Foam dust removal device applied to tunnel drilling operation

Abstract

The utility model discloses a foam dust removal device applied to tunnel drilling operation, which belongs to the field of drilling dust removal and comprises a drilling machine, a foaming roller is rotatably arranged on one side of the drilling machine and comprises a feeding end and a discharging end, and a hollow drill rod is arranged at the front end of the drilling machine. The foaming roller is arranged in the hollow drill rod, the discharging end of the foaming roller is communicated with the hollow drill rod, the feeding end of the foaming roller comprises an air inlet end and a liquid inlet end, a plurality of grating plates are sequentially arranged in the foaming roller in the axis direction, and grating holes are formed in the grating plates. The drilling machine has the advantages that high-pressure gas and foam liquid are input into the foaming roller and mixed and foamed between the grating plates, rich foam is formed and flows into the hollow drill rod, drilling and dust removal are achieved at the same time, dust raising during drilling is reduced, and meanwhile water waste is reduced.

Description

Technical Field

[0001] The utility model relates to the field of drilling dust removal, in particular to a foam dust removal device used for tunnel drilling operations. Background Art

[0002] Tunnels are often drilled by breaking rocks, such as impact drilling equipment. In the process of drilling and breaking rocks, a large amount of dust will inevitably be generated, which has a serious impact on the health of construction workers and the safety and efficiency of the construction site. The presence of dust will not only reduce the visibility of the construction site, but also may aggravate the wear of mechanical equipment. In addition, long-term inhalation of dust containing a certain concentration will cause serious harm to human health, especially occupational diseases such as pneumoconiosis.

[0003] The existing low-dust drilling construction technology usually uses water drills, which use pressure to send water into the hole, and then flow out of the hole after combining with the dust. This method can effectively reduce dust in the hole, but water drills can easily deteriorate the surrounding rock conditions, resulting in hole collapse and hole bending. Traditional pneumatic drills use compressed air to flush out dust in the hole, supplemented by high-pressure water jetting on the outer surface of the hole to remove dust. This method ensures the quality of the hole, but a large amount of water will accumulate in the tunnel, resulting in a deterioration of the working environment.

[0004] Therefore, it is necessary to provide a dust removal device that improves the working environment while ensuring the quality of hole formation. Utility Model Content

[0005] The purpose of the utility model is to provide a foam dust removal device which can ensure the hole forming quality and improve the working environment.

[0006] The utility model is realized by such a technical scheme, a foam dust removal device applied to tunnel drilling operation, comprising a drilling rig, a foam roller rotatably arranged on one side of the drilling rig, the foam roller comprising a feed end and a discharge end, a hollow drill rod being arranged at the front end of the drilling rig, the discharge end of the foam roller being connected to the hollow drill rod, the feed end of the foam roller comprising an air inlet end and a liquid inlet end, a plurality of grid plates being sequentially arranged in the foam roller along the axial direction, and grid holes being opened on the grid plates.

[0007] The beneficial effects of the utility model are as follows: high-pressure gas and foam liquid are input into the foaming roller, the high-pressure gas and foam liquid are mixed and foamed between the grid plates, and rich foam is formed to flow into the hollow drill rod, so that dust is removed while drilling, the dust problem during drilling is reduced, and the problem of water waste is saved at the same time.

[0008] Preferably, the device comprises a mobile body, the drilling rig is mounted on the mobile body, a bracket is fixedly connected to the mobile body, and the foaming roller is rotatably mounted on the bracket.

[0009] The beneficial effect of the above preferred solution is that the device can be quickly moved to any working position by moving the vehicle body, and the bracket facilitates the stable rotation of the foaming drum.

[0010] Preferably, the grille holes on adjacent grille plates are staggered in position.

[0011] Preferably, the device includes an air pump and a foam liquid tank, both of which are installed on the mobile vehicle body, the air outlet end of the air pump is connected to the air inlet end of the foaming roller, and the liquid outlet end of the foam liquid tank is connected to the liquid inlet end of the foaming roller.

[0012] The beneficial effect of the above preferred solution is that the air pump and the foam liquid tank transmit high-pressure gas and foam liquid into the foaming drum.

[0013] Preferably, the foaming roller includes a feed port, a feed pipe is fixedly connected to the feed port, a tee is provided at one end of the feed pipe away from the foaming roller, the air outlet end of the air pump is connected to one end of the tee through a first pipe, and the liquid outlet end of the foam liquid tank is connected to the other end of the tee through a second pipe.

[0014] The beneficial effect of the above preferred solution is that the high-pressure gas and the foam liquid are mixed through the feed pipe and the tee.

[0015] Preferably, a water pump is installed on the top surface of the foam liquid tank, a water inlet end of the water pump is connected to a water inlet pipe, the water inlet pipe extends into the foam liquid tank, and a water outlet end of the water pump is connected to the second pipe.

[0016] The beneficial effect of the above preferred solution is that the foam liquid is extracted through the water pump and the water inlet pipe, which is more efficient and convenient to use.

[0017] Preferably, a feeding port is provided on the top surface of the foam liquid tank.

[0018] The beneficial effects of the above preferred solution are: it is convenient to add materials and clean the foam liquid tank after use.

[0019] Preferably, a one-way valve is provided on the first pipeline.

[0020] The beneficial effect of the above preferred solution is: preventing gas backflow.

[0021] Preferably, the hollow drill rod is provided with a power head and an angle adjustment unit.

[0022] The beneficial effect of the above preferred solution is that it is easy to adjust the angle of the hollow drill rod so that the dust removal angle and range are completely consistent with the drilling angle and range, and is suitable for dust removal requirements at various angles and ranges.

[0023] Preferably, universal wheels are provided at the bottom of the mobile vehicle body.

[0024] The beneficial effect of the above preferred solution is that it is easy to move the vehicle body in any direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a front view of the overall structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the foaming roller grille of the utility model;

[0028] In the figure: 1. mobile body; 2. bracket; 3. foaming roller; 31. grille plate; 4. foam liquid tank; 41. second pipeline; 42. water inlet pipeline; 43. feeding port; 44. water pump; 5. air pump; 51. first pipeline; 52. one-way valve; 6. tee; 7. feeding pipeline; 8. power head; 9. hollow drill rod; 10. angle adjustment unit; 11. universal wheel; 12. base; 13. bracket. DETAILED DESCRIPTION

[0029] In order to make the technical purpose, technical solution and beneficial effects of the present invention clearer, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] like Figures 1 to 3 As shown, a foam dust removal device used for tunnel drilling operations includes a drilling rig, a foaming roller 3 is rotatably provided on one side of the drilling rig, the foaming roller 3 includes a feeding end and a discharging end, a hollow drill rod 9 is provided at the front end of the drilling rig, the discharging end of the foaming roller 3 is connected to the hollow drill rod 9, the feeding end of the foaming roller 3 includes an air inlet end and a liquid inlet end, and a plurality of grid plates 31 are sequentially arranged in the foaming roller 3 along the axial direction, and the grid plates 31 are all provided with grid holes.

[0033] Preferably, the device comprises a mobile body 1 , the drilling rig is mounted on the mobile body 1 , a bracket 2 is fixedly connected to the mobile body 1 , and the foaming roller 3 is rotatably mounted on the bracket 2 .

[0034] Preferably, the positions of the grille holes on adjacent grille plates 31 are staggered.

[0035] In this embodiment, when it is necessary to perform dust removal for tunnel drilling, the mobile body 1 is driven to move the drilling rig to the position to be drilled, and the angle adjustment unit 10 is adjusted to align the hollow drill rod 9 with the position to be drilled to start working. At the same time, high-pressure gas is input into the air inlet end of the foaming roller 3, and foam liquid is input into the liquid inlet end. The foam liquid reacts with the high-pressure gas to produce rich and dense foam when passing through the grid plate 31. The foam enters the hollow drill rod 9 and is used for dust removal when the hollow drill rod 9 is drilling, thereby achieving dust removal while drilling, reducing the problem of dust during drilling, and saving water waste.

[0036] Specifically, the foaming roller 3 keeps rotating during use to avoid the foam liquid being deposited at the bottom of the foaming roller 3 and the grid holes being blocked. The grid holes may be round holes or square holes.

[0037] On the basis of this embodiment, the bracket 2 is further provided with a power source (not shown in the figure), and the power source directly drives the foaming roller 3 to rotate.

[0038] Example 2

[0039] like Figure 1 to Figure 2 As shown, preferably, on the basis of Example 1, the device includes an air pump 5 and a foam liquid tank 4, and the air pump 5 and the foam liquid tank 4 are both installed on the mobile body 1, the air outlet end of the air pump 5 is connected to the air inlet end of the foaming roller 3, and the liquid outlet end of the foam liquid tank 4 is connected to the liquid inlet end of the foaming roller 3.

[0040] Preferably, the foaming roller 3 includes a feed port, to which a feed pipe 7 is fixedly connected, and a tee 6 is provided at one end of the feed pipe 7 away from the foaming roller 3, the air outlet end of the air pump 5 is connected to one end of the tee 6 through a first pipe 51, and the liquid outlet end of the foam liquid tank 4 is connected to the other end of the tee 6 through a second pipe 41.

[0041] In this embodiment, the air pump 5 outputs high-pressure gas, which passes through the first pipe 51 and enters the tee 6. The foam liquid tank 4 outputs foam liquid, which passes through the second pipe 41 and enters the tee 6. The high-pressure gas and the foam liquid merge at the tee 6, and then enter the foaming drum 3 through the feed pipe 7, and the foaming process of the foam liquid is completed through the grid holes.

[0042] Specifically, the feed port of the foaming drum 3 is rotatably sealed with the feed pipe 7 , the discharge end of the foaming drum 3 is connected with a discharge pipe, the other end of the discharge pipe is connected to the hollow drill rod 9 , and the discharge pipe is rotatably sealed with the foaming drum 3 .

[0043] Example 3

[0044] like Figure 1 to Figure 2 As shown, preferably, on the basis of Embodiment 1-2, preferably, a water pump 44 is installed on the top surface of the foam liquid tank 4, the water inlet end of the water pump 44 is connected to a water inlet pipe 42, the water inlet pipe 42 extends into the foam liquid tank 4, and the water outlet end of the water pump 44 is connected to the second pipe 41.

[0045] Preferably, a feeding port 43 is provided on the top surface of the foam liquid tank 4 .

[0046] In this embodiment, the feeding port 43 can be used to add foam liquid, and the water inlet pipe 42 extends to the bottom of the foam liquid tank 4, so that the liquid in the foam liquid tank 4 can be emptied as much as possible to avoid waste and reduce the frequency of adding foam liquid during work; after the work is completed, the foam liquid tank 4 can also be cleaned through the feeding port 43.

[0047] Example 4

[0048] like Figure 1 to Figure 2 As shown, preferably, on the basis of Embodiments 1-3, a one-way valve 52 is provided on the first pipeline 51 .

[0049] In this embodiment, the one-way valve 52 can prevent the gas from flowing back.

[0050] Example 5

[0051] like Figure 1 to Figure 2 As shown, preferably, on the basis of embodiments 1-4, a power head 8 and an angle adjustment unit 10 are provided on the hollow drill rod 9.

[0052] In this embodiment, the drilling rig includes a base 12, the base 12 is fixedly connected to the mobile body 1, the hollow drill rod 9 is provided with a bracket 13, one end of the bracket 13 is hinged to the top of the base 12, and a power head 8 is installed at the tail of the hollow drill rod 9;

[0053] The angle adjustment unit 10 is a hydraulic telescopic rod, one end of which is hinged to the base 12, and the other end of which is hinged to the bracket 13, for adjusting the swing of the bracket 13, thereby driving the hollow drill rod 9 to adjust the angle to meet the dual needs of drilling and dust removal at different angles and ranges.

[0054] Example 6

[0055] like Figure 1 to Figure 2 As shown, preferably, on the basis of embodiments 1-5, a universal wheel 11 is provided at the bottom of the mobile body 1.

[0056] In this embodiment, the mobile body 1 drives the entire device to move in any direction through the universal wheel 11, and can quickly reach the location where drilling and dust removal are required, avoiding multiple transportation of the drill bit and dust removal device during the drilling process, saving the physical strength of the staff and reducing the chance of bumps during transportation, thereby improving work efficiency and increasing the service life of the device.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A foam dust removal device used in tunnel drilling operations, characterized in that: It includes a drilling rig, a foaming roller is rotatably arranged on one side of the drilling rig, the foaming roller includes a feeding end and a discharging end, a hollow drill rod is arranged at the front end of the drilling rig, the discharging end of the foaming roller is connected with the hollow drill rod, the feeding end of the foaming roller includes an air inlet end and a liquid inlet end, and a plurality of grid plates are sequentially arranged in the foaming roller along the axial direction, and the grid plates are all provided with grid holes.

2. A foam dust removal device for tunnel drilling operation as claimed in claim 1, characterized in that: The device comprises a mobile body, the drilling machine is installed on the mobile body, a bracket is fixedly connected to the mobile body, and the foaming roller is rotatably installed on the bracket.

3. A foam dust removal device for tunnel drilling operation as claimed in claim 1, characterized in that: The positions of the grille holes on adjacent grille plates are staggered.

4. A foam dust removal device for tunnel drilling operation as claimed in claim 2, characterized in that: The device includes an air pump and a foam liquid tank, both of which are installed on the mobile vehicle body, the air outlet of the air pump is connected to the air inlet of the foaming roller, and the liquid outlet of the foam liquid tank is connected to the liquid inlet of the foaming roller.

5. A foam dust removal device for tunnel drilling operation as claimed in claim 4, characterized in that: The foaming roller includes a feed port, a feed pipe is fixedly connected to the feed port, a tee is provided at one end of the feed pipe away from the foaming roller, the air outlet end of the air pump is connected to one end of the tee through a first pipe, and the liquid outlet end of the foam liquid tank is connected to the other end of the tee through a second pipe.

6. A foam dust removal device for tunnel drilling operation as claimed in claim 5, characterized in that: A water pump is installed on the top surface of the foam liquid tank. The water inlet end of the water pump is connected to a water inlet pipe, the water inlet pipe extends into the foam liquid tank, and the water outlet end of the water pump is connected to the second pipe.

7. A foam dust removal device for tunnel drilling operation as claimed in claim 4, characterized in that: The top surface of the foam liquid tank is provided with a feeding port.

8. A foam dust removal device for tunnel drilling operation as claimed in claim 5, characterized in that: A one-way valve is arranged on the first pipeline.

9. A foam dust removal device for tunnel drilling operation as claimed in claim 1, characterized in that: The hollow drill rod is provided with a power head and an angle adjustment unit.

10. A foam dust removal device for tunnel drilling operation as claimed in claim 2, characterized in that: The bottom of the mobile vehicle body is provided with universal wheels.

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