Dust falling device for blasting engineering

Abstract

The utility model belongs to the technical field of blasting dust falling equipment, and particularly relates to a dust falling device for blasting engineering. According to the specific technical scheme, the dust suppression device comprises a dust suppression system, the dust suppression system comprises a rack main body, a spraying assembly and an adjusting assembly, and the spraying assembly and the adjusting assembly are arranged on the rack main body; the adjusting assembly comprises a rack and an adjusting screw rod driven by a motor, and the spraying assembly is in threaded connection with the adjusting screw rod, so that the spraying assembly ascends / descends; the spraying angle of the spraying assembly is changed through the rack. When the spraying assembly is close to the top of the tunnel, the spraying angle of the spraying assembly faces downwards, the situation that part of spraying water is wasted due to the fact that the spraying water is sprayed to the top of the tunnel is avoided, and the utilization rate of the spraying water is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of blasting dust reduction processing equipment, and in particular relates to a dust reduction device used in blasting engineering. Background Art

[0002] When digging a tunnel, a lot of blasting operations are required, and a lot of dust will be generated during the blasting process. High concentrations of dust not only reduce air quality, lead to a poor working environment, and increase work risks, but also endanger the physical and mental health of employees and lead to a high incidence of pneumoconiosis. At present, the main method to reduce dust generated by blasting is to spray water through an external high-pressure pipe network. However, the few existing dust reduction devices not only consume a lot of water, are bulky and inconvenient to move, but also have inconvenient adjustment of parameters such as spray angle and height, resulting in a small spraying range. Dust reduction operations cannot be completed efficiently in complex and changeable dust environments. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a dust suppression device for blasting engineering.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a dust reduction device for blasting engineering, including a dust reduction system, the dust reduction system includes a frame body, a spray assembly, and an adjustment assembly, the spray assembly and the adjustment assembly are arranged on the frame body; the adjustment assembly includes a rack and an adjustment screw driven by a motor, the spray assembly is threadedly connected to the adjustment screw to make the spray assembly rise / fall; the rack can change the spray angle of the spray assembly.

[0005] Preferably, the spray assembly includes a support seat, an adjusting gear, and a fixed plate, the fixed plate is provided with a nozzle, the adjusting gear is rotatably provided on the support seat, the fixed plate is connected to the adjusting gear via a connecting shaft, and the adjusting gear and the fixed plate rotate synchronously; when the spray assembly rises to a certain height, the adjusting gear engages with the rack.

[0006] Preferably, the fixing plate is an arc-shaped fixing plate, a plurality of the nozzles are arranged on the arc-shaped fixing plate, and the spraying direction of the nozzles is located outside the arc-shaped fixing plate.

[0007] Preferably, a limiting slide groove is provided on the frame body along the vertical direction, and a limiting portion adapted to the limiting slide groove is provided on the fixing plate.

[0008] Preferably, the limiting portion is a limiting nut, a locking screw is provided on the support seat, a locking nut is provided at one end of the locking screw away from the limiting nut, and both ends of the locking screw are threadedly connected to the limiting nut and the locking nut respectively.

[0009] Preferably, several of the nozzles are connected to the water tank via connecting water pipes.

[0010] Preferably, a power pump is provided on the connecting water pipe.

[0011] Preferably, a plurality of connecting rods are provided on the inner side of the arc-shaped fixing plate, and one end of the plurality of connecting rods away from the arc-shaped fixing plate is connected to the rotating part, the rotating part is fixedly sleeved on one end of the connecting shaft, and the other end of the connecting shaft is fixedly connected to the adjusting gear.

[0012] Preferably, it also includes a control system, which includes a microprocessor and a dust concentration sensor. The dust concentration sensor is communicatively connected to the microprocessor, and the microprocessor is communicatively connected to the motor and the power pump.

[0013] Preferably, dust concentration sensors are provided on the upper and lower parts of the frame body.

[0014] This application has the following beneficial effects:

[0015] The present application arranges a spray assembly and an adjustment assembly on the main body of the frame. The adjustment assembly drives the spray assembly to move up and down on the main body of the frame, thereby changing the height of the spray assembly to adapt to different occasions. The adjustment assembly includes a rack and an adjustment screw driven by a motor. The spray assembly is threadedly connected to the adjustment screw. The motor drives the adjustment screw to rotate, and the adjustment screw drives the spray assembly to rise / fall. The rack is fixedly arranged on the main body of the frame. The rack cooperates with the spray assembly to change the spray angle of the spray assembly. As the height of the spray assembly on the main body of the frame increases, the spray angle of the spray assembly gradually faces downward. In this way, when the spray assembly is close to the top of the tunnel, the spray angle of the spray assembly faces downward, avoiding the spray water from spraying to the top of the tunnel, thereby causing a part of the spray water to be wasted, and improving the utilization rate of the spray water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main view direction of the dust suppression device of the utility model (the water tank is not shown in the figure);

[0017] Figure 2 This is a schematic diagram of the main view direction of the dust suppression device of the utility model (the water tank and the fixing plate are not shown in the figure);

[0018] Figure 3 It is a right side view of the dust suppression device of the utility model.

[0019] In the figure: frame body 1, motor 2, support seat 3, dust concentration sensor 4, rack 5, adjusting screw 6, limiting slide groove 7, locking screw 8, locking nut 9, adjusting gear 10, first fixed seat 11, limiting nut 12, second fixed seat 13, connecting rod 14, rotating part 15, nozzle 16, arc fixing plate 17, water tank 18, connecting water pipe 19, microprocessor 20, connecting shaft 21. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0021] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do 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 therefore should not be understood as a limitation on the present invention.

[0022] like Figure 1-3 As shown, the utility model discloses a dust suppression device for blasting engineering, including a dust suppression system, the dust suppression system includes a frame body 1, a spray assembly, and an adjustment assembly, the spray assembly and the adjustment assembly are arranged on the frame body 1, and the adjustment assembly drives the spray assembly to move up and down on the frame body 1, thereby changing the height of the spray assembly to adapt to different occasions. The adjustment assembly includes a rack 5 and an adjustment screw 6 driven by a motor 2, the spray assembly is threadedly connected to the adjustment screw 6, the motor 2 drives the adjustment screw 6 to rotate, and the adjustment screw 6 drives the spray assembly to rise / fall. The rack 5 is fixedly arranged on the frame body 1, and the rack 5 cooperates with the spray assembly to change the spray angle of the spray assembly. Specifically, as the height of the spray assembly on the frame body 1 increases, the spray angle of the spray assembly gradually faces downward, so that when the spray assembly is close to the top of the tunnel, the spray angle of the spray assembly faces downward, avoiding the spray water from spraying to the top of the tunnel, thereby causing a part of the spray water to be wasted, and improving the utilization rate of the spray water.

[0023] Preferably, the rack 5 is fixedly arranged on the upper part of the frame body 1. When the spray assembly is close to the top of the tunnel, the spray water is prevented from spraying toward the top of the tunnel.

[0024] Furthermore, the spray assembly includes a support seat 3, an adjusting gear 10, and a fixed plate, on which a plurality of nozzles 16 are evenly arranged; a first fixed seat 11 and a second fixed seat 13 are fixedly arranged on the support seat 3, an adjusting gear 10 is rotatably arranged on the first fixed seat 11, a rotating part 15 is rotatably arranged on the second fixed seat 13, the fixed plate is fixedly connected to the rotating part 15, the adjusting gear 10 and the rotating part 15 are respectively fixedly sleeved on the two ends of the connecting shaft 21, the two ends of the connecting shaft 21 are respectively rotatably connected to the first fixed seat 11 and the second fixed seat 13, and the adjusting gear 10 is meshed with the rack 5. When the spray assembly rises to the point where the adjusting gear 10 is meshed with the rack 5, the spray assembly continues to rise, driving the adjusting gear 10 to rotate, and the adjusting gear 10 drives the rotating part 15 to rotate through the connecting shaft 21, thereby driving the fixed plate to rotate, thereby changing the spray angle of the nozzle 16 on the fixed plate.

[0025] Further, the fixing plate is an arc-shaped fixing plate 17, and a plurality of the nozzles 16 are arranged on the arc-shaped fixing plate 17, and the spraying direction of the nozzles 16 is located outside the arc-shaped fixing plate 17. Here, the outside of the arc-shaped fixing plate 17 refers to the side away from the center of the arc-shaped fixing plate 17, and the inside of the arc-shaped fixing plate 17 refers to the side close to the center of the arc-shaped fixing plate 17. By providing the arc-shaped fixing plate 17, preferably a quarter-circular arc fixing plate, the spraying range of the nozzles 16 is widened and the dust reduction rate is improved.

[0026] Furthermore, a limiting slide groove 7 is provided on the rack body 1 along the vertical direction, and a limiting portion adapted to the limiting slide groove 7 is provided on the fixed plate to limit the spray assembly from moving up and down on the rack body 1 along the vertical direction.

[0027] Furthermore, the limiting part is a limiting nut 12, a locking screw 8 is provided on the support seat 3, a locking nut 9 is provided at one end of the locking screw 8 away from the limiting nut 12, and both ends of the locking screw 8 are respectively threadedly connected with the limiting nut 12 and the locking nut 9. When the spray assembly is raised or lowered on the rack body 1, the locking nut 9 is adjusted, the locking screw 8 is screwed outward, and the locking screw 8 is partially screwed out (but not completely screwed out) from the limiting nut 12; when the spray assembly needs to be fixed on the rack body 1, the locking screw 8 is screwed inward, and the locking screw 8 is screwed into the limiting nut 12 until the end of the locking screw 8 is tightly pressed against the limiting slide groove 7.

[0028] Furthermore, a plurality of the nozzles 16 are connected to the water tank 18 via a connecting water pipe 19. The connecting water pipe 19 is provided with a power pump.

[0029] Furthermore, a plurality of connecting rods 14 are disposed on the inner side of the arc-shaped fixing plate 17 , and one end of the plurality of connecting rods 14 away from the arc-shaped fixing plate 17 is connected to the rotating part 15 .

[0030] Furthermore, the dust reduction device also includes a control system, which includes a microprocessor 20 and a dust concentration sensor 4. The dust concentration sensor 4 is connected to the microprocessor 20 in communication, and the microprocessor 20 is connected to the motor 2 and the power pump in communication. The dust concentration sensor 4 detects the dust concentration value in the tunnel in real time and transmits the dust concentration value to the microprocessor 20 in real time. When the dust concentration value is greater than a preset value, the microprocessor 20 controls the motor 2 and the power pump to start, thereby controlling the dust reduction system to work.

[0031] According to a preferred technical solution, dust concentration sensors 4 are provided on the upper and lower parts of the frame body 1 .

[0032] The working principle of a dust suppression device for blasting engineering: During tunnel blasting, the dust concentration sensor 4 detects the dust concentration value in the tunnel in real time, and transmits the detected dust concentration value to the microprocessor 20 in real time. When the dust concentration value is greater than the preset value, the microprocessor 20 controls the power pump to work, thereby controlling the dust suppression system to work. When the dust concentration value detected by the dust concentration sensor 4 on the upper part of the frame body 1 is high, the microprocessor 20 controls the motor 2 to work, raise the spray assembly to the upper part of the frame body 1, and adjusts the spray angle of the nozzle 16 by adjusting the gear 10 and the rack 5.

[0033] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A dust suppression device for blasting engineering, characterized by: The invention comprises a dust reduction system, the dust reduction system comprises a frame body, a spray assembly and an adjustment assembly, the spray assembly and the adjustment assembly are arranged on the frame body (1); the adjustment assembly comprises a rack (5) and an adjustment screw (6) driven by a motor (2); the spray assembly is threadedly connected to the adjustment screw (6) to make the spray assembly rise / fall; the rack (5) can change the spray angle of the spray assembly.

2. A dust suppression device for blasting engineering according to claim 1, characterized in that: The spray assembly comprises a support seat (3), an adjusting gear (10), and a fixed plate (17); a nozzle (16) is arranged on the fixed plate (17); the adjusting gear (10) is rotatably arranged on the support seat (3); the fixed plate (17) is connected to the adjusting gear (10) via a connecting shaft (21); the adjusting gear (10) and the fixed plate (17) rotate synchronously; when the spray assembly rises to a certain height, the adjusting gear (10) meshes with the rack (5).

3. A dust suppression device for blasting engineering according to claim 2, characterized in that: The fixing plate is an arc-shaped fixing plate (17), a plurality of the nozzles (16) are arranged on the arc-shaped fixing plate (17), and the spraying direction of the nozzles (16) is located outside the arc-shaped fixing plate (17).

4. A dust suppression device for blasting engineering according to claim 3, characterized in that: A limiting slide groove (7) is arranged on the frame body (1) along the vertical direction, and a limiting portion adapted to the limiting slide groove (7) is arranged on the fixing plate.

5. A dust suppression device for blasting engineering according to claim 4, characterized in that: The limiting portion is a limiting nut (12), a locking screw (8) is arranged on the support seat (3), a locking nut (9) is arranged at one end of the locking screw (8) away from the limiting nut (12), and the two ends of the locking screw (8) are respectively threadedly connected to the limiting nut (12) and the locking nut (9).

6. A dust suppression device for blasting engineering according to claim 5, characterized in that: A plurality of the nozzles (16) are connected to a water tank (18) via a connecting water pipe (19).

7. A dust suppression device for blasting engineering according to claim 6, characterized in that: The connecting water pipe (19) is provided with a power pump.

8. The dust suppression device for blasting engineering according to claim 5, characterized in that: A plurality of connecting rods (14) are arranged on the inner side of the arc-shaped fixing plate (17), and one end of the plurality of connecting rods (14) away from the arc-shaped fixing plate (17) is connected to a rotating part, and the rotating part is fixedly sleeved on one end of a connecting shaft (21), and the other end of the connecting shaft (21) is fixedly connected to the adjusting gear (10).

9. The dust suppression device for blasting engineering according to claim 7, characterized in that: It also includes a control system, which includes a microprocessor (20) and a dust concentration sensor (4). The dust concentration sensor (4) is communicatively connected to the microprocessor (20), and the microprocessor (20) is communicatively connected to the motor (2) and the power pump.

10. A dust suppression device for blasting engineering according to claim 9, characterized in that: Dust concentration sensors (4) are provided on the upper part and the lower part of the frame body (1).

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