Tunnel blasting dust settling device

Abstract

The utility model relates to the technical field of tunnel dust settling equipment, in particular to a tunnel blasting dust settling device which is composed of a vortex ring air duct, a spraying system, a plurality of nozzles, a water conveying assembly, a rotating disc, an adjusting support, a lifting rod, a piston assembly, a water pump, a water storage tank, a base and a connecting shaft. The vortex ring air cylinder and the water storage tank are fixed on the base, the water tank is arranged behind the vortex ring air cylinder, the water pump and the switch are arranged in the water tank, water is conveyed to the spraying system at the vortex ring air cylinder opening through the water conveying assembly, and the vortex ring air cylinder is aligned with a designated area by adjusting the angle through the support, the lifting rod and the rotating disc on the base. The vortex ring air duct generates a vortex ring through movement of the piston assembly, and water mist is sprayed out through the multiple spray heads. The dust settling device is suitable for a dust settling link in tunnel blasting engineering, tunnel dust is purified by manufacturing vortex rings and liquid mist, and the dust settling device is a low-cost, simple, high-efficiency and green dust settling mode.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel blasting engineering dust settling equipment, in particular to a tunnel blasting dust settling device, which is suitable for the dust settling link in the later stage of the tunnel blasting engineering. Background Art

[0002] Tunnel blasting engineering refers to the process of excavating tunnels, which often requires the use of gunpowder to blast the face. When the tunnel is long, due to the narrow space inside the tunnel and poor ventilation conditions, the dust generated after the face blasting is difficult to be quickly discharged by the tunnel ventilation system, resulting in excessive concentration of dust particles in the tunnel, reducing visibility and air quality in the tunnel, affecting construction efficiency, and increasing the risk of illness for workers. Therefore, the dust generated after blasting on the face requires more efficient purification devices.

[0003] The existing dust purification method after tunnel blasting is mostly spraying water, but this purification method has the disadvantages of long process time, inability to adjust the spray position, short action distance and low efficiency. Chinese patent CN 219061745 U discloses a fast ventilation and dust removal device for large-section blasting construction of highway tunnels. The patent application is provided with a blowing mechanism and a water spraying mechanism on the top side of the mobile component, so that the side shaft frame is driven to rotate by the output power of the electric rotating seat and the drive shaft is driven to rotate by the output power of the upper reduction motor, so that the wind cover and the truncated cone shell are aligned with the part that needs ventilation, and the output shaft and the fan blade are driven by the motor to rotate, and the water mist generated by the water spraying mechanism is added, so that the air inside the tunnel can be ventilated quickly, and the dust is reduced by the water mist. However, in the actual use of the above equipment, the vortex ring principle is not combined to carry out dust settling work, and no constraints are added at the end of the blowing mechanism, which has little effect on improving the dust settling efficiency. At the same time, the fan may cause structural instability due to the vibration generated by the motor during operation.

[0004] Chinese patent CN 115212684 A discloses a remote dust removal fog cannon based on the vortex ring principle. The patent application is provided with a rotating support plate at the upper end of the fog cannon installation box, a mounting support frame is provided at the upper end of the rotating support plate, a fog cannon barrel is provided at the upper end of the mounting support frame, and an adjusting lifting rod is provided on the upper end surface of the rotating support plate below the fog cannon barrel, and a vortex ring is continuously formed through the fog cannon barrel. However, in actual use, the above equipment does not combine the method of spraying water mist to carry out dust sedimentation work, and does not set up water storage equipment and spray system, but only blows away the dust, which will not be able to effectively carry out dust sedimentation work in narrow tunnels and cannot provide a good environment for tunnel construction.

[0005] Chinese patent CN 116379045 A discloses a vortex ring generating device with a variable inner diameter of an annular outlet, which includes a housing, a disc base and an annular plate sliding structure. The fluid in the housing is injected into the external fluid through an annular opening, and a vortex ring is formed at the annular opening; the annular plate slider motion structure changes the inner diameter of the annular outlet by deformation, thereby adjusting the movement direction and movement speed of the vortex. However, in actual use, the above-mentioned device is also not combined with a spray system for dust removal, and is not provided with an adjustment component and a connection component. During the construction process, it can neither maintain the stability of the structure nor improve the efficiency of dust removal. Summary of the invention

[0006] In view of the above problems, the utility model provides a tunnel blasting dust settling device, which adopts a vortex ring wind tube combined with a spray system to improve the efficiency of dust settling. The vortex ring airflow has the characteristics of stable structure and long action distance. The surrounding airflow of the vortex ring will be firmly adsorbed near the vortex line and keep rotating, and it is not easy to disperse. The surrounding airflow will separate the vortex line from the surrounding air, which can reduce the friction between the vortex line and the air, so that the vortex ring can stably act forward for a long distance. The vortex ring rotates continuously while moving forward, and can carry a large amount of water mist while acting forward. The water mist moves continuously under the action of the surrounding airflow, so that the contact between the water mist and the dust is more sufficient, and the capture rate of the water mist to the dust is improved, thereby improving the efficiency of dust settling. For this reason, we propose a remote dust settling device based on the vortex ring principle. Secondly, the utility model is provided with an adjustment device, which can adjust the angle of the wind tube of the vortex ring, making the structure more stable and making the implementation process of the dust settling work more convenient and flexible, the construction method is simple, and the construction equipment requirements are less, which has broad application prospects in the field of tunnel dust settling engineering.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: providing a tunnel blasting dust settling device, the components of which include a vortex ring wind tube, a spray system, multiple nozzles, a water delivery component, a turntable, an adjustment bracket, a lifting rod, a piston assembly, a water pump, a water storage tank, a base and a connecting shaft. The specific structure and connection relationship of the components are as follows:

[0008] A piston assembly that can move axially along the connecting shaft is provided inside the vortex ring air cylinder, and adjustment brackets are provided on both sides of the vortex ring air cylinder, and the adjustment brackets are welded to the turntable. A lifting rod is provided on the rear side of the vortex ring air cylinder, and a thread is provided at the connection between the lifting rod and the turntable. The turntable is connected to the longitudinal connecting shaft of the base through an adjusting gear, and the longitudinal connecting shaft of the base is connected to the base, and the longitudinal connecting shaft of the base is connected to the transverse connecting shaft of the base, and the connection between the transverse connecting shaft of the base and the lifting rod is connected by a thread. A water storage tank is provided on the rear side of the base, and a water pump is provided inside the water storage tank near the water outlet. The water pump is connected to the spray system at the mouth of the vortex ring air cylinder through a water delivery assembly, and the spray system is connected to multiple nozzles.

[0009] The connecting shaft is provided with a circular baffle at one end close to the vortex ring wind tube opening, and the connecting shaft is connected to the vortex ring wind tube at the closed end of the vortex ring wind tube.

[0010] A piston assembly is arranged at the joint between the connecting shaft and the vortex ring wind cylinder. The piston assembly is arranged inside the vortex ring wind cylinder and contacts the inner wall of the vortex ring wind cylinder.

[0011] The axial part of the piston assembly is provided with a through hole, the diameter of the through hole is the same as the diameter of the connecting shaft, and the piston is connected to the motor and started through the control panel.

[0012] The vortex ring air cylinder is connected to the adjusting brackets on both sides through adjusting gears, and the vortex ring air cylinder is connected to the lifting rod at the closed end of the vortex ring air cylinder.

[0013] The bottom of the adjusting bracket is welded on the turntable, the lifting rod is connected to the turntable through a thread, and the turntable is connected to the base through a connecting shaft.

[0014] The connecting shaft in the base is provided with a base adjustment component for adjusting the turntable and the lifting rod. The base adjustment component is connected to the turntable through a gear and a connecting shaft and is connected to the lifting rod through a thread. The base and the turntable are connected to the adjustment gear through the longitudinal connecting shaft of the base, and the lifting rod is connected to the transverse connecting shaft of the base through a thread.

[0015] The water storage tank is welded on the base, a water outlet is arranged at the bottom of the water storage tank, a water pump is arranged in the water tank near the water outlet, and the water outlet is connected to the water delivery component.

[0016] The water storage tank is connected to the spray system of the vortex ring wind cylinder through a water delivery component, and the water delivery component pumps water from the water storage tank to the spray system through a water pump.

[0017] The spray system is arranged in a ring shape at the air outlet of the vortex ring wind tube and passes through the vortex ring wind tube to be connected with a plurality of spray heads on the inner wall of the vortex ring wind tube. The plurality of spray heads can spray water mist into the vortex ring wind tube.

[0018] Compared with the existing tunnel dust settling device, the utility model has the following beneficial effects:

[0019] 1The main part consists of a vortex ring wind tube, a base and a spray water storage system, which simplifies the structure and can achieve green construction. At the same time, additives can be added to the water tank to improve the dust capture ability of the liquid mist;

[0020] 2. The control panel on the base can adjust the vortex ring wind tube angle, piston switch and water pump switch, which is easy to operate and convenient for construction;

[0021] 3. Can be flexibly deployed at designated locations in the tunnel by vehicles;

[0022] 4. The vortex ring wind tube is provided with a fixing adjustment bracket and a lifting rod and other adjustment systems, which makes the utility model more stable during operation;

[0023] 5. The vortex ring is combined with the spray. The vortex ring can move forward for a long distance while maintaining a stable structure. The vortex ring can carry a large amount of water mist during the movement, which improves the contact efficiency between the water mist and the dust. It saves costs while reducing the dust removal and settling time, and improves the efficiency of dust removal and settling.

[0024] The utility model is used for tunnel dust settling projects, provides a new green solution for tunnel dust settling, and combines economy, ease of use and universality, and has significant engineering value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural cross-sectional view of the utility model.

[0026] Figure 2 This is a schematic diagram of the connection structure between the spray system and the air duct of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the internal adjustment component of the base of the utility model;

[0028] Figure 4 This is a schematic diagram of the equipment tunnel working of the utility model;

[0029] Figure 5 This is a schematic diagram of the vortex ring effect produced by the utility model.

[0030] Marked in the figure are: vortex ring air cylinder 1, spray system 2, multiple nozzles 3, water delivery component 4, turntable 5, adjustment bracket 6, lifting rod 7, piston assembly 8, water pump 9, water storage tank 10, base 11, connecting shaft 12, circular baffle 13, adjusting gear 110, base longitudinal connecting shaft 111, base transverse connecting shaft 112, dust after tunnel blasting 201, water mist 202, control panel 203, vortex ring 204, and heading face 205. DETAILED DESCRIPTION

[0031] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] First of all, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] like Figure 1 As shown, the tunnel blasting dust settling device described in the utility model comprises a vortex ring wind tube 1, a spray system 2, a plurality of nozzles 3, a water delivery component 4, a turntable 5, an adjustment bracket 6, a lifting rod 7, a piston component 8, a water pump 9, a water storage tank 10, a base 11, a connecting shaft 12 and a circular baffle 13. The specific structure and connection relationship of the components are as follows:

[0035] A piston assembly 8 is provided inside the vortex ring air cylinder 1, and the piston assembly 8 can make axial movement along the connecting shaft 12; adjustment brackets 6 are provided on both sides of the vortex ring air cylinder 1, and the adjustment brackets 6 are welded on the turntable 5; a lifting rod 7 is provided on the rear side of the vortex ring air cylinder 1, and a thread is provided at the connection between the lifting rod 7 and the turntable 5; the turntable 5 is connected to the longitudinal connecting shaft 111 of the base through an adjusting gear 110, and the longitudinal connecting shaft 111 of the base is connected to the base 11, and the longitudinal connecting shaft 111 of the base is connected to the transverse connecting shaft 112 of the base, and the connection between the transverse connecting shaft 112 of the base and the lifting rod 7 is connected by a thread; a water storage tank 10 is provided on the rear side of the base 11, and a water pump 9 is provided inside the water storage tank 10 near the water outlet, and the water pump 9 is connected to the spray system 2 at the outlet of the vortex ring air cylinder 1 through a water delivery assembly 4, and the spray system 2 is connected to multiple nozzles 3, and water mist is sprayed through multiple nozzles 3.

[0036] like Figure 2 As shown, the water delivery component 4 delivers water to the spray system 2 and then sprays water mist through multiple nozzles 3 along the axis perpendicular to the inner wall direction of the vortex ring wind tube 1.

[0037] like Figure 3 As shown, the adjusting gear 110 is movably connected to the longitudinal connecting shaft 111 of the base and can rotate. A thread is provided at the joint between the lifting rod 7 and the transverse connecting shaft 112 of the base. The transverse connecting shaft 112 of the base is connected to the longitudinal connecting shaft 111 of the base, and the longitudinal connecting shaft 111 of the base is welded to the base 11.

[0038] like Figure 5As shown, the vortex ring 204 maintains a stable structure during the forward action while the vortex ring 204 itself is constantly rotating and expanding.

[0039] The connecting shaft 12 is provided with a circular baffle 13 at one end close to the vortex ring air cylinder opening, and the connecting shaft 12 is connected to the vortex ring air cylinder 1 at the closed end of the vortex ring air cylinder.

[0040] A piston assembly 8 is provided at the joint between the connecting shaft 12 and the vortex ring air cylinder 1. The piston assembly 8 is arranged inside the vortex ring air cylinder 1 and contacts the inner wall of the vortex ring air cylinder.

[0041] The axial part of the piston assembly 8 is provided with a through hole, the diameter of the through hole is the same as the diameter of the connecting shaft 12, the piston of the piston assembly 8 is connected to the motor and started through the control panel, and the piston slides along the connecting shaft when working, and pushes the gas out of the vortex ring wind cylinder outlet to form a vortex ring.

[0042] The vortex ring air cylinder 1 is connected to the adjustment brackets 6 on both sides through the adjustment gear 110, and the vortex ring air cylinder 1 is connected to the lifting rod 7 at the closed end of the vortex ring air cylinder. The adjustment bracket 6 and the lifting rod 7 adjust the angle of the vortex ring air cylinder through the control panel.

[0043] The bottom of the adjusting bracket 6 is welded on the turntable 5, the lifting rod 7 is connected to the turntable 5 through a thread, and the turntable 5 is connected to the base 11 through a connecting shaft.

[0044] The connecting shaft in the base 11 is provided with a base adjustment component for adjusting the turntable 5 and the lifting rod 7. The base adjustment component is connected to the turntable 5 through a gear and a connecting shaft and is connected to the lifting rod 7 through a thread.

[0045] The water tank 10 is connected to the base 11 by welding. A water outlet is arranged at the bottom of the water tank 10 . A water pump 9 is arranged in the water tank near the water outlet. The water outlet is connected to the water delivery component 4 .

[0046] The water storage tank 10 is connected to the spray system 2 at the tube mouth of the vortex ring wind tube 1 through the water delivery component 4, and the water delivery component 4 pumps water from the water storage tank 10 to the spray system 2 through the water pump 9.

[0047] The spray system 2 is annularly arranged at the air outlet of the vortex ring wind tube 1 and passes through the vortex ring wind tube 1 to be connected with multiple nozzles 3 on the inner wall of the vortex ring wind tube. The multiple nozzles 3 can spray water mist into the vortex ring wind tube.

[0048] The base 11 is connected to the turntable 5 via a base longitudinal connecting shaft 111 and an adjusting gear 110 . The adjusting gear 110 can make the turntable 5 rotate. The lifting rod 7 is connected to the base transverse connecting shaft 112 via a thread.

[0049] Working principle and process:

[0050] The working process of the tunnel blasting dust settling device of the utility model is as follows: ① add water to the water storage tank 10 → ② place the air outlet of the equipment at an appropriate position facing the tunnel face → ③ adjust the air outlet angle through the control panel 203 → ④ start the water delivery component 4, the spray system 2 and the piston component 8 through the control panel 203 to perform dust settling. Figure 4 As shown, after the dust settling device is placed in the tunnel, the angle and the control switch are adjusted through the control panel 203. After the tunnel blasting dust settling device is started, a vortex ring 204 and a water mist 202 are generated. While acting forward, the vortex ring 204 carries the water mist 202 and diffuses it to the dust 201 area generated after the blasting of the face 205. The movement of the vortex ring airflow increases the contact rate between the dust and the water mist, thereby improving the settling effect.

Claims

1. A tunnel blasting dust settling device, comprising a vortex ring wind tube, a spray system, a plurality of nozzles, a water delivery assembly, a turntable, an adjustment bracket, a lifting rod, a piston assembly, a water pump, a water storage tank, a base and a connecting shaft, characterized in that: The specific structure and connection relationship of the components are as follows: A piston assembly that can move axially along the connecting shaft is provided inside the vortex ring air cylinder, and adjustment brackets are provided on both sides of the vortex ring air cylinder, and the adjustment brackets are welded to the turntable. A lifting rod is provided on the rear side of the vortex ring air cylinder, and a thread is provided at the connection between the lifting rod and the turntable. The turntable is connected to the longitudinal connecting shaft of the base through an adjusting gear, and the longitudinal connecting shaft of the base is connected to the base, and the longitudinal connecting shaft of the base is connected to the transverse connecting shaft of the base, and the connection between the transverse connecting shaft of the base and the lifting rod is connected by a thread. A water storage tank is provided on the rear side of the base, and a water pump is provided inside the water storage tank near the water outlet. The water pump is connected to the spray system at the mouth of the vortex ring air cylinder through a water delivery assembly, and the spray system is connected to multiple nozzles.

2. The tunnel blasting dust settling device according to claim 1, characterized in that: The connecting shaft is provided with a circular baffle at one end close to the vortex ring wind tube opening, and the connecting shaft is connected to the vortex ring wind tube at the closed end of the vortex ring wind tube.

3. The tunnel blasting dust settling device according to claim 1, characterized in that: A piston assembly is arranged at the joint between the connecting shaft and the vortex ring wind cylinder. The piston assembly is arranged inside the vortex ring wind cylinder and contacts the inner wall of the vortex ring wind cylinder.

4. The tunnel blasting dust settling device according to claim 3, characterized in that: The axial part of the piston assembly is provided with a through hole, the diameter of the through hole is the same as the diameter of the connecting shaft, and the piston is connected to the motor and started through the control panel.

5. The tunnel blasting dust settling device according to claim 1, characterized in that: The vortex ring air cylinder is connected to the adjusting brackets on both sides through adjusting gears, and the vortex ring air cylinder is connected to the lifting rod at the closed end of the vortex ring air cylinder.

6. The tunnel blasting dust settling device according to claim 5, characterized in that: The bottom of the adjusting bracket is welded on the turntable, the lifting rod is connected to the turntable through a thread, and the turntable is connected to the base through a connecting shaft.

7. The tunnel blasting dust settling device according to claim 6, characterized in that: The connecting shaft in the base is provided with a base adjustment component for adjusting the turntable and the lifting rod. The base adjustment component is connected to the turntable through a gear and a connecting shaft and is connected to the lifting rod through a thread. The base and the turntable are connected to the adjustment gear through the longitudinal connecting shaft of the base, and the lifting rod is connected to the transverse connecting shaft of the base through a thread.

8. The tunnel blasting dust settling device according to claim 1, characterized in that: The water storage tank is welded on the base, a water outlet is arranged at the bottom of the water storage tank, a water pump is arranged in the water tank near the water outlet, and the water outlet is connected to the water delivery component.

9. The tunnel blasting dust settling device according to claim 8, characterized in that: The water storage tank is connected to the spray system of the vortex ring wind cylinder through a water delivery component, and the water delivery component pumps water from the water storage tank to the spray system through a water pump.

10. The tunnel blasting dust settling device according to claim 8, characterized in that: The spray system is arranged in a ring shape at the air outlet of the vortex ring wind tube and passes through the vortex ring wind tube to be connected with a plurality of nozzles on the inner wall of the vortex ring wind tube. The plurality of nozzles can spray water mist into the vortex ring wind tube.

Images