a hollow barrel-shaped body, one end of which is fixedly connected to and communicates with the slag collecting bucket (220), and the other end of which discharges the sludge; A third spiral blade (321) is fixedly connected inside the second conveying section (320).

4. The sludge removal device for pipe milling and diameter expansion according to claim 3, characterized in that: A first conveying section (310) is also fixedly connected between the second conveying section (320) and the slag collecting bucket (220). The first conveying section (310) is a hollow cone, the cone is lower than and fixedly connected to the slag collecting bucket (220), and the top of the cone is fixedly connected to the second conveying section (320); A second spiral blade (311) is fixedly connected inside the first conveying section (310).

5. The sludge removal device for pipe milling and diameter expansion according to claim 3, characterized in that: One end of the second conveying section (320) for discharging the sludge is fixedly connected to a slag blocking portion (330); A gap is provided between the slag blocking portion (330) and the second conveying section (320), so that the slag falls by gravity without splashing.

6. The sludge removal device for pipe milling and diameter expansion according to claim 1, characterized in that: The collecting arms (230) are arranged linearly or spirally along the axial radial direction of the slag collecting bucket (220).

7. The sludge removal device for pipe milling and diameter expansion according to claim 6, characterized in that: The collecting port (232) is connected to the end of the collecting claw (231), and the included angle with the axis of the collecting arm (230) is an obtuse angle, so that the cross section of the collecting arm (230) close to the collecting claw (231) is larger than the cross section of the side close to the slag collecting bucket (220).

8. The sludge removal device for pipe milling and diameter expansion according to claim 1, characterized in that: The collecting claw (231) is a ribbed tooth-shaped structure, with the tooth tip facing the rotation direction of the cutter disc (100).

9. The sludge removal device for pipe milling and diameter expansion according to claim 1, characterized in that: The tray (210) is provided with a knife groove (211) that passes through both sides. The knife groove (211) allows the knife (110) to pass through and protrude from the tray (210).

10. The sludge removal device for pipe milling and diameter expansion according to claim 1, characterized in that: The collecting arms (230) are located between the cutters (110), and there are more than one collecting arms (230).

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