Gas isolation device for controlling blast hole

Abstract

The utility model relates to a blast hole gas isolation control device, and belongs to the technical field of mine blasting. The device comprises isolation pieces (2), the isolation pieces (2) are arranged in the circumferential direction of the blast hole (3) at intervals, the explosive packages (4) are arranged in an inner cavity defined by the isolation pieces (2) at intervals, and the isolation pieces (2) are of an inflatable structure. According to the device, original bamboo chips are replaced by the inflatable separators (2), so that the explosive package (4) is conveniently mounted and fixed, safety accidents caused by collision of the explosive package (4) are avoided, and meanwhile, the stability of the explosive package (4) in the blast hole (3) is enhanced. The problem that in the prior art, bamboo chips are adopted for isolation, and the working efficiency, safety and reliability cannot meet the requirements is solved.

Description

Technical Field

[0001] This utility model relates to a gas isolation device for controlling blast holes, belonging to the field of mining blasting technology. Background Technology

[0002] Currently, safety issues such as the working platform and slope stability in mine blasting can easily pose significant hidden dangers. Therefore, to control the final slope stability and prevent damage, a method of isolating the blast hole is adopted, which involves decoupling the explosive charge to ensure a smooth, crack-free blast surface. Many blasting companies currently use bamboo strips for isolation. However, bamboo strips are hard materials and can easily collide with the explosive, potentially causing accidents. Furthermore, their efficiency and reliability do not meet requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the existing technology that uses bamboo strips for isolation cannot meet the requirements in terms of working efficiency and safety reliability.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a gas isolation device for controlling blast holes, including isolation components, the isolation components are arranged at intervals along the circumference of the blast hole, the explosive charges are arranged at intervals in the internal cavity enclosed by the isolation components, and the isolation components are inflatable structures.

[0005] In the above-mentioned device, there are 2 to 6 isolation components, which are spaced apart along the circumference of the blast hole.

[0006] Furthermore, the aforementioned device comprises three isolation components arranged in a triangular configuration.

[0007] Furthermore, the triangle formed by the isolation components in the above-mentioned device is an equilateral triangle, and the explosive charge is located at the center of the triangle.

[0008] The isolation component in the aforementioned device has a hollow structure and is provided with mesh reinforcing ribs on its inner wall.

[0009] Furthermore, the reinforcing ribs in the above-mentioned device are arranged along the inner wall of the isolation member.

[0010] In the above-mentioned device, the inner side of the isolation component has an arc-shaped structure.

[0011] In the aforementioned device, both the upper and lower ends of the isolation component are arc-shaped structures.

[0012] The isolation element in the aforementioned device is made of non-combustible material.

[0013] In the above-mentioned device, adjacent isolation components are connected by an inflation pipe.

[0014] The beneficial effects of this invention are as follows: The isolating component made of airtight and non-flammable material makes transportation, use, and installation safer and more reliable. The actual installation of this device is more convenient. After the rock drilling inspection of the blast hole is passed, the isolating component is placed in a triangular arrangement in three directions within the blast hole, followed by the placement of the explosive charge. Finally, the isolating component is inflated to ensure the explosive is positioned in the center of the triangle. Because the internal structure of the isolating component features a grid-like reinforcing rib, it will not deform after being filled with gas. This structure strengthens the stability of the explosive inside the blast hole, ensuring a consistent gap between the explosive and the rock wall without damaging the surface of the explosive charge, thus guaranteeing installation safety. Attached Figure Description

[0015] Figure 1 This is a schematic cross-sectional view of the present invention.

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the isolation component structure of this utility model.

[0018] The diagram is marked as follows: 1 is the blasting layer, 2 is the isolation element, 21 is the reinforcing rib, 3 is the blasting hole, and 4 is the explosive charge. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 3 The present invention discloses a gas isolation device for controlling a blast hole 3, comprising an isolation element 2. The isolation element 2 is spaced apart circumferentially along the blast hole 3, and the explosive charge 4 is spaced apart within the internal cavity enclosed by the isolation element 2. The isolation element 2 is an inflatable structure. Those skilled in the art will understand that this device replaces the original bamboo strips with inflatable isolation elements 2, reducing the hardness of the contact side of the explosive charge 4 and ensuring installation safety. To ensure sufficient contact and fixation with the explosive charge 4, the device preferably arranges the isolation element 2 spaced apart circumferentially along the blast hole 3. This structural arrangement allows the explosive charge 4 to be stably positioned within the blast hole 3 through the isolation element 2, ensuring the positional certainty of the explosive charge 4. Simultaneously, the isolation element 2 ensures that the distance between the outer wall of the explosive charge 4 and the blast hole 3 is consistent and does not damage the appearance of the explosive charge 4, making installation safer. Furthermore, the inflatable isolation element 2 is safer and more reliable during transportation, use, and placement. In this device, a blasting hole 3 is actually drilled in the blasting layer 1. After the blasting hole 3 passes the rock drilling inspection, the isolator 2 is placed in a triangular arrangement in three directions inside the blasting hole 3. Then the explosive charge 4 is placed. Finally, the isolator 2 is inflated to ensure that the explosive charge 4 is in the middle of the triangle of the isolator 2.

[0021] Preferably, the number of isolating elements 2 in the above-described device is 2 to 6, and they are spaced apart around the circumference of the blast hole 3. Those skilled in the art will understand that the preferred number of isolating elements 2 ensures the stability of the explosive charge 4 during installation. In practice, 2 to 6 isolating elements 2 can be appropriately selected and spaced apart around the circumference of the blast hole 3, depending on the size of the blast hole 3, so that the explosive charge 4 is located in the middle of the structure formed by the isolating elements 2.

[0022] Preferably, the above-mentioned device has three isolation elements 2 arranged in a triangular pattern. Those skilled in the art will understand that, in order to reduce costs and ensure the stability of the explosive charge 4 installation, this device preferably has three isolation elements 2 arranged in a triangular pattern, with the explosive charge 4 installed in the middle of the triangle.

[0023] Preferably, the triangle formed by the spacers 2 in the above-mentioned device is an equilateral triangle, and the explosive charge 4 is located at the center of the triangle. Those skilled in the art will understand that, in order to ensure a consistent distance between the outer side of the explosive charge and the inner wall of the blast hole 3, this device further preferably has the spacers 2 forming an equilateral triangle, with the explosive charge 4 located at the center of the triangle.

[0024] Preferably, the isolation element 2 in the above-mentioned device has a hollow structure, and a mesh-like reinforcing rib 21 is provided on its inner wall. Those skilled in the art will understand that the device further preferably has a hollow structure for the isolation element 2. Furthermore, to ensure that the isolation element 2 does not deform after inflation, reinforcing ribs 21 are further provided on the inner wall of the isolation element 2. The reinforcing ribs 21 are arranged in a mesh-like structure. Preferably, the reinforcing ribs 21 are arranged along the inner wall of the isolation element 2, and the reinforcing ribs 21 on each inner wall are connected to form a hollow structure, ensuring that the isolation element 2 will not deform after being filled with gas.

[0025] Preferably, the reinforcing ribs 21 in the above-described device are arranged along the inner wall of the spacer 2. Those skilled in the art will understand that, in order to ensure that the spacer 2 does not deform or deforms as little as possible after inflation, the reinforcing ribs 21 are arranged along the inner wall of the spacer 2 in this device.

[0026] Preferably, the inner side of the isolation element 2 in the above-mentioned device has an arc-shaped structure. Those skilled in the art will understand that the preferred arc-shaped structure of the inner side of the isolation element 2 increases the contact area between the isolation element 2 and the explosive charge 4, ensuring stable placement.

[0027] Preferably, the upper and lower ends of the isolation member 2 in the above-described device are both arc-shaped structures. Those skilled in the art will understand that the preferred structure of the isolation member 2, with both its upper and lower ends being arc-shaped, reduces manufacturing costs.

[0028] Preferably, the insulating element 2 in the above-described device is made of a non-combustible material. Those skilled in the art will understand that, to ensure safe transportation and installation, the insulating element 2 is preferably made of a non-combustible material, such as rock wool.

[0029] Preferably, in the above-mentioned device, adjacent isolation members 2 are connected by an inflation pipe. Those skilled in the art will understand that, to ensure convenient inflation, this device preferably connects adjacent isolation members 2 via an inflation pipe, enabling rapid inflation and improving installation efficiency.

Claims

1. A control blasthole gas isolation device, characterized by: It includes an isolation element (2), which is arranged at intervals around the blast hole (3), and explosive charges (4) are arranged at intervals in the internal cavity enclosed by the isolation element (2), and the isolation element (2) is an inflatable structure.

2. A gas isolation device for a blast hole according to claim 1, characterised in that: The isolation element (2) consists of 2 to 6 units and is spaced apart circumferentially along the blast hole (3).

3. A gas exclusion device for a blast hole according to claim 2, wherein: There are three isolation components (2), arranged in a triangular pattern.

4. A gas exclusion device for a blast hole according to claim 3, wherein: The triangle formed by the isolation component (2) is an equilateral triangle, and the explosive charge (4) is located in the middle of the triangle.

5. The gas isolation device for controlling blast holes according to claim 1, characterized in that: The isolation component (2) is a hollow structure, and a mesh reinforcing rib (21) is provided on the inner wall.

6. A gas exclusion device for a blast hole according to claim 5 wherein: The reinforcing ribs (21) are arranged along the inner wall of the isolation member (2).

7. A gas exclusion device for a blasting hole according to claim 1, wherein: The inner side of the isolation component (2) has an arc-shaped structure.

8. A gas exclusion device for a blast hole according to claim 1 wherein: The upper and lower ends of the isolation component (2) are both arc-shaped structures.

9. A gas exclusion device for a blasting hole according to claim 1, wherein: The isolation element (2) is made of non-combustible material.

10. A gas exclusion device for a blast hole according to claim 1, characterised in that: Adjacent isolation components (2) are connected by an air inflator.

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