A spot blasting type shaft dredging device

Abstract

The utility model provides a kind of point blasting formula chute dredging device, including explosive package, aircraft and fuse, the explosive package is solidly connected with the aircraft, one end of the fuse is solidly connected with the explosive package, another end of the fuse extends outward via the top entrance of chute or the bottom outlet of chute.Adopt the technical scheme of the utility model, explosive package is carried by aircraft, when aircraft touches ore at chute block point during flying in chute, aircraft cannot continue to fly, at this time, detonating explosive package can blow up chute block point, to dredge chute, compared with prior art, when the size of chute depth is larger, operator does not need to calculate chute block point position, and operator can release aircraft from transport roadway, so that explosive package is detonated below chute block point, to improve dredging effect.

Description

Technical Field

[0001] This utility model belongs to the field of mining equipment technology, and in particular to a fixed-point blasting chute clearing device. Background Technology

[0002] In mining operations, ore is transported frequently. To improve transportation efficiency and save costs, ore passes are typically constructed to directly dump ore from top to bottom. The ore is first fed into the transport roadway through the ore pass's outlet and then transported to the designated ore storage site. However, after the ore is dumped into the ore pass, some ore is sticky and prone to clumping, which can easily cause blockages in the ore pass as it falls. To ensure smooth mining operations, it is necessary to unclog the ore pass.

[0003] In the prior art, patent document with publication number "CN109612357A" discloses a method and device for clearing blockages in chutes using blasting with a covering material. The device includes a covering container, an explosive charge, and a lifting mechanism. The blasting method includes the following steps: First, calculating the height of the blockage in the chute from the upper chute connecting channel; Second, hoisting the explosive charge to the upper surface of the blockage and extending the detonating cord connected to the explosive charge to the upper chute connecting channel for fixation; Third, filling the blockage with a covering material to completely cover the explosive charge; Fourth, detonating the explosive charge to perform downward directional blasting to clear the blockage. This patented technology utilizes the reverse force to improve the energy utilization rate of the explosive and improve the efficiency of clearing blockages in chutes.

[0004] However, when the depth of the chute is too large, the blockage point is often difficult to measure, and the blockage point cannot be observed by the naked eye. The explosive charge dropped from above the chute can also easily block the blockage point itself, resulting in limited effectiveness of the blasting method. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a fixed-point blasting well dredging device.

[0006] This utility model is achieved through the following technical solution.

[0007] This utility model provides a fixed-point blasting manhole clearing device, including an explosive charge, a flying vehicle, and a detonator. The explosive charge is fixedly connected to the flying vehicle, one end of the detonator is fixedly connected to the explosive charge, and the other end of the detonator extends outward through the top inlet or bottom outlet of the manhole.

[0008] The aircraft is also fixed to one end of a traction rope, the other end of which extends outward through the top inlet or bottom outlet of the chute, and at least a portion of the lead wire is wrapped or tied together with the traction rope.

[0009] The surface of the aircraft is provided with a sinkhole, and the explosive charge is contained in the sinkhole.

[0010] The explosive charge is secured to the aircraft using cotton thread.

[0011] The aircraft is also fixedly connected to a limiting ring, which surrounds the explosive charge.

[0012] The limiting ring is circular, triangular, or polygonal.

[0013] The aircraft can be replaced by an airbag filled with a counterweight gas source.

[0014] The counterweight gas source is hydrogen, helium, or nitrogen.

[0015] The beneficial effects of this utility model are as follows: By adopting the technical solution of this utility model, an aircraft carries an explosive charge. When the aircraft touches the ore at the blockage point of the ore pass during its flight in the ore pass, the aircraft cannot continue to fly. At this time, the explosive charge can be detonated to destroy the blockage point of the ore pass, thereby clearing the ore pass. Compared with the prior art, when the depth of the ore pass is large, the operator does not need to calculate the location of the blockage point. Moreover, the operator can release the aircraft from the transport tunnel so that the explosive charge can be detonated below the blockage point of the ore pass, thus improving the clearing effect. Attached Figure Description

[0016] Figure 1 This is the front view of this utility model; Figure 2 This is a utility model Figure 1 A magnified view of a section at point I; Figure 3 This is a top view of the present invention; Figure 4 This is a utility model Figure 3 A magnified view of section II in the middle.

[0017] In the diagram: 1-Explosive charge, 2-Aircraft, 3-Fuse, 4-Crate, 5-Traction rope, 6-Settling trough, 7-Cotton thread, 8-Limiting ring. Detailed Implementation

[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0019] like Figures 1 to 4 As shown, this utility model provides a fixed-point blasting manhole clearing device, including an explosive charge 1, a flying device 2 and a fuse 3. The explosive charge 1 is fixedly connected to the flying device 2, one end of the fuse 3 is fixedly connected to the explosive charge 1, and the other end of the fuse 3 extends outward through the top inlet or the bottom outlet of the manhole 4.

[0020] The technical solution of this utility model uses an aircraft to carry an explosive charge. When the aircraft touches the ore at the blockage point in the ore pass during its flight, it can no longer fly. At this time, the explosive charge can be detonated to destroy the blockage point and thus clear the ore pass. Compared with the existing technology, when the ore pass is deep, the operator does not need to calculate the location of the blockage point. Moreover, the operator can release the aircraft from the transport tunnel so that the explosive charge detonates below the blockage point, improving the clearing effect.

[0021] Specifically, the aircraft 2 is also fixedly connected to one end of the tow rope 5, and the other end of the tow rope 5 extends outward through the top inlet or bottom outlet of the chute 4. At least a portion of the lead wire 3 is wrapped or tied together with the tow rope 5. Using the technical solution of this utility model, when the aircraft 2 is flying inside the chute, the tow rope 5 is used to control the flight direction of the aircraft 2 and prevent the aircraft 2 from getting stuck on the inner wall of the chute.

[0022] Additionally, the surface of the aircraft 2 is provided with a sink 6, within which the explosive charge 1 is housed. The explosive charge 1 is secured to the aircraft 2 using cotton thread 7. The aircraft 2 is also secured to a retaining ring 8, which surrounds the explosive charge 1. Preferably, the retaining ring 8 is circular, triangular, or polygonal. The aircraft 2 can be replaced with a gasbag filled with a counterweight gas source. Preferably, the counterweight gas source is hydrogen, helium, or nitrogen.

Claims

1. A fixed-point blasting type well chute clearing device, characterized in that: It includes an explosive charge (1), a vehicle (2) and a fuse (3). The explosive charge (1) is fixedly connected to the vehicle (2). One end of the fuse (3) is fixedly connected to the explosive charge (1), and the other end of the fuse (3) extends outward through the top inlet of the chute (4) or the bottom outlet of the chute (4).

2. The fixed-point blasting well dredging device as described in claim 1, characterized in that: The aircraft (2) is also fixed to one end of the traction rope (5), the other end of which extends outward through the top inlet of the chute (4) or the bottom outlet of the chute (4), and at least a portion of the lead wire (3) is wrapped or tied together with the traction rope (5).

3. The fixed-point blasting well dredging device as described in claim 1, characterized in that: The surface of the aircraft (2) is provided with a sinkhole (6), and the explosive charge (1) is contained in the sinkhole (6).

4. The fixed-point blasting well dredging device as described in claim 1, characterized in that: The explosive charge (1) is tied to the aircraft (2) with cotton thread (7).

5. The fixed-point blasting well dredging device as described in claim 1, characterized in that: The aircraft (2) is also fixedly connected to a limiting ring (8), which surrounds the explosive charge (1).

6. The fixed-point blasting well dredging device as described in claim 5, characterized in that: The limiting ring (8) is a circular ring, a triangle, or a polygon.

7. A fixed-point blasting type well chute clearing device as described in any one of claims 1 to 5, characterized in that: The aircraft (2) can be replaced by an airbag filled with a counterweight gas source.

8. The fixed-point blasting well dredging device as described in claim 7, characterized in that: The counterweight gas source is hydrogen, helium, or nitrogen.

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