A dredging and slag removal device for blocked drainage pipes in tunnels

Abstract

A device for unblocking and removing slag from a blocked drainage pipe in a tunnel, a guide chamber is arranged on a walking chassis, a motor and a hydraulic motor are arranged on the inner wall of the guide chamber, an output shaft of the motor is connected to a crushing transmission shaft, an output shaft of the hydraulic motor is connected to a drill transmission shaft, the drill transmission shaft is arranged inside a hollow crushing transmission shaft, the drill is arranged in a drill clamping groove at the end of the transmission shaft, crushing blades are evenly arranged on the crushing transmission shaft, one end of the guide chamber is connected to a cutting guard arm, and the other end is connected to a dust suction pipe through a movable joint, the dust suction pipe is connected to a dust collecting box, an air suction machine is arranged inside the dust collecting box, under the dual action of the spiral crusher of the device and the protruding grinding protrusions in the chamber, the crushed crystal blocks are collected by the dust collecting box through the guide chamber under the action of the air suction machine, so as to achieve the purpose of unblocking the tunnel crystal blocked pipeline, so that the drainage pipe can resume normal use function, so as to ensure the structural safety and normal operation of the tunnel.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel drainage pipe blockage treatment devices or equipment, and specifically relates to a dredging and slag removal device for tunnel drainage pipe blockage. Background Art

[0002] Calcium ions in concrete materials used in tunnel construction are easily seeped out under the scouring of groundwater. After the seeped calcium enters the drainage system, it reacts with CO2 in the external environment to easily generate insoluble crystals such as calcium carbonate. Due to the low water pressure of the drainage system and the adhesion of the drainage pipe wall, insoluble crystals such as calcium carbonate gradually accumulate and precipitate on the inner wall of the drainage pipe, gradually causing the drainage pipe to be blocked. This kind of calcium ion seepage and crystallization problem in tunnel concrete is not only easy to cause the failure of the tunnel drainage system, but also affects the strength of the tunnel concrete, causing the deterioration and cracking of the tunnel lining structure, and the damage is irreversible and the damage speed will become faster and faster, so this problem needs to be solved urgently. The automatic crystal removal device for unblocking tunnel blocked drainage pipes is designed to solve this problem. Based on the general principle of gradual, safe and robust progress, the device, when cleaning the blocked crystal blocks in the pipeline, follows the processing sequence of crushing-crushing-collection, gradually advances forward and cleans the crystal blocks section by section, and finally achieves the goal of completely removing the blocked crystal blocks in the drainage pipe. At the same time, taking into account the hardness of the tunnel crystal block, the longitudinal length and slope of the tunnel drainage pipe, the crystallization removal and dredging device is also specially equipped with a cutting and crushing device and a cutting auxiliary support device to improve the working efficiency and adaptability of the device in the special pipeline environment of the tunnel. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a dredging and slag removal device for tunnel blocked drainage pipes which has a reasonable design, a simple structure, a high crystallization removal efficiency, centralized treatment of crushed crystal dust, and no pollution to the environment.

[0004] The technical solution adopted to solve the above technical problems is: a dredging and slag removal device for a blocked drainage pipe in a tunnel, which is composed of a crystallization crushing device arranged in the pipe and a dust collection device outside the pipe;

[0005] The crystal crushing device is as follows: a guide chamber is arranged on the walking chassis, one end of the guide chamber is connected to the cutting guard arm, a motor is arranged on the inner wall of the guide chamber through a motor fixing frame, a hydraulic motor is arranged on the motor fixing frame on the inner wall of the guide chamber, the hydraulic motor is connected to the hydraulic pump, the output shaft of the motor is connected to the crushing transmission shaft through a gear transmission mechanism, the output shaft of the hydraulic motor is connected to the drill bit transmission shaft, the drill bit transmission shaft is coaxially arranged inside the hollow crushing transmission shaft, a drill bit slot is arranged at the end of the drill bit transmission shaft, the drill bit is arranged in the drill bit slot, crushing blades are evenly arranged on the crushing transmission shaft, and the walking chassis, the motor, the hydraulic pump, the hydraulic motor and the control system are electrically connected;

[0006] The dust collecting device is as follows: the other end of the guide cavity is connected to the dust suction pipe through a movable joint, the dust suction pipe is connected to the dust collecting box, an air suction machine is arranged inside the dust collecting box, and the drill bit extends out of the end of the cutting guard arm.

[0007] The drill bit of the present invention is a hollow conical drill bit, and the infrared sensor is arranged in the hollow part of the drill bit and is electrically connected to the control system.

[0008] The outer wall of the cutting guard arm of the present invention is evenly provided with two groups of pipe wall stabilizing devices, and the pipe wall stabilizing device is composed of a retractable hydraulic support arm, a rubber protective pad, and a pipe wall stabilizing block. One end of the retractable hydraulic support arm is arranged on the outer wall of the cutting guard arm, and the other end is provided with a pipe wall stabilizing block. The pipe wall stabilizing block is provided with a rubber protective pad, and the retractable hydraulic support arm is electrically connected to the control system.

[0009] The included angle between the center line of the telescopic hydraulic support arm of the present invention and the center line of the cutting guard arm is 30° to 60°.

[0010] The cutting guard arm of the present invention is a hollow circular pipe, and the inner wall of one end of the cutting guard arm close to the drill bit is processed into a conical structure.

[0011] The inner wall of the cutting guard arm of the present invention is evenly provided with grinding protrusions.

[0012] The grinding protrusion of the present invention is a cone-shaped structure.

[0013] The pulverizing transmission shaft of the present invention is provided with spiral blades.

[0014] The rotation speed of the pulverizing transmission shaft of the present invention is lower than the rotation speed of the drill transmission shaft.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] In view of the characteristics of long crystallization section, high hardness of scale deposits and hidden operation space of crystal precipitates in special pipeline environment of tunnel, the present invention provides a detachable mechanical drill for dredging, dust transmission pipeline and dust collection device, which can realize physical dredging of blocked pipelines in long hidden environment, with simple operation, high efficiency, centralized treatment of crystal dust and no pollution to the environment. The device firstly crushes the crystal block on a larger scale through a telescopic triangular drill bit and a circular cutting guard arm, and then advances through the device, and the crushed crystal block is gathered by the conical structure at the front end of the guard arm, and then through the action of the spiral crusher at the rear of the drill bit, the crushed crystal block enters the interior of the device, and under the dual action of the spiral crusher and the protruding grinding protrusions in the cavity, the crystal block is crushed, and then under the action of the air suction machine, the dust passes through the diversion cavity and the dust suction pipe, and is finally collected in the dust collection box, thereby achieving the purpose of dredging the tunnel crystal blocked pipeline, so that the drainage pipe can resume normal use function, so as to ensure the structural safety and normal operation of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the medium crystallization crushing device.

[0019] Figure 3 yes Figure 2 AA section view.

[0020] In the figure: 1. drill bit slot; 2. infrared sensor; 3. drill bit; 4. retractable hydraulic support arm; 5. rubber protective pad; 6. pipe wall stabilizing block; 7. cutting guard arm; 8. gear transmission mechanism; 9. motor; 10. motor fixing bracket; 11. motor fixing bracket; 12. hydraulic motor; 13. guide chamber; 14. movable joint; 15. walking chassis; 16. drill bit drive shaft; 17. grinding protrusion; 18. crushing drive shaft; 19. crushing blade; 20. dust suction pipe; 21. air suction machine; 22. dust collection box. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to these embodiments. Example 1

[0022] exist Figures 1 to 3 The present invention relates to a device for clearing and removing slag from blocked drainage pipes in tunnels, which is composed of a crystallization crushing device arranged in the pipe and a dust collecting device outside the pipe. After the crystallization precipitate in the pipe is cut and ground into dust by the crystallization crushing device, the dust enters the dust suction pipe through a guide groove under the action of an air suction machine, and is finally collected in a dust collecting box.

[0023] The crystal crushing device is composed of a drill bit slot 1, an infrared sensor 2, a drill bit 3, a retractable hydraulic support arm 4, a rubber protective pad 5, a pipe wall stabilizing block 6, a cutting arm 7, a gear transmission mechanism 8, a motor 9, a motor fixing frame 10, a motor fixing frame 11, a hydraulic motor 12, a guide chamber 13, a movable joint 14, a walking chassis 15, a drill bit transmission shaft 16, a grinding protrusion 17, a crushing transmission shaft 18, and a crushing blade 1. The walking chassis drives the device to move in the pipeline. A guide chamber 13 is installed on the walking chassis 15. The guide chamber 13 is a hollow structure. The right end of the guide chamber 13 converges in an arc shape to form a smooth cavity surface to prevent dust from accumulating in the dead corner inside the guide chamber 13 and damaging the entire device. One end of the flow diversion chamber 13 is connected to the cutting arm 7, which is a hollow circular pipe. The inner wall of the cutting arm 7 near the drill bit 3 is processed into a conical structure, which reduces the contact area between the cutting arm 7 and the pipe crystal block. At the same time, the sharp conical structure can also play a certain cutting role on the pipe wall crystal block. The inner wall of the flow diversion chamber 13 is fixedly connected and installed with a motor fixing frame 10 and a motor fixing frame 11 by using threaded fastening connectors. The motor fixing frame 10 is fixedly connected and installed with a motor 9 by using threaded fastening connectors. The motor fixing frame 11 is fixedly connected and installed with a hydraulic motor 12 by using threaded fastening connectors. The hydraulic motor 12 is connected to the hydraulic pump. The output shaft of the motor 9 is connected to the crushing transmission shaft 18 through the gear transmission mechanism 8. The output shaft of the hydraulic motor 12 is connected to the drill bit transmission shaft 16. The drill bit transmission shaft 16 is coaxially installed inside the hollow crushing transmission shaft 18. Further, the rotation speed of the crushing transmission shaft 18 in this embodiment is less than the rotation speed of the drill bit transmission shaft 16. The traveling chassis 15, the motor 9, the hydraulic pump, the hydraulic motor 12 are electrically connected to the control system. The control system of the present invention controls the movement of the traveling chassis 15, controls the rotation of the motor 9, and the hydraulic pump supplies fluid to the hydraulic motor, and is a product sold on the market.

[0024] The end of the drill drive shaft 16 is fixedly connected and installed with a drill slot 1 through a threaded fastening connector, and the drill bit 3 is installed in the drill slot 1, and the drill bit 3 extends out of the end of the cutting guard arm 7. The drill bit 3 is a hollow conical drill bit, and the infrared sensor 2 is installed in the hollow part of the drill bit 3 and is electrically connected to the control system. The rotation of the hydraulic motor 12 drives the drill drive shaft 16, and the rotation of the drill drive shaft 16 causes the drill bit 3 to rotate, and the crystals are crushed and cut. Crushing blades 19 are evenly installed on the crushing drive shaft 18, and further, the crushing blades 19 of this embodiment are spiral blades. The rotation of the motor 9 drives the crushing rotating shaft 18 to rotate, and the crushing blades 19 further crush the crystals cut by the drill bit 3. The inner wall of the cutting guard arm 7 is evenly welded and fixed with grinding protrusions 17, and the grinding protrusions 17 cooperate with the crushing blades 19 to grind the crystals. The grinding protrusions 17 are of a conical structure, which ensures that the crystals are crushed as much as possible to facilitate the collection of the dust collection device. Two sets of pipe wall stabilizing devices are evenly installed on the outer wall of the cutting guard arm 7. The pipe wall stabilizing device is composed of a retractable hydraulic support arm 4, a rubber protective pad 5, and a pipe wall stabilizing block 6. One end of the retractable hydraulic support arm 4 is fixedly connected and installed on the outer wall of the cutting guard arm 7 through a threaded fastening connector, and the other end is installed with a pipe wall stabilizing block 6. The rubber protective pad 5 is installed on the pipe wall stabilizing block 6. After the infrared sensor 2 detects a crystal block, the retractable hydraulic support arm 4 is instructed to extend outward by the control system, so that the rubber protective pad 5 is supported on the inner wall of the pipe to ensure the stability of the entire device and make the drill bit 3 as stable as possible during the drilling and cutting process. The rubber protective pad 5 increases the contact surface and friction between the pipe wall stabilizing device and the inner wall of the pipe, and at the same time protects the inner wall of the pipe, prevents metal scratches, and increases the service life of the pipe. In order to save space and make the whole device move unhindered, the angle between the center line of the retractable hydraulic support arm 4 and the center line of the cutting guard arm 7 is 30° to 60°. The retractable hydraulic support arm 4 is electrically connected to the control system.

[0025] The dust collection device is composed of a dust suction pipe 20, an air suction machine 21, and a dust collection box 22; the other end of the guide cavity 13 is connected to the dust suction pipe 20 through a movable joint 14, and the dust suction pipe 20 is connected to the dust collection box 22. An air suction machine 21 is installed inside the dust collection box 22. The air suction machine 21 provides a certain suction force for the dust collection box 22, forming a negative pressure environment, so that the crushed crystal blocks in the cutting and crushing device can enter the dust collection box 22 more easily.

[0026] The working principle of the present invention is as follows:

[0027] The walking chassis 15 drives the entire device to move in the pipeline. When the infrared sensor 2 detects the crystal block, it feeds back to the control system. The control system controls the retractable hydraulic support arm 4 to extend and the walking chassis 15 to move slowly. At the same time, the control system controls the hydraulic pump to supply fluid to the hydraulic motor 12. The hydraulic motor 12 drives the drill bit 3 to perform preliminary cutting and crushing on the crystal. During the movement, the conical structure at the front end of the cutting guard arm 7 removes the crystal block. The crushed crystal block enters the inner cavity of the cutting guard arm 7. The control motor 9 rotates to drive the crushing blades 19 on the crushing transmission shaft 18 to rotate to further crush the crystal block. The grinding protrusion 17 further grinds and crushes it. The air suction machine 21 is started, so that the crushed crystal block enters the dust box 22 through the dust suction pipe 20 to be collected. After the pipeline blockage is cleared, the infrared sensor 2 feeds back to the control system, and the control system controls the retractable hydraulic support arm 4 to retract and the walking chassis 15 to resume the forward speed.

Claims

1. A dredging and slag removal device for a blocked drainage pipe in a tunnel, which is composed of a crystallization crushing device arranged in the pipe and a dust collection device outside the pipe; The dust collecting device comprises: the other end of the guide cavity (13) is connected to the dust suction pipe (20) via a movable joint (14); the dust suction pipe (20) is connected to the dust collecting box (22); and an air suction machine (21) is arranged inside the dust collecting box (22); Features The crystal crushing device comprises: a guide chamber (13) is arranged on a walking chassis (15), one end of the guide chamber (13) is connected to a cutting guard arm (7), a motor (9) is arranged on the inner wall of the guide chamber (13) via a motor fixing frame (10), a hydraulic motor (12) is arranged on a motor fixing frame (11) on the inner wall of the guide chamber (13), the hydraulic motor (12) is connected to a hydraulic pump, an output shaft of the motor (9) is connected to a crushing transmission shaft (18) via a gear transmission mechanism (8), and the hydraulic motor (12) is connected to a hydraulic pump. The output shaft of the drill (12) is connected to a drill drive shaft (16), the drill drive shaft (16) is coaxially arranged inside a hollow crushing drive shaft (18), a drill slot (1) is arranged at the end of the drill drive shaft (16), the drill (3) is arranged in the drill slot (1), the drill (3) extends out of the end of the cutting guard arm (7), crushing blades (19) are evenly arranged on the crushing drive shaft (18), and the walking chassis (15), the motor (9), the hydraulic pump, the hydraulic motor (12) are electrically connected to the control system; The cutting guard arm (7) is a hollow circular pipe, and the inner wall of one end of the cutting guard arm (7) close to the drill bit (3) is processed into a conical structure; two groups of pipe wall stabilizing devices are evenly arranged on the outer wall of the cutting guard arm (7), and the pipe wall stabilizing device is composed of a retractable hydraulic support arm (4), a rubber protective pad (5), and a pipe wall stabilizing block (6) connected together; one end of the retractable hydraulic support arm (4) is arranged on the outer wall of the cutting guard arm (7), and the other end is provided with a pipe wall stabilizing block (6), and a rubber protective pad (5) is provided on the pipe wall stabilizing block (6); the retractable hydraulic support arm (4) is electrically connected to the control system.

2. The device for clearing and removing slag from blocked drainage pipes in tunnels according to claim 1, characterized in that: The drill bit (3) is a hollow conical drill bit, and the infrared sensor (2) is arranged in the hollow part of the drill bit (3) and is electrically connected to the control system.

3. The device for clearing and removing slag from blocked drainage pipes in tunnels according to claim 1, characterized in that: The included angle between the center line of the telescopic hydraulic support arm (4) and the center line of the cutting guard arm (7) is 30° to 60°.

4. The device for clearing and removing slag from blocked drainage pipes in tunnels according to claim 1, characterized in that: The inner wall of the cutting guard arm (7) is evenly provided with grinding protrusions (17).

5. The device for clearing and removing slag from blocked drainage pipes in tunnels according to claim 4, characterized in that: The grinding protrusion (17) is a conical structure.

6. The device for clearing and removing slag from blocked drainage pipes in tunnels according to claim 1, characterized in that: The pulverizing transmission shaft (18) is provided with spiral blades.

7. The device for clearing and removing slag from blocked drainage pipes in tunnels according to claim 1, characterized in that: The rotation speed of the crushing transmission shaft (18) is lower than the rotation speed of the drill transmission shaft (16).

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