Dust falling equipment used after blasting of tunnel face

Abstract

The utility model discloses dust falling equipment used after tunnel face blasting, which comprises an assembly type hanger rail and a hanging type dust falling mechanism, the hanging type dust falling mechanism comprises a sliding block and a mounting seat, a first mounting plate and a second mounting plate are arranged at the bottom of the mounting seat in parallel, and a turntable is rotatably connected in the second mounting plate. A direct-current motor for driving the rotating disc to rotate forwards and backwards is arranged on the first mounting plate, a rotating rod is hinged to the middle of the upper portion of the second mounting plate through a rotating shaft, a long-strip-shaped hole is formed in the rotating rod, a limiting block matched with the long-strip-shaped hole is fixedly arranged on the rotating disc, and a mounting frame for mounting an atomizer is fixedly connected to the bottom of the rotating rod. A water outlet plate is arranged at a front-end water delivery port of the atomizer, and a rear-end water inlet of the atomizer is connected with a water delivery pipe. The rotating disc is driven by the motor to rotate, then the rotating rod is driven to swing, the water outlet plate can swing, and under the influence of inertia and gravity, the spraying area of atomized water is increased, so that the dust falling area is enlarged, and the dust falling effect is enhanced.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust suppression equipment, specifically relating to a dust suppression device used after blasting at the tunnel face. Background Technology

[0002] The tunnel face is a working face that continuously advances as the tunnel is excavated; it is not a fixed face. After blasting the tunnel face, a large amount of dust is generated. Currently, dust suppression after tunnel face blasting is mainly achieved through spraying or exhaust ventilation. For spraying dust suppression, if single-point positioning spraying is used, dust suppression can only be carried out in a designated area, resulting in low dust suppression efficiency and a small dust suppression area. If multi-point spraying dust suppression is used, the dust suppression equipment becomes more complex, costly, and requires a large area. Furthermore, as the tunnel face advances, the position of the dust suppression equipment needs to be constantly adjusted, which is inconvenient to operate and brings a large workload to the construction personnel. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dust suppression device for tunnel face blasting, which addresses the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a dust suppression device for tunnel face blasting, characterized in that: it includes an assembled hanging rail that moves with the tunnel face and a suspended dust suppression mechanism adapted to the assembled hanging rail. The suspended dust suppression mechanism includes a slider and a mounting base fixed to the bottom of the slider. A first mounting plate and a second mounting plate are arranged parallel to each other at the bottom of the mounting base. A turntable is rotatably connected inside the second mounting plate. A DC motor for driving the turntable to rotate forward and backward is provided on the first mounting plate. A rotating rod is hinged to the upper middle part of the second mounting plate through a rotating shaft. An elongated hole is opened on the rotating rod. A limiting block adapted to the elongated hole is fixedly provided on the turntable. A mounting bracket for installing an atomizer is fixedly connected to the bottom of the rotating rod. A water outlet plate is provided at the front end of the atomizer, and a water inlet is connected to the rear end of the atomizer.

[0005] The dust suppression equipment described above for use after blasting at the tunnel face is characterized in that: the prefabricated hanging rail includes multiple sections of hanging rail, and the hanging rail includes a fixed plate that can be detachably installed on the top surface of the tunnel and an inverted T-shaped slide rail that is fixedly installed on the bottom of the fixed plate.

[0006] The dust suppression equipment described above for use after blasting at the tunnel face is characterized in that: the fixing plate is detachably installed on the top surface of the tunnel by means of multiple fixing bolts.

[0007] The dust suppression equipment described above for use after blasting at the tunnel face is characterized in that: the inverted T-shaped slide rail includes two connecting plates fixedly connected to the bottom of the fixed plate and a slide rail fixedly disposed at the bottom of the two connecting plates and adapted to the slider, the width of the slide rail being greater than the width of the two connecting plates.

[0008] The dust suppression equipment described above for use after blasting at the tunnel face is characterized in that: the side wall of the slide rail is provided with a plurality of track positioning holes along the length direction, the side wall of the slider is provided with slider positioning holes adapted to the track positioning holes, and the insert rod passes through the slider positioning holes and the track positioning holes to fix the slider and the slide rail.

[0009] The dust suppression equipment described above for use after blasting at the tunnel face is characterized in that: a traction rope is connected to the side wall of the mounting base.

[0010] The beneficial effects of this utility model are that it has a novel and reasonable design. By setting a prefabricated hanging rail at the top of the tunnel, the rear single-section hanging rail can be removed and installed at the front end as the tunnel face advances. The layout is simple, and the suspended dust suppression mechanism does not need to be removed. It can be directly moved to the new single-section hanging rail by means of a traction rope. In addition, the motor drives the turntable to rotate, which in turn drives the rotating rod to swing, which can make the water outlet plate swing. Under the influence of inertia and gravity, the area sprayed by the atomized water is increased, thereby expanding the dust suppression area and enhancing the dust suppression effect. It is easy to promote and use.

[0011] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram showing the connection relationship between the second mounting plate, the rotating rod, and the mounting bracket of this utility model.

[0014] Explanation of reference numerals in the attached figures:

[0015] 1—Fixing plate; 2—Fixing bolts; 3—Connecting plate;

[0016] 4—Slide rail; 5—Slide rail positioning hole; 6—Slider;

[0017] 7—Slider positioning hole; 8—Mounting base; 9—First mounting plate;

[0018] 10—Second mounting plate; 11—Turntable; 12—DC motor;

[0019] 13—Rotating rod; 14—Rotating shaft; 15—Elongated hole;

[0020] 16—Limiting block; 17—Mounting bracket; 18—Atomizer;

[0021] 19—Water outlet plate; 20—Water supply pipe; 21—Traction rope. Detailed Implementation

[0022] like Figure 1 and Figure 2 As shown, this utility model includes a prefabricated hanging rail that moves with the tunnel face and a suspended dust suppression mechanism adapted to the prefabricated hanging rail. The suspended dust suppression mechanism includes a slider 6 and a mounting base 8 fixed to the bottom of the slider 6. A first mounting plate 9 and a second mounting plate 10 are arranged parallel to each other at the bottom of the mounting base 8. A turntable 11 is rotatably connected inside the second mounting plate 10. A DC motor 12 for driving the turntable 11 to rotate forward and backward is provided on the first mounting plate 9. A rotating rod 13 is hinged to the upper middle part of the second mounting plate 10 through a rotating shaft 14. An elongated hole 15 is opened on the rotating rod 13. A limiting block 16 adapted to the elongated hole 15 is fixedly provided on the turntable 11. A mounting bracket 17 for installing an atomizer 18 is fixedly connected to the bottom of the rotating rod 13. A water outlet plate 19 is provided at the front end water inlet of the atomizer 18, and a water supply pipe 20 is connected to the rear end water inlet of the atomizer 18.

[0023] It should be noted that by setting up a prefabricated hanging rail at the top of the tunnel, the rear single-section hanging rail can be removed and installed at the front as the tunnel face advances. The arrangement is simple, and the suspended dust suppression mechanism does not need to be removed. It can be directly moved to the new single-section hanging rail by means of a traction rope. In addition, the motor drives the turntable to rotate, which in turn drives the rotating rod to swing, causing the water outlet plate to swing. Under the influence of inertia and gravity, the area sprayed by the atomized water is increased, thereby expanding the dust suppression area and enhancing the dust suppression effect.

[0024] In this embodiment, the prefabricated hanging rail includes multiple hanging rail sections, and the hanging rail includes a fixed plate 1 that is detachably installed on the top surface of the tunnel and an inverted T-shaped slide rail that is fixedly installed on the bottom of the fixed plate 1.

[0025] In this embodiment, the fixing plate 1 is detachably installed on the top surface of the tunnel by a plurality of fixing bolts 2.

[0026] In this embodiment, the inverted T-shaped slide rail includes two connecting plates 3 fixedly connected to the bottom of the fixed plate 1 and a slide rail 4 fixedly disposed at the bottom of the two connecting plates 3 and adapted to the slider 6. The width of the slide rail 4 is greater than the width of the two connecting plates 3.

[0027] In this embodiment, the side wall of the slide rail 4 is provided with a plurality of track positioning holes 5 along the length direction, and the side wall of the slider 6 is provided with slider positioning holes 7 that are adapted to the track positioning holes 5. The insertion rod passes through the slider positioning hole 7 and the track positioning hole 5 to fix the slider 6 and the slide rail 4.

[0028] It should be noted that the purpose of having multiple track positioning holes 5 along the length of the side wall of the slide rail 4 is to adjust the distance between the suspended dust suppression mechanism and the working face, and to select the best position for spraying dust suppression. The purpose of inserting the rod through the slider positioning hole 7 and the track positioning hole 5 to fix the slider 6 and the slide rail 4 is to prevent the suspended dust suppression mechanism from shaking and falling off the suspension rail when the rotating rod rotates, thus ensuring the safety of the dust suppression process.

[0029] In this embodiment, a traction rope 21 is connected to the side wall of the mounting base 8.

[0030] When using this utility model, the assembled hanging rail composed of multiple hanging rail sections is spliced ​​together by positioning bolts 2. In subsequent work, the rear single hanging rail section can be removed and installed at the front end, which is simple to arrange. The hanging dust suppression mechanism does not need to be removed. The hanging dust suppression mechanism can be directly moved to the new single hanging rail section by traction. One worker can directly move the hanging dust suppression mechanism to the new single hanging rail section by pulling the traction rope. Once the suspended dust suppression mechanism is positioned, a rod is inserted through the slider positioning hole 7 and the track positioning hole 5 to fix the slider 6 and the slide rail 4, preventing the suspended dust suppression mechanism from derailing. Water is supplied to the water supply pipe 20 by a water pumping system, and then the water supply pipe 20 supplies water to the atomizer 18. The atomizer 18 converts the water into a mist, which is sprayed out from the water outlet plate 19, thereby achieving the dust suppression effect. The DC motor 12 is turned on to start working. The DC motor 12 drives the turntable 11 to rotate in the second mounting plate 10, changing the position of the limit block 16. The limit block 16 slides in the rotating rod 13, driving the rotating rod 13 to move. At this time, the rotating rod 13 rotates with the intersection with the rotating shaft as the origin, thereby driving the atomizer 18 to swing, so that the atomizer 14 and the water outlet plate 15 swing synchronously, which can increase the dust suppression area.

[0031] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A dust suppression device for use after blasting at the tunnel face, characterized in that: The system includes a prefabricated overhead rail that moves with the tunnel face and a suspended dust suppression mechanism adapted to the prefabricated overhead rail. The suspended dust suppression mechanism includes a slider (6) and a mounting base (8) fixed to the bottom of the slider (6). A first mounting plate (9) and a second mounting plate (10) are arranged parallel to each other at the bottom of the mounting base (8). A turntable (11) is rotatably connected inside the second mounting plate (10). A DC motor (12) for driving the turntable (11) to rotate forward and backward is provided on the first mounting plate (9). The upper middle part of the second mounting plate (10) is hinged to a rotating rod (13) via a rotating shaft (14). The rotating rod (13) has an elongated hole (15). A limiting block (16) adapted to the elongated hole (15) is fixedly installed on the turntable (11). A mounting bracket (17) for installing an atomizer (18) is fixedly connected to the bottom of the rotating rod (13). A water outlet plate (19) is provided at the front end of the atomizer (18). A water inlet is connected to the rear end of the atomizer (18) via a water pipe (20).

2. The dust suppression device for tunnel face blasting as described in claim 1, characterized in that: The prefabricated suspension rail includes multiple sections of suspension rail, which includes a detachable fixed plate (1) installed on the top surface of the tunnel and an inverted T-shaped slide rail fixedly installed on the bottom of the fixed plate (1).

3. The dust suppression device for tunnel face blasting as described in claim 2, characterized in that: The fixing plate (1) is detachably installed on the top surface of the tunnel by multiple fixing bolts (2).

4. The dust suppression device for tunnel face blasting as described in claim 2, characterized in that: The inverted T-shaped slide rail includes two connecting plates (3) fixedly connected to the bottom of the fixed plate (1) and a slide rail (4) fixedly set at the bottom of the two connecting plates (3) and adapted to the slider (6). The width of the slide rail (4) is greater than the width of the two connecting plates (3).

5. The dust suppression device for tunnel face blasting as described in claim 4, characterized in that: The slide rail (4) has multiple track positioning holes (5) along its length. The slide block (6) has a slide block positioning hole (7) that matches the track positioning hole (5) on its side wall. The insert rod passes through the slide block positioning hole (7) and the track positioning hole (5) to fix the slide block (6) and the slide rail (4).

6. The dust suppression device for tunnel face blasting as described in claim 1, characterized in that: A traction rope (21) is connected to the side wall of the mounting base (8).

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