Surrounding rock guniting device and guniting operation vehicle

Abstract

The invention belongs to the technical field of underground anchoring and shotcreting support, and particularly relates to a surrounding rock guniting device and a guniting operation vehicle. One end of the communicating assembly fixedly communicates with the side wall of the slurry box, and the other end of the communicating assembly fixedly communicates with the first end of a second electric control tee joint; the two adjustable guniting assemblies are fixedly communicated with the second end and the third end of the second electric control tee joint respectively; the two negative pressure assemblies are in one-to-one correspondence with the adjustable slurry spraying assemblies, the inlet ends of the negative pressure assemblies are correspondingly arranged at the outlet ends of the adjustable slurry spraying assemblies, the outlet ends of the negative pressure assemblies are fixedly communicated with the slurry box, and the negative pressure assemblies are used for collecting rebound materials and dust when the adjustable slurry spraying assemblies spray slurry; and the backwashing assembly fixedly communicates with the adjustable guniting assembly and the communicating assembly, and the backwashing assembly is used for backwashing the interiors of the adjustable guniting assembly and the communicating assembly after guniting is completed. According to the device, springback materials and dust in the guniting process can be collected, and the service life of the device is prolonged through automatic backwashing.

Description

Technical Field

[0001] The present invention belongs to the technical field of underground bolt-shotcrete support, and particularly relates to a surrounding rock shotcreting device and a shotcreting operation vehicle. Background Art

[0002] During the tunneling process of underground roadways, in order to ensure the safety of tunneling, it is necessary to timely bolt-shotcrete support the excavated roadways. In related technologies, the bolt-shotcrete support of the tunneling roadway is mostly bolt-shotcrete support, that is, the support of the roadway surrounding rock is realized by bolts and shotcrete. However, in related technologies, the shotcrete support is mostly completed by underground workers, with a large labor intensity and low support efficiency.

[0003] The surrounding rock shotcreting device disclosed in the prior art cannot collect and process the rebound material and dust generated during the shotcreting process, which is likely to cause serious pollution in the roadway. At the same time, it does not have a self-cleaning function and cannot perform automatic backwashing after shotcreting, resulting in a reduced service life of the device.

[0004] Therefore, it is necessary to design a surrounding rock shotcreting device and a shotcreting operation vehicle to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a surrounding rock shotcreting device and a shotcreting operation vehicle to solve the above problems, so as to achieve the purpose of collecting the rebound material and dust during the shotcreting process to reduce the pollution in the roadway and extending the service life of the device through automatic backwashing.

[0006] To achieve the above purpose, the present invention provides the following solutions: A surrounding rock shotcreting device, including

[0007] A slurry tank;

[0008] A connecting component, one end of which is fixedly connected to the side wall of the slurry tank, and the other end of the connecting component is fixedly connected to the first end of a second electric control three-way joint;

[0009] Two adjustable shotcreting components, which are respectively fixedly connected to the second end and the third end of the second electric control three-way joint;

[0010] Two negative pressure components, corresponding to the adjustable shotcreting components one by one. The inlet end of the negative pressure component is correspondingly arranged at the outlet end of the adjustable shotcreting component, and the outlet end of the negative pressure component is fixedly connected to the slurry tank. The negative pressure component is used to collect the rebound material and dust when the adjustable shotcreting component sprays the slurry;

[0011] A backwashing component, which is fixedly connected to the adjustable shotcreting component and the connecting component, and the backwashing component is used to perform backwashing on the inside of the adjustable shotcreting component and the connecting component after shotcreting is completed.

[0012] Based on the surrounding rock shotcreting device of the present invention, the adjustable shotcreting assembly includes an outer sleeve. One end of the outer sleeve is fixedly communicated with the second end or the third end of the second electric control three-way. The other end of the outer sleeve is hermetically and slidably connected with an inner sliding cylinder. One end of the inner sliding cylinder located outside the outer sleeve is fixedly communicated with a shotcreting head. The bottom of the outer side wall of the outer sleeve is fixedly connected with the fixed end of the telescopic part. The telescopic end of the telescopic part is fixedly connected with one end of the inner sliding cylinder close to the shotcreting head. The inlet end of the negative pressure assembly is arranged at one end of the inner sliding cylinder close to the shotcreting head.

[0013] Based on the surrounding rock shotcreting device of the present invention, the telescopic part includes a telescopic rod. The fixed end of the telescopic rod is fixedly connected with the bottom of the outer side wall of the outer sleeve. The telescopic end of the telescopic rod is fixedly connected with a connecting plate. The connecting plate is fixedly connected with one end of the inner sliding cylinder close to the shotcreting head.

[0014] Based on the surrounding rock shotcreting device of the present invention, the negative pressure assembly includes a negative pressure disc. The negative pressure disc is fixedly connected to one end of the inner sliding cylinder close to the shotcreting head. The negative pressure disc is frustum-shaped. The large mouth end of the negative pressure disc faces the shotcreting head. One end of a first negative pressure pipe is fixedly communicated with the small mouth end of the negative pressure disc. The number of the first negative pressure pipes is two and they are symmetrically arranged on both sides of the outer sleeve. The other ends of the two first negative pressure pipes are jointly fixedly communicated with an annular pipe. The annular pipe is fixedly sleeved on the outer side of the outer sleeve. One end of a second negative pressure pipe is fixedly communicated with the annular pipe. The other end of the second negative pressure pipe is fixedly communicated with the slurry tank. The slurry tank is fixedly communicated with a negative pressure driving part.

[0015] Based on the surrounding rock shotcreting device of the present invention, the first negative pressure pipe is a corrugated telescopic pipe.

[0016] Based on the surrounding rock shotcreting device of the present invention, the negative pressure driving part includes a negative pressure machine. The negative pressure machine is fixedly arranged on the top of the slurry tank and is communicated with the inside of the slurry tank.

[0017] Based on the surrounding rock shotcreting device of the present invention, the connecting component includes a slurry pump. The inlet end of the slurry pump is fixedly communicated with the side wall of the slurry tank. The outlet end of the slurry pump is fixedly communicated with the first end of a first electric control three-way. The second end of the first electric control three-way is fixedly communicated with an adapter. One end of a slurry outlet pipe is fixedly communicated with the adapter. The other end of the slurry outlet pipe is fixedly communicated with the first end of the second electric control three-way. The third end of the first electric control three-way is fixedly communicated with the backwashing assembly.

[0018] Based on the surrounding rock shotcreting device of the present invention, the backwashing assembly includes a cleaning water tank and a waste water tank. The side wall of the cleaning water tank is fixedly communicated with the inlet end of a water pump. The outlet end of the water pump is fixedly communicated with one end of a water outlet pipe. The other end of the water outlet pipe is fixedly communicated with one of the adjustable shotcreting assemblies. An electric control valve is arranged at the other end of the water outlet pipe. The waste water tank is fixedly communicated with the third end of the first electric control three-way through a waste water pipe.

[0019] Based on the surrounding rock shotcreting device of the present invention, a grouting pipe is fixedly communicated with the top wall of the slurry tank.

[0020] A shotcreting operation vehicle includes a surrounding rock shotcreting device and a vehicle body. The surrounding rock shotcreting device is arranged on the vehicle body, and a protective cover is arranged outside the surrounding rock shotcreting device.

[0021] Compared with the prior art, the present invention has the following advantages and technical effects:

[0022] Through the negative pressure assembly provided by the present invention, the rebound materials and dust generated during the shotcreting process of the adjustable shotcreting assembly can be collected, reducing the shotcreting pollution in the roadway, and the collected rebound materials and dust can be transported into the slurry tank for secondary utilization, having the technical effect of resource conservation. The backwashing assembly provided can automatically wash the inside of the connection assembly and the adjustable shotcreting assembly after the device finishes shotcreting, thereby prolonging the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0024] Figure 1 It is a schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram inside the protective cover of the present invention;

[0026] Figure 3 For Figure 2 The partial enlarged view of A in

[0027] Figure 4 It is a schematic diagram of Embodiment II of the present invention;

[0028] Figure 5 It is a schematic diagram of Embodiment III of the present invention.

[0029] Among them, 1. vehicle body; 2. protective cover; 3. slurry tank; 4. negative pressure machine; 5. grouting pipe; 6. slurry pump; 7. first electric control three-way valve; 8. adapter seat; 9. slurry outlet pipe; 10. second electric control three-way valve; 11. outer sleeve; 12. inner sliding cylinder; 13. negative pressure plate; 14. telescopic rod; 15. connecting plate; 16. spraying head; 17. first negative pressure pipe; 18. annular pipe; 19. second negative pressure pipe; 20. cleaning water tank; 21. water pump; 22. water outlet pipe; 23. electric control valve; 24. waste water pipe; 25. waste water tank; 26. lift pump; 27. filter cover; 28. return water pipe; 29. support frame; 30. spring. Detailed implementation manner

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0032] Embodiment 1:

[0033] Referring to Figures 1 to 3 as shown, this embodiment provides a surrounding rock spraying device, including

[0034] a slurry tank 3;

[0035] a communication component, one end of which is fixedly communicated with the side wall of the slurry tank 3, and the other end of the communication component is fixedly communicated with the first end of a second electric control three-way valve 10;

[0036] two adjustable spraying components, which are respectively fixedly communicated with the second end and the third end of the second electric control three-way valve 10;

[0037] two negative pressure components, corresponding to the adjustable spraying components one by one, the inlet end of the negative pressure component is correspondingly arranged at the outlet end of the adjustable spraying component, and the outlet end of the negative pressure component is fixedly communicated with the slurry tank 3. The negative pressure component is used to collect rebound materials and dust when the adjustable spraying component sprays slurry;

[0038] an anti-flushing component, which is fixedly communicated with the adjustable spraying component and the communication component, and the anti-flushing component is used to perform anti-flushing on the inside of the adjustable spraying component and the communication component after spraying is completed.

[0039] The provided negative pressure component can collect the rebound material and dust generated by the adjustable shotcreting component during the shotcreting process, reduce the shotcreting pollution in the roadway, and can transport the collected rebound material and dust into the slurry tank for secondary utilization, having the technical effect of resource conservation. The provided backwashing component can automatically wash the inside of the connecting component and the adjustable shotcreting component after the device finishes shotcreting, thereby extending the service life of the device.

[0040] Further, the adjustable shotcreting component includes an outer sleeve 11. One end of the outer sleeve 11 is fixedly communicated with the second end or the third end of the second electric control three-way 10. The other end of the outer sleeve 11 is hermetically and slidably connected with an inner sliding cylinder 12. One end of the inner sliding cylinder 12 located outside the outer sleeve 11 is fixedly communicated with a shotcreting head 16. The bottom of the outer side wall of the outer sleeve 11 is fixedly connected with the fixed end of the telescopic part. The telescopic end of the telescopic part is fixedly connected with one end of the inner sliding cylinder 12 close to the shotcreting head 16. The inlet end of the negative pressure component is arranged at one end of the inner sliding cylinder 12 close to the shotcreting head 16.

[0041] Further, the telescopic part includes a telescopic rod 14. The fixed end of the telescopic rod 14 is fixedly connected with the bottom of the outer side wall of the outer sleeve 11. The telescopic end of the telescopic rod 14 is fixedly connected with a connecting plate 15. The connecting plate 15 is fixedly connected with one end of the inner sliding cylinder 12 close to the shotcreting head 16.

[0042] Further, the negative pressure component includes a negative pressure disc 13. The negative pressure disc 13 is fixedly connected to one end of the inner sliding cylinder 12 close to the shotcreting head 16. The negative pressure disc 13 is frustum-shaped, with the large end of the negative pressure disc 13 facing the shotcreting head 16. One end of a first negative pressure pipe 17 is fixedly communicated with the small end of the negative pressure disc 13. The number of the first negative pressure pipes 17 is two and they are symmetrically arranged on both sides of the outer sleeve 11. The other ends of the two first negative pressure pipes 17 are jointly fixedly communicated with an annular pipe 18. The annular pipe 18 is fixedly sleeved on the outside of the outer sleeve 11. One end of a second negative pressure pipe 19 is fixedly communicated with the annular pipe 18. The other end of the second negative pressure pipe 19 is fixedly communicated with the slurry tank 3. The slurry tank 3 is fixedly communicated with a negative pressure driving part.

[0043] Further, the first negative pressure pipe 17 is a corrugated telescopic pipe.

[0044] Further, the negative pressure driving part includes a negative pressure machine 4. The negative pressure machine 4 is fixedly arranged on the top of the slurry tank 3 and is communicated with the inside of the slurry tank 3.

[0045] Further, the connecting component includes a slurry pump 6. The inlet end of the slurry pump 6 is fixedly communicated with the side wall of the slurry tank 3. The outlet end of the slurry pump 6 is fixedly communicated with the first end of a first electric control three-way 7. The second end of the first electric control three-way 7 is fixedly communicated with an adapter seat 8. One end of a slurry outlet pipe 9 is fixedly communicated with the adapter seat 8. The other end of the slurry outlet pipe 9 is fixedly communicated with the first end of the second electric control three-way 10. The third end of the first electric control three-way 7 is fixedly communicated with the backwashing component.

[0046] Furthermore, the backwashing assembly includes a cleaning water tank 20 and a waste water tank 25. The side wall of the cleaning water tank 20 is fixedly communicated with the inlet end of a water pump 21. The outlet end of the water pump 21 is fixedly communicated with one end of a water outlet pipe 22. The other end of the water outlet pipe 22 is fixedly communicated with one of the adjustable shotcrete assemblies. An electric control valve 23 is arranged at the other end of the water outlet pipe 22. The waste water tank 25 is fixedly communicated with the third end of a first electric control three-way valve 7 through a waste water pipe 24.

[0047] Furthermore, a grouting pipe 5 is fixedly communicated with the top wall of the slurry tank 3.

[0048] The shotcrete operation vehicle includes a surrounding rock shotcrete device and a vehicle body 1. The surrounding rock shotcrete device is arranged on the vehicle body 1, and a protective cover 2 is arranged outside the surrounding rock shotcrete device.

[0049] The working process of this embodiment is as follows:

[0050] The working process of this embodiment is divided into three stages: the preparation stage, the shotcrete stage, and the backwashing stage;

[0051] Preparation stage:

[0052] Add the slurry used for shotcrete into the slurry tank 3 through the grouting pipe 5, then block the grouting pipe 5 with a plugging head, transport the shotcrete device to the position where shotcrete is required through the vehicle body 1, and adjust the telescopic length of the telescopic rod 14 to move the shotcrete head 16 to a suitable position for shotcrete;

[0053] Shotcrete stage:

[0054] Start the slurry pump 6 and the negative pressure machine 4. The slurry pump 6 pumps the slurry in the slurry tank 3 into the outer sleeve 11 and the inner sliding cylinder 12, and finally sprays it out through the shotcrete head 16 and sprays it onto the roadway surface. During the shotcrete process, the negative pressure machine 4 creates a negative pressure environment in the slurry tank 3. The slurry tank 3 is communicated with the negative pressure disc 13 through the second negative pressure pipe 19, the annular pipe 18, and the first negative pressure pipe 17, so as to form a negative pressure environment near the shotcrete head 16, collect the rebound material and dust during the spraying process through negative pressure, and recycle the collected rebound material and dust into the slurry tank 3 for secondary use. During the shotcrete process, the electric control valve 23 is in a closed state;

[0055] Backwashing stage:

[0056] After the shotcrete is completed, close the first end of the first electric control three-way valve 7 and the two shotcrete heads 16, and open the water pump 21, the electric control valve 23, the three ports of the second electric control three-way valve 10, the second end and the third end of the first electric control three-way valve 7. The water pump 21 pumps the cleaning water in the cleaning water tank 20 into the outer sleeve 11, the inner sliding cylinder 12, and the slurry outlet pipe 9 to wash their interiors. The waste water after washing enters the waste water tank 25 through the second end and the third end of the first electric control three-way valve 7 for collection.

[0057] Example Two:

[0058] Referring to Figure 4 As shown, the difference between this embodiment and Embodiment One is that a recycling component is provided in the wastewater tank 25. The recycling component includes a lift pump 26. The lift pump 26 is fixedly arranged at the inner bottom end of the wastewater tank 25. A filter cover 27 is provided outside the lift pump 26. One end of a return water pipe 28 is fixedly communicated with the outlet end of the lift pump 26, and the other end of the return water pipe 28 is located above the inside of the cleaning water tank 20.

[0059] In this embodiment, after the wastewater generated during the backwashing process enters the wastewater tank 25, the lift pump 26 works to pump the wastewater into the return water pipe 28 and further return it to the cleaning water tank 20 for recycling. During the working process of the lift pump 26, the filter cover 27 filters the wastewater to filter out the solid impurities in the wastewater and prevent them from entering the lift pump 26.

[0060] Example Three:

[0061] Referring to Figure 5 As shown, the difference between this embodiment and Embodiment One is that a support frame 29 is fixedly connected to the top end of the protective cover 2. The support frame 29 is located outside the outer sleeve 11. One ends of a number of springs 30 are fixedly connected to the inner side wall of the support frame 29, and the other ends of the springs 30 are fixedly connected to the outer side wall of the outer sleeve 11. The springs 30 are arranged at equal intervals circumferentially along the outer side wall of the outer sleeve 11.

[0062] In this embodiment, the springs 30 can absorb the vibration energy during the spraying process of the outer sleeve 11, ensure the stability during the spraying process of the outer sleeve 11, reduce the vibration and wear degree of the outer sleeve 11, and extend the service life of the device.

[0063] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0064] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope of the present invention.

Claims

1. Surrounding rock shotcreting device, characterized in that, including a slurry tank (3); a connecting component, one end of which is fixedly connected to the side wall of the slurry tank (3), and the other end of the connecting component is fixedly connected to the first end of a second electrically controlled three-way valve (10); two adjustable slurry spraying components, which are respectively fixedly connected to the second end and the third end of the second electrically controlled three-way valve (10); two negative pressure components, which correspond to the adjustable slurry spraying components one by one. The inlet end of the negative pressure component is correspondingly arranged at the outlet end of the adjustable slurry spraying component, and the outlet end of the negative pressure component is fixedly connected to the slurry tank (3). The negative pressure component is used to collect rebound material and dust when the adjustable slurry spraying component sprays slurry; a backwashing component, which is fixedly connected to the adjustable slurry spraying component and the connecting component. The backwashing component is used to perform backwashing on the inside of the adjustable slurry spraying component and the connecting component after slurry spraying is completed.

2. The surrounding rock shotcreting device according to claim 1, characterized in that, The adjustable slurry spraying component includes an outer sleeve (11). One end of the outer sleeve (11) is fixedly connected to the second end or the third end of the second electrically controlled three-way valve (10). The other end of the outer sleeve (11) is hermetically and slidably connected to an inner sliding cylinder (12). One end of the inner sliding cylinder (12) located outside the outer sleeve (11) is fixedly connected to a slurry spraying head (16). The bottom of the outer side wall of the outer sleeve (11) is fixedly connected to the fixed end of a telescopic part, and the telescopic end of the telescopic part is fixedly connected to one end of the inner sliding cylinder (12) close to the slurry spraying head (16). The inlet end of the negative pressure component is arranged at one end of the inner sliding cylinder (12) close to the slurry spraying head (16).

3. The surrounding rock shotcreting device according to claim 2, wherein, The telescopic part includes a telescopic rod (14). The fixed end of the telescopic rod (14) is fixedly connected to the bottom of the outer side wall of the outer sleeve (11), and the telescopic end of the telescopic rod (14) is fixedly connected to a connecting plate (15). The connecting plate (15) is fixedly connected to one end of the inner sliding cylinder (12) close to the slurry spraying head (16).

4. The surrounding rock shotcreting device according to claim 2, characterized in that, The negative pressure component includes a negative pressure disc (13). The negative pressure disc (13) is fixedly connected to one end of the inner sliding cylinder (12) close to the slurry spraying head (16). The negative pressure disc (13) is frustum-shaped, the large end of the negative pressure disc (13) faces the slurry spraying head (16), and the small end of the negative pressure disc (13) is fixedly connected to one end of a first negative pressure pipe (17). The number of the first negative pressure pipes (17) is two and they are symmetrically arranged on both sides of the outer sleeve (11). The other ends of the two first negative pressure pipes (17) are jointly fixedly connected to a ring pipe (18). The ring pipe (18) is fixedly sleeved on the outer side of the outer sleeve (11). The ring pipe (18) is fixedly connected to one end of a second negative pressure pipe (19), and the other end of the second negative pressure pipe (19) is fixedly connected to the slurry tank (3). The slurry tank (3) is fixedly connected to a negative pressure driving part.

5. The surrounding rock shotcreting device according to claim 4, characterized in that, The first negative pressure pipe (17) is a corrugated telescopic pipe.

6. The surrounding rock shotcreting device according to claim 4, characterized in that, The negative pressure driving part includes a negative pressure machine (4). The negative pressure machine (4) is fixedly arranged at the top of the slurry tank (3) and is communicated with the inside of the slurry tank (3).

7. The surrounding rock shotcreting device according to claim 1, characterized in that, The connected component includes a slurry pump (6), the inlet end of the slurry pump (6) is fixedly communicated with the side wall of the slurry tank (3), the outlet end of the slurry pump (6) is fixedly communicated with the first end of a first electrically controlled three-way (7), the second end of the first electrically controlled three-way (7) is fixedly communicated with an adapter seat (8), one end of a slurry discharge pipe (9) is fixedly communicated with the adapter seat (8), the other end of the slurry discharge pipe (9) is fixedly communicated with the first end of a second electrically controlled three-way (10), and the third end of the first electrically controlled three-way (7) is fixedly communicated with the backwashing component.

8. The surrounding rock shotcreting device according to claim 7, characterized in that, The backwashing component includes a cleaning water tank (20) and a waste water tank (25), the inlet end of a water pump (21) is fixedly communicated with the side wall of the cleaning water tank (20), one end of a water outlet pipe (22) is fixedly communicated with the outlet end of the water pump (21), the other end of the water outlet pipe (22) is fixedly communicated with one of the adjustable slurry spraying components, an electrically controlled valve (23) is arranged at the other end of the water outlet pipe (22), and the waste water tank (25) is fixedly communicated with the third end of the first electrically controlled three-way (7) through a waste water pipe (24).

9. The surrounding rock shotcreting device according to claim 1, wherein, A grouting pipe (5) is fixedly communicated with the top wall of the slurry tank (3).

10. Shotcreting vehicle, characterized in that, It includes a surrounding rock slurry spraying device and a vehicle body (1), the surrounding rock slurry spraying device is arranged on the vehicle body (1), a protective cover (2) is arranged outside the surrounding rock slurry spraying device, and the surrounding rock slurry spraying device is the surrounding rock slurry spraying device according to any one of claims 1-9.

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