In-pipe lining rapid mortar repairer

Abstract

The utility model provides a pipeline lining quick mortar repairer, including drive motor and the rotary atomizer connected in the front end of motor rotating shaft, the rotary atomizer communicates mortar feed pipe, is fixedly connected with the liquid sprinkling tray on the outer wall of rotary atomizer towards drive motor side, the surface of liquid sprinkling tray is equipped with liquid storage groove, and the annular liquid scattering pipe is fixedly connected on the outer wall of drive motor and is opposite liquid sprinkling tray, one end of quick -setting agent liquid inlet pipe communicates liquid scattering pipe, and the other end is equipped with quick -joint, and the surface of liquid scattering pipe opposite liquid sprinkling tray is uniformly equipped with a plurality of liquid outlet holes. The utility model discloses when working respectively input cement mortar and instantaneous quick -setting agent, the rotary atomizer high -speed rotation sprays cement mortar, and simultaneously, liquid sprinkling tray also rotates together, and instantaneous quick -setting agent is also high -speed flung in the air and synchronously mixes into the foggy cement mortar, and the mixed mortar reaches the pipeline inner wall and can be instantaneous solidification, and it can be followed by spraying polyurea and other high molecular materials on the solidification lining without waiting, satisfy the requirement of pipeline lining quick repair construction.

Description

Technical Field

[0001] This utility model relates to a device for repairing the inner walls of various pipes by spraying cement mortar. Background Technology

[0002] After prolonged use, the inner walls of various underground pipelines and corresponding vertical inspection wells inevitably develop damage and leakage, requiring repair. A newer repair method involves inserting a cement mortar jet spraying device into the pipeline and moving it at a constant speed. The high-speed rotation sprays cement mortar onto the inner wall, forming a new lining. After the mortar lining has fully cured, a polymer material such as polyurea is sprayed onto it to form a protective layer with enhanced corrosion resistance, wear resistance, high flexibility, and strong adhesion. This repair method significantly improves the strength of the pipeline and greatly extends its service life.

[0003] In reality, the complete curing time for mortar lining is generally 6-12 hours or more, and it takes more than a week to reach the strength to bear partial loads. This excessively long construction period significantly impacts efficiency. Even with the addition of accelerators to the cement mortar mix, the open time is still at least 2-4 hours, and the subsequent application of protective layers made of polymer materials such as polyurea requires an even longer waiting period. Instant accelerators have now been developed, allowing cement mortar to cure instantly. However, these accelerators cannot be premixed into the cement mortar; they must be mixed in simultaneously during the spraying process. Current mortar rotary spraying equipment can only spray cement mortar at high speed from the nozzle, and cannot simultaneously spray and mix in the accelerator, thus still failing to meet the requirements for rapid repair construction. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a pipe lining rapid mortar repair device with a reasonable structure that can simultaneously spray cement mortar and instantaneous quick-setting agent.

[0005] This utility model includes a drive motor and a rotary nozzle connected to the front end of the motor shaft. The rotary nozzle is connected to a mortar feed pipe. A spraying disc is fixedly connected to the outer wall of the rotary nozzle facing the drive motor. The surface of the spraying disc is provided with a liquid storage groove. An annular dispersing pipe is fixedly connected to the outer wall of the drive motor and faces the spraying disc. One end of the quick-setting agent inlet pipe is connected to the dispersing pipe, and the other end is provided with a quick connector. Multiple liquid outlet holes are evenly provided on the surface of the dispersing pipe facing the spraying disc.

[0006] During operation, cement mortar and an instant-setting agent are fed in separately. As the rotary nozzle sprays the cement mortar at high speed, the spray plate also rotates, causing the instant-setting agent, which falls from the outlet of the dispensing pipe into the storage groove, to be ejected at high speed as tiny droplets. These droplets are simultaneously mixed into the atomized cement mortar in the air. The mixed mortar solidifies instantly upon reaching the inner wall of the pipe, allowing for immediate application of polymer materials such as polyurea onto the solidified lining without waiting. This continuous construction operation meets the requirements for rapid repair of pipe linings.

[0007] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the main structure of an embodiment.

[0009] Figure 2 This is the front view of the dispensing tube.

[0010] Figure 3 yes Figure 2 A bottom view.

[0011] Figure 4 This is the front view of the spray tray.

[0012] Figure 5 yes Figure 4 Top view.

[0013] Figure 6 yes Figure 2 Another form of schematic diagram.

[0014] Figure 7 yes Figure 6 A schematic diagram of the installation status of the dispensing pipe. Detailed Implementation

[0015] like Figures 1 to 5 As shown, the rotary nozzle 3 is connected to the front end of the motor shaft 2 of the drive motor 1, and the rotary nozzle 3 is connected to the mortar feed pipe 4. A spraying disc 5 is fixedly connected to the outer wall of the rotary nozzle 3 facing the drive motor 1, and the surface of the spraying disc 5 is provided with a liquid storage groove 6. An annular dispersing pipe 7 is fixedly connected to the outer wall of the drive motor 1 and faces the spraying disc 5. One end of the quick-setting agent inlet pipe 8 is connected to the dispersing pipe 7, and the other end is provided with a quick connector 9. Multiple liquid outlet holes 10 are evenly provided on the surface of the dispersing pipe 7 facing the spraying disc 5.

[0016] In this embodiment, a connecting piece 11 is fixedly provided on the outer peripheral wall of the dispersing pipe 7. The connecting piece 11 is fixedly connected to the outer wall of the drive motor 1 by fasteners. Figure 2As shown, the connecting piece 11 is a flat piece, and it is on the same plane as the annular dispersing pipe 7. The planes where the quick-setting agent inlet pipe 8 and the dispersing pipe 7 are located are at an intersecting angle. This type of connecting piece 11 is connected to the lower end of the drive motor 1, which makes installation more convenient.

[0017] It can also be like Figure 6 As shown, the connecting piece 11 is angle iron shaped, and the bent portion of the connecting piece 11 is perpendicular to the plane of the dispensing pipe 7. The plane of the quick-setting agent inlet pipe 8 is also perpendicular to the plane of the dispensing pipe 7. This type of dispensing pipe 7 is installed and used as follows... Figure 7 As shown, the connecting piece 11 is connected to the side wall of the drive motor 1, and the quick-setting agent inlet pipe 8 is close to the outer wall of the drive motor 1, occupying a relatively compact space.

[0018] During operation, the quick connector 9 of the accelerator inlet pipe 8 connects to an external metering pump. The accelerator enters the dispersing pipe 7 from the accelerator inlet pipe 8, and is then sprayed from the outlet 10 onto the surface of the spraying plate 5, flowing into the storage groove 6. Cement mortar is fed into the mortar inlet pipe 4 through an external feeding device, and then directly into the rotary nozzle 3. The motor shaft 2 of the drive motor 1 rotates, driving the rotary nozzle 3 and the spraying plate 5 to rotate at high speed. The cement mortar is evenly centrifugally sprayed from the rotary nozzle 3, and the accelerator is also thrown out at high speed from the spraying plate 5 as tiny droplets, which are simultaneously mixed into the cement mortar in the air. The mixed mortar can instantly solidify upon reaching the inner wall of the pipe, allowing for immediate subsequent construction.

[0019] In this embodiment, the motor shaft 2 is a hollow shaft, and the mortar feed pipe 4 passes through the interior of the motor shaft 2. The outer wall of the mortar feed pipe 4 and the inner wall of the motor shaft 2 maintain a clearance fit, forming an internal central feeding structure. The mortar feed pipe 4 feeds through the center of the motor without occupying additional space, resulting in a more compact structure. The conveyed cement mortar flows directly through the rotary nozzle 3, with no bends in the feeding path, high flow rate, and no clogging.

Claims

1. A rapid mortar repair device for pipe linings, comprising a drive motor and a rotary nozzle connected to the front end of the motor shaft, the rotary nozzle being connected to a mortar inlet pipe, characterized in that: A spraying plate (5) is fixedly connected to the outer wall of the rotary nozzle (3) facing the drive motor (1). The surface of the spraying plate (5) is provided with a liquid storage groove (6). The annular dispersing pipe (7) is fixedly connected to the outer wall of the drive motor (1) and faces the spraying plate (5). One end of the quick-setting agent inlet pipe (8) is connected to the dispersing pipe (7), and the other end is provided with a quick connector (9). Multiple outlet holes (10) are evenly provided on the surface of the dispersing pipe (7) facing the spraying plate (5).

2. The rapid mortar repair device for pipe linings according to claim 1, characterized in that: A connecting piece (11) is fixedly provided on the outer peripheral wall of the dispensing pipe (7), and the connecting piece (11) is fixedly connected to the outer wall of the drive motor (1) by fasteners.

3. The rapid mortar repair device for pipe linings according to claim 2, characterized in that: The connecting piece (11) is a flat piece, and it is on the same plane as the annular dispersing pipe (7). The planes where the quick-setting agent inlet pipe (8) and the dispersing pipe (7) are located are at an intersecting angle.

4. The pipe lining quick mortar repair device according to claim 2 is characterized in that: the connecting piece (11) is in the shape of angle iron, the bent part of the connecting piece (11) is perpendicular to the plane of the dispersing pipe (7), and the plane of the quick-setting agent inlet pipe (8) and the dispersing pipe (7) is also perpendicular.

5. The pipe lining rapid mortar repair device according to claim 1, 2, 3 or 4, characterized in that: the motor shaft (2) is a hollow shaft, the mortar feed pipe (4) penetrates the interior of the motor shaft (2), and the outer wall of the mortar feed pipe (4) and the inner wall of the motor shaft (2) maintain a clearance fit to form an internal central feeding structure.

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