A pipe jacking construction tunneling equipment

Abstract

The present invention provides a pipe jacking construction tunneling device, including a tunneling main body. A rotatable tunneling cutter head is installed at the first end of the tunneling main body. A partition plate is fixedly connected to the inner wall of the tunneling main body. The partition plate divides the tunneling main body into a tunneling chamber and an installation chamber. A through first opening is formed in the side wall of the partition plate. A first conveying assembly is arranged in the installation chamber. The first end of the first conveying assembly is communicated with the first opening. The second end of the first conveying assembly extends towards the inner top of the tunneling main body. A circulation opening is formed at the first end of the first conveying assembly. A through second opening is formed in the side wall of the partition plate. The second opening and the circulation opening are communicated through a connecting pipe. This invention can filter moisture during the process of mud discharge and realize moisture circulation, ensuring the constant pressure in the tunneling chamber and the safety of tunneling operations.

Description

Technical Field

[0001] The present invention relates to the technical field of tunneling equipment, and particularly to a pipe jacking construction tunneling equipment. Background Art

[0002] During the process of mining and processing in a certain place, it is necessary to transport the waste tailings to a mining pit 14 KM away; among them, the tailings slurry is transported through a pipeline. When laying the pipeline of the tailings slurry, it is necessary to lay the pipeline through pipe jacking construction to cross the river, so as to ensure the normal laying of the pipeline and avoid the normal transportation function of the road.

[0003] During the operation of pipe jacking construction, the cutting tool at the front end rotates continuously, breaking the soil layer at the front end of the tool, and continuously injecting liquid to mix the fallen soil to form slurry; during the operation, it is necessary to continuously discharge the generated slurry from the tunneling main body to ensure the normal progress of the tunneling construction; the existing tunneling equipment has a simple discharge port setting. During the process of transporting the slurry, the slurry with high water content flows out quickly, resulting in a rapid drop in the pressure in the excavation chamber. It is necessary to replenish the liquid in time to ensure the constancy of the pressure in the excavation chamber and avoid insufficient front support pressure, resulting in soil layer collapse and affecting the operation safety; the above method requires injecting an equal amount of liquid while discharging the slurry. The pressure in the tunneling chamber is unstable, and the risk of collapse increases. It is necessary to continuously pump in water, which increases the overall water consumption of the operation and also increases the burden of slurry discharge. Summary of the Invention

[0004] In view of the above problems, the present invention provides a pipe jacking construction tunneling equipment, which can filter water and realize water circulation during the process of slurry discharge, ensuring the constancy of the pressure in the tunneling chamber and the safety of the tunneling operation.

[0005] To solve the above problems, the technical solution adopted by the present invention is:

[0006] A pipe jacking construction tunneling equipment, including a tunneling main body, a tunneling cutter head rotatably installed at the first end of the tunneling main body, a partition plate fixedly connected to the inner wall of the tunneling main body, the partition plate dividing the tunneling main body into a tunneling chamber and an installation chamber, a through first opening formed in the side wall of the partition plate, a first conveying assembly arranged in the installation chamber, the first end of the first conveying assembly communicating with the first opening, the second end of the first conveying assembly extending towards the top inside the tunneling main body, a circulation opening formed at the first end of the first conveying assembly, a through second opening formed in the side wall of the partition plate, the second opening and the circulation opening being communicated through a connecting pipe, a pumping device arranged in the connecting pipe, and a filtering assembly further arranged inside the tunneling main body, the filtering assembly being connected in series between the connecting pipe and the first conveying assembly.

[0007] Preferably, the first conveying assembly includes a first conveying main body, a first driving rotating shaft is arranged inside the first conveying main body, a first spiral conveying blade is fixedly connected to the outer wall of the first driving rotating shaft, a discharge cylinder is installed at the second end of the first conveying assembly, and a collection box located at the lower end of the discharge cylinder is arranged inside the tunneling main body.

[0008] Preferably, the pumping device includes an elastic telescopic rod, the elastic telescopic rod includes a pumping base and a pumping piston, a pumping chamber is formed between the pumping piston and the pumping base, two pumping pipes are communicated with the pumping chamber, one-way valves are arranged in both pumping pipes, the end of the first pumping pipe is communicated with the second opening, the end of the second pumping pipe is communicated with the first conveying assembly, a control rotating shaft is rotatably connected to the side wall of the partition plate, a control cam is fixedly connected to the first end of the control rotating shaft, and the control cam is located at a corresponding position on one side of the elastic telescopic rod.

[0009] Preferably, a stirring base and a stirring rod are arranged inside the tunneling chamber, the stirring rod is fixedly connected to the stirring base, the stirring base is rotatably connected to the partition plate, and the end of the control rotating shaft penetrates through the partition plate and is fixedly connected to the stirring base.

[0010] Preferably, a second conveying assembly is arranged inside the installation chamber, the second conveying assembly is horizontally arranged and is located between the first conveying assembly and the first opening.

[0011] Preferably, the second conveying assembly includes a second conveying main body, a second driving rotating shaft is arranged inside the second conveying main body, and a second spiral conveying blade is fixedly connected to the outer wall of the second driving rotating shaft.

[0012] Preferably, the filtering assembly includes a filtering installation cylinder, a filtering net cover is installed inside the filtering installation cylinder, and a filtering installation nozzle communicated therewith is fixedly connected to the outer wall of the filtering installation cylinder.

[0013] Preferably, the filtering net cover slides relatively with the inner wall of the filtering installation cylinder, a first magnetic block is fixedly connected to the top end of the filtering net cover, a second magnetic block is fixedly connected to the surface of the first driving rotating shaft, and the second magnetic block corresponds to the position of the first magnetic block.

[0014] Preferably, the first opening is located at the bottom end of the partition plate, and the second opening is located at the top end of the partition plate.

[0015] The beneficial effects of the present invention are:

[0016] 1. By setting an inclined first conveying component, the slurry in the excavation chamber can be quickly conveyed to achieve the rapid discharge of the slurry. A connecting pipe and a pumping device are provided at the first end of the first conveying component to recycle the water in the first conveying component. The filtering function is realized through the filtering component to ensure the normal operation of the pumping device. The water in the slurry is circulated and flowed back into the excavation chamber. On the one hand, it can ensure the constancy of the pressure in the excavation chamber, reduce the pressure loss in the excavation chamber, ensure the normal progress of excavation and save water, killing two birds with one stone. And by setting the pumping device and the circulation pipe, the directional circulation flow of water can be realized, and the slurry can flow directionally with the water, accelerating the discharge of the slurry in the excavation chamber and ensuring the normal progress of excavation.

[0017] 2. A second conveying component is provided between the first conveying component and the partition plate, and its conveying rate is adjusted according to the excavation rate to meet the conveying requirements. The conveying efficiency of the first conveying component is adjusted according to the slurry production rate, so that the slurry can fill the first conveying component. The filled slurry can play a relatively sealing role, avoiding the rapid loss of water and ensuring the circulation of water. After being dispersed and dewatered, the slurry has a higher density and better sealing effect. And by setting the first spiral conveying blade, the slurry can be distributed in a spiral shape, filling the entire pipeline and extending the sealing distance, further improving the sealing effect and ensuring the constancy of the pressure in the excavation chamber and the overall stable operation.

[0018] 3. By setting the filtering component as a filtering installation cylinder and a filter mesh cover, it is convenient for subsequent replacement. And by setting structures such as a second magnetic block and a first magnetic block, while the first conveying component realizes the conveying of the slurry, it can control the vibration of the filter mesh cover to realize the cleaning process, extend the overall service life, ensure the filtering effect and the normal operation of the whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is the Figure 1 front view structural schematic diagram of the present invention;

[0021] Figure 3 is the Figure 1 top view structural schematic diagram of the present invention;

[0022] Figure 4 is the Figure 3 A-A sectional view structural schematic diagram of the present invention;

[0023] Figure 5 is the Figure 3 B-B sectional view structural schematic diagram of the present invention;

[0024] Figure 6 For the present invention Figure 3 Schematic cross-sectional structure diagram of the C-C line;

[0025] Figure 7 For the present invention Figure 5 Schematic enlarged structure diagram at position D of the present invention.

[0026] In the figure: 1, tunneling main body; 101, partition board; 1011, second opening; 1012, first opening; 2, tunneling cutter head; 3, second conveying assembly; 301, second conveying main body; 302, second driving rotating shaft; 303, second spiral conveying blade; 4, first conveying assembly; 401, first conveying main body; 402, first driving rotating shaft; 403, first spiral conveying blade; 404, discharge cylinder; 5, collection box; 6, pumping device; 601, elastic telescopic rod; 602, pumping chamber; 603, pumping pipeline; 7, control rotating shaft; 701, control cam; 8, stirring base; 801, stirring rod; 9, filtering assembly; 901, filtering installation cylinder; 902, filter mesh cover; 903, filtering installation nozzle; 9041, second magnetic block; 9042, first magnetic block. Specific embodiments

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Referring to Figures 1-7 , a pipe jacking construction tunneling device includes a tunneling main body 1. A rotatable tunneling cutter head 2 is installed at the first end of the tunneling main body 1. A driving device is arranged inside the tunneling main body 1 to control the rotation of the tunneling cutter head 2. During the rotation of the tunneling cutter head 2, the soil layer in the front can be broken, and the excavation of the passage is completed during the continuous advancement of the tunneling main body 1; A partition board 101 is fixedly connected to the inner wall of the tunneling main body 1. The partition board 101 divides the tunneling main body 1 into a tunneling chamber and an installation chamber. Referring to the attached Figure 4 , the left side is the tunneling chamber, and the right side is the installation chamber. Electrical equipment required for tunneling is installed in the installation chamber; Mechanical equipment required for tunneling is arranged in the tunneling chamber. During the tunneling process, excavation liquid needs to be injected into the tunneling chamber. The excavation liquid flows out from the opening on the surface of the tunneling cutter head 2, which can infiltrate the soil layer in the front to reduce the friction of excavation; And it is necessary to ensure that the pressure in the excavation chamber is constant according to the actual excavation situation to avoid the lack of support and collapse of the soil layer excavated in the front due to too small pressure, resulting in danger.

[0029] The slurry generated by excavation is located in the excavation chamber. To ensure the continuous discharge of the slurry in the excavation chamber, a through first opening 1012 is provided in the bottom side wall of the partition plate 101. A first conveying assembly 4 is arranged in the installation chamber. The first end of the first conveying assembly 4 is communicated with the first opening 1012, and the second end of the first conveying assembly 4 extends towards the top inside the tunneling main body 1. The first conveying assembly 4 is inclined, and the discharge port of the slurry at its end is higher than the axis position of the partition plate 101. The first conveying assembly 4 can continuously discharge the slurry generated in the tunneling chamber during operation.

[0030] The traditional conveying assembly has a simple structure and can only play a simple role of opening and closing and conveying. During the opening process, the slurry cannot be treated. In the open state, the slurry in the tunneling chamber is discharged from the conveying assembly, resulting in a decrease in the pressure in the tunneling chamber, affecting the tunneling work. It is necessary to replenish the tunneling liquid into the tunneling chamber according to the amount of discharged slurry to maintain a constant pressure. To overcome the above problems, a circulation opening is provided at the first end of the first conveying assembly 4, and a through second opening 1011 is provided in the top side wall of the partition plate 101. The second opening 1011 and the circulation opening are communicated through a connecting pipe, and a pumping device 6 is arranged in the connecting pipe. By setting the pumping device 6, the liquid in the slurry can be circulated. Among them, the dewatered slurry can continue to be directionally conveyed through the first conveying assembly 4 to ensure the normal discharge of impurities. The water in the slurry can be circulated through the pumping device 6 and the connecting pipe and re-enter the tunneling chamber, which can avoid the pressure in the tunneling chamber from dropping too fast, ensure the constancy of the pressure, and ensure the normal progress of the tunneling work. And a filtering assembly 9 is also arranged inside the tunneling main body 1. The filtering assembly 9 is connected in series between the connecting pipe and the first conveying assembly 4. By setting the filtering assembly 9, the slurry in the first conveying assembly 4 can be filtered, thereby avoiding excessive solid impurities in the reflux liquid, ensuring the normal operation of the pumping device 6, and also ensuring the normal discharge of solid impurities.

[0031] Specifically refer to the appendix Figure 5 ; Among them, the first conveying assembly 4 includes a first conveying main body 401. A first driving rotating shaft 402 is arranged inside the first conveying main body 401. A first spiral conveying blade 403 is fixedly connected to the outer wall of the first driving rotating shaft 402. A discharge barrel 404 is installed at the second end of the first conveying assembly 4. A collection box 5 is arranged inside the tunneling main body 1 at the lower end of the discharge barrel 404. A first electric control device is arranged outside the first conveying main body 401 to control the rotation of the first driving rotating shaft 402. During the rotation of the first driving rotating shaft 402, the slurry in the first conveying main body 401 can be continuously discharged through the first spiral conveying blade 403. Finally, the slurry is discharged from the discharge barrel 404 and falls into the collection box 5 to complete the operation.

[0032] Among them, the pumping device 6 includes an elastic telescopic rod 601. The elastic telescopic rod 601 includes a pumping base and a pumping piston. A pumping chamber 602 is formed between the pumping piston and the pumping base. Two pumping pipes 603 are communicated with the pumping chamber 602. One-way valves are arranged in the pumping pipes 603. The end of the first pumping pipe 603 is communicated with the second opening 1011, and the end of the second pumping pipe 603 is communicated with the first conveying assembly 4. When the pumping piston reciprocates, the size of the pumping chamber 602 changes intermittently. Under the action of the one-way valves, the directional movement of the liquid can be realized. A control rotating shaft 7 is rotatably connected to the side wall of the partition plate 101. A driving device is arranged on one side of the partition plate 101 to adjust and control the directional rotation of the control rotating shaft 7. A control cam 701 is fixedly connected to the first end of the control rotating shaft 7. The control cam 701 is located at the corresponding position on one side of the elastic telescopic rod 601. The control rotating shaft 7 can drive the control cam 701 to rotate directionally. The elastic telescopic rod 601 includes a telescopic control rod fixedly connected to the pumping piston. The telescopic control rod and the control cam 701 cooperate with each other to control the reciprocating movement of the pumping piston, thereby realizing the directional pumping process of the liquid.

[0033] A stirring base 8 and a stirring rod 801 are arranged in the tunneling chamber. The stirring rod 801 is fixedly connected to the stirring base 8. The stirring base 8 is rotatably connected to the partition plate 101. The end of the control rotating shaft 7 penetrates through the partition plate 101 and is fixedly connected to the stirring base 8. When the control rotating shaft 7 rotates, it can drive the stirring base 8 and the stirring rod 801 to rotate. Their rotation can stir and disperse the mud in the tunneling chamber, reduce its particle size, and facilitate the subsequent conveying process of the mud.

[0034] A second conveying assembly 3 is arranged in the installation chamber. The second conveying assembly 3 is horizontally arranged and located between the first conveying assembly 4 and the first opening 1012. By arranging the second conveying assembly 3, the slurry in the partition plate 101 can be quickly conveyed. The horizontally arranged second conveying assembly 3 can be staggered from the obliquely arranged first conveying assembly 4, which is convenient for control and also beneficial to the conveying of the slurry. Among them, by controlling the second conveying assembly 3 to rotate and convey quickly, the slurry with a higher water content can be conveyed to one side of the first conveying assembly 4, which can match the excavation speed and ensure the slurry discharge rate. Adjust the conveying rate of the slurry in the first conveying assembly 4 according to the slurry discharge rate. The slurry conveyed in the first conveying assembly 4 has a lower water content. The rotation speed of the first conveying assembly 4 relative to the second conveying assembly 3 can be controlled to slow down. At this time, the slurry can fill the first conveying assembly 4, and the dehydrated slurry can be located in the first conveying assembly 4 to play the role of a "valve", which can prevent the slurry from flowing out quickly from this place, avoid the rapid drop of the pressure in the tunneling chamber caused by the rapid loss of the slurry, and ensure the installation of the construction. It also ensures the effective operation of the pumping device 6 and can promote the liquid circulation. The slurry broken by the stirring base 8 and the stirring rod 801 has smaller particle size and can fill the first conveying assembly 4 to improve the sealing effect. The first conveying assembly 4 is provided with a first spiral conveying blade 403 inside, and the spirally distributed slurry can extend the sealing distance and enhance the sealing effect of the slurry.

[0035] The selected second conveying assembly 3 includes a second conveying main body 301. A second driving rotating shaft 302 is arranged in the second conveying main body 301. A second spiral conveying blade 303 is fixedly connected to the outer wall of the second driving rotating shaft 302. Similarly, a second electric control device is arranged outside the second conveying main body 301 to control the rotation of the second driving rotating shaft 302, and then the rapid directional conveying of the slurry is realized through the second spiral conveying blade 303.

[0036] Specifically, it can be referred to in the appendix Figure 7 ; Among them, the filtering assembly 9 includes a filtering installation cylinder 901. A filter mesh cover 902 is installed in the filtering installation cylinder 901. A filtering installation nozzle 903 communicated with it is fixedly connected to the outer wall of the filtering installation cylinder 901. By arranging the filter mesh cover 902, the slurry can be filtered to prevent impurities with large-sized particles from entering the pumping device 6 through the filtering installation nozzle 903 and affecting its normal operation.

[0037] To enhance the filtering effect, the filter mesh cover 902 is set to slide relative to the inner wall of the filter installation cylinder 901. A first magnetic block 9042 is fixedly connected to the top end of the filter mesh cover 902, and a second magnetic block 9041 is fixedly connected to the surface of the first driving rotating shaft 402. The second magnetic block 9041 corresponds to the position of the first magnetic block 9042. During the rotation of the first driving rotating shaft 402, the magnetic pole of the second magnetic block 9041 continuously changes, which can cooperate with the first magnetic block 9042 to attract or repel the first magnetic block 9042 and drive it to vibrate, so as to ensure the filtering effect of the filter mesh cover 902 during the mud transportation process and extend the working time.

[0038] During the working process of the present invention, the tunneling cutter head 2 is controlled to rotate directionally during the tunneling process. During the advancement of the tunneling main body 1 and the tunneling cutter head 2, the tunneling cutter head 2 can excavate the soil in front. During the tunneling process, a liquid is filled in the excavation chamber, which can be mixed with the soil that falls from the excavation in front. The mud is mixed in the excavation chamber and finally discharged from the first opening 1012 through the second conveying component 3 and the first conveying component 4 in sequence.

[0039] During the excavation process, the pumping device 6 is used to control the directional flow of the slurry, which can make the solid-liquid mixture in the excavation chamber flow towards the first opening 1012, driving the mud to flow directionally; the solid substances in the mud are retained in the first conveying component 4 under the action of the filtering component 9, and the filtered liquid substances flow back into the excavation chamber again to assist the excavation work.

[0040] Controlling the rapid rotation of the second driving rotating shaft 302 can quickly convey the scattered solid mud, making it quickly accumulate at the first end of the first conveying component 4, improving the mud conveying efficiency; controlling the rotation speed of the first driving rotating shaft 402 in the first conveying component 4 according to the mud generation rate, so that the mud with low water content can cover the entire first conveying main body 401. Finally, the solid mud drops into the collection box 5 to complete the collection process; by setting the pumping device 6, the recycling of the liquid can be realized, saving the water consumption and ensuring the pressure in the excavation chamber; by setting the dehumidified mud to cover the first conveying main body 401, the sealing effect can be enhanced through the mud, avoiding the excessive loss of water, and at the same time ensuring that the pressure in the excavation chamber is at a predetermined value, ensuring the normal progress of the excavation work and avoiding accidents.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe jacking construction tunneling device, including a tunneling main body (1), a rotatable tunneling cutter head (2) is installed at the first end of the tunneling main body (1), and it is characterized in that: A partition plate (101) is fixedly connected to the inner wall of the tunneling main body (1). The partition plate (101) divides the tunneling main body (1) into a tunneling chamber and an installation chamber. A through first opening (1012) is formed in the side wall of the partition plate (101). A first conveying assembly (4) is arranged in the installation chamber. The first end of the first conveying assembly (4) is communicated with the first opening (1012). The second end of the first conveying assembly (4) extends towards the inner top of the tunneling main body (1). A circulation opening is formed at the first end of the first conveying assembly (4). A through second opening (1011) is formed in the side wall of the partition plate (101). The second opening (1011) and the circulation opening are communicated through a connecting pipe. A pumping device (6) is arranged in the connecting pipe. A filtering assembly (9) is further arranged inside the tunneling main body (1). The filtering assembly (9) is connected in series between the connecting pipe and the first conveying assembly (4); The first conveying assembly (4) includes a first conveying main body (401). A first driving rotating shaft (402) is arranged inside the first conveying main body (401). A first spiral conveying blade (403) is fixedly connected to the outer wall of the first driving rotating shaft (402). A discharge cylinder (404) is installed at the second end of the first conveying assembly (4). A collection box (5) is arranged inside the tunneling main body (1) at the lower end of the discharge cylinder (404); The pumping device (6) includes an elastic telescopic rod (601). The elastic telescopic rod (601) includes a pumping base and a pumping piston. A pumping chamber (602) is formed between the pumping piston and the pumping base. The pumping chamber (602) is communicated with two pumping pipes (603). Check valves are arranged in both pumping pipes (603). The end of the first pumping pipe (603) is communicated with the second opening (1011). The end of the second pumping pipe (603) is communicated with the first conveying assembly (4). A control rotating shaft (7) is rotatably connected to the side wall of the partition plate (101). A control cam (701) is fixedly connected to the first end of the control rotating shaft (7). The control cam (701) is located at the corresponding position on one side of the elastic telescopic rod (601); A second conveying assembly (3) is arranged in the installation chamber. The second conveying assembly (3) is horizontally arranged and is located between the first conveying assembly (4) and the first opening (1012); The second conveying assembly (3) includes a second conveying main body (301). A second driving rotating shaft (302) is arranged inside the second conveying main body (301). A second spiral conveying blade (303) is fixedly connected to the outer wall of the second driving rotating shaft (302).

2. The pipe jacking construction tunneling equipment according to claim 1, characterized in that, A stirring base (8) and a stirring rod (801) are arranged in the tunneling chamber. The stirring rod (801) is fixedly connected to the stirring base (8). The stirring base (8) is rotatably connected to the partition plate (101). The end of the control rotating shaft (7) penetrates through the partition plate (101) and is fixedly connected to the stirring base (8).

3. The pipe jacking construction tunneling equipment according to claim 1, characterized in that, The filtering assembly (9) includes a filtering installation cylinder (901). A filter mesh cover (902) is installed in the filtering installation cylinder (901). A filtering installation nozzle (903) communicated with the filtering installation cylinder (901) is fixedly connected to the outer wall of the filtering installation cylinder (901).

4. The pipe jacking construction tunneling equipment according to claim 3, characterized in that, The filter mesh cover (902) slides relative to the inner wall of the filtering installation cylinder (901). A first magnetic block (9042) is fixedly connected to the top end of the filter mesh cover (902). A second magnetic block (9041) is fixedly connected to the surface of the first driving rotating shaft (402). The second magnetic block (9041) corresponds to the position of the first magnetic block (9042).

5. The pipe jacking construction tunneling equipment according to claim 1, characterized in that, The first opening (1012) is located at the bottom end of the partition plate (101). The second opening (1011) is located at the top end of the partition plate (101).

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